An auxiliary soil taking device for a rotary drilling rig drill bit
Patent Information
- Application Number
- CN202522367459.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-11-07
AI Technical Summary
[0014]本实用新型实施例提供的上述技术方案的有益效果至少包括：
Smart Images
Figure CN224742318U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling equipment technology, and in particular to an auxiliary soil removal device for rotary drilling rig bits. Background Technology
[0002] Rotary drilling rigs are construction machines suitable for drilling operations in foundation engineering. The drill bit of a rotary drilling rig is typically a cylindrical structure with an openable bottom. When the drill bit rotates and drills, the open bottom of the cylindrical structure cuts and holds the soil. Once the cylinder is full of soil, its bottom closes, bringing the soil to the surface. To remove the soil from the cylinder for subsequent drilling operations, soil removal is usually required. The common method for soil removal is to first open the bottom of the cylindrical structure, then rotate the drill bit to use centrifugal force to eject the soil from the drill bit. Utility Model Content
[0003] In order to enrich the product range of rotary drilling rig bit auxiliary soil removal devices and improve the soil removal efficiency of rotary drilling rig bit auxiliary soil removal devices, this utility model proposes a rotary drilling rig bit auxiliary soil removal device.
[0004] This utility model proposes an auxiliary soil removal device for rotary drilling rig bits, comprising: a soil removal base, a soil removal column, a soil removal column tip, and a high-pressure flushing assembly; The bottom of the soil-boring column is connected to the soil-boring base; The tip of the soil sampling column is connected to the top of the soil sampling column; The soil sampling column tip is used to insert into the drill bit of the rotary drilling rig to clear the soil inside the drill bit during the rotation of the drill bit; The flushing assembly includes a water tank, a high-pressure water pipe, a high-pressure water pump, and a pressure trigger button. The water tank is located on the soil sampling base, and the tip of the soil sampling column has a water outlet. One end of the high-pressure water pipe is connected to the water tank, and the other end of the high-pressure water pipe is connected to the water outlet. The high-pressure water pipe is equipped with the high-pressure water pump. The pressure trigger button is located at the top of the soil sampling column and is electrically connected to the high-pressure water pump. The pressure trigger button is used to start the high-pressure water pump after being pressurized.
[0005] Optionally, the soil sampling column tip includes multiple soil sampling plates, the bottom of the multiple soil sampling plates is connected to the top of the soil sampling column, the multiple soil sampling plates are spaced apart along the circumferential direction, and the sides of the multiple soil sampling plates facing the axis of the soil sampling column are connected together at the axis of the soil sampling column.
[0006] Optionally, each of the soil sampling plates has an inclined cutting edge on the side facing away from the axis of the soil sampling column.
[0007] Optionally, the upper surface of the inclined cutting edge is provided with a plurality of protruding teeth.
[0008] Optionally, each of the soil sampling plates is provided with a water outlet, and a high-pressure branch pipe is connected between the end of the high-pressure water pipe away from the water tank and each of the water outlets.
[0009] Optionally, the multiple soil sampling plates are arranged at equal intervals along the circumferential direction.
[0010] Optionally, the length of the soil sampling column is adjustable.
[0011] Optionally, the soil sampling column is a hydraulic telescopic rod.
[0012] Optionally, a haunch plate is provided between the soil sampling column and the soil sampling base.
[0013] Optionally, multiple armhole plates are provided and spaced apart along the circumferential direction.
[0014] The beneficial effects of the above-mentioned technical solutions provided by the embodiments of this utility model include at least the following: In the technical solution provided by this utility model, when soil removal is required from a rotary drilling rig, the operator first opens the bottom of the drill bit, then drives the drill bit to rotate while moving downwards to insert the soil removal column tip into the drill bit. At this time, the soil inside the drill bit is broken by the resistance of the soil removal column tip, and the broken soil falls off under gravity. During the repeated rotation of the drill bit, all the soil inside the drill bit falls off. Simultaneously, when the drill bit moves downwards to a certain height, the pressure trigger button is pressed. At this time, the drill bit stops moving downwards, and the pressure trigger button, after being pressed, starts a high-pressure water pump to deliver water from the water tank to the outlet of the soil removal column tip. This achieves soil breaking by the soil removal column tip while simultaneously flushing the inside of the drill bit with high-pressure water, greatly improving the soil removal effect and efficiency. Compared with the soil removal method that relies solely on centrifugal force to throw out the soil, the device provided in this application does not leave any residual soil, resulting in better soil removal effect and efficiency, and less noise and environmental pollution. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0016] Figure 1 A top view of an auxiliary soil-taking device for a rotary drilling rig bit provided by this utility model; Figure 2 for Figure 1 A sectional view of section AA in the image; Figure 3 for Figure 1 A sectional view of section BB in the image.
