WO2017008568A1 - 有轨电车液压制动单元油箱通气装置 - Google Patents

有轨电车液压制动单元油箱通气装置 Download PDF

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Publication number
WO2017008568A1
WO2017008568A1 PCT/CN2016/082181 CN2016082181W WO2017008568A1 WO 2017008568 A1 WO2017008568 A1 WO 2017008568A1 CN 2016082181 W CN2016082181 W CN 2016082181W WO 2017008568 A1 WO2017008568 A1 WO 2017008568A1
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WO
WIPO (PCT)
Prior art keywords
venting
waterproof
mounting
hole
vent
Prior art date
Application number
PCT/CN2016/082181
Other languages
English (en)
French (fr)
Inventor
郝保磊
高常君
王明星
苗峰
崔雷
张笑慰
牛玉国
Original Assignee
中车青岛四方车辆研究所有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201520504202.XU external-priority patent/CN204783968U/zh
Priority claimed from CN201510408669.9A external-priority patent/CN105041785A/zh
Priority claimed from CN201520503819.XU external-priority patent/CN204739037U/zh
Priority claimed from CN201510407615.0A external-priority patent/CN105003493B/zh
Application filed by 中车青岛四方车辆研究所有限公司 filed Critical 中车青岛四方车辆研究所有限公司
Priority to RU2017106621A priority Critical patent/RU2643852C1/ru
Priority to EP16823715.4A priority patent/EP3168482B1/en
Priority to JP2017519864A priority patent/JP6325750B2/ja
Priority to US15/507,724 priority patent/US10480551B2/en
Publication of WO2017008568A1 publication Critical patent/WO2017008568A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/06—Applications or arrangements of reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F01M13/023—Control valves in suction conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/20—Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/59—Systems for actuating EGR valves using positive pressure actuators; Check valves therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/26—Supply reservoir or sump assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/002—Air treatment devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/38—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/40—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with timing means in the recirculation passage, e.g. cyclically operating valves or regenerators; with arrangements involving pressure pulsations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0807—Manifolds
    • F15B13/0814—Monoblock manifolds

Definitions

  • the invention relates to the technical field of rail vehicle braking, and in particular to a rail car hydraulic brake unit tank venting device.
  • the existing tram brake hydraulic brake unit is composed of FIG. 1 and includes an electric component protection cover 1, an integrated valve block 2, a fuel tank 3, a vent plug 4 and the like. Since the fuel tank 3 needs to be unblocked with the atmosphere to ensure that the components such as the hydraulic pump in the fuel tank 3 work normally, the vent plug 4 is usually mounted on the mounting hole on the upper surface of the oil tank 3, and the mounting hole is a through hole to ensure the smooth flow of the inner cavity of the fuel tank and the atmosphere.
  • the venting plug 4 has a certain hydrophobic property, and generally can ensure that the oil in the oil tank 3 is in communication with the atmosphere, and the water vapor is prevented from being mixed into the oil tank 3.
  • the above hydraulic unit is installed at the bottom of the tram and is close to the ground surface.
  • the surface of the vent plug 4 is covered with snow, and the components in the hydraulic unit work. It will cause the snow to melt, and more water will accumulate on the surface of the vent plug 4, affecting the ventilation performance of the fuel tank 3. Even under the action of negative pressure, the accumulated water will be sucked into the fuel tank 3 through the vent plug 4, affecting the hydraulic brake system. Work, threatening driving safety.
  • the prior art discloses a waterproof vent plug for a reducer and a reducer provided with the vent plug, including a vent pipe, a connecting pipe and a cover member, the vent pipe is cup-shaped, having a peripheral wall and a bottom The wall, the peripheral wall and the bottom wall are provided with at least one venting hole for ventilating the inside of the casing and the outside, as shown in FIG. 2 .
  • the venting plug prevents moisture from entering the inside of the housing of the reducer, thereby avoiding a decrease in lubricating performance due to an increase in the moisture content of the lubricating oil.
  • the venting plug structure is installed with a cover plate, a connecting pipe and a venting pipe in order from top to bottom, the air flow path is a one-way longitudinal structure, and when the surface of the oil tank is covered with ice and snow, the vent plug may still be poorly ventilated after being covered by rain and snow. And the infiltration of rain and snow, which affects the safety of trains.
  • the object of the present invention is to provide a tank ventilating device for a hydraulic brake unit of a tram, which is built in the inside of the electric component protection cover, and ensures that the water tank and the outside are ventilated smoothly, and the rainwater and the like are prevented from falling into the tank.
  • a tank brake device for a hydraulic brake unit of a tram comprising a vent plug, a sealing ring,
  • the air guiding hole and the air guiding pipe adopt a through hole structure, and are disposed at an upper end of the integrated valve block;
  • the vent plug is disposed inside the electric component protective cover, and is gas exchanged with the outside through the wire harness hole provided on the electric component protective cover;
  • the plug is mounted on the air inlet hole of the integrated valve block on the inner side of the electric component protection cover, the vent plug is coaxial with the air guiding hole, and the vent plug is connected to the inner cavity of the integrated valve block through the air guiding hole;
  • the sealing ring is installed in the vent plug and the integrated valve block is combined
  • One end of the air guiding tube is installed on the air guiding hole of the integrated valve block on the inner side of the oil tank, and the other end of the air guiding tube is infiltrated into the air chamber above the oil tank, and the air guiding tube and the air guiding hole are coaxial and communicate with
  • the air guiding hole is obtained by excavating a passage inside the integrated valve block.
  • the ventilation device of the present invention comprises a vent plug, a sealing ring, an air guiding hole and an air guiding tube, and the air guiding hole is a through hole near the upper end of the integrated valve block, and the air hole can be seen at this time.
  • the vent plug is connected to the inner cavity of the integrated valve block through the air guiding hole; in addition, the air guiding hole can also be replaced by other pipes (hereinafter referred to as vent pipes) disposed in the existing channel of the integrated valve block, that is, the channel is arranged at the upper end of the integrated valve block. , set the snorkel inside the channel.
  • the air guiding hole or the vent pipe realizes the communication between the electric component protective cover, the integrated valve block and the oil tank, and the oil tank and the outside air can be realized by the air guiding pipe which is infiltrated into the air chamber in the oil tank and the vent plug which is disposed inside the electric component protective cover. The connection between.
  • the structure of the vent plug comprises a vent plug body and a waterproof venting component; at least one waterproof venting component is mounted on the side of the venting plug body; There are two waterproof and ventilating components, which are symmetrically mounted on the side of the venting plug body.
  • the venting plug adopts the symmetrical or asymmetrical installation of the waterproof and ventilating component on the side of the venting plug body, and the ventilating of the fuel tank is realized by the waterproof ventilating component.
  • the waterproof venting component only needs to be replaced, and the entire venting plug is not required to be detached from the fuel tank. Easy to repair and replace.
