WO2017071584A1 - Système hydraulique de blocage d'essieu de navette bidirectionnelle - Google Patents

Système hydraulique de blocage d'essieu de navette bidirectionnelle Download PDF

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Publication number
WO2017071584A1
WO2017071584A1 PCT/CN2016/103384 CN2016103384W WO2017071584A1 WO 2017071584 A1 WO2017071584 A1 WO 2017071584A1 CN 2016103384 W CN2016103384 W CN 2016103384W WO 2017071584 A1 WO2017071584 A1 WO 2017071584A1
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WO
WIPO (PCT)
Prior art keywords
lock bridge
lock
pressure
axle
hydraulic system
Prior art date
Application number
PCT/CN2016/103384
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English (en)
Chinese (zh)
Inventor
何春栋
张晓东
杨东升
孙忠磊
夏松江
马送军
Original Assignee
民航协发机场设备有限公司
廊坊中集空港设备有限公司
深圳中集天达空港设备有限公司
中国国际海运集装箱(集团)股份有限公司
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.)
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Application filed by 民航协发机场设备有限公司, 廊坊中集空港设备有限公司, 深圳中集天达空港设备有限公司, 中国国际海运集装箱(集团)股份有限公司 filed Critical 民航协发机场设备有限公司
Priority to DE212016000121.3U priority Critical patent/DE212016000121U1/de
Publication of WO2017071584A1 publication Critical patent/WO2017071584A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
    • B62D7/142—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
    • B62D7/148—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering provided with safety devices

