WO2020078125A9 - 一种车载电动无油空气压缩机 - Google Patents

一种车载电动无油空气压缩机 Download PDF

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Publication number
WO2020078125A9
WO2020078125A9 PCT/CN2019/104095 CN2019104095W WO2020078125A9 WO 2020078125 A9 WO2020078125 A9 WO 2020078125A9 CN 2019104095 W CN2019104095 W CN 2019104095W WO 2020078125 A9 WO2020078125 A9 WO 2020078125A9
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Prior art keywords
piston
air compressor
vehicle
electric oil
free air
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PCT/CN2019/104095
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English (en)
French (fr)
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WO2020078125A1 (zh
Inventor
朱彬
李传武
周胜博
钟周乐
Original Assignee
瑞立集团瑞安汽车零部件有限公司
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Priority to EP19872915.4A priority Critical patent/EP3869039B1/en
Priority to US15/734,666 priority patent/US11428215B2/en
Publication of WO2020078125A1 publication Critical patent/WO2020078125A1/zh
Publication of WO2020078125A9 publication Critical patent/WO2020078125A9/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B25/00—Multi-stage pumps
    • F04B25/02—Multi-stage pumps of stepped piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B25/00—Multi-stage pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F04B39/0022—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons piston rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0094—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 crankshaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1046—Combination of in- and outlet valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122—Cylinder block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B5/00—Machines or pumps with differential-surface pistons
    • F04B5/02—Machines or pumps with differential-surface pistons with double-acting pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • F04B53/123—Flexible valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • F04B53/125—Reciprocating valves
    • F04B53/127—Disc valves
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/124—Elastomeric springs
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/22—Compensation of inertia forces
    • F16F15/26—Compensation of inertia forces of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system, i.e. masses connected through a kinematic mechanism or gear system
    • F16F15/264—Rotating balancer shafts
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
    • F16F15/283—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same for engine crankshafts
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30—Flywheels
    • F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30—Flywheels
    • F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
    • F16F15/3153—Securing inertia members to the shafts
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/0011—Balancing, e.g. counterbalancing to produce static balance
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/36—Holes, slots or the like

Definitions

  • the present invention relates to the technical field of air compressors, and in particular, to a vehicle-mounted electric oil-free air compressor.
  • Automobile air compressors are mainly used to provide the necessary air source for automobile braking technology, air suspension system, door opening and closing and auxiliary pneumatic devices. Due to the limited space of the vehicle, the air compressor is often too large to be arranged, so many vehicles use the single-cylinder model with a smaller volume. Due to the inherent structural defects of the single-cylinder piston air compressor, the force is difficult to balance and operate Large vibration and low life. With the implementation of the new national standard GB7258, higher requirements are placed on the exhaust pressure. Since the piston reciprocates, it is divided into compression and intake stages. As the exhaust pressure increases, the piston compression force increases Larger, the force is more unbalanced, and the running vibration is further aggravated.
  • the Chinese utility model patent with authorization announcement number CN205205969U which discloses an on-vehicle DC direct-connecting oil-free scroll air compressor, includes a static scroll, a movable scroll, a compressor crankshaft and a bearing housing,
  • the DC synchronous permanent magnet motor includes a motor body and a motor shaft.
  • the compressor crankshaft is installed in the bearing housing.
  • the input end of the compressor crankshaft and the output end of the motor shaft are connected by splines.
  • the output end of the compressor crankshaft is connected to the movable scroll Fixed connection, one end of the bearing seat is connected with the motor body by bolts, and the other end of the bearing seat is connected with the fixed scroll by bolts; the oil-free vortex in the vehicle-mounted direct-current direct-connection oil-free scroll air compressor provided by the utility model
  • the rotary air compressor and the DC synchronous permanent magnet motor are two independent parts.
  • the motor shaft and compressor crankshaft are connected by splines, and the driving force is directly transmitted to the compressor crankshaft through the motor shaft.
  • the driving efficiency is high and it is easy to maintain; Since the static scroll is provided with a receiving cavity, the whole volume is reduced.
  • the compressor and the motor are independent of each other, occupy a large area, and the overall force is unbalanced.
  • FIG. 1 Another example is the Chinese invention patent with the publication number CN107917059A, which discloses an electrically driven oil-free piston air compressor for vehicles, including a motor, a motor main shaft, a crankcase, a flywheel shaft and connecting rods, a crankcase and a piston cylinder , Two piston cylinders are horizontally opposed on both sides of the crankcase, and the outer side of the two piston cylinders are equipped with exhaust valve plates.
  • the motor is fixed to the rear of the crankcase by bolts, and the motor main shaft directly drives the flywheel shaft to rotate.
  • the flywheel shaft is placed in the crankcase through a bearing bearing, so that the bearing load on the front end of the motor is small, the service life of the motor is extended, and it has the advantages of low noise and high reliability.
  • two piston cylinders are provided. Although the exhaust pressure is increased and the piston compression force is increased, the force is more unbalanced.
  • the object of the present invention is to provide a vehicle-mounted electric oil-free air compressor that integrates a double-acting piston with integrated primary and secondary compression functions to increase the exhaust pressure.
  • the force balance vibration is small, and it is supplemented by an efficient flywheel, which makes the air compressor run smoothly.
  • a vehicle-mounted electric oil-free air compressor includes a motor, a box, a piston, and a flywheel shaft.
  • the motor is fixed on the box, and a cylinder head is arranged on the top of the box; the active end of the coupling is placed on the main shaft of the motor.
  • the elastic body drives the flywheel shaft to rotate, and the piston is provided with a first-level intake valve plate and a first-level exhaust valve plate; the box body is provided with a second-level cavity, and a second-level exhaust gas is arranged at the vent hole on one side of the cavity Valve; the first-stage exhaust valve is also the second-stage intake valve of the compressor.