[0017] Explanation of icon numbers: 100-Rotary drilling rig drill bit auxiliary soil removal device; 1-Soil sampling base; 11-Adding a haunch plate; 2-Take soil and erect pillars; 3-Soil sampling column tip; 31-Soil sampling plate; 311-Inclined cutting edge; 3111-Protruding toothed part; 312-Water outlet; 4-High-pressure flushing assembly; 41-Water tank; 42-High-pressure water pipe; 421-High-pressure branch pipe; 43-High-pressure water pump; 44-Pressure trigger button.
[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0022] Currently, when rotary drilling rigs are used for soil extraction, the drill bit is rotated to use centrifugal force to eject the soil inside the drill bit. The inventors discovered that when drilling in heavy clay areas, due to the strong cohesion of the soil, it is difficult to eject all the soil inside the rotary drilling rig drill bit using centrifugal force. Often, 40% of the soil remains in the drill bit, which greatly affects the efficiency of the entire rotary drilling operation, resulting in problems such as low construction efficiency, high cost, and noise pollution.
[0023] To at least partially solve the aforementioned problems, the inventors attempted to design an auxiliary soil-removing device for rotary drilling rigs. They unexpectedly discovered that by designing a soil-removing column tip that can be inserted into the rotary drilling rig bit, along with a high-pressure flushing component, the soil inside the bit is broken up by the resistance of the soil-removing column tip during repeated rotation, causing all the soil inside the bit to fall out. Meanwhile, the high-pressure flushing component simultaneously breaks up the soil at the soil-removing column tip and flushes the inside of the bit with high pressure. Through the synergistic effect of the soil-removing column tip and the high-pressure flushing component, the soil-removing effect and efficiency of the drill bit are greatly improved. Compared to soil-removing methods that rely solely on centrifugal force to eject soil, the device provided in this application eliminates the possibility of residual soil, resulting in better soil-removing effect and efficiency, and less noise and environmental pollution.
[0024] Based on this, the present invention provides an auxiliary soil removal device for rotary drilling rig bits. Figures 1 to 3 This is a specific embodiment of the rotary drilling rig drill bit auxiliary soil removal device provided by this utility model.
[0025] Please see Figures 1 to 3 The rotary drilling rig drill bit auxiliary soil removal device 100 provided by this utility model includes a soil removal base 1, a soil removal column 2, a soil removal column tip 3, and a high-pressure flushing assembly 4. (See reference) Figure 2The bottom of the soil-collecting column 2 is connected to the soil-collecting base 1. The soil-collecting column tip 3 is connected to the top of the soil-collecting column 2. The soil-collecting column tip 3 is used to insert into the drill bit of the rotary drilling rig to clean the soil inside the drill bit during the rotation of the drill bit. The flushing assembly includes a water tank 41, a high-pressure water pipe 42, a high-pressure water pump 43, and a pressure trigger button 44. The water tank 41 is located on the soil-collecting base 1. The soil-collecting column tip 3 has a water outlet 312. One end of the high-pressure water pipe 42 is connected to the water tank 41, and the other end of the high-pressure water pipe 42 is connected to the water outlet 312. The high-pressure water pipe 42 is equipped with the high-pressure water pump 43. The pressure trigger button 44 is located on the top of the soil-collecting column tip 3 and is electrically connected to the high-pressure water pump 43. The pressure trigger button 44 is used to start the high-pressure water pump 43 after being pressurized.
[0026] In the technical solution provided by this utility model, when it is necessary to perform soil extraction operations on the borehole of a rotary drilling rig, the construction personnel first open the bottom of the drill bit, and then drive the drill bit to rotate while moving downwards to insert the soil extraction column tip 3 into the drill bit. At this time, the soil inside the drill bit will be broken by the resistance of the soil extraction column tip 3, and the broken soil will fall off under the action of gravity. During the repeated rotation of the drill bit, all the soil inside the drill bit will fall off. At the same time, when the drill bit moves downwards to a certain height, the pressure trigger button 44 will be pressed. At this time, the drill bit will stop moving downwards. After being pressed, the pressure trigger button 44 will start the high-pressure water pump 43 to transport the water in the water tank 41 to the water outlet 312 of the soil extraction column tip 3 and spray it out. Thus, while the soil is broken by the soil extraction column tip 3, the inside of the drill bit is also washed by high-pressure water, which greatly improves the soil extraction effect and efficiency of the drill bit. Compared to soil extraction methods that rely solely on centrifugal force to eject soil, the device provided in this application eliminates the presence of residual soil, resulting in better soil extraction performance and efficiency, while generating less noise and causing less environmental pollution.
