Pneumatic power device for roadway repairing machine

By cooling, filtering, drying, and silencing the pneumatic power unit of the tunnel repair machine, the noise problem of the pneumatic equipment was solved, the cleanliness and pressure stability of the air source were achieved, and the operating efficiency and safety of the equipment were improved.

CN224260475UActive Publication Date: 2026-05-19SHANGHAI KEMEI MECHANICAL & ELECTRICAL EQUIP MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI KEMEI MECHANICAL & ELECTRICAL EQUIP MFG CO LTD
Filing Date
2025-06-20
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing tunnel repair machines generate noise during transport due to the high air pressure when using pneumatic equipment.

Method used

A pneumatic power unit for a roadway repair machine was designed, including components such as an air compressor, aftercooler, air tank, filter, air dryer, triplet, solenoid valve, silencer pipe, silencer cup and silencer cotton. The air is cooled, filtered, dried and silenced to ensure that the air source is clean, dry and the pressure is stable. The noise is reduced by silencing and diverting the air in the power box.

Benefits of technology

It effectively reduces the noise of pneumatic equipment, ensures the cleanliness and pressure stability of the air source, and improves the operating efficiency and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pneumatic power device for a roadway repairing machine, which comprises a roadway repairing machine body, a power box is arranged at the rear end of the roadway repairing machine body, an air source pipe is arranged on the side face of the power box, and the other end of the air source pipe is connected with a pneumatic source. The pneumatic source comprises an air compressor, an after-cooler is arranged at the output end of the air compressor, an air tank is arranged at the output end of the after-cooler, and a filter is installed on the side face of the air tank. Compressed air treated by the device enters the silencing pipe in the power box through the electromagnetic valve, the air inlet channel and the silencing bowl in the silencing pipe are used for guiding and silencing airflow, meanwhile, the silencing cotton is used for absorbing and dispersing sound waves, and the compressed air subjected to silencing treatment enters the flow dividing mechanism and then enters the power box. Opening, closing and flow of the flow dividing pipes are accurately controlled through the controller, and compressed air is distributed to all working parts of the roadway repairing machine.
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Description

Technical Field

[0001] This utility model relates to the field of tunnel repair machine technology, and more specifically to a pneumatic power device for a tunnel repair machine. Background Technology

[0002] The roadway repair machine is a multi-functional device that integrates loading, crushing, and walking functions. It can be used for repair work after roadways are deformed by pressure. Coal mine roadway repair machines are mainly used in coal roadways, semi-coal-rock roadways, and full-rock roadways. They can perform daily maintenance operations such as crushing, excavating, loading, and shoveling on the roof, floor, and side plates of the roadway. They can also crush large rocks and coal blocks for transportation.

[0003] Existing tunnel repair machines using pneumatic equipment generate noise during transport due to the high air pressure. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pneumatic power device for a roadway repair machine, thereby solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic power device for a roadway repair machine, comprising: a roadway repair machine body, a power box provided at the rear end of the roadway repair machine body and an air source pipe provided on the side of the power box, a pneumatic source connected to the other end of the air source pipe, the pneumatic source including an air compressor and an aftercooler provided at the output end of the air compressor, an air tank provided at the output end of the aftercooler and a filter installed on the side of the air tank, an air dryer provided on the side of the filter and a triple unit connected to the side of the air dryer, a solenoid valve connected to the side of the triple unit and the solenoid valve connected to the air source pipe, a silencer pipe provided inside the power box and connecting flanges provided at both ends of the silencer pipe, a flow divider mechanism provided inside the power box and the silencer pipe connected to the flow divider mechanism through the connecting flanges, an air inlet provided inside the silencer pipe and several sets of silencer cups provided inside the air inlet, the silencer cups being conical in structure and evenly distributed, and sound-absorbing cotton provided in the outer interlayer of the silencer pipe.

[0006] In a preferred embodiment of this utility model, the triplet includes a pneumatic filter, a pressure reducing valve, and an oil mist lubricator.

