Main shaft rotary hydraulic propulsion drilling rig

Abstract

This utility model belongs to the field of mining equipment, and particularly relates to a rotary hydraulic propulsion drilling rig. It includes a frame and a power head mounted on the frame. The power head is slidably mounted on the frame. An upper rod mechanism is also mounted on the frame, extending from one side of the frame to the bottom. The upper rod mechanism includes spaced-apart fixed plates and drive shafts at both ends of the fixed plates. The drive shafts are rotatably mounted on the fixed plates, and drive gears are fitted at both ends of the drive shafts. This utility model, by installing an upper rod mechanism on one side of an existing frame, utilizes the scraper chain of the upper rod mechanism to support and transport the drill rod. A lifting mechanism located between the drive shafts is used to push the drill rod. Furthermore, through cooperation with the fixed mechanism, the drill rod is fixed. Finally, the automatic rotation of the power head spindle achieves automatic connection with the drill rod, completing the automatic feeding of the drill rod.

Description

Technical Field

[0001] This utility model belongs to the field of mining equipment, and in particular relates to a spindle-rotating hydraulic propulsion drilling rig. Background Technology

[0002] A drilling rig is a mechanical device used in exploration or mineral resource development to drive drilling tools into the ground to obtain physical geological data. The drilling rig generates power through a power system, which is transmitted and distributed through a transmission system to drive the rotation system to rotate the drill rod and drill bit. At the same time, the lifting system controls the drilling pressure to feed the drill bit, causing it to rotate and advance downwards, breaking the rock at the bottom of the hole. The mud circulation system maintains the circulation of drilling fluid, removes rock cuttings from the bottom of the well and carries them to the surface, while also cooling and lubricating the drill bit and drilling tools.

[0003] During operation, drilling rigs need to continuously add drill rods to achieve drilling. Therefore, drilling rigs need to be equipped with a rod-loading mechanism. Existing rod-loading mechanisms mostly use a gripping arm (mechanical arm) to grip and load materials. Although this can meet the needs of automatic loading, it has problems such as high structural complexity and difficulty in control. Especially since drilling rigs are mostly used in remote and sparsely populated areas, maintenance is difficult. Therefore, developing a rod-loading mechanism that is simple in structure, easy to operate, and reliable is the current direction of development. Utility Model Content

[0004] This utility model addresses the technical problems existing in the upper rod mechanism of drilling rigs by proposing a main shaft rotary hydraulic propulsion drilling rig that is reasonably designed, simple in structure, easy to operate, and safe and reliable.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a rotary hydraulic propulsion drilling rig, including a frame and a power head mounted on the frame. The power head is slidably mounted on the frame. An upper rod mechanism is also provided on the frame, extending from one side of the frame to the bottom. The upper rod mechanism includes spaced-apart fixed plates and drive shafts mounted at both ends of the fixed plates. The drive shafts are rotatably mounted on the fixed plates. Drive gears are fitted at both ends of the drive shafts, and a scraper chain is fitted between the drive gears at the same end. The frame also... A lifting mechanism is provided, which includes a lifting cylinder mounted on the frame and a bracket for lifting the drill rod mounted on the power end of the lifting cylinder. The lifting mechanism is located near both ends of the drive shaft, between the two drive shafts and near the drive shaft located below the frame. A fixing mechanism is also provided on the frame, which includes a fixing frame mounted on the frame and a pressing cylinder mounted on the fixing frame. A pressure frame is provided on the power end of the pressing cylinder. The pressure frame is positioned opposite to any one of the brackets. The opposing surfaces of the bracket and the pressure frame are provided with grooves for clamping the drill rod.

[0006] Preferably, the mounting bracket is rotatably mounted on the frame.

[0007] Preferably, the mounting bracket is positioned close to the power head.

