Dust reduction mechanism for hydraulic rock drill
Patent Information
- Application Number
- CN202522624839.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-11
AI Technical Summary
Existing dust suppression mechanisms for hydraulic rock drills rely on spraying water mist to reduce dust. However, the water mist settles on the equipment, affecting its operation and resulting in poor dust suppression effectiveness.
By combining blowing and spraying, the water mist sprayed is affected by the wind and its falling trajectory is changed, causing the dust to settle on the rock wall. The combination of ring-shaped water spray pipes and spray boxes enhances the coverage and improves the dust suppression efficiency.
It reduces the amount of dust settling on equipment, improves dust settling efficiency, facilitates equipment maintenance and personnel construction, and is suitable for enclosed places such as tunnels and mines.
Smart Images
Figure CN224925847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dust suppression devices, specifically a dust suppression mechanism for a hydraulic rock drill. Background Technology
[0002] Hydraulic rock drills are devices that use high-pressure hydraulic oil to drive a piston, which in turn drives a drill rod to impact rock for rock breaking or drilling. They are commonly used in tunnel excavation and mineral resource mining. The impact of hydraulic rock drills generates a large amount of dust, especially in tunnels or mines. This flying dust not only hinders on-site operations but also harms the health of workers. Therefore, rock drills are usually equipped with dust suppression systems. Currently, the most common dust suppression system is water mist spraying. After the water mist absorbs the dust, it usually settles in free fall, adhering to the equipment and affecting its operation, leading to some deficiencies. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a dust suppression mechanism for hydraulic rock drills. It adopts a combination of blowing and spraying to suppress dust. The water mist sprayed out changes the falling trajectory of the dust after contact with it and is affected by the wind, so that the dust settles on the rock wall, thereby reducing the amount of dust settling outside the equipment, making the equipment easier to maintain and use. Moreover, the spraying component has a good water output and coverage area, ensuring the dust settling efficiency and effect, which can effectively solve the problems in the background technology.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a dust suppression mechanism for a hydraulic rock drill, comprising a positioning frame, a support frame rotatably mounted on the upper side of the positioning frame, a fan cylinder rotatably mounted inside the support frame, a fan unit installed inside the fan cylinder, a filter assembly installed at one end of the fan cylinder behind the fan unit, and a protective assembly installed at the other end of the fan cylinder in front of the fan unit. The protective assembly includes a protective net fixed inside the fan cylinder, a spray assembly provided on the side of the protective net, the spray assembly including an annular water spray pipe installed at the connection between the protective net and the fan cylinder, a water inlet pipe communicating with its inner cavity installed on the side of the annular water spray pipe, and several sets of atomizing nozzles communicating with its inner cavity installed on the side of the annular water spray pipe.
[0005] As a preferred technical solution of this utility model, the spray assembly also includes a spray box, which is fixed in the middle of the side of the protective net. Several sets of atomizing nozzles communicating with its inner cavity are also installed on the side of the spray box. A connecting pipe communicating with its inner cavity is installed on the side of the annular spray pipe, and the end of the connecting pipe away from the annular spray pipe is fixed to the side of the spray box and communicates with the spray box.
[0006] As a preferred technical solution of this utility model, a positioning buckle is snapped onto the side of the connecting pipe, and the positioning buckle is adapted to the protective net.
[0007] As a preferred technical solution of this utility model, the filter assembly includes a filter screen laid flat at one end of the fan cylinder, and an annular buckle plate is provided on the side of the fan cylinder to snap and position the filter screen. Both the annular buckle plate and the filter screen are detachable.
[0008] As a preferred technical solution of this utility model, a steering motor assembly is installed on the side of the positioning frame, and the output shaft of the steering motor assembly is connected and fixed to the lower middle part of the support frame.
[0009] As a preferred technical solution of this utility model, an adjustment motor unit is installed on the side of the support frame, and the output shaft of the adjustment motor unit is connected and fixed to the middle of the side of the fan casing.
[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. The dust suppression mechanism for the hydraulic rock drill of this utility model first opens the spray assembly to spray water mist outwards during dust suppression. Then, the fan unit is controlled to blow air outwards. The airflow carries the sprayed water mist towards the dust. The movement trajectory of the dust after it encounters water and settles is affected by the wind force, which makes it easier to settle the dust on the rock wall, reducing the impact of dust settling on the equipment and making it easier to maintain and use the equipment. By reducing dust at the construction site, it facilitates the construction work of personnel.
[0011] 2. The dust suppression mechanism for the hydraulic rock drill of this utility model has an external water supply component that delivers water to the annular water spray pipe through the water inlet pipe. The water entering the annular water spray pipe is atomized by the atomizing nozzle and sprayed out to form water mist, which facilitates dust suppression operations at the construction site.
