Abrasion dust self-collecting current collector device

Abstract

The utility model provides a kind of abrasion dust self-collection current collector device, be provided with a dust collection mechanism on the current collection sliding shoe, the dust collection mechanism is used to collect the dust generated after current collection sliding shoe and conductive rail sliding contact abrasion, the dust collection mechanism includes sequentially connected dust collector, air pipe and dust collection bottle, the dust collector is arranged on current collection sliding shoe, the dust collector includes dust collection port, the dust collection port is arranged on the side of current collection sliding shoe away from wind direction, the dust collection port is below current collection sliding shoe, the dust collection port is towards wind direction, the air pipe is connected dust collector and dust collection bottle, the dust collection bottle is arranged on current collector base, and the dust collection bottle is used to collect dust;Abrasion dust generated after current collection sliding shoe and conductive rail abrasion is collected in real time using the dust collection mechanism, improve the service life of current collector device, enhance the safety of train operation, reduce the pollution of abrasion dust to environment, reduce the demand of manual cleaning.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically to a self-collecting current collector device for wear dust. Background Technology

[0002] A current collector, also known as a collector device, is a core component of a contact-type mobile power supply system for rail transit. It is primarily used for dynamic power extraction from vehicles such as electric locomotives, subways, light rail, and trams. The current collector is installed on the train's bogie and uses mechanical pressure to maintain stable contact between the current-collecting slipper and the ground conductive rail (third or fourth rail), enabling continuous and reliable power transmission even at high speeds. With the continuous expansion of rail transit networks and the increasing operating speeds, optimizing the performance of current collectors has become a crucial issue for ensuring safe train operation.

[0003] During dynamic current transmission, the contact state between the current-receiving slipper and the conductive rail constantly changes due to factors such as train vibration, track irregularities, and fluctuations in contact pressure. This dynamic contact leads to frictional wear on the contact surface, generating abrasive dust of metallic or carbonaceous materials. These dust particles typically possess high conductivity and chemical reactivity. The accumulation of abrasive dust causes dust pollution to the environment and surrounding components, resulting in multiple negative impacts. Abrasive dust adheres to the surface of the current-receiving device's insulating components, potentially causing a decrease in insulation performance or even short-circuit faults, increasing the risk of electrical failures. Abrasive dust entering mechanical transmission parts may accelerate component wear and affect the flexibility of the swing mechanism. Furthermore, in enclosed spaces such as tunnels, dust accumulation not only reduces visibility but its flammability may also pose fire safety hazards. More seriously, if this conductive abrasive dust drifts onto signaling equipment or other electrical components, it may cause serious consequences such as signal errors and equipment malfunctions, interfering with the normal operation of the train control system. To ensure the safe operation of trains and improve system reliability, it is necessary to clean the accumulated wear dust regularly, which increases the maintenance workload of train operation. Summary of the Invention

[0004] The purpose of this invention is to provide a self-collecting receiver for abrasive dust to solve the above-mentioned problems.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A current collector device for self-collecting abrasive dust, used for train contact power supply, includes a current collector base mounted on the train. The current collector base has a current-collecting slipper, a swing mechanism, and an electrical connection mechanism mounted on it. A dust collection mechanism is mounted on the current-collecting slipper to collect dust generated after the slipper slides and conductor rails wear down. The dust collection mechanism includes a dust collector, a duct, and a dust collection bottle connected in sequence. The dust collector is mounted on the current-collecting slipper and includes a dust collection port located on the side of the slipper away from the direction of incoming wind. The dust collection port is located below the slipper and faces the direction of incoming wind. The duct connects the dust collector and the dust collection bottle, which is mounted on the current collector base and is used to collect dust.

[0007] As a further improvement of this utility model, a first adapter is provided on the flow-receiving slipper, which is used to connect the flow-receiving slipper and the dust collector.

[0008] As a further improvement of this utility model, a second adapter is provided on the receiver base, which is used to connect the receiver base and the dust collection bottle.

[0009] As a further improvement of this utility model, the air duct is a flexible air duct.

[0010] As a further improvement to this utility model, the duct is bent.

[0011] As a further improvement of this utility model, the dust collector is trumpet-shaped, and the air inlet area of ​​the dust collection port is larger than the air outlet area of ​​the end where the dust collector is connected to the air inlet of the duct.

