A highway base drilling machine

Abstract

The utility model discloses a highway base drilling machine, including the mounting bracket, is equipped with the adjusting device on the mounting bracket, and the mounting bracket one side is equipped with the drill rod, is connected with the connecting device on the drill rod, and the connecting device includes the spigot, the limiting ball, the splicing mechanism, the rotary stand, the cooperation cover, the cooperation pole, the spiral groove and the connecting sleeve, and the spigot is installed in the connecting sleeve, and the limiting ball is installed in the spiral groove, and the rotary stand sets up in the cooperation cover outside, and the cooperation pole is installed in the cooperation cover outside, and the spiral groove is set up in the connecting sleeve outside, and the anti overload mechanism is connected with below spigot, and the anti overload mechanism includes the connecting rod, the installation slot, the spring, the clamping block and the clamping groove, and the connecting rod is installed below spigot, and the clamping groove is set up in the connecting rod side wall, and the installation slot is set up in the connecting sleeve inboard, and the spring is installed in the installation slot, and the clamping block one side is connected with the spring, and the clamping block other side is engaged in the clamping groove, the utility model improves the operation flexibility of highway base drilling machine, has reduced the construction risk, has improved the construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of road base drilling technology, and more specifically, it relates to a road base drilling machine. Background Technology

[0002] In the existing technology, there are some problems with the operation of road base drilling machines, especially in terms of drill rod angle adjustment, drill rod connection method and drill rod breakage prevention.

[0003] First, existing roadbed drilling machines typically have a simple structure, and the angle of the drill rod usually cannot be changed. This design cannot guarantee the verticality of the drill rod when encountering sloping road surfaces, resulting in inaccurate drilling and affecting construction quality. In addition, the inability to adjust the drill rod angle also limits the applicability of the drilling machine, making its construction efficiency low in complex terrain.

[0004] Secondly, the existing technology for connecting drill pipes is relatively simple, usually using bolts or similar methods. This method requires specialized tools and the disassembly and assembly process is complex, making it impossible to quickly replace drill pipes. This inconvenience may affect construction efficiency, increase downtime, and thus have adverse effects.

[0005] In addition, in existing technologies, drill pipes may break when the rotation speed is too high or when they encounter obstacles. The structure of the drill pipe connection part in existing technologies is usually relatively simple, which cannot effectively prevent the drill pipe from breaking. Such breakage can not only damage the equipment, but also cause safety accidents, which can have serious adverse effects on construction. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides a road base drilling machine to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a road base drilling machine, comprising a fixed frame, an adjusting device mounted on the fixed frame, a drill rod on one side of the fixed frame, and a connecting device connected to the drill rod. The connecting device includes a plug rod, a limiting ball, a plugging mechanism, a rotating frame, a mating sleeve, a mating rod, a spiral groove, and a connecting sleeve. The plug rod is detachably installed in the connecting sleeve. The limiting ball is fixedly disposed inside the mating sleeve and slidably installed in the spiral groove. The rotating frame is disposed outside the mating sleeve, and the mating sleeve is slidably connected to the rotating frame. The mating rod is movably installed outside the mating sleeve. The spiral groove is opened outside the connecting sleeve. An overload protection mechanism is connected below the plug rod. The overload protection mechanism includes a connecting rod, a mounting groove, a spring, a locking block, and a locking slot. The connecting rod is movably installed below the plug rod. The locking slot is opened on the side wall of the connecting rod. The mounting groove is opened inside the connecting sleeve. The spring is movably installed in the mounting groove. One side of the locking block is connected to the spring, and the other side of the locking block is engaged in the locking slot.

[0010] The present invention is further configured such that a drive assembly is provided below the fixed frame, and the output end of the drive assembly is connected to the connecting sleeve.

[0011] The present invention is further configured such that a spiral plate is provided on the outer side of the drill rod, and the spiral plate is fixedly connected to the outer side of the drill rod.