[0027] It should be noted that the soil sampling base 1 is mainly used to fix the soil sampling column 2 to prevent the soil sampling column 2 from tilting due to the rotation of the drill bit. The size of the planar area of the soil sampling base 1 is not specifically limited and can be selected according to the actual situation. For example, the steel plate base is a 2m × 2m steel plate.
[0028] It should be noted that the positional relationship between the water tank 41 and the soil-boring column 2 is not specifically limited and can be selected according to the actual situation. For example, the water tank 41 is located on the soil-boring base 1 and on one side of the soil-boring column 2.
[0029] The following will describe, through exemplary illustration, a further detailed or improved implementation or refinement of the rotary drilling rig's drill bit auxiliary soil removal device 100, in order to further improve its working efficiency, reliability, or for other improvement considerations.
[0030] Considering the significant torque and pressure generated when the drill bit rotates and fits into the soil sampling column tip 3, in some embodiments, the soil sampling column tip 3 includes multiple soil sampling plates 31. The bottoms of the multiple soil sampling plates 31 are connected to the top of the soil sampling column 2, and the multiple soil sampling plates 31 are spaced apart along the circumference. This design can distribute the torque and pressure generated during drill bit rotation to each soil sampling plate 31, preventing deformation or damage to the soil sampling column tip 3 structure due to excessive stress on any one soil sampling plate 31. The sides of the multiple soil sampling plates 31 facing the axis of the soil sampling column 2 are connected together at the axis of the soil sampling column 2. Thus, the multiple soil sampling plates 31 are connected together at the axis of the soil sampling column 2, thereby forming a rigid spatial support frame together with the soil sampling column 2, improving the stability and service life of the soil sampling column tip 3 structure.
[0031] In some embodiments, each of the soil sampling plates 31 has an inclined cutting edge 311 on its side opposite to the axis of the soil sampling column 2. Thus, when the drill bit rotates, the inclined cutting edge 311 no longer simply compresses the soil head-on, but rather generates relative sliding and shearing. This shearing force is effective in disrupting the internal structure of the soil and severing its cohesive bonds, efficiently cutting large chunks of clay into smaller pieces, with a far better crushing effect than vertical impact. Moreover, it is understandable that a vertical plate surface can easily cause fragments to get stuck on the side, causing blockages. However, the inclined cutting edge 311 of this application has a slope, allowing the crushed soil fragments to slide down the inclined surface, providing good guidance for the discharge of the soil fragments. Please refer to... Figure 2 For example, the soil sampling plate 31 of this application is a right-angled trapezoidal steel plate. Among the two parallel sides of the right-angled trapezoid, the longer side is located on the inner side of the soil sampling column 2, and the shorter side is located on the outer side of the soil sampling column 2. The right-angled side is connected to the upper surface of the soil sampling column 2, and the hypotenuse serves as the inclined blade edge 311.
[0032] In order to further improve the soil breaking efficiency of the inclined blade edge 311, in some embodiments, the upper surface of the inclined blade edge 311 is provided with a plurality of protruding teeth 3111. When the inclined blade edge 311 contacts the soil through the protruding teeth 3111, the pressure is greater, which is more conducive to breaking harder soil blocks and improving soil extraction efficiency.
[0033] In some embodiments, each of the soil sampling plates 31 is provided with a water outlet 312, and a high-pressure branch pipe 421 is connected between the end of the high-pressure water pipe 42 away from the water tank 41 and each of the water outlets 312. Thus, when the pressure trigger button 44 is pressed and the high-pressure water pump 43 is activated, multiple water outlets 312 can simultaneously spray high-pressure water, flushing the inside of the drill bit from different directions, greatly improving the soil sampling effect and efficiency.
[0034] Considering that when the drill bit rotates at high speed and fits into the tip 3 of the soil sampling column, uneven distribution of the multiple soil sampling plates 31 may cause the center of gravity of the entire device to deviate from the axis of rotation, generating vibration. This would not only affect the soil sampling effect but also cause impact damage to the soil sampling column 2 and the base, posing a safety hazard. Therefore, please refer to... Figure 1 In some embodiments, the plurality of soil sampling plates 31 are arranged at equal intervals along the circumferential direction.
