A drilling tool make-up device and iron roughneck having the same

Abstract

The present application relates to a kind of drilling tool and the iron driller with it, wherein, including support, clamping arm, swing arm, swing mechanism and positioning assembly;The clamping arm is movably installed on the positioning assembly, the positioning assembly is rotatably installed on the support, and its rotation axis is transversely oriented;The swing mechanism is installed to the support, and the swing arm is rotatably installed to the swing mechanism, to drive the swing arm to rotate in horizontal plane, with the clamping arm and release drilling tool;When the clamping part of the clamping arm and the swing arm is clamped the drilling tool, the drilling tool can only be transversely positioned;The support can be installed on the body of iron driller.It has beneficial effects that the drilling tool and the iron driller can be directly installed on the iron driller, the structure is small in size, does not occupy the space of drilling platform, and its mechanization degree is high, and safety and operation efficiency are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of oil drilling technology, and more particularly to a drill string coupling device and an iron driller having the same. Background Technology

[0002] Currently, with the development of oil drilling, highly mechanized wellhead hydraulic oil tools (such as power drill pipe tongs, power casing tongs, and iron drills) are being used more and more widely. During drilling platform operations, drill string connections are required. Typically, a hydraulic chuck holds a drill string approximately 28.5m long, suspending it at the wellhead. Directly below is the drill string located inside the wellhead. During connection, the male connector at the bottom of the suspended drill string needs to be aligned with the female connector at the top of the drill string inside the wellhead. Currently, some problems exist in this alignment operation: 1. The drill string's center of gravity is tilted immediately after hoisting; 2. The working environment is relatively harsh, with frequent wind action on the suspended drill string; 3. The traveling system sways. These factors cause the drill string to continuously sway, making it impossible to align the male connector at the bottom of the suspended drill string with the female connector at the top of the drill string inside the wellhead.

[0003] Currently, to solve the above problems, manual assistance or drilling surface robotic arms are typically used for the coupling operation. Drilling surface robotic arms are separate, heavy-duty devices used on the drilling platform to grasp and push the drill string to complete the coupling operation. Due to the limited space on drilling platforms, existing drilling surface robotic arms are large, interfere with other equipment, and occupy a lot of space, often resulting in insufficient installation space. Manual assistance, on the other hand, presents safety hazards and low operational efficiency.

[0004] Therefore, there is an urgent need for a drill bit coupling device with high safety and high operating efficiency, and an iron driller with it. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a drill bit coupling device and an iron driller having the same, which solves the technical problems of low safety and low operating efficiency of the prior art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0009] In a first aspect, embodiments of the present invention provide a drill bit coupling device, including a bracket, a clamping arm, a swing arm, a swing mechanism, and a positioning assembly. The clamping arm is movably mounted on the positioning assembly, and the positioning assembly is rotatably mounted on the bracket, with its rotation axis oriented laterally. The swing mechanism is mounted on the bracket, and the swing arm is rotatably mounted on the swing mechanism to drive the swing arm to rotate in a horizontal plane, clamping and releasing the drill bit with the clamping arm. When the clamping portions of both the clamping arm and the swing arm clamp the drill bit, they can only provide lateral limitation on the drill bit. The bracket can be mounted on a drill bit body.

[0010] Optionally, the bracket has an arc-shaped mounting opening. The positioning assembly includes a limiting rod, a limiting plate, a transmission screw, and a handwheel. The first end of the limiting rod is slidably mounted in the arc-shaped mounting opening, and the second end of the limiting rod is rotatably mounted to the bracket via the limiting plate. The transmission screw extends in the front-to-back direction and is rotatably mounted to the bracket, with its rotation axis oriented laterally. The handwheel is mounted on one end of the transmission screw, and the transmission screw and the limiting rod are parallel to each other. The clamping arm screws onto the transmission screw, and the clamping arm slidably engages with the limiting rod. Rotating the handwheel can drive the clamping arm to move back and forth along the transmission screw.

[0011] Optionally, the limiting plate has a positioning hole, and the bracket has a corresponding insertion hole. The positioning assembly also includes a quick-connect pin, which can be inserted into the positioning hole and the insertion hole.

[0012] Optionally, the arc of the arc-shaped mounting opening is 180°.

[0013] Optionally, the mounting height of the clamping arm is higher than the mounting height of the swing arm.