  • the ventilating surface of the waterproof ventilating component is not covered by rain and snow, and can effectively prevent rain and snow, etc. Fall in to ensure the safety of trains.
  • the venting plug body comprises a mounting screwing head, a lateral venting hole, a waterproof venting component mounting groove and a main mounting threaded portion;
  • the side of the mounting screwing head is provided with a plurality of pairs a side-mounted clamping surface, a waterproof venting component mounting groove is disposed on the clamping surface of the mounting screw head;
  • the lateral venting hole is disposed at a joint portion of the waterproof venting component mounting groove and the waterproof venting component and extends toward the inside of the mounting screwing head;
  • the waterproof ventilating component is installed at the lateral venting hole, and the longitudinal venting hole is disposed at the axial center of the main mounting threaded portion.
  • the longitudinal venting hole and the transverse venting hole are perpendicular to each other and penetrate each other.
  • the longitudinal venting hole and the lateral venting hole and the oil tank form a ventilation together Plug air flow channel.
  • the vent plug body comprises a mounting screwing head, a lateral venting hole, a waterproof venting component mounting groove and a main mounting threaded portion;
  • the side of the mounting screwing head is provided a plurality of oppositely disposed clamping faces, the waterproof venting component mounting groove is disposed on the clamping surface disposed on the opposite side of the mounting screwing head;
  • the lateral venting hole is disposed in the waterproof a venting component mounting groove and a waterproof venting component joint portion, and the lateral venting hole transversely penetrates the other waterproof venting component mounting groove;
  • the waterproof venting component is installed at the lateral venting hole, and the waterproof venting components are mutually penetrated through the transverse venting hole;
  • a longitudinal vent hole is disposed at an axial center of the main mounting thread portion, and the longitudinal vent hole and the horizontal vent hole are perpendicular to each other and penetrate each other, and the longitudinal vent hole and the lateral vent hole and the oil tank together form a vent plug air flow passage.
  • the venting plug adopts one or more waterproof and ventilating components to be symmetrically or asymmetrically mounted on the side of the venting plug body, and penetrates through the lateral venting holes, and a longitudinal venting hole communicating with the oil tank is arranged at the axial center of the main mounting threaded portion, longitudinally
  • the vent hole is directly connected with the oil tank. Since the longitudinal vent hole and the lateral vent hole are perpendicular and mutually penetrated, the longitudinal vent hole and the lateral vent hole and the oil tank together form a vent plug air flow passage, that is, the air flow path of the vent plug is a transverse passage and a longitudinal passage. , greatly improve the ventilation and ventilation of the vent plug.
  • the waterproof and ventilating component is in the form of a bolt, the head is provided with a ventilating window, the shank is provided with a venting hole, the venting window is connected with the venting hole, and the venting hole is connected with the lateral venting hole; the venting window is preferably disposed at the head side.
  • the waterproof and ventilating component comprises a cover plate, a waterproof gas permeable membrane, a component body and a small sealing ring; one end of the component body is threadedly mounted on the lateral vent hole of the waterproof ventilating component mounting groove, and the small sealing ring is mounted on the component body and waterproof Between the venting assembly mounting slots, the cover plate is mounted on the outside of the assembly body, and the waterproof permeable membrane is mounted between the assembly body and the cover plate.
  • the assembly body comprises a vent hole, a cover mounting hole, a louver, a component screwing head and a component mounting thread portion;
  • the component screwing head adopts a hollow structure, and is at the middle of each clamping surface of the component screwing head Cut out a ventilating window for gas exchange with the outside;
  • the assembly screw head is close to the end of the waterproof venting component mounting slot for the component mounting threaded portion, and the component mounting threaded portion is mounted to the lateral venting hole by a small sealing ring;
  • the assembly screwing head and component mounting The axial end of the threaded portion is provided with a venting hole penetrating the two;
  • the inner wall of the screwing head of the assembly is provided with a waterproof gas permeable membrane mounting step for installing a waterproof gas permeable membrane;
  • the waterproof ventilation component mounting groove adopts a semi-circular groove, the upper end of the groove is flush with the upper end of the installation screw head, and the lower end of the groove adopts an arc structure.
  • venting plug body is provided with a main sealing ring mounting groove for mounting a sealing ring, and the main sealing ring mounting groove is disposed at a joint portion of the main mounting thread portion and the mounting screwing head; the structure can effectively ensure the circulation of the gas.
  • the air guiding tube adopts a stainless steel hollow straight tube, and one end of the air guiding tube is threadedly mounted on the side of the oil tank near the integrated valve block.
  • the gas inside the fuel tank passes through the air pipe provided in the upper part of the inner cavity of the fuel tank, passes through the air guiding hole or the vent pipe in the integrated valve block, and then enters the vent plug, and then enters the wire harness hole provided on the protective cover of the electric component, and finally Exchange with outside air through the wire harness hole.
  • the gas inside the fuel tank passes through an air guiding tube disposed in an upper portion of the inner chamber of the oil tank, passes through an air guiding hole or a vent pipe in the integrated valve block, and then enters the vent plug, and enters through the longitudinal vent hole and the lateral vent hole in the vent plug.
  • the vent hole of the waterproof and ventilating component passes through the louver, and then enters the wire harness hole provided on the protective cover of the electric component, and finally exchanges with the outside air through the wire harness hole.
  • FIG. 1 is a schematic structural view of a hydraulic brake unit of a prior art tram
  • FIG. 2 is a schematic structural view of a prior art waterproof vent plug
  • FIG. 3 is a schematic structural view of a hydraulic brake unit provided by the present invention.
  • FIG. 4 is a schematic view 1 of the vent plug provided by the present invention.
  • Figure 5 is a cross-sectional view 1 of the vent plug provided by the present invention.
  • Figure 6 is a schematic view 2 of the vent plug provided by the present invention.
  • Figure 7 is a cross-sectional view 2 of the vent plug provided by the present invention.
  • Figure 8 is an exploded view of the waterproof and breathable component provided by the present invention.
  • 1 electrical component protection cover 1 electrical component protection cover; 2 integrated valve block; 3 fuel tank; 4 vent plug; 5 seal ring; 6 air vent; 7 air duct;
  • vent plug body 41 vent plug body; 42 waterproof and breathable components;
  • cover plate 421 cover plate; 4211 cover plate body; 4212 mounting pin; 422 waterproof gas permeable membrane; 423 assembly body; 4231 through hole; 4232 cover plate mounting hole; 4233 ventilating window; 4234 waterproof gas permeable membrane mounting step; 4235 component screwing head; 4236 component mounting threaded portion; 424 small sealing ring.
  • FIG. 1 and FIG. 2 are prior art.
  • the description of FIG. 1 and FIG. 2 has been embodied in the background art, and details are not described herein again. It is apparent that the embodiments described herein are an embodiment of the invention, rather than all of the embodiments. Based on the embodiments in the present invention, those skilled in the art are not doing All other embodiments obtained under the premise of creative labor, such as replacement of conventional technical means, are within the scope of the present invention.
