An integrated straddle-type monorail working vehicle

Abstract

The present application discloses a straddle-type monorail operation integrated vehicle, comprising: a vehicle body; a snow-clearing device, located at the end of the vehicle body in the direction of travel, comprising a snow-clearing roller and a horizontal brush shaft motor; two sets of contact rail brushing devices, each contact rail brushing device comprising bristles and a brush shaft, the bristles abutting against the contact rail on the monorail beam, and a nozzle for spraying high-pressure water onto the three outer surfaces of the contact rail; an aerial work platform, rotatably arranged on the vehicle body, for driving personnel to move up and down and / or rotate, for personnel to inspect the upline or downline of the vehicle body; a side compartment working platform, comprising a vertical telescopic arm connected to the vehicle body, a working platform being rotatably arranged at the end of the vertical telescopic arm, and a horizontal telescopic arm being arranged at the bottom of the working platform. The integrated operation vehicle configured in the above manner can have both the function of inspecting the trackside equipment above and below the monorail beam, and the function of contact rail brushing and high-pressure flushing, and can ensure the cleaning effect through the two modes of brushing and flushing.

Description

Technical Field

[0001] This application relates to the technical field of monorail working vehicles, and particularly to a straddle-type monorail integrated working vehicle. Background Art

[0002] The trackside equipment of a straddle-type monorail line includes signal lights, lightning rods, lightning protection boxes, cables on the tunnel wall, contact rails, and finger plates. To ensure the safe operation of daily electric multiple units, the staff must regularly perform maintenance operations on these trackside equipment, and then eliminate potential risks such as loose and fallen fasteners of the trackside equipment, abnormal deformation, cracking to fracture, severe corrosion, and aging damage. Since the trackside equipment is located on both sides of the high-altitude line, the method of manual maintenance cannot be adopted, and the existing working vehicles cannot have the maintenance functions for the trackside equipment above and below the monorail beam at the same time.

[0003] Secondly, when there is snow accumulation on the straddle-type monorail line, in order not to affect the line operation, the staff must perform snow removal operations at night to avoid the phenomenon that the running wheels of the electric multiple units slip and get stuck due to snow and ice freezing at night. In addition, the contact rails are located on both sides of the monorail beam, and there will also be snow and ice accumulation. The accumulation of ice and snow will cause abnormal current collection and severe wear and even damage to the current collection surface of the current collector shoes of the electric multiple units. The special snowplows currently used for snow removal on roads and streets cannot be directly used for snow removal operations on the monorail line.

[0004] To solve the above problems, how to design a straddle-type monorail integrated working vehicle that has the maintenance functions for the trackside equipment above and below the monorail beam at the same time, and has the functions of brushing and high-pressure flushing of the contact rails, and ensures the cleaning effect through two modes of brushing and flushing is a technical problem that those skilled in the art need to solve. Summary of the Invention

[0005] The purpose of this application is to provide a straddle-type monorail integrated working vehicle, which can have the maintenance functions for the trackside equipment above and below the monorail beam at the same time, and has the functions of brushing and high-pressure flushing of the contact rails, and ensures the cleaning effect through two modes of brushing and flushing.

[0006] To achieve the above purpose, this application provides a straddle-type monorail integrated working vehicle, including a vehicle body traveling on the monorail beam surface, and further including:

[0007] A snow removal device, located at the end of the vehicle body in the traveling direction, includes a snow removal roller abutted against the monorail beam surface and a horizontal brush shaft motor for driving the snow removal roller to rotate. The snow removal roller is arranged on the vehicle body through a lifting oil cylinder;

[0008] Two groups of contact rail brushing devices are respectively clamped on both sides of the monorail beam. Any one of the contact rail brushing devices includes bristles and a brush shaft that drives the bristles to rotate. The bristles abut against the contact rail on the monorail beam, and the bristles are in contact with three surfaces of the contact rail. The end of the brush shaft is connected to the power end of a vertical brush shaft motor. A nozzle is arranged on the brush shaft, and the nozzle is used to spray high-pressure water onto three surfaces of the contact rail;

[0009] An aerial work platform is rotatably arranged on the vehicle body and is used to drive personnel to move up and down and / or rotate, so as to facilitate personnel to perform maintenance on the up-line or down-line of the vehicle body;

[0010] A side compartment work platform is located below the vehicle body and includes a vertical telescopic arm connected to the vehicle body. The end of the vertical telescopic arm away from the vehicle body is rotatably provided with a work platform, and a horizontal telescopic arm is arranged at the bottom of the work platform. The horizontal telescopic arm is used to expand the width of the work platform in the horizontal direction.

[0011] Preferably, the snow sweeping device further includes:

[0012] A lifting oil cylinder is fixed on the vehicle body and is used to raise or lower the snow sweeping roller;

[0013] A bearing seat includes a left bearing seat and a right bearing seat. The left bearing seat and the right bearing seat are respectively arranged at both ends of the rotating shaft of the snow sweeping roller, and the left bearing seat and the right bearing seat are respectively connected to the power ends of two lifting oil cylinders.