[0014] Optionally, the positioning component further includes a positioning pointer and a scale. The positioning pointer is mounted on the clamping arm, and the scale extends along the front-to-back direction and is mounted on the bracket, with the scale located below the positioning pointer.

[0015] Optionally, the swing mechanism includes a swing driver and a mounting base. The swing driver is mounted to the bracket via the mounting base, and the swing arm is rotatably mounted to the mounting base and connected to the swing driver.

[0016] Optionally, an inlet is mounted on the clamping arm.

[0017] Optionally, the clamping parts of both the clamping arm and the swing arm are limiting rollers.

[0018] In a second aspect, embodiments of the present invention also provide a steel drill, including the aforementioned drill bit fastening device and the steel drill body, wherein the bracket is mounted on the steel drill body.

[0019] (III) Beneficial Effects

[0020] The beneficial effects of this invention are:

[0021] This invention provides a drill string coupling device that can be installed on a steel drill press. The position of the clamping arm is adaptively adjusted forward and backward according to the drill string model being coupled. A swing mechanism drives the swing arm to rotate in the horizontal plane, cooperating with the clamping arm to hold the drill string. The swing arm and the clamping part of the clamping arm provide lateral restraint for the drill string, while the vertical movement of the drill string is unrestricted, preventing drill string swaying without affecting the descent and coupling. A positioning component allows the clamping arm to rotate without affecting the coupling operation of larger drill collars. Compared to existing technologies, this drill string coupling device can be directly installed on a steel drill press, has a small structural volume, does not occupy drilling platform space, and offers a high degree of mechanization, significantly improving safety and operational efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the drill bit coupling device in Embodiment 1 of the present invention;

[0023] Figure 2 This is an exploded view of the drill bit coupling device in Embodiment 1 of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the drill bit clamping device after rotating 180° in Embodiment 1 of the present invention;

[0025] Figure 4 This is a schematic diagram of the iron drill in Embodiment 2 of the present invention.

[0026] [Explanation of Labels in the Attached Image]

[0027] 1: Bracket 11: Arc-shaped mounting port;

[0028] 2: Clamping arm; 21: Guide component; 22: First limit roller;

[0029] 3: Swing arm; 31: Second limit roller;

[0030] 4: Swing mechanism; 41: Swing driver; 42: Mounting base;

[0031] 51: Limit rod; 52: Limit plate; 53: Drive screw; 54: Handwheel; 55: Quick-release pin; 56: Positioning pointer; 57: Scale;

[0032] 6: The body of the iron driller. Detailed Implementation

[0033] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art. In this document, "upper," "lower," "front," and "rear" are terms representing directions. Figure 1 The orientation is used as a reference.

[0034] Example 1:

[0035] like Figure 1 and Figure 2 This embodiment provides a drill bit clamping device, including a bracket 1, a clamping arm 2, a swing arm 3, a swing mechanism 4, and a positioning assembly. The clamping arm 2 is movably mounted on the positioning assembly, and the positioning assembly is rotatably mounted on the bracket 1, with its rotation axis oriented laterally (front-back direction). The swing mechanism 4 is mounted on the bracket 1, and the swing arm 3 is rotatably mounted on the swing mechanism 4, with its rotation axis oriented vertically (up-down direction), to drive the swing arm 3 to rotate in the horizontal plane, clamping and releasing the drill bit with the clamping arm 2. When the clamping parts of the clamping arm 2 and the swing arm 3 clamp the drill bit, they can only limit the drill bit laterally. The bracket 1 can be mounted on the drill bit body 6. A guide member 21 is installed on the clamping arm 2, which can guide the drill bit to the clamping part of the clamping arm 2 to prevent the drill bit from shifting. The installation height of the clamping arm 2 is higher than the installation height of the swing arm 3, which can form a staggered clamping when the two clamp the drill bit, improving the straightening effect of the drill bit.

[0036] Specifically, the principle is as follows: the drill string alignment device can be installed on a steel drill press. Depending on the drill string model to be aligned, the position of the clamping arm 2 is adaptively adjusted forward and backward. The swinging mechanism 4 drives the swinging arm 3 to rotate in the horizontal plane, cooperating with the clamping arm 2 to hold the drill string. The swinging arm 3 and the clamping part of the clamping arm 2 provide lateral restraint for the drill string, while the vertical lifting and lowering of the drill string is unrestricted. This prevents drill string swaying without affecting the descent and alignment of the drill string. When performing alignment operations on large drill collars, due to their greater weight, they will not deviate and do not require the assistance of the drill string alignment device. The positioning component can drive the clamping arm 2 to rotate, without affecting the alignment operation of larger drill collars. Compared with existing technologies, this drill string alignment device can be directly installed on a steel drill press, has a small structural volume, does not occupy the space of the drilling platform, and has a high degree of mechanization, greatly improving safety and operational efficiency.

