Drill rod mounting equipment for ground drilling

Abstract

The utility model discloses drill rod mounting equipment for ground drilling, and belongs to the field of ground drilling. The installation equipment can align a to-be-installed drill rod with the drill rod located at the uppermost end in a well, a fixing rod and a threaded rod are arranged at the upper end and the lower end of the drill rod correspondingly, and a threaded hole is formed in the center of the upper end of the fixing rod and can be matched with the threaded rod at the lower end of the adjacent drill rod. A mounting frame is fixedly arranged at the upper end of the bottom plate, and two clamping plates capable of synchronously and reversely sliding are arranged on the mounting frame and can clamp the fixing rod; a sliding block capable of sliding is arranged on the mounting frame, a hydraulic cylinder is fixed to the upper end of the sliding block, a driving motor is fixed to the tail end of a driving shaft of the hydraulic cylinder, a fixing frame is fixed to the tail end of a driving shaft of the driving motor, and two V-shaped clamping blocks capable of synchronously and reversely sliding are arranged on the fixing frame and can clamp a drill rod. Compared with the prior art that assembling is conducted through manual alignment, manpower and time are greatly saved.

Description

Technical Field

[0001] The utility model belongs to the field of surface drilling, and particularly relates to a drill pipe installation device for surface drilling. Background Technique

[0002] Overburden isolation grouting filling can effectively control ground settlement, thus effectively protecting ground villages; overburden isolation grouting filling requires drilling on the ground first, and then grouting into the well for compaction.

[0003] When using a drilling device for surface drilling, it is necessary to stack and install the number of drill pipes as the drilling depth increases. The drill pipes are coaxially fixed by means of threaded connection. However, each drill pipe has a relatively large length, resulting in a relatively large mass. When stacking and installing drill pipes, it is necessary to align and assemble the drill pipe to be installed with the drill pipe located in the well. If manual alignment and assembly are used, it is time-consuming and laborious. Therefore, a drill pipe installation device for surface drilling is proposed. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a drill pipe installation device for surface drilling, which solves the problems in the prior art.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] A drill pipe installation device for surface drilling can align the drill pipe to be installed with the drill pipe at the uppermost end in the well. Fixing rods and threaded rods are respectively arranged at the central positions of the upper and lower ends of the drill pipe. The cross-section of the fixing rod is square. A threaded hole is opened at the central position of the upper end of the fixing rod, and the threaded hole can cooperate with the threaded rod at the lower end of the adjacent drill pipe.

[0007] The installation device includes a bottom plate, and at least four universal wheels are arranged at the lower end of the bottom plate; an installation frame is fixedly arranged at the upper end of the bottom plate, and two clamping plates capable of sliding synchronously and reversely are arranged on the installation frame and can clamp the fixing rod.

[0008] A support plate is arranged on the installation frame, a slider capable of sliding along a direction perpendicular to the sliding direction of the clamping plate is arranged on the support plate, a hydraulic cylinder is fixed at the upper end of the slider, a driving motor is fixed at the end of the driving shaft of the hydraulic cylinder, a fixing frame is fixed at the end of the driving shaft of the driving motor, and two V-shaped clamping blocks capable of sliding synchronously and reversely are arranged on the fixing frame and can clamp the drill pipe.

[0009] Further, the diameter of the drill pipe is smaller than the side length of the square. A support block is arranged at the lower end of the side surface of each of the two clamping plates close to the fixing rod, and the two support blocks can respectively contact the lower end surface of the fixing rod.

[0010] Further, both of the clamping plates are slidably connected to the mounting frame. Two first fixing plates are provided on the mounting frame. A rotatable first lead screw is provided between the two first fixing plates. First external threads and second external threads with opposite helix directions and equal pitches are respectively provided at both ends of the first lead screw. The first external thread and the second external thread respectively penetrate through the two clamping plates and are threadedly connected thereto.

[0011] Further, the helix angles of the first external thread and the second external thread are both smaller than the equivalent friction angle.

[0012] Further, both of the V-shaped clamping blocks are slidably connected to the fixing frame. Two second fixing plates are provided on the fixing frame. A rotatable second lead screw is provided between the two second fixing plates. Third external threads and fourth external threads with opposite helix directions and equal pitches are respectively provided at both ends of the second lead screw. The third external thread and the fourth external thread respectively penetrate through the two V-shaped clamping blocks and are threadedly connected thereto.

[0013] Further, the helix angles of the third external thread and the fourth external thread are both smaller than the equivalent friction angle.

[0014] Further, a connecting plate is fixed to the lower end of the slider. The connecting plate is slidably connected to the support plate. Two third fixing plates are provided on the support plate. A rotatable third lead screw is provided between the two third fixing plates. The third lead screw penetrates through the connecting plate and is threadedly connected thereto.

