Electric locomotive filter screen cleaning device

Abstract

The utility model discloses an electric locomotive filter screen cleaning device, which belongs to the technical field of electric locomotives and comprises a metal brush, a brush hanging plate is arranged on the upper portion of the metal brush, screw nuts are arranged on two sides of the upper portion of the brush hanging plate, and the screw nuts are in threaded connection with a ball screw. The two ball screws are rotationally connected between the reversing assembly and the screw support, the reversing assembly is connected with the gear transmission assembly through the transmission shaft, the filter screen does not need to be manually disassembled, the filter screen at the air inlet of the electric locomotive can be regularly cleaned, the filter screen is convenient to clean, and the requirement for long-time operation of the electric locomotive is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric locomotives, in particular to a filter cleaning device for an electric locomotive. Background Art

[0002] During normal operation, electric locomotives draw in large quantities of outside air through their air intakes for ventilation and cooling. However, every spring, during the peak season for poplar and willow catkins in parts of northern China, the flying catkins can easily clog the air intake filters, impacting the normal operation of electric locomotives.

[0003] A Chinese invention patent, publication number CN113856327A, discloses a metal filter cleaning machine suitable for high-speed railways and locomotives. The device delivers the filter into the machine through a conveying mechanism, and then uses a burning fan and a purge fan above the device to blow and purge the filter in sequence. At the same time, a water tank below the device is used to adsorb floating objects, and the metal filter is cleaned in the form of a streamlined operation. The above method requires the filter to be disassembled and is restricted by site conditions, making the filter cleaning inconvenient, which conflicts with the long-term operation requirements of electric locomotives. In addition, the usual filter cleaning method is mostly to disassemble the filter after the electric locomotive has been running for a period of time, and clean the filter by manual cleaning, ultrasonic cleaning device, etc. Utility Model Content

[0004] The purpose of the present invention is to provide an electric locomotive filter cleaning device to solve at least one aspect of the problems and defects raised in the above-mentioned background technology.

[0005] Provided is an electric locomotive filter cleaning device, comprising a metal brush, a brush hanging plate being provided on the upper portion of the metal brush, screw nuts being provided on both sides of the upper portion of the brush hanging plate, the screw nuts being threadedly connected to a ball screw, the two ball screws being rotatably connected between a reversing assembly and a screw support, and the reversing assembly being connected to a gear transmission assembly via a transmission shaft.

[0006] Furthermore, the reversing assembly includes a reversing box, a first bevel gear, a screw nut and a second bevel gear, a ball screw is rotatably connected in the reversing box, the screw nut is fixedly connected to the ball screw, the upper part of the screw nut is fixedly connected to the first bevel gear, the first bevel gear is meshed and connected to the second bevel gear, the second bevel gear is fixedly connected to a transmission shaft, and the transmission shafts are all connected to a gear transmission assembly. When the gear transmission assembly is driven, power is transmitted to the transmission shaft, and the power on the transmission shaft is transmitted to the second bevel gear, and the second bevel gear is engaged with the first bevel gear. When meshing, the rotation of the first bevel gear will drive the connected screw nut to rotate together. The screw nut is fixed on the ball screw. As the ball screw rotates, the ball screw will drive the screw nut to move linearly on the ball screw, thereby converting the rotational motion into linear motion. During the power transmission process, the linear movement of the ball screw drives the metal brush to clean along the surface of the filter, realizing automated cleaning operation. The reversing assembly converts the direction of the rotational power through the reversing of the second bevel gear and the first bevel gear, and further realizes the reciprocating motion of the metal brush with the help of the rotation of the ball screw.

