Train washing machine rotating brush brushing effect experimental equipment

Abstract

The utility model relates to a train cleaning machine rotating brush brush washing effect experiment equipment, main include friction X direction slide plate assembly device, normal pressure Y direction sliding frame assembly device, base assembly device, train cleaning experiment machine, water supply system and electrical control system, wherein, X direction slide plate as the force body of direct contact with the brush, through the support rail sliding connection in Y direction sliding frame, Y direction sliding frame is through the support rail sliding connection in base, and is equipped with X direction and Y direction's tension and pressure sensor and adjustable counterweight, is used for respectively accurate measurement in the brush washing process friction and normal pressure. The equipment can simulate different brush material, eat hair depth and brush axle rotating speed, thereby providing the basis for train cleaning machine optimization brush selection and working parameter, to improve the car wash quality and control cost.

Description

Technical Field

[0001] This utility model relates to the field of railway train exterior cleaning technology, and in particular to a test device for the washing effect of a train cleaning machine with rotating brushes. Background Technology

[0002] Automatic train exterior cleaning machines are widely used on subways and high-speed trains. Every day, a large number of trains enter the cleaning depot to clean their bodies. Different brush bristle materials, brush shaft speeds, and bristle depths have a significant impact on the cleaning effect, directly determining the cleanliness of the train's appearance after cleaning. Therefore, developing a train cleaning machine rotating brush cleaning effect experimental device is of great significance. Utility Model Content

[0003] The purpose of this application is to provide a test device for the cleaning effect of a train cleaning machine with rotating brushes. This device can directly measure the friction and normal pressure on the train body under different brush materials, brush shaft speeds, and brush depths, and indirectly determine the cleaning effect on the train exterior under different brush materials, brush shaft speeds, and brush depths.

[0004] To achieve the above objectives, this application provides the following technical solution: a train cleaning machine rotating brush washing effect test device, including a set of friction force X direction sliding plate assembly device, a set of normal pressure Y direction sliding frame assembly device, a set of base assembly device, a train cleaning test machine, a set of water supply system and electrical control system; A friction force X-direction sliding plate assembly device consists of an X-direction sliding plate, a sliding plate mounting base, and a protective cover. The X-direction sliding plate, as the force measuring body that directly contacts the brush bristles, is welded from aluminum alloy plates and aluminum alloy square steel tubes. While ensuring the strength of the equipment, its own weight is minimized as much as possible, thereby reducing the impact of friction between the support guide rail and the box unit on the measurement accuracy. The aluminum alloy plate surface is hard anodized to ensure that the plate surface in contact with the brush bristles does not rust and is wear-resistant during the use of the brush bristles in water spraying. A set of positive pressure Y-direction sliding frame assembly device consists of a Y-direction sliding frame, an X-direction support guide rail and box unit, nylon pulleys, an X-direction counterweight, and an X-direction tension and compression sensor. The X-direction slide plate is connected to the support guide rail and box unit installed on the Y-direction sliding frame. The slide plate and box unit can slide back and forth on the support guide rail. One side of the X-direction slide plate is connected to the tension and compression sensor via a steel wire rope. The tension and compression sensor is fixed on the mounting base of the Y-direction sliding frame. The other side is connected to the X-direction counterweight via a steel wire rope passing around the pulley. The weight of the counterweight is slightly greater than the maximum static friction force of the X-direction slide plate sliding on the support guide rail, thus eliminating the influence of static friction force on the measurement accuracy. A base assembly device consists of a base, a Y-axis support rail and box-type unit, nylon pulleys, a Y-axis counterweight, a force gauge mounting base, a Y-axis tension / compression sensor, and a mounting bracket. The Y-axis sliding frame is connected to the box-type unit mounted on the base. The sliding frame and the box-type unit can slide back and forth on the support rail. One side of the Y-axis sliding frame is connected to the tension / compression sensor by a steel wire rope that passes around the pulley. The other end of the tension / compression sensor is fixed to the mounting base and connected to the base. The other side is connected to the Y-axis counterweight by a steel wire rope. The weight of the counterweight can be adjusted. After adjustment, the weight is greater than the maximum static friction of the entire Y-axis frame sliding on the support rail, thereby eliminating the influence of friction on measurement accuracy in the Y-axis direction. A train cleaning experimental machine consists of a base, a C-shaped frame, a brush shaft and bristle assembly, and an electro-hydraulic actuator. The train cleaning experimental machine is driven by a motor to rotate the brush shaft, which in turn drives the bristles to brush the X-axis slide plate. The electro-hydraulic actuator with a position sensor controls the depth of the bristles during the brushing process. A water supply system consists of a water tank, pipelines, solenoid valves, spray pipes, and pumps, which mainly provide the necessary clean water for the brushing experiment. The electrical control system controls the brush shaft to rotate at different speeds via a frequency converter.