[0012] The present invention is further configured such that the insertion mechanism includes an insertion frame and an insertion slot, the insertion slot is formed on the side wall of the insertion rod, one end of the insertion frame is inserted into the insertion slot, and both ends of the insertion rod are fixedly connected to the mating rod.

[0013] The present invention is further configured such that a tension spring is provided on the inner side of the plug-in bracket, and the other end of the tension spring is connected to the outer side of the connecting sleeve.

[0014] The present invention is further configured such that a push spring is provided on the inner side of the rotating frame, and the two ends of the push spring are respectively connected to two mating sleeves.

[0015] The present invention is further configured such that a sliding groove is provided on the outer side of the plug rod, and a slider is provided on the inner side of the connecting sleeve, the slider being adapted to the sliding groove.

[0016] The present invention is further configured such that the adjusting device includes a connecting seat, a hydraulic cylinder, a hydraulic rod, and a movable frame. The movable frame is movably mounted on one side of the fixed frame, the connecting seat is fixedly connected to the other side of the fixed frame, the hydraulic cylinder is movably connected to the connecting seat, one end of the hydraulic rod is connected to the output end of the hydraulic cylinder, and the other end of the hydraulic rod is movably connected to the movable frame. The setting of the adjusting device expands the applicability of the equipment.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a road base drilling machine, which has the following beneficial effects:

[0019] 1. The adjustment device, through the combination of connecting seat, hydraulic cylinder, hydraulic rod and movable frame, realizes the adjustment of drill rod angle. The hydraulic cylinder drives the hydraulic rod to move the movable frame and drive assembly, thereby changing the angle of drill rod. This design can adjust the drill rod angle according to the road slope or other construction requirements, ensuring the accuracy and verticality of drilling, and solving the problem of not being able to adjust the drill rod angle in the existing technology.

[0020] 2. The connection device, through the combination of a plug rod, a limit ball, a plug mechanism, a rotating frame, a mating sleeve, a mating rod, a spiral groove, and a connecting sleeve, enables the rapid connection and replacement of drill pipes. The rotation of the rotating frame and the spiral descent design of the mating sleeve allow for quick disassembly and installation of drill pipes, simplifying the maintenance process and improving construction efficiency.

[0021] 3. The overload protection mechanism protects the drill rod through a combination of connecting rod, mounting groove, spring, locking block and locking groove. When the drill rod rotates too fast or encounters an obstacle, the overload protection mechanism can prevent the drill rod from breaking, ensuring equipment safety and smooth construction. This design solves the problem that the existing technology has a simple structure of drill rod connection part, which cannot effectively prevent drill rod breakage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a roadbed drilling machine according to the present invention;

[0023] Figure 2 This is a schematic diagram of the connecting device in this utility model;

[0024] Figure 3 This is a cross-sectional structural diagram of the connecting device and the overload prevention mechanism in this utility model;

[0025] Figure 4 This is a cross-sectional structural diagram of the overload prevention mechanism in this utility model;

[0026] Figure 5 This is a cross-sectional structural diagram of the connecting device part in this utility model.