[0007] Furthermore, the gear transmission assembly includes a gear box, a stepper motor, a first gear, a second gear, an output shaft, a third gear, a fourth gear, a fifth gear and a sixth gear. The gear box is rotatably connected to a transmission shaft. The stepper motor is arranged in the gear box. The output end of the stepper motor is fixedly connected to the first gear, the first gear is meshed with the second gear, the second gear is fixedly connected to the output shaft, the output shaft is rotatably connected in the gear box, the third gear and the fourth gear are fixedly connected on both sides of the upper part of the output shaft, the third gear and the fourth gear are meshed with the fifth gear and the sixth gear, the fifth gear and the sixth gear are fixedly connected to the transmission shaft, and the stepper motor rotates with the first gear. The first gear rotates, the first gear drives the second gear to rotate, and the second gear drives the output shaft to rotate, so its rotation drives the output shaft to rotate synchronously, and the output shaft rotates, driving the third gear and the fourth gear fixed on the upper part of the driver to rotate, and the third gear and the fourth gear are respectively engaged with the fifth gear and the sixth gear, driving the fifth gear and the sixth gear to rotate, and then driving the transmission shaft to rotate in the gear box, and finally transmitting the power from the gear box to the transmission shaft, and further to the reversing assembly, driving the ball screw to drive the metal brush and the brush suspension plate to move. The gear transmission assembly successfully realizes the amplification and distribution of the motor power through the transmission structure of the stepper motor and the multi-stage gear set, so that the transmission shaft can stably and accurately drive the cleaning device to move.

[0008] Furthermore, a motor fixing bracket is provided at the bottom of the stepper motor, and the motor fixing bracket is arranged in the gear box. The motor fixing bracket is firmly installed inside the gear box. The motor fixing bracket firmly connects the stepper motor to the gear box, thereby preventing the stepper motor from being displaced or vibrating due to the rotational torque during operation.

[0009] Furthermore, the gear transmission assembly also includes a wind pressure transmitter, which is arranged in the gear box. The wind pressure transmitter is used to detect the wind pressure difference on both sides of the filter. The wind pressure transmitter collects wind pressure data in real time. When the wind pressure of the filter decreases or the resistance increases due to dust accumulation, when the wind pressure transmitter detects that the wind pressure drops to a preset threshold (indicating that the filter is clogged to the extent that it needs to be cleaned), it will send a signal to the engineering control panel to trigger the gear transmission assembly. When the gear transmission assembly is driven, power is transmitted to the drive shaft through the reversing assembly to drive the reciprocating motion of the metal brush to automatically clean the filter.

[0010] Furthermore, the gear transmission assembly also includes an engineering control board and a motor driver. The engineering control board is electrically connected to the motor driver and the wind pressure transmitter. The motor driver is electrically connected to the stepper motor. The engineering control board and the motor driver are arranged in the gear box. The engineering control board, as the core of the entire control system, is connected to the wind pressure transmitter and the motor driver. It is responsible for receiving and processing real-time data from the wind pressure transmitter. According to the wind pressure of the filter, the engineering control board can determine whether it is necessary to start the cleaning program, thereby realizing centralized control. When the wind pressure transmitter detects that the wind pressure value drops to the set threshold, the engineering control board receives a signal and instructs the motor driver to drive the stepper motor to start. After receiving the instruction, the motor driver controls the stepper motor to operate at the specified speed and number of steps, thereby driving the gear set transmission to start the cleaning operation. Precise speed and position control: The motor driver is electrically connected to the stepper motor and can precisely control the operation of the stepper motor, including the speed, rotation angle and direction. This precise control ensures that the movement of the cleaning brush can be carried out according to the set trajectory and speed, making the filter cleaning process efficient and uniform.

[0011] Furthermore, the brush hanging plate is detachably connected to a metal brush. When the metal brush becomes worn, degraded, or has poor cleaning effect due to long-term use, it can be quickly removed from the brush hanging plate and replaced with a new one. This eliminates the need to replace the entire device, thereby reducing maintenance costs and time.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] When the gear transmission assembly detects that the wind pressure of the filter has dropped to a certain value, the gear transmission assembly is driven, and the power is transmitted to the ball screw through the reversing assembly. The rotation of the ball screw is converted into the translation of the screw nut along the ball screw, thereby driving the metal brush to clean the filter. In this process, the reversing assembly realizes the reversal of power transmission, and the ball screw and screw nut realize the conversion of motion form. There is no need to manually disassemble the filter, and the filter at the air inlet of the electric locomotive can be cleaned regularly, making the filter easy to clean to meet the needs of long-term operation of the electric locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of an electric locomotive filter cleaning device;

[0016] Figure 2 A schematic diagram of the internal structure of the reversing assembly provided by the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the gear transmission assembly provided by the present utility model.

