A modular sound barrier for rotary drilling rigs

Abstract

The purpose of this invention is to provide a sound barrier for a modular rotary drilling rig, which reduces noise during both soil dumping and drilling operations. To achieve the above objective, the solution of this invention is to provide a sound barrier for a modular rotary drilling rig, comprising: a sound barrier and a limiting device disposed therein, the limiting device abutting against the drill bit and being limited by the drill bit and passed through by the drill rod and movable along the direction of the drill rod, the sound barrier being fixedly connected to the limiting device, and the sound barrier being a cylindrical structure that runs vertically through the rig and has sound-absorbing and insulating material on its sides.

Description

Technical Field

[0001] This invention relates to the field of construction operations, and in particular to a sound barrier for a modular rotary drilling rig. Background Technology

[0002] Currently, rotary drilling rigs are the construction machinery that contributes the most noise on construction sites, and the enormous noise they emit has been criticized by on-site construction workers and nearby residents. The noise level is highest during the soil dumping operation. Most existing methods focus on noise reduction during drilling, but do not address the noise during soil dumping; or they reduce the noise from the rotary drilling rig's power head, but do not address the actual noise source during soil dumping.

[0003] During operation, including soil dumping and drilling, the drill bit generates a lot of noise, which needs to be isolated by sound barriers. However, traditional sound barriers may obscure the drill bit during soil dumping, making it impossible for operators to observe the drill bit. When drilling, the sound barrier also needs to be separated from the drill bit.

[0004] CN216551941U discloses a noise reduction barrier for a rotary drilling rig, including a rotary drilling rig, a drill rod on the rotary drilling rig, a drill bit fixedly mounted at the bottom of the drill rod, a noise reduction sleeve fitted on the outer side of the bottom of the drill rod, the noise reduction sleeve being composed of a left sleeve body and a right sleeve body, the left sleeve body and the right sleeve body being connected by a hinge, and a fixing component being provided on the front side of the noise reduction sleeve, the left sleeve body and the right sleeve body being quickly fixedly connected by the fixing component.

[0005] CN215369713U discloses a noise reduction barrier for rotary drilling rigs, comprising a first semicircular ring and a second semicircular ring located to the right of the first semicircular ring. Two connecting plates are symmetrically arranged on the right side of the first semicircular ring. Two first slots adapted to the connecting plates are opened on the left side of the second semicircular ring. A first screw is fixedly connected to each connecting plate. A second slot adapted to the first screw is opened on the second semicircular ring. A nut is threaded onto the outer wall of the first screw, and the nut abuts against the second semicircular ring. A sealing assembly is provided on the lower side of the first and second semicircular rings, and a reinforcing assembly is provided on the upper side of the first and second semicircular rings. The sealing assembly includes a first semicylinder fixedly connected to the bottom of the first semicircular ring and a second semicylinder fixedly connected to the bottom of the second semicircular ring. With the cooperation of the sound-insulating cotton, the first semicylinder, and the second semicylinder, the noise generated by the collision between the drill bit and the soil is reduced.

[0006] However, both of the above solutions are only applicable to drilling conditions. Therefore, a completely new design is needed: a sound barrier with separation function to address the two different conditions of drilling and soil throwing.

[0007] Therefore, providing a modular sound barrier for rotary drilling rigs specifically designed for construction operations is an urgent technical problem to be solved. Summary of the Invention

[0008] The purpose of this invention is to provide a modular sound barrier for rotary drilling rigs, which reduces noise during both soil dumping and drilling operations.

[0009] To achieve the above objectives, the present invention provides a sound barrier for a modular rotary drilling rig, comprising: a sound barrier and a limiting device disposed therein, the limiting device abutting against the drill bit and being limited by the drill bit and passed through by the drill rod and movable along the direction of the drill rod, the sound barrier being fixedly connected to the limiting device, and the sound barrier being a cylindrical structure that runs vertically through the top and bottom and has sound-absorbing and sound-insulating material on its sides.