[0037] Furthermore, such as Figure 1 and Figure 2 As shown, both the clamping arm 2 and the swing arm 3 have limiting rollers in their clamping parts. Specifically, the limiting rollers include a first limiting roller 21 and a second limiting roller 31. The two first limiting rollers 21 are rotatably mounted on the inner side of the main body of the clamping arm 2, and the two limiting rollers are arranged in a V-shape, which can position the drill string laterally so that the drill string is aligned with the connector at the top of the drill string in the wellhead, facilitating the connection operation. The second limiting roller 31 is rotatably mounted on the inner side of the main body of the swing arm 3. Thus, the limiting rollers can achieve lateral limiting of the drill string, but will not limit the drill string vertically, so as not to affect the descent of the drill string for connection.

[0038] Furthermore, such as Figure 1 and Figure 2 As shown, the swing mechanism 4 includes a swing driver 41 and a mounting base 42. The swing driver 41 is mounted on the bracket 1 via the mounting base 42, and the swing arm 3 is rotatably mounted on the mounting base 42. The swing arm 3 is connected to the swing driver 41 to drive the swing arm 3 to rotate in the horizontal plane. In this embodiment, the swing driver 41 is a swing hydraulic lever.

[0039] Furthermore, such as Figures 1-3As shown, the bracket 1 has an arc-shaped mounting opening 11 with an arc of 180°. The positioning assembly includes a limiting rod 51, a limiting plate 52, a transmission screw 53, and a handwheel 54. The first end of the limiting rod 51 is slidably mounted in the arc-shaped mounting opening 11, and the second end of the limiting rod 51 is rotatably mounted on the bracket 1 via the limiting plate 52. The transmission screw 53 extends in the front-back direction and is rotatably mounted on the bracket 1, with its rotation axis oriented laterally. The handwheel 54 is mounted on one end of the transmission screw 53, and the transmission screw 53 is parallel to the limiting rod 51. The clamping arm 2 engages with the transmission screw 53, and the clamping arm 2 is slidably sleeved on the limiting rod 51. Rotating the handwheel 54 can drive the clamping arm 2 to move back and forth along the transmission screw 53. The limiting plate 52 has a positioning hole, and the bracket 1 has a corresponding insertion hole. The positioning assembly also includes a quick-connect pin 55, which can be inserted into the positioning hole and the insertion hole. Specifically, the positioning hole includes a first positioning hole and a second positioning hole, and correspondingly, the insertion hole includes a first insertion hole and a second insertion hole. The rotating limiting plate 52 can drive the limiting rod 51 to rotate in the vertical plane, thereby driving the clamping arm 2 to rotate in the vertical plane. The first end of the limiting rod 51 will slide along the arc-shaped mounting opening 11. When the first end of the limiting rod 51 slides to the end of the arc-shaped mounting opening 11, the positioning hole on the limiting plate 52 is flush with the corresponding insertion hole on the bracket 1. Positioning is achieved by inserting the quick-connect pin 55 into the positioning hole and the corresponding insertion hole. During normal use, the clamping arm 2 faces forward, the first end of the limiting rod 51 is located at the first end of the arc-shaped mounting opening 11, the first positioning hole of the limiting plate 52 is flush with the first insertion hole of the bracket 1, and the quick-connect pin 55 is inserted into the first positioning hole and the first insertion hole to achieve positioning. When attaching a large drill collar, pull out the quick-release pin 55, rotate the limiting plate 52 to rotate the limiting rod 51 in the vertical plane. The first end of the limiting rod 51 slides from the first end of the arc-shaped mounting opening 11 to the second end of the arc-shaped mounting opening 11. The clamping arm 2 faces rearward, and the second positioning hole of the limiting plate 52 is flush with the second insertion hole of the bracket 1. The quick-release pin 55 is inserted into the second positioning hole and the second insertion hole to achieve positioning. This avoids affecting the attachment operation of the large drill collar.