[0014] Preferably, any one of the contact rail brushing devices further includes:

[0015] A baffle is located above the monorail beam and abuts against the beam surface of the monorail beam, and is used to prevent the snow accumulated by the snow sweeping device or the contact rail brushing device from splashing onto the monorail beam;

[0016] A push-and-retract hydraulic cylinder is used to adjust the degree of contact between the bristles and the contact rail, or to separate the bristles from the contact rail.

[0017] Preferably, any one of the contact rail brushing devices further includes a water supply system, and the water supply system includes:

[0018] A water tank is used to store cleaning water;

[0019] A detergent tank is used to store detergent;

[0020] A metering diaphragm pump is used to quantitatively extract the detergent in the detergent tank;

[0021] A centrifugal pump is used to extract the cleaning water in the water tank and transport it to the nozzle at a high-pressure water of 5-20 bar;

[0022] A solenoid valve for controlling whether the detergent is mixed with the output high-pressure water.

[0023] Preferably, the aerial work platform includes:

[0024] A rotating base that rotates on the vehicle body;

[0025] A first boom, hinged to the rotating base, with a first oil cylinder and a second oil cylinder hinged on both sides of the first boom;

[0026] A second boom, hinged to the first boom, and a third oil cylinder hinged to the second boom is arranged on the first boom;

[0027] A personnel basket, hinged to the end of the second boom away from the first boom, and a fourth oil cylinder hinged to the personnel basket is arranged on the second boom;

[0028] Wherein, the first oil cylinder, the second oil cylinder and the first boom are used to adjust the vertical extension or retraction of the personnel basket to a horizontal posture; the third oil cylinder and the second boom are used to adjust the vertical height of the personnel basket; the fourth oil cylinder is used to adjust the horizontal posture of the personnel basket.

[0029] Preferably, the maximum stroke of the vertical telescopic boom is 2.24 m and is driven by a double-stage hydraulic cylinder; the rotating device of the side compartment working platform adopts a hydraulic motor - slewing reducer drive form, and the maximum rotation angle is 180°; the horizontal telescopic boom is driven by a single-stage hydraulic cylinder, and the maximum stroke is 1 m.

[0030] Preferably, the side compartment working platform further includes:

[0031] A camera for recording the picture on the working platform;

[0032] A first sensor located on the vertical telescopic boom for detecting whether the extension stroke of the vertical telescopic boom is in place;

[0033] A second sensor for detecting whether the extension stroke of the horizontal telescopic boom is in place;

[0034] An ultrasonic sensor located at the end of the working platform for detecting whether there are obstacles around the working platform during operation.

[0035] Preferably, the straddle-type monorail operation integrated vehicle further includes:

[0036] A power battery, fixed inside the vehicle body, using lithium iron phosphate battery, for providing electric energy for the whole vehicle;

[0037] The motor inverter is located in the hanging box body under the vehicle body and is used to supply the DC 624V direct current output by the power battery to the traction inverter, which is converted into AC 380V three-phase alternating current with adjustable frequency and voltage by the traction inverter and provided to the drive motor for power supply.

[0038] The auxiliary inverter is located in the hanging box body under the vehicle body and is used to supply the DC 624V direct current output by the power battery to output voltage systems of AC 380V, AC 220V, and DC 24V to meet the power consumption requirements of all vehicle loads.

[0039] Preferably, the vehicle body includes:

[0040] The cab is used for personnel to drive the vehicle body.

[0041] The underframe is used to support the vehicle body. Travel wheels are arranged on the underframe and are used to travel on the monorail beam.

[0042] The bogie includes a driving running part and a hydraulic braking part. The driving running part drives the travel wheels to move through the drive motor. When the braking force provided by the driving running part is less than the total braking force required by the vehicle, the hydraulic braking part automatically supplements the difference in braking force.

[0043] Preferably, the straddle-type monorail operation integrated vehicle further includes a hydraulic system, which is arranged on the vehicle body and is used to provide all hydraulic power sources for the vehicle.

[0044] Compared with the above background technology, the present application provides a configured side compartment work platform and an aerial work platform, which have the function of maintaining trackside equipment above and below the monorail beam. The vehicle is equipped with a contact rail flushing and washing device. The push and retract hydraulic cylinder adjusts the hair-eating amount of the brush and the lateral distance from the nozzle to the contact rail to adapt to the brush flushing operation of different radius curve sections of the line, and there is no mechanical impact on the surface of the contact rail. If it snows, a snow sweeping device is installed to complete the snow sweeping operation, solving the problem that the electric multiple unit cannot operate normally due to snow accumulation on the monorail beam walking area in snowy weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0046] Figure 1 It is a schematic structural diagram of the straddle-type monorail operation integrated vehicle provided by the embodiment of the present application during operation.