[0027] In the diagram: 1. Fixed frame; 2. Drill rod; 3. Insertion rod; 4. Limit ball; 5. Rotating frame; 6. Mating sleeve; 7. Mating rod; 8. Spiral groove; 9. Connecting sleeve; 10. Connecting rod; 11. Mounting groove; 12. Spring; 13. Locking block; 14. Locking slot; 15. Drive assembly; 16. Spiral plate; 17. Insertion frame; 18. Insertion groove; 19. Tension spring; 20. Push spring; 21. Slide groove; 22. Slider; 23. Connecting seat; 24. Hydraulic cylinder; 25. Hydraulic rod; 26. Movable frame. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figure 1-5 A road base drilling machine includes a fixed frame 1 with an adjustment device installed on it. A drill rod 2 is provided on one side of the fixed frame 1, and a connecting device is connected to the drill rod 2. The connecting device includes a plug rod 3, a limiting ball 4, a plugging mechanism, a rotating frame 5, a mating sleeve 6, a mating rod 7, a spiral groove 8, and a connecting sleeve 9. The plug rod 3 is detachably installed in the connecting sleeve 9. The limiting ball 4 is fixedly installed inside the mating sleeve 6 and slidably installed in the spiral groove 8. The rotating frame 5 is located outside the mating sleeve 6, and the mating sleeve 6 slides with the rotating frame 5. The connecting rod 7 is movably installed on the outside of the connecting sleeve 6. The spiral groove 8 is opened on the outside of the connecting sleeve 9. An overload protection mechanism is connected below the plug rod 3. The overload protection mechanism includes a connecting rod 10, a mounting groove 11, a spring 12, a locking block 13, and a locking groove 14. The connecting rod 10 is movably installed below the plug rod 3. The locking groove 14 is opened on the side wall of the connecting rod 10. The mounting groove 11 is opened on the inside of the connecting sleeve 9. The spring 12 is movably installed in the mounting groove 11. One side of the locking block 13 is connected to the spring 12, and the other side of the locking block 13 is engaged in the locking groove 14.

[0032] A drive assembly 15 is located below the mounting bracket 1, and the output end of the drive assembly 15 is connected to the connecting sleeve 9.

[0033] A spiral plate 16 is provided on the outside of the drill rod 2, and the spiral plate 16 is fixedly connected to the outside of the drill rod 2.

[0034] The insertion mechanism includes an insertion frame 17 and an insertion slot 18. The insertion slot 18 is formed on the side wall of the insertion rod 3. One end of the insertion frame 17 is inserted into the insertion slot 18, and both ends of the insertion rod 3 are fixedly connected to the mating rod 7.

[0035] A tension spring 19 is provided on the inner side of the plug-in bracket 17, and the other end of the tension spring 19 is connected to the outer side of the connecting sleeve 9.

[0036] The inner side of the rotating frame 5 is provided with a push spring 20, and the two ends of the push spring 20 are respectively connected to two mating sleeves 6.

[0037] The outer side of the plug rod 3 is provided with a sliding groove 21, and the inner side of the connecting sleeve 9 is provided with a slider 22, which is adapted to the sliding groove 21.

[0038] In this embodiment, when the device is needed, it is first moved to a suitable position via an external device connected to the fixed frame 1. Then, the fixed frame 1 is lowered as a whole via an external lifting device. Simultaneously, the drive assembly 15 is activated, which drives the drill rod 2 and the spiral plate 16 to rotate. The drill rod 2 then drills holes in the roadbed. Due to its special structural design, the spiral plate 16 can remove soil. When the drill rod 2 rotates too fast or encounters an obstacle and cannot rotate, the side wall of the slot 14 will... Pressing the locking block 13 will cause it to gradually disengage from the slot 14, simultaneously pressing the spring 12 connected to one side. The locking block 13 will then cause the spring 12 to retract into the mounting groove 11 and press against the side wall of the connecting rod 10. The insertion rod 3 will then continue to rotate with the connecting sleeve 9 due to the arrangement of the slider 22 and the groove 21. Meanwhile, the connecting rod 10 will rotate freely due to the obstruction encountered by the drill rod 2. At this point, the drive assembly 15 can be turned off, and the drill rod 2 can be lifted out of the drilled hole. Then, the rotary knob can be rotated... The rotating frame 5 drives the two mating sleeves 6 to rotate. Then, the rotating frame 5 drives the inner limiting ball 4 to slide along the spiral groove 8. Due to the special structural design of the spiral groove 8, the mating sleeve 6 spirals down along the spiral groove 8. Then, the mating sleeve 6 slides along the slide rod set on the inner side of the rotating frame 5 and compresses the push spring 20. At the same time, due to the special chamfer design on one side of the mating sleeve 6, the mating sleeve 6 gradually pushes open the mating rod 7. Then, the mating rod 7 drives the plug-in frame 17 to move outward. Then, one end of the connector 17 will gradually detach from the connector slot 18. At the same time, the connector 17 will drive the inner tension spring 19 to stretch. When the rotating frame 5 can no longer rotate, one end of the connector 17 will completely detach from the connector slot 18. Then, pull the drill rod 2 outward to remove the drill rod 2, connecting rod 10 and connector 3 together from the connecting sleeve 9. Then, according to the site conditions, select a suitable drill rod 2 and install it under the connecting sleeve 9 according to the above steps before continuing the drilling work.

