Based on quiet and noise-reducing rotary drilling bits for construction

Abstract

This invention provides a rotary drilling bit for quiet and noise-reducing construction, belonging to the field of engineering equipment technology. It includes a first drill base, a second drill base, a rigid folding ring, a first sound-insulating plate, a second sound-insulating plate, a spring, a connecting member, a first drill blade, a second drill blade, and a driving component. The first and second drill bases are coaxially arranged with open surfaces on their opposing sides. The rigid folding ring is coaxially arranged between the first and second drill bases and is fixedly connected to them. The first sound-insulating plate is fixedly arranged on the bottom wall of the opening of the first drill base. The second sound-insulating plate is slidably arranged within the opening of the first drill base. The spring is arranged between the first and second sound-insulating plates, with one end fixedly connected to the first sound-insulating plate and the other end fixedly connected to the second sound-insulating plate. The connecting member connects the second sound-insulating plate to the second drill base. This invention provides a certain degree of quietness and noise reduction for the rotary drilling bit.

Description

Technical Field

[0001] This invention relates to the field of engineering equipment technology, and more specifically, to a rotary drilling bit for construction based on noise reduction. Background Technology

[0002] Rotary drilling rigs are comprehensive drilling machines that can operate on various geological formations. They feature fast drilling speed, low pollution, and high mobility. Short auger bits are used for dry excavation, while rotary bits can be used for wet excavation with mud slurry support. Rotary drilling rigs can be used with hammer drills to break up hard strata before drilling. When used with reaming tools, they can be used for hole enlargement at the bottom of the hole. Rotary drilling rigs use multi-layer telescopic drill rods, reducing drilling auxiliary time, lowering labor intensity, and eliminating the need for mud circulation and slag removal, thus saving costs. They are particularly suitable for foundation construction in urban development.

[0003] As a crucial component of rotary drilling rigs, the drill bit directly interacts with the strata, playing a vital role in excavation and drilling. However, the interaction between the drill bit and the strata generates significant noise that is transmitted to the rotary drilling rig and then to the outside world, severely impacting the normal lives of nearby residents. Therefore, there is an urgent need for a rotary drilling bit designed for quiet and noise-reducing construction. Summary of the Invention

[0004] The purpose of this invention is to provide a rotary drilling bit for construction based on quiet and noise-reducing technology, which has certain quiet and noise-reducing functions.

[0005] The embodiments of the present invention are achieved through the following technical solution: A rotary drilling bit for quiet construction includes a first drill base, a second drill base, a rigid folded ring, a first sound-insulating plate, a second sound-insulating plate, a spring, a connector, a first drill blade, a second drill blade, and a driving component. The first drill base and the second drill base are coaxially arranged and their opposing surfaces are both open. The rigid folded ring is coaxially arranged between the first drill base and the second drill base and is fixedly connected to both the first drill base and the second drill base. The first sound-insulating plate is fixedly arranged on the bottom wall of the opening of the first drill base. The second sound-insulating plate is slidably arranged in the opening of the first drill base. The spring is arranged between the first sound-insulating plate and the second drill base. Between the sound insulation panels, one end of the spring is fixedly connected to the first sound insulation panel, and the other end is fixedly connected to the second sound insulation panel. The connector is used to connect the second sound insulation panel and the second drill base. Multiple first drill blades are evenly arranged along the circumference of the second drill base and correspond one-to-one with the second drill blades. One end of the first drill blade is hinged to the second drill base, and the other end is hinged to one end of the second drill blade. The driving member is arranged on the second drill base and is used to drive the other end of all the second drill blades away from or close to the second drill base, thereby causing the first drill blade and the second drill blade to open or close. The side of the first drill blade and the second drill blade facing away from the drilling soil is fixedly provided with a sound insulation pad.

[0006] Furthermore, the connector includes a drive cylinder, and multiple drive cylinders are evenly arranged along the circumference of the first drill base. The cylinder body of each drive cylinder is ball-hinged to the second sound insulation plate, and the other end is ball-hinged to the bottom wall of the opening of the second drill base.

[0007] Furthermore, the driving component includes a multi-stage cylinder, which is disposed within the opening of the second drill base. The piston rod of the multi-stage cylinder slides out of the second drill base, and the piston rod of the multi-stage cylinder is hinged to the second drill blade.