[0007] In a preferred embodiment of this utility model, a base is provided between the muffler and the power box, and the base has an arc-shaped groove inside. The base is supported by an elastic material.

[0008] In a preferred embodiment of this utility model, the surface of the muffler is provided with a fixing member, and the fixing member is arranged in a U-shape. The fixing member is sleeved on the surface of the muffler and passes through the power box. The surface of the fixing member is provided with a fixing nut.

[0009] In a preferred embodiment of this utility model, the diversion mechanism includes several diversion tubes and a controller that matches each other.

[0010] In a preferred embodiment of this utility model, the sound-absorbing bowl is arranged in a conical structure, and the interior of the sound-absorbing cotton has an irregular honeycomb structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] The utility model of a roadway repair machine has a power box at the rear end and an air source pipe on the side of the power box. The other end of the air source pipe is connected to a pneumatic power source, which includes an air compressor. An aftercooler is installed at the output end of the air compressor. An air tank is located at the output end of the aftercooler, and a filter is installed on the side of the air tank. An air dryer is located on the side of the filter, and a three-unit air dryer is connected to the side of the air dryer. A solenoid valve is connected to the side of the three-unit air dryer and is connected to the air source pipe. When the air compressor starts, it compresses the outside air and delivers it to the aftercooler for cooling. After passing through the air tank and the filter, the air is dried by the air dryer and then enters the three-unit air dryer for further processing and adjustment. This ensures that the compressed air entering the power box is clean, dry, and has stable pressure, preparing it for subsequent processing. The pneumatic operation provides a reliable air source. The power box is equipped with a silencer pipe with connecting flanges at both ends. Inside the power box is a flow divider mechanism, and the silencer pipe is connected to the flow divider mechanism via the connecting flanges. Inside the silencer pipe is an air inlet with several sets of silencer cups. The silencer cups are conical in shape and evenly spaced. Sound-absorbing cotton is placed in the outer interlayer of the silencer pipe. The treated compressed air enters the silencer pipe in the power box through a solenoid valve. The air inlet and silencer cups inside the silencer pipe guide and silence the airflow. At the same time, the sound-absorbing cotton absorbs and disperses sound waves. The silenced compressed air enters the flow divider mechanism. The controller precisely controls the opening and closing and flow rate of each flow divider pipe, distributing the compressed air to each working part of the roadway repair machine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the pneumatic source structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the power box delivery pipe structure of this utility model;

[0016] Figure 4 This is a side view of the power box structure of this utility model.

[0017] In the diagram: 1. Tunnel repair machine body; 2. Power box; 3. Air source pipe; 4. Pneumatic source; 5. Air compressor; 6. Aftercooler; 7. Air tank; 8. Filter; 9. Air desiccant; 10. Tri-unit; 11. Solenoid valve; 12. Connecting flange; 13. Base; 14. Silencer pipe; 15. Fixing component; 16. Diverter mechanism; 17. Air inlet; 18. Silencer cup; 19. Silencer cotton; 20. Fixing nut; 21. Diverter pipe; 22. Controller. 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 1-4 This utility model provides a technical solution: a pneumatic power device for a tunnel repair machine.

[0020] Regarding the aforementioned problem: existing roadway repair machines generate noise during transport due to the high air pressure when using pneumatic equipment.