[0047] Figure 2 The front structure schematic diagram of the straddle monorail operation integrated vehicle during operation provided by the embodiment of the present application;

[0048] Figure 3 The internal structure schematic diagram of the straddle monorail operation integrated vehicle during operation provided by the embodiment of the present application;

[0049] Figure 4 The top view structure schematic diagram of the straddle monorail operation integrated vehicle provided by the embodiment of the present application;

[0050] Figure 5 is Figure 3 the A-A cross-sectional view in

[0051] Figure 6 The three-dimensional structure schematic diagram of the side compartment working platform of the straddle monorail operation integrated vehicle provided by the embodiment of the present application;

[0052] Figure 7 The front structure schematic diagram of the side compartment working platform of the straddle monorail operation integrated vehicle provided by the embodiment of the present application;

[0053] Figure 8 The side structure schematic diagram of the side compartment working platform of the straddle monorail operation integrated vehicle provided by the embodiment of the present application;

[0054] Figure 9 The structure schematic diagram of the contact rail brushing device of the straddle monorail operation integrated vehicle provided by the embodiment of the present application;

[0055] Figure 10 The structure schematic diagram of the snow sweeping device of the straddle monorail operation integrated vehicle provided by the embodiment of the present application;

[0056] Figure 11 The structure schematic diagram of the aerial work platform of the straddle monorail operation integrated vehicle provided by the embodiment of the present application;

[0057] Figure 12 The structure schematic diagram of the water supply system of the straddle monorail operation integrated vehicle provided by the embodiment of the present application.

[0058] In the figure: 1 - signal machine; 2 - lightning protection box; 3 - pier of track beam; 4 - monorail beam; 5 - lightning rod; 6 - contact rail; 7 - aerial work platform; 71 - personnel basket; 72 - rotating mechanism; 73 - first oil cylinder; 74 - first boom; 75 - second oil cylinder; 76 - second boom; 77 - third oil cylinder; 78 - fourth oil cylinder; 79 - rotating base; 8 - snow sweeping device; 81 - lifting oil cylinder; 82 - right bearing seat; 83 - snow sweeping drum; 84 - left bearing seat; 85 - horizontal brush shaft motor; 9 - contact rail brushing device; 91 - baffle; 92 - vertical brush shaft motor; 93 - nozzle; 94 - brush bristles; 95 - push - retract hydraulic cylinder; 96 - bearing seat; 10 - cab; 11 - power battery; 12 - water supply system; 121 - water tank; 122 - centrifugal pump; 123 - solenoid valve; 124 - metering diaphragm pump; 125 - detergent tank; 13 - hydraulic system; 14 - bogie; 15 - side compartment work platform; 151 - vertical telescopic arm; 152 - rotating device; 153 - horizontal telescopic arm; 154 - work platform; 155 - camera; 156 - first sensor; 157 - second sensor; 158 - ultrasonic sensor; 16 - hanging box body; 17 - motor inverter cooling system; 18 - motor inverter; 19 - auxiliary inverter; 20 - power battery cooling system; 21 - underframe. Detailed implementation manners

[0059] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0060] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0061] As Figures 1 to 5 shown, the embodiment of the present application provides a straddle - type monorail operation integrated vehicle, which includes a vehicle body, a snow sweeping device 8, a contact rail brushing device 9, an aerial work platform 7, and a side compartment work platform 15. The vehicle body serves as the overall framework of the above - mentioned operation integrated vehicle and travels on the surface of the monorail beam 4. The monorail beam 4 is located on the pier of the track beam 3; the snow sweeping device 8 is located at the end of the vehicle body in the traveling end direction. Here, the traveling end direction refers to the direction in which the vehicle body travels along the monorail beam 4, specifically including the forward traveling direction and the reverse traveling direction, both of which belong to the traveling end direction of the vehicle body. In addition, the snow sweeping device 8 includes a snow sweeping drum 83 and a horizontal brush shaft motor 85 that drives the snow sweeping drum 83 to rotate. At the same time, the snow sweeping drum 83 is arranged on the above - mentioned vehicle body through a lifting oil cylinder 81, and the snow sweeping drum 83 is raised or lowered through the lifting oil cylinder 81.

[0062] It should be noted that, as Figure 10 shown, the above snow removal device 8 further includes a lifting oil cylinder 81 and a bearing seat. The lifting oil cylinder 81 is fixed on the vehicle body and is used to raise or lower the snow removal roller 83; the bearing seat includes a left bearing seat 84 and a right bearing seat 82. The left bearing seat 84 and the right bearing seat 82 are respectively arranged at both ends of the rotating shaft of the snow removal roller 83, and the left bearing seat 84 and the right bearing seat 82 are respectively connected to the power ends of the two lifting oil cylinders 81; it should be noted that in this embodiment, the snow removal roller 83 is fixed relative to the vehicle body through the bearing seat and the lifting oil cylinder 81. Of course, the snow removal roller 83 is rotatably connected to the bearing seat and the height is adjusted by the lifting oil cylinder 81 controller.

