Drilling and spraying device for pile machine
By installing a semi-split bearing and casing on the outer ring of the pile driver's drill rod, the problems of heat and dust during pile driver drilling have been solved, achieving efficient cooling and dust removal, and improving the working environment and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG POWER ENG
- Filing Date
- 2025-03-14
- Publication Date
- 2026-05-08
AI Technical Summary
The heat and dust generated during pile drilling affect drilling efficiency and safety. Traditional cooling and dust removal methods are ineffective and waste water resources, posing a risk of environmental pollution.
A drilling spray device for pile drivers is designed. By installing a semi-split bearing and sleeve on the outer ring of the drill rod, and equipping it with a semi-circular water pipe and a spray nozzle, water mist can be evenly sprayed onto the drilling area to cool down and remove dust.
It effectively reduces dust generated during drilling, improves the working environment, increases drilling efficiency and safety, and avoids water waste and environmental pollution.
Smart Images

Figure CN224214134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling spray technology for pile drivers, specifically a drilling spray device for pile drivers. Background Technology
[0002] Piling machines are divided into various types, such as hammer pile drivers and rotary drilling pile drivers. During pile drilling operations, the high-speed rotation of the drill rod and its penetration into the ground, or the hammer pile driver's hammering action, generates a large amount of heat and dust. This not only affects drilling efficiency but also causes severe wear on the drill rod and drill bit, and even threatens the health and safety of the workers. Traditional cooling and dust removal methods, such as spraying water directly onto the drilling area, while having some effect, are often ineffective and easily lead to water waste and environmental pollution. To effectively eliminate the dust generated by down-the-hole hammers in rock drilling, we propose a pile driver drilling spray device to solve the above-mentioned potential problems. Utility Model Content
[0003] The purpose of this utility model is to provide a pile driver drilling spray device to address the shortcomings of the existing technology and solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a drilling spray device for a pile driver, comprising a drill rod, wherein a first semi-split bearing and a second semi-split bearing are installed on the outer ring of the drill rod, a first semi-circular sleeve is provided on the outer ring of the first semi-split bearing, and a second semi-circular sleeve is provided on the outer ring of the second semi-split bearing, and a semi-circular water pipe is installed inside both the first and second semi-circular sleeves, and a spray nozzle is installed at the lower part of each of the semi-circular water pipes installed inside the first and second semi-circular sleeves, respectively penetrating the first and second semi-circular sleeves and extending to the lower part.
[0005] As a preferred technical solution of this utility model, the first half-split bearing and the second half-split bearing are matched, that is, they can be combined to form a complete split bearing, and a down-the-hole hammer is installed at the bottom end of the drill rod.
[0006] As a preferred embodiment of this utility model, mounting plates are welded to both sides of the first semicircular sleeve and both sides of the second semicircular sleeve, and mounting holes are provided at the upper and lower parts of the mounting plates.
[0007] As a preferred embodiment of this utility model, the mounting plate installed on the first semicircular sleeve and the mounting plate installed on the second semicircular sleeve are installed by bolts and nuts.
[0008] As a preferred embodiment of this utility model, an installation pipe is welded to one side of the second semicircular sleeve, which penetrates and extends into the interior of the semicircular water pipe installed inside the second semicircular sleeve, and a flexible hose is fixedly installed at one end of the installation pipe located outside the second semicircular sleeve.
[0009] As a preferred embodiment of this utility model, guide rods are welded to the upper and lower parts of both sides of the first semicircular sleeve, and guide holes for inserting guide rods are provided on the upper and lower parts of both sides of the second semicircular sleeve.
[0010] As a preferred technical solution of this utility model, both ends of the semi-circular water pipe installed inside the first semi-circular sleeve and the second semi-circular sleeve are equipped with sealing rings. The upper and lower parts of the inner rings of the first semi-circular sleeve and the second semi-circular sleeve are welded with cover plates, and the cover plates are respectively located at the upper and lower parts of the split bearing.