[0008] Preferably, the power head includes a sliding seat and a mounting bracket mounted on the sliding seat. A motor is mounted on the mounting bracket, and a rotary reduction mechanism is connected to the transmission end of the motor. The output end of the rotary reduction mechanism is mounted on the main shaft. One end of the main shaft extends out of the mounting bracket. The main shaft is rotatably mounted on the mounting bracket and is tubular in shape. A piston is mounted inside the main shaft, and a piston rod is provided at one end of the piston. The piston rod is located at the end of the main shaft that extends out of the mounting bracket. An oil circuit distributor is also mounted on the main shaft. The main shaft has oil passages for the reciprocating motion of the piston. An oil tank is connected to the oil circuit distributor. The oil tanks are located on both sides of the main shaft and are fixed to the mounting bracket.

[0009] Preferably, one end of the main shaft extending out of the mounting bracket is connected to an auxiliary shaft, and the end face of the auxiliary shaft away from the main shaft is provided with an external thread. The auxiliary shaft is also tubular, and the piston rod extends into the auxiliary shaft.

[0010] Preferably, a push rod is provided at the end of the piston away from the piston rod, and the push rod passes through the main shaft.

[0011] Preferably, a water injection sleeve is fitted around the auxiliary shaft, and a bearing is fitted between the water injection sleeve and the auxiliary shaft.

[0012] Preferably, the motor is a hydraulic motor.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] This utility model provides a rotary hydraulic propulsion drilling rig. By installing an upper rod mechanism on one side of the existing frame, the upper rod mechanism's scraper chain supports and transports the drill rod. A lifting mechanism located between the drive shafts pushes the drill rod. In addition, the drill rod is fixed by cooperating with a fixing mechanism. Then, the automatic rotation of the power head spindle achieves automatic connection with the drill rod, completing the automatic feeding of the drill rod. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main shaft rotary hydraulic propulsion drilling rig provided in Example 1;

[0017] Figure 2 A top view of the spindle-rotating hydraulic propulsion drilling rig provided in Example 1;

[0018] Figure 3 A schematic diagram of the power head provided in Example 1;

[0019] Figure 4 A structural schematic diagram of the power head from another angle provided in Embodiment 1;

[0020] Figure 5 This is a partial cross-sectional structural diagram of the power head provided in Example 1;

[0021] Figure 6 Provided for Example 1 Figure 5 The main view;

[0022] In the above figures, 1. Frame; 11. Sliding cylinder; 2. Power head; 21. Sliding seat; 22. Mounting bracket; 23. Motor; 24. Rotary reduction mechanism; 25. Main shaft; 251. Piston; 252. Piston rod; 253. Piston sleeve; 254. Push rod; 255. Oil passage; 26. Oil circuit distributor; 27. Oil tank; 28. Auxiliary shaft; 281. Flange sleeve; 29. ​​Water injection sleeve; 3. Upper rod mechanism; 31. Fixing plate; 32. Drive shaft; 33. Scraper chain; 4. Lifting mechanism; 41. Lifting cylinder; 42. Bracket; 5. Fixing mechanism; 51. Fixing frame; 52. Lower cylinder; 53. Pressure frame; 54. Rotary motor; 6. Drill rod. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, such as Figures 1-2As shown, this embodiment aims to provide a simple and reliable upper rod mechanism 3. To this end, the spindle-rotating hydraulic propulsion drilling rig provided in this embodiment includes a frame 1 and a power head 2 mounted on the frame 1. It should be noted that the frame 1 mentioned in this embodiment does not refer to the entire drilling rig frame 1, but rather to the frame 1 used to mount the power head 2. The power head 2 is slidably mounted on the frame 1. In this embodiment, two spaced-apart hydraulic cylinders 11 are provided on the frame 1. The fixed end of the hydraulic cylinder 11 is connected to the sliding seat of the power head 2, while the piston end is fixedly connected to the frame 1, enabling the sliding of the power head 2. The power head 2 is positioned near one end of the frame 1, and a support sleeve is provided at the other end of the frame 1 to support the drill rod 6.

[0026] The above structure is a common structure of existing drilling rigs, therefore, it will not be described in detail in this embodiment.

