Movable grinding and dust removing equipment

By using a mobile grinding and dust removal equipment, which combines an explosion-proof air compressor-driven cylinder with a dust removal device, the problem of dust permeation during the grinding of railway passenger car exteriors has been solved, achieving safe and efficient dust removal.

CN223834293UActive Publication Date: 2026-01-27HARBIN VEIC TECH
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Patent Information

Application Number
CN202520462760.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-27
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

In the existing technology, a large amount of paint dust is generated during the polishing of the exterior of railway passenger cars. This dust cannot be removed in time, which affects the health of workers and poses a dust explosion safety hazard.

Method used

Design a mobile grinding and dust removal device, including an explosion-proof air compressor, a dust removal device, a mobile flatbed cart, a lifting work platform, a semi-enclosed hood, and dust-blocking brushes. The explosion-proof air compressor provides compressed air to drive a cylinder to push the dust-blocking brushes to form a closed space, which is combined with dust suction holes and dust removal devices for centralized dust collection.

Benefits of technology

This effectively prevents dust from spreading in the workshop, protects the health of workers, eliminates the risk of dust explosion, and improves grinding efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223834293U_ABST
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Abstract

The utility model discloses movable polishing and dust removing equipment, and relates to the technical field of passenger train body skin polishing operation. The problems that in the prior art, a large amount of paint dust generated in a room cannot be removed in time in the operation process when a grinding wheel and other tools are used for grinding the outer skin of a passenger train body, the physical and psychological health of operators is affected, and the potential safety hazard of dust explosion exists are solved. Compressed air is provided for the three driving air cylinders through the anti-explosion air compressor, so that the swing angle of the dust blocking brush is controlled, and then a closed space is formed among the dust blocking brush, the semi-closed cover body and the vehicle body. And a dust suction through hole is formed in the center of the inner side wall of the semi-closed cover body, the dust suction end of the dust removal equipment is fixedly connected with the dust suction through hole in the inner wall of the semi-closed cover body through a pipeline, and generated dust is guided into the dust removal equipment through the dust suction through hole in the inner wall of the semi-closed cover body when the vehicle body polishing operation is carried out, so that centralized dust collection is carried out. The device is suitable for polishing the outer skin of the passenger train body.
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Description

Technical Field

[0001] This utility model relates to the technical field of grinding operations on the exterior of railway passenger cars, specifically to a mobile grinding and dust removal device. Background Technology

[0002] Currently, during railway passenger car operation, the paint on the car body will peel off due to contact with the external environment. During passenger car maintenance, the areas requiring repainting are sanded and then repainted. This repainting work is usually done manually, requiring workers to use handheld angle grinders. This process is inefficient and generates a large amount of dust, which is harmful to the workers' health. Prolonged sanding increases the workers' workload, reduces efficiency, and the final result largely depends on the worker's experience and skill level.

[0003] In summary, existing technologies that use grinding wheels and other tools to polish the exterior of railway passenger cars generate a large amount of paint dust during the operation, which cannot be removed in time and permeates the air, affecting the physical and mental health of the workers and posing a dust explosion hazard. Utility Model Content

[0004] This invention addresses the problem that existing technologies use grinding wheels and other tools to grind the exterior of railway passenger cars, resulting in a large amount of paint dust generated indoors during the operation that cannot be removed in time, permeating the air, affecting the physical and mental health of workers, and posing a dust explosion hazard. Therefore, a mobile grinding dust removal device is proposed.

[0005] This utility model discloses a mobile grinding and dust removal device, which comprises an explosion-proof air compressor 1, a dust removal device 2, a mobile flatbed 3, a lifting work platform 4, a semi-enclosed cover 5, a dust-blocking brush 6, and a drive cylinder 7.