[0011] Compared with the prior art, this utility model provides a drilling spray device for pile drivers, which has the following beneficial effects:
[0012] 1. This is a pile driver drilling spray device, which includes a spray nozzle, a semi-circular water pipe, an installation pipe, and a hose. When the pile driver is started, the drill rod begins to rotate and drives the down-the-hole hammer to perform drilling operations. Alternatively, the pile driver can hammer the drill rod. Water enters the semi-circular water pipe through the hose and installation pipe and is evenly sprayed onto the drilling area through the spray nozzle. As the drilling operation proceeds, the spray nozzle continuously sprays water mist onto the drilling area to achieve the effects of cooling and dust removal, reduce the dust generated during drilling, and improve the working environment.
[0013] 2. This type of drilling spray device for pile drivers, by setting up split bearings, semi-circular sleeves, and mounting plates, installs the first and second semi-split bearings on the outer ring of the drill rod, so that the two match and form a complete split bearing. The first and second semi-circular sleeves are respectively installed on the outer rings of the first and second semi-split bearings. Precise positioning is achieved through guide rods and guide holes. The mounting plate is fixed with bolts and nuts, so that the first and second semi-circular sleeves are firmly installed, achieving the purpose of easy installation. Compared with the traditional method, which requires the spray device to be installed before installing the down-the-hole hammer on the drill rod, which is more troublesome, and the down-the-hole hammer needs to be removed and reinstalled when replacing it, which is also inconvenient to operate. At the same time, it can also be adapted to hammer-type pile drivers or rotary pile drivers. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a side view of the first semicircular sleeve structure of this utility model;
[0016] Figure 3 This is a side view of the second semicircular sleeve structure of this utility model.
[0017] Reference numerals: 1. Drill pipe; 2. Down-the-hole hammer; 3. Mounting plate; 4. First semi-circular sleeve; 5. Second semi-circular sleeve; 6. Mounting pipe; 7. Hose; 8. Spray nozzle; 9. Cover plate; 10. Semi-circular water pipe; 11. Guide rod; 12. First semi-split bearing; 13. Sealing ring; 14. Second semi-split bearing; 15. Guide hole. Detailed Implementation
[0018] 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.
[0019] Please see Figures 1-3 In this embodiment: a pile driver drilling spray device mainly includes a drill rod 1, a down-the-hole hammer 2, a first semi-split bearing 12, a second semi-split bearing 14, a first semi-circular sleeve 4, a second semi-circular sleeve 5, a semi-circular water pipe 10, a spray nozzle 8, a mounting plate 3, a mounting pipe 6, a hose 7, a guide rod 11, a guide hole 15, a sealing ring 13, and a cover plate 9, etc.
[0020] Drill rod 1: As the main component for drilling, it has a down-the-hole hammer 2 installed at its bottom for drilling operations.
[0021] First split bearing 12 and second split bearing 14: These two bearings are matched and can be combined to form a complete split bearing for supporting the drill pipe 1 and allowing it to rotate.
[0022] First semicircular sleeve 4 and second semicircular sleeve 5: These two sleeves are respectively installed on the outer ring of the first semi-split bearing 12 and the second semi-split bearing 14 to fix the semicircular water pipe 10 and the spray nozzle 8.
[0023] Semicircular water pipe 10: Installed inside the first semicircular sleeve 4 and the second semicircular sleeve 5, used for transporting water.
[0024] Spray nozzle 8: Installed at the lower part of the semi-circular water pipe 10, it is used to spray water mist through the spray nozzle 8 to achieve the dust suppression effect.
[0025] Mounting plate 3: Welded to both sides of the first semicircular sleeve 4 and the second semicircular sleeve 5, used to fix the spraying device on the pile driver. Mounting holes are provided on the upper and lower parts of the mounting plate 3 to facilitate the installation of bolts and nuts.
[0026] Installation pipe 6 and hose 7: Installation pipe 6 is welded to one side of the second semi-circular sleeve 5 and extends into the interior of the semi-circular water pipe 10 for connecting hose 7, which is used to deliver water into the semi-circular water pipe 10.
[0027] Guide rod 11 and guide hole 15: Guide rod 11 is welded to the upper and lower parts of both sides of the first semicircular sleeve 4, and guide hole 15 is opened at the corresponding position of the second semicircular sleeve 5, so as to ensure accurate alignment of the first semicircular sleeve 4 and the second semicircular sleeve 5 during installation.
[0028] Sealing ring 13: Installed at both ends of the semi-circular water pipe 10 to prevent water leakage.