[0008] Furthermore, the wall of the first drill bit is filled with a sound-absorbing plate.

[0009] Furthermore, it also includes a hose and a nozzle. The hose passes through the first drill base and the second drill base. The nozzle is connected to one end of the hose and is directly below the second drill base. The other end of the hose is provided with a water pipe connector.

[0010] Furthermore, each of the first drill bits is provided with a corresponding reinforcing rod, and the outer wall of the second drill base is provided with a sliding groove along its own height direction. The sliding groove corresponds one-to-one with the first drill bit. A sliding block is slidably provided on the sliding groove and is slidably engaged in the sliding groove. One end of the reinforcing rod is hinged to the sliding block and the other end is hinged to the first drill bit.

[0011] Furthermore, a receiving groove is provided on the side of the first sound insulation plate near the second sound insulation plate, and the end of the spring away from the second sound insulation plate is fixedly installed on the bottom wall of the receiving groove.

[0012] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0013] 1. This invention uses a drive component to open the first and second drill bits, which are then used to excavate and drill into the strata, reducing the contact area with the strata. The broken stones and soil will enter the cavity formed after the first and second drill bits are opened, reducing the friction between the soil and stones and the outer wall of the drill bit. At the same time, the sound insulation pads on the first and second drill bits will also reduce friction and play a role in sound insulation and noise reduction. Furthermore, when the first and second drill bits are subjected to greater pressure, the springs will expand and contract, and the first and second sound insulation plates will absorb energy and reduce noise. With the help of the deformation and energy absorption of the rigid folding ring, the whole device will achieve a good effect of quietness and noise reduction, reducing the noise generated to the environment during construction.

[0014] 2. This invention changes the angle of the second drill bit by driving the cylinder, thereby changing the position of the rotary drill and increasing the probability of drilling through the strata. When the drill bit cannot penetrate the strata, it avoids dry grinding between the drill bit and the strata, thus minimizing noise. Spraying water on the broken rocks and soil can also achieve the effect of silencing and reducing noise. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the overall structure of a rotary drilling bit for construction based on noise reduction and silent operation provided by the present invention;

[0017] Figure 2 This is a schematic diagram illustrating the internal structure of the first drill base and the second drill base according to the present invention;

[0018] Figure 3 This is a schematic diagram illustrating the structure of the spring and sound-absorbing panel of the present invention;

[0019] Figure 4 This is a schematic diagram illustrating the structure of the first and second drill bits after they are folded together, as per the present invention.

[0020] Icons: 1-First drill base, 11-First sound insulation plate, 111-Receiving groove, 12-Second sound insulation plate, 121-Avoiding opening, 13-Spring, 14-Sound absorption plate, 15-Connecting end, 2-Second drill base, 21-Slide groove, 22-Sliding block, 3-Hard folding ring, 4-Connector, 41-Drive cylinder, 5-First drill bit, 51-Sound insulation pad, 6-Second drill bit, 61-Drill cutter, 7-Driver, 71-Multi-stage cylinder, 8-Hose, 81-Nozzle, 82-Water pipe connector, 9-Reinforcing rod. Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention. Example