[0015] Further, the helix angle of the third lead screw is smaller than the equivalent friction angle.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. By providing a clamping plate assembly at the upper end of the bottom plate to clamp and fix the uppermost drill pipe in the well, it is avoided that the drill pipe falls into the well after being separated from the power source of the drilling equipment.

[0018] 2. By providing an alignment assembly on the mounting frame, a slidable slider is provided in the alignment assembly. A hydraulic cylinder is fixed to the upper end of the slider. A drive motor is fixed to the end of the drive shaft of the hydraulic cylinder. A fixing frame is fixed to the end of the drive shaft of the drive motor. Two V-shaped clamping blocks capable of synchronously sliding in opposite directions are provided on the fixing frame, so that the drill pipe to be installed can be centered, clamped and fixed; and under the rotation adjustment of the drive motor and the sliding adjustment of the slider, the drill pipe to be installed can be coaxially aligned with the uppermost drill pipe in the well, thereby facilitating installation. Compared with the prior art in which manual alignment is used for assembly, a great deal of manpower and time are saved. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic diagram of the overall structure of the drill pipe installation device of the present invention;

[0021] Figure 2 is a schematic diagram of the drill pipe structure of the present invention;

[0022] Figure 3 is a schematic diagram of the structure of the clamping assembly of the present invention;

[0023] Figure 4 is a schematic diagram of the structure of the clamping plate of the present invention;

[0024] Figure 5 is a schematic diagram of the structure of the first lead screw of the present invention;

[0025] Figure 6 is a schematic diagram of the structure of the alignment assembly of the present invention;

[0026] Figure 7 is a schematic diagram of the structure of the second lead screw of the present invention. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] A drill pipe installation device for ground drilling is used to align the drill pipe 1 to be installed with the drill pipe 1 at the uppermost end in the well, so as to facilitate assembly; as Figure 2 shown, fixing rods 11 and threaded rods 12 are respectively arranged at the central positions of the upper and lower ends of the drill pipe 1. The cross-section of the fixing rod 11 is square, and the diameter of the drill pipe is smaller than the side length of the square; a threaded hole 111 is opened at the central position of the upper end of the fixing rod 11, and the threaded hole 111 can cooperate with the threaded rod 12 at the lower end of the adjacent drill pipe 1, so as to realize the coaxial assembly between two adjacent drill pipes 1 and increase the drilling depth.

[0029] As Figure 1As shown in the figure, a drill pipe installation device for ground drilling includes a bottom plate 1. Four universal wheels are provided at the lower end of the bottom plate 1 to facilitate the transplantation of the bottom plate 1 and even the installation device, so as to conveniently transfer the drill pipe 1 to be installed to the drilling equipment for stacking and assembly. And the universal wheels are equipped with brakes to facilitate keeping the bottom plate 1 and the installation device stationary during the assembly operation.

[0030] Of course, the number of universal wheels at the lower end of the bottom plate 1 includes but is not limited to four. In some embodiments, the number of universal wheels at the lower end of the bottom plate 1 can also be more than four.

[0031] A clamping assembly 3 is provided at the upper end of the bottom plate 1. The clamping assembly 3 is used to clamp and fix the drill pipe 1 at the uppermost end in the well to prevent it from falling into the well after being separated from the power source of the drilling equipment. As Figure 3 shown, the clamping assembly 3 includes a mounting frame 31 fixed to the upper end of the bottom plate 1. Two clamping plates 32 capable of sliding synchronously and in opposite directions are provided on the mounting frame 31. When the two clamping plates 32 approach synchronously, the fixing rod 11 can be clamped, so as to clamp and fix the drill pipe 1 at the uppermost end in the well.

[0032] As Figure 4 shown, a support block 321 is provided at the lower end of the side surface of each of the two clamping plates 32 close to the fixing rod 11. The two support blocks 321 can respectively contact the lower end surface of the fixing rod 11 (the precondition is that the diameter of the drill pipe is smaller than the side length of the square), so as to prevent the clamping plates 32 from failing to clamp the fixing rod 11 and causing it to fall into the well.

[0033] In this embodiment, both clamping plates 32 are slidably connected to the mounting frame 31. Two first fixing plates 311 are provided on the mounting frame 31. A first lead screw 33 is rotatably connected between the two first fixing plates 311. As Figure 5 shown, first external threads 331 and second external threads 332 with opposite helix directions and equal pitches are respectively provided at both ends of the first lead screw 33. The first external threads 331 and the second external threads 332 respectively penetrate through the two clamping plates 32 and are threadedly connected thereto. By providing a motor on one of the first fixing plates 311 to drive the first lead screw 33 to rotate, the two clamping plates 32 can be made to slide synchronously and in opposite directions.

