A lubrication device for a raise boring machine hoisting system

Abstract

This utility model relates to a lubrication device for a down-the-hole drill hoisting system, belonging to the field of mining equipment technology in the metallurgical industry. The technical solution is as follows: the bottom sprocket (7) and the top sprocket (9) are respectively fixed on the drill frame (12), and the bottom sprocket (7) and the top sprocket (9) are connected by a hoisting chain (6). The pressure sprocket (3) cooperates with the hoisting chain (6). The lubricating oil tank (1) is located above the pressure sprocket (3). The upper end of the oil dripping pipe (15) is connected to the bottom of the lubricating oil tank (1), and the lower end of the oil dripping pipe (15) faces the pressure sprocket (3). One end of the high-pressure air pipe (5) is connected to the air compressor (17), and the other end of the high-pressure air pipe (5) faces the bottom sprocket (7). An adjusting valve (2) is installed on the oil dripping pipe (15), and an air pipe valve (8) is installed on the high-pressure air pipe (5). The beneficial effects of this utility model are: ensuring the lubrication of the hoisting chain, and using high-pressure airflow to remove mineral powder on the sprocket and chain, avoiding grease splashing.

Description

Technical Field

[0001] This utility model relates to a lubrication device for a down-the-hole drill hoisting system, belonging to the technical field of mining equipment in the metallurgical industry. Background Technology

[0002] In mining drilling operations, down-the-hole (DH) drills play a crucial role as the core equipment. Taking the KQ200D DH drill as an example, its hoisting system consists of a hoisting motor, sprockets, and chains. However, the current lubrication of this hoisting system is worrisome. On the one hand, the equipment lacks a dedicated lubrication device, and the hoisting chain can only be lubricated manually by applying grease. This method not only wastes a large amount of grease but also significantly reduces its effectiveness due to uneven and untimely application. On the other hand, manually applied grease easily attracts mineral dust when the chain is running, which not only accelerates the wear of the chain and gears but also greatly increases the difficulty of cleaning the equipment. Especially in winter, manual grease application is extremely inconvenient in low-temperature environments, as the grease easily falls off, making timely lubrication difficult. This leads to a sharp increase in chain wear and frequent chain breakage, posing a significant risk to the normal operation of the equipment and personnel safety. Therefore, it is urgent to improve the lubrication system to ensure production safety and efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a lubrication device for a down-the-hole drill hoisting system, ensuring the lubrication of the hoisting chain and using high-pressure airflow to remove mineral powder from the sprockets and chain, preventing grease splashing, and solving the problems existing in the background art.

[0004] The technical solution of this utility model is:

[0005] A lubrication device for a down-the-hole drill rig lifting system includes a lubricating oil tank, a pressure sprocket, a lifting motor, a high-pressure air duct, a lifting chain, a bottom sprocket, a top sprocket, a rotary gearbox, a drill frame, an impactor drill bit, a dripping pipe, and an air compressor. The bottom sprocket and the top sprocket are respectively fixed on the drill frame and are connected by a lifting chain drive. The pressure sprocket cooperates with the lifting chain. The lubricating oil tank is located above the pressure sprocket. The upper end of the dripping pipe is connected to the bottom of the lubricating oil tank, and the lower end of the dripping pipe faces the pressure sprocket. One end of the high-pressure air duct is connected to the air compressor, and the other end of the high-pressure air duct faces the bottom sprocket.

[0006] The lubricating oil tank is fixed on the drill frame.

[0007] The lubricating oil tank is fixed to the drill frame at an angle.

[0008] The oil dripping pipe is equipped with a regulating valve, and the high-pressure air pipe is equipped with an air pipe valve.

[0009] The beneficial effects of this utility model are:

[0010] 1) Improved lubrication: The tilted lubrication tank automatically drips oil using the vibration of the drilling rig's impactor, providing stable lubrication to the sprockets. Compared to manual application, the lubrication time for key components is increased by 80%, effectively avoiding uneven and untimely issues caused by manual application. Oil can be precisely controlled according to working conditions by adjusting the valve, reducing lubrication waste by 50% under different operating intensities.

[0011] 2) Reduced equipment wear: Due to continuous and stable lubrication, the friction coefficient between the chain and the sprocket is reduced by 40%, the service life is extended by 50%, equipment maintenance costs and spare parts replacement frequency are reduced by 30%, and the high-pressure airflow drawn from the air compressor removes mineral powder during operation, reducing the wear rate of the hoisting system by 60%;

[0012] 3) Improved production efficiency: Due to reduced wear and improved lubrication, downtime caused by equipment failures is reduced by 40%, mining continuity is improved by 35%, and automatic lubrication reduces manual application workload by 70%, allowing operators to devote more energy to other production processes.