Definitions

  • the utility model relates to the technical field of a shuttle bus, in particular to a hydraulic system for locking a bridge of a two-way traveling and swinging vehicle.
  • the airport shuttle bus is used to pick up and drop off passengers and passengers between the terminal and the remote aircraft. It is suitable for the landings and other places of the civil aviation airports.
  • the two-way shuttle is more suitable for its smaller driving space because it has two driving heads. When the driver needs to turn around during driving, he only needs to drive on the other driving head.
  • the emergence of the two-way shuttle bus effectively solves the problem that the airport shuttle bus has a large turning radius and is difficult to turn around.
  • the function of the hydraulic lock bridge when the vehicle is running (hydraulic pressure keeps the wheel straight-line defined as the hydraulic lock bridge) is usually achieved by the lock-bridge hydraulic system.
  • the above-mentioned lock-bridge hydraulic system is mainly freely steered by the axle of the driver's head, and the axle of the other driver's head is locked by the hydraulic system and the tires on both sides are kept perpendicular to the axle axis under a certain hydraulic pressure. .
  • the full load of the airport shuttle bus is generally around 20t, and the driving speed is generally between 30km/50km/h.
  • the lock-bridge hydraulic system generates a lot of heat during the vehicle walking, which causes the oil temperature in the system to rise. It is prone to squib failure, which makes the shuttle bus unable to achieve normal locking function.
  • the main purpose of the utility model is to propose a two-way traveling swing truck lock bridge hydraulic system, so as to solve the technical problem that the lock bridge hydraulic system of the existing shuttle car cannot be locked normally due to a squib failure.
  • the utility model provides a two-way traveling swing truck lock bridge hydraulic system, wherein the two-way traveling shuttle vehicle comprises two axles arranged on the front and rear sides thereof and two sets of lock bridge mechanisms capable of respectively locking the two axles.
  • the two-way traveling swing truck lock bridge hydraulic system comprises a lock bridge fuel tank, a lock bridge circuit, a lock bridge electromagnetic reversing valve and a squib emergency device;
  • the lock bridge circuit comprises a lock bridge pressure line and a lock bridge return line Connected between the lock bridge fuel tank and the two sets of lock bridge mechanisms respectively;
  • the lock bridge electromagnetic reversing valve is disposed on the lock bridge pressure line to selectively conduct the two sets of lock mechanism One of the oil passages;
  • the squib emergency device is disposed on the lock bridge pressure line and located at the lock bridge pressure tube When the pressure value of the lock bridge pressure line is lower than a lower limit pressure value of the explosion-proof tube, the squib emergency device cuts off the lock bridge pressure line.
  • each set of the lock mechanism includes two lock axle cylinders to respectively lock two wheels at both ends of the axle, and the lock bridge pressure pipeline has four two The branch roads are respectively connected to the four lock cylinders.
  • each of the secondary branch roads of the lock bridge pressure line is provided with the squib emergency device, and each of the squib emergency devices is located corresponding to the second Where the pressure of the secondary branch of the lock pipe pressure line is lower than the lower limit pressure value of the explosion-proof pipe, the corresponding emergency device of the squib is cut off The secondary branch.
  • the squib emergency device includes a solenoid valve and a pressure relay; the solenoid valve selectively connects or disconnects the lock bridge pressure line; the pressure relay can control the electromagnetic The valve, when the pressure value of the lock bridge pressure line is lower than the lower limit pressure value of the explosion-proof tube, the pressure relay controls the electromagnetic valve to cut off the lock bridge pressure line.
  • the lock bridge circuit further includes an explosion-proof tube experimental device, disposed in the lock bridge pressure line, and located between the squib emergency device and the lock mechanism.
  • the explosion-proof pipe experimental device includes an experimental oil tank and a shut-off valve; the experimental oil tank is connected to the lock bridge pressure pipeline through an experimental pipeline; the shut-off valve is disposed in the experimental pipeline to selectively open or cut The experimental pipeline.
  • the lock bridge circuit further includes a pressure compensating device including a liquid filling valve and an accumulator; the liquid filling valve is disposed on the lock bridge pressure line and located at the lock Between the bridge electromagnetic reversing valve and the lock bridge fuel tank, when the pressure value of the lock bridge circuit reaches a working upper limit pressure value, the liquid filling valve adjusts the lock bridge pressure line to release pressure; When the pressure value of the bridge circuit reaches a working lower limit pressure value, the liquid filling valve adjusts the lock bridge pressure line to perform pressure compensation; the accumulator is connected to the liquid filling valve to be in the lock circuit When the pressure value reaches the working upper limit pressure value, the lock circuit is held.
  • a pressure compensating device including a liquid filling valve and an accumulator
  • the lock bridge circuit further includes a pressure alarm device; the pressure alarm device is disposed in the lock bridge circuit, so that the pressure value of the lock bridge circuit is lower than a safe lower limit pressure An alarm is issued when the value is reached.
  • the lock bridge circuit further includes a pressure safety device; the pressure safety device is disposed on the lock bridge pressure line, so that the pressure value in the lock bridge circuit is higher than a safety The upper limit pressure value is overflowed, and the pressure value of the lock circuit is further increased.
  • the lock-bridge electromagnetic reversing valve is an electromagnetic reversing valve with positioning.
  • the two-way traveling swing truck locking bridge hydraulic system further includes an emergency hydraulic system including an emergency oil pump and an emergency electromagnetic valve; the emergency electromagnetic valve is openably and closably connected to the lock bridge fuel tank The emergency oil pump supplies oil to the lock-up circuit between the lock-up circuit and the lock-up circuit.
  • the utility model has the utility model that the hydraulic system of the two-way traveling swing truck lock bridge overcomes the bursting of the hydraulic system of the existing swing truck lock bridge by the setting of the squib emergency device.
  • the problem of the two sides of the axle cannot be locked, and the reliability and safety of the whole vehicle during operation are improved.
  • FIG. 1 is a system diagram of an embodiment of a hydraulic system for a two-way traveling swing truck lock bridge
  • FIG. 2 is an experimental graph of an explosion-proof tube experiment in an embodiment of a hydraulic system for a two-way traveling swing truck lock bridge of the present invention.
  • the reference numerals are as follows: 10, axle; 20, lock axle cylinder; 11, lock axle fuel tank; 21, lock bridge electromagnetic reversing valve; 221, solenoid valve; 222, pressure relay; 231, liquid filling valve; 232, accumulator; 241, pressure relay; 242, buzzer; 25, safety valve; 26, first oil pump; 42, emergency oil pump; 43, emergency solenoid valve.
  • each numerical unit is described in the form of a letter or a number, for example, a pressure unit megapascal (MPa), a time unit minute (min), a second (s), and a distance unit meter (m). ), millimeter (mm), speed unit kilometer per hour (Km/h) and volume unit liter (L), etc., do not limit the application of the present invention in other embodiments.
  • the two-way traveling swing truck lock bridge hydraulic system proposed by the utility model can be applied to a two-way traveling shuttle vehicle.
  • the two-way traveling shuttle has two driving sides, namely, a head, that is, a main driving side and a b-head, that is, a passenger's side, which is also called a front and rear side of a two-way traveling shuttle, and each side of the driving side has a vehicle.
  • the bridge 10 (the front axle is usually a steering axle and the rear axle is usually a steering axle), and each axle 10 is provided with a locking mechanism.
  • two lock cylinders 20 are provided at two wheel positions on either side of the axle.
  • the lock axle cylinder 20 is used to lock the wheel corresponding to the side, that is, the lock mechanism locks the axle 10.
  • the other side axle 10 is locked by the hydraulic pressure of the lock mechanism, and the tire maintains a linear motion.
  • the utility model provides an embodiment of a two-way traveling swing truck lock bridge hydraulic system (hereinafter referred to as a lock bridge hydraulic system).
  • the lock bridge hydraulic system can be used for the lock bridge of the axles on both sides of the shuttle car.
  • the lock bridge hydraulic system mainly comprises a lock bridge fuel tank 11, a lock bridge circuit, a lock bridge electromagnetic reversing valve 21, a squib emergency device, an explosion-proof tube experimental device, a pressure compensating device, a pressure alarm device, a safety valve 25 and an emergency hydraulic system.
  • the oil return filter mounting portion may be provided on the oil return port of the lock axle oil tank 11 to install the oil return filter.
  • the oil return filter is arranged in the lock bridge return line of the lock bridge circuit to filter the oil return in the lock bridge circuit.
  • a mounting portion 1122 for mounting an air cleaner may be provided at the top of the lock axle tank 11.
  • the lock bridge return line of the lock bridge circuit is further provided with a radiator, which is located in the upward direction of the return filter or not limited to other positions of the return filter to provide a lock bridge The function of returning oil in the circuit to dissipate heat and then filter. It should be noted that the oil return filter and the heat sink proposed in the present embodiment are merely illustrative.
  • the oil return filter may be separately provided, or the heat sink may be separately provided, that is, the heat sink may be installed on the oