Drill rod connecting structure of rotary ground anchor drilling machine

Abstract

The utility model belongs to the technical field of drilling machine equipment, particularly relates to a drill rod connecting structure of a rotary ground anchor drilling machine, and aims to solve the problems that the conventional drill rod is easy to loosen and break, poor in wear resistance, lack of a torsion dispersing and enhancing mechanism, difficult to deal with complicated geology and high-strength operation challenges and the like. The drilling tool comprises a drilling rod and a driving rod, a connecting base is fixedly installed at one end of the drilling rod, a connecting pipe is fixedly installed at one end of the connecting base, a connecting sleeve is fixedly installed at one end of the driving rod, and the inner wall of the connecting sleeve is in sliding fit with the outer wall of the connecting pipe. According to the drill rod connecting structure of the rotary ground anchor drilling machine, the driving rod and the drill rod are rapidly and firmly connected through the positioning assembly, the connecting structure is stable and reliable, and the drill rod is effectively prevented from loosening and falling off; and the connecting assembly is matched with a limiting groove through a reinforcing lantern ring, the structural strength is enhanced, impact vibration can be dispersed, and the service life is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling rig equipment, in particular to a drill pipe connection structure of a rotary ground anchor drill rig. Background Art

[0002] In the fields of geological exploration, pile foundation construction, and underground engineering, as a key equipment, the performance of a rotary ground anchor drill rig directly affects the construction efficiency and safety. As an important part of the drill rig, the stability and reliability of the connection structure of the drill pipe are important prerequisites for ensuring the normal operation of the drill rig.

[0003] Traditional drill pipe connection structures mostly adopt threaded connections or pin shaft connections. Under complex geological conditions and long-term high-intensity operations, these connection methods are prone to problems such as loosening and fracture, resulting in construction interruptions or even safety accidents; specifically, although the threaded connection has a simple structure, it is prone to loosening due to wear after long-term use, affecting the tightness of the connection; while the pin shaft connection has the disadvantages of complex installation and inconvenient disassembly, and when subjected to a large torque, the pin shaft is prone to fracture, resulting in connection failure; in addition, traditional connection structures often lack effective torque dispersion and structure enhancement mechanisms, and cannot effectively resist the impact and vibration during drilling, exacerbating the loss of drill pipes and connection components.

[0004] In view of the above problems, the present utility model document proposes a drill pipe connection structure of a rotary ground anchor drill rig. Content of the Utility Model

[0005] The purpose of the present utility model is to solve the disadvantages in the prior art that the traditional drill pipe connection is prone to loosening, fracture, poor wear resistance, and lacks torque dispersion and enhancement mechanisms, and is difficult to cope with the challenges of complex geology and high-intensity operations, and to propose a drill pipe connection structure of a rotary ground anchor drill rig.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] A drill pipe connection structure of a rotary ground anchor drill rig, comprising:

[0008] A drill pipe and a driving rod, one end of the drill pipe is fixedly installed with a connection seat, one end of the connection seat is fixedly installed with a connection pipe, one end of the driving rod is fixedly installed with a connection sleeve, the inner wall of the connection sleeve is slidably matched with the outer wall of the connection pipe, and one end of the connection sleeve is closely attached to one end of the connection seat;

[0009] It further includes a positioning component, and the positioning component is used to complete the fixed connection between the connection pipe and the connection sleeve;

[0010] It further includes a connection component, and the connection component is used to assist in completing the connection drive between the drill pipe and the driving rod.

[0011] In a possible design, the positioning assembly includes a plurality of mounting holes opened on the outer wall of the connecting tube, the inner walls of the plurality of mounting holes are slidably connected with positioning rods, the outer walls of the plurality of positioning rods are sleeved with second springs, one end of the plurality of second springs is fixedly connected to the inner wall of the connecting tube, the other end of the plurality of second springs is fixedly connected to the outer wall of the positioning rod, the plurality of positioning rods are grouped in pairs and correspond to each other; the outer wall of the connecting sleeve is provided with a plurality of positioning holes, and the plurality of positioning rods are engaged with the corresponding positioning holes.