  • the hydraulic brake unit of the tram of the present invention comprises an electrical component protection cover 1, an integrated valve block 2 and a fuel tank 3, wherein one side of the oil tank 3 is provided with an electrical component protection cover 1, and the integrated valve block 2 is mounted on Between the electrical component protective cover 1 and the oil tank 3, a harness hole (not shown) is provided on the electrical component protective cover 1.
  • the fuel tank ventilation device of the tram brake hydraulic brake unit disclosed in the present invention has the vent plug 4 built in the electric component protection cover 1 to prevent the rainwater and the like from falling into the fuel tank 3 while ensuring smooth ventilation of the fuel tank 3 and the outside.
  • the specific structure of the device includes: a vent plug 4, a sealing ring 5, an air guiding hole 6 and an air guiding tube 7.
  • the air guiding hole 6 adopts a through hole structure and is disposed at the upper end of the integrated valve block 2, that is, the air guiding hole 6 is a through hole opened inside the integrated valve block 2, so that the inner cavity of the electric component protective cover 1 and the inner cavity of the oil tank 3 are realized.
  • the air guiding holes 6 do not interfere with the remaining oil passages in the integrated valve block 2 inside the integrated valve block 2.
  • the vent plug 4 is disposed inside the electric component protection cover 1 and exchanges gas with the outside through the wire harness hole provided in the electric component protection cover 1.
  • the venting plug 4 is built in, and the gas can be exchanged with the outside through the wire harness hole. It affects the smoothness of gas exchange in the fuel tank, and under the cover of the electrical component protection cover 1, it can prevent rainwater and the like from falling directly into the fuel tank.
  • the venting plug 4 is screwed to the air guiding hole 6 on the inner side of the electric component protection cover 1 and integrated on the valve block 2, the venting plug 4 is coaxial with the air guiding hole 6, and the venting plug 4 passes through the air guiding hole 6 and the inner cavity of the integrated valve block 2
  • the sealing ring 5 is mounted on the joint portion of the vent plug 4 and the integrated valve block 2; one end of the air guiding tube 7 is mounted on the air guiding hole 6 on the integrated valve block 2 inside the oil tank 3, and the other end is probed into the air chamber above the oil tank 3
  • the air guiding tube 7 and the air guiding hole 6 are coaxial and communicate with each other.
  • the upper side of the integrated valve block 2 is provided with a passageway in which a vent pipe (not shown) is disposed, and the diameter of the passage is larger than the diameter of the vent pipe to install the vent pipe in the passage.
  • the vent pipe replaces the air guiding hole 6 in the first embodiment, and is connected to the venting plug 4, and the venting plug 4 is coaxial with the vent pipe; the air guiding pipe 7 is installed at one end on the vent pipe and the other end is inserted into the sump 3
  • the air chamber above the inside is coaxial with and communicates with the air duct.
  • Embodiment 1 differs from Embodiment 2 in that the air guiding hole 6 in Embodiment 1 is integrated inside the integrated valve block 2, that is, a passage opened therein; in Embodiment 2, it is first inside the integrated valve block 2. The passage is opened, and then a pipe (vent pipe) is provided inside the passage. At this time, the action of the vent pipe is the same as that of the air guide hole 6 in the first embodiment. It is worth noting that in order to prevent the material in the fuel tank 3 from diffusing through the passage, the annular portion formed between the passage and the vent pipe should Set the sealing device for processing, such as using a sealing ring.
  • the advantage of the embodiment 2 compared with the embodiment 1 is that the air duct (the air guiding hole 6) in the embodiment 1 is fixed and integrated, and the embodiment 2 can pre-channel the inner part of the integrated valve block 2. It is set larger, so that the ventilation duct (snorkel) disposed inside can ensure that the size of the vent tube can be changed according to the amount of ventilation when the diameter is smaller than the passage; and if the vent pipe is blocked, the embodiment 2 is directly It is more convenient to replace the venting duct than the integrated venting duct (air vent 6) in the first embodiment.
  • the vent plug 4 includes a vent plug body 41 and a waterproof venting member 42.
  • the waterproof venting component 42 is in the form of a bolt, which is different from the bolt in that the head of the venting plug body 41 is ventilated.
  • a vent hole 4231 is disposed in the longitudinal direction of the rod portion, and one end of the vent hole 4231 communicates with the louver 4233, and the other end communicates with the lateral vent 412.
  • the louver 4233 is preferably disposed at the side of the head.
  • the vent body 41 includes a mounting screwing head 411, a lateral venting hole 412, a waterproof venting component mounting groove 413, and a main mounting threaded portion 414.
  • the mounting screwing head 411 is a polygonal prism structure, and a plurality of clamping surfaces disposed on opposite sides thereof are disposed on the side surface, and each clamping surface is rounded to ensure that dust and rain do not remain, and the mounting tool is clamped by a wrench or the like.
  • the clamping surface is used to mount the vent plug.
  • the number of the waterproof venting component mounting slots 413 corresponds to the waterproof venting component 42.
  • there are two for installing the waterproof venting component 42 and the two waterproof venting component mounting slots 413 are disposed on the opposite side of the mounting screwing head 411.
  • the clamping surface of the arrangement, the waterproof venting component mounting groove 413 adopts a semi-circular groove, the upper end of the groove is flush with the upper end of the mounting screwing head 411, and the lower end of the groove adopts an arc structure.
  • the lateral vent 412 is disposed at a joint portion of the waterproof venting component mounting groove 413 and the waterproof venting component 42 , and the lateral venting hole 412 extends transversely through the opposite side waterproof venting component mounting groove 413 , and the inner wall of the lateral venting hole 412 is provided with a waterproof and ventilating component
  • the threaded portion 417, the waterproof venting member 42 is threadedly mounted to the lateral vent 412 to achieve lateral venting of the venting plug; however, the manner in which the waterproof venting member 42 and the lateral venting opening 412 are connected is not limited to a threaded connection, and other gases are prevented from leaking. The way can be used.
  • the main mounting thread portion 414 is located directly above the mounting screw head 411, and the main mounting thread portion 414 is attached to the tank vent plug mounting port, that is, to the air guiding hole 6 or the vent pipe in the foregoing embodiment.
  • a longitudinal vent 415 is defined in the axial center of the main mounting threaded portion 414.
  • the longitudinal venting opening 415 and the transverse venting opening 412 are perpendicular to each other and penetrate each other.
  • the longitudinal venting hole 415 and the lateral venting opening 412 form a venting airflow passage together with the oil tank. The effect is to enhance the ventilation effect of the vent plug.
  • the sealing ring 5 is installed at the joint of the vent plug 4 and the integrated valve block 2 or at the joint of the vent plug 4 and the vent pipe to provide a sealing function.
  • One end of the air guiding tube 7 is mounted on the air guiding hole 6 on the integrated valve block 2, or is mounted on the air vent tube, preferably connected by a screw connection, and the other end of the air guiding tube 7 is infiltrated into an air chamber above the oil tank 3, and the air guiding tube 7 is coaxial with the air guiding hole 6 or the vent pipe and communicates with each other.