  • the power source is provided by the motor, and the flywheel shaft is directly rotated through the elastic coupling, and the piston connecting rod placed on the crank will reciprocate up and down.
  • the piston is equipped with a first-level intake valve and a first-level exhaust valve. (Secondary intake valve plate), two-stage exhaust valve plate is arranged on one side of the secondary chamber of the box body.
  • the secondary compression of the gas is completed in the secondary cavity; when the piston moves from the bottom dead center to the top dead center, the internal volume of the primary cavity gradually decreases, and the gas is Compression and pressure increase push the first-stage intake valve into the second-stage cavity.
  • the internal volume of the second-stage cavity gradually increases and the gas compressed by the first-stage cavity is sucked in; the motor rotates once and the piston reciprocates once.
  • the gas is compressed twice, as shown in the airflow direction diagram: the gas is drawn in from the atmosphere, through the air filter, the crankcase, and the piston vent, in order to complete the primary compression in the first chamber and the secondary compression and discharge in the secondary chamber.
  • the lower side of the first-stage exhaust valve plate is an elastic washer, which is fixed to the piston by a vent bolt.
  • the elastic washer selects a wave washer, a butterfly washer, or an O-ring.
  • vent bolts are hexagon socket bolts, hexagon socket bolts, or internal cross bolts.
  • the first-stage intake valve plate is fixed to the upper side of the valve plate by an internal ventilation bolt.
  • the flywheel shaft is placed in the box body through a maintenance-free rolling bearing for bearing, and an anti-loose upper retaining ring and an anti-loose lower retaining ring are arranged.
  • crank structure for bearing placement is designed on the flywheel shaft, and an end retaining ring groove is provided at the end of the crank.
  • the flywheel on the collar side of the flywheel shaft is provided with a shaft diameter and a retaining ring groove for placing a support bearing.
  • the shaft end surface of the flywheel shaft is provided with a plurality of balance de-weighting holes for balancing the centrifugal inertial force and moment of the piston connecting rod; the tail end of the shaft of the flywheel shaft is provided with a claw shape
  • the driven end completes the torque transmission by matching with the elastomer and the active end of the coupling.
  • the small-displacement air compressor can drive the flywheel shaft through the direct connection of the motor shaft, and can also use a pulley, electromagnetic, hydraulic pressure, and the pneumatic clutch is driven by the engine shaft. .
  • a maintenance-free rolling bearing and an anti-loose retaining ring are placed on the crank of the flywheel shaft, and a connecting rod is arranged on the outer ring of the maintenance-free rolling bearing.
  • the small end of the connecting rod has a built-in rolling bearing.
  • the piston pin drives to the piston.
  • the flywheel shaft is small in size, balanced and de-weighted, adopts elastic transmission to buffer and dampen vibration, ensure life, and integrates the flywheel function, which runs smoothly and reliably.
  • a guide ring for guide support and a first piston ring and a second piston ring functioning as a gas seal for the secondary chamber are arranged on the side of the piston.
  • Self-lubricating piston rings, guide rings and maintenance-free grease-lubricated bearings are used to achieve oil-free compression and make the air source cleaner.
  • the end surface of the piston is provided with a cup for sealing and guiding and supporting the primary chamber, a valve plate is arranged on the upper side of the piston, and a lower stage is arranged on the lower side of the valve plate Exhaust valve.
  • the small-displacement air compressor can also adopt the structure of non-guided support cup and valve plate, and the first-level intake valve and the first-level exhaust valve can also be directly installed on the piston.
  • a plurality of inner vent bolt mounting holes are arranged on the end surface of the piston; the central area of the end surface of the piston is provided with a valve plate fixed boss structure, and the ring side of the boss structure is evenly arranged Multiple exhaust channels.
  • the side surfaces of the piston are arranged with a first piston ring, a second piston ring, and a guide ring mounting groove in order from top to bottom.
  • a piston pin mounting hole is provided at the bottom of the piston, and a screw port for bolt fixing is arranged outside the mounting hole.
  • an air inlet cover is further arranged at the front end of the box body, the air inlet cover has an air filter built in, and the inside of the filter is a steady flow check valve.
  • a cooling fan is provided above the motor on the outer side of the box, or that a shroud is arranged outside the front crank drive or magnetic coupling drive of the box.
  • the outer side of the second-stage exhaust valve plate is an exhaust schedule plate, which is fixed by an exhaust joint.
  • the second-stage exhaust valve plate is made of stainless steel metal material or peek non-metallic material.
  • the secondary exhaust valve plate is an annular structure, and the central area of the annular structure is an airflow impact sealing area, and the sealing area is connected with an annular force arm.
  • a bolt mounting through hole is provided on the outer side of the secondary exhaust valve piece.
  • FIG. 1 is a schematic structural view of a preferred embodiment of a vehicle-mounted electric oil-free air compressor according to the present invention.
  • FIG. 2 is a schematic diagram of the piston in the preferred embodiment shown in FIG. 1 of the vehicle-mounted electric oil-free air compressor according to the present invention.
  • FIG. 3 is a cross-sectional view of the piston in the preferred embodiment shown in FIG. 2 of the on-vehicle electric oil-free air compressor according to the present invention.
  • FIG. 4 is a schematic structural view of a flywheel shaft in the preferred embodiment shown in FIG. 1 of the on-vehicle electric oil-free air compressor according to the present invention.
  • FIG. 5 is a schematic diagram of the internal structure of the flywheel shaft in the preferred embodiment shown in FIG. 1 of the on-vehicle electric oil-free air compressor according to the present invention.
  • FIG. 6 is a schematic structural view of an exhaust valve plate in the preferred embodiment shown in FIG. 1 of the on-vehicle electric oil-free air compressor according to the present invention.
