Drill rod guide frame assembly and rotary drilling rig with same

Abstract

The invention relates to the field of engineering machinery, in particular to a drill rod guide frame assembly and a rotary drilling rig with the same. The drill rod guide frame assembly comprises a guide frame body, a swing arm, a telescopic driving piece and a guide frame clamp, one end of the swing arm and one end of the telescopic driving piece are both connected to the guide frame body in a pivoted mode, the other end of the swing arm is fixedly connected with the guide frame clamp, and the other end of the telescopic driving piece is connected with the swing arm in a pivoted mode. When the guide frame clamp is closed, a drill rod containing hole can be defined, and when the telescopic driving piece conducts telescopic operation, the guide frame clamp can be driven to be opened or closed through the swing arm. The guide frame clamp is driven to be opened and closed through stretching and retracting of the telescopic driving part, so that closing of the guide frame clamp does not need a plug pin, and the risk of manual operation can be reduced.

Description

Technical Field

[0001] This application relates to the field of engineering machinery, and more particularly to a drill rod guide frame assembly and a rotary drilling rig having the same. Background Technology

[0002] During the operation of a rotary drilling rig, the drill rod is typically guided by a mechanical guide frame. The guide frame usually consists of two guide frame clamps that together form a drill rod receiving hole through which the drill rod can pass. The guiding action of the two guide frame clamps ensures the verticality of the drill rod during operation. The two guide frame clamps are usually fixed together by welding or pin connections, ensuring the closure of the drill rod receiving hole within the guide frame and guaranteeing the guiding effect.

[0003] However, in the method of connecting two guide frame fixtures by welding, the two guide frame fixtures are welded into one piece. If the guide frame fixture needs to be replaced, the entire set of guide frames needs to be replaced, which is costly.

[0004] Using pins to connect two guide frame clamps can lead to mud splashing into the pins due to harsh construction environments, rendering them unusable later. Furthermore, this method requires manual pinning, which can be risky as the drilling process can result in soft soil near the borehole. Summary of the Invention

[0005] In view of this, this application provides a drill rod guide frame assembly and a rotary drilling rig having the same. In the drill rod guide frame assembly, the closing of the guide frame clamp does not require the use of a pin, which can reduce the risk of manual operation.

[0006] This application provides a drill pipe guide frame assembly, including a guide frame body, a swing arm, a telescopic drive component, and a guide frame clamp. One end of the swing arm and one end of the telescopic drive component are pivotally connected to the guide frame body. The other end of the swing arm is fixedly connected to the guide frame clamp. The other end of the telescopic drive component is pivotally connected to the swing arm. When the guide frame clamp is closed, it can enclose and form a drill pipe receiving hole. When the telescopic drive component performs telescopic operation, it can drive the guide frame clamp to open or close through the swing arm.

[0007] According to one embodiment of this application, the guide frame body is provided with two first swing arm connecting parts, and a first drive connecting part is provided on the side of the first swing arm connecting part opposite to the other. The guide frame clamp is provided with a second swing arm connecting part, and a second drive connecting part is provided on one side of the swing arm. One end of the swing arm is pivotally connected to the guide frame body through the first swing arm connecting part, and the other end of the swing arm is fixedly connected to the guide frame clamp through the second swing arm connecting part. The two opposite ends of the telescopic drive member are pivotally connected to the first drive connecting part and the second drive connecting part, respectively.

[0008] According to one embodiment of this application, the first swing arm connecting part is a through hole provided on the guide frame body, the second swing arm connecting part is a pair of through holes provided on the guide frame clamp, the first drive connecting part and the second drive connecting part are respectively perforated lugs provided on the guide frame body and the swing arm, and the swing arm, the telescopic drive member and the guide frame clamp are installed to the guide frame body by pins inserted into the through holes or the perforated lugs.