  • the air guiding tube 7 is preferably a stainless steel hollow straight tube, and other corrosion-resistant materials can also be used.
  • the air guiding tube 7 is penetrated into the oil tank 3 to avoid oil backflow caused by vehicle shaking, and ensure the normal use of the braking unit while ensuring the ventilation of the oil tank. The driving safety of the vehicle.
  • the vent plug 4 includes a vent plug body 41 and a waterproof venting member 42.
  • the vent body 41 includes a mounting screwing head 411, a lateral venting hole 412, a waterproof gas permeable assembly mounting groove 413, and a main mounting thread portion 414.
  • the mounting screwing head 411 is a polygonal prism structure, and a plurality of clamping surfaces disposed on opposite sides thereof are disposed on the side surface, and each clamping surface is rounded to ensure that dust and rain do not remain, and the mounting tool is clamped by a wrench or the like.
  • the venting plug is mounted on the clamping surface.
  • the number of the waterproof venting component mounting slots 413 corresponds to the waterproof venting component 42, which is one for the installation of the waterproof venting component 42 in the present embodiment, and the waterproof venting component mounting groove 413 is disposed on a clamping surface of the mounting screwing head 411.
  • the waterproof venting component mounting groove 413 adopts a semi-circular groove, the upper end of the groove is flush with the upper end of the mounting screwing head 411, and the lower end of the groove adopts an arc structure.
  • the lateral vent 412 is disposed at a joint portion of the waterproof venting component mounting groove 413 and the waterproof venting component 42, and the lateral venting hole 412 extends laterally to the inside of the mounting screwing head 411, but does not penetrate, and the inner wall of the lateral venting hole 412 is waterproof.
  • the venting assembly is provided with a threaded portion 417, and the waterproof venting member 42 is threadedly mounted to the lateral venting opening 412; however, the manner in which the waterproof venting member 42 and the lateral venting opening 412 are connected is not limited to a threaded connection, and other means for preventing gas leakage may be employed. .
  • the main mounting thread portion 414 is located directly above the mounting screw head 411, and the main mounting thread portion 414 is attached to the tank vent plug mounting port, that is, to the air guiding hole 6 or the vent pipe in the foregoing embodiment.
  • a longitudinal vent 415 is defined in the axial center of the main mounting threaded portion 414.
  • the longitudinal venting opening 415 and the transverse venting opening 412 are perpendicular to each other and penetrate each other.
  • the longitudinal venting hole 415 and the lateral venting opening 412 form a venting airflow passage together with the oil tank. The effect is to enhance the ventilation effect of the vent plug.
  • the sealing ring 5 is installed at the joint of the vent plug 4 and the integrated valve block 2 or at the joint of the vent plug 4 and the vent pipe, Sealing effect.
  • One end of the air guiding tube 7 is mounted on the air guiding hole 6 on the integrated valve block 2, or is mounted on the air vent tube, and the connecting manner can be selected as a threaded connection, and the other end of the air guiding tube 7 is infiltrated into the air chamber above the oil tank 3,
  • the air guiding tube 7 is coaxial with and communicates with the air guiding hole 6 or the air vent tube.
  • the air guiding tube 7 is preferably a stainless steel hollow straight tube, and other corrosion-resistant materials can also be used.
  • the air guiding tube 7 is penetrated into the oil tank 3 to avoid oil backflow caused by vehicle shaking, and ensure the normal use of the braking unit while ensuring the ventilation of the oil tank. The driving safety of the vehicle.
  • the number of the waterproof venting members 42 may be greater than two as long as it can be used for the venting function, and the number of the waterproof venting member mounting grooves 413 is the same as that of the waterproof venting member 42.
  • the waterproof gas permeable assembly 42 includes a cover plate 421, a waterproof gas permeable membrane 422, a module body 423 and a small seal ring 424;
  • the lateral vent 412 of the waterproof venting component mounting groove is connected by a thread or the like.
  • the small sealing ring 424 is installed between the assembly body 423 and the waterproof venting component mounting groove 413.
  • the cover 421 is mounted on the outer side of the component body 423, and the waterproof gas permeable membrane is installed.
  • the 422 is mounted between the assembly body 423 and the cover 421.
  • the assembly body 423 includes a vent hole 4231, a cover mounting hole 4223, a vent window 4233, a component screwing head 4235, and a component mounting thread portion 4236.
  • the component screwing head 4235 adopts a hollow structure, and each clip of the component screwing head 4235 A venting window 4233 for gas exchange with the outside is cut out in the middle of the tight upper end; the assembly screwing head 4235 is adjacent to the end of the waterproof venting component mounting groove 413 as a component mounting thread portion 4236, and the component mounting thread portion 4236 is mounted in the lateral direction via the small sealing ring 424.
  • the vent hole 412; the assembly screwing head 4235 and the component mounting thread portion 4236 are provided with a vent hole 4231 extending through the center thereof; the inner wall of the component screwing head 4235 is provided with a waterproof gas permeable membrane mounting step 4234 for mounting the waterproof gas permeable membrane 422.
  • the axis of the assembly body, the axis of the vent hole, the axis of the waterproof gas permeable membrane mounting step, the axis of the assembly and the axis of the component mounting thread coincide.
  • the outer edge of the cover plate 421 is identical in size to the outer edge of the assembly body 423.
  • the cover plate 421 includes a cover body 4211 and a mounting pin 4212.
  • the cover body 4211 adopts a polygonal prism structure conforming to the assembly screw head 4235; the mounting pin 4212 There are many, evenly distributed on the bottom of the cover body 4211 near the side of the assembly body, and the position of the mounting pin 4212 corresponds to the position of the cover mounting hole 4232. When assembled, the mounting pin 4212 is inserted into the cover mounting hole. Inside the 4232, the assembly body 423 is in close contact with the cover plate 421.