[0005] Preferably, the X-axis slide assembly device is welded from aluminum alloy 6061-T6 profile and aluminum alloy plate. This ensures that the slide does not deform under the force of the brush bristles, while also reducing the weight of the equipment and minimizing the impact of friction on measurement accuracy in the X-axis. The aluminum alloy plate is treated with hard anodizing, ensuring that the aluminum alloy panel will not wear or rust under repeated brushing experiments.

[0006] Preferably, the Y-axis frame sliding assembly device consists of a sliding frame, an X-axis support rail and box-type unit, nylon pulleys, an X-axis counterweight, and an X-axis tension / compression sensor. During the brush rotation and friction with the X-axis sliding plate, the extremely low coefficient of friction between the support rail and box-type unit, and between the nylon pulley and the steel wire rope, ensures the accuracy of the experimental data. The X-axis tension / compression sensor has a measurement accuracy of 0.1N, which can accurately measure the frictional force between the rotating brush bristles and the X-axis sliding plate even when the depth of the brush bristles on the X-axis sliding plate is small. The counterweight, which is slightly larger than the maximum static friction force of the X-axis sliding plate when it initially slides on the support rail, ensures that the X-axis sliding plate will be moved by force when the brush bristles come into contact with it, and the value will be measured by the tension / compression sensor. At the same time, the X-axis sensor reading can be reset to zero using the manual zeroing function of the tension / compression sensor, making it convenient to read the value again during the experiment.

[0007] Preferably, the base assembly device is a device composed of a base, a Y-axis support rail, and a box-type unit, which can accurately measure the normal force of the brush bristles on the X-axis slide plate under different rotation speeds and bristle depths. The extremely low coefficient of friction between the support rail and the box-type unit, and between the nylon pulley and the steel wire rope, ensures that the experimental data is closer to the real data. The Y-axis tension and compression sensor has a measurement accuracy of 0.1N, which can accurately measure the normal force of the rotating brush bristles on the X-axis slide plate even when the bristle depth is small. The counterweight iron, which is greater than the maximum static friction force when the Y-axis frame initially slides on the support rail, ensures that the Y-axis tension and compression sensor can measure the normal force value of the X-axis slide plate when the brush bristles come into contact with the X-axis slide plate. At the same time, the manual zeroing function of the tension and compression sensor can be used to reset the Y-axis sensor reading to zero at this time, which is convenient for reading the value again during the experiment.

[0008] In summary, the technical effects and advantages of this utility model are as follows: This equipment uses a train cleaning experimental machine to conduct a brushing experiment on the X-axis sliding plate assembly of the rotating brush cleaning effect experimental equipment. By using different bristle materials, different bristle depths, and different brush shaft speeds, different frictional forces and normal pressures are generated on the X-axis sliding plate assembly of the rotating brush cleaning effect experimental equipment. The brushing experimental data of the train cleaning experimental machine on the rotating brush cleaning effect experimental equipment can be obtained. This allows for the selection of bristles that are more suitable for different stages of car washing, further improving car washing quality and reducing the cost of the train car washing machine. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of an experimental device for testing the washing effect of a train cleaning machine's rotating brush, as described in an embodiment of this application. Figure 2 This is a partial structural schematic diagram of a train cleaning machine rotating brush washing effect test device according to an embodiment of this application; Figure 3 This application provides an experimental device for testing the washing effect of a rotating brush in a train cleaning machine. Figure 2 Front view of the structure.