[0009] According to one embodiment of this application, a limiting plate is provided on the side of the swing arm away from the telescopic drive member. The limiting plate is provided on the guide frame body and gradually moves away from the guide frame body along the axial direction of the guide frame body. A limiting member is provided on the limiting plate, and the limiting member abuts against the swing arm when the swing arm swings to its limit position.

[0010] According to one embodiment of this application, when the limiting member abuts against the swing arm, the guide frame clamp just closes.

[0011] According to one embodiment of this application, a mudguard is provided on the side of the swing arm near the telescopic drive member, and the mudguard is located outside the second drive connection portion in the height direction of the swing arm.

[0012] According to one embodiment of this application, the guide frame fixture is provided with an arcuate contact surface, and the arcuate contact surfaces of two guide frame fixtures together form the drill rod receiving hole.

[0013] According to one embodiment of this application, the guide frame body includes mutually parallel first panels and a plurality of first connecting plates located between the first panels. The first panels have a first connecting portion and a second connecting portion. The first connecting portion is located in the middle of the first panel, and the second connecting portion is located at both ends of the first connecting portion. The first connecting plates are located at the edges of the first panels and extend longitudinally or laterally along the guide frame body. The guide frame body is provided with a guide rail connecting portion at the second connecting portion. The guide rail connecting portion is located between the first panels and gradually moves away from the guide frame body along the axial direction of the guide frame body. The guide rail connecting portion is provided with a bolt. A pressure plate is fixed to one end of the bolt away from the guide frame body. The guide frame body is fixed to a rotary drilling rig by means of the pressure plate and the second connecting portion.

[0014] According to one embodiment of this application, at the first connecting portion, the transverse first connecting plate and the longitudinal first connecting plate form a first reinforcing cavity, and at the second connecting portion, the transverse first connecting plate and the longitudinal first connecting plate form a second reinforcing cavity.

[0015] This application also provides a rotary drilling rig that includes the drill rod guide frame assembly described above.

[0016] In summary, in this application, by pivotally connecting one end of the swing arm to the guide frame body and fixing the other end to the guide frame clamp, and pivotally connecting both ends of the telescopic drive to the swing arm and the guide frame body respectively, this application can drive the guide frame clamp to open and close through the telescopic drive, so that the closing of the guide frame clamp does not require the use of a pin, which can reduce the risk of manual operation. Attached Figure Description

[0017] Figure 1a and Figure 1b This is a schematic diagram of the drill pipe guide frame assembly of this application.

[0018] Figure 2 This is a top view of the main body of the guide frame in this application.

[0019] Figures 3a to 3c This is a schematic diagram of the swing arm in this application.

[0020] Figure 4a and Figure 4b This is a schematic diagram of the guide frame fixture in this application.

[0021] The explanations of the reference numerals in the accompanying drawings are as follows: Guide frame body—10; First panel—11; First connecting part—111; Second connecting part—112; Weight reduction hole—113; First swing arm connecting part—114; First drive connecting part—115; First connecting plate—12; First reinforcing cavity—13; First reinforcing plate—14; Second reinforcing cavity—16; Limiting plate—18; Limiting member through hole—181; Limiting member—182; Guide rail connecting part—19; Pressure plate—192; Swing arm—20; Second panel—21; Second connecting plate—22; Second reinforcing plate—23; Connecting pipe—24; Mudguard—25; Second drive connection part—26; Telescopic drive component—30; Guide frame fixture—40; Third panel—41; Third connecting plate—42; Arc groove—43; Second swing arm connecting part—44; Arc pad—45; Arc contact surface—451; Drill rod receiving hole—46; Detailed Implementation The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0022] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may also be used, and changes in mechanical composition, structure, electrical and operational aspects may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the terminology used herein is for describing particular embodiments only and is not intended to limit the present application.

[0023] Although the terms first, second, etc., are used in some instances to describe various elements herein, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0024] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, step, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are to be interpreted inclusively, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition occur only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0025] This application provides a drill rod guide frame assembly, which uses the arc surface of the guide frame clamp to guide the drill rod, thereby ensuring the verticality of the hole generated by the rotary drilling rig.