[0029] Cover plate 9: Welded to the upper and lower parts of the inner rings of the first semicircular sleeve 4 and the second semicircular sleeve 5, respectively, located at the upper and lower parts of the split bearing, and used to protect the split bearing.
[0030] The working principle and usage process of this utility model are as follows: A pile driver drilling spray device is used. A first semi-split bearing 12 and a second semi-split bearing 14 are installed on the outer ring of the drill rod 1, matching them to form a complete split bearing. A first semi-circular sleeve 4 and a second semi-circular sleeve 5 are respectively installed on the outer ring of the first semi-split bearing 12 and the second semi-split bearing 14. Precise positioning is achieved through a guide rod 11 and a guide hole 15. Bolts and nuts are used to fix the mounting plate 3, ensuring a stable installation of the first semi-circular sleeve 4 and the second semi-circular sleeve 5. A hose 7 is connected to the mounting pipe 6, allowing water to smoothly enter the semi-circular water pipe 10. Sealing rings 13 are placed at both ends of the water pipe 10 to improve the sealing between the two semi-circular water pipes 10. The piling machine is started, the drill rod 1 begins to rotate and drives the down-the-hole hammer 2 to perform drilling operations, or the piling machine can hammer the drill rod 1. The water source enters the semi-circular water pipe 10 through the hose 7 and the installation pipe 6, and is evenly sprayed into the drilling area through the spray nozzle 8. As the drilling operation proceeds, the spray nozzle 8 continuously sprays water mist into the drilling area to achieve the effects of cooling and dust removal, reduce the dust generated during drilling, and improve the working environment. After the drilling operation is completed, the water source is turned off, the connection between the hose 7 and the installation pipe 6 is disconnected, the semi-circular sleeve and bearing are disassembled, and they are cleaned and maintained for the next use.
[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A drilling spraying device for pile drivers, comprising a drill rod (1), characterized in that: The drill rod (1) is equipped with a first semi-split bearing (12) and a second semi-split bearing (14) on its outer ring. The first semi-split bearing (12) is provided with a first semi-circular sleeve (4) on its outer ring, and the second semi-split bearing (14) is provided with a second semi-circular sleeve (5) on its outer ring. The first semi-circular sleeve (4) and the second semi-circular sleeve (5) are both equipped with semi-circular water pipes (10). The lower part of the semi-circular water pipes (10) installed in the first semi-circular sleeve (4) and the second semi-circular sleeve (5) is equipped with a spray nozzle (8) that passes through the first semi-circular sleeve (4) and the second semi-circular sleeve (5) and extends to the lower part.
2. The pile driver drilling spraying device according to claim 1, characterized in that: The first half-split bearing (12) and the second half-split bearing (14) are matched together to form a complete split bearing, and a down-the-hole hammer (2) is installed at the bottom end of the drill rod (1).
3. The pile driver drilling spraying device according to claim 1, characterized in that: Mounting plates (3) are welded to both sides of the first semicircular sleeve (4) and both sides of the second semicircular sleeve (5), and mounting holes are provided on the upper and lower parts of the mounting plates (3).
4. The pile driver drilling spraying device according to claim 1, characterized in that: The mounting plate (3) installed on the first semicircular sleeve (4) and the mounting plate (3) installed on the second semicircular sleeve (5) are installed by bolts and nuts.
5. A pile driver drilling spraying device according to claim 1, characterized in that: An installation pipe (6) is welded to one side of the second semi-circular sleeve (5) and extends through and into the interior of the semi-circular water pipe (10) installed inside the second semi-circular sleeve (5). A flexible hose (7) is fixedly installed at one end of the installation pipe (6) located outside the second semi-circular sleeve (5).
6. The pile driver drilling spraying device according to claim 1, characterized in that: Guide rods (11) are welded to the upper and lower parts of both sides of the first semicircular sleeve (4), and guide holes (15) are provided on the upper and lower parts of both sides of the second semicircular sleeve (5) for the guide rods (11) to be inserted.
7. A pile driver drilling spraying device according to claim 1, characterized in that: Both ends of the semicircular water pipe (10) installed inside the first semicircular sleeve (4) and the second semicircular sleeve (5) are equipped with sealing rings (13). The upper and lower parts of the inner rings of the first semicircular sleeve (4) and the second semicircular sleeve (5) are welded with cover plates (9), and the cover plates (9) are located at the upper and lower parts of the split bearing, respectively.