[0011] In the diagram: 1- X-direction sliding plate; 2- X-direction support rail and box unit; 3- X-direction protective cover; 4- Y-direction moving frame; 5- X-direction counterweight; 6- Y-direction counterweight; 7- mounting bracket; 8- Y-direction protective cover; 9- Y-direction support rail and box unit; 10- base; 11- X-direction sliding plate mounting base; 12- X-direction nylon pulley; 13- X-direction tension / compression sensor; 14- Y-direction nylon pulley; 15- Y-direction tension / compression sensor; 16- Y-direction tension / compression sensor mounting base; 17- Friction force X-direction sliding plate assembly device; 18- Normal force Y-direction sliding frame assembly device; 19- Base assembly device; 20- Train cleaning test machine; 21- Water supply system; 22- Electrical control system. Detailed Implementation

[0012] 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.

[0013] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] It should also be noted that all standard parts used in this application are commercially available, and can be custom-made according to the description and drawings. Unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances, and unless explicitly limited, machinery, parts, and equipment can all adopt conventional models in the prior art.

[0015] In this document, the term "comprising" is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0016] The train cleaning machine rotating brush washing effect experimental equipment provided in this embodiment is mainly used to simulate the washing process of the train cleaning machine rotating brush in order to study its washing effect. The equipment includes a set of friction force X direction sliding plate assembly device 17, a set of positive pressure Y direction sliding frame assembly device 18, a set of base assembly device 19, a train cleaning experimental machine 20, a set of water supply system 21 and electrical control system 22.

[0017] Friction X-direction sliding plate assembly device 17 The device consists of an X-axis sliding plate 1, a sliding plate mounting base 11, and a protective cover 3. The X-axis sliding plate 1, as the force-measuring body in direct contact with the brush bristles, is welded from an aluminum alloy plate of 6061-T6 profile and aluminum alloy square steel tubing. This material and structure reduce the weight of the equipment while ensuring that the sliding plate does not deform under the force of the brush bristles, and minimizes the impact of friction on measurement accuracy in the X-axis. Simultaneously, the aluminum alloy plate undergoes hard anodizing treatment, ensuring that the aluminum alloy panel will not wear or corrode under repeated brushing experiments.

[0018] Normal pressure Y-direction sliding frame assembly device 18 This device consists of a Y-axis sliding frame 4, an X-axis support rail and box-type unit 2, a nylon pulley 12, an X-axis counterweight 5, and an X-axis tension / compression sensor 13. The X-axis sliding plate 1 is connected to the support rail and box-type unit 2 mounted on the Y-axis sliding frame 4, allowing the plate and box-type unit to slide back and forth on the support rail. One side of the X-axis sliding plate 1 is connected to the tension / compression sensor 13 via a steel wire rope, which is fixed to the mounting base of the Y-axis sliding frame 4. The other side is connected to the X-axis counterweight 5 via a steel wire rope that passes over the pulley 12. During the friction process between the rotating brush bristles and the X-axis sliding plate 1, the extremely low coefficient of friction between the support rail and box-type unit 2, and between the nylon pulley 12 and the steel wire rope, ensures the accuracy of the experimental data. The X-axis tension / compression sensor 13 achieves a measurement accuracy of 0.1N.

[0019] Base assembly device 19 The device consists of a base 10, a Y-axis support rail and a box-type unit 9, a nylon pulley 14, a Y-axis counterweight 6, a force gauge mounting base 16, a Y-axis tension / compression sensor 15, and a mounting bracket 7. The Y-axis sliding frame 4 is connected to the box-type unit mounted on the base 10, and the sliding frame and box-type unit can slide back and forth on the support rail. One side of the Y-axis sliding frame 4 is connected to the tension / compression sensor 15 via a steel wire rope that passes over the pulley 14. The other end of the tension / compression sensor 15 is fixed to the mounting base 16 and connected to the base 10. The other side is connected to the Y-axis counterweight 6 via a steel wire rope, and the weight of the counterweight can be adjusted.

[0020] Train cleaning experimental machine 20 It consists of a base, a C-shaped frame, a brush shaft and bristle assembly, and an electro-hydraulic actuator. The motor drives the brush shaft to rotate, causing the bristles to brush the X-axis slide plate 1. The electro-hydraulic actuator with a position sensor controls the depth of the bristles during the brushing process.

[0021] Water supply system 21 It consists of a water tank, pipelines, solenoid valves, spray pipes and pumps, providing the necessary clean water for the scrubbing experiment.

[0022] Electrical control system 22 The brush shaft is controlled to rotate at different speeds by a frequency converter to meet the needs of different experimental conditions.