[0012] As a further improvement of the present invention, the dust collection bottle includes a shell and a dust collection bag disposed inside the shell. The shell is connected to the air outlet of the air duct, and the dust collection bag is used to collect dust.

[0013] As a further improvement of this utility model, the air duct is more horizontally positioned closer to the air outlet, the housing is positioned below the air outlet, and a 90° elbow adapter is provided between the air outlet and the inlet of the housing.

[0014] As a further improvement of this utility model, the dust collection bag is water-permeable, and several drainage grooves are provided on the shell, with the drainage grooves located on the side opposite to the direction of train travel.

[0015] As a further improvement of this utility model, the dust collection bag is breathable and has several air outlets on the shell, which are located at the bottom of the shell.

[0016] The beneficial effects of this utility model are as follows:

[0017] Through the above structure, the dust collection mechanism collects the wear dust generated after the flow receiving slipper and the conductive rail wear in real time, which improves the service life of the flow receiving device, enhances the safety of train operation, reduces the pollution of the environment by wear dust, and reduces the need for manual cleaning. Attached Figure Description

[0018] Figure 1 This is a front view of the self-collecting receiver device for abrasive dust;

[0019] Figure 2 This is a three-dimensional diagram of a self-collecting receiver for abrasive dust.

[0020] Wherein: 1-current receiver base, 2-current receiving slipper, 3-swing mechanism, 4-electrical connection mechanism, 5-dust collector, 51-dust collection port, 6-air duct, 61-air inlet, 62-air outlet, 7-dust collection bottle, 71-shell, 72-drainage trough, 73-air outlet hole, 8-first adapter, 9-second adapter, 10-adapter pipe. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0022] If the description of this utility model involves directions (e.g., up, down, left, right, front, back, outside, inside, etc.), then the directions involved need to be defined. For example, "To clearly express the position and direction described in this utility model, the operator of the instrument is used as a reference, the end closer to the operator is the proximal end, and the end farther from the operator is the distal end." Or, the paper can be used as a reference. Of course, if the positional relationship between the two is defined by mutual reference in the subsequent description, then this definition is not required.

[0023] A self-collecting current collector device for abrasive dust, used for contact-type power supply in trains, wherein the current collector device is mounted on the train bogie, such as... Figures 1-2As shown, the current collector device includes a current collector base 1, which is mounted on the train. A sliding shoe mechanism, a swing mechanism 3, and an electrical connection mechanism 4 are provided on the current collector base 1. The sliding shoe mechanism includes a current collecting sliding shoe 2. The swing mechanism 3 pushes the current collecting sliding shoe 2 into contact with the conductive rail under the action of its spring system. A dust collection mechanism is provided on the current collecting sliding shoe 2 to collect the dust generated after the current collecting sliding shoe 2 slides and wears out in contact with the conductive rail.

[0024] As an embodiment of this utility model, the dust collection mechanism includes a dust collector 5, an air duct 6, and a dust collection bottle 7 connected in sequence. The dust collector 5 is disposed on the receiving slipper 2 and can move with the receiving slipper 2. The dust collector 5 includes a dust collection port 51, which faces the direction of train travel, that is, the dust collection port 51 faces the direction of incoming wind. The dust collection port 51 is disposed on the side of the receiving slipper 2 away from the direction of incoming wind and is located below the receiving slipper 2. The dust collection bottle 7 has a dust collection space for collecting abrasive dust. The air duct 6 connects the dust collector 5 and the dust collection bottle 7 and is used to guide the dust collected by the dust collector 5 to the dust collection bottle 7, forming an air inlet channel in the air duct 6. The dust collection bottle 7 is disposed on the receiving device base 1 to fix the dust collection bottle 7. When the train is running, the wind blows abrasive dust. Since the dust collection port 51 is located downwind, under the action of wind and gravity, the dust generated by the wear of the flow-receiving slipper 2 and the conductive rail is collected by the dust collection port 51 and enters the dust collector 5. Under the action of inertial force, it flows in the air inlet channel, forming a stable negative pressure zone in the air duct 6. Finally, the dust enters the dust collection space in the dust collection bottle 7 and is collected.