[0021] The solution is as follows: A pneumatic power unit for a roadway repair machine includes: a roadway repair machine body 1, a power box 2 is provided at the rear end of the roadway repair machine body 1, and an air source pipe 3 is provided on the side of the power box 2. The other end of the air source pipe 3 is connected to a pneumatic source 4. The pneumatic source 4 includes an air compressor 5, and an aftercooler 6 is provided at the output end of the air compressor 5. An air tank 7 is provided at the output end of the aftercooler 6, and a filter 8 is installed on the side of the air tank 7. An air dryer 9 is provided on the side of the filter 8, and a triplet 10 is connected to the side of the air dryer 9. A solenoid valve 11 is connected to the side of the triplet 10, and the solenoid valve 11 is connected to the air source pipe 3. A silencer pipe 14 is provided inside the power box 2. Both ends of the power box 2 are provided with connecting flanges 12. The power box 2 is provided with a diversion mechanism 16, and the silencer pipe 14 is connected to the diversion mechanism 16 through the connecting flanges 12. The silencer pipe 14 is provided with an air intake duct 17, and the air intake duct 17 is provided with several sets of silencer cups 18. The silencer cups 18 are arranged in a conical structure and are evenly distributed. The silencer pipe 14 is provided with sound-absorbing cotton 19 in the outer interlayer. The rear end of the tunnel repair machine body 1 is provided with a power box 2, and the side of the power box 2 is provided with an air source pipe 3. The other end of the air source pipe 3 is connected to a pneumatic source 4. The pneumatic source 4 includes an air compressor 5, and the output end of the air compressor 5 is provided with an aftercooler 6. An air tank 7 is provided at the output end of the aftercooler 6, and the side of the air tank 7 is provided with an air source 4. A filter 8 is installed, and an air dryer is installed on the side of the filter 8. A triplet 10 is connected to the side of the air desiccant 9. A solenoid valve 11 is connected to the side of the triplet 10 and is connected to the air source pipe 3. When the air compressor 5 is started, it compresses the outside air and delivers it to the aftercooler 6 for cooling. Then, the air is stored in the air tank 7 and filtered by the filter 8. Finally, after being dried by the air dryer, it enters the triplet 10 for further processing and adjustment to ensure that the compressed air entering the power box 2 is clean, dry, and has stable pressure, providing a reliable air source for subsequent pneumatic operations. The power box 2 is equipped with a silencer pipe 14, and both ends of the silencer pipe 14 are equipped with connecting flanges 12. A flow divider 1 is also installed inside the power box 2. 6. The silencer pipe 14 is connected to the diversion mechanism 16 via the connecting flange 12. The silencer pipe 14 has an air inlet 17 inside, and several sets of silencer bowls 18 are installed inside the air inlet 17. The silencer bowls 18 are arranged in a conical structure and are evenly distributed. The silencer cotton 19 is installed in the outer interlayer of the silencer pipe 14. The treated compressed air enters the silencer pipe 14 in the power box 2 through the solenoid valve 11. The air inlet 17 and silencer bowls 18 inside the silencer pipe 14 guide and silence the airflow. At the same time, the silencer cotton 19 absorbs and disperses the sound waves. The silenced compressed air enters the diversion mechanism 16. The controller 22 precisely controls the opening and closing and flow rate of each diversion pipe 21 to distribute the compressed air to each working part of the roadway repair machine.

[0022] Further improvements, such as Figure 2 As shown: The triplet 10 includes a pneumatic filter, a pressure reducing valve, and an oil mist lubricator. The pneumatic filter ensures that the air entering the pneumatic system is clean and free of impurities, extending the system's service life. The pressure reducing valve stabilizes the air pressure, preventing equipment damage or safety hazards caused by excessive air pressure. The oil mist lubricator provides necessary lubrication for the pneumatic components, reducing wear and improving operating efficiency.

[0023] Further improvements, such as Figure 3 As shown: A base 13 is provided between the muffler pipe 14 and the power box 2, and the inside of the base 13 is provided with an arc-shaped groove. The base 13 is supported by an elastic material. The design of the base 13 increases the stability between the muffler pipe 14 and the power box 2, and reduces vibration and noise transmission. The arc-shaped groove and the elastic material further enhance the shock absorption effect, making the entire power unit more stable and quiet during operation.

[0024] Further improvements, such as Figure 3 , 4 As shown: The surface of the muffler 14 is provided with a fastener 15, which is U-shaped. The fastener 15 is sleeved on the surface of the muffler 14 and passes through the power box 2. The surface of the fastener 15 is provided with a fixing nut 20. The U-shaped fastener 15 can firmly fix the muffler 14 and prevent it from shifting or loosening during operation. The use of the fixing nut 20 facilitates installation and disassembly and improves maintenance efficiency.