[0039] Please see Figure 1 As one embodiment of the adjustment device: the adjustment device includes a connecting seat 23, a hydraulic cylinder 24, a hydraulic rod 25 and a movable frame 26. The movable frame 26 is movably installed on one side of the fixed frame 1, the connecting seat 23 is fixedly connected to the other side of the fixed frame 1, the hydraulic cylinder 24 is movably connected to the connecting seat 23, one end of the hydraulic rod 25 is connected to the output end of the hydraulic cylinder 24, and the other end of the hydraulic rod 25 is movably connected to the movable frame 26.

[0040] More specifically, when it is necessary to adjust the angle of drill rod 2, hydraulic cylinder 24 is opened, and hydraulic cylinder 24 pushes hydraulic rod 25 connected to the output end to move. Since hydraulic cylinder 24 is movably connected to connecting seat 23, hydraulic rod 25 is movably connected to movable frame 26, and movable frame 26 is movably connected to fixed frame 1, the angles of hydraulic cylinder 24, hydraulic rod 25 and movable frame 26 will change. Then, movable frame 26 will drive drive assembly 15 and drill rod 2 to change the angle. After adjusting to the appropriate angle, hydraulic cylinder 24 can be closed.

[0041] In summary, during the use or operation of the overall equipment: When the equipment needs to be used, firstly, the device is moved to a suitable position via an external device connected to the fixed frame 1. Then, the external lifting device lowers the fixed frame 1 as a whole. Simultaneously, the drive assembly 15 is activated, which drives the drill rod 2 and the spiral plate 16 to rotate. The drill rod 2 then drills holes in the roadbed. Due to its special structural design, the spiral plate 16 can remove soil. When the drill rod 2 rotates too fast or encounters an obstacle and cannot rotate, it jams. The side wall of groove 14 will press against the locking block 13, and then the locking block 13 will gradually disengage from the groove 14. At the same time, it will press against the spring 12 connected on one side. Then, the locking block 13 will drive the spring 12 to retract into the mounting groove 11 and abut against the side wall of the connecting rod 10. Then, the insertion rod 3 will continue to rotate with the connecting sleeve 9 due to the setting of the slider 22 and the sliding groove 21. The connecting rod 10 will cause the insertion rod 3 to spin freely due to the obstruction of the drill rod 2. At this time, the drive assembly 15 can be turned off, and the drill rod 2 can be raised out of the drilled hole. Rotating the rotating frame 5 causes the two mating sleeves 6 to rotate. The rotating frame 5 then causes the inner limiting ball 4 to slide along the spiral groove 8. Due to the special structural design of the spiral groove 8, the mating sleeve 6 spirals downwards along the groove. The mating sleeve 6 then slides along the sliding rod inside the rotating frame 5 and compresses the push spring 20. Simultaneously, due to the special chamfer design on one side of the mating sleeve 6, it gradually pushes open the mating rod 7. The mating rod 7 then drives the insertion frame 17 outwards. Move the connector 17, and one end of the connector 17 will gradually detach from the connector slot 18. At the same time, the connector 17 will drive the inner tension spring 19 to stretch. When the rotating frame 5 can no longer rotate, one end of the connector 17 will completely detach from the connector slot 18. Then, pull the drill rod 2 outward to remove the drill rod 2, connecting rod 10, and connector 3 from the connecting sleeve 9. Then, according to the site conditions, select a suitable drill rod 2 and install it under the connecting sleeve 9 according to the above steps before continuing the drilling work.