[0010] Furthermore, the limiting device includes a slanted rod and a circular ring device, the head of the slanted rod is connected to the edge of the circular ring device, the circular ring device is passed through by a drill rod, the tail of the slanted rod is connected to the sound barrier, and the number of slanted rods is greater than 3.

[0011] Furthermore, the ring device includes a first ring, a second ring, and a third ring, the heights of the first ring, the second ring, and the third ring on the horizontal plane decrease sequentially, the first ring and the third ring are fixedly connected by a plurality of vertical rods, and the second ring is connected to the first ring and the diagonal rod respectively.

[0012] Furthermore, the first ring and the second ring are connected by an elastic element.

[0013] Furthermore, the sound barrier includes a frame and sound-absorbing and insulating material, the frame being connected to diagonal braces, and the sound-absorbing and insulating material being attached to the outside of the frame.

[0014] Furthermore, the sound-absorbing and sound-insulating material is divided into several unit blocks, which are connected by Velcro.

[0015] Furthermore, the skeleton is divided into several unit blocks, which are detachably connected to each other.

[0016] Furthermore, the upper and lower parts of the barrier shown have inward-curving angles to enhance the noise reduction effect.

[0017] Advantages of this invention:

[0018] 1. The sound barrier and drill bit are designed to be separate, which is suitable not only for the soil-throwing condition of rotary drilling rigs, but also for the soil-drilling condition.

[0019] 2. The sound barrier moves with the drill bit, which can effectively shield the sound source when the drill bit throws soil, while avoiding obstructing the operator's observation of the drill bit's status and affecting construction.

[0020] 3. The top and bottom ends of the sound barrier are structurally optimized to improve the noise reduction effect.

[0021] 4. The modular and detachable sound barrier structure solves the problems of troublesome installation and disassembly, and the space occupied during transportation. Attached Figure Description

[0022] Figure 1 This is a front view of a sound barrier for a modular rotary drilling rig provided by the present invention;

[0023] Figure 2 This is a top view of a sound barrier for a modular rotary drilling rig provided by the present invention;

[0024] Figure 3 This is a cross-sectional view along AA of a modular rotary drilling rig sound barrier provided by the present invention;

[0025] Figure 4 This is a cross-sectional view along BB of a modular rotary drilling rig sound barrier provided by the present invention;

[0026] Figure 5 This is a schematic diagram of a sound barrier for a modular rotary drilling rig used in soil dumping operations, provided by the present invention.

[0027] Figure 6 This is a schematic diagram of a sound barrier for drilling operations of a modular rotary drilling rig provided by the present invention.

[0028] As shown in the figure, 1-sound barrier, 2-slanted rod, 3-1-first ring, 3-2-second ring, 3-3-third ring, 4-elastic element, 5-vertical rod, 6-Velcro. Detailed Implementation

[0029] 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.

[0030] like Figures 1-4 As shown, a modular rotary drilling rig sound barrier includes: a sound barrier 1 and a limiting device disposed inside it. The limiting device abuts against the drill bit, is limited by the drill bit, is passed through by the drill rod, and can move along the direction of the drill rod. The sound barrier 1 is fixedly connected to the limiting device. The sound barrier 1 is a cylindrical structure that runs vertically through the top and bottom and has sound-absorbing and sound-insulating material on its sides.

[0031] The limiting device includes a diagonal rod 2 and a circular ring device. The head of the diagonal rod 2 is connected to the edge of the circular ring device, the circular ring device is passed through by a drill rod, and the tail of the diagonal rod 2 is connected to the sound barrier 1. The number of diagonal rods 2 is 4. The circular ring device includes a first circular ring 3-1, a second circular ring 3-2, and a third circular ring 3-3. The heights of the first circular ring 3-1, the second circular ring 3-2, and the third circular ring 3-3 on the horizontal plane decrease sequentially. The first circular ring 3-1 and the third circular ring 3-3 are fixedly connected by several vertical rods 5. The second circular ring 3-2 is connected to the first circular ring 3-1 and the diagonal rod 2 respectively. The first circular ring 3-1 and the second circular ring 3-2 are connected by an elastic element 4.