  • FIG. 1 a schematic structural view of a preferred embodiment of the vehicle-mounted electric oil-free air compressor according to the present invention.
  • the vehicle-mounted electric oil-free air compressor of the present invention includes a motor 1, a box 3, a piston 21 and a flywheel shaft 30.
  • the motor 1 is fixed on the box 3, and a cylinder head 10 is arranged on the top of the box 3; the main shaft of the motor 1 A coupling active end 32 is placed on the top, and the flywheel shaft 30 is driven to rotate by an elastic body 31.
  • the piston 21 is provided with a first-level intake valve plate 8 and a first-level exhaust valve plate 7;
  • a two-stage exhaust valve sheet 1 is arranged at a vent hole on one side of the chamber;
  • the first-stage exhaust valve sheet 7 is also a second-stage intake valve sheet of the compressor.
  • the power source is provided by the motor 1, and the flywheel shaft 30 is directly driven by the elastomer coupling 31 to rotate, and the piston connecting rod placed on the crank makes a reciprocating motion up and down.
  • the piston 21 is provided with a first-stage intake valve piece 8, a Two-stage exhaust valve sheet (two-stage intake valve sheet) 7 and a two-stage exhaust valve sheet 15 are arranged at the side of the vent hole of the second-stage cavity 14 on the box 3.
  • the secondary compression of the gas is completed in the secondary chamber 14; when the piston 21 moves from the bottom dead center to the top dead center, the primary chamber 9 The volume gradually decreases, the gas is compressed, and the pressure increases to push the first-stage intake valve 7 into the secondary chamber 14, at the same time, the internal volume of the secondary chamber 14 gradually increases, drawing in the gas compressed by the primary chamber 9 ;
  • the motor 1 rotates once, the piston reciprocates once, and the gas is compressed twice, as shown in the direction of the gas flow 23: the gas is drawn in from the atmosphere, after air filtration, the crankcase, and the piston vent, in turn, completed once in the first chamber Compression, complete the second compression discharge in the second cavity, the above process repeatedly appears that the gas is continuously compressed and discharged; where the piston reciprocates once, the first compression piston force and the second compression piston force alternately act on the same piston, The force balance of the pistons cancel each other out, the torque output of the transmission shaft is balanced, and the whole machine runs smoothly with little vibration.
  • the lower side of the first-stage exhaust valve plate 7 is an elastic washer 11, which is fixed to the piston 21 by a vent bolt 5.
  • the elastic washer 11 is made of corrugated gasket, butterfly gasket or O-ring.
  • vent bolts 5 are hexagon socket bolts, hexagon socket bolts or internal cross bolts.
  • the first-stage intake valve piece 8 is fixed on the upper side of the valve plate 4 by an inner vent bolt 6.
  • FIGS. 2 and 3 a schematic diagram of the piston in the preferred embodiment shown in FIG. 1 of the vehicle-mounted electric oil-free air compressor according to the present invention.
  • the flywheel shaft 30 is placed in the housing 3 through a maintenance-free rolling bearing 33 for load bearing, and an anti-loose upper retaining ring 34 and an anti-loose retaining ring 35 are arranged.
  • a structure of a crank 45 for placing a bearing is designed on the flywheel shaft 30, and an end retaining ring groove 46 is provided at the end of the crank.
  • the collar-side flywheel of the flywheel shaft 30 is provided with a shaft diameter 47 and a retaining ring groove 48 for placing support bearings.
  • a plurality of balance de-weighting holes 44 are provided on the shaft end surface of the flywheel shaft 30 for balancing the centrifugal inertial force and moment of the piston connecting rod; the tail end of the shaft of the flywheel shaft 30 is provided with a claw shape from The moving end 49 is used to complete the torque transmission by matching with the elastic body 31 and the coupling active end 32.
  • the small displacement air compressor can drive the flywheel shaft directly through the motor shaft, and can also use a pulley, electromagnetic, hydraulic, and a pneumatic clutch through the engine.
  • the shaft drives.
  • a maintenance-free rolling bearing 29 and an anti-loose retaining ring 25 are placed at the crank of the flywheel shaft 30, and a connecting rod 24 is arranged on the outer ring of the maintenance-free rolling bearing 29, and a rolling bearing 22 is built into the small end of the connecting rod , Through piston pin 20 to piston 21.
  • the flywheel shaft 30 is small in size, balanced and de-weighted, adopts elastic transmission to buffer and dampen vibration, guarantee life, and integrates the flywheel function, which runs smoothly and reliably.
  • FIGS. 4 and 5 a schematic diagram of the structure of the flywheel shaft in the preferred embodiment shown in FIG. 1 of the on-vehicle electric oil-free air compressor according to the present invention.
  • a guide ring 19 for guide support and a first piston ring 13 and a second piston ring 18 that function as a gas seal for the secondary chamber are arranged on the side of the piston 21.
  • Self-lubricating piston rings, guide rings and maintenance-free grease-lubricated bearings are used to achieve oil-free compression and make the air source cleaner.
  • the end surface of the piston 21 is provided with a cup 12 for sealing and guiding and supporting the primary chamber.
  • the upper side of the cup is provided with a valve plate 4 and a lower row of the valve plate is provided with a primary row ⁇ 7 ⁇ Gas valve 7.
  • the small-displacement air compressor can also adopt the structure of non-guided support cup 12 and valve plate 4; the first-stage intake valve disc 8 and the first-stage exhaust valve disc 7 can also be directly installed on the piston 21.
  • the end surface of the piston 21 is also provided with a plurality of inner vent bolt mounting holes 42; the central area of the end surface of the piston 21 is provided with a valve plate fixed boss structure 43, and the ring side of the boss structure is evenly arranged Multiple exhaust channels 36.