[0040] Furthermore, such as Figures 1-3 As shown, the positioning assembly also includes a positioning pointer 56 and a scale 57. The positioning pointer 56 is mounted on the clamping arm 2, and the scale 57 extends along the front-to-back direction and is mounted on the bracket 1. The scale 57 is located below the positioning pointer 56, with the positioning pointer 56 pointing downwards towards the scale 57. Multiple graduations on the scale 57 correspond to different types of drill bits. This facilitates accurate positioning of the clamping arm 2 when aligning different types of drill bits.

[0041] Example 2:

[0042] like Figure 4As shown, this embodiment provides a drill bit, including the drill bit coupling device in embodiment 1 and the drill bit body 6. The bracket 1 of the drill bit coupling device is installed on the drill bit body 6.

[0043] The working principle of the iron drill bit provided in this embodiment is as follows: Based on the model of the target drill bit, the position of the clamping arm 2 is adjusted forward and backward by rotating the transmission screw 53 via the handwheel 54, and the positioning pointer 56 points to the scale corresponding to the target drill bit. After the target drill bit is in place, the swing arm 3 is driven to rotate in the horizontal plane by the swing driver 41, clamping the target drill bit with the clamping arm 2. The target drill bit descends and completes the connection with the drill bit inside the wellhead. Then, the upper connection operation is completed by the iron drill bit body 6.

[0044] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A drill bit coupling device, characterized in that, It includes a bracket (1), a clamping arm (2), a swing arm (3), a swing mechanism (4), and a positioning assembly; The clamping arm (2) is movable back and forth on the positioning assembly, and the positioning assembly is rotatably mounted on the bracket (1) with its rotation axis oriented laterally; the swing mechanism (4) is mounted on the bracket (1), and the swing arm (3) is rotatably mounted on the swing mechanism (4) to drive the swing arm (3) to rotate in the horizontal plane, clamping and releasing the drill bit with the clamping arm (2); When the clamping parts of the clamping arm (2) and the swing arm (3) clamp the drill bit, they can only limit the drill bit laterally. The bracket (1) can be installed on the iron drill body (6); The bracket (1) is provided with an arc-shaped mounting port (11); The positioning assembly includes a limiting rod (51), a limiting plate (52), a transmission screw (53), and a handwheel (54); The first end of the limiting rod (51) is slidably installed in the arc-shaped mounting opening (11), and the second end of the limiting rod (51) is rotatably installed on the bracket (1) through the limiting plate (52); The transmission screw (53) extends in the front-back direction and is rotatably mounted on the bracket (1), with its rotation axis oriented laterally. The handwheel (54) is mounted on one end of the transmission screw (53), and the transmission screw (53) is parallel to the limiting rod (51). The clamping arm (2) is screwed onto the transmission screw (53), and the clamping arm (2) is slidably sleeved onto the limiting rod (51). Rotating the handwheel (54) can drive the clamping arm (2) to move back and forth along the transmission screw (53). The limiting plate (52) has a positioning hole, and the bracket (1) has a plug hole corresponding to the positioning hole; The positioning component also includes a quick-connect pin (55) which can be inserted into the positioning hole and the insertion hole; The arc of the arc-shaped mounting port (11) is 180°.

2. The drill bit coupling device as described in claim 1, characterized in that, The installation height of the clamping arm (2) is higher than the installation height of the swing arm (3).

3. The drill bit coupling device as described in claim 1, characterized in that, The positioning component also includes a positioning pointer (56) and a scale (57); The positioning pointer (56) is mounted on the clamping arm (2), and the scale (57) is mounted on the bracket (1) extending in the front-back direction, with the scale (57) located below the positioning pointer (56).

4. The drill bit coupling device as described in claim 1, characterized in that, The swing mechanism (4) includes a swing driver (41) and a mounting base (42); The swing driver (41) is mounted on the bracket (1) via the mounting base (42), the swing arm (3) is rotatably mounted on the mounting base (42), and the swing arm (3) is connected to the swing driver (41).

5. The drill bit coupling device as described in claim 1, characterized in that, An inlet (21) is installed on the clamping arm (2).

6. The drill bit coupling device as described in claim 1, characterized in that, Both the clamping arm (2) and the swing arm (3) have limiting rollers as their clamping parts.

7. A type of iron drill, characterized in that, Includes the drill bit coupling device as described in any one of claims 1-6 and the iron drill body (6), The bracket (1) is installed on the iron drill body (6).

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