[0027] To provide a simple and reliable rod-mounting mechanism 3, this embodiment also provides a rod-mounting mechanism 3. Specifically, a rod-mounting mechanism 3 is provided on the frame 1, extending from one side of the frame 1 to the bottom of the frame 1, or from the bottom of the frame 1 to one side of the frame 1. More specifically, in this embodiment, the rod-mounting mechanism 3 includes spaced-apart fixed plates 31 and drive shafts 32 at both ends of the fixed plates 31. The spacing between the fixed plates 31 needs to be greater than the shaft diameter of the drill rod 6. A drive motor is provided on the fixed plates 31 to realize the rotation of the drive shaft 32 at one end. In order to make the drive shafts 32 at both ends rotate synchronously and simultaneously convey the drill rod 6, in this embodiment, drive gears are fitted at both ends of the drive shaft 32, and a scraper chain 33 is fitted between the drive gears at the same end. The scraper chain 33 has a structure with plates on the side wall of the chain. In this embodiment, the spacing between the scrapers in the scraper chain 33 meets the requirements of the drill rod 6. In this way, the rotation of the scraper chain 33 drives the movement of the drill rod 6.

[0028] Since the upper rod mechanism 3 is located above the frame 1 and the power head 2 is located below the frame 1, a lifting mechanism 4 is also needed to push the drill rod 6. Therefore, in this embodiment, a lifting mechanism 4 is also provided on the frame 1. The lifting mechanism 4 includes a lifting cylinder 41 provided on the frame 1 and a bracket 42 for supporting the drill rod 6 provided at the power end of the lifting cylinder 41. In this embodiment, the lifting cylinder 41 is a hydraulic cylinder 11, and the bracket 42 is generally rectangular and has a semi-cylindrical groove on its top for placing the drill rod 6.

[0029] Since the drill rod 6 has a certain length, the lifting mechanism 4 is set near both ends of the drive shaft 32, that is, two lifting mechanisms 4 are set. Since the lifting mechanism 4 is also located below the frame 1, in order to facilitate lifting, the lifting mechanism 4 is set between the two drive shafts 32 and near the drive shaft 32 located below the frame 1. At the same time, it is also located below the upper rod mechanism 3. In this way, when the drill rod 6 moves above the lifting mechanism 4, the lifting mechanism 4 moves to lift the drill rod 6 from the scraper chain 33, and raise it above the frame 1 through the gap between the two spaced hydraulic cylinders 11 on the frame 1, forming a coaxial arrangement with the power end of the power head 2.

[0030] The external thread of the power head 2 needs to be threaded to the internal thread of the drill rod 6, and it is also necessary to ensure that the drill rod 6 is not obstructed on the bracket 42. For this purpose, a fixing mechanism 5 is also provided on the frame 1. The fixing mechanism 5 includes a fixing frame 51 provided on the frame 1 and a pressing cylinder 52 provided on the fixing frame 51. In this embodiment, the fixing frame 51 is inverted L-shaped, and the pressing cylinder 52 is provided at its horizontal end. A pressure frame 53 is provided at the power end of the pressing cylinder 52. The pressure frame 53, like the bracket 42, is also in the shape of a cuboid block, and a semi-cylindrical groove is provided on its bottom surface for cooperating with the bracket 42.

[0031] Considering that only one end of the drill rod 6 needs to be pressed down, the pressure frame 53 is set opposite to any bracket 42. Of course, the best bracket 42 is the one closer to the power head 2.

[0032] Considering that the structure of the fixed frame 51 is relatively high if it does not affect the normal sliding of the power head 2, the stroke of the pressing cylinder 52 would need to be long, resulting in a high overall machine height and affecting subsequent use. Therefore, in this embodiment, a rotary motor 54 is provided on the frame 1, allowing the fixed frame 51 to be rotatably mounted on the frame 1, thus avoiding interference.