[0018] In the figure: 1. Metal brush; 2. Brush hanging plate; 3. Screw support; 4. Ball screw; 5. Screw nut; 6. Reversing assembly; 61. Reversing box; 62. First bevel gear; 63. Screw nut; 64. Second bevel gear; 7. Drive shaft; 8. Gear transmission assembly; 81. Gear box; 82. Stepper motor; 83. First gear; 84. Second gear; 85. Output shaft; 86. Third gear; 87. Fourth gear; 88. Fifth gear; 89. Sixth gear; 9. Motor fixing bracket; 10. Wind pressure transmitter; 11. Engineering control board; 12. Motor driver. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-3 As shown, in an embodiment of the present invention, an electric locomotive filter cleaning device includes a metal brush 1, a brush hanging plate 2 is provided on the upper portion of the metal brush 1, screw nuts 5 are provided on both sides of the upper portion of the brush hanging plate 2, the screw nuts 5 are threadedly connected to the ball screw 4, the two ball screws 4 are rotatably connected between the reversing assembly 6 and the screw support 3, and the reversing assembly 6 is connected to the gear transmission assembly 8 through the transmission shaft 7;

[0026] The gear transmission assembly 8 can detect the wind pressure of the filter. If the wind pressure drops to a certain threshold, the assembly will start. After the gear transmission assembly 8 is started, the gear transmission assembly 8 transmits power to the reversing assembly 6, and then the reversing assembly 6 transmits power to the ball screw 4 to realize the conversion of power direction to meet the linear motion requirements of the metal brush 1 cleaning. The ball screw 4 drives the screw nut 5 to move along the ball screw 4 through rotation. The translation of the screw nut 5 further drives the metal brush 1 suspended thereon to perform linear cleaning along the surface of the filter. Through the above-mentioned transmission principle, the device enables the metal brush 1 to automatically clean the filter regularly, thereby maintaining the ventilation capacity of the filter to meet the needs of the long-term operation environment of the electric locomotive, reducing the poor ventilation caused by filter blockage, ensuring the normal heat dissipation and operation of the locomotive, without the need for manual removal of the filter, and can regularly clean the filter at the air inlet of the electric locomotive, making the filter cleaning convenient to meet the needs of long-term operation of the electric locomotive.

[0027] In one embodiment, see Figure 1 and Figure 2 As shown, the reversing assembly 6 includes a reversing box 61, a first bevel gear 62, a screw nut 63 and a second bevel gear 64. The ball screw 4 is rotatably connected in the reversing box 61, the screw nut 63 is fixedly connected to the ball screw 4, the upper part of the screw nut 63 is fixedly connected to the first bevel gear 62, the first bevel gear 62 is meshed with the second bevel gear 64, the second bevel gear 64 is fixedly connected to the transmission shaft 7, and the transmission shaft 7 is connected to the gear transmission assembly 8. When the gear transmission assembly 8 is driven, power is transmitted to the transmission shaft 7, and the power on the transmission shaft 7 is transmitted to the second bevel gear 64. The second bevel gear 64 is meshed with the first bevel gear 62. The meshing, rotation of the first bevel gear 62 will drive the connected screw nut 63 to rotate together, and the screw nut 63 is fixed on the ball screw 4. As the ball screw 4 rotates, the ball screw 4 will drive the screw nut 5 to move linearly on the ball screw 4, thereby converting the rotational motion into linear motion. During the power transmission process, the linear movement of the ball screw 4 drives the metal brush 1 to clean along the surface of the filter, realizing automated cleaning operation. The reversing assembly 6 reverses the direction of the rotational power with the first bevel gear 62 through the second bevel gear 64, and further realizes the reciprocating motion of the metal brush 1 with the help of the rotation of the ball screw 4.