[0035] Considering that the adjustable height range of the drill bit varies among different models and brands of rotary drilling rigs, in order to improve the versatility of the rotary drilling rig drill bit auxiliary soil sampling device 100, in some embodiments, the length of the soil sampling column 2 is adjustable. Thus, if the pressure trigger button 44 cannot be pressed even after the drill bit has descended to its lowest ground height, the height of the pressure trigger button 44 at the top of the soil sampling column tip 3 can be adjusted by adjusting the length of the soil sampling column 2 to assist in triggering the button. For example, the soil sampling column 2 uses a hydraulic telescopic rod. When the length adjustment accuracy of the hydraulic telescopic rod is greater than the ground height adjustment accuracy of the rotary drilling rig drill bit, the ground height of the drill bit can be adjusted first for coarse adjustment, and then the height of the pressure trigger button 44 at the top of the soil sampling column tip 3 can be finely adjusted by adjusting the length of the hydraulic telescopic rod, thereby achieving precise triggering of the high-pressure water pump 43.
[0036] To improve the connection strength between the soil sampling column 2 and the soil sampling base 1, as well as the bending resistance of the connection area, refer to... Figure 2 In some embodiments, a haunch plate 11 is provided between the soil sampling column 2 and the soil sampling base 1. This haunch plate 11 can efficiently transfer the torsional force borne by the soil sampling column 2 to the soil sampling base 1, thereby greatly enhancing the resistance of the connection area to bending moment and torque, preventing bending or breakage of the connection area, and significantly improving the overall structural strength. For example, multiple haunch plates 11 are provided and are equidistantly spaced along the circumference, which can further improve the connection strength between the soil sampling column 2 and the soil sampling base 1, as well as the bending resistance of the connection area.
[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.
Claims
1. A soil-removal auxiliary device for a rotary drilling rig, characterized in that, include: Soil sampling base, soil sampling column, soil sampling column tip, and high-pressure flushing assembly; The bottom of the soil-boring column is connected to the soil-boring base; The tip of the soil sampling column is connected to the top of the soil sampling column; The soil sampling column tip is used to insert into the drill bit of the rotary drilling rig to clear the soil inside the drill bit during the rotation of the drill bit; The flushing assembly includes a water tank, a high-pressure water pipe, a high-pressure water pump, and a pressure trigger button. The water tank is located on the soil sampling base, and the tip of the soil sampling column has a water outlet. One end of the high-pressure water pipe is connected to the water tank, and the other end of the high-pressure water pipe is connected to the water outlet. The high-pressure water pipe is equipped with the high-pressure water pump. The pressure trigger button is located at the top of the soil sampling column and is electrically connected to the high-pressure water pump. The pressure trigger button is used to start the high-pressure water pump after being pressurized.
2. The rotary drilling rig drill bit auxiliary soil removal device as described in claim 1, characterized in that, The soil sampling column tip includes multiple soil sampling plates, the bottom of which is connected to the top of the soil sampling column. The multiple soil sampling plates are spaced apart along the circumferential direction, and the sides of the multiple soil sampling plates facing the axis of the soil sampling column are connected to the axis of the soil sampling column.
3. The earth boring rig bit assisted soil removal device of claim 2, wherein, Each of the soil sampling plates has an inclined cutting edge on the side facing away from the axis of the soil sampling column.
4. The rotary drilling rig drill bit auxiliary soil removal device as described in claim 3, characterized in that, The upper surface of the inclined cutting edge is provided with several protruding teeth.
5. The rotary drilling rig drill bit auxiliary soil removal device as described in claim 2, characterized in that, Each of the soil sampling plates is provided with a water outlet, and a high-pressure branch pipe is connected between the end of the high-pressure water pipe away from the water tank and each of the water outlets.
6. The rotary drilling rig drill bit auxiliary soil removal device as described in claim 2, characterized in that, The multiple soil sampling plates are arranged at equal intervals along the circumferential direction.
7. The back-acting soil-augmenting device of claim 1, wherein, The length of the soil sampling column is adjustable.
8. The rotary drilling rig bit auxiliary soil taking device of claim 7, wherein, The soil sampling column is a hydraulic telescopic rod.
9. The rotary drilling rig drill bit auxiliary soil removal device as described in claim 1, characterized in that, A haunch plate is provided between the soil sampling column and the soil sampling base.
10. The rotary drilling rig drill bit auxiliary soil removal device as described in claim 9, characterized in that, Multiple armhole plates are provided and are spaced apart along the circumferential direction.