[0012] In a possible design, the connecting assembly includes a plurality of second limit grooves provided on the outer wall of the connecting sleeve and a plurality of first limit grooves provided on the outer wall of the connecting seat, the plurality of first limit grooves cooperate with the plurality of second limit grooves, the outer wall of the connecting sleeve is slidingly sleeved with a reinforcing ring, the inner wall of the reinforcing ring is fixedly installed with a plurality of bosses, the plurality of bosses are grouped in pairs, the two bosses in the same group are slidingly arranged in the same second limit groove, and the plurality of bosses are slidingly cooperated with the corresponding first limit grooves, the outer wall of the connecting sleeve is sleeved with a first spring, one end of the first spring is fixedly connected to one end of the driving rod, and the other end of the first spring is fixedly connected to the top of the reinforcing ring.

[0013] In a possible design, the reinforcing ring is tightly mounted on the connection between the connecting seat and the connecting sleeve in a static state, and is used to reinforce the end structure of the connecting sleeve, wherein the two protrusions in the same group are respectively located in the corresponding first limit groove and the second limit groove, and are used to alleviate the loss of torque to the connecting sleeve and the positioning assembly.

[0014] In a possible design, a plurality of extrusion levers are slidably penetrated through the outer wall of the reinforcing ring, and one end of the plurality of extrusion levers respectively corresponds to the corresponding positioning holes for extruding the corresponding positioning levers out of the positioning holes.

[0015] In a possible design, the plurality of positioning holes and the plurality of second limiting grooves are staggered to ensure that the positioning assembly and the connecting assembly do not affect each other, and also to ensure good structural stability of the connecting sleeve.

[0016] In this application, during use, the user only needs to insert the connecting pipe at one end of the drill pipe into the connecting sleeve. When inserting, press multiple positioning rods in sequence to ensure that the connecting pipe can be completely inserted into the connecting sleeve until multiple positioning rods are engaged with the corresponding positioning holes under the drive of the corresponding second springs. At this time, the connection between the drill pipe and the drive rod can be completed; after the connecting pipe and the connecting sleeve are fixed, the first spring will push the reinforcing collar on the outer wall of the connecting sleeve downward until it is sleeved at the junction of the connecting seat and the connecting sleeve. The reinforcing collar can strengthen the end structure of the connecting sleeve, prevent the connecting sleeve from deforming during driving, and the multiple convex columns inside the reinforcing collar can cooperate with the corresponding first limiting grooves and second limiting grooves, which can disperse the torque loss of multiple positioning rods when the drive rod drives the drill pipe to rotate, ensure the stability of the connection structure, and ensure a relatively long service life of the connection structure; when the drill pipe needs to be disassembled and separated, only need to lift the reinforcing collar upward at this time, and push the multiple positioning rods out of the positioning holes by pressing the multiple extrusion levers arranged on the reinforcing collar, and then the separation of the connecting pipe and the connecting sleeve can be quickly completed, and the operation is simple and convenient. Beneficial effects

[0017] In the present utility model, for the drill pipe connection structure of a rotary ground anchor drill, through the design of the positioning assembly, the rapid and firm fixed connection between the connecting pipe and the connecting sleeve is realized, and the engagement and cooperation between the positioning rod and the positioning hole effectively prevent the connection structure from loosening or falling off when subjected to external forces, ensuring the stability and reliability of the drill pipe connection;

[0018] In the present utility model, for the drill pipe connection structure of a rotary ground anchor drill, through the connection assembly, by using the cooperation between the reinforcing collar and the first and second limiting grooves, the smooth connection between the drill pipe and the drive rod is realized, and the reinforcing collar is tightly sleeved at the connection between the connecting seat and the connecting sleeve, which not only enhances the structural strength of the end of the connecting sleeve, but also effectively disperses the impact and vibration during drilling through the cooperation between the convex column and the limiting groove, reduces the loss of connecting components, thereby prolonging the service life of the drill pipe connection structure. At the same time, the setting of the extrusion lever makes the unlocking operation of the positioning rod simple and fast, facilitating the disassembly and maintenance of the drill pipe;