  • the side surface of the piston 21 is provided with a first piston ring 37, a second piston ring 38, and a guide ring mounting groove 39 in this order from top to bottom.
  • a piston pin mounting hole 41 is provided at the bottom of the piston 21, and a screw port 40 for bolt fixing is arranged on the outside of the mounting hole.
  • the front end of the box body 3 is further provided with an air intake cover 27, which incorporates an air filter 26, and the inside of the filter is a steady flow check valve 28.
  • a cooling fan 2 is provided above the motor on the outer side of the box 3, or a shroud is arranged outside the front side of the box 3 with a direct crankshaft drive or a magnetic coupling drive.
  • FIG. 6 the structure diagram of the exhaust valve plate in the preferred embodiment shown in FIG. 1 of the on-vehicle electric oil-free air compressor according to the present invention.
  • the outer side of the secondary exhaust valve plate 15 is an exhaust stop plate 16 and is fixed by an exhaust joint 17.
  • the secondary exhaust valve plate 15 is made of stainless steel metal material or peek non-metallic material.
  • the two-stage exhaust valve plate 15 has an annular structure, and the central area of the annular structure is an airflow impact sealing area 52, and an annular force arm 51 is connected to the sealing area.
  • a bolt mounting through hole 50 is provided on the outside of the secondary exhaust valve piece 15.
  • vehicle-mounted electric oil-free air compressor of the present invention includes any combination of various parts in this specification. Due to space limitations and in order to simplify the description, these combinations have not been introduced in detail here, but after reading this description, the scope of the present invention constituted by any combination of the parts constituted by this description is self-evident.

Abstract

一种车载电动无油空气压缩机，包括电机（1）、箱体（3）、活塞（21）和飞轮轴（30），电机（1）固定在箱体（3）上，箱体（3）的顶部布置有缸盖（10）；电机（1）的主轴上安放有联轴器主动端（32），通过弹性体（31）带动飞轮轴（30）旋转，活塞（21）上布置有一级进气阀片（8）、一级排气阀片（7）；箱体（3）上设有二级腔（14），二级腔（14）腔体的一侧通气孔处布置有二级排气阀片（15）；一级排气阀片（7）也为压缩机的二级进气阀片，可提高排气压力，活塞（21）往复运动时，受力平衡振动小，使得空气压缩机运行平稳。

Description

一种车载电动无油空气压缩机 技术领域
本发明涉及空气压缩机技术领域，具体而言，涉及一种车载电动无油空气压缩机。
背景技术
汽车空气压缩机主要用于向汽车制动技术、空气悬挂系统、车门开启关闭及辅助用气动装置提供必要气源。由于整车空间受限，常导致空气压缩机体积过大难于布置，故很多车辆采用体积较小的单缸机型，由于单缸活塞式空气压缩机先天性结构缺陷，受力难于平衡，运行振动大，寿命低，随着新国标的GB7258实施，对排气压力提出更高的要求，由于活塞往复工作时，分压缩和进气阶段，随着排气压力的升高，活塞压缩力加大，受力更加不平衡，运行振动进一步加剧。