[0026] like Figure 1a and Figure 1b As shown, the drill rod guide frame assembly of this application includes a guide frame body 10, a swing arm 20, a telescopic drive component 30, and a guide frame clamp 40. One end of both the swing arm 20 and the telescopic drive component 30 is pivotally connected to the guide frame body 10, the other end of the swing arm 20 is fixedly connected to the guide frame clamp 40, and the other end of the telescopic drive component 30 is pivotally connected to the swing arm 20. During installation, the drill rod guide frame assembly is mounted on the lower mast of the rotary drilling rig using the guide frame body 10. Then, the telescopic drive component 30, the swing arm 20, and the guide frame clamp 40 are assembled onto the guide frame body 10 using pins, together forming the drill rod guide frame assembly. During operation, the telescopic drive component 30's telescopic movement drives the guide frame clamp 40 to close or open, positioning the drill rod within the cylindrical drill rod receiving hole formed by the guide frame clamp 40, ensuring the verticality of the drill rod during drilling operations.

[0027] Please refer to the following: Figure 2 The guide frame body 10 includes two parallel first panels 11 and a plurality of first connecting plates 12 located between the first panels 11. The first panels 11 are generally U-shaped, with rectangular first connecting portions 111 and second connecting portions 112 formed on them. The first connecting portions 111 are located in the middle of the first panels 11, and the second connecting portions 112 are located at both ends of the first connecting portions 111. The first connecting plates 12 are perpendicular to the first panels 11 and are fixed to the first panels 11 by welding, forming the skeleton of the guide frame body 10. Specifically, the first connecting plates 12 are located at the edges of the first panels 11 and extend longitudinally or laterally along the guide frame body 10. At the first connecting portion 111, the transverse first connecting plate 12 and the longitudinal first connecting plate 12 form a first reinforcing cavity 13. A first reinforcing plate 14 is provided within the first reinforcing cavity 13, dividing it into several sub-reinforcing cavities. The first panel 11 has weight-reducing holes 113 at positions corresponding to the first reinforcing cavities 13. Through the cooperation of the first reinforcing cavity 13, the first reinforcing plate 14, and the weight-reducing holes 113, the guide frame body 10 achieves a lighter weight and higher strength. At the second connecting portion 112, the longitudinal first connecting plate 12 and the transverse first connecting plate 12 form a second reinforcing cavity 16. The second reinforcing cavity 16 is used to increase the connection strength between the guide frame body 10 and the lower mast of the rotary drilling rig.

[0028] Furthermore, two first swing arm connecting portions 114 are provided on the side of the first connecting portion 111 away from the second connecting portion 112. In this embodiment, the first swing arm connecting portion 114 is a through hole provided on the guide frame body 10. The two first swing arm connecting portions 114 are symmetrically arranged with respect to the axis of the guide frame body 10. Near the axis of the guide frame body 10, at a distance equidistant from the two first swing arm connecting portions 114, a limiting plate 18 is provided extending outward along the axis of the guide frame body 10. The limiting plate 18 is provided with a limiting member through hole 181.

[0029] The second connecting portion 112 extends from both ends of the first connecting portion 111 along a direction perpendicular to the first connecting portion 111. A first driving connecting portion 115 is provided at the connection point between the second connecting portion 112 and the first connecting portion 111. In this embodiment, the first driving connecting portion 115 is a perforated lug provided on the guide frame body 10. A guide rail connecting portion 19 is provided at the end of the second connecting portion 112 away from the first connecting portion 111. The guide rail connecting portion 19 is located within the second reinforcing cavity 16 between the two first panels 11, gradually moving away from the guide frame body 10 along its axial direction. The guide rail connecting part 19 is provided with a plurality of threaded holes arranged along the height direction of the guide frame body 10. Bolts are provided in these threaded holes. A pressure plate 192 is fixed to the end of the bolt away from the guide frame body 10. Through the cooperation between the end of the second connecting part 112 and the pressure plate 192, the guide rail of the lower mast of the rotary drilling rig can be clamped between the second connecting part 112 and the pressure plate 192, and the guide frame body 10 is fixed to the guide rail of the lower mast of the rotary drilling rig.

