Automatic dust blowing equipment for train brake resistor disc

Abstract

The utility model provides automatic dust blowing equipment for a train brake resistor disc. The automatic dust blowing equipment is provided with a dust blowing system, a dust discharging system and an electric control system. The dust blowing system is provided with a closed dust blowing room, and a rotatable circular carrying disc supported by a foot stool is mounted in the dust blowing room; the gear motor drives the circular carrying disc to rotate in situ; an air knife assembly is further erected in the dust blowing room and provided with dust blowing pipes which correspond up and down and are provided with narrow slit nozzles, and high-pressure airflow blown out of the narrow slit nozzles of the upper dust blowing pipe and the lower dust blowing pipe forms an air knife which skims over half of the circular carrying disc. And the dust exhaust system is provided with a centrifugal fan and a dust removal device. When the equipment works, the circular carrying disc in the dust blowing room rotates in situ, the air knife automatically blows dust and cleans the upper and lower surfaces of the brake resistor disc, the operation efficiency is high, the dust blowing and cleaning quality is stable, and blown dust is sucked into the dust removal device by the centrifugal fan for dust removal, cleaning and discharging. And the whole dust blowing and discharging treatment does not influence the body health of staff and does not cause pollution to the working environment.

Description

Technical Field

[0001] This utility model relates to a cleaning device for train components, specifically an automatic dust blowing device for train brake resistors, belonging to the technical field of rail transit maintenance equipment. Background Technology

[0002] When the train brakes, the recovered electrical energy is transmitted to the power grid. The portion that the grid cannot absorb is transmitted to the train's braking resistor box, where the braking resistors convert this energy into heat. The braking resistors are mounted in the braking resistor box in the form of brake resistor plates. Each brake resistor plate has a set of vertically arranged sheet resistors. Multiple brake resistor plates are placed side-by-side in the braking resistor box, and a fan on one side of the box blows air onto the side-by-side brake resistor plates to dissipate heat. During daily train operation, dust is continuously attracted to the heated brake resistor plates. When too much dust accumulates, it can block the air ducts of the brake resistor plates, affecting their heat dissipation efficiency. Therefore, the brake resistor plates need to be periodically removed from the braking resistor box and cleaned by blowing away dust.

[0003] Currently, the cleaning of brake resistor sheets is generally done manually with a handheld blower. However, manual cleaning has several problems:

[0004] (1) Manual dust blowing is cumbersome, time-consuming, and inefficient. Because the dust blowing gun has a small outlet, while the area to be cleaned for the brake resistor pads is large and the path is long, it takes about 15 minutes to manually clean each brake resistor pad. The brake resistor box of a train generally has 48 brake resistor pads, and it would take about 12 hours for a single person to complete the task.

[0005] (2) Many factors affect the dust blowing effect of manual dust blowing, and the dust blowing cleaning quality is unstable, which can easily lead to local missed blowing or incomplete cleaning.

[0006] (3) The dust blown out cannot be centrally treated and uniformly discharged, which can easily cause pollution to the working environment.

[0007] (4) Strict personal protective equipment is required for manual dust blowing, otherwise it may affect the health of employees. Utility Model Content

[0008] The purpose of this invention is to provide an automatic dust blowing device for train brake resistors, so as to solve the above-mentioned problems existing in the manual dust blowing cleaning of brake resistors.

[0009] The specific technical solution adopted in this utility model is as follows:

[0010] An automatic dust blowing device for train brake resistors, which includes a dust blowing system, a dust removal system and an electrical control system.