[0025] Further improvements, such as Figure 4 As shown: The flow splitting mechanism 16 includes several flow splitting pipes 21 and a matching controller 22. The design of the flow splitting mechanism 16 enables compressed air to be distributed to different working parts as needed, improving the flexibility and efficiency of the pneumatic system. The controller 22 can precisely control the opening and closing and flow rate of each flow splitting pipe 21, achieving more refined control.

[0026] Further improvements, such as Figure 4 As shown: the sound-absorbing bowl 18 is set in a conical structure, and the sound-absorbing cotton 19 has an irregular honeycomb structure inside. The conical sound-absorbing bowl 18 can effectively guide the airflow and reduce the noise generated by the airflow impact; the honeycomb structured sound-absorbing cotton 19 can absorb and disperse sound waves, further reducing the noise level.

[0027] Working principle: The air compressor 5 starts, compresses the outside air and delivers it to the aftercooler 6 for cooling. Then it is stored in the air tank 7 and filtered by the filter 8. Finally, it is dried by the air dryer and enters the triple unit 10 for further processing and adjustment. The processed compressed air enters the silencer pipe 14 in the power box 2 through the solenoid valve 11. The air intake duct 17 and the silencer bowl 18 inside the silencer pipe 14 guide and silence the airflow. At the same time, the sound-absorbing cotton 19 absorbs and disperses the sound waves. The silenced compressed air enters the distribution mechanism 16. The controller 22 precisely controls the opening and closing and flow of each distribution pipe 21 to distribute the compressed air to each working part of the roadway repair machine. Driven by pneumatic power, the roadway repair machine performs loading, crushing, and traveling operations to complete the repair work of the roadway after it has been deformed by pressure.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A pneumatic power device for a roadway repair machine, characterized in that: include: The tunnel repair machine body (1) has a power box (2) at its rear end and an air source pipe (3) on its side. The other end of the air source pipe (3) is connected to a pneumatic source (4). The pneumatic source (4) includes an air compressor (5) and an aftercooler (6) is provided at the output end of the air compressor (5). An air tank (7) is provided at the output end of the aftercooler (6) and a filter (8) is installed on the side of the air tank (7). An air dryer is provided on the side of the filter (8) and a triplet (10) is connected to the side of the air desiccant (9). An electromagnetic device is connected to the side of the triplet (10). The valve (11) and the solenoid valve (11) are connected to the air source pipe (3). The power box (2) is equipped with a silencer pipe (14) and both ends of the silencer pipe (14) are equipped with connecting flanges (12). The power box (2) is equipped with a flow divider mechanism (16) and the silencer pipe (14) is connected to the flow divider mechanism (16) through the connecting flanges (12). The silencer pipe (14) is equipped with an air intake channel (17) and several sets of silencer cups (18) are provided inside the air intake channel (17). The silencer cups (18) are arranged in a conical structure and are evenly distributed. The silencer pipe (14) is equipped with sound-absorbing cotton (19) in the outer interlayer.

2. The pneumatic power device for a roadway repair machine according to claim 1, characterized in that: The triplet (10) includes a pneumatic filter, a pressure reducing valve, and an oil mist lubricator.

3. The pneumatic power device for a roadway repair machine according to claim 1, characterized in that: A base (13) is provided between the muffler pipe (14) and the power box (2), and the base (13) has an arc-shaped groove inside. The base (13) is supported by an elastic material.

4. The pneumatic power device for a roadway repair machine according to claim 1, characterized in that: The surface of the muffler (14) is provided with a fastener (15) and the fastener (15) is U-shaped. The fastener (15) is sleeved on the surface of the muffler (14) and passes through the power box (2). The surface of the fastener (15) is provided with a fixing nut (20).

5. The pneumatic power device for a roadway repair machine according to claim 1, characterized in that: The diversion mechanism (16) includes several diversion tubes (21) and a matching controller (22).

6. The pneumatic power device for a roadway repair machine according to claim 1, characterized in that: The sound-absorbing bowl (18) is set in a conical structure, and the sound-absorbing cotton (19) has an irregular honeycomb structure inside.