例如授权公告号为CN 205330969 U的中国实用新型专利，其公开了一种车载直流直联式无油涡旋空气压缩机，包括静涡旋盘、动涡旋盘、压缩机曲轴和轴承座，直流同步永磁电动机包括电机本体和电机轴，压缩机曲轴安装于轴承座内，压缩机曲轴的输入端和电机轴的输出端通过花键咬合连接，压缩机曲轴的输出端与动涡旋盘固定连接，轴承座的一端与电机本体通过螺栓连接，轴承座的另一端与静涡旋盘通过螺栓连接；本实用新型提供的车载直流直联式无油涡旋空气压缩机中的无油涡旋空气压缩机和直流同步永磁电动机为两个相互独立的部分，电机轴和压缩机曲轴通过花键咬合连接，驱动力通过电机轴直接传递给压缩机曲轴，驱动效率高，且便于维护；由于静涡旋盘设有收容腔，使得整体积减小。但压缩机和电机相互独立，占地面积较大，整体受力不平衡。
又例如公布号为CN 107917059 A的中国发明专利，其公开了一种车用电驱动无油活塞式空气压缩机，包括电机、电机主轴、曲轴箱、飞轮轴和连杆，曲轴箱和活塞缸，曲轴箱的两侧水平对置有两个活塞缸，两活塞缸的外侧均装有排气阀板，所述电机通过螺栓固定在曲轴 箱的尾部，其电机主轴直联驱动飞轮轴旋转，飞轮轴通过一承载支承轴承安放于曲轴箱内，从而实现电机前端轴承负荷小，电机使用寿命延长，而且具有噪音小、可靠性高的优点。但该发明中设置两个活塞缸，虽然排气压力增大了，活塞压缩力加大，但受力更加不平衡。
发明内容
为了解决现有技术存在的上述技术缺陷，本发明的目的在于提供一种车载电动无油空气压缩机，集成设计了一级和二级压缩功能为一体的双作用活塞，来提高排气压力，此活塞往复运动时，受力平衡振动小，并辅以高效的飞轮，使得空压机运行平稳。
为了实现上述设计目的，本发明采用的方案如下：
一种车载电动无油空气压缩机，包括电机、箱体、活塞和飞轮轴，电机固定在箱体上，箱体的顶部布置有缸盖；电机的主轴上安放有联轴器主动端，通过弹性体带动飞轮轴旋转，所述活塞上布置有一级进气阀片和一级排气阀片；箱体上设有二级腔，该腔体的一侧通气孔处布置有二级排气阀片；一级排气阀片也为压缩机的二级进气阀片。活塞往复运动一次时，一级压缩活塞力和二级压缩活塞力相互交替作用在同一活塞上，活塞受力平衡相互抵消，传动轴扭力输出均衡，整机运行平稳振动小。
本发明的一种车载电动无油空气压缩机的工作过程为：
由电机提供动力源，通过弹性体联轴器直联驱动飞轮轴旋转，安放于曲柄上的活塞连杆便做上下往复运动，其中活塞上布置有一级进气阀片，一级排气阀片(二级进气阀片)，箱体上的二级腔的一侧通气孔处布置有二级排气阀片。当活塞从上止点向下止点运动时，一级腔内容积逐渐增大产生负压，气体被吸入一级腔内，以此同时二级腔容积逐渐减小，气体受挤压，气压升高直至推动二级排气阀片排出气体，此时在二级腔内完成气体的二次压缩；当活塞从下止点向上止点运动时，一级腔内容积逐渐减小，气体被压缩，压力升高推动一级进气阀片进入二级腔，以此同时，二级腔内容积逐渐增大，吸入经一级腔压缩后的气体；电机旋转一圈，活塞往复运动一次，气体被压缩两次，如气流方向指示图所示：气体从大气吸 入，经空滤，曲轴箱，活塞通气孔，依次在一级腔完成一次压缩，在二级腔完成二次压缩排出，上述过程反复出现气体被源源不断被压缩排出；其中活塞往复运动一次时，一级压缩活塞力和二级压缩活塞力相互交替作用在同一活塞上，活塞受力平衡相互抵消，传动轴扭力输出均衡，整机运行平稳振动小。
优选的是，所述一级排气阀片的下侧为弹性垫圈，通过一通气螺栓固定于活塞上。
在上述任一方案中优选的是，所述弹性垫圈选用波形垫片、蝶形垫片或O型圈。
在上述任一方案中优选的是，所述通气螺栓选用内六角螺栓、内六角花型螺栓或内十字螺栓。
在上述任一方案中优选的是，所述一级进气阀片通过一内通气螺栓固定在阀板的上侧。
在上述任一方案中优选的是，所述飞轮轴通过一承载用免维护滚动轴承安放于箱体内，并布置有防松上挡圈和防松下挡圈。
在上述任一方案中优选的是，所述飞轮轴上设计有用于放置轴承的曲柄结构，该曲柄末端设有末端挡圈槽。
在上述任一方案中优选的是，所述飞轮轴的轴环侧飞轮上设有用于放置支承轴承的轴径和挡圈槽。
在上述任一方案中优选的是，所述飞轮轴的轴端面上设置有多个平衡去重孔，用于平衡活塞连杆离心惯性力和力矩；飞轮轴的轴尾端内部设有爪形从动端通过与弹性体及联轴器主动端配作完成扭矩传递，小排量空压机可通过电机轴直联驱动飞轮轴，也可采用皮带轮、电磁、液压，气动离合器通过发动机轴带动。
在上述任一方案中优选的是，所述飞轮轴的曲柄处安放有免维护滚动轴承及防松挡圈，免维护滚动轴承的外圈上布置有连杆，该连杆的小端内置滚动轴承，通过活塞销传动至活塞。
飞轮轴体积小巧，平衡去重，采用弹性传动缓冲减振，保证寿命， 并集成飞轮功能，运行平稳可靠。
在上述任一方案中优选的是，所述活塞的侧面上布置有用于导向支承的导向环和起二级腔气体密封作用的第一活塞环和第二活塞环。采用自润滑材料活塞环、导向环及免维护的脂润滑轴承，实现无油压缩，使气源更加清洁。
在上述任一方案中优选的是，所述活塞的端面上布置有起一级腔密封及导向支承作用的皮碗，该皮碗上侧设有阀板，该阀板的下侧布置有一级排气阀片。小排量空压机也可采用无导向支承皮碗和阀板结构，一级进气阀片、一级排气阀片也可采用直接安装于活塞。
在上述任一方案中优选的是，所述活塞的端面上还布置有多个内通气螺栓安装孔；活塞的端面中心区域设置有阀片定程凸台结构，该凸台结构的环侧均匀布置有多个排气通道。
在上述任一方案中优选的是，所述活塞的侧面从上到下依次布置有第一活塞环、第二活塞环及导向环安装沟槽。
在上述任一方案中优选的是，所述活塞的底部设有活塞销安装孔，该安装孔的外侧布置有用于螺栓固定的螺纹口。
在上述任一方案中优选的是，所述箱体的前端还布置有进气盖，该进气盖内置空气滤清器，该滤清器的内侧为稳流单向阀。
在上述任一方案中优选的是，所述箱体的外侧面的电机上方设有冷却风扇或者在箱体的前侧曲轴直联驱动或磁力联轴器驱动外布置导流罩。
在上述任一方案中优选的是，所述二级排气阀片的外侧为排气定程板，并通过一排气接头固紧。
在上述任一方案中优选的是，所述二级排气阀片采用不锈钢金属材料或采用peek非金属材料。
在上述任一方案中优选的是，所述二级排气阀片为环形结构，所述环形结构的中心区域为气流冲击密封区，该密封区连接有环形力臂。
在上述任一方案中优选的是，所述二级排气阀片的外侧设置有螺 栓安装通孔。
附图说明
图1为按照本发明的车载电动无油空气压缩机的一优选实施例的结构示意图。
图2为按照本发明的车载电动无油空气压缩机的图1所示优选实施例中活塞的结构示意图。