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Abstract

一种有轨电车液压制动单元油箱通气装置，包括通气塞（4）、密封圈（5）、导气孔（6）和导气管（7），导气孔采用通孔结构，设置于集成阀块（2）内部上端，通过探入至油箱内空气腔的导气管，以及设置于电气元件保护罩（1）内部的通气塞，实现电气元件保护罩、集成阀块和油箱的连通。通过两只防水透气组件（42）实现油箱的通气，更换时，只需更换防水透气组件，而不需将整个通气塞从油箱拆下，方便检修与更换；当油箱表面覆盖冰雪时，由于通气塞内置于电气元件保护罩内部，且防水透气组件安装于通气塞本体的侧面，防水透气组件的透气面不会被雨雪覆盖，且可有效阻止雨雪等落入，确保列车行车安全。

Description

有轨电车液压制动单元油箱通气装置 技术领域
本发明涉及轨道车辆制动技术领域，具体的说，涉及一种有轨电车液压制动单元油箱通气装置。
背景技术
现代有轨电车由于采用低地板结构，制动系统的安装空间有限，通常采用集成化程度高的阀块式液压单元提供制动压力。
现有的有轨电车液压制动单元组成如图1，包含电气元件保护罩1、集成阀块2、油箱3、通气塞4等。由于油箱3需要与大气畅通才能保证油箱3内液压泵等元件工作正常，因此通常将通气塞4安装在油箱3上表面的安装孔上，安装孔为通孔，保证油箱内腔与大气畅通，通气塞4具有一定疏水特性，一般情况下能够保证油箱3内油液与大气连通，且避免水汽混入油箱3。
在纬度较高的地区，冬天会经常出现雨雪、结冰天气，上述液压单元安装在有轨电车底部且离地表距离很近，通气塞4表面会被积雪覆盖，液压单元内元件工作时会发热使积雪融化，较多的水积累覆盖在通气塞4表面，影响油箱3通气性能，甚至还会在负压的作用下将积水通过通气塞4吸入油箱3，影响液压制动系统工作，威胁行车安全。
现有技术(CN20367070U)公开了一种用于减速机的防水透气塞以及设有这种防水透气塞的减速机，包括透气管、连接管和盖件，透气管呈杯型，具有周壁和底壁，周壁和底壁设有至少一个透气孔，实现壳体内部与外界通气，详见附图2。该透气塞能够防止水汽进入到减速机的壳体内部，避免由于润滑油含水量增加而导致的润滑性能降低。但由于该透气塞结构自上而下依次安装盖板、连接管、透气管，其气流路径为单向纵向结构，当油箱表面覆盖冰雪时，仍会导致透气塞出现雨雪覆盖后通气不畅和雨雪渗入的情况，以致影响列车的行车安全。
发明内容
本发明的目的是提供一种有轨电车液压制动单元油箱通气装置，通气塞内置于电气元件保护罩内部，在保证油箱与外界通气顺畅的同时，避免雨水等落入油箱内部。
本发明的技术方案是：一种有轨电车液压制动单元油箱通气装置，包括通气塞、密封圈、 导气孔和导气管，导气孔采用通孔结构，设置于集成阀块内部上端；通气塞设置于电气元件保护罩内部，并通过电气元件保护罩上设有的线束孔与外界进行气体交换；通气塞安装于电气元件保护罩内部一侧的集成阀块导气孔上，通气塞与导气孔同轴，通气塞通过导气孔与集成阀块内腔连通；密封圈安装于通气塞与集成阀块结合部；导气管一端安装于油箱内部一侧的集成阀块导气孔上，导气管另一端探入油箱内部上方的空气腔，导气管与导气孔同轴且相互连通。
上述导气孔是通过在集成阀块的内部挖掘通道而得到，本发明的通气装置包括通气塞、密封圈、导气孔和导气管，导气孔为靠近集成阀块上端的通孔，此时可看做通气塞通过导气孔与集成阀块内腔连通；此外，导气孔也可以采用设置在集成阀块已有通道内的其他管道(以下称为通气管)代替，即在集成阀块上端设置通道，在通道内设置通气管。
导气孔或通气管实现了电气元件保护罩、集成阀块和油箱的连通，通过探入至油箱内空气腔的导气管，以及设置于电气元件保护罩内部的通气塞，可实现油箱与外部空气之间的连通。
进一步地，为确保该通气塞与外界气体流通的顺畅性，所述通气塞的结构包括通气塞本体和防水透气组件；防水透气组件有至少一个，防水透气组件安装于通气塞本体的侧面；优选防水透气组件有两个，对称安装于通气塞本体的侧面。
通气塞采用将防水透气组件对称或不对称安装于通气塞本体的侧面，通过防水透气组件实现油箱的通气，更换时，只需更换防水透气组件，而不需将整个通气塞从油箱拆下，方便检修与更换。当油箱表面覆盖冰雪时，由于通气塞内置于电气元件保护罩内部，且防水透气组件安装于通气塞本体的侧面，防水透气组件的透气面不会被雨雪覆盖，且可有效阻止雨雪等落入，确保列车行车安全。
进一步地，当防水透气组件为一个时，所述通气塞本体包括安装旋紧头、横向通气孔、防水透气组件安装槽和主安装螺纹部；所述安装旋紧头的侧面设有多个对侧布置的夹紧面，防水透气组件安装槽设置于安装旋紧头的夹紧面上；横向通气孔设置于防水透气组件安装槽与防水透气组件的结合部且向安装旋紧头内部延伸；所述防水透气组件安装于横向通气孔处，所述主安装螺纹部轴心处设置纵向通气孔，纵向通气孔与横向通气孔垂直并互相贯通，纵向通气孔、横向通气孔与油箱共同形成通气塞气流通道。
进一步地，当防水透气组件为两个及以上时，所述通气塞本体包括安装旋紧头、横向通气孔、防水透气组件安装槽和主安装螺纹部；所述安装旋紧头的侧面设有多个对侧布置的夹紧面，防水透气组件安装槽设置于安装旋紧头上对侧布置的夹紧面；横向通气孔设置于防水 透气组件安装槽与防水透气组件的结合部，且横向通气孔横向贯通其他防水透气组件安装槽；所述防水透气组件安装于横向通气孔处，各个防水透气组件之间通过横向通气孔相互贯通；所述主安装螺纹部轴心处设置纵向通气孔，纵向通气孔与横向通气孔垂直并互相贯通，纵向通气孔、横向通气孔与油箱共同形成通气塞气流通道。
通气塞采用将一个或多个防水透气组件对称或不对称安装于通气塞本体的侧面，并通过横向通气孔相互贯通，且在主安装螺纹部轴心处设置与油箱连通的纵向通气孔，纵向通气孔与油箱直接连通，由于纵向通气孔与横向通气孔垂直并互相贯通，纵向通气孔、横向通气孔与油箱共同形成通气塞气流通道，即通气塞的气流路径为横向通道与纵向通道贯通作用，大大提高通气塞的通气透气性。
进一步地，所述防水透气组件为螺栓状，其头部设置通气窗，杆部设置通气孔，通气窗与通气孔相连，且通气孔连通上述的横向通气孔；通气窗优选设置在头部的侧面。
进一步地，所述防水透气组件包含盖板、防水透气膜、组件体和小密封圈；组件体一端通过螺纹方式安装于防水透气组件安装槽的横向通气孔，小密封圈安装于组件体与防水透气组件安装槽之间，盖板安装于组件体外侧，防水透气膜安装于组件体与盖板之间。
