Air filter for electric locomotive

Abstract

The utility model discloses an air filter for an electric locomotive. The air filter comprises a filter shell, one side of the inner wall of the filter shell is rotationally connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a fixed bevel gear, one side of the fixed bevel gear is in meshed connection with a transmission bevel gear, the other side of the transmission bevel gear is in meshed connection with a sleeving bevel gear, and one side of the sleeving bevel gear is fixedly connected with a cam; wherein one side of the cam is in lap joint with a lap joint plate, one side of the lap joint plate is fixedly connected with a filter plate, and the other side of the filter plate is provided with a vibration spring; wherein the other side of the cam is in lap joint with a lifting plate, one side of the lifting plate is provided with a sealing plate, the outer side of the sealing plate is in sliding connection with a dust storage groove, dust on the filter plate and air filtration are carried out at the same time, the air filtration efficiency is improved conveniently, and when the filter plate vibrates, the dust is stored in the dust storage groove, so that the air filtration efficiency is improved. Dust is prevented from polluting air again.

Description

Technical Field

[0001] This utility model relates to the field of electric locomotive equipment technology, specifically to an air filter for electric locomotives. Background Technology

[0002] Electric locomotives are locomotives whose wheels are driven by electric motors. The electrical energy required is supplied by the overhead contact line or third rail of the electrified railway power supply system. Electric locomotives do not carry a prime mover themselves, but rely on an external power system to supply them with electrical energy through the traction power supply system. This reduces their weight and achieves better acceleration and high-speed performance. When in use, their role in air filtration is mainly reflected in ensuring the cleanliness of the air in the driver's cab, protecting the traction motor and auxiliary equipment, and maintaining constant positive pressure in the engine room. These measures together ensure the safety and reliability of electric locomotives during operation.

[0003] Patent document CN216861446U discloses a side wall ventilation device for electric locomotives, relating to the field of electric locomotive equipment technology. The outer casing has several air inlet slots, a filter screen is installed inside the casing, a cleaning pipe is located behind the filter screen, several nozzles are installed on the cleaning pipe facing the filter screen, one end of the cleaning pipe is connected to a high-pressure pipe, two suction pipes are installed on the side wall of the outer casing in front of the filter screen, a heating mechanism is installed behind the cleaning pipe, and an air outlet mechanism is installed on the side wall of the outer casing behind the filter screen. A connecting pipe is connected to the inlet of a switching valve, and the two outlets of the switching valve are connected to the air outlet pipe and the circulation pipe, respectively. This invention facilitates rapid ventilation, filtration, and heating, enables filter cleaning, and saves cleaning time. It has a simple structure, is easy to operate quickly, has high stability, and improves overall efficiency. However, this patent still has the following problems in actual use:

[0004] This ventilation device absorbs dust adhering to the filter screen by installing a nozzle and a suction pipe on one side of the filter screen. However, since the ventilation device requires cleaning the dust on the filter screen separately when ventilation is stopped, and airflow needs to be supplied to the high-pressure pipe when cleaning the filter screen, the ventilation device is inconvenient to use.

[0005] Therefore, an air filter for electric locomotives is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide an air filter for electric locomotives to solve the problem mentioned in the background art. The current ventilation device absorbs dust attached to the filter screen by setting a nozzle and a dust suction pipe on one side of the filter screen. However, since the ventilation device needs to clean the dust on the filter screen separately when ventilation is stopped, and airflow needs to be provided to the high-pressure pipe when cleaning the filter screen, the ventilation device is inconvenient to use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an air filter for electric locomotives, comprising a filter housing;

[0008] Also includes:

[0009] A rotating shaft is rotatably connected to one side of the inner wall of the filter housing. A fan blade is fixedly connected to the middle of the outer side of the rotating shaft. A sleeve is sleeved at one end of the rotating shaft. A fixed bevel gear is provided on the inner side of the sleeve. A transmission bevel gear is meshed with one side of the fixed bevel gear. A positioning cylinder is rotatably connected to one side of the transmission bevel gear. A sleeve bevel gear is meshed with the other side of the transmission bevel gear. A cam is fixedly connected to one side of the sleeve bevel gear. An air outlet is opened on the other side of the inner wall of the filter housing.

[0010] The cam has a lap plate on one side, a filter plate fixedly connected to one side of the lap plate, a dust guide port fixedly connected to one side of the bottom of the filter plate, a scraper fixedly connected to the bottom of the dust guide port, a support rod fixedly connected to the other side of the filter plate, a sliding rod slidably connected to one side of the support rod, a vibration spring sleeved on the outside of the sliding rod, and a mounting plate fixedly connected to one end of the sliding rod.