[0011] The dust blowing system includes: a sealed dust blowing chamber with a double-leaf front door on the front side; a rotatable circular carrier plate supported by a frame installed inside the dust blowing chamber; the frame is a regular hexagonal frame, with a vertical support leg at each corner of the hexagon, and connecting rods connecting the six vertical support legs into an integral frame; each vertical support leg has an upward-extending fixed pulley at its upper end; the circular carrier plate has an inverted L-shaped circular frame, with the horizontal edge of the circular frame above the circular frame. The internal fixed frame supports two brackets, each composed of two horizontal longitudinal angle steels of unequal length and symmetrically spaced. The inner width of the bracket matches the width of the braking resistor pads, and the length of the bracket is sufficient to accommodate two braking resistor pads within the circular frame. A downward-extending insertion socket is welded to the lower part of the right angle steel of the left bracket and the left angle steel of the right bracket, at the corresponding center position of the circular frame. The circular carrier plate is supported by the vertical edge of the circular frame within the fixed pulley grooves at the upper end of each vertical support foot of the scaffold. A geared motor is mounted below the socket of the corresponding circular carrier. The output end of the geared motor is fixedly connected to the socket of the circular carrier via an upward-extending connecting shaft. The geared motor drives the circular carrier to rotate in place under the support of the fixed pulleys on the scaffold. Inside the dust blowing chamber, an air knife assembly is also mounted next to the circular carrier. The air knife assembly has a horizontally arranged dust blowing pipe on each of the upper and lower sides of the circular carrier, and the dust blowing pipes extend from the outside of the circular carrier to the center of the circular carrier. The ends of the two dust blowing pipes are located on the outer side of the circular carrier. The two dust-blowing pipes are connected to the air supply pipe extending into the dust-blowing chamber from the outside via a three-way connecting pipe. High-pressure air is supplied to the two dust-blowing pipes through the air supply pipe from the external air supply equipment. The ends of the two dust-blowing pipes located at the center of the circular carrier are sealed with plugs. The bottom of the upper dust-blowing pipe and the top of the lower dust-blowing pipe are respectively provided with a set of narrow slit nozzles arranged horizontally at intervals. The two sets of narrow slit nozzles are opposite each other, and the high-pressure airflow blown out by the two sets of narrow slit nozzles forms a section of air knife that sweeps vertically across half of the circular carrier between the upper and lower dust-blowing pipes.

[0012] The dust removal system includes: a dust removal outlet located on the lower side wall of one of the dust blowing chambers; a centrifugal fan and a dust removal device installed outside the dust blowing chambers; a lower air duct connected to the air inlet of the centrifugal fan at the dust removal outlet of the dust blowing chambers; and an upper air duct connected to the dust removal device at the air outlet of the centrifugal fan.

[0013] The electrical control system includes: a dust blowing control cabinet and a dust exhaust control cabinet, which respectively control the electrical control components of the dust blowing system and the dust exhaust system.

[0014] When this automatic dust blowing equipment for brake resistor sheets is in operation, the operator places four brake resistor sheets on the two brackets on the left and right sides of the circular carrier plate in the dust blowing chamber and closes the door. It can then be operated from the outside. Inside the dust blowing chamber, a geared motor drives the circular carrier plate carrying the brake resistor sheets to rotate in place. When the brake resistor sheets pass through the air knife, the air knife automatically performs double-sided dust blowing and cleaning on the brake resistor sheets. As the circular carrier plate rotates, the air knife can evenly sweep over every part of each brake resistor sheet, resulting in high work efficiency and stable dust blowing and cleaning quality. There will be no local missed areas or incomplete cleaning. The dust blown out of the dust blowing chamber is drawn into the dust removal device by a centrifugal fan for dust removal and cleaning before being discharged. Therefore, the entire dust blowing and discharge process will not affect the health of employees or cause pollution to the working environment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the automatic dust blowing device for the braking resistor sheet.

[0016] Figure 2 for Figure 1 Front view.

[0017] Figure 3 for Figure 1 A three-dimensional structural diagram of the dust blowing room when the top panel is removed and the front and rear doors are opened.

[0018] Figure 4 for Figure 3 Front view.

[0019] Figure 5 for Figure 3 A three-dimensional structural diagram of the dust blowing room.

[0020] Figure 6 for Figure 3 A three-dimensional structural diagram of the air knife component.

[0021] Figure 7 A three-dimensional structural diagram showing the assembly of the tripod, circular carrier plate, and air knife assembly.

[0022] Figure 8 for Figure 7 Front view.

[0023] Figure 9 This is a schematic diagram of the three-dimensional structure of a circular carrier disk.

[0024] Figure 10 This is a 3D structural diagram of the tripod (with the dust cover of the geared motor removed).