[0023] The following description, in conjunction with specific embodiments, provides further details. Figures 1-4 As shown, this invention relates to a rotary drilling bit for quiet construction, comprising a first drill base 1, a second drill base 2, a rigid folding ring 3, a first sound insulation plate 11, a second sound insulation plate 12, a spring 13, a connector 4, a first drill blade 5, a second drill blade 6, and a drive component 7. The top wall of the first drill base 1 is welded with a connecting end 15 for connecting the drill bit to a rotary drilling rig. The cross-sections of the first drill base 1 and the second drill base 2 are circular. The first drill base 1 and the second drill base 2 are coaxially arranged, and their opposing surfaces are all open. A sound-absorbing plate 14 is embedded in the wall of the first drill base 1 for sound absorption. Plate 14 serves to absorb sound and reduce noise. A rigid folding ring 3 is coaxially mounted between the first drill bit 1 and the second drill bit 2 and is fixedly connected to both. The first sound-insulating plate 11 is fixedly mounted on the bottom wall of the opening of the first drill bit 1. The second sound-insulating plate 12 is slidably disposed within the opening of the first drill bit 1. A spring 13 is installed between the first sound-insulating plate 11 and the second sound-insulating plate 12. A receiving groove 111 is formed on the side of the first sound-insulating plate 11 closest to the second sound-insulating plate 12. The end of the spring 13 furthest from the second sound-insulating plate 12 is fixedly welded to the receiving groove 111. On the bottom wall of 11, the other end is fixedly connected to the second sound insulation plate 12. The spring 13 is a high-strength rigid spring 13. The spring 13, within the receiving groove 111, serves a positioning and guiding function, preventing excessive deformation of the spring 13 and facilitating the absorption of the kinetic energy of the spring 13 by the first sound insulation plate 11, thus reducing noise. The connector 4 connects the second sound insulation plate 12 to the second drill base 2. Three first drill blades 5 are evenly arranged along the circumference of the second drill base 2, corresponding one-to-one with the second drill blades 6. One end of the first drill blade 5 is hinged to the second drill base 2. The hinge axis is parallel to the bottom wall of the second drill base 2, and the other end is hinged to one end of the second drill blade 6. Its hinge axis is parallel to the hinge axis between the first drill blade 5 and the second drill base 2. The driving component 7 is set on the second drill base 2 and is used to drive the other end of all the second drill blades 6 away from or close to the second drill base 2, thereby driving the first drill blade 5 and the second drill blade 6 to open or close. The side of the first drill blade 5 and the second drill blade 6 facing away from the drilling soil is fixed with a sound insulation pad 51 by rivets. At the same time, the side of the first drill blade 5 and the second drill blade 6 in contact with the drilling soil is welded with a drill bit 61.

[0024] Reference Figure 1 , 2The connecting component 4 includes a drive cylinder 41. Three drive cylinders 41 are evenly installed along the circumference of the first drill base 1. The cylinder body of each drive cylinder 41 is ball-hinged to the second sound insulation plate 12. By driving one drive cylinder 41 to extend and the other two drive cylinders 41 to shorten, the angle of the second drill base 2 can be changed to adapt to a more suitable angle for drilling into the formation. The other end is ball-hinged to the bottom wall of the opening of the second drill base 2. The driving component 7 includes a multi-stage cylinder 71. The multi-stage cylinder 71 is set inside the opening of the second drill base 2. The piston rod of the multi-stage cylinder 71 slides out of the second drill base 2. The piston rod of the multi-stage cylinder 71 is hinged to the second drill blade 6. When the cylinder body of the multi-stage cylinder 71 is short, it can still output a longer distance.

[0025] Reference Figure 2 , 3 The rotary drilling bit also includes a flexible hose 8 and a nozzle 81. Three sets of flexible hoses 8 and nozzles 81 are installed and correspond to the first drill blades 5. The flexible hose 8 passes through the first drill base 1 and the second drill base 2. Both the first soundproof plate 11 and the second soundproof plate 12 have clearance openings 121 for the flexible hose 8 to pass through. The nozzle 81 is connected to one end of the flexible hose 8 and faces directly below the second drill base 2. A water pipe connector 82 is installed at the other end of the flexible hose 8 for easy connection to an external water source. Additionally, each first drill blade 5 is equipped with a corresponding reinforcing nozzle. The rod 9 is used to increase the strength of the first drill bit 5. The outer wall of the second drill base 2 is provided with a groove 21 along its own height direction. The cross section of the groove 21 is T-shaped. The groove 21 corresponds to the first drill bit 5 one by one. A sliding block 22 is slidably installed on the groove 21. The sliding block 22 cooperates with the groove 21 and is slidably engaged in the groove 21. One end of the reinforcing rod 9 is hinged to the sliding block 22 and the other end is hinged to the first drill bit 5. Its hinge axis is parallel to the hinge axis of the corresponding first drill bit 5.

[0026] The working process of this embodiment is as follows: the multi-stage cylinder 71 drives the first drill bit 5 and the second drill bit 6 to open to a suitable angle. The drill bit 61 on the first drill bit 5 and the second drill bit 6 is used to excavate and drill the soil in the stratum, reducing the contact area between the drill bit and the stratum. The broken stones and soil will enter the cavity formed after the first drill bit 5 and the second drill bit 6 are opened, reducing the friction between the soil and stones and the outer wall of the drill bit. At the same time, the sound insulation pads 51 on the first drill bit 5 and the second drill bit 6 will also reduce friction and play a role in sound insulation. In addition to sound and noise reduction, when the first drill bit 5 and the second drill bit 6 are subjected to greater pressure, the spring 13 expands and contracts, and the first sound insulation plate 11 and the second sound insulation plate 12 absorb energy and reduce noise. The rigid folding ring 3 absorbs energy through deformation. Then, the driving cylinder 41 changes the angle of the second drill base 2 and changes the rotary drilling position, increasing the probability of drilling through the formation. When the drill bit cannot penetrate the formation, it avoids dry grinding between the drill bit and the formation, and reduces noise as much as possible. Overall, it will have a good effect of quieting and noise reduction.