[0033] To broaden the application range of drilling rig power heads and reduce drilling costs, this embodiment also provides a power head, such as... Figures 3-6 The power head provided in this embodiment includes a sliding seat 21 and a mounting bracket 22 disposed on the sliding seat 21. The sliding seat 21 is mainly connected to the hydraulic cylinder 11 to slide on the frame 1 and complete the advancement of the drill rod 66. The mounting bracket 22 can also be said to be the housing of the power head. It is mainly used to cover some sealed equipment inside to reduce the entry of dust and dirt. At the same time, it also plays a supporting and fixing role for some equipment.

[0034] A motor 23 is mounted on the mounting frame 22. The conveying end of the motor 23 is connected to a rotary reduction mechanism 24, which is a speed reducer. It uses the meshing between gears to reduce the rotational speed and achieve low speed and high torque. Since the rotation of the main shaft 25 needs to be controlled, the output end (gear) of the rotary reduction mechanism 24 is mounted on the main shaft 25. The main shaft 25 is cylindrical in shape. Due to the installation of sealing structures, bearings and other structures, the diameter of different sections of the main shaft 25 is slightly different. One end of the main shaft 25 extends out of the mounting frame 22 and the main shaft 25 is rotatably mounted on the mounting frame 22. The above structure is the structure of the existing common drilling rig power head. Therefore, it will not be described in detail in this embodiment.

[0035] Considering the need to enhance the functionality of the power head, its output is also required. The spindle 25 serves as the output end of the entire power head, and its end needs to connect to the drill rod 6. Therefore, in this embodiment, the spindle 25 is tubular, with a piston 251 housed inside. A piston rod 252 is attached to one end of the piston 251. In this embodiment, a piston sleeve 253 is also housed inside the spindle 25. The piston sleeve 253 serves two purposes: sealing one end of the spindle 25 and maintaining the stability of the piston rod 252's extension and retraction. The piston rod 252 is positioned at the end of the spindle 25 extending beyond the mounting bracket 22.

[0036] To promote the movement of piston 251, oil or air is required. Since most of the equipment used in drilling rigs is hydraulic, an oil circuit distributor 26 is installed on the spindle 25. An oil passage 255 for the reciprocating motion of piston 251 is provided on the spindle 25. The outlets of the oil passage 255 are located at both ends of piston 251. In this way, the reciprocating motion of piston 251 is achieved by filling and draining oil at both ends of piston 251.

[0037] Of course, an oil tank 27 is connected to the oil distributor 26. The function of the oil tank 27 is to store oil and connect to the liquid station. In this embodiment, the oil tank 27 is located on both sides of the main shaft 25 and is fixed to the mounting bracket 22. In this embodiment, bolts are used for fixing. Of course, the oil distributor 26 is also relatively fixed to the mounting bracket 22 to keep the oil passage unobstructed.

[0038] With the above configuration, the main shaft 25 forms the fixed end of the existing hydraulic cylinder, while the piston rod 252 is the output end. It can be used in conjunction with the existing low-pressure pneumatic-hydraulic driven expander, thus avoiding the need to purchase the low-pressure pneumatic-hydraulic driven expander separately. To save costs, in this embodiment, the motor 23 is a hydraulic motor, so it can share a liquid station with the oil tank 27, reducing operating costs.

[0039] To further enhance functionality, in this embodiment, an auxiliary shaft 28 is connected to the end of the main spindle 25 extending from the mounting bracket 22. The auxiliary shaft 28 is essentially an extension of the main spindle 25 and is also tubular in shape. The piston rod 252 extends into the auxiliary shaft 28. In this embodiment, an external thread is provided on the end face of the auxiliary shaft 28 away from the main spindle 25. This external thread is used for connecting the drill rod 6. In this embodiment, a fixing sleeve is fitted onto the end of the main spindle 25. The fixing sleeve is fixed to a flange sleeve 281 by bolts. The auxiliary shaft 28 and the flange sleeve 281 are connected by threads. Thus, after removing the auxiliary shaft 28, most of the piston rod 252 can be exposed. At this time, the flange sleeve 281 can be used to connect with other pipe fittings that need to be driven, increasing the functionality.