图3为按照本发明的车载电动无油空气压缩机的图2所示优选实施例中活塞的断面图。
图4为按照本发明的车载电动无油空气压缩机的图1所示优选实施例中飞轮轴的结构示意图。
图5为按照本发明的车载电动无油空气压缩机的图1所示优选实施例中飞轮轴的内部结构示意图。
图6为按照本发明的车载电动无油空气压缩机的图1所示优选实施例中排气阀片的结构示意图。
具体实施方式
以下的说明本质上仅仅是示例性的而并不是为了限制本公开、应用或用途。下面结合说明书附图对本发明车载电动无油空气压缩机的具体实施方式作进一步的说明。
如图1所示，按照本发明的车载电动无油空气压缩机的一优选实施例的结构示意图。本发明的车载电动无油空气压缩机，包括电机1、箱体3、活塞21和飞轮轴30，电机1固定在箱体3上，箱体3的顶部布置有缸盖10；电机1的主轴上安放有联轴器主动端32，通过弹性体31带动飞轮轴30旋转，所述活塞21上布置有一级进气阀片8和一级排气阀片7；箱体3上设有二级腔14，该腔体的一侧通气孔处布置有二级排气阀片1；一级排气阀片7也为压缩机的二级进气阀片。活塞往复运动一次时，一级压缩活塞力和二级压缩活塞力相互交替作用在同一活塞21上，活塞21受力平衡相互抵消，传动轴扭力输出均衡，整机运行平稳振动小。
本发明的一种车载电动无油空气压缩机的工作过程为：
由电机1提供动力源，通过弹性体联轴器31直联驱动飞轮轴30旋转，安放于曲柄上的活塞连杆便做上下往复运动，其中活塞21上布置有一级进气阀片8，一级排气阀片(二级进气阀片)7，箱体3上的二级腔14的一侧通气孔处布置有二级排气阀片15。当活塞从上止点向下止点运动时，一级腔9内容积逐渐增大产生负压，气体被吸入一级腔9内，以此同时二级腔14容积逐渐减小，气体受挤压，气压升高直至推动二级排气阀片15排出气体，此时在二级腔14内完成气体的二次压缩；当活塞21从下止点向上止点运动时，一级腔9内容积逐渐减小，气体被压缩，压力升高推动一级进气阀片7进入二级腔14，以此同时，二级腔14内容积逐渐增大，吸入经一级腔9压缩后的气体；电机1旋转一圈，活塞往复运动一次，气体被压缩两次，如气流方向23指示图所示：气体从大气吸入，经空滤，曲轴箱，活塞通气孔，依次在一级腔完成一次压缩，在二级腔完成二次压缩排出，上述过程反复出现气体被源源不断被压缩排出；其中活塞往复运动一次时，一级压缩活塞力和二级压缩活塞力相互交替作用在同一活塞上，活塞受力平衡相互抵消，传动轴扭力输出均衡，整机运行平稳振动小。
在本实施例中，所述一级排气阀片7的下侧为弹性垫圈11，通过一通气螺栓5固定于活塞上21。
在本实施例中，所述弹性垫圈11选用波形垫片、蝶形垫片或O型圈。
在本实施例中，所述通气螺栓5选用内六角螺栓、内六角花型螺栓或内十字螺栓。
在本实施例中，所述一级进气阀片8通过一内通气螺栓6固定在阀板4的上侧。
如图2、图3所示，按照本发明的车载电动无油空气压缩机的图1所示优选实施例中活塞的结构示意图。
在本实施例中，所述飞轮轴30通过一承载用免维护滚动轴承33安放于箱体3内，并布置有防松上挡圈34和防松下挡圈35。
在本实施例中，所述飞轮轴30上设计有用于放置轴承的曲柄45结构，该曲柄末端设有末端挡圈槽46。
在本实施例中，所述飞轮轴30的轴环侧飞轮上设有用于放置支承轴承的轴径47和挡圈槽48。
在本实施例中，所述飞轮轴30的轴端面上设置有多个平衡去重孔44，用于平衡活塞连杆离心惯性力和力矩；飞轮轴30的轴尾端内部设有爪形从动端49通过与弹性体31及联轴器主动端32配作完成扭矩传递，小排量空压机可通过电机轴直联驱动飞轮轴，也可采用皮带轮、电磁、液压，气动离合器通过发动机轴带动。
在本实施例中，所述飞轮轴30的曲柄处安放有免维护滚动轴承29及防松挡圈25，免维护滚动轴承29的外圈上布置有连杆24，该连杆的小端内置滚动轴承22，通过活塞销20传动至活塞21。
飞轮轴30体积小巧，平衡去重，采用弹性传动缓冲减振，保证寿命，并集成飞轮功能，运行平稳可靠。
如图4、图5所示，按照本发明的车载电动无油空气压缩机的图1所示优选实施例中飞轮轴的结构示意图。
在本实施例中，所述活塞21的侧面上布置有用于导向支承的导向环19和起二级腔气体密封作用的第一活塞环13和第二活塞环18。采用自润滑材料活塞环、导向环及免维护的脂润滑轴承，实现无油压缩，使气源更加清洁。
在本实施例中，所述活塞21的端面上布置有起一级腔密封及导向支承作用的皮碗12，该皮碗上侧设有阀板4，该阀板的下侧布置有一级排气阀片7。小排量空压机也可采用无导向支承皮碗12和阀板4结构；一级进气阀片8、一级排气阀片7也可采用直接安装于活塞21。
在本实施例中，所述活塞21的端面上还布置有多个内通气螺栓安装孔42；活塞21的端面中心区域设置有阀片定程凸台结构43，该凸台结构的环侧均匀布置有多个排气通道36。
在本实施例中，所述活塞21的侧面从上到下依次布置有第一活 塞环37、第二活塞环38及导向环安装沟槽39。
在本实施例中，所述活塞21的底部设有活塞销安装孔41，该安装孔的外侧布置有用于螺栓固定的螺纹口40。
在本实施例中，所述箱体3的前端还布置有进气盖27，该进气盖内置空气滤清器26，该滤清器的内侧为稳流单向阀28。
在本实施例中，所述箱体3的外侧面的电机上方设有冷却风扇2或者在箱体3的前侧曲轴直联驱动或磁力联轴器驱动外布置导流罩。
如图6所示，按照本发明的车载电动无油空气压缩机的图1所示优选实施例中排气阀片的结构示意图。
在本实施例中，所述二级排气阀片15的外侧为排气定程板16，并通过一排气接头17固紧。
在本实施例中，所述二级排气阀片15采用不锈钢金属材料或采用peek非金属材料。
在本实施例中，所述二级排气阀片15为环形结构，所述环形结构的中心区域为气流冲击密封区52，该密封区连接有环形力臂51。
在本实施例中，所述二级排气阀片15的外侧设置有螺栓安装通孔50。
本领域技术人员不难理解，本发明的车载电动无油空气压缩机包括本说明书中各部分的任意组合。限于篇幅且为了使说明书简明，在此没有将这些组合一一详细介绍，但看过本说明书后，由本说明书构成的各部分的任意组合构成的本发明的范围已经不言自明。

Claims (22)