[0025] In one embodiment of this utility model, a first adapter 8 is provided on the receiving slipper 2. The first adapter 8 is used to connect the receiving slipper 2 and the dust collector 5, thereby fixing the dust collector 5 on the receiving slipper 2. Through the connection and fixation of the first adapter 8, during the dynamic flow supply process of the receiving slipper 2, the relative position of the receiving slipper 2 and the dust collection port 51 of the dust collector 5 can remain unchanged, controlling the position fluctuation range of the dust collection port 51. No matter how the receiving slipper 2 moves, the dust collection port 51 can always remain at the optimal dust collection position, achieving the highest efficiency and most accurate collection of abrasive dust. Specifically, the dust collector 5 includes a dust outlet, which is connected to the air inlet 61 of the air duct 6. The connection end of the first adapter 8 with the dust collector 5 and the air duct 6 can be an annular clamp. The first adapter 8 is L-shaped. The L-shaped first adapter 8 can make way for the dust collector 5 while connecting the flow receiving slipper 2, the dust collector 5 and the air duct 6.

[0026] A second adapter 9 is provided on the receiver base 1. The second adapter 9 is used to connect the receiver base 1 and the dust collection bottle 7. The second adapter 9 is rigidly connected to the receiver base 1 and the dust collection bottle 7 by bolts or a quick-release structure, thereby keeping the relative positions of the receiver base 1 and the dust collection bottle 7 unchanged. Since the air outlet 62 of the air duct 6 is connected to the inlet of the dust collection bottle 7, the position of the air outlet 62 of the air duct 6 is also relatively fixed, avoiding loosening of the connection or airflow leakage due to vibration or swing. The connection end of the second adapter 9 with the dust collection bottle 7 and the air duct 6 can be a ring-shaped clamp.

[0027] In one embodiment of this utility model, the duct 6 is a flexible duct with excellent bendability and extensibility, effectively adapting to the complex motion trajectory of the swing mechanism 3. This design not only eliminates the constraint of the dust collection mechanism on the degree of freedom of the swing mechanism 3, but also realizes the linkage between the dust collector 5 and the flow-receiving slipper 2, thereby ensuring that the dust collection port 51 always maintains the optimal dust collection position, significantly improving dust capture efficiency. Furthermore, the fatigue resistance and wear resistance of the flexible duct 6 further enhance the reliability and service life of the system, making it suitable for long-term stable operation under high dynamic conditions.

[0028] As one embodiment of this utility model, the air duct 6 is curved. Specifically, the air duct 6 can be U-shaped. Through a special flow channel turning structure, local resistance is formed, which can effectively reduce the wind speed, thereby preventing the excessive wind force from blowing the dust in the dust collection bottle 7 into the air and ensuring the stability of dust collection.

[0029] As one embodiment of this utility model, the dust collector 5 is trumpet-shaped, that is, the air inlet area of ​​the dust collection port 51 is larger than the air outlet area of ​​the end of the dust collector 5 connected to the air inlet 61 of the air duct 6 (i.e., the dust outlet), forming a reduced flow channel. The larger dust collection port 51 can collect as much dust as possible, and the reduced flow channel can generate a negative pressure zone at the dust collection port 51, which enhances the dust adsorption force, reduces airflow turbulence, and improves the dust conveying efficiency.

[0030] As an embodiment of this utility model, the dust collection bottle 7 adopts a double-layer structure design. The dust collection bottle 7 includes a shell 71 and a dust collection bag disposed in the shell 71. The shell 71 is connected to the air outlet 62 of the air duct 6. The dust collection bag is used to collect dust. The dust collection bottle 7 is easy to maintain, and the collected dust is easy to clean. The dust collection bag is also easy to replace.

[0031] As an embodiment of this utility model, since the train travels in the open for many sections, it inevitably encounters rain or moisture in the wind during its journey. Therefore, the housing 71 is provided with several drainage channels 72 and several air outlets 73. The drainage channels 72 are used to drain rainwater or condensed water droplets that enter the dust collection bag with the wind. The drainage channels 72 are located on the side opposite to the direction of train travel (i.e., the leeward side) to quickly guide rainwater and condensed water. The air outlets 73 are used to discharge air that enters the dust collection bag. The air duct 6 is arranged in a gradually horizontal manner near the air outlet 62. A 90° bend adapter pipe 10 is provided between the air outlet 62 of the air duct 6 and the inlet of the housing 71 to slow down the air entering the housing 71 and prevent high-speed airflow carrying water droplets from impacting the dust collection bag. The air outlets 73 are located at the bottom of the housing 71 to ensure smooth airflow and prevent rainwater backflow. Correspondingly, the dust collection bag is also made of a material that allows air and water to pass through but prevents dust from passing through.