[0030] Please refer to the following: Figures 3a to 3c The swing arm 20 includes two parallel second panels 21 and a plurality of second connecting plates 22 located between the second panels 21. The second connecting plates 22 are disposed between two opposite sides of the second panels 21, perpendicular to the second panels 21 and extending along the length direction of the second panels 21. A second reinforcing plate 23 perpendicular to the second connecting plates 22 and the second panels 21 is provided between the two second connecting plates 22. Further, two connecting pipes 24 are provided at both ends of the second connecting plates 22, and connecting holes passing through the second panels 21 and the connecting pipes 24 are provided at both ends of the swing arm 20. Two mudguards 25 are provided on one side of the swing arm 20 in the width direction, arranged along the height direction of the swing arm 20. The two mudguards 25 extend from one end of the swing arm 20 in the length direction to the middle of the swing arm 20. Two parallel second drive connecting portions 26 are provided between the two mudguards 25. In this embodiment, the second drive connecting portions 26 are perforated lugs. In the height direction of the swing arm 20, two mudguards 25 are located on the outside of the second drive connection 26 to protect the pins inserted in the second drive connection 26 and prevent mud from splashing into the pins.

[0031] Please refer to the following: Figure 4a and Figure 4b The guide frame clamp 40 includes two parallel third panels 41 and third connecting plates 42 located at one end and both sides of the third panels 41. The third panel 41 is generally U-shaped, with an arc groove 43, preferably a semi-circular groove, at one end and a second swing arm connecting part 44 at the other end. In this embodiment, the second swing arm connecting part 44 is a pair of through holes arranged along the width direction of the guide frame clamp 40. An arc pad 45 is provided at the arc groove 43 of the guide frame clamp 40. The arc pad 45 connects the two third panels 41 in the height direction of the guide frame clamp 40, increasing the structural strength at the arc groove 43. An arc contact surface 451 is formed at the arc pad 45. When the guide frame clamp 40 is closed, the two arc contact surfaces 451 surround to form a drill rod receiving hole 46. During drilling, the arc contact surface 451 contacts the drill rod to ensure the perpendicularity of the drill rod. When installing the swing arm 20, a pin is used to pass through the first swing arm connection 114 between the swing arm 20 and the guide frame body 10 to achieve a pivotal connection between the swing arm 20 and the guide frame body 10. A pin is used to pass through the second swing arm connection 44 between the swing arm 20 and the guide frame clamp 40 to achieve a fixed connection between the swing arm 20 and the guide frame clamp 40.

[0032] In this application, one end of the telescopic drive component 30 is connected to the first drive connection part 115 on the guide frame body 10 via a pin, and the other end of the telescopic drive component 30 is connected to the second drive connection part 26 on the swing arm 20 via a pin. This allows the telescopic drive component 30 to rotate relative to the guide frame body 10 and the swing arm 20 as it extends and retracts, thereby driving the swing arm 20 to rotate relative to the guide frame body 10, thus opening and closing the guide frame clamp 40. In this embodiment, the telescopic drive component 30 is a common hydraulic cylinder. To ensure the uniformity of movement of the two guide frame clamps 40, a synchronization valve is provided in the hydraulic circuit of the rotary drilling rig to simultaneously control the extension and retraction of the two hydraulic cylinders connected to the two swing arms 20, so that the two guide frame clamps 40 connected to the two swing arms 20 can move synchronously. This avoids the problem of inconsistent contact points with the drill rod caused by inconsistent movement of the guide frame clamps 40, which would result in the drill rod receiving hole 46 formed by the two guide frame clamps 40 not being a standard cylinder, leading to non-standard drilling verticality and skewing. Furthermore, the synchronous valve design avoids the need for manual calibration of the guide frame clamp 40's closure, thus improving construction efficiency.