[0006] The upper surface of the mobile flatbed 3 is provided with an explosion-proof air compressor 1, a dust removal device 2 and a semi-enclosed cover 5 from left to right. The closed end face of the semi-enclosed cover 5 is provided with a lifting platform 4. The bottom of the lifting platform 4 is fixedly connected to the upper surface of the mobile flatbed 3. A dust-blocking brush 6 is provided on both sides and the top of the open end of the semi-enclosed cover 5. Each dust-blocking brush 6 is hinged to the outer wall of the open end of the semi-enclosed cover 5 through an industrial hinge. A drive cylinder 7 is provided in the middle of the upper surface of the semi-enclosed cover 5 and the middle of the outer wall on both sides of the open end. One end of each drive cylinder 7 is hinged to the outer wall of the semi-enclosed cover 5. The output end of each drive cylinder 7 is hinged to the mounting plate of the dust-blocking brush 6.

[0007] Furthermore, a four-way connector is installed at the pressure output end of the explosion-proof air compressor 1;

[0008] Furthermore, the first output end of the four-way connector is connected to the air inlet and outlet of the drive cylinder 7 in the middle of the upper surface of the semi-enclosed cover 5 via a pipe.

[0009] Furthermore, the second output end of the four-way connector is connected to the air inlet and outlet of the drive cylinder 7 in the middle of one side of the semi-enclosed cover 5 via a pipe; the third output end of the four-way connector is connected to the pressure input end of the drive cylinder 7 in the middle of the other side of the semi-enclosed cover 5 via a pipe.

[0010] Furthermore, a solenoid valve is provided on the pipe connecting the No. 1 output end of the four-way connector to the air inlet and outlet of the drive cylinder 7 in the middle of the upper surface of the semi-enclosed cover 5.

[0011] Furthermore, a second solenoid valve is provided on the pipe connecting the second output end of the four-way connector to the inlet and outlet of the drive cylinder 7 in the middle of one side of the semi-enclosed cover 5; a third solenoid valve is provided on the pipe connecting the third output end of the four-way connector to the inlet and outlet of the drive cylinder 7 in the middle of the other side of the semi-enclosed cover 5.

[0012] Furthermore, a dust-absorbing through hole is provided at the center of the inner sidewall of the semi-enclosed cover 5;

[0013] Furthermore, the dust collection end of the dust removal device 2 is fixedly connected to the dust collection through hole on the inner wall of the semi-enclosed cover 5 through a pipe.

[0014] Furthermore, the lifting work platform 4 is equipped with a dust concentration detector;

[0015] Furthermore, during use, the explosion-proof air compressor 1 provides compressed air to three drive cylinders 7. The operator controls the first solenoid valve, the second solenoid valve, and the third solenoid valve through the knob on the control panel, thereby controlling the drive cylinder 7 to extend the piston rod and push the dust-blocking brush outward, so that the dust-blocking brush 6, the semi-enclosed cover 5 and the bus body form a nearly enclosed space.

[0016] When the operator stands on the lifting platform 4 to perform grinding work on the vehicle body, the dust generated is introduced into the dust removal equipment 2 through the dust suction holes on the inner wall of the semi-enclosed cover 5 for centralized dust collection. After passing through the filtration system inside the dust removal equipment 2, the dust is discharged into the dust collection box inside the dust removal equipment 2, thus preventing the dust from spreading inside the warehouse due to grinding.

[0017] The mobile flatbed cart 3 is controlled by a remote control for movement and steering. The operating platform for controlling the lifting of the lifting work platform 4 is installed on the lifting work platform 4 and is operated by the operator to control the lifting height of the platform. A dust concentration detector is installed on the lifting platform. When the dust concentration exceeds the standard, an alarm will sound and the machine will stop and cut off the power to stop the operation.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention overcomes the shortcomings of existing technologies by using an explosion-proof air compressor to provide compressed air to three drive cylinders 7. Operators control solenoid valves 1, 2, and 3 via knobs on the control panel, thereby controlling the drive cylinders 7 to extend their piston rods and push the dust-blocking brush outwards. This creates a near-closed space between the dust-blocking brush, the semi-enclosed enclosure, and the bus body. Furthermore, a dust-collecting hole is located in the center of the inner side wall of the semi-enclosed enclosure. The dust-collecting end of the dust removal equipment is fixedly connected to this hole via a pipe. During vehicle body grinding operations, the generated dust is guided into the dust removal equipment through the dust-collecting hole on the inner wall of the semi-enclosed enclosure for centralized dust collection. This prevents dust from spreading throughout the storage area during grinding, ensuring the health and safety of operators and avoiding the potential for dust explosions. Attached Figure Description