[0025] Figure 11 This is a three-dimensional structural diagram of the braking resistor.

[0026] Figure 12 for Figure 7 A schematic diagram of the three-dimensional structure after four braking resistor plates are placed on a circular carrier disk.

[0027] In the diagram: 1-Dust blowing room, 1.1-Front door, 1.2-Observation window, 1.3-Rear door, 1.4-Dust exhaust outlet, 1.5-Ventilation opening, 2-Standing frame, 2.1-Upright support leg, 2.2-Fixed pulley, 3-Circular tray, 3.1-Circular frame, 3.2-Bracket, 3.3-Socket, 3.4-Counterweight, 4-Gear motor, 4.1-Connecting shaft, 5-Air knife assembly, 5.1-Dust blowing pipe, 5.2-Air supply line, 5.3-Narrow slit nozzle, 6-Lower fixing rod, 7-Upper fixing rod, 8-Lighting fixture, 9-Dustproof sealing cover, 10-Centrifugal fan, 11-Lower duct, 12-Upper duct, 13-Dust monitoring device. Detailed Implementation

[0028] The present invention will be further described below with reference to the embodiments and accompanying drawings. In the description of the present invention, the directional terms "upper," "lower," "front," "rear," "left," and "right" are based on the accompanying drawings. Figure 1 The orientation or positional relationship shown is defined only for the convenience of describing this utility model, and does not refer to a specific orientation that the device or component must have, and should not be regarded as a limitation of this utility model.

[0029] like Figures 1-12 As shown, this automatic dust blowing equipment for brake resistor sheets is equipped with a dust blowing system, a dust removal system, and an electrical control system.

[0030] The dust blowing system includes: a sealed dust blowing chamber 1, with a double-opening front door 1.1 on the front side of the dust blowing chamber 1; a rotatable circular carrier 3 supported by a bracket 2 installed inside the dust blowing chamber 1; the bracket 2 is a regular hexagonal bracket, with a vertical support leg 2.1 at each corner of the regular hexagon, and a connecting rod connecting the six vertical support legs into an integral frame; each vertical support leg has an upwardly extending fixed pulley 2.2 mounted on its upper end; the circular carrier 3 has an inverted L-shaped circular frame 3.1, with left and right supports fixedly straddling the horizontal side of the circular frame 3.1. Two brackets 3.2, each bracket 3.2 consisting of two horizontal longitudinal angle steels of unequal length and symmetrically spaced on the left and right, with the inner width of the bracket 3.2 matching the width of the braking resistor pads, and the length of the bracket 3.2 sufficient to accommodate two braking resistor pads placed within the circular frame 3.1. A downwardly extending insertion socket 3.3 is welded together below the right angle steel of the left bracket 3.2 and the left angle steel of the right bracket 3.2 at the corresponding center position of the circular frame 3.1. The circular carrier 3 is supported by the vertical side of the circular frame 3.1 within the grooves of the fixed pulleys 2.2 at the upper end of each vertical support leg 2.1 of the leg 2. The leg 2... A geared motor 4 is mounted below the socket 3.3 corresponding to the circular carrier 3. The output end of the geared motor 4 is fixedly connected to the socket 3.3 of the circular carrier 3 via an upwardly extending connecting shaft 4.1. The geared motor 4 drives the circular carrier 3 to rotate in place under the support of the fixed pulley 2.2 of the stand 2. Inside the dust blowing chamber 1, an air knife assembly 5 is also mounted next to the circular carrier 3. The air knife assembly 5 has a horizontally arranged dust blowing pipe 5.1 on each of the upper and lower sides of the circular carrier 3, and the dust blowing pipes 5.1 extend from the outside of the circular carrier 3 towards the center of the circular carrier 3. The ends of the two dust blowing pipes 5.1 are located on the outside of the circular carrier 3. The three-way connecting pipes are connected to the air supply pipe 5.2 that extends into the dust blowing chamber 1 from the outside. The external air supply equipment supplies high-pressure air to the two dust blowing pipes 5.1 through the air supply pipe 5.2. The ends of the two dust blowing pipes 5.1 located at the center of the circular carrier 3 are sealed with plugs. The bottom of the upper dust blowing pipe 5.1 and the top of the lower dust blowing pipe 5.1 are respectively provided with a set of horizontally spaced narrow slit nozzles 5.3. The two sets of narrow slit nozzles 5.3 are opposite each other. The high-pressure airflow blown out by the two sets of narrow slit nozzles 5.3 forms a section of air knife that sweeps vertically across half of the circular carrier 3 between the upper and lower dust blowing pipes 5.1.