[0028] In one embodiment, see Figure 1 and Figure 3As shown, the gear transmission assembly 8 includes a gear box 81, a stepper motor 82, a first gear 83, a second gear 84, an output shaft 85, a third gear 86, a fourth gear 87, a fifth gear 88 and a sixth gear 89. The gear box 81 is rotatably connected to the transmission shaft 7. The stepper motor 82 is arranged in the gear box 81. The output end of the stepper motor 82 is fixedly connected to the first gear 83. The first gear 83 is meshed with the second gear 84. The second gear 84 is fixedly connected to the output shaft 85. The output shaft 85 is rotatably connected to the gear box 81. The upper two sides of the output shaft 85 are respectively fixedly connected to the third gear 86 and the fourth gear 87. The third gear 86 and the fourth gear 87 are respectively meshed with the fifth gear 88 and the sixth gear 89. The fifth gear 88 and the sixth gear 89 are fixedly connected to the transmission shaft 7. The stepper motor 82 is installed in the gear box 81 to provide power. The force is applied, the stepper motor 82 rotates to drive the first gear 83 to rotate, the first gear 83 drives the second gear 84 to rotate, and the second gear 84 drives the output shaft 85 to rotate, so its rotation drives the output shaft 85 to rotate synchronously, the output shaft 85 rotates, and the third gear 86 and the fourth gear 87 fixed on the upper part of the driver rotate, the third gear 86 and the fourth gear 87 are respectively engaged with the fifth gear 88 and the sixth gear 89, driving the fifth gear 88 and the sixth gear 89 to rotate, thereby driving the transmission shaft 7 to rotate in the gear box 81, and finally transmitting the power from the gear box 81 to the transmission shaft 7, and further transmitting it to the reversing assembly 6, driving the ball screw 4 to drive the metal brush 1 and the brush suspension plate 2 to move, and the gear transmission assembly 8 successfully realizes the amplification and distribution of the motor power through the transmission structure of the stepper motor 82 and the multi-stage gear set, so that the transmission shaft 7 can stably and accurately drive the cleaning device to move.

[0029] In one embodiment, see Figure 1 and Figure 3 As shown, a motor fixing bracket 9 is provided at the bottom of the stepper motor 82, and the motor fixing bracket 9 is provided in the gear box 81. The motor fixing bracket 9 is firmly installed inside the gear box 81. The motor fixing bracket 9 firmly connects the stepper motor 82 in the gear box 81, thereby preventing the stepper motor 82 from being displaced or vibrated due to the rotational torque during operation.

[0030] In one embodiment, see Figure 1 and Figure 3As shown, the gear transmission assembly 8 also includes a wind pressure transmitter 10, which is arranged in the gear box 81. The wind pressure transmitter 10 is used to detect the wind pressure difference on both sides of the filter. The wind pressure transmitter 10 collects wind pressure data in real time. When the wind pressure of the filter decreases or the resistance increases due to dust accumulation, when the wind pressure transmitter 10 detects that the wind pressure drops to a preset threshold (indicating that the filter is clogged to the extent that it needs to be cleaned), it will send a signal to the engineering control board 11 to trigger the gear transmission assembly 8. When the gear transmission assembly 8 is driven, power is transmitted to the drive shaft 7 to drive the reciprocating motion of the metal brush 1 through the reversing assembly 6 to automatically clean the filter.

[0031] In one embodiment, see Figure 1 and Figure 3 As shown, the gear transmission assembly 8 also includes an engineering control board 11 and a motor driver 12. The engineering control board 11 is electrically connected to the motor driver 12 and the wind pressure transmitter 10. The motor driver 12 is electrically connected to the stepper motor 82. The engineering control board 11 and the motor driver 12 are arranged in the gear box 81. The engineering control board 11 is the core of the entire control system and is connected to the wind pressure transmitter 10 and the motor driver 12. It is responsible for receiving the real-time data of the wind pressure transmitter 10 and processing it. According to the wind pressure of the filter, the engineering control board 11 can determine whether it is necessary to start the cleaning program, thereby achieving Centralized control: when the wind pressure transmitter 10 detects that the wind pressure value drops to the set threshold, the engineering control board 11 receives the signal and instructs the motor driver 12 to drive the stepper motor 82 to start. After receiving the instruction, the motor driver 12 controls the stepper motor 82 to operate at the specified speed and number of steps, thereby driving the gear set to start the cleaning operation. The motor driver 12 is electrically connected to the stepper motor 82 and can precisely control the operation of the stepper motor 82, including the speed, rotation angle and direction, to ensure that the movement of the metal brush 1 can be carried out according to the set trajectory and speed, making the filter cleaning process efficient and uniform.