[0012] 3. In the example of the dust suppression mechanism for the hydraulic rock drill of this utility model, part of the water flow in the annular water spray pipe enters the spray box through the connecting pipe. The water flow in the spray box is sprayed out through the atomizing nozzle on its side. The water mist sprayed from the annular water spray pipe and the spray box covers the entire air outlet, which facilitates the airflow to move the water mist and contact the dust, thereby improving the dust suppression efficiency.
[0013] 4. In the example of the dust suppression mechanism for hydraulic rock drills of this utility model, the filter screen plays a filtering role during the operation of the fan unit, reducing the adhesion of dust to the outside of the fan unit and facilitating the use of the fan unit. The filter screen can be replaced after removing the annular buckle plate, which facilitates the use of this dust suppression mechanism. The use of the fan unit can also increase the airflow in the working environment, making it suitable for use in relatively enclosed places such as roadways and mines. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3This is a front view structural diagram of the present utility model; Figure 4 This is a schematic diagram of the spray assembly in this utility model; Figure 5 This is a schematic diagram of the structure of the wind turbine unit in this utility model.
[0015] In the diagram: 1. Positioning frame, 2. Support frame, 3. Fan cylinder, 4. Fan unit, 5. Filter screen, 6. Ring buckle plate, 7. Protective net, 8. Ring water spray pipe, 9. Atomizing nozzle, 10. Water inlet pipe, 11. Spray box, 12. Connecting pipe, 13. Positioning buckle, 14. Steering motor unit, 15. Adjusting motor unit. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-5 This utility model provides a technical solution: a dust suppression mechanism for a hydraulic rock drill, including a positioning frame 1. The positioning frame 1 is used for supporting and limiting the dust suppression mechanism. In use, the dust suppression mechanism can be installed on the rock drill or in other external working vehicles by bolts or anchor rods. A support frame 2 is rotatably installed on the upper side of the positioning frame 1. A fan cylinder 3 is rotatably installed inside the support frame 2. A fan unit 4 is installed inside the fan cylinder 3. A filter assembly located behind the fan unit 4 is installed at one end of the fan cylinder 3. A protective assembly located in front of the fan unit 4 is installed at the other end of the fan cylinder 3. The protective assembly includes a protective net 7 fixed inside the fan cylinder 3. A spray assembly is provided on the side of the protective net 7.
[0018] When using the dust suppression system, first turn on the spray unit to spray water mist outwards, then control the fan unit 4 to blow air outwards. The airflow carries the sprayed water mist towards the dust. The movement trajectory of the dust after it encounters water and settles is affected by the wind force, making it easier for the dust to settle on the rock wall. This reduces the impact of dust settling on the equipment and facilitates the maintenance and use of the equipment. By reducing dust at the construction site, it facilitates the construction work of personnel.
[0019] The spray assembly includes an annular water pipe 8, which is installed at the connection between the protective net 7 and the fan casing 3. An inlet pipe 10 communicating with the inner cavity of the annular water pipe 8 is installed on the side of the annular water pipe 8. Several sets of atomizing nozzles 9 communicating with the inner cavity of the annular water pipe 8 are installed on the side of the annular water pipe 8. The external water supply assembly delivers water to the annular water pipe 8 through the inlet pipe 10. The water entering the annular water pipe 8 is atomized by the atomizing nozzles 9 and sprayed out to form water mist, which facilitates dust suppression operations at the construction site.
[0020] The spray assembly also includes a spray box 11, which is fixed to the middle of the side of the protective net 7. Several sets of atomizing nozzles 9 connected to the inner cavity of the spray box 11 are also installed on the side of the spray box 11. Preferably, the atomizing nozzles 9 are set facing the annular water spray pipe 8, and the atomizing nozzles on the side of the annular water spray pipe 8 are set facing the front of the fan cylinder 3, which increases the spray area of the spray assembly. A connecting pipe 12 connected to the inner cavity of the annular water spray pipe 8 is installed on the side of the annular water spray pipe 8, and the end of the connecting pipe 12 away from the annular water spray pipe 8 is fixed to the side of the spray box 11 and connected to the spray box 11. Part of the water flow in the annular water spray pipe 8 enters the spray box 11 through the connecting pipe 12. The water flow in the spray box 11 is sprayed out through the atomizing nozzles 9 on its side. The water mist sprayed from the annular water spray pipe 8 and the spray box 11 covers the entire air outlet, which facilitates the airflow to move the water mist and contact the dust, thereby improving the dust reduction efficiency.
[0021] A positioning buckle 13 is attached to the side of the connecting pipe 12. The positioning buckle 13 is matched with the protective net 7. The positioning buckle 13 fixes the connecting pipe 12 to the protective net 7, which facilitates the positioning of the connecting pipe 12 and prevents the connecting pipe 12 from repeatedly swinging due to the wind force of the fan unit 4 and breaking off from the annular spray pipe 8 or the spray box 11.