[0031] Furthermore, the upper and lower sets of narrow slit nozzles 5.3 are arranged in a staggered, overlapping, triangular pattern in the horizontal position, so that the high-pressure airflow blown out by the two sets of narrow slit nozzles 5.3 forms a continuously distributed air knife between the upper and lower dust blowing pipes 5.1. At the same time, the upward and downward airflows form an interlaced friction, thereby enabling double-sided friction dust blowing on the brake pads placed on the circular carrier plate 3 from both the upper and lower sides, resulting in a better overall cleaning effect on the brake pads.

[0032] Furthermore, a lower fixing rod 6 is mounted on the upper part of the bracket 2 to fix the lower dust blowing pipe 5.1, and an upper fixing rod 7 is mounted on the frame of the dust blowing chamber 1 to fix the upper dust blowing pipe 5.1.

[0033] Furthermore, counterweights 3.4 are installed on the circular carrier 3 between the left side of the left bracket 3.2 and the circular frame 3.1, and between the right side of the right bracket 3.2 and the circular frame 3.1, respectively, so as to maintain a more balanced and stable position when the circular carrier 3 rotates in place after the braking resistor sheet is placed on it.

[0034] Furthermore, a lighting fixture 8 is installed on the ceiling of the dust blowing chamber 1 to provide illumination. An observation window 1.2 is provided on the side wall of the dust blowing chamber 1 to allow external observation of the internal working conditions during automatic dust blowing operations. A single-opening rear door 1.3 is also provided on the rear side of the dust blowing chamber 1 for easy maintenance and repair.

[0035] Furthermore, the geared motor 4 is equipped with a dustproof sealing cover 9 to completely cover it, so as to prevent dust from falling into its moving parts and affecting its operation or causing damage.

[0036] The dust removal system includes: a dust outlet 1.4 located on the lower side wall of one of the dust blowing chambers 1; a centrifugal fan 10 and a dust removal device installed outside the dust blowing chamber 1; a lower air duct 11 connected to the air inlet of the centrifugal fan 10 at the dust outlet 1.4 of the dust blowing chamber 1; and an upper air duct 12 connected to the dust removal device at the air outlet of the centrifugal fan 10.

[0037] Furthermore, the dust removal device is composed of a front-stage settling dust removal chamber and a rear-stage bag filter. The dust-laden air discharged from the centrifugal fan 10 passes through the settling dust removal chamber and the bag filter in sequence before being discharged to the outside.

[0038] The electrical control system includes: a dust blowing control cabinet and a dust exhaust control cabinet, which respectively control the electrical components of the dust blowing system and the dust exhaust system (not shown in the attached drawings). Furthermore, the dust blowing control cabinet is equipped with a variable frequency controller to control the speed of the geared motor 4 of the dust blowing system, and the dust exhaust control cabinet is equipped with a variable frequency controller to control the speed of the centrifugal fan 10 of the dust exhaust system.

[0039] This automatic dust blowing equipment for brake resistor sheets is also equipped with a safety auxiliary system, which includes: a dust monitoring device 13 inside the dust blowing chamber 1, and an audible and visual alarm outside the dust blowing chamber 1. The dust monitoring device 13 is connected to the audible and visual alarm via wiring to monitor the dust concentration in the dust blowing chamber 1 and prevent dust explosions. A ventilation opening 1.5 is also provided on the top of the dust blowing chamber 1. The ventilation opening 1.5 is designed with a closed top surface and louvered air vents on the surrounding side walls to reduce the dust concentration in the dust blowing chamber 1 during automatic dust blowing operations. All metal parts inside the dust blowing chamber 1 are equipped with electrostatic grounding bodies to prevent static electricity from igniting dust. All power supply lines inside the dust blowing chamber 1 are covered with insulating sleeves to prevent electric shock.