[0040] To further ensure the stability of piston 251's movement, a push rod 254 is provided at the end of piston 251 away from piston rod 252, and the push rod 254 passes through the main shaft 25. Another function of the push rod 254 is to cooperate with the end cap at the other end of the main shaft 25 to achieve a seal.

[0041] Considering that the purpose of expanding the hole is to expel the gas in the cavity, a water injection sleeve 29 is fitted around the auxiliary shaft 28, and a bearing is fitted between the water injection sleeve 29 and the auxiliary shaft 28. That is, the water injection sleeve 29 is fixed relative to the mounting bracket 22, so that water can be injected into the pipe, thereby playing its role in the gas extraction cavity.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A rotary hydraulic propulsion drilling rig, comprising a frame and a power head mounted on the frame, wherein the power head is slidably mounted on the frame, characterized in that, The frame is also equipped with an upper rod mechanism, which extends from one side of the frame to the bottom of the frame. The upper rod mechanism includes fixed plates spaced apart and drive shafts at both ends of the fixed plates. The drive shafts are rotatably mounted on the fixed plates. Drive gears are fitted at both ends of the drive shafts, and scraper chains are fitted between the drive gears at the same end. The frame is also equipped with a lifting mechanism, which includes a lifting cylinder mounted on the frame and a bracket for lifting drill rods mounted on the power end of the lifting cylinder. The lifting mechanism is located near both ends of the drive shafts and is positioned between two drive shafts and near the drive shaft located below the frame. The frame is also equipped with a fixing mechanism, which includes a fixing frame mounted on the frame and a lowering cylinder mounted on the fixing frame. A pressure frame is mounted on the power end of the lowering cylinder. The pressure frame is positioned opposite to any one of the brackets, and the opposite surfaces of the bracket and the pressure frame are provided with grooves for clamping drill rods.

2. The spindle-rotating hydraulic propulsion drilling rig according to claim 1, characterized in that, The mounting bracket is rotatably mounted on the frame.

3. The spindle-rotating hydraulic propulsion drilling rig according to claim 2, characterized in that, The mounting bracket is positioned close to the power head.

4. The spindle-rotating hydraulic propulsion drilling rig according to any one of claims 1 to 3, characterized in that, The power head includes a sliding seat and a mounting bracket mounted on the sliding seat. A motor is mounted on the mounting bracket, and the motor's output end is connected to a rotary reduction mechanism. The output end of the rotary reduction mechanism is mounted on a main shaft, and one end of the main shaft extends out of the mounting bracket. The main shaft is rotatably mounted on the mounting bracket and is tubular in shape. A piston is mounted inside the main shaft, and a piston rod is mounted at one end of the piston. The piston rod is located at the end of the main shaft that extends out of the mounting bracket. An oil circuit distributor is also mounted on the main shaft, and the main shaft has oil passages for the reciprocating motion of the piston. An oil tank is connected to the oil circuit distributor, and the oil tanks are located on both sides of the main shaft and fixed to the mounting bracket.

5. The spindle-rotating hydraulic propulsion drilling rig according to claim 4, characterized in that, An auxiliary shaft is connected to one end of the main shaft that extends out of the mounting bracket. The auxiliary shaft has an external thread on its end face away from the main shaft. The auxiliary shaft is also tubular. The piston rod extends into the auxiliary shaft.

6. The spindle-rotating hydraulic propulsion drilling rig according to claim 5, characterized in that, A push rod is provided at the end of the piston away from the piston rod, and the push rod passes through the main shaft.

7. The spindle-rotating hydraulic propulsion drilling rig according to claim 6, characterized in that, The auxiliary shaft is fitted with a water injection sleeve, and a bearing is fitted between the water injection sleeve and the auxiliary shaft.

8. The spindle-rotating hydraulic propulsion drilling rig according to claim 7, characterized in that, The motor is a hydraulic motor.

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