[0032] When the train is running, the wear dust generated by the wear of the flow-receiving slipper 2 and the conductive rail will drift to the lower rear of the flow-receiving slipper 2 under the action of wind and gravity generated by the train. The dust collector 5 located at the downwind outlet will collect the dust and guide it to the dust collection bottle 7 through the flexible air duct 6. The dust will be collected by the dust collection bag, and the air will flow out through the dust collection bag and be blown out from the air outlet 73 at the bottom of the housing 71. Rainwater or condensate mixed with the air and dust will flow out through the dust collection bag and be discharged from the drainage groove 72 on the leeward side of the housing 71.

[0033] The wear dust self-collecting current collector device provided by this utility model collects the wear dust generated after the wear of the current collecting slipper 2 and the conductive rail in real time through the dust collection mechanism. The dust is collected by a combination of negative pressure adsorption and mechanical interception, avoiding secondary wear of the current collector components by dust, extending the service life of the current collector device, avoiding increased contact resistance caused by dust accumulation, reducing arc discharge, improving the reliability of power supply, enhancing the safety of train operation, reducing the pollution of wear dust to the environment, reducing the need for manual cleaning, and saving maintenance costs. It is suitable for high-density, long-distance rail transit scenarios.

[0034] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0035] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementation methods or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A current collector device for self-collecting abrasive dust, used for contact power supply of trains, the current collector device comprising a current collector base (1), the current collector base (1) being disposed on the train, and a current collecting slipper, a swing mechanism (3) and an electrical connection mechanism (4) being disposed on the current collector base (1), characterized in that: A dust collection mechanism is provided on the receiving slide shoe. The dust collection mechanism is used to collect the dust generated after the receiving slide shoe and the conductive rail slide and wear. The dust collection mechanism includes a dust collector (5), a duct (6) and a dust collection bottle (7) connected in sequence. The dust collector (5) is provided on the receiving slide shoe (2). The dust collector (5) includes a dust collection port (51). The dust collection port (51) is provided on the side of the receiving slide shoe (2) away from the direction of the incoming wind. The dust collection port (51) is located below the receiving slide shoe (2) and faces the direction of the incoming wind. The duct (6) connects the dust collector (5) and the dust collection bottle (7). The dust collection bottle (7) is provided on the base (1) of the receiving device. The dust collection bottle (7) is used to collect dust.

2. The abrasive dust self-collecting receiver device according to claim 1, characterized in that: A first adapter (8) is provided on the flow receiving slipper (2), which is used to connect the flow receiving slipper (2) and the dust collector (5).

3. The abrasive dust self-collecting receiver device according to claim 2, characterized in that: A second adapter (9) is provided on the receiver base (1), which is used to connect the receiver base (1) and the dust collection bottle (7).

4. The abrasive dust self-collecting receiver device according to claim 3, characterized in that: The air duct (6) is a flexible air duct (6).

5. The abrasive dust self-collecting receiver device according to claim 4, characterized in that: The air duct (6) is bent.

6. The abrasive dust self-collecting receiver device according to claim 1, characterized in that: The dust collector (5) is trumpet-shaped, and the air inlet area of ​​the dust collection port (51) is larger than the air outlet area of ​​the end of the dust collector (5) connected to the air inlet (61) of the duct (6).

7. The abrasion dust self-collecting receiver device according to claim 5, characterized in that: The dust collection bottle (7) includes a housing (71) and a dust collection bag disposed inside the housing (71). The housing (71) is connected to the air outlet (62) of the air duct (6). The dust collection bag is used to collect dust.

8. The abrasion dust self-collecting receiver device according to claim 7, characterized in that: The air duct (6) is more horizontally positioned closer to the air outlet (62). The housing (71) is located below the air outlet (62). A 90° elbow adapter pipe (10) is provided between the air outlet (62) and the inlet of the housing (71).

9. The abrasive dust self-collecting receiver device according to claim 7, characterized in that: The dust collecting bag can be water permeable, and a plurality of water drainage grooves (72) are arranged on the shell (71) and arranged on the side opposite to the running direction of the train.

10. The abrasion dust self-collecting current collector device according to claim 7, characterized in that: The dust collecting bag can be air permeable, and a plurality of air outlet holes (73) are arranged on the shell (71) and arranged at the bottom of the shell (71).

Images