[0063] In addition, in this embodiment, the snow removal device 8 is further described. The snow removal roller 83 covers the running surface of the single-track beam 4 with a width of 690 mm. The horizontal brush shaft motor 85 drives the bristles 94 on the snow removal roller 83 to rotate. After the snow removal operation is completed, the snow removal device 8 is lifted by the lifting oil cylinder 81 until the snow removal roller 83 does not contact the running surface, reducing the wear of the bristles 94 on the snow removal roller 83; of course, the snow removal device 8 is arranged between the contact rail brushing devices 9 for snow removal work. If there is no snow accumulation condition in the operation section of the vehicle, it can be removed and stored to reduce the load of the vehicle.

[0064] As Figure 9 shown, in this embodiment, the number of the contact rail brushing devices 9 is two groups. The two groups of devices are respectively clamped on both sides of the single-track beam 4. It should be noted that any one group of the contact rail brushing devices 9 includes bristles 94 and a brush shaft that drives the bristles 94 to rotate. The brush shaft is rotatably arranged through a bearing seat 96. The bristles 94 abut against the contact rail 6 on the single-track beam 4, and the bristles 94 are attached to three surfaces of the contact rail 6. The end of the brush shaft is connected to the power end of the vertical brush shaft motor 92. A nozzle 93 is arranged on the brush shaft, and the nozzle 93 is used to spray high-pressure water onto three surfaces of the contact rail 6.

[0065] Specifically, the above nozzle 93 is arranged on the non-rotating surface of the brush shaft. The brush shaft can be divided into segments. The brush shaft located at the bristles 94 is set to be rotatable, and the rest is a non-rotating section; it should be noted that the spraying range of the nozzle 93 corresponds to the three outer surfaces of the contact rail 6 to ensure the cleaning effect of the contact rail 6. Since the contact rails 6 on both the left and right sides of the single-track beam 4 have a phenomenon of one high and one low and are not symmetrically arranged, the arrangement of the bristles 94 and the nozzle 93 is also adjusted according to the position of the contact rail 6, which is not specifically limited here. In addition, the bristles 94 are arranged in a U shape, and the brushable range of the bristles 94 covers the exposed surface of the contact rail 6. Of course, the contact rail brushing device 9 can also independently remove the snow on the contact rail 6 to avoid the influence of snow accumulation and icing on the operation of the vehicle.

[0066] In addition, the contact rail brushing device 9 is respectively arranged at the head end and the tail end of the vehicle. In order to improve the cleaning efficiency, the contact rail brushing device 9 at the head end can spray a mixture of detergent and clean water in a certain proportion, and the contact rail brushing device 9 at the tail end directly sprays clean water with a pressure of 5 to 20 bar to clean the mixture of detergent and pollutants on the surface of the contact rail 6; this arrangement ensures that the detergent has a certain reaction time.

[0067] The aerial work platform 7 is rotatably mounted on the vehicle body and is used to drive personnel to move up and down and / or rotate so that personnel can inspect and repair the vehicle body's upward or downward lines.

[0068] Further, if Figure 11 As shown, the aerial work platform 7 includes a rotating base 79, a first boom 74, a second boom 76 and a personnel basket 71. The rotating base 79 is rotatably arranged on the vehicle body, which can realize the rotation of the entire aerial work platform 7 by 180 degrees, so that the vehicle can complete maintenance work on the upline or downline; the first boom 74 is hinged to the rotating base 79, and the first boom 74 is hinged on both sides with a first cylinder 73 and a second cylinder 75. The first cylinder 73, the second cylinder 75 and the first boom 74 realize the vertical extension or recovery of the aerial work platform 7 to a horizontal posture; the second boom 76 is hinged to the first boom 74, and the first boom 74 is provided with a second boom 76 hinged to the second boom 76. Three cylinders 77, the third cylinder 77 and the second arm 76 are used to adjust the vertical height of the personnel basket 71; the personnel basket 71 is hinged to the end of the second arm 76 away from the first arm 74, and the second arm 76 is provided with a fourth cylinder 78 hinged to the personnel basket 71. The fourth cylinder 78 is used to adjust the horizontal posture of the personnel basket 71 to ensure that the personnel basket 71 will not sink when the load is large; it should be noted that the personnel basket 71 can rotate relative to the second arm 76. Specifically, the personnel basket 71 can achieve a 180° rotation of the personnel basket 71 through the rotating mechanism 72. In the non-operating state, it can be rotated 90° and arranged along the monorail beam 4 to avoid the risk of intrusion.