进一步地，上述组件体包括通气孔、盖板安装小孔、通气窗、组件旋紧头和组件安装螺纹部；组件旋紧头采用中空结构，在组件旋紧头的每个夹紧面上端中部切出一个与外界进行气体交换的通气窗；组件旋紧头靠近防水透气组件安装槽一端为组件安装螺纹部，组件安装螺纹部经小密封圈安装于横向通气孔；组件旋紧头与组件安装螺纹部轴心设有贯通两者的通气孔；组件旋紧头的内壁上设有用于安装防水透气膜的防水透气膜安装台阶；组件体轴线、通气孔轴线、防水透气膜安装台阶轴线、组件旋紧头和组件安装螺纹部的轴线相重合；上述盖板的外边缘与组件体的外边缘结构尺寸一致；盖板包括盖板本体和安装销，盖板本体采用与组件旋紧头一致的多棱柱结构；安装销共有多只，均布于盖板本体靠近组件体一侧的底部，且安装销的位置与盖板安装小孔的位置一一对应，组装时，安装销插入盖板安装小孔内部，且组件体与盖板紧密贴合。
进一步地，所述防水透气组件安装槽采用半圆形凹槽，凹槽上端与安装旋紧头的上端齐平，凹槽下端采用弧形结构。
进一步地，所述通气塞本体设有用于安装密封圈的主密封圈安装槽，主密封圈安装槽设置于主安装螺纹部与安装旋紧头结合部；该结构可有效保障气体的流通。
进一步地，所述导气管采用不锈钢中空直管，导气管一端采用螺纹方式安装于油箱靠近集成阀块一侧。
工作流程：油箱内部的气体，通过设置在油箱内腔上部的导气管，经过集成阀块内的导气孔或通气管，然后进入通气塞，继而进入设置在电气元件保护罩上的线束孔，最终通过线束孔与外界气体进行交换。具体地，油箱内部的气体，通过设置在油箱内腔上部的导气管，经过集成阀块内的导气孔或通气管，然后进入通气塞，通过通气塞内的纵向通气孔、横向通气孔，进入防水透气组件的通气孔，再经过通气窗，继而进入设置在电气元件保护罩上的线束孔，最终通过线束孔与外界气体进行交换。
附图说明
图1为现有技术有轨电车液压制动单元结构示意图；
图2为现有技术防水透气塞结构示意图；
图3本发明提供的液压制动单元的结构示意图；
图4为本发明提供的通气塞结构示意图1；
图5为本发明提供的通气塞剖视图1；
图6为本发明提供的通气塞结构示意图2；
图7为本发明提供的通气塞剖视图2；
图8为本发明提供的防水透气组件的爆炸图；
图中，1电气元件保护罩；2集成阀块；3油箱；4通气塞；5密封圈；6导气孔；7导气管；
41通气塞本体；42防水透气组件；
411安装旋紧头；412横向通气孔；413防水透气组件安装槽；414主安装螺纹部；
415纵向通气孔；416主密封圈安装槽；417防水透气组件安装螺纹部；
421盖板；4211盖板本体；4212安装销；422防水透气膜；423组件体；4231通孔；4232盖板安装小孔；4233通气窗；4234防水透气膜安装台阶；4235组件旋紧头；4236组件安装螺纹部；424小密封圈。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明的附图，对本发明实施例中的技术方案进行清楚、完整地描述；其中图1和图2为现有技术，对于图1和图2的描述已经体现在背景技术中，此处不再赘述。显然，本发明所描述的实施例是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有做 出创造性劳动的前提下所获得的所有其他实施例，如常规技术手段的替换等，均属于本发明的保护范围。
实施例1
如图3所示，本发明有轨电车的液压制动单元包括电气元件保护罩1、集成阀块2和油箱3，其中油箱3的一侧安装电气元件保护罩1，集成阀块2安装于电气元件保护罩1和油箱3之间，电气元件保护罩1上设有线束孔(图中未示出)。
本发明公开的有轨电车液压制动单元油箱通气装置，将通气塞4内置于电气元件保护罩1内部，在保证油箱3与外界通气顺畅的同时，避免雨水等落入油箱3内部，该通气装置的具体结构为：包括通气塞4、密封圈5、导气孔6和导气管7。
导气孔6采用通孔结构，设置于集成阀块2内部上端，即导气孔6是在集成阀块2内部开设的通孔，实现了电气元件保护罩1内腔与油箱3内腔的相通。导气孔6在集成阀块2内部与集成阀块2内其余油路无干涉。
通气塞4设置于电气元件保护罩1内部，并通过电气元件保护罩1上设有的线束孔与外界进行气体交换，采用通气塞4内置的方式，可通过线束孔与外界进行气体交换，不影响油箱气体交换的畅通性，且在电气元件保护罩1的遮盖作用下，可避免雨水等直接落入油箱。通气塞4通过螺纹方式安装于电气元件保护罩1内部一侧集成阀块2上的导气孔6，通气塞4与导气孔6同轴，通气塞4通过导气孔6与集成阀块2内腔连通；密封圈5安装于通气塞4与集成阀块2的结合部；导气管7一端安装于油箱3内部集成阀块2上的导气孔6上，另一端探入油箱3内部上方的空气腔，导气管7与导气孔6同轴且相互连通。
实施例2
除以下技术特征外，其他与实施例1相同：
集成阀块2内部上侧开设通道，通道内设置通气管(图中未示出)，通道的直径大于通气管的直径，以便将通气管安装于通道内。
在这种情况下，通气管代替了实施例1中的导气孔6，与通气塞4相连，通气塞4与通气管同轴；导气管7一端安装于通气管上，另一端探入油箱3内部上方的空气腔，导气管7与通气管同轴且相互连通。
实施例1与实施例2不同点在于，实施例1中的导气孔6是集成于集成阀块2内部的，即是在其内部开设的通道；实施例2中是先在集成阀块2内部开设通道，然后再在通道的内部设置管道(通气管)，此时，通气管所起的作用与实施例1中导气孔6的作用是相同的。值得注意的是，为了防止油箱3内物质通过通道扩散，通道与通气管之间形成的环形部，应该 设置密封装置进行处理，如采用密封圈的方式。
实施例2与实施例1相比的优点在于：实施例1中的通气管道(导气孔6)是固定不变的，是集成式的；而实施例2可以将集成阀块2内部的通道预设得更大，这样设置在其内部的通气管道(通气管)就可以保证在直径小于通道的前提下，根据通气量的大小变换通气管的尺寸；而且如果通气管道发生堵塞，实施例2直接更换通气管道，比实施例1中对集成式的通气管道(导气孔6)进行清洗更加方便。
实施例3
在实施例1或实施例2的基础上，如图4所示，通气塞4包括通气塞本体41和防水透气组件42。
如图4所示，防水透气组件42共有两个，对称安装于通气塞本体41的侧面；所述防水透气组件42为螺栓状，与螺栓不同之处在于，通气塞本体41的头部设置通气窗4233，杆部纵向设置通气孔4231，通气孔4231一端与通气窗4233连通，另一端与横向通气孔412连通；通气窗4233优选设置在头部的侧面。
如图4和图5所示，通气塞本体41包括安装旋紧头411、横向通气孔412、防水透气组件安装槽413和主安装螺纹部414。
安装旋紧头411为多棱柱结构，其侧面设有多个对侧布置的夹紧面，且各个夹紧面均为圆角结构，确保灰尘与雨水不存留，使用扳手等安装工具夹紧该夹紧面以安装该通气塞。
防水透气组件安装槽413数量与防水透气组件42相对应，本实施例中共有两个，用于安装防水透气组件42，且两个防水透气组件安装槽413设置于安装旋紧头411上对侧布置的夹紧面，防水透气组件安装槽413采用半圆形凹槽，凹槽上端与安装旋紧头411的上端齐平，凹槽下端采用弧形结构。