[0042] When it is necessary to adjust the angle of drill rod 2, open hydraulic cylinder 24. Hydraulic cylinder 24 pushes hydraulic rod 25 connected to the output end to move. Since hydraulic cylinder 24 is movably connected to connecting seat 23, hydraulic rod 25 is movably connected to movable frame 26, and movable frame 26 is movably connected to fixed frame 1, the angles of hydraulic cylinder 24, hydraulic rod 25 and movable frame 26 will change. Then, movable frame 26 will drive drive assembly 15 and drill rod 2 to change the angle. After adjusting to the appropriate angle, close hydraulic cylinder 24.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A road base drilling machine, comprising a fixed frame (1), characterized in that: An adjustment device is installed on the fixed frame (1). A drill rod (2) is provided on one side of the fixed frame (1). A connecting device is connected to the drill rod (2). The connecting device includes a plug rod (3), a limiting ball (4), a plugging mechanism, a rotating frame (5), a mating sleeve (6), a mating rod (7), a spiral groove (8), and a connecting sleeve (9). The plug rod (3) is installed in the connecting sleeve (9), the limiting ball (4) is installed in the spiral groove (8), the rotating frame (5) is located outside the mating sleeve (6), the mating rod (7) is installed outside the mating sleeve (6), and the spiral groove (8) An overload protection mechanism is connected below the plug rod (3) and is located on the outside of the connecting sleeve (9). The overload protection mechanism includes a connecting rod (10), a mounting groove (11), a spring (12), a locking block (13), and a locking groove (14). The connecting rod (10) is installed below the plug rod (3). The locking groove (14) is located on the side wall of the connecting rod (10). The mounting groove (11) is located inside the connecting sleeve (9). The spring (12) is installed in the mounting groove (11). One side of the locking block (13) is connected to the spring (12), and the other side of the locking block (13) is engaged in the locking groove (14).

2. A road base drilling machine according to claim 1, characterized in that: The fixed frame (1) is provided with a drive assembly (15) below it, and the output end of the drive assembly (15) is connected to the connecting sleeve (9).

3. A highway base drilling machine according to claim 2, characterised in that: The drill rod (2) is provided with a spiral plate (16) on the outside, and the spiral plate (16) is fixedly connected to the outside of the drill rod (2).

4. The highway base drilling machine according to claim 1, wherein: The insertion mechanism includes an insertion frame (17) and an insertion slot (18). The insertion slot (18) is opened on the side wall of the insertion rod (3). One end of the insertion frame (17) is inserted into the insertion slot (18). Both ends of the insertion rod (3) are fixedly connected to the mating rod (7).

5. A road base drilling machine according to claim 4, characterized in that: The inner side of the plug-in bracket (17) is provided with a tension spring (19), and the other end of the tension spring (19) is connected to the outer side of the connecting sleeve (9).

6. A highway base drilling machine according to claim 5, characterised in that: The rotating frame (5) is provided with a push spring (20) on its inner side, and the two ends of the push spring (20) are respectively connected to two mating sleeves (6).

7. A road base drilling machine according to claim 6, characterized in that: The plug rod (3) has a groove (21) on its outer side, and the connecting sleeve (9) has a slider (22) on its inner side. The slider (22) is adapted to the groove (21).

8. A road base drilling machine according to any one of claims 1-7, characterized in that: The adjustment device includes a connecting seat (23), a hydraulic cylinder (24), a hydraulic rod (25), and a movable frame (26). The movable frame (26) is movably mounted on one side of the fixed frame (1). The connecting seat (23) is fixedly connected to the other side of the fixed frame (1). The hydraulic cylinder (24) is movably connected to the connecting seat (23). One end of the hydraulic rod (25) is connected to the output end of the hydraulic cylinder (24), and the other end of the hydraulic rod (25) is movably connected to the movable frame (26).

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