[0019] In the present utility model, the drill pipe connection structure of the rotary ground anchor drill realizes the rapid and firm connection between the drive rod and the drill pipe through the positioning assembly, and the connection structure is stable and reliable, effectively preventing the drill pipe from loosening and falling off; the connection assembly uses the cooperation between the reinforcing collar and the limiting groove to enhance the structural strength and can also disperse the impact and vibration, effectively prolonging the service life; the design of the extrusion lever simplifies the unlocking operation of the positioning rod, facilitating disassembly and maintenance. The overall structure is efficient and durable, significantly improving the construction efficiency and safety. Description of the drawings

[0020] Figure 13D structural schematic diagram of a drill pipe connection structure of a rotary ground anchor drill proposed by the present utility model;

[0021] Figure 2 Cross-sectional structural schematic diagram of a drill pipe connection structure of a rotary ground anchor drill proposed by the present utility model;

[0022] Figure 3 Split structural schematic diagram of a drill pipe connection structure of a rotary ground anchor drill proposed by the present utility model;

[0023] Figure 4 Positioning rod installation structural schematic diagram of a drill pipe connection structure of a rotary ground anchor drill proposed by the present utility model;

[0024] Figure 5 Reinforcing collar structural schematic diagram of a drill pipe connection structure of a rotary ground anchor drill proposed by the present utility model.

[0025] In the figure: 1, drill pipe; 2, drive rod; 3, reinforcing collar; 4, first spring; 5, connection seat; 6, connecting pipe; 7, connecting sleeve; 8, first limiting groove; 9, second limiting groove; 10, mounting hole; 11, positioning rod; 12, second spring; 13, positioning hole; 14, convex column; 15, extrusion lever. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Embodiment

[0027] Refer to Figures 1-5 , a drill pipe connection structure, comprising: drill pipe 1, drive rod 2, connection seat 5, connecting pipe 6, connecting sleeve 7, and a positioning assembly and a connection assembly.

[0028] First, a connection seat 5 is fixedly installed at one end of the drill pipe 1, and a connecting pipe 6 is further fixedly installed at one end of the connection seat 5. Correspondingly, a connecting sleeve 7 is fixedly installed at one end of the drive rod 2. The inner wall of the connecting sleeve 7 forms a tight sliding fit with the outer wall of the connecting pipe 6 to ensure that the two can move relative to each other in the axial direction. At the same time, one end of the connecting sleeve 7 is closely attached to one end of the connection seat 5 to improve the connection stability.

[0029] The positioning component is used to achieve the fixed connection between the connecting pipe 6 and the connecting sleeve 7. Specifically, a plurality of mounting holes 10 are formed on the outer wall of the connecting pipe 6, and a positioning rod 11 is slidably connected in each mounting hole 10. A second spring 12 is sleeved on the outer wall of each positioning rod 11. One end of the second spring 12 is fixedly connected to the inner wall of the connecting pipe 6, and the other end is fixedly connected to the outer wall of the positioning rod 11 to form an elastic support. These positioning rods 11 are grouped in pairs and correspond to each other. On the outer wall of the connecting sleeve 7, a plurality of positioning holes 13 are correspondingly formed. The positions of these positioning holes 13 match those of the positioning rods 11. When the connecting sleeve 7 and the connecting pipe 6 slide relative to each other to an appropriate position, the positioning rods 11 pop out under the action of the second spring 12 and are snapped into the positioning holes 13, thereby realizing the fixed connection between the two.