横向通气孔412设置于防水透气组件安装槽413与防水透气组件42的结合部，且横向通气孔412横向贯通对侧的防水透气组件安装槽413，横向通气孔412的内壁设有防水透气组件安装螺纹部417，防水透气组件42通过螺纹方式安装于横向通气孔412，实现该通气塞的横向透气；但是防水透气组件42与横向通气孔412的连接方式不局限于螺纹连接，其他可以防止气体泄漏的方式均可采用。
主安装螺纹部414位于安装旋紧头411的正上方，主安装螺纹部414安装于油箱通气塞安装口，即与前述实施例中的导气孔6或通气管相连。主安装螺纹部414轴心处设置纵向通气孔415，纵向通气孔415与横向通气孔412垂直并互相贯通，通过纵向通气孔415、横向通气孔412与油箱共同形成通气塞气流通道，三者共同作用增强该通气塞的透气效果。
密封圈5安装于通气塞4与集成阀块2结合部或安装于通气塞4与通气管结合处，起到密封作用。为了更好地保障密封圈5的密封效果，优选在主安装螺纹部414与安装旋紧头411结合部设置主密封圈安装槽416，用于安装密封圈5(如图4和图5所示)。
导气管7的一端安装于集成阀块2上的导气孔6上，或安装于通气管上，优选连接方式为螺纹连接，且导气管7另一端探入油箱3内部上方的空气腔，导气管7与导气孔6或通气管同轴且相互连通。导气管7优选不锈钢中空直管，亦可采用其他耐腐蚀材质，导气管7探入油箱3内部可避免车辆晃动造成的油液倒灌，在保证油箱通气的同时，确保制动单元的正常使用和车辆的行车安全。
实施例4
在实施例1或实施例2的基础上，如图6所示，通气塞4包括通气塞本体41和防水透气组件42。
防水透气组件仅有一个，其结构与实施例3中的防水透气组件结构相同。
如图6和图7所示，通气塞本体41包括安装旋紧头411、横向通气孔412、防水透气组件安装槽413和主安装螺纹部414。
安装旋紧头411为多棱柱结构，其侧面设有多个对侧布置的夹紧面，且各个夹紧面均为圆角结构，确保灰尘与雨水不存留，使用扳手等安装工具夹紧该夹紧面安装该通气塞。
防水透气组件安装槽413数量与防水透气组件42相对应，本实施例中为一个，用于安装防水透气组件42，且防水透气组件安装槽413设置于安装旋紧头411的一个夹紧面上，防水透气组件安装槽413采用半圆形凹槽，凹槽上端与安装旋紧头411的上端齐平，凹槽下端采用弧形结构。
横向通气孔412设置于防水透气组件安装槽413与防水透气组件42的结合部，且横向通气孔412横向延伸至安装旋紧头411的内部，但不贯穿，横向通气孔412的内壁设有防水透气组件安装螺纹部417，防水透气组件42通过螺纹方式安装于横向通气孔412；但是防水透气组件42与横向通气孔412的连接方式不局限于螺纹连接，其他可以防止气体泄漏的方式均可采用。
主安装螺纹部414位于安装旋紧头411的正上方，主安装螺纹部414安装于油箱通气塞安装口，即与前述实施例中的导气孔6或通气管相连。主安装螺纹部414轴心处设置纵向通气孔415，纵向通气孔415与横向通气孔412垂直并互相贯通，通过纵向通气孔415、横向通气孔412与油箱共同形成通气塞气流通道，三者共同作用增强该通气塞的透气效果。
密封圈5安装于通气塞4与集成阀块2结合部或安装于通气塞4与通气管结合处，起到 密封作用。为了更好地保障密封圈5的密封效果，优选在主安装螺纹部414与安装旋紧头411结合部设置主密封圈安装槽416，用于安装密封圈5(如图6和图7所示)。
导气管7的一端安装于集成阀块2上的导气孔6上，或安装于通气管上，采用的连接方式可以选择螺纹连接，且导气管7另一端探入油箱3内部上方的空气腔，导气管7与导气孔6或通气管同轴且相互连通。导气管7优选不锈钢中空直管，亦可采用其他耐腐蚀材质，导气管7探入油箱3内部可避免车辆晃动造成的油液倒灌，在保证油箱通气的同时，确保制动单元的正常使用和车辆的行车安全。
实施例5
除以下技术特征外，其他与实施例3相同：
只要能够用于通气功能，防水透气组件42的数量可大于两个，防水透气组件安装槽413数量与防水透气组件42相同。
实施例6
在实施例3、实施例4或实施例5的基础上，如图8所示，防水透气组件42包含盖板421、防水透气膜422、组件体423和小密封圈424；组件体423一端安装于防水透气组件安装槽的横向通气孔412，采用螺纹等连接方式，小密封圈424安装于组件体423与防水透气组件安装槽413之间，盖板421安装于组件体423外侧，防水透气膜422安装于组件体423与盖板421之间。
组件体423包括通气孔4231、盖板安装小孔4232、通气窗4233、组件旋紧头4235和组件安装螺纹部4236；组件旋紧头4235采用中空结构，在组件旋紧头4235的每个夹紧面上端中部切出一个与外界进行气体交换的通气窗4233；组件旋紧头4235靠近防水透气组件安装槽413一端为组件安装螺纹部4236，组件安装螺纹部4236经小密封圈424安装于横向通气孔412；组件旋紧头4235和组件安装螺纹部4236轴心设有贯通两者的通气孔4231；组件旋紧头4235的内壁上设有用于安装防水透气膜422的防水透气膜安装台阶4234；组件体轴线、通气孔轴线、防水透气膜安装台阶轴线、组件旋紧头和组件安装螺纹部的轴线相重合。
盖板421的外边缘与组件体423的外边缘结构尺寸一致；盖板421包括盖板本体4211和安装销4212，盖板本体4211采用与组件旋紧头4235一致的多棱柱结构；安装销4212有多只，均布于盖板本体4211靠近组件体一侧的底部，且安装销4212的位置与盖板安装小孔4232的位置一一对应，组装时，安装销4212插入盖板安装小孔4232内部，且组件体423与盖板421紧密贴合。

Claims (11)

  1. 有轨电车液压制动单元油箱通气装置，其特征在于：所述通气装置包括通气塞(4)、密封圈(5)、导气孔(6)和导气管(7)，导气孔(6)采用通孔结构，设置于集成阀块(2)内部上端；通气塞(4)设置于电气元件保护罩(1)内部，并通过电气元件保护罩(1)上设有的线束孔与外界进行气体交换；通气塞(4)安装于电气元件保护罩内部一侧的集成阀块导气孔(6)上，通气塞(4)与导气孔(6)同轴，通气塞(4)通过导气孔(6)与集成阀块(2)内腔连通；密封圈(5)安装于通气塞(4)与集成阀块(2)结合部；导气管(7)一端安装于油箱内部一侧集成阀块导气孔(6)上，导气管(7)另一端探入油箱(3)内部上方的空气腔，导气管(7)与导气孔(6)同轴且相互连通。
  2. 根据权利要求1所述的有轨电车液压制动单元油箱通气装置，其特征在于：所述通气塞(4)的结构包括通气塞本体(41)和防水透气组件(42)，防水透气组件(42)有至少一个，防水透气组件(42)安装于通气塞本体(41)的侧面。