[0032] The sound barrier 1 includes a frame and sound-absorbing and insulating material. The frame is connected to the diagonal rod 2, and the sound-absorbing and insulating material is attached to the outside of the frame. The sound-absorbing and insulating material is divided into several unit blocks, which are connected by Velcro 6. The frame is also divided into several unit blocks, which are detachably connected. The number of frame unit blocks and sound-absorbing and insulating material unit blocks can be freely adjusted according to the size of the drill bit.

[0033] Specific work process:

[0034] like Figure 5 As shown, during the soil dumping operation, the third ring 3-3 overlaps above the drill bit. The limiting device moves up and down with the drill bit, and through the contact between the inclined rod 2 and the drill bit, the center of the sound barrier 1 always coincides with the sound source, effectively reducing the noise of the main sound source above the drill bit. At the same time, it does not cover the lower part of the drill bit, making it convenient for the operator to observe the status of the drill bit.

[0035] like Figure 6 As shown, during the drilling operation, the sound barrier 1 is blocked by the soil, which causes the limiting device to leave the drill bit and stay on the ground to form a ground sound barrier 1, which effectively isolates the noise transmitted from the borehole.

[0036] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A sound barrier for a modular rotary drilling rig, characterized in that, include: The sound barrier (1) and the limiting device disposed therein, the limiting device abutting against the drill bit and being limited by the drill bit and being passed through by the drill rod and movable along the direction of the drill rod, the sound barrier (1) being fixedly connected to the limiting device. The sound barrier (1) is a cylindrical structure that runs vertically through the top and bottom and has sound-absorbing and sound-insulating materials on its sides; The limiting device includes a slanted rod (2) and a circular ring device. The head of the slanted rod (2) is connected to the edge of the circular ring device. The circular ring device is passed through by a drill rod. The tail of the slanted rod (2) is connected to the sound barrier (1). The number of slanted rods (2) is greater than 3. During the soil dumping operation, the limiting device moves up and down with the drill bit, and through the contact between the inclined rod (2) and the drill bit, the center of the sound barrier (1) always coincides with the source of noise, which reduces the noise of the sound source at the top of the drill bit, while not covering the bottom of the drill bit, making it convenient to observe the status of the drill bit. During drilling operations, the sound barrier (1) is blocked by the soil, which causes the limiting device to leave the drill bit and remain on the ground to form a ground sound barrier, which isolates the noise transmitted from the borehole. The ring device includes a first ring (3-1), a second ring (3-2), and a third ring (3-3). The heights of the first ring (3-1), the second ring (3-2), and the third ring (3-3) on the horizontal plane decrease sequentially. The first ring (3-1) and the third ring (3-3) are fixedly connected by several vertical rods (5). The second ring (3-2) is connected to the first ring (3-1) and the inclined rod (2) respectively. The first ring (3-1) and the second ring (3-2) are connected by an elastic element (4).

2. The sound barrier for a modular rotary drilling rig according to claim 1, characterized in that, The sound barrier (1) includes a frame and sound-absorbing and sound-insulating material. The frame is connected to the diagonal rod (2), and the sound-absorbing and sound-insulating material is attached to the outside of the frame.

3. The sound barrier for a modular rotary drilling rig according to claim 2, characterized in that, The sound-absorbing and insulating material is divided into several unit blocks, which are connected by Velcro (6).

4. The sound barrier for a modular rotary drilling rig according to claim 3, characterized in that, The skeleton is divided into several unit blocks, which can be detachably connected.

5. A sound barrier for a modular rotary drilling rig according to claim 4, characterized in that, The upper and lower parts of the sound barrier (1) have inward folds, which improve the noise reduction effect.

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