[0033] In addition, a limiting element 182 (such as a bolt or pin) is inserted into the limiting element through hole 181 on the guide frame body 10. By adjusting the extension length of the limiting element 182 on the limiting plate 18, the movement range of the swing arm 20 can be limited, and the movement limits of the two swing arms 20 can be kept consistent, avoiding collision between the two guide frame clamps 40 due to the continuous advancement of the telescopic drive 30. In this way, a dual protection mechanism of hydraulic and mechanical limiting can be formed to prevent collision of the guide frame clamps 40. It is understood that in other embodiments of this application, the limiting plate 18 and the limiting element 182 may not be provided. In this case, the telescopic drive 30 may also be a servo electric cylinder, which ensures the movement accuracy of the guide frame clamps 40. Of course, when the telescopic drive 30 is a servo electric cylinder, the limiting plate 18 and the limiting element 182 may also be provided to use dual protection to prevent collision of the guide frame clamps 40.

[0034] The connection and operation steps for this application are as follows: The guide frame body 10 is fixed to the lower mast guide rail of the rotary drilling rig by pressure plate 192 and bolts; The guide frame body 10, swing arm 20, telescopic drive component 30 and guide frame clamp 40 are assembled together by pins. The telescopic drive component 30 is retracted, causing the swing arm 20 to drive the guide frame clamp 40 to open; Install a limiting member 182 on the limiting plate 18 of the guide frame body 10, adjust the length of the limiting member 182 extending out of the limiting plate 18 so that when the swing arm 20 moves to the limit position, the two semi-circular grooves of the guide frame clamp 40 are just closed. Before construction, control the telescopic drive component 30 to retract, so that the guide frame clamp 40 opens and the drill rod enters the drill rod receiving hole 46 enclosed by the guide frame clamp 40. Control the rotary drilling rig to start normal drilling, and ensure that the telescopic drive 30 is in the extended state and pressure is maintained at the current position, so that the guide frame clamp 40 does not operate when the rotary drilling rig is in the working state. After drilling is completed, lift the drill rod and open the guide frame clamp 40 to allow the drill rod to disengage from the guide frame clamp 40.

[0035] In summary, the drill pipe guide frame assembly of this application and the rotary drilling rig having the same have at least one of the following advantages: Reduced manual intervention: This application uses the telescopic drive component 30 to control the opening and closing of the guide frame clamp 40, so that the closing of the guide frame clamp 40 does not require the use of pins and bolts, which has a high degree of automation and reduces the labor intensity of workers.

[0036] Stable performance: Since there is no need to use pins, it can avoid the inability to use the pins later due to mud splashing into the closed position, thus improving system stability.

[0037] High safety: This application uses the telescopic drive component 30 to control the opening and closing of the guide frame clamp 40, eliminating the need for manual pin insertion and avoiding safety hazards caused by approaching dangerous areas when manually inserting pins.

[0038] Easy to install and disassemble: The drill pipe guide frame assembly of this application can be assembled using pins, making installation and disassembly convenient and efficient.

[0039] High compatibility: The guide frame body 10 and the guide rail of the lower mast adopt a standardized interface, which can be adapted to different models of rotary drilling rigs; Low replacement cost: When adapting to different models of rotary drilling rigs, if the guide frame clamp 40 needs to be replaced due to the different distance between the drill rod and the vehicle body, only the swing arm 20 of different length needs to be replaced, resulting in low replacement cost.

[0040] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A drill pipe guide frame assembly, characterized in that: It includes a guide frame body (10), a swing arm (20), a telescopic drive (30), and a guide frame clamp (40). One end of the swing arm (20) and the telescopic drive (30) are pivotally connected to the guide frame body (10). The other end of the swing arm (20) is fixedly connected to the guide frame clamp (40). The other end of the telescopic drive (30) is pivotally connected to the swing arm (20). When the guide frame clamp (40) is closed, it can enclose and form a drill rod receiving hole (46). When the telescopic drive (30) performs telescopic operation, it can drive the guide frame clamp (40) to open or close through the swing arm (20).