  3. 根据权利要求2所述的有轨电车液压制动单元油箱通气装置，其特征在于：当防水透气组件(42)为一个时，所述通气塞本体(41)包括安装旋紧头(411)、横向通气孔(412)、防水透气组件安装槽(413)和主安装螺纹部(414)；所述安装旋紧头(411)的侧面设有多个对侧布置的夹紧面，防水透气组件安装槽(413)设置于安装旋紧头的夹紧面上；横向通气孔(412)设置于防水透气组件安装槽(413)与防水透气组件(42)的结合部且向安装旋紧头(411)的内部延伸，所述防水透气组件(42)安装于横向通气孔(412)处，所述主安装螺纹部(414)轴心处设置纵向通气孔(415)，纵向通气孔(415)与横向通气孔(412)垂直并互相贯通。
  4. 根据权利要求2所述的有轨电车液压制动单元油箱通气装置，其特征在于：当防水透气组件(42)为两个及以上时，所述通气塞本体(41)包括安装旋紧头(411)、横向通气孔(412)、防水透气组件安装槽(413)和主安装螺纹部(414)；所述安装旋紧头(411)的侧面设有多个对侧布置的夹紧面，防水透气组件安装槽(413)设置于安装旋紧头上对侧设置的夹紧面上；横向通气孔(412)设置于防水透气组件安装槽(413)与防水透气组件(42)的结合部，且横向通气孔(412)横向贯通其他防水透气组件安装槽；所述防水透气组件(42)安装于横向通气孔(412)处，各个防水透气组件之间通过横向通气孔(412)相互贯通；所述主安装螺纹部(414)轴心处设置纵向通气孔(415)，纵向通气孔(415)与横向通气孔(412)垂直并互相贯通。
  5. 根据权利要求3或4所述的有轨电车液压制动单元油箱通气装置，其特征在于：所述防水透气组件安装槽(413)采用半圆形凹槽，凹槽上端与安装旋紧头(411)的上端齐平，凹槽下端采用弧形结构。
  6. 根据权利要求3或4所述的有轨电车液压制动单元油箱通气装置，其特征在于：所述通气塞本体(41)设有用于安装密封圈的主密封圈安装槽(416)，主密封圈安装槽(416)设置于主安装螺纹部(414)与安装旋紧头(411)结合部。
  7. 根据权利要求1-4任一所述的有轨电车液压制动单元油箱通气装置，其特征在于：所述导气管(7)采用不锈钢中空直管，导气管(7)一端采用螺纹方式安装于油箱内部集成阀块导气孔(6)上。
  8. 根据权利要求2-4任一所述的有轨电车液压制动单元油箱通气装置，其特征在于：所述防水透气组件(42)为螺栓状，其头部设置通气窗(4233)，杆部设置通气孔(4231)，通气窗(4233)与通气孔(4231)相连，且通气孔(4233)连通横向通气孔(412)。
  9. 根据权利要求2-4任一所述的有轨电车液压制动单元油箱通气装置，其特征在于：所述防水透气组件(42)包含盖板(421)、防水透气膜(422)、组件体(423)和小密封圈(424)；组件体(423)一端通过螺纹方式安装于防水透气组件安装槽的横向通气孔(412)，小密封圈(424)安装于组件体(423)与防水透气组件安装槽(413)之间，盖板(421)安装于组件体外侧，防水透气膜(422)安装于组件体(423)与盖板(421)之间。
  10. 根据权利要求9所述的有轨电车液压制动单元油箱通气装置，其特征在于：组件体(423)包括通气孔(4231)、盖板安装小孔(4232)、通气窗(4233)、组件旋紧头(4235)和组件安装螺纹部(4236)；组件旋紧头(4235)采用中空结构，在组件旋紧头(4235)的每个夹紧面上端中部切出一个与外界进行气体交换的通气窗(4233)；组件旋紧头(4235)靠近防水透气组件安装槽(413)一端为组件安装螺纹部(4236)，组件安装螺纹部(4236)经小密封圈(424)安装于横向通气孔(412)；组件旋紧头(4235)和组件安装螺纹部(4236)轴心设有贯通两者的通气孔(4231)；组件旋紧头(4235)的内壁上设有用于安装防水透气膜(422)的防水透气膜安装台阶(4234)；组件体轴线、通气孔轴线、防水透气膜安装台阶轴线、组件旋紧头和组件安装螺纹部的轴线相重合；盖板(421)的外边缘与组件体(423)的外边缘结构尺寸一致；盖板(421)包括盖板本体(4211)和安装销(4212)，盖板本体(4211)采用与组件旋紧头(4235)一致的多棱柱结构；安装销(4212)有多只，均布于盖板本体(4211)靠近组件体一侧的底部，且安装销(4212)的位置与盖板安装小孔(4232)的位置一一对应，组装时，安装销(4212)插入盖板安装小孔(4232)内部，且组件体(423)与盖板(421) 紧密贴合。
  11. 根据权利要求1所述的有轨电车液压制动单元油箱通气装置，其特征在于：集成阀块(2)内部上侧开设通道，通道内设置通气管，通道的直径大于通气管的直径，通气管用于代替导气孔(6)的设置。
PCT/CN2016/082181 2015-07-13 2016-05-16 有轨电车液压制动单元油箱通气装置 WO2017008568A1 (zh)

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RU2017106621A RU2643852C1 (ru) 2015-07-13 2016-05-16 Вентиляционное устройство масляного бака для узла тормоза с гидравлическим приводом трамвайного вагона
EP16823715.4A EP3168482B1 (en) 2015-07-13 2016-05-16 Oil tank ventilation device for hydraulic brake of tramcars
JP2017519864A JP6325750B2 (ja) 2015-07-13 2016-05-16 路面電車の液圧ブレーキユニット用のオイルタンク通気装置
US15/507,724 US10480551B2 (en) 2015-07-13 2016-05-16 Traction control system for electric multiple units

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CN201510408669.9A CN105041785A (zh) 2015-07-13 2015-07-13 有轨电车液压制动单元油箱通气装置
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