[0011] The other side of the cam is connected to a lifting plate. A return spring is fixedly connected to the middle of the bottom surface of the lifting plate. A drive rack is fixedly connected to one side of the bottom of the lifting plate. A driven rack is provided on one side of the drive rack. A connecting rod is fixedly connected to the top of the driven rack. A sealing plate is fixedly connected to the middle of the bottom surface of the connecting rod. A ash storage trough is slidably connected to the outside of the sealing plate.

[0012] Preferably, one end of the rotating shaft passes through the filter housing and is fixedly connected to a motor, both ends of the rotating shaft are rotatably connected to the inner wall of the filter housing, and the fixed bevel gear is fixedly connected to the rotating shaft, which facilitates the positioning of the rotating shaft and the fixed bevel gear.

[0013] Preferably, one end of the sleeve is fixedly connected to one side of the inner wall of the filter housing, the positioning cylinder is sleeved on the outside of the rotating shaft, the sleeve bevel gear is rotatably connected to the end of the sleeve away from the fixed bevel gear, and one end of the sleeve bevel gear passes through the sleeve and is fixedly connected to the cam, which facilitates the positioning of the sleeve bevel gear.

[0014] Preferably, the cam and the overlapping plate are symmetrically arranged on both sides of the rotating shaft, and the sliding rod, the vibration spring and the mounting plate are symmetrically arranged at both ends of the overlapping plate and the support rod, which facilitates the positioning of the overlapping plate and the support rod at the sliding rod.

[0015] Preferably, one side of the overlapping plate is slidably connected to the outer side of the sliding rod, the vibration spring is disposed on the side of the overlapping plate away from the cam, and the bottom surface of the scraper is slidably connected to the bottom surface of the inner wall of the filter housing, which facilitates the positioning of the vibration spring.

[0016] Preferably, the ash storage tank is fixedly connected to the inner wall of the filter housing near the cam, and the bottom of the reset spring is fixedly connected to the top surface of the ash storage tank to facilitate the reset of the lifting plate.

[0017] Preferably, the active rack is L-shaped, with one side of the lower end of the active rack slidably connected to one side of the driven rack, one side of the upper end of the connecting rod slidably connected to one side of the upper end of the active rack, and a transmission gear rotatably connected to the upper end of the outer side of the ash storage trough, which facilitates the positioning of the active rack and the driven rack.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This air filter for electric locomotives uses a cam to push the overlapping plate, causing the filter plate to move towards the vibration spring. The vibration generated during the filter plate's reset process allows for simultaneous dust removal and air filtration, improving air filtration efficiency. Furthermore, during the filter plate's vibration, dust is stored in a dust trough, preventing it from re-polluting the air and affecting the air filtration effect. The specific details are as follows:

[0019] 1. By setting a fixed bevel gear, a transmission bevel gear, and a sleeve bevel gear at the end of the fan blade, the cam is driven to rotate at a reduced speed. The cam then pushes the overlapping plate to move the filter plate toward the vibration spring. The vibration generated during the filter plate's reset process promotes the dust to fall off the filter plate, allowing dust removal and air filtration to be carried out simultaneously. This improves the efficiency of air filtration and makes the air filter for electric locomotives more practical.

[0020] 2. By setting a dust collection trough, a sealing plate, a driven rack, a driving rack, a transmission gear, and a return spring at the lower end of the filter plate, the sealing plate can be easily opened at the dust collection trough when the filter plate vibrates. This facilitates the storage of dust in the dust collection trough, reduces the amount of dust falling back onto the fan blades, and prevents dust from polluting the air again, thus affecting the air filtration effect. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the front cross-section structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the filter plate structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model;

[0024] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the ash storage trough of this utility model.

[0026] In the diagram: 1. Filter housing; 2. Rotating shaft; 3. Fan blade; 4. Sleeve; 5. Fixed bevel gear; 6. Transmission bevel gear; 7. Positioning cylinder; 8. Sleeve bevel gear; 9. Cam; 10. Overlapping plate; 11. Filter plate; 12. Dust guide port; 13. Scraper; 14. Support rod; 15. Sliding rod; 16. Vibration spring; 17. Mounting plate; 18. Lifting plate; 19. Driving rack; 20. Return spring; 21. Driven rack; 22. Connecting rod; 23. Sealing plate; 24. Transmission gear; 25. Ash storage tank; 26. Air outlet. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5This utility model provides a technical solution: an air filter for electric locomotives, including a filter housing 1; further comprising: a rotating shaft 2 rotatably connected to one side of the inner wall of the filter housing 1, a fan blade 3 fixedly connected to the middle of the outer side of the rotating shaft 2, a sleeve 4 sleeved at one end of the rotating shaft 2, a fixed bevel gear 5 disposed on the inner side of the sleeve 4, a transmission bevel gear 6 meshing with one side of the fixed bevel gear 5, a positioning cylinder 7 rotatably connected to one side of the transmission bevel gear 6, a sleeve bevel gear 8 meshing with the other side of the transmission bevel gear 6, a cam 9 fixedly connected to one side of the sleeve bevel gear 8, and an air outlet 26 opened on the other side of the inner wall of the filter housing 1; a motor is fixedly connected to one end of the rotating shaft 2 through the filter housing 1, and the rotating shaft... Both ends of 2 are rotatably connected to the inner wall of the filter housing 1, and the fixed bevel gear 5 is fixedly connected to the rotating shaft 2; one end of the sleeve 4 is fixedly connected to one side of the inner wall of the filter housing 1, the positioning cylinder 7 is sleeved on the outside of the rotating shaft 2, the sleeve bevel gear 8 is rotatably connected to the end of the sleeve 4 away from the fixed bevel gear 5, and one end of the sleeve bevel gear 8 passes through the sleeve 4 and is fixedly connected to the cam 9. By setting the fixed bevel gear 5, the transmission bevel gear 6 and the sleeve bevel gear 8, a differential speed is formed between the fan blade 3 and the cam 9, which facilitates reducing the contact speed between the cam 9 and the overlapping plate 10, and provides time for the filter plate 11 to reset, so that the vibration effect of the filter plate 11 is better, thereby improving the efficiency of air filtration of the electric locomotive.