[0040] The working process of this automatic dust blowing equipment for brake resistors is as follows:

[0041] (1) Open the dust blowing chamber 1 and manually place the four brake resistor plates to be cleaned on the two brackets 3.2 on the left and right sides of the circular carrier plate 3 of the dust blowing chamber 1. After closing the dust blowing chamber 1, the equipment can be operated in the dust blowing control cabinet and dust discharge control cabinet outside the dust blowing chamber 1. The dust blowing system and dust discharge system will automatically carry out dust blowing and dust discharge work according to the set parameters.

[0042] (2) When the dust blowing system is working, the circular carrier plate 3 carrying the brake resistor sheet is driven by the geared motor 4 to rotate in place above the stand 2 in the dust blowing chamber 1. When the brake resistor sheet passes the air knife, the air knife automatically blows dust and cleans the brake resistor sheet from both the top and bottom. As the circular carrier plate 3 rotates, the air knife can evenly sweep across every part of each brake resistor sheet. Four brake resistor sheets can be blown and cleaned at one time. The operation efficiency is high and the dust blowing and cleaning quality is stable.

[0043] (3) When the dust removal system is working, the dust blown out of the dust blowing room 1 is drawn out by the centrifugal fan 10. The dust-laden air discharged by the centrifugal fan 10 first enters the settling dust removal chamber in front of the dust removal device for settling dust removal, and then enters the bag filter in the back of the dust removal device for filtration dust removal, so that the dust can be collected and treated in a centralized manner and clean discharge can be achieved.

[0044] The above illustrations are merely typical embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic dust blowing device for train brake resistors, characterized in that: The automatic dust blowing equipment for the brake resistor sheet is equipped with a dust blowing system, a dust removal system, and an electrical control system; The dust blowing system includes: a sealed dust blowing chamber (1), a double-opening front door (1.1) on the front side of the dust blowing chamber (1), and a rotatable circular carrier plate (3) supported by a bracket (2) installed inside the dust blowing chamber (1); the bracket (2) is a regular hexagonal bracket (2), with a vertical support leg (2.1) at each corner of the regular hexagon, and a connecting rod connecting the six vertical support legs (2.1) into an integral frame, with a fixed pulley (2.2) extending upward at the upper end of each vertical support leg (2.1); the circular carrier plate (3) has a circular frame (3.1) with an inverted L-shaped cross section, and a fixed span is fixed above the horizontal edge of the circular frame (3.1) inside the circular frame (3.1). The frame is supported by two brackets (3.2) on the left and right. Each bracket (3.2) consists of two horizontal longitudinal angle steels of different lengths and symmetrically placed on the left and right. The inner width of the bracket (3.2) matches the width of the braking resistor sheet. The length of the bracket (3.2) is sufficient to accommodate two braking resistor sheets placed inside the circular frame (3.1). The right angle steel of the left bracket (3.2) and the left angle steel of the right bracket (3.2) are welded together at the center of the corresponding circular frame (3.1) to form a downward-extending insertion socket (3.3). The circular carrier (3) is supported by the vertical side of the circular frame (3.1) in the groove of the fixed pulley (2.2) at the upper end of each vertical support foot (2.1) of the leg (2). A geared motor (4) is mounted below the socket (3.3) of the circular carrier (3). The output end of the geared motor (4) is fixedly connected to the socket (3.3) of the circular carrier (3) via an extended connecting shaft (4.1). The geared motor (4) drives the circular carrier (3) to rotate in place under the support of the fixed pulley (2.2) of the stand (2). An air knife assembly (5) is also mounted on the side of the circular carrier (3) in the dust blowing room (1). The air knife assembly (5) has a horizontally arranged dust blowing pipe (5.1) on each of the upper and lower sides of the circular carrier (3). The dust blowing pipe (5.1) extends from the outside of the circular carrier (3) toward the center of the circular carrier (3). The two dust blowing pipes (5.1) are located on the circular carrier. The outer end of the disc (3) is connected to the air supply pipe (5.2) extending into the dust blowing room (1) from the outside via a three-way connecting pipe. High-pressure air is supplied to the two dust blowing pipes (5.1) by the external air supply equipment through the air supply pipe (5.2). The ends of the two dust blowing pipes (5.1) located in the center of the circular carrier disc (3) are sealed with plugs. The bottom of the upper dust blowing pipe (5.1) and the top of the lower dust blowing pipe (5.1) are respectively provided with a set of horizontally spaced narrow slit nozzles (5.3). The two sets of narrow slit nozzles (5.3) are opposite each other. The high-pressure airflow blown out by the two sets of narrow slit nozzles (5.3) forms a section of air knife that sweeps vertically across half of the circular carrier disc (3) between the upper and lower dust blowing pipes (5.1). The dust removal system includes: a dust outlet (1.4) is provided at the lower position of one side wall of the dust blowing chamber (1); a centrifugal fan (10) and a dust removal device are installed outside the dust blowing chamber (1); the dust outlet (1.4) of the dust blowing chamber (1) is provided with a lower air pipe (11) connected to the air inlet of the centrifugal fan (10); and the air outlet of the centrifugal fan (10) is connected to the dust removal device through an upper air pipe (12). The electrical control system includes: a dust blowing control cabinet and a dust exhaust control cabinet, which respectively control the electrical control components of the dust blowing system and the dust exhaust system.

