Rotary drilling rig for pebble stratum

Abstract

The utility model belongs to the technical field of rotary drilling rigs, and discloses a rotary drilling rig for pebble stratums, which comprises a drilling rig carrier, the upper end of the drilling rig carrier is selectively connected with a connecting rod, the end part of the connecting rod is rotatably connected with a guide rail, one side of the upper surface of the guide rail is slidably connected with a sliding block, and the interior of the sliding block is rotatably connected with a drilling rod. The drill rod is in threaded connection with the interior of the driving machine; according to the rotary drilling rig used for the pebble stratum, the drilling rig is transported to a needed place through the drilling rig carrier, the guide rail rotates to be perpendicular to the ground after the drilling rig reaches a designated position, the guide rail rotates to be perpendicular to the ground, and the drilling rig is conveyed to the needed place through the drilling rig carrier. The drill rod is driven by the driving machine to rotate and move downwards to perform rotary excavating operation, and when encountering a pebble stratum, a drill bit can conveniently find stone gaps, so that the problems that the whole machine vibrates violently and the drill rod jumps due to non-uniform stress of a tooth tool are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary drilling rigs, in particular to a rotary drilling rig used for pebble strata. Background Art

[0002] Rotary drilling is a construction technology suitable for drilling holes in building foundation projects. It is widely used in municipal construction, highway bridges, high-rise buildings and other foundation construction projects. With different drilling tools, it is suitable for dry (short spiral), wet (rotary bucket) and rock formation (core drill) drilling operations.

[0003] For example, a rotary drilling rig with publication number CN114687663 has a fixed drill bit. Due to the uneven size, irregular shape and disorderly arrangement of particles in the pebble formation, it is difficult for the teeth to be inserted into the gaps between the stones during drilling, resulting in uneven force on the teeth, causing severe vibration of the whole machine and jumping of the drill rod. In order to solve the above problems, a rotary drilling rig for pebble formations is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary drilling rig for pebble strata in order to solve the above problems.

[0005] The technical solution adopted by the utility model is as follows: a rotary drilling rig for pebble formations, comprising:

[0006] The drilling rig carrier has a connecting rod selectively connected to its upper end, the end of the connecting rod is rotatably connected to a guide rail, a slider is slidably connected to one side of the upper surface of the guide rail, a drill rod is rotatably connected inside the slider, a driving machine is fixedly installed on the other side of the guide rail, and the drill rod is threadedly connected inside the driving machine;

[0007] The drill bit is fixedly installed on the end of the drill rod. The drill bit also includes a connecting seat. A hydraulic rod is fixedly installed in the middle of one side of the connecting seat. The upper and lower ends of one side of the connecting seat are rotatably connected to swing arms. The upper and lower ends of the output shaft of the hydraulic rod are rotatably connected to transmission rods. The two transmission rods are respectively rotatably connected to the inner and outer walls of the two swing arms.

[0008] Through the above technical solution, the drilling rig is transported to the required location by the drilling rig carrier. After arriving at the designated location, the guide rail is rotated to remain perpendicular to the ground, and the drill rod is rotated and moved downward by the driving machine to perform rotary drilling operations. When encountering a pebble formation, the two swing arms are opened and closed by extending or contracting the hydraulic rod, thereby changing the distance between the two swing arms, making it easier for the drill bit to find the gap between the stones, thereby avoiding uneven force on the teeth, causing severe vibration of the whole machine and jumping of the drill rod.

[0009] In a preferred embodiment, a plurality of external teeth are fixedly mounted on the outer walls of the two swing arms.

[0010] Through the above technical solution, the outer teeth are provided to facilitate drilling by the drill bit.

[0011] In a preferred embodiment, a clamping rod is fixedly mounted on the inner outer walls of the two swing arms, and a clamping head is fixedly mounted on the end of the clamping rod.

[0012] Through the above technical solution, when larger stones appear during the excavation process, the two swing arms are closed to clamp the large stones and remove the stones from the drill hole.

[0013] In a preferred embodiment, a supporting plate is fixedly mounted on the upper surface of the drilling rig carrier away from the connecting rod, and the lower wall of the guide rail is in contact with the upper surface of the supporting plate.

[0014] Through the above technical solution, the drill rod is supported by providing a support plate during the transportation of the drilling rig.

[0015] In a preferred embodiment, the end of the guide rail is connected to the end of the drill rod by a steel wire rope.

[0016] Through the above technical solution, when the drill bit is stuck in the borehole, the drill rod can be pulled out through the wire rope.

[0017] In a preferred embodiment, the end of the guide rail is connected to the end of the drill rod by a steel wire rope.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows: the utility model provides a rotary drilling rig for pebble formations.

[0019] The drilling rig is transported to the required location by a drilling rig carrier. After arriving at the designated location, the guide rail rotates to remain perpendicular to the ground, and the drive motor drives the drill rod to rotate and move downward to perform rotary drilling operations. When encountering pebble formations, the hydraulic rod extends or contracts to drive the two swing arms to open and close, thereby changing the distance between the two swing arms, making it easier for the drill bit to find gaps in the rocks, thereby avoiding uneven force on the teeth, which causes severe vibration of the entire machine and jumping of the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the drilling rig carrier in the utility model;

[0022] Figure 3 It is a structural schematic diagram of the drill bit in the utility model.