[0029] Among them, a cam 9 is connected to a connecting plate 10 on one side, a filter plate 11 is fixedly connected to one side of the connecting plate 10, a dust guide port 12 is fixedly connected to one side of the bottom of the filter plate 11, a scraper 13 is fixedly connected to the bottom of the dust guide port 12, a support rod 14 is fixedly connected to the other side of the filter plate 11, a sliding rod 15 is slidably connected to one side of the support rod 14, a vibration spring 16 is sleeved on the outside of the sliding rod 15, and a mounting plate 17 is fixedly connected to one end of the sliding rod 15; the cam 9 and the connecting plate 10 are symmetrically arranged on both sides of the rotating shaft 2, and the sliding rod 15, the vibration spring 16, and the mounting plate 17 are... The filter plates 11 are symmetrically arranged at both ends of the overlapping plate 10 and the support rod 14. One side of the overlapping plate 10 is slidably connected to the outer side of the sliding rod 15. The vibration spring 16 is located on the side of the overlapping plate 10 away from the cam 9. The bottom surface of the scraper 13 is slidably connected to the bottom surface of the inner wall of the filter housing 1. By setting the filter plate 11 in a V-shape, the contact area between the air and the filter plate 11 is increased, and the filtration efficiency is improved. The dust guide port 12 is set at the lower end of the filter plate 11 to facilitate the dust falling to one side of the dust storage tank 25. In conjunction with the scraper 13, the dust is pushed into the dust storage tank 25.

[0030] A lifting plate 18 is attached to the other side of the cam 9. A return spring 20 is fixedly connected to the middle of the bottom surface of the lifting plate 18. A drive rack 19 is fixedly connected to one side of the bottom of the lifting plate 18. A driven rack 21 is provided on one side of the drive rack 19. A connecting rod 22 is fixedly connected to the top of the driven rack 21. A sealing plate 23 is fixedly connected to the middle of the bottom surface of the connecting rod 22. A dust collection trough 25 is slidably connected to the outer side of the sealing plate 23. The dust collection trough 25 is fixedly connected to the inner wall of the filter housing 1 near the cam 9. The bottom of the return spring 20 is fixedly connected to the top surface of the dust collection trough 25. The active rack 19 is L-shaped, with one side of the lower end of the active rack 19 slidably connected to one side of the driven rack 21. One side of the upper end of the connecting rod 22 is slidably connected to one side of the upper end of the active rack 19. The upper end of the outer side of the ash storage trough 25 is rotatably connected to the transmission gear 24. By setting a sealing plate 23 on one side of the ash storage trough 25, and after the cam 9 separates from the overlapping plate 10, the cam 9 immediately pushes the lifting plate 18 to descend, thereby unfolding the sealing plate 23. This facilitates the sealing of the ash storage trough 25, preventing dust from re-entering the air and affecting the air filtration efficiency of the electric locomotive.

[0031] Working principle: When using this air filter for electric locomotives, firstly, the rotation of the rotating shaft 2 and the fan blades 3 promotes the air to enter the filter housing 1 and enters the electric locomotive through the air outlet 26. At this time, the fixed bevel gear 5 on one side of the rotating shaft 2 drives the transmission bevel gear 6 to rotate on one side of the positioning cylinder 7, and the transmission bevel gear 6 drives the sleeve bevel gear 8 to rotate at one end of the sleeve 4, thereby causing one end of the sleeve bevel gear 8 to drive the cam 9 to rotate.