[0069] In addition, if Figure 3 as well as Figures 6 to 8 As shown, the side compartment working platform 15 is located at the lower part of the vehicle body, and includes a vertical telescopic arm 151, a horizontal telescopic arm 153 and a working platform 154. One end of the vertical telescopic arm 151 is connected to the vehicle body, and the other end is rotated to set the working platform 154, and a horizontal telescopic arm 153 is set at the bottom of the working platform 154. The horizontal telescopic arm 153 is used to expand the width of the working platform 154 in the horizontal direction; of course, there is no restriction on the specific setting method of the horizontal telescopic arm 153 and the working platform 154, as long as it can achieve the above-mentioned effect and be stable and reliable.

[0070] It should be noted that the maximum stroke of the vertical telescopic arm 151 is 2.24 m and it is driven by a double-stage hydraulic cylinder; the rotating device 152 adopts a hydraulic motor - slewing speed reducer drive form, and the maximum rotation angle is 180°; the horizontal telescopic arm 153 is driven by a single-stage hydraulic cylinder, and the maximum stroke is 1 m. The operator stands on the operation platform 154, and all equipment maintenance within the coverage of the above three actions can be achieved.

[0071] For the above-mentioned contact rail brushing device 9, it also includes a baffle 91 and a push-and-pull hydraulic cylinder 95. The baffle 91 is located above the monorail beam 4 and abuts against the beam surface of the monorail beam 4, and is used to prevent the snow accumulated by the snow sweeping device 8 or the contact rail brushing device 9 from splashing onto the monorail beam 4; specifically, when the snow sweeping device 8 is sweeping snow, in order to prevent the snow from splashing onto the vehicle running wheels, the baffle 91 is provided, and the baffle 91 can be a TPU baffle 91; since the snow accumulated on the beam surface of the monorail beam 4 is likely to fall and accumulate on the upper surface of the contact rail 6 during the cleaning process, the contact rail brushing device 9 can also operate simultaneously, and the bristles 94 in the rotating state clean the snow on the contact rail 6, avoiding the negative impact of the running surface snow sweeping on the contact rail 6.

[0072] The push-and-pull hydraulic cylinder 95 is used to adjust the degree of fit between the bristles 94 and the contact rail 6, or to separate the bristles 94 from the contact rail 6; specifically, the push-and-pull hydraulic cylinder 95 can adjust the hair-taking amount between the bristles 94 and the contact rail 6. At the same time, when the vehicle passes through a curve section, the push-and-pull hydraulic cylinder 95 pulls back the brush shaft to avoid interference and collision between the brush shaft and the contact rail 6; in addition, according to the characteristics of the curve, the left push-and-pull hydraulic cylinder 95 acts, and the right push-and-pull hydraulic cylinder 95 acts in the reverse direction to ensure the cleaning effect of the contact rail 6 in the curve section. Similarly, this function is applicable to the snow sweeping device 8 to sweep the snow in the curve section.

[0073] In addition, for any of the above-mentioned contact rail brushing devices 9, it also includes a water supply system 12, as Figure 12 shown, the water supply system 12 is located inside the vehicle. The water supply system 12 includes a water tank 121, a detergent tank 125, a centrifugal pump 122, a metering diaphragm valve, and a solenoid valve 123. The water tank 121 is used to store cleaning water, and its volume can be selected according to the actual situation, and a quick-connect water replenishment interface can be set; the detergent tank 125 is used to store detergent; after the centrifugal pump 122 extracts the water from the water tank 121, high-pressure water with an output pressure of about 5 - 20 bar passes through a high-pressure water pipe to the nozzle 93 to complete the flushing operation of the surface of the contact rail 6. The detergent supply circuit mainly extracts a quantitative detergent from the detergent tank 125 through a metering diaphragm pump 124, and whether to mix with the output clear water is controlled by an electromagnetic ball valve. The staff can independently choose whether to use a mixture of detergent and water or pure clear water.

[0074] Regarding the above-mentioned side car working platform 15, it also includes a camera 155, a first sensor 156, a second sensor 157, and an ultrasonic sensor 158. The camera 155 transmits the image on the working platform 154 into the cab 10, facilitating observation and information transmission. At the same time, an ultrasonic sensor 158 is provided at the forefront of the working platform 154 to prevent the side car working platform 15 from colliding with obstacles during operation, causing safety accidents. The working range of the side car working platform 15 covers the positions of the lightning protection box 2, the signal machine 1 support bolts, and the finger plate.