[0020] Figure 1 This is a front view of a mobile grinding and dust removal device according to this utility model;

[0021] Figure 2 This is a side view of a mobile grinding and dust removal device according to the present invention;

[0022] Figure 3 This is a top view of a mobile grinding and dust removal device according to this utility model. Detailed Implementation

[0023] Specific implementation method one: Combining Figures 1 to 3 This embodiment describes a mobile grinding and dust removal device, which comprises an explosion-proof air compressor 1, a dust removal device 2, a mobile flatbed cart 3, a lifting work platform 4, a semi-enclosed cover 5, a dust-blocking brush 6, and a drive cylinder 7.

[0024] The upper surface of the mobile flatbed 3 is provided with an explosion-proof air compressor 1, a dust removal device 2 and a semi-enclosed cover 5 from left to right. The closed end face of the semi-enclosed cover 5 is provided with a lifting platform 4. The bottom of the lifting platform 4 is fixedly connected to the upper surface of the mobile flatbed 3. A dust-blocking brush 6 is provided on both sides and the top of the open end of the semi-enclosed cover 5. Each dust-blocking brush 6 is hinged to the outer wall of the open end of the semi-enclosed cover 5 through an industrial hinge. A drive cylinder 7 is provided in the middle of the upper surface of the semi-enclosed cover 5 and the middle of the outer wall on both sides of the open end. One end of each drive cylinder 7 is hinged to the outer wall of the semi-enclosed cover 5. The output end of each drive cylinder 7 is hinged to the top of the dust-blocking brush 6.

[0025] In this specific embodiment, compressed air from an explosion-proof air compressor is supplied to three drive cylinders 7 via solenoid valves. The operator controls solenoid valves 1, 2, and 3 via knobs on the control panel, thereby controlling the piston rod of drive cylinder 7 to extend outward and push the dust-blocking brush. This creates a near-closed space between the dust-blocking brush, the semi-enclosed cover, and the bus body, preventing dust generated during grinding from spreading into the workshop.

[0026] Specific Implementation Method Two: Combining Figures 1 to 3 This embodiment further defines the grinding and dust removal equipment described in Specific Embodiment 1. In this embodiment, a mobile grinding and dust removal equipment is provided, wherein the pressure output end of the explosion-proof air compressor 1 is equipped with a four-way connector.

[0027] Specific implementation method three: Combining Figures 1 to 3 This embodiment further defines the grinding and dust removal equipment described in Specific Embodiment Two. In this embodiment, a mobile grinding and dust removal equipment is provided, wherein the first output end of the four-way connector is connected to the air inlet and outlet of the drive cylinder 7 located in the middle of the upper surface of the semi-enclosed cover 5 via a pipe.

[0028] Specific implementation method four: Combination Figures 1 to 3 This embodiment further defines the grinding and dust removal equipment described in Specific Embodiment 3. In this embodiment, a mobile grinding and dust removal equipment is provided, wherein the second output end of the four-way connector is connected to the air inlet and outlet of the drive cylinder 7 in the middle of one side of the semi-enclosed cover 5 via a pipe; and the third output end of the four-way connector is connected to the air inlet and outlet of the drive cylinder 7 in the middle of the other side of the semi-enclosed cover 5 via a pipe.