[0034] Moreover, in order to ensure the stability of the clamping of the fixing rod 11 by the two clamping plates 32, the first lead screw 33 needs to have self-locking property, that is, the helix angles of the first external threads 331 and the second external threads 332 are both smaller than the equivalent friction angle.

[0035] In some embodiments, two cylinders, telescopic rods and other linear driving components can also be provided on the mounting frame 31 to directly drive the two clamping plates 32 to slide synchronously and in opposite directions.

[0036] A support plate 312 is provided on the mounting frame 31. A positioning assembly 4 is provided at the upper end of the support plate 312. The positioning assembly 4 can transfer and align the drill pipe 1 to be installed with the uppermost drill pipe 1 in the well, which is convenient for installation. Compared with the prior art where manual alignment is used for assembly, it greatly saves manpower and time.

[0037] As Figure 6 shown, the positioning assembly 4 includes a slider 41 that can slide on the upper end of the support plate 312, and the sliding direction of the slider 41 is perpendicular to the sliding direction of the clamping plate 32. A hydraulic cylinder 42 is fixed at the upper end of the slider 41. A driving motor 43 is fixed at the end of the driving shaft of the hydraulic cylinder 42. A fixing frame 44 is fixed at the end of the driving shaft of the driving motor 43. Two V-shaped clamping blocks 45 that can slide synchronously and in opposite directions are provided on the fixing frame 44, so as to be able to center and clamp the drill pipe 1 to be installed; and under the rotation adjustment of the driving motor 43 and the sliding adjustment of the slider 41, the drill pipe 1 to be installed can be coaxially aligned with the uppermost drill pipe 1 in the well.

[0038] In this embodiment, both V-shaped clamping blocks 45 are slidably connected to the fixing frame 44. Two second fixing plates 441 are provided on the fixing frame 44. A second lead screw 46 is rotatably connected between the two second fixing plates 441. As Figure 7 shown, third external threads 461 and fourth external threads 462 with opposite helix directions and equal pitches are respectively provided at both ends of the second lead screw 46. The third external thread 461 and the fourth external thread 462 respectively penetrate through the two V-shaped clamping blocks 45 and are threadedly connected thereto. By setting a motor on one of the second fixing plates 441 to drive the second lead screw 46 to rotate, the two V-shaped clamping blocks 45 can be made to slide synchronously and in opposite directions.

[0039] Moreover, in order to ensure the stability of the clamping of the drill pipe 1, the second lead screw 46 also needs to have self-locking property, that is, the helix angles of the third external thread 461 and the fourth external thread 462 are both smaller than the equivalent friction angle.

[0040] In this embodiment, a connecting plate 411 is fixed at the lower end of the slider 41. The connecting plate 411 is slidably connected to the support plate 312. Two third fixing plates 313 are provided on the support plate 312. A third lead screw 5 is rotatably connected between the two third fixing plates 313. The third lead screw 5 penetrates through the connecting plate 411 and is threadedly connected thereto. By setting a motor on one of the third fixing plates 313 to drive the third lead screw 5 to rotate, the sliding adjustment of the slider 41 can be realized; and in order to ensure the stability of the position adjustment of the slider 41, the third lead screw 5 needs to have self-locking property, that is, the helix angle of the third lead screw 5 is smaller than the equivalent friction angle.

[0041] Of course, the method of driving the slider 41 to slide and adjust includes but is not limited to structures such as the third lead screw 5 in this embodiment. In some embodiments, a telescopic rod, a cylinder and other linear driving components can also be arranged on the support plate 312 to directly drive the slider 41 to slide.

[0042] The steps in the drill pipe stacking and assembly specifically include:

[0043] S1. First, separate the drill pipe at the uppermost end in the well from the power source of the drilling equipment, and then use the clamping assembly 3 to clamp and fix the drill pipe at the uppermost end in the well to prevent it from falling into the well.

[0044] S2. Use the alignment assembly 4 to clamp the drill pipe to be installed, and by controlling the sliding of the slider 41 and the rotation of the driving motor 43, make the drill pipe to be installed coaxial with the drill pipe at the uppermost end in the well.

[0045] S3. Control the cylinder 44 to lower the drill pipe to be installed and make it contact the upper end surface of the drill pipe at the uppermost end in the well; then control to release the two V-shaped clamping blocks 45 so that the V-shaped clamping blocks 45 contact but do not clamp the drill pipe (playing a role of limiting to ensure the coaxiality of the two drill pipes).

[0046] S4. Use a wrench to tighten and fix the two drill pipes, and connect the drill pipe to be installed to the power source of the drilling equipment to realize further drilling operations.