2. The automatic dust blowing device for train brake resistors according to claim 1, characterized in that: The upper and lower sets of narrow slit nozzles (5.3) are arranged in a staggered, overlapping pattern in the horizontal position, so that the high-pressure airflow blown out by the two sets of narrow slit nozzles (5.3) forms a continuously distributed air knife between the upper and lower dust blowing pipes (5.1), and the upward airflow and the downward airflow form an interlaced friction.

3. The automatic dust blowing device for train brake resistors according to claim 1, characterized in that: The lower fixing rod (6) is mounted on the upper part of the bracket (2) to fix the lower dust blowing pipe (5.1), and the upper fixing rod (7) is mounted on the frame of the dust blowing room (1) to fix the upper dust blowing pipe (5.1).

4. The automatic dust blowing device for train brake resistors according to claim 1, characterized in that: The circular carrier (3) has counterweights (3.4) installed between the left side of the left bracket (3.2) and the circular frame (3.1), and between the right side of the right bracket (3.2) and the circular frame (3.1).

5. The automatic dust blowing device for train brake resistors according to claim 1, characterized in that: The dust blowing chamber (1) is equipped with lighting fixtures (8) on the top; the dust blowing chamber (1) has observation windows (1.2) on the side wall; and the dust blowing chamber (1) also has a single-opening rear door (1.3) on the rear side.

6. The automatic dust blowing device for train brake resistors according to claim 1, characterized in that: The geared motor (4) is equipped with a dustproof sealing cover (9) to cover the entire motor.

7. The automatic dust blowing device for train brake resistors according to claim 1, characterized in that: The dust removal device is composed of a front-stage settling dust removal chamber and a rear-stage bag filter.

8. The automatic dust blowing device for train brake resistors according to claim 1, characterized in that: The dust blowing control cabinet is equipped with a variable frequency controller to control the speed of the geared motor (4) of the dust blowing system, and the dust discharge control cabinet is equipped with a variable frequency controller to control the speed of the centrifugal fan (10) of the dust discharge system.

9. The automatic dust blowing device for train brake resistors according to claim 1, characterized in that: The automatic dust blowing equipment for the brake resistor sheet is also equipped with a safety auxiliary system, which includes: a dust monitoring device (13) in the dust blowing room (1) and an audible and visual alarm outside the dust blowing room (1). The dust monitoring device (13) is connected to the audible and visual alarm by a line. A ventilation opening (1.5) is also provided on the top of the dust blowing room (1). The ventilation opening (1.5) is designed with a closed top surface and louvered air vents on the four sides. All metal parts in the dust blowing room (1) are equipped with static grounding bodies. All power supply lines in the dust blowing room (1) are covered with insulating sleeves.

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