[0029] Specific Implementation Method Five: Combining Figures 1 to 3 This embodiment further defines the grinding and dust removal equipment described in Specific Embodiment 4. In this embodiment, a mobile grinding and dust removal equipment is provided with a No. 1 solenoid valve on the pipe connecting the No. 1 output end of the four-way connector to the air inlet and outlet of the drive cylinder 7 in the middle of the upper surface of the semi-enclosed cover 5.

[0030] Specific Implementation Method Six: Combination Figures 1 to 3 This embodiment further defines the grinding and dust removal equipment described in Specific Embodiment Five. In this embodiment, a mobile grinding and dust removal equipment is provided with a No. 2 solenoid valve on the pipe connecting the No. 2 output end of the four-way connector to the air inlet and outlet of the drive cylinder 7 in the middle of one side of the semi-enclosed cover 5; and a No. 3 solenoid valve on the pipe connecting the No. 3 output end of the four-way connector to the air inlet and outlet of the drive cylinder 7 in the middle of the other side of the semi-enclosed cover 5.

[0031] In this specific embodiment, a solenoid valve is installed on the pipe connecting the first output end of the four-way connector to the air inlet and outlet of the drive cylinder 7 in the middle of the upper surface of the semi-enclosed cover 5; a solenoid valve is installed on the pipe connecting the second output end of the four-way connector to the air inlet and outlet of the drive cylinder 7 in the middle of one side of the semi-enclosed cover 5; a solenoid valve is installed on the pipe connecting the third output end of the four-way connector to the air inlet and outlet of the drive cylinder 7 in the middle of the other side of the semi-enclosed cover 5; the operator controls the first, second, and third solenoid valves by turning the knob on the control panel, thereby controlling the piston rod of the drive cylinder 7 to extend and push the dust-blocking brush outward.

[0032] Specific implementation method seven: Combining Figures 1 to 3 This embodiment further defines the grinding and dust removal equipment described in Specific Embodiment 1. In this embodiment, a mobile grinding and dust removal equipment is provided with a dust suction hole at the center of the inner side wall of the semi-enclosed cover 5.

[0033] Specific implementation method eight: Combination Figures 1 to 3 This embodiment further defines the grinding and dust removal equipment described in Specific Embodiment Seven. In this embodiment, a mobile grinding and dust removal equipment is provided, wherein the dust collection end of the dust removal equipment 2 is fixedly connected to the dust collection through hole on the inner wall of the semi-enclosed cover 5 through a pipe.

[0034] In this specific embodiment, the dust collection end of the dust removal device 2 is fixedly connected to the dust collection through hole on the inner wall of the semi-enclosed cover 5 through a pipe. When grinding the vehicle body, the generated dust is introduced into the interior of the dust removal device through the dust collection through hole on the inner wall of the semi-enclosed cover for centralized dust collection. This avoids the phenomenon of dust spreading in the warehouse due to grinding, ensures the physical and mental health of the workers, and thus avoids the hidden danger of dust explosion.

[0035] Specific Implementation Method Nine: Combining Figures 1 to 3 This embodiment further defines the grinding and dust removal equipment described in Specific Embodiment 1. The mobile grinding and dust removal equipment described in this embodiment includes a dust concentration detector on the lifting platform 4.

[0036] In this specific embodiment, a dust concentration detector is installed on the lifting work platform 4. When the dust concentration exceeds the standard, an alarm is triggered and the machine stops and the power is cut off to stop the operation.

[0037] Working principle

[0038] In use, the explosion-proof air compressor 1 provides compressed air to three drive cylinders 7 through solenoid valves. The operator controls solenoid valves 1, 2 and 3 through the knobs on the control panel, thereby controlling the piston rod of drive cylinder 7 to extend and push out the dust brush 6, thus forming a nearly enclosed space between the dust brush 6, the semi-enclosed cover 5 and the bus body.