[0047] Working principle:

[0048] By arranging the clamping plate assembly 3 on the upper end of the bottom plate 1 to clamp and fix the drill pipe at the uppermost end in the well, it is avoided that after it is separated from the power source of the drilling equipment, it falls into the well; and by arranging the alignment assembly 4 on the mounting frame 31, a slidable slider 41 is arranged in the alignment assembly 4, a hydraulic cylinder 42 is fixed at the upper end of the slider 41, a driving motor 43 is fixed at the end of the driving shaft of the hydraulic cylinder 42, a fixing frame 44 is fixed at the end of the driving shaft of the driving motor 43, and two V-shaped clamping blocks 45 that can slide synchronously and reversely are arranged on the fixing frame 44, so that the drill pipe 1 to be installed can be centered and clamped and fixed; and under the action of the rotation adjustment of the driving motor 43 and the sliding adjustment of the slider 41, the drill pipe 1 to be installed can be coaxially aligned with the drill pipe 1 at the uppermost end in the well, thus facilitating installation. Compared with the prior art where manual alignment is used for assembly, it greatly saves manpower and time.

[0049] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0050] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A drill pipe installation device for ground drilling, characterized in that, It can align the drill pipe (1) to be installed with the uppermost drill pipe (1) in the well. Fixing rods (11) and threaded rods (12) are respectively arranged at the central positions of the upper and lower ends of the drill pipe (1). The cross-section of the fixing rod (11) is square. A threaded hole (111) is opened at the central position of the upper end of the fixing rod (11), and the threaded hole (111) can cooperate with the threaded rod (12) at the lower end of the adjacent drill pipe (1). The installation device includes a bottom plate (2). At least four universal wheels are arranged at the lower end of the bottom plate (2). An installation frame (31) is fixedly arranged at the upper end of the bottom plate (2). Two clamping plates (32) that can slide synchronously and in opposite directions are arranged on the installation frame (31), and can clamp the fixing rod (11). A support plate (312) is arranged on the installation frame (31). A slider (41) that can slide along a direction perpendicular to the sliding direction of the clamping plate (32) is arranged on the support plate (312). A hydraulic cylinder (42) is fixed at the upper end of the slider (41). A drive motor (43) is fixed at the end of the drive shaft of the hydraulic cylinder (42). A fixing frame (44) is fixed at the end of the drive shaft of the drive motor (43). Two V-shaped clamping blocks (45) that can slide synchronously and in opposite directions are arranged on the fixing frame (44), and can clamp the drill pipe (1).

2. The drill pipe installation device for surface drilling according to claim 1, characterized in that, The diameter of the drill pipe is smaller than the side length of the square. A support block (321) is arranged at the lower end of the side surface of each of the two clamping plates (32) close to the fixing rod (11), and the two support blocks (321) can respectively contact the lower end surface of the fixing rod (11).

3. The drill pipe installation device for ground drilling according to claim 1, characterized in that, Both of the two clamping plates (32) are slidably connected to the installation frame (31). Two first fixing plates (311) are arranged on the installation frame (31). A first lead screw (33) that can rotate is arranged between the two first fixing plates (311). First external threads (331) and second external threads (332) with opposite helix directions and equal pitches are respectively arranged at the two ends of the first lead screw (33). The first external thread (331) and the second external thread (332) respectively penetrate through the two clamping plates (32) and are threadedly connected thereto.

4. The drill pipe installation device for surface drilling according to claim 3, characterized in that, The helix angles of the first external thread (331) and the second external thread (332) are both smaller than the equivalent friction angle.

5. The drill pipe installation device for ground drilling according to claim 1, characterized in that, Both of the two V-shaped clamping blocks (45) are slidably connected to the fixing frame (44). Two second fixing plates (441) are arranged on the fixing frame (44). A second lead screw (46) that can rotate is arranged between the two second fixing plates (441). Third external threads (461) and fourth external threads (462) with opposite helix directions and equal pitches are respectively arranged at the two ends of the second lead screw (46). The third external thread (461) and the fourth external thread (462) respectively penetrate through the two V-shaped clamping blocks (45) and are threadedly connected thereto.

6. The drill pipe installation device for surface drilling according to claim 5, characterized in that, The helix angles of the third external thread (461) and the fourth external thread (462) are both smaller than the equivalent friction angle.

7. A drill pipe installation device for surface drilling according to claim 1, characterized in that, A connecting plate (411) is fixed to the lower end of the slider (41). The connecting plate (411) is slidably connected to the support plate (312). Two third fixing plates (313) are provided on the support plate (312). A rotatable third lead screw (5) is provided between the two third fixing plates (313). The third lead screw (5) passes through the connecting plate (411) and is threadedly connected thereto.

8. The drill pipe installation device for ground drilling according to claim 7, characterized in that, The lead angle of the thread of the third lead screw (5) is less than the equivalent friction angle.

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