[0023] During the experiment, the weight of the Y-axis counterweight 6 was first adjusted according to the experimental requirements to overcome the static friction in the Y direction. Then, the rotation speed of the brush shaft was set through the electrical control system 22, and the water supply system 21 was turned on to provide clean water. The motor drove the brush shaft to rotate, and the brush bristles brushed the X-axis slide plate 1. The X-axis tension and pressure sensor 13 and the Y-axis tension and pressure sensor 15 measured the friction force and normal force data, respectively. The brushing effect of the train cleaning machine's rotating brush was evaluated by analyzing the friction force data.

[0024] To address the issue of effective cleaning of train exteriors, this equipment employs a train cleaning experimental machine to conduct brushing experiments on the X-axis sliding plate assembly of a rotating brush cleaning effect experimental device. By using different bristle materials, different bristle depths, and different brush shaft speeds, varying frictional forces and normal pressures are generated on the X-axis sliding plate assembly of the rotating brush cleaning effect experimental device. This yields brushing experiment data on the rotating brush cleaning effect experimental device, allowing for the selection of bristles that provide better cleaning results at different stages of the car wash, further improving car wash quality and reducing the cost of the train washing machine.

[0025] The bristle-penetrating depth of the train cleaning experimental machine is controlled by an electro-hydraulic actuator equipped with a position sensor. The bristle-penetrating depth is set by inputting the corresponding values ​​on the operation interface. The brush shaft speed is controlled by a frequency converter-driven geared motor, also set by inputting the corresponding values ​​on the operation interface. The operation interface is equipped with two displays that simultaneously show the measured friction force and normal force as numerical values ​​and curves, facilitating the observation and recording of real-time dynamic experimental data.

[0026] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A test device for the scrubbing effect of a train cleaning machine with rotating brushes, characterized in that: It includes a friction X-direction sliding plate assembly device, a normal force Y-direction sliding frame assembly device, a base assembly device, a train cleaning test machine, a water supply system, and an electrical control system; A friction force X-direction sliding plate assembly device consists of an X-direction sliding plate, a sliding plate mounting base, and a protective cover; the X-direction sliding plate, as the force measuring body that directly contacts the bristles, is welded from an aluminum alloy plate and an aluminum alloy square steel tube. A set of positive pressure Y-direction sliding frame assembly device consists of a Y-direction sliding frame, an X-direction support guide rail and box unit, nylon pulleys, an X-direction counterweight, and an X-direction tension and compression sensor. The X-direction sliding plate is connected to the support guide rail and box unit installed on the Y-direction sliding frame. The sliding plate and the box unit can slide back and forth on the support guide rail. One side of the X-direction sliding plate is connected to the tension and compression sensor through a steel wire rope. The tension and compression sensor is fixed on the mounting base of the Y-direction sliding frame. The other side is connected to the X-direction counterweight through a steel wire rope that passes around the pulley. A base assembly device consists of a base, a Y-axis support rail and a box-type unit, nylon pulleys, a Y-axis counterweight, a tension gauge mounting base, a Y-axis tension / compression sensor, and a mounting bracket. The Y-axis sliding frame is connected to the box-type unit mounted on the base. The sliding frame and the box-type unit can slide back and forth on the support rail. One side of the Y-axis sliding frame is connected to the tension / compression sensor by a steel wire rope that passes around the pulley. The other end of the tension / compression sensor is fixed to the mounting base and connected to the base. The other side is connected to the Y-axis counterweight by a steel wire rope. The weight of the counterweight can be adjusted. A train cleaning experimental machine consists of a base, a C-shaped frame, a brush shaft and bristle assembly, and an electro-hydraulic actuator. The train cleaning experimental machine is driven by a motor to rotate the brush shaft, which in turn drives the bristles to brush the X-axis sliding plate. The electro-hydraulic actuator with a position sensor controls the depth of the bristles during the brushing process. A water supply system consists of a water tank, pipelines, solenoid valves, spray pipes, and a pump to provide the necessary clean water for the brushing experiment. The electrical control system controls the rotation of the brush shaft at different speeds via a frequency converter. The X-axis sliding plate assembly is welded from 6061-T6 aluminum alloy profiles and aluminum alloy plates, and the aluminum alloy plates are treated with hard anodizing.

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