[0075] In addition, the first sensor 156 is located on the vertical telescopic arm 151 and is used to detect whether the extension stroke of the vertical telescopic arm 151 is in place; the second sensor 157 is used to detect whether the extension stroke of the horizontal telescopic arm 153 is in place; specifically, both the first sensor 156 and the second sensor 157 are wire rope sensors. The oil cylinder of the vertical telescopic arm 151 of the side car working platform 15 pushes the vertical telescopic arm 151 to descend. After the wire rope sensor detects that the vertical extension stroke is in place, it drives the hydraulic motor to drive the rotating device 152 of the side car working platform 15 to rotate a certain angle to the maintenance target. Finally, the oil cylinder of the horizontal telescopic arm 153 pushes out the working platform 154. After the wire rope sensor detects that the horizontal extension stroke is in place, personnel can reach the maintenance position.

[0076] It should be noted that in this embodiment, the straddle-type monorail operation integrated vehicle also includes a power battery 11, a motor inverter 18, and an auxiliary inverter 19. The power battery 11 is fixed inside the vehicle body. The power battery 11 uses lithium iron phosphate batteries, and the battery capacity meets the vehicle driving requirements for a round trip on the main line. The power battery 11 is arranged inside the vehicle body, which will not cause the safety and service life of the battery to decline due to vehicle collision, and avoids serious accidents such as battery combustion and explosion caused by collision; of course, the power battery cooling system 20 adopts a water-cooled heat dissipation method to ensure that the temperature of the power battery 11 is within the optimal working temperature range of 25°C to 40°C.

[0077] The motor inverter 18 is located in the lower hanging box 16 under the vehicle body and is used to supply the DC624V direct current output by the power battery 11 to the traction inverter, which is converted into AC380V three-phase alternating current with adjustable frequency and voltage by the traction inverter and provided to the drive motor for power supply;

[0078] In addition, the motor inverter 18 is also connected to a motor inverter cooling system 17. The motor inverter cooling system 17 is mainly used for the heat dissipation of the motor inverter 18 to ensure that the performance and reliability of the semiconductor in the inverter do not decline with the increase in temperature. The air-cooled heat dissipation method is used to ensure that most of the heat generated by the IGBT module in the motor inverter 18 is dissipated to the outside at a relatively fast speed.

[0079] The auxiliary inverter 19 is also located in the hanging box body 16 under the vehicle body, and is used to supply the DC 624V direct current output by the power battery 11 to output AC 380V, AC 220V, and DC 24V voltage systems to meet the power consumption requirements of all vehicle loads. Of course, for the control module of the auxiliary inverter 19, through appropriate voltage modulation methods, it meets the power supply requirements of the vehicle's three-phase loads and suppresses the occurrence of three-phase imbalance. Secondly, it meets the ability to charge the DC 24V battery and performs reasonable load management control under different working conditions.

[0080] It should be noted that for the above-mentioned motor inverter 18 and drive motor, the traction control unit is used to control both of them, converting the train control set value and control command into the control signal of the motor inverter 18, including vehicle speed regulation, protection, generation of inverter pulse mode, etc. At the same time, the electric braking is adjusted and the impact limit protection of the vehicle's acceleration and deceleration is carried out.

[0081] In addition, as Figure 3 shown, in this embodiment, the above-mentioned vehicle body further includes components such as a cab 10, a chassis 21, and a bogie 14. The cab 10 is used for personnel to drive the vehicle; the chassis 21 is used to support the vehicle body, and walking wheels are arranged on the chassis 21, and the walking wheels are used to walk on the monorail beam 4. It should be noted that the bogie 14 includes a driving running part and a hydraulic braking part. The driving running part drives the walking wheels to move through the drive motor. When the braking force provided by the driving running part is less than the total braking force required by the vehicle, the hydraulic braking part automatically supplements the difference in braking force part.

[0082] Specifically, in the braking system of the vehicle, the braking system includes electric braking and hydraulic braking. The braking force required by the current vehicle is calculated based on data such as load and speed, and this braking force is proportionally distributed to the driving running part to apply electric braking and to the hydraulic braking part to apply hydraulic braking. If the actually applied electric braking force is less than the allocated value of the total braking force required by the vehicle, the hydraulic braking system automatically supplements the difference part.

[0083] In addition, for any of the above straddle-type monorail operation integrated vehicles, it further includes a hydraulic system 13. The hydraulic system 13 is arranged on the vehicle body and is used to provide all hydraulic power sources for the vehicle. Specifically, the hydraulic system 13 mainly serves the hydraulic braking part, the side compartment working platform 15, the hydraulic actuators of the contact rail brushing device 9, the snow sweeping device 8, and the hydraulic actuators of the aerial work platform 7.

[0084] The hydraulic system 13 mainly includes a hydraulic oil tank, a brake pump, a brake valve group, a working pump, and a working motor. The hydraulic oil tank is installed in the cab 10, and the specific volume of the hydraulic oil tank is set according to the actual situation. Of course, the hydraulic oil tank can integrate components such as a filter and a liquid level and liquid temperature gauge.