[0023] Markings in the figure: 1-drilling rig carrier; 2-connecting rod; 3-guide rail; 4-slider; 5-driving machine; 6-drill rod; 7-supporting plate; 8-drill bit; 9-connecting seat; 10-swing arm; 11-external teeth; 12-hydraulic rod; 13-transmission rod; 14-clamping rod; 15-chuck. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The following will be combined Figure 1-3 A rotary drilling rig for pebble formations according to an embodiment of the utility model is described in detail.

[0026] Example:

[0027] A rotary drilling rig for pebble formations, comprising:

[0028] The drilling rig carrier 1 has a connecting rod 2 selectively connected to its upper end, and the end of the connecting rod 2 is rotatably connected to a guide rail 3. A support plate 7 is fixedly installed on the upper surface of the drilling rig carrier 1 away from the connecting rod 2, and the lower wall of the guide rail 3 is in contact with the upper surface of the support plate 7. During the transportation of the drilling rig, the drill rod 6 is supported by setting the support plate 7. A slider 4 is slidably connected to one side of the upper surface of the guide rail 3, and the drill rod 6 is rotatably connected inside the slider 4. The end of the guide rail 3 and the end of the drill rod 6 are connected by a wire rope. When the drill bit 8 is stuck in the borehole, the drill rod 6 can be pulled out by the wire rope. A driving machine 5 is fixedly installed on the other side of the guide rail 3, and the drill rod 6 is threadedly connected to the inside of the driving machine 5. The drilling rig is transported to the desired location by the drilling rig carrier 1. After arriving at the designated location, the guide rail 3 rotates to remain perpendicular to the ground, and the driving machine 5 drives the drill rod 6 to rotate and move downward to perform rotary drilling operations;

[0029] The drill bit 8 is fixedly installed on the end of the drill rod 6. The drill bit 8 also includes a connecting seat 9. A hydraulic rod 12 is fixedly installed in the middle of one side of the connecting seat 9. The hydraulic rod 12 is controlled by a PLC. The upper and lower ends of one side of the connecting seat 9 are rotatably connected with swing arms 10. The outer walls of the two swing arms 10 are fixedly installed with a plurality of external teeth 11. The arrangement of the external teeth 11 facilitates the drill bit 8 to drill holes. The upper and lower ends of the output shaft of the hydraulic rod 12 are rotatably connected with transmission rods 13. The two transmission rods 13 are rotatably connected to the inner and outer walls of the two swing arms 10 respectively. When encountering a pebble formation, the two swing arms 10 are driven to open and close by extending or contracting the hydraulic rod 12, thereby changing the distance between the two swing arms, making it easier for the drill bit to find a gap between stones, thereby avoiding uneven force on the teeth, causing severe vibration of the whole machine and jumping of the drill rod.

[0030] A clamping rod 14 is fixedly installed on the inner and outer walls of the two swing arms 10, and a clamping head 15 is fixedly installed on the end of the clamping rod 14. When larger stones appear during the excavation process, the two swing arms 10 are closed to clamp the large stones and clamp the stones out of the drill hole.

[0031] Working principle:

[0032] The drilling rig is transported to the desired location via the drilling rig carrier 1. After arriving at the designated location, the guide rail 3 rotates to remain perpendicular to the ground, and the driving machine 5 drives the drill rod 6 to rotate and move downward to perform rotary drilling operations. When encountering a pebble formation, the hydraulic rod 12 extends or contracts to drive the two swing arms 10 to open and close, thereby changing the distance between the two swing arms, making it easier for the drill bit to find the gap between the stones, thereby avoiding uneven force on the teeth, causing severe vibration of the whole machine and jumping of the drill rod.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary drilling rig for pebble formations, characterized by: include: A drilling rig carrier (1) is selectively connected to a connecting rod (2) at its upper end, the end of the connecting rod (2) is rotatably connected to a guide rail (3), one side of the upper surface of the guide rail (3) is slidably connected to a slider (4), the inside of the slider (4) is rotatably connected to a drill rod (6), the other side of the guide rail (3) is fixedly mounted with a driving machine (5), and the drill rod (6) is threadedly connected to the inside of the driving machine (5); A drill bit (8) is fixedly mounted on the end of a drill rod (6), the drill bit (8) further comprising a connecting seat (9), a hydraulic rod (12) being fixedly mounted on the middle of one side of the connecting seat (9), a swing arm (10) being rotatably connected to both the upper and lower ends of one side of the connecting seat (9), a transmission rod (13) being rotatably connected to both the upper and lower ends of an output shaft of the hydraulic rod (12), and two transmission rods (13) being rotatably connected to the inner and outer walls of two swing arms (10) respectively.

2. A rotary drilling rig for pebble formations according to claim 1, characterized in that: A plurality of external teeth (11) are fixedly mounted on the outer walls of the two swing arms (10).

3. A rotary drilling rig for pebble formations according to claim 1, characterized in that: A clamping rod (14) is fixedly mounted on the inner and outer walls of the two swing arms (10), and a clamping head (15) is fixedly mounted on the end of the clamping rod (14).

4. A rotary drilling rig for pebble formations according to claim 1, characterized in that: A support plate (7) is fixedly mounted on the upper surface of the drilling rig carrier (1) at a side away from the connecting rod (2), and the lower wall of the guide rail (3) is in contact with the upper surface of the support plate (7).

5. A rotary drilling rig for pebble formations according to claim 1, characterized in that: The end of the guide rail (3) and the end of the drill rod (6) are connected via a steel wire rope.

6. A rotary drilling rig for pebble formations according to claim 1, characterized in that: The hydraulic rod (12) is controlled by PLC.

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