[0039] When the operator stands on the lifting platform 4 to perform grinding work on the vehicle body, the dust generated is introduced into the dust removal equipment 2 through the dust suction holes on the inner wall of the semi-enclosed cover 5 for centralized dust collection. After passing through the filtration system inside the dust removal equipment 2, the dust is discharged into the dust collection box inside the dust removal equipment 2, thus preventing the dust from spreading inside the warehouse due to grinding.

[0040] The mobile flatbed cart 3 is controlled by a remote control for movement and steering. The operating platform for controlling the lifting of the lifting work platform 4 is installed on the lifting work platform 4 and is operated by the operator to control the lifting height of the platform. A dust concentration detector is installed on the lifting platform. When the dust concentration exceeds the standard, an alarm will sound and the machine will stop and cut off the power to stop the operation.

Claims

1. A mobile grinding and dust removal device, characterized in that: It includes an explosion-proof air compressor (1), a dust removal device (2), a mobile flatbed cart (3), a lifting work platform (4), a semi-enclosed enclosure (5), a dust-blocking brush (6), and a drive cylinder (7); The upper surface of the mobile flatbed (3) is provided with an explosion-proof air compressor (1), a dust removal device (2) and a semi-enclosed cover (5) from left to right. The closed end face of the semi-enclosed cover (5) is provided with a lifting platform (4). The bottom of the lifting platform (4) is fixedly connected to the upper surface of the mobile flatbed (3). A dust-blocking brush (6) is provided on both sides and the top of the opening end of the semi-enclosed cover (5). Each dust-blocking brush (6) is hinged to the outer wall of the opening end of the semi-enclosed cover (5) through an industrial hinge. A drive cylinder (7) is provided in the middle of the upper surface of the semi-enclosed cover (5) and the middle of the outer wall on both sides of the opening end. One end of each drive cylinder (7) is hinged to the outer wall of the semi-enclosed cover (5). The output end of each drive cylinder (7) is hinged to the top of the dust-blocking brush (6).

2. The mobile grinding and dust removal equipment according to claim 1, characterized in that: The explosion-proof air compressor (1) is equipped with a four-way fitting at its pressure output end.

3. The mobile grinding and dust removal equipment according to claim 2, characterized in that: The first output end of the four-way connector is connected to the air inlet and outlet of the drive cylinder (7) in the middle of the upper surface of the semi-enclosed cover (5) through a pipe.

4. The mobile grinding and dust removal equipment according to claim 3, characterized in that: The second output end of the four-way connector is connected to the air inlet and outlet of the drive cylinder (7) in the middle of one side of the semi-enclosed cover (5) via a pipe; the third output end of the four-way connector is connected to the air inlet and outlet of the drive cylinder (7) in the middle of the other side of the semi-enclosed cover (5) via a pipe.

5. A mobile grinding and dust removal device according to claim 4, characterized in that: A solenoid valve is installed on the pipe connecting the No. 1 output end of the four-way component to the inlet and outlet of the drive cylinder (7) in the middle of the upper surface of the semi-enclosed cover (5).

6. A mobile grinding and dust removal device according to claim 5, characterized in that: A second solenoid valve is provided on the pipe connecting the second output end of the four-way connector to the inlet and outlet of the drive cylinder (7) in the middle of one side of the semi-enclosed cover (5); a third solenoid valve is provided on the pipe connecting the third output end of the four-way connector to the inlet and outlet of the drive cylinder (7) in the middle of the other side of the semi-enclosed cover (5).

7. A mobile grinding and dust removal device according to claim 1, characterized in that: The semi-enclosed cover (5) has a dust suction hole at the center of the inner side wall.

8. A mobile grinding and dust removal device according to claim 7, characterized in that: The dust removal device (2) has its dust suction end fixedly connected to the dust suction through hole on the inner wall of the semi-enclosed cover (5) via a pipe.

9. A mobile grinding and dust removal device according to claim 1, characterized in that: The lifting platform (4) is equipped with a dust concentration detector.