[0032] In one embodiment, see Figure 1 and Figure 3 As shown, the metal brush 1 is detachably connected to the brush hanging plate 2. When the metal brush 1 becomes worn, its performance degrades, or its cleaning effect becomes poor due to long-term use, it can be quickly removed from the brush hanging plate 2 and replaced with a new brush. This eliminates the need to replace the entire device, thereby reducing maintenance costs and time.

[0033] The above content is merely an example and explanation of the structure of the present utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the scope of protection of the present utility model.

Claims

1. An electric locomotive filter cleaning device, comprising a metal brush (1), characterized in that: A brush hanging plate (2) is provided on the upper part of the metal brush (1), and screw nuts (5) are provided on both sides of the upper part of the brush hanging plate (2). The screw nuts (5) are both threadedly connected to the ball screw (4), and the two ball screws (4) are both rotatably connected between the reversing assembly (6) and the screw support (3). The reversing assembly (6) is connected to the gear transmission assembly (8) through a transmission shaft (7).

2. The electric locomotive filter cleaning device according to claim 1, characterized in that: The reversing assembly (6) comprises a reversing box (61), a first bevel gear (62), a screw nut (63) and a second bevel gear (64); a ball screw (4) is rotatably connected in the reversing box (61); the screw nut (63) is fixedly connected to the ball screw (4); the upper part of the screw nut (63) is fixedly connected to the first bevel gear (62); the first bevel gear (62) is meshedly connected to the second bevel gear (64); the second bevel gear (64) is fixedly connected to a transmission shaft (7); and the transmission shaft (7) is connected to a gear transmission assembly (8).

3. The electric locomotive filter cleaning device according to claim 2, characterized in that: The gear transmission assembly (8) comprises a gear box (81), a stepper motor (82), a first gear (83), a second gear (84), an output shaft (85), a third gear (86), a fourth gear (87), a fifth gear (88) and a sixth gear (89), wherein the gear box (81) is rotatably connected to a transmission shaft (7), the stepper motor (82) is arranged in the gear box (81), and an output end of the stepper motor (82) is fixedly connected to the first gear (83), and the first gear (83) is engaged with the transmission shaft (7). The second gear (84) is connected to the gear box (81), and the second gear (84) is fixedly connected to the output shaft (85). The output shaft (85) is rotatably connected to the gear box (81). The upper two sides of the output shaft (85) are respectively fixedly connected to the third gear (86) and the fourth gear (87). The third gear (86) and the fourth gear (87) are respectively meshed with the fifth gear (88) and the sixth gear (89). The fifth gear (88) and the sixth gear (89) are fixedly connected to the transmission shaft (7).

4. The electric locomotive filter cleaning device according to claim 3, characterized in that: A motor fixing bracket (9) is provided at the bottom of the stepping motor (82), and the motor fixing bracket (9) is arranged in the gear box (81).

5. The electric locomotive filter cleaning device according to claim 3, characterized in that: The gear transmission assembly (8) further includes a wind pressure transmitter (10), and the wind pressure transmitter (10) is arranged in the gear box (81).

6. The electric locomotive filter cleaning device according to claim 5, characterized in that: The gear transmission assembly (8) further comprises an engineering control panel (11) and a motor driver (12), wherein the engineering control panel (11) is electrically connected to the motor driver (12) and the wind pressure transmitter (10), and the motor driver (12) is electrically connected to a stepping motor (82), and the engineering control panel (11) and the motor driver (12) are arranged in a gear box (81).

7. The electric locomotive filter cleaning device according to claim 1, characterized in that: The brush hanging plate (2) is detachably connected to a metal brush (1).

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