[0030] The connecting component is used to assist in completing the connection and driving between the drill pipe 1 and the driving rod 2. A plurality of second limiting grooves 9 are formed on the outer wall of the connecting sleeve 7, and a plurality of first limiting grooves 8 are formed on the outer wall of the connecting seat 5. These first limiting grooves 8 and the second limiting grooves 9 correspond to each other in position. In addition, a reinforcing collar 3 is provided. The reinforcing collar 3 is slidably sleeved on the outer wall of the connecting sleeve 7, and a plurality of convex columns 14 are fixedly installed on its inner wall. These convex columns 14 are also grouped in pairs, and each group of convex columns 14 is respectively slidably arranged in a second limiting groove 9 and also forms a sliding fit with the corresponding first limiting groove 8. To increase the connection stability, a first spring 4 is also sleeved on the outer wall of the connecting sleeve 7. One end of it is fixedly connected to one end of the driving rod 2, and the other end is fixedly connected to the top of the reinforcing collar 3;

[0031] In the static state, the reinforcing collar 3 is closely sleeved on the connection between the connecting seat 5 and the connecting sleeve 7 to strengthen the end structure of the connecting sleeve 7. At the same time, the two convex columns 14 in the same group are respectively located in the corresponding first limiting groove 8 and the second limiting groove 9. Such a design helps to alleviate the loss of the connecting sleeve 7 and the positioning component caused by the torsion generated when the drill pipe 1 and the driving rod 2 rotate.

[0032] This application can be used in the technical field of drilling rig equipment and also in other fields applicable to this application. Embodiment

[0033] Reference Figure 5 Based on Embodiment 1, an improved drill pipe connection structure for a rotary ground anchor drill is applied to the technical field of drilling rig equipment;

[0034] In addition, in order to facilitate disassembly, a plurality of extrusion levers 15 are slidably penetrated on the outer wall of the reinforcing collar 3, and one end of each extrusion lever 15 corresponds to the corresponding positioning hole 13. When disassembly is required, the extrusion lever 15 can be operated to squeeze the corresponding positioning rod 11 to make it disengage from the positioning hole 13, thereby realizing the separation of the connecting sleeve 7 and the connecting pipe 6.

[0035] The plurality of positioning holes 13 and the plurality of second limiting grooves 9 are staggered with each other, which can ensure that the positioning component and the connecting component do not affect each other, and at the same time can ensure that the structural stability of the connecting sleeve 7 is good.

[0036] The working principle and use process of the present technical solution are as follows: when in use, the user only needs to insert the connecting tube 6 at one end of the drill pipe 1 into the connecting sleeve 7. When inserting, press multiple positioning rods 11 in sequence to ensure that the connecting tube 6 can be fully inserted into the connecting sleeve 7, until multiple positioning rods 11 complete the engagement of the corresponding positioning holes 13 under the drive of the corresponding second springs 12, and then the connection between the drill pipe 1 and the driving rod 2 can be completed; when the connecting tube 6 and the connecting sleeve 7 are fixed, the first spring 4 will push the reinforcing ring 3 on the outer wall of the connecting sleeve 7 to move downward until it is sleeved at the junction of the connecting seat 5 and the connecting sleeve 7, and the reinforcing ring 3 can reinforce the end structure of the connecting sleeve 7. , which can prevent the connecting sleeve 7 from being deformed during the driving process, and the multiple protrusions 14 inside the reinforcing ring 3 can cooperate with the corresponding first limiting grooves 8 and second limiting grooves 9, so that when the driving rod 2 drives the drill rod 1 to rotate, the torque loss suffered by the multiple positioning rods 11 can be dispersed, thereby ensuring the stability of the connection structure and ensuring a long service life of the connection structure; when the drill rod 1 needs to be disassembled and separated, it is only necessary to lift the reinforcing ring 3 upwards, and push the multiple positioning rods 11 out of the positioning holes 13 by pressing the multiple extrusion levers 15 provided on the reinforcing ring 3, and then the connection pipe 6 and the connecting sleeve 7 can be quickly separated, and the operation is simple and convenient.