[0085] The brake pump group consists of a three-phase asynchronous motor and a gear pump. The high-pressure oil output by the brake pump acts on the normally open service brake and the normally closed parking brake through the brake valve group. The brake valve group integrates an electromagnetic directional valve, a filling valve, an accumulator, etc., to ensure the implementation and release of service braking and parking braking. When the brake pump group has a fault that cannot be repaired in a short period, switch the two-position valve to the manual pump circuit, and use the manual pump to release the parking brake, and then connect the rescue vehicle to the faulty vehicle and tow it to the vehicle depot.

[0086] Secondly, the high-pressure oil output by the operation pump group acts on the side compartment working platform 15, the contact rail brushing device 9, the snow sweeping device 8, and the hydraulic circuit of the aerial work platform 7 through the multi-way valve. A hydraulic radiator is set in the return section to ensure that the hydraulic oil temperature does not exceed 75 °C.

[0087] Regarding the hydraulic actuators of the aerial work platform 7, it includes the hydraulic motor of the rotating mechanism 72, the first cylinder 73, the second cylinder 75, the third cylinder 77, the fourth cylinder 78, and the hydraulic motor of the rotating base 79 to complete the vertical extension, horizontal extension, and rotation actions of the aerial work platform 7. The maximum extension height of the aerial work platform 7 is 4 m, and the horizontal extension can reach 2.5 m. The working range covers the positions of the signal machine 1, the lightning rod 5, and the tunnel top equipment.

[0088] Regarding the hydraulic actuator of the contact rail brushing device 9, it is mainly the push-pull cylinder of the contact rail brushing device 9, which cooperates with the five-way two-position directional valve to complete the pushing and retracting actions of the push-pull cylinder on the brush shaft. The hydraulic actuator of the snow sweeping device 8 is the lifting cylinder 81, and the hydraulic action circuit and principle are the same as those of the contact rail brushing device 9, so they will not be elaborated.

[0089] In response to the maintenance and cleaning requirements of the trackside equipment on the single-rail beam 4 line, the straddle-type monorail operation integrated vehicle is equipped with a side compartment working platform 15, a contact rail brushing and flushing device 9, a snow sweeping device 8, and an aerial work platform 7. Since the maintenance and cleaning operation time period is generally from 12:00 am to 3:00 am at night, if the power form of a traditional engineering vehicle is adopted, the noise pollution of the internal combustion engine will have an adverse impact on the sleeping residents around the line. Therefore, the straddle-type monorail operation integrated vehicle of this application adopts the transmission method of power battery 11 - traction inverter - motor - reducer, and the advantage of this transmission method is low noise and no exhaust gas pollution.

[0090] In addition, the straddle monorail operation integrated vehicle of the present application is configured with a side compartment working platform 15 and an aerial work platform 7, and has the function of maintaining the trackside equipment above and below the single-track beam 4. The vehicle is equipped with a contact rail flushing and washing device. The push-and-receive hydraulic cylinder 95 adjusts the hair-eating amount of the brush bristles 94 and the lateral distance between the nozzle 93 and the contact rail 6, so as to adapt to the flushing and washing operations of different radius curve segments of the line, and there is no mechanical impact on the surface of the contact rail 6. In case of snowing weather, a snow sweeping device 8 is installed to complete the snow sweeping operation, solving the problem that the electric multiple unit cannot operate normally due to snow accumulation on the running area of the single-track beam 4 in snowy days.

[0091] It should be noted that the present application is a hydraulic system 13 that combines the snow sweeping device 8, the contact rail brushing device 9, the aerial work platform 7, the side compartment working platform 15 and the hydraulic braking part. If the hydraulic power source of any one of these devices fails and loses power, the pressure supply circuit can be switched by the power source of other devices to complete the operation.

[0092] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0093] Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An integrated straddle-type monorail working vehicle, comprising a vehicle body traveling on the surface of a monorail beam, characterized in that, Also includes: a snow-clearing device, located at the end of the vehicle body in the direction of travel, comprising a snow-clearing roller abutting against the monorail beam surface and a horizontal brush shaft motor driving the snow-clearing roller to rotate, wherein the snow-clearing roller is arranged on the vehicle body through a lifting cylinder; Two sets of contact rail brushing devices are respectively clamped on both sides of the monorail beam, each of the contact rail brushing devices includes bristles and a brush shaft that drives the bristles to rotate, the bristles abut against the contact rail on the monorail beam, and the bristles are in contact with the three surfaces of the contact rail, the end of the brush shaft is connected to the power end of the vertical brush shaft motor, and a nozzle is provided on the brush shaft, and the nozzle is used to spray high-pressure water onto the three surfaces of the contact rail; An aerial work platform is rotatably mounted on the vehicle body and is used to drive personnel to move up and down and / or rotate for maintenance of the vehicle body's upward or downward lines; A side compartment working platform is located at the lower part of the vehicle body and includes a vertical telescopic arm connected to the vehicle body, the vertical telescopic arm is rotated away from the end of the vehicle body to set the working platform, and a horizontal telescopic arm is provided at the bottom of the working platform, the horizontal telescopic arm is used to expand the width of the working platform in the horizontal direction; Any of the contact rail brushing devices further comprises: a baffle, located above the monorail beam and abutting against the monorail beam surface, for preventing the snow cleared by the snow sweeping device or the contact rail brushing device from splashing onto the monorail beam; The pushing and retracting hydraulic cylinder is used to adjust the degree of fit between the bristles and the contact rail, or to separate the bristles from the contact rail. According to the characteristics of the curve, the pushing and retracting hydraulic cylinder on the left side moves, and the pushing and retracting hydraulic cylinder on the right side moves in the opposite direction.