[0022] The filter assembly includes a filter screen 5 laid flat at one end of the blower casing 3. An annular buckle plate 6 is provided on the side of the blower casing 3 to snap and position the filter screen 5. Both the annular buckle plate 6 and the filter screen 5 are detachable. During the operation of the blower unit 4, the filter screen 5 plays a filtering role, reducing the adhesion of dust to the outside of the blower unit 4 and facilitating the use of the blower unit 4. The filter screen 5 can be replaced after removing the annular buckle plate 6, which facilitates the use of this dust suppression mechanism. The use of the blower unit 4 can also increase the airflow in the working environment and is suitable for use in relatively enclosed places such as tunnels and mines.
[0023] A steering motor assembly 14 is installed on the side of the positioning frame 1. The output shaft of the steering motor assembly 14 is connected and fixed to the lower middle part of the support frame 2. The steering motor assembly 14 is controlled to drive the support frame 2 to rotate, which facilitates the left and right adjustment of the air outlet angle of the fan tube 3. Adjusting the air outlet angle facilitates the use of this dust suppression mechanism.
[0024] An adjustable motor unit 15 is installed on the side of the support frame 2. The output shaft of the adjustable motor unit 15 is connected and fixed to the middle of the side of the fan tube 3. The adjustable motor unit 15 is controlled to drive the fan tube 3 to rotate, so as to facilitate the up and down adjustment of the air outlet angle of the fan tube 3 and meet the needs of the dust suppression mechanism during operation.
[0025] The fan unit 4, steering motor unit 14, and regulating motor unit 15 used in this utility model are all commonly used electronic components in the prior art. Their working methods and circuit structures are all known technologies. The operation of electronic components such as the fan unit 4, steering motor unit 14, and regulating motor unit 15 is controlled by setting a switch group or PLC controller outside the fan casing 3. This method is a common technical means used by technicians and will not be described in detail here.
[0026] The dust suppression mechanism of this hydraulic rock drill uses a combination of blowing and spraying to suppress dust. The water mist sprayed out comes into contact with the dust and is affected by the wind to change its falling trajectory, causing the dust to settle on the rock wall. This reduces the amount of dust settling outside the equipment, making the equipment easier to maintain and use. In addition, the spraying components have good water output and coverage, ensuring dust settling efficiency and effect.
[0027] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A dust suppression mechanism for a hydraulic rock drill, comprising a positioning frame (1), characterized in that: A support frame (2) is rotatably mounted on the upper side of the positioning frame (1). A fan cylinder (3) is rotatably mounted inside the support frame (2). A fan unit (4) is installed inside the fan cylinder (3). A filter assembly located behind the fan unit (4) is installed at one end of the fan cylinder (3). A protective assembly located in front of the fan unit (4) is installed at the other end of the fan cylinder (3). The protective assembly includes a protective net (7) fixed inside the fan cylinder (3). A spray assembly is provided on the side of the protective net (7). The spray assembly includes an annular water spray pipe (8). The annular water spray pipe (8) is installed at the connection between the protective net (7) and the fan cylinder (3). A water inlet pipe (10) communicating with its inner cavity is installed on the side of the annular water spray pipe (8). Several sets of atomizing nozzles (9) communicating with its inner cavity are installed on the side of the annular water spray pipe (8).
2. The dust suppression mechanism for a hydraulic rock drill according to claim 1, characterized in that: The spray assembly also includes a spray box (11), which is fixed in the middle of the side of the protective net (7). The side of the spray box (11) is also equipped with several sets of atomizing nozzles (9) that communicate with its inner cavity. The side of the annular water pipe (8) is equipped with a connecting pipe (12) that communicates with its inner cavity. The end of the connecting pipe (12) away from the annular water pipe (8) is fixed to the side of the spray box (11) and communicates with the spray box (11).
3. The dust suppression mechanism for a hydraulic rock drill according to claim 2, characterized in that: The connecting pipe (12) is fitted with a positioning buckle (13) on its side, and the positioning buckle (13) is fitted and matched with the protective net (7).
4. The dust suppression mechanism for a hydraulic rock drill according to claim 1, characterized in that: The filter assembly includes a filter screen (5) laid flat at one end of the fan cylinder (3). The side of the fan cylinder (3) is provided with an annular buckle plate (6) for snapping and positioning the filter screen (5). Both the annular buckle plate (6) and the filter screen (5) are detachable.
5. The dust suppression mechanism for a hydraulic rock drill according to claim 1, characterized in that: The positioning frame (1) is equipped with a steering motor assembly (14) on its side, and the output shaft of the steering motor assembly (14) is connected and fixed to the lower middle part of the support frame (2).
6. The dust suppression mechanism for a hydraulic rock drill according to claim 1, characterized in that: The support frame (2) is equipped with an adjustment motor unit (15) on its side, and the output shaft of the adjustment motor unit (15) is connected and fixed to the middle of the side of the fan casing (3).