[0032] Secondly, the cam 9 pushes the overlapping plate 10 and the support rod 14 to slide on the sliding rod 15 on one side of the mounting plate 17, thereby causing the filter plate 11 to retract toward the vibrating spring 16. When the cam 9 leaves the overlapping plate 10, the vibrating spring 16 pushes the filter plate 11 to reset, and the dust on the filter plate 11 falls along the dust guide port 12 onto the inside of the filter housing 1.

[0033] Finally, after the cam 9 separates from the overlapping plate 10, it then overlaps with the lifting plate 18, causing the lifting plate 18 to push the active rack 19 to descend. The return spring 20 contracts, and at this time, the active rack 19 drives the transmission gear 24 to rotate, thereby causing the transmission gear 24 to drive the driven rack 21 to rise. The connecting rod 22 at the top of the driven rack 21 drives the sealing plate 23 to rise in the ash storage trough 25, and cooperates with the scraper 13 to push the dust into the ash storage trough 25.

[0034] 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. An air filter for electric locomotives, comprising a filter housing (1); Its features are, Also includes: A rotating shaft (2) is rotatably connected to one side of the inner wall of the filter housing (1). A fan blade (3) is fixedly connected to the middle of the outer side of the rotating shaft (2). A sleeve (4) is sleeved at one end of the rotating shaft (2). A fixed bevel gear (5) is provided on the inner side of the sleeve (4). A transmission bevel gear (6) is meshed with one side of the fixed bevel gear (5). A positioning cylinder (7) is rotatably connected to one side of the transmission bevel gear (6). A sleeve bevel gear (8) is meshed with the other side of the transmission bevel gear (6). A cam (9) is fixedly connected to one side of the sleeve bevel gear (8). An air outlet (26) is opened on the other side of the inner wall of the filter housing (1). Among them, a cam (9) is connected to a lap plate (10) on one side, a filter plate (11) is fixedly connected to one side of the lap plate (10), a dust guide port (12) is fixedly connected to one side of the bottom of the filter plate (11), a scraper (13) is fixedly connected to the bottom of the dust guide port (12), a support rod (14) is fixedly connected to the other side of the filter plate (11), a sliding rod (15) is slidably connected to one side of the support rod (14), a vibration spring (16) is sleeved on the outside of the sliding rod (15), and a mounting plate (17) is fixedly connected to one end of the sliding rod (15). Among them, a lifting plate (18) is attached to the other side of the cam (9), a return spring (20) is fixedly connected to the middle of the bottom surface of the lifting plate (18), an active rack (19) is fixedly connected to one side of the bottom of the lifting plate (18), a driven rack (21) is provided on one side of the active rack (19), a connecting rod (22) is fixedly connected to the top of the driven rack (21), a sealing plate (23) is fixedly connected to the middle of the bottom surface of the connecting rod (22), and a ash storage trough (25) is slidably connected to the outer side of the sealing plate (23).

2. An air filter for electric locomotives according to claim 1, characterized in that: One end of the rotating shaft (2) passes through the filter housing (1) and is fixedly connected to a motor. Both ends of the rotating shaft (2) are rotatably connected to the inner wall of the filter housing (1). The fixed bevel gear (5) is fixedly connected to the rotating shaft (2).

3. An air filter for electric locomotives according to claim 1, characterized in that: One end of the sleeve (4) is fixedly connected to one side of the inner wall of the filter housing (1), the positioning cylinder (7) is sleeved on the outside of the rotating shaft (2), the sleeve bevel gear (8) is rotatably connected to the end of the sleeve (4) away from the fixed bevel gear (5), and one end of the sleeve bevel gear (8) passes through the sleeve (4) and is fixedly connected to the cam (9).

4. An air filter for electric locomotives according to claim 1, characterized in that: The cam (9) and the overlapping plate (10) are symmetrically arranged on both sides of the rotating shaft (2), and the sliding rod (15), the vibration spring (16) and the mounting plate (17) are symmetrically arranged at both ends of the overlapping plate (10) and the support rod (14).

5. An air filter for electric locomotives according to claim 1, characterized in that: One side of the overlapping plate (10) is slidably connected to the outside of the sliding rod (15), the vibration spring (16) is disposed on the side of the overlapping plate (10) away from the cam (9), and the bottom surface of the scraper (13) is slidably connected to the bottom surface of the inner wall of the filter housing (1).

6. An air filter for electric locomotives according to claim 1, characterized in that: The ash storage tank (25) is fixedly connected to the inner wall of the filter housing (1) on the side near the cam (9), and the bottom of the reset spring (20) is fixedly connected to the top surface of the ash storage tank (25).

7. An air filter for electric locomotives according to claim 1, characterized in that: The active rack (19) is L-shaped. One side of the lower end of the active rack (19) is slidably connected to one side of the driven rack (21). One side of the upper end of the connecting rod (22) is slidably connected to one side of the upper end of the active rack (19). The upper end of the outer side of the ash storage trough (25) is rotatably connected to a transmission gear (24).

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