  1. 一种车载电动无油空气压缩机，包括电机(1)、箱体(3)、活塞(21)和飞轮轴(30)，电机(1)固定在箱体(3)上，箱体(3)的顶部布置有缸盖(10)；电机(1)的主轴上安放有联轴器主动端(32)，通过弹性体(31)带动飞轮轴(30)旋转，其特征在于：活塞(21)上布置有一级进气阀片(8)和一级排气阀片(7)；箱体(3)上设有二级腔(14)，该腔体的一侧通气孔处布置有二级排气阀片(15)。
  2. 如权利要求1所述的车载电动无油空气压缩机，其特征在于：一级排气阀片(7)也为压缩机的二级进气阀片。
  3. 如权利要求1所述的车载电动无油空气压缩机，其特征在于：一级排气阀片(7)的下侧为弹性垫圈(11)，通过一通气螺栓(5)固定于活塞上(21)。
  4. 如权利要求3所述的车载电动无油空气压缩机，其特征在于：弹性垫圈(11)选用波形垫片、蝶形垫片或O型圈。
  5. 如权利要求3所述的车载电动无油空气压缩机，其特征在于：通气螺栓(5)选用内六角螺栓、内六角花型螺栓或内十字螺栓。
  6. 如权利要求1所述的车载电动无油空气压缩机，其特征在于：一级进气阀片(8)通过一内通气螺栓(6)固定在阀板(4)的上侧。
  7. 如权利要求1所述的车载电动无油空气压缩机，其特征在于：飞轮轴(30)通过一承载用免维护滚动轴承(33)安放于箱体(3)内，并布置有防松上挡圈(34)和防松下挡圈(35)。
  8. 如权利要求1或7所述的车载电动无油空气压缩机，其特征在于：飞轮轴(30)上设计有用于放置轴承的曲柄(45)结构，该曲柄末端设有末端挡圈槽(46)。
  9. 如权利要求1或7所述的车载电动无油空气压缩机，其特征在于：飞轮轴(30)的轴环侧飞轮上设有用于放置支承轴承的轴径(47)和挡圈槽(48)。
  10. 如权利要求1或7所述的车载电动无油空气压缩机，其特征在于：飞轮轴(30)的轴端面上设置有多个平衡去重孔(44)，用于 平衡活塞连杆离心惯性力和力矩；飞轮轴(30)的轴尾端内部设有爪形从动端(49)通过与弹性体(31)及联轴器主动端(32)配作完成扭矩传递。
  11. 如权利要求8所述的车载电动无油空气压缩机，其特征在于：飞轮轴(30)的曲柄处安放有免维护滚动轴承(29)及防松挡圈(25)，免维护滚动轴承(29)的外圈上布置有连杆(24)，该连杆的小端内置滚动轴承(22)，通过活塞销(20)传动至活塞(21)。
  12. 如权利要求1所述的车载电动无油空气压缩机，其特征在于：活塞(21)的侧面上布置有用于导向支承的导向环(19)和起二级腔气体密封作用的第一活塞环(13)和第二活塞环(18)。
  13. 如权利要求1或12所述的车载电动无油空气压缩机，其特征在于：活塞(21)的端面上布置有起一级腔密封及导向支承作用的皮碗(12)，该皮碗上侧设有阀板(4)，该阀板的下侧布置有一级排气阀片(7)。
  14. 如权利要求1或12所述的车载电动无油空气压缩机，其特征在于：活塞(21)的端面上还布置有多个内通气螺栓安装孔(42)；活塞(21)的端面中心区域设置有阀片定程凸台结构(43)，该凸台结构的环侧均匀布置有多个排气通道(36)。
  15. 如权利要求1或12所述的车载电动无油空气压缩机，其特征在于：活塞(21)的侧面从上到下依次布置有第一活塞环(37)、第二活塞环(38)及导向环安装沟槽(39)。
  16. 如权利要求1或12所述的车载电动无油空气压缩机，其特征在于：活塞(21)的底部设有活塞销安装孔(41)，该安装孔的外侧布置有用于螺栓固定的螺纹口(40)。
  17. 如权利要求1所述的车载电动无油空气压缩机，其特征在于：箱体(3)的前端还布置有进气盖(27)，该进气盖内置空气滤清器(26)，该滤清器的内侧为稳流单向阀(28)。
  18. 如权利要求1或17所述的车载电动无油空气压缩机，其特 征在于：箱体(3)的外侧面的电机的上方设有冷却风扇(2)或者在箱体(3)的前侧曲轴直联驱动或磁力联轴器驱动外侧布置导流罩。
  19. 如权利要求1所述的车载电动无油空气压缩机，其特征在于：二级排气阀片(15)的外侧为排气定程板(16)，并通过一排气接头(17)固紧。
  20. 如权利要求1或19所述的车载电动无油空气压缩机，其特征在于：二级排气阀片(15)采用不锈钢金属材料或采用peek非金属材料。
  21. 如权利要求1或19所述的车载电动无油空气压缩机，其特征在于：二级排气阀片(15)为环形结构，所述环形结构的中心区域为气流冲击密封区(52)，该密封区连接有环形力臂(51)。
  22. 如权利要求1或19所述的车载电动无油空气压缩机，其特征在于：二级排气阀片(15)的外侧设置有螺栓安装通孔(50)。
PCT/CN2019/104095 2018-10-17 2019-09-03 一种车载电动无油空气压缩机 WO2020078125A1 (zh)

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170066116A1 (en) * 2013-10-09 2017-03-09 Black & Decker Inc. High Inertia Driver System
WO2018157143A1 (en) 2017-02-27 2018-08-30 Nocira, Llc Ear pumps
CN109404248B (zh) 2018-10-17 2024-03-26 浙江瑞立空压装备有限公司 一种车载电动无油空气压缩机
CN109707594A (zh) * 2019-03-04 2019-05-03 瑞立集团瑞安汽车零部件有限公司 一种新型无油活塞式空气压缩机
CN110259661A (zh) * 2019-07-24 2019-09-20 浙江北上新能源科技股份有限公司 一种新型压缩机
DE102019120730A1 (de) * 2019-07-31 2021-02-04 Amk Holding Gmbh & Co. Kg Zylinderkolben für einen Luftkompressor