2. The drill pipe guide frame assembly as described in claim 1, characterized in that: The guide frame body (10) is provided with two first swing arm connecting parts (114). The side of the first swing arm connecting part (114) facing away from the other is provided with a first drive connecting part (115). The guide frame clamp (40) is provided with a second swing arm connecting part (44). The side of the swing arm (20) is provided with a second drive connecting part (26). One end of the swing arm (20) is pivotally connected to the guide frame body (10) through the first swing arm connecting part (114). The other end of the swing arm (20) is fixedly connected to the guide frame clamp (40) through the second swing arm connecting part (44). The two opposite ends of the telescopic drive member (30) are pivotally connected to the first drive connecting part (115) and the second drive connecting part (26) respectively.

3. The drill pipe guide frame assembly as described in claim 2, characterized in that: The first swing arm connecting part (114) is a through hole provided on the guide frame body (10), the second swing arm connecting part (44) is a pair of through holes provided on the guide frame clamp (40), the first drive connecting part (115) and the second drive connecting part (26) are respectively perforated lugs provided on the guide frame body (10) and the swing arm (20), the swing arm (20), the telescopic drive member (30) and the guide frame clamp (40) are installed to the guide frame body (10) by pins inserted into the through holes or the perforated lugs.

4. The drill pipe guide frame assembly as described in claim 2, characterized in that: A limiting plate (18) is provided on the side of the swing arm (20) away from the telescopic drive member (30). The limiting plate (18) is provided on the guide frame body (10) and gradually moves away from the guide frame body (10) along the axial direction of the guide frame body (10). A limiting member (181) is provided on the limiting plate (18). The limiting member (181) abuts against the swing arm (20) when the swing arm (20) swings to the limit position.

5. The drill pipe guide frame assembly as described in claim 4, characterized in that: When the limiting member (181) abuts against the swing arm (20), the guide frame clamp (40) closes.

6. The drill pipe guide frame assembly as described in claim 2, characterized in that: A mudguard (25) is provided on the side of the swing arm (20) near the telescopic drive member (30), and the mudguard (25) is located outside the second drive connection part (26) in the height direction of the swing arm (20).

7. The drill pipe guide frame assembly as described in claim 1, characterized in that: The guide frame clamp (40) is provided with an arc contact surface (451), and the arc contact surfaces (451) of the two guide frame clamps (40) together form the drill rod receiving hole (46).

8. The drill pipe guide frame assembly as described in claim 1, characterized in that: The guide frame body (10) includes parallel first panels (11) and a plurality of first connecting plates (12) located between the first panels (11). The first panels (11) have a first connecting portion (111) and a second connecting portion (112). The first connecting portion (111) is located in the middle of the first panel (11), and the second connecting portion (112) is located at both ends of the first connecting portion (111). The first connecting plates (12) are located at the edges of the first panels (11) along the longitudinal or transverse direction of the guide frame body (10). Furthermore, the guide frame body (10) is provided with a guide rail connection part (19) at the second connection part (112). The guide rail connection part (19) is located between the first panel (11) and gradually moves away from the guide frame body (10) along the axial direction of the guide frame body (10). The guide rail connection part (19) is provided with a bolt. A pressure plate (192) is fixed to one end of the bolt away from the guide frame body (10). The guide frame body (10) is fixed to the rotary drilling rig by means of the pressure plate (192) and the second connection part (112).

9. The drill pipe guide frame assembly as described in claim 8, characterized in that: At the first connecting part (111), the transverse first connecting plate (12) and the longitudinal first connecting plate (12) form a first reinforcing cavity (13), and at the second connecting part (112), the transverse first connecting plate (12) and the longitudinal first connecting plate (12) form a second reinforcing cavity (16).

10. A rotary drilling rig, characterized in that, It includes the drill pipe guide assembly as described in any one of claims 1-9.

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