[0013] 4) Optimize cost management: Extend the service life of spare parts such as chains and sprockets, reduce the replacement frequency, reduce spare parts procurement costs by 30%, and reduce lubricant consumption by 40% through precise oil control;

[0014] 5) Improve equipment hygiene and aesthetics: High-pressure airflow removes mineral powder and automatic lubrication reduces grease waste and splashing, improving equipment surface cleanliness by 80%, fully meeting mining site management standards and enhancing the company's image. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention;

[0016] In the diagram: 1. Lubricating oil tank; 2. Adjusting valve; 3. Sprocket; 4. Lifting motor; 5. High-pressure air duct; 6. Lifting chain; 7. Bottom sprocket; 8. Air pipe valve; 9. Top sprocket; 10. Rotary gearbox; 11. Drill rod; 12. Drill frame; 13. Impact drill bit; 14. Dust hood; 15. Oil drip pipe; 16. Drill rig body; 17. Air compressor. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] See attached document Figure 1A lubrication device for a down-the-hole drill rig lifting system includes a lubricating oil tank 1, a pressure sprocket 3, a lifting motor 4, a high-pressure air duct 5, a lifting chain 6, a bottom sprocket 7, a top sprocket 9, a rotary gearbox 10, a drill frame 12, an impact drill bit 13, an oil dripping pipe 15, and an air compressor 17. The bottom sprocket 7 and the top sprocket 9 are respectively fixed on the drill frame 12 and are connected by the lifting chain 6. The pressure sprocket 3 cooperates with the lifting chain 6. The lubricating oil tank 1 is located above the pressure sprocket 3. The upper end of the oil dripping pipe 15 is connected to the bottom of the lubricating oil tank 1, and the lower end of the oil dripping pipe 15 faces the pressure sprocket 3. One end of the high-pressure air duct 5 is connected to the air compressor 17, and the other end of the high-pressure air duct 5 faces the bottom sprocket 7.

[0019] In this embodiment, refer to the appendix Figure 1 The lubrication system of the down-the-hole drilling rig includes a lubricating oil tank 1, an oil drip valve 2, a pressure sprocket 3, a lifting motor 4, a high-pressure air duct 5, a lifting chain 6, a bottom sprocket 7, an air pipe valve 8, a top sprocket 9, a rotary gearbox 10, a drill rod 11, a drill frame 12, a drill bit 13, and a dust collector 14, wherein:

[0020] Installation of Lubricating Oil Tank 1: Select a transparent material of appropriate specifications to make Lubricating Oil Tank 1, and install it at a predetermined position at a 45-degree angle to the drill frame 12 to ensure that the installation is firm and does not affect the normal operation of the drilling rig.

[0021] Installation of oil volume regulating valve 2 and oil drip pipe 12: Install oil volume regulating valve 2 at the bottom of lubricating oil tank 1 and connect oil drip pipe 12. Ensure that the oil pipe outlet is aligned with the lubrication parts of lifting chain 6 and pressure wheel 3, and that the oil pipe connection is tight and there is no oil leakage.

[0022] Installation of high-pressure air duct 4: High-pressure air duct 5 is led out from air compressor 17, and the air duct outlet is accurately installed at the bottom sprocket 7. The air duct is firmly fixed, and the valve 8 is easy to open and close.

[0023] Lubrication Operation: Before starting drilling operations with the down-the-hole drill, check the grease level in the lubrication tank 1 and replenish it promptly if necessary. During operation, control the amount of lubricating oil dripped by adjusting the oil flow regulating valve 2 according to the actual workload. Simultaneously, open the high-pressure air valve 8 to remove mineral powder from the bottom sprocket 7 and chain 6 using high-pressure airflow. After operation, close the oil flow regulating valve 2 and the high-pressure air valve 8. Regularly inspect and maintain the lubrication system and lifting system to ensure normal equipment operation.

Claims

1. A lubrication device for a raise boring machine hoist system, characterized by: The system includes a lubricating oil tank (1), a pressure sprocket (3), a lifting motor (4), a high-pressure air duct (5), a lifting chain (6), a bottom sprocket (7), a top sprocket (9), a rotary gearbox (10), a drill frame (12), an impact drill bit (13), an oil dripping pipe (15), and an air compressor (17). The bottom sprocket (7) and the top sprocket (9) are fixed on the drill frame (12) respectively. The bottom sprocket (7) and the top sprocket (9) are connected by a lifting chain (6). The pressure sprocket (3) cooperates with the lifting chain (6). The lubricating oil tank (1) is located above the pressure sprocket (3). The upper end of the oil dripping pipe (15) is connected to the bottom of the lubricating oil tank (1), and the lower end of the oil dripping pipe (15) faces the pressure sprocket (3). One end of the high-pressure air duct (5) is connected to the air compressor (17), and the other end of the high-pressure air duct (5) faces the bottom sprocket (7).

2. A lubrication device for a roof bolting system as claimed in claim 1, characterised in that: The lubricating oil tank (1) is fixed on the drill frame (12).

3. A lubrication device for a roof bolting system as claimed in claim 2, wherein: The lubricating oil tank (1) is fixed on the drill frame (12) at an angle.

4. A lubrication device for a roof bolting system as claimed in claim 1, characterised in that: An adjusting valve (2) is installed on the oil dripping pipe (15), and an air pipe valve (8) is installed on the high-pressure air pipe (5).

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