JP2023073634A (ja) * 2021-11-16 2023-05-26 株式会社マキタ エアコンプレッサ
CN116066322B (zh) * 2023-04-06 2023-07-04 四川丹甫环境科技有限公司 一种压缩结构及包括该压缩结构的空气压缩机

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1488683A (en) * 1922-07-05 1924-04-01 Maximilian F Juruick Compressor
US1817853A (en) * 1930-09-22 1931-08-04 Frick Co Valved piston
US1840265A (en) * 1930-10-02 1932-01-05 Gregory J Spohrer Compressor
GB529620A (en) * 1938-06-10 1940-11-25 Motosacoche Sa Improvements in and relating to air compressors
US2403814A (en) * 1942-02-17 1946-07-09 Maniscalco Pictro Compressor
US2430401A (en) * 1944-06-08 1947-11-04 Heywood Compressor Company Ltd Gas compressor
US2843312A (en) * 1954-07-07 1958-07-15 Sr Pietro Maniscalco Compressor
GB1258333A (zh) * 1968-04-08 1971-12-30
UST883011I4 (en) * 1970-04-27 1971-02-02 Miller two-stage air compressor
US4657488A (en) * 1979-12-14 1987-04-14 Rockwell International Corporation Two stage stepped piston air compressor
IT206976Z2 (it) * 1986-04-04 1987-10-26 Carlovittorio Frigerio Pompa manuale per fluidi in genere.
DE4013298C2 (de) * 1990-04-26 1998-11-12 Mannesmann Sachs Ag Befestigung eines Schwungrades an der Kurbelwelle einer Brennkraftmaschine
JPH07293440A (ja) * 1994-04-27 1995-11-07 Aisin Seiki Co Ltd 圧縮機
US6065947A (en) * 1998-12-14 2000-05-23 Wu; Scott Two-stroke operable pump
US6193482B1 (en) * 1999-10-22 2001-02-27 Chih-Ming Chen Structure of a piston of an air-filing device
US6648612B2 (en) * 2002-03-25 2003-11-18 I-Min Hsiao Oil-free air compressor
US7329105B2 (en) * 2003-12-03 2008-02-12 Haldex Brake Corporation Multi-directional pump
AR054316A1 (es) * 2005-10-25 2007-06-20 Juan G Kippes Compresor con piston de funciones simultaneas
US8657588B2 (en) * 2006-11-08 2014-02-25 Us Airflow Compression apparatus
US9856866B2 (en) * 2011-01-28 2018-01-02 Wabtec Holding Corp. Oil-free air compressor for rail vehicles
CN204610195U (zh) * 2015-02-04 2015-09-02 江苏振翔车辆装备股份有限公司 消防用小排量高压力空气压缩机
CN205330969U (zh) 2016-01-26 2016-06-22 东莞市康驰实业有限公司 一种车载直流直联式无油涡旋空气压缩机
CN106150971A (zh) * 2016-07-22 2016-11-23 瑞立集团瑞安汽车零部件有限公司 一种两级压缩车用活塞式无油空压机
CN107575359A (zh) 2017-09-19 2018-01-12 瑞立集团瑞安汽车零部件有限公司 车用卧式活塞式两级空气压缩机
CN108167157B (zh) * 2017-11-15 2023-10-20 浙江瑞立空压装备有限公司 一种立式空压机
CN107917059A (zh) * 2017-12-08 2018-04-17 瑞立集团瑞安汽车零部件有限公司 一种车用电驱动无油活塞式空气压缩机
CN207813852U (zh) * 2017-12-29 2018-09-04 东莞市兴旭森实业有限公司 一种分级压缩式空气压缩机
CN108539891A (zh) 2018-06-06 2018-09-14 长鹰信质科技股份有限公司 扁线连续波绕错位绕组及含有其绕组的定子
CN109404248B (zh) * 2018-10-17 2024-03-26 浙江瑞立空压装备有限公司 一种车载电动无油空气压缩机
CN209781150U (zh) * 2018-10-17 2019-12-13 瑞立集团瑞安汽车零部件有限公司 一种车载电动无油空气压缩机

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