2. The straddle-type monorail operation integrated vehicle according to claim 1, wherein The snow-clearing device further comprises: a lifting cylinder fixed to the vehicle body and used for raising or lowering the snow-clearing roller; The bearing seat includes a left bearing seat and a right bearing seat. The left bearing seat and the right bearing seat are respectively arranged at both ends of the snow-clearing roller shaft, and the left bearing seat and the right bearing seat are respectively connected to the power ends of the two lifting cylinders.

3. The straddle-type monorail operation integrated vehicle according to claim 1, wherein, Any of the contact rail brushing devices further comprises a water supply system, the water supply system comprising: a water tank for storing cleaning water; a detergent tank for storing detergent; a metering diaphragm pump, used for quantitatively extracting the detergent from the detergent tank; A centrifugal pump is used to extract the cleaning water in the water tank and deliver it to the nozzle at a high pressure of 5-20 bar; The solenoid valve is used to control whether the detergent is mixed with the output high-pressure water.

4. The straddle-type monorail operation integrated vehicle according to claim 1, wherein The aerial work platform comprises: A rotating base rotates on the vehicle body; A first arm is hinged to the rotating base, and a first oil cylinder and a second oil cylinder are hinged on both sides of the first arm; a second boom, hinged to the first boom, wherein the first boom is provided with a third oil cylinder hinged to the second boom; a personnel basket, hinged to the end of the second arm away from the first arm, and provided on the second arm with a fourth oil cylinder hinged to the personnel basket; Among them, the first oil cylinder, the second oil cylinder and the first boom are used to adjust the vertical extension or retraction of the personnel basket to a horizontal posture; the third oil cylinder and the second boom are used to adjust the vertical height of the personnel basket; the fourth oil cylinder is used to adjust the horizontal posture of the personnel basket.

5. The straddle-type monorail operation integrated vehicle according to claim 1, wherein The maximum stroke of the vertical telescopic boom is 2.24 m and it is driven by a double-stage hydraulic cylinder; the rotating device of the side compartment working platform adopts a hydraulic motor - slewing speed reducer drive form, and the maximum rotation angle is 180°; the horizontal telescopic boom is driven by a single-stage hydraulic cylinder, and the maximum stroke is 1 m.

6. The straddle-type monorail operation integrated vehicle according to claim 5, characterized in that, The side compartment working platform further includes: A camera for recording the images on the working platform. A first sensor located on the vertical telescopic boom for detecting whether the extension stroke of the vertical telescopic boom is in place. A second sensor for detecting whether the extension stroke of the horizontal telescopic boom is in place. An ultrasonic sensor located at the end of the working platform for detecting whether there are obstacles around the working platform during operation.

7. The straddle-type monorail operation integrated vehicle according to any one of claims 1-6, characterized in that, It further includes: A power battery fixed in the vehicle body, using lithium iron phosphate battery, for providing electric energy for the whole vehicle. A motor inverter located in the lower hanging box body under the vehicle body, for supplying the DC624V direct current output by the power battery to the traction inverter, which is converted into AC380V three-phase alternating current with adjustable frequency and voltage by the traction inverter and supplied to the drive motor for power supply. An auxiliary inverter located in the lower hanging box body under the vehicle body, for supplying the DC624V direct current output by the power battery to output voltage systems of AC380V, AC220V, and DC24V to meet the power consumption requirements of all loads of the vehicle.

8. The straddle-type monorail operation integrated vehicle according to claim 7, characterized in that The vehicle body includes: A cab for personnel to drive the vehicle body. A chassis for supporting the vehicle body, with traveling wheels arranged on the chassis, and the traveling wheels are used for traveling on the single-rail beam. A bogie, including a driving and running part and a hydraulic braking part, the driving and running part drives the traveling wheels to move through the drive motor, and when the braking force provided by the driving and running part is less than the total braking force required by the vehicle, the hydraulic braking part automatically supplements the difference in braking force.

9. The straddle-type monorail operation integrated vehicle according to claim 8, characterized in that It further includes a hydraulic system, which is arranged on the vehicle body and used to provide all hydraulic power sources for the vehicle.

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