[0027] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rotary drilling bit for construction based on silent and noise-reducing technology, characterized in that: The system includes a first drill bit (1), a second drill bit (2), a rigid folding ring (3), a first sound insulation plate (11), a second sound insulation plate (12), a spring (13), a connector (4), a first drill bit (5), a second drill bit (6), and a drive component (7). The first drill bit (1) and the second drill bit (2) are coaxially arranged and their opposing surfaces are open. The rigid folding ring (3) is coaxially arranged between the first drill bit (1) and the second drill bit (2) and is fixedly connected to both of them. The first sound insulation plate (11) is fixedly arranged on the bottom wall of the opening of the first drill bit (1). The second sound insulation plate (12) is slidably arranged in the opening of the first drill bit (1). The spring (13) is arranged between the first sound insulation plate (11) and the second sound insulation plate (12). One end of 13) is fixedly connected to the first sound insulation plate (11), and the other end is fixedly connected to the second sound insulation plate (12). The connector (4) is used to connect the second sound insulation plate (12) and the second drill base (2). The first drill blade (5) is evenly arranged with multiple blades along the circumference of the second drill base (2) and corresponds one-to-one with the second drill blade (6). One end of the first drill blade (5) is hinged to the second drill base (2), and the other end is hinged to one end of the second drill blade (6). The driving component (7) is arranged on the second drill base (2) and is used to drive the other end of all the second drill blades (6) away from or close to the second drill base (2), thereby driving the first drill blade (5) and the second drill blade (6) to open or close. The side of the first drill blade (5) and the second drill blade (6) facing away from the drilling soil is fixedly provided with a sound insulation pad (51).

2. The rotary drilling bit for construction based on silent noise reduction as described in claim 1, characterized in that: The connector (4) includes a drive cylinder (41), and multiple drive cylinders (41) are evenly arranged along the circumference of the first drill base (1). The cylinder body of each drive cylinder (41) is ball-hinged to the second sound insulation plate (12), and the other end is ball-hinged to the bottom wall of the opening of the second drill base (2).

3. The rotary drilling bit for construction based on silent noise reduction as described in claim 1, characterized in that: The drive unit (7) includes a multi-stage cylinder (71), which is disposed in the opening of the second drill base (2). The piston rod of the multi-stage cylinder (71) slides out of the second drill base (2), and the piston rod of the multi-stage cylinder (71) is hinged to the second drill blade (6).

4. The rotary drilling bit for construction based on silent noise reduction as described in claim 1, characterized in that: The wall of the first drill base (1) is filled with a sound-absorbing plate (14).

5. The rotary drilling bit for construction based on silent noise reduction as described in claim 1, characterized in that: It also includes a hose (8) and a nozzle (81). The hose (8) passes through the first drill base (1) and the second drill base (2). The nozzle (81) is connected to one end of the hose (8) and is directly below the second drill base (2). The other end of the hose (8) is provided with a water pipe connector (82).

6. The rotary drilling bit for construction based on silent noise reduction as described in claim 1, characterized in that: Each of the first drill bits (5) is provided with a reinforcing rod (9). The outer wall of the second drill base (2) is provided with a sliding groove (21) along its own height direction. The sliding groove (21) corresponds one-to-one with the first drill bit (5). A sliding block (22) is slidably provided on the sliding groove (21). The sliding block (22) is slidably engaged in the sliding groove (21). One end of the reinforcing rod (9) is hinged to the sliding block (22), and the other end is hinged to the first drill bit (5).

7. The rotary drilling bit for construction based on silent noise reduction as described in claim 1, characterized in that: The first sound insulation plate (11) has a receiving groove (111) on the side near the second sound insulation plate (12), and the end of the spring (13) away from the second sound insulation plate (12) is fixedly set on the bottom wall of the receiving groove (111).

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