[0037] The above is only a specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model can make equivalent substitutions or changes based on the technical scheme and utility model concept of the utility model, which should be covered by the protection scope of the utility model.

Claims

1. A drill rod connection structure of a rotary anchor drilling rig, characterized in that: include: A drill rod (1) and a driving rod (2), wherein a connecting seat (5) is fixedly mounted on one end of the drill rod (1), a connecting pipe (6) is fixedly mounted on one end of the connecting seat (5), and a connecting sleeve (7) is fixedly mounted on one end of the driving rod (2), the inner wall of the connecting sleeve (7) is slidably matched with the outer wall of the connecting pipe (6), and one end of the connecting sleeve (7) is in close contact with one end of the connecting seat (5); It also includes a positioning assembly, which is used to complete the fixed connection between the connecting pipe (6) and the connecting sleeve (7); It also comprises a connection assembly, which is used to assist in completing the connection and driving between the drill rod (1) and the drive rod (2).

2. The drill rod connection structure of a rotary ground anchor drilling rig according to claim 1, characterized in that: The positioning assembly comprises a plurality of mounting holes (10) formed on the outer wall of the connecting tube (6); the inner walls of the plurality of mounting holes (10) are slidably connected with positioning rods (11); the outer walls of the plurality of positioning rods (11) are sleeved with second springs (12); one end of the plurality of second springs (12) is fixedly connected to the inner wall of the connecting tube (6); the other end of the plurality of second springs (12) is fixedly connected to the outer wall of the positioning rods (11); the plurality of positioning rods (11) are arranged in groups of two and correspond to each other; the outer wall of the connecting sleeve (7) is provided with a plurality of positioning holes (13); the plurality of positioning rods (11) are engaged with the corresponding positioning holes (13).

3. The drill rod connection structure of a rotary ground anchor drilling rig according to claim 1, characterized in that: The connecting assembly comprises a plurality of second limiting grooves (9) formed on the outer wall of the connecting sleeve (7) and a plurality of first limiting grooves (8) formed on the outer wall of the connecting seat (5), the plurality of first limiting grooves (8) matching with the plurality of second limiting grooves (9), the outer wall of the connecting sleeve (7) being slidably sleeved with a reinforcing collar (3), the inner wall of the reinforcing collar (3) being fixedly mounted with a plurality of bosses (14), the plurality of bosses (14) being arranged in groups of two, the two bosses (14) of the same group being slidably arranged in the same second limiting groove (9), and the plurality of bosses (14) all being slidably matched with the corresponding first limiting grooves (8), the outer wall of the connecting sleeve (7) being sleeved with a first spring (4), one end of the first spring (4) being fixedly connected with one end of the driving rod (2), and the other end of the first spring (4) being fixedly connected with the top of the reinforcing collar (3).

4. The drill rod connection structure of a rotary ground anchor drilling rig according to claim 3, characterized in that: The reinforcing collar (3) is tightly sleeved at the connection between the connecting seat (5) and the connecting sleeve (7) in a static state, and is used to reinforce the end structure of the connecting sleeve (7), wherein the two protruding columns (14) of the same group are respectively located in the corresponding first limiting groove (8) and second limiting groove (9), and are used to alleviate the loss of the connecting sleeve (7) and the positioning assembly caused by the torsional force.

5. The drill rod connection structure of a rotary ground anchor drilling rig according to claim 3, characterized in that: A plurality of extrusion levers (15) are slidably penetrated through the outer wall of the reinforcing collar (3), one end of each of the plurality of extrusion levers (15) respectively corresponding to a corresponding positioning hole (13) and used for extruding a corresponding positioning rod (11) out of the positioning hole (13).

6. The drill rod connection structure of a rotary ground anchor drilling rig according to claim 2, characterized in that: The plurality of positioning holes (13) and the plurality of second limiting grooves (9) are staggered with each other, so as to ensure that the positioning assembly and the connecting assembly do not affect each other, and also to ensure that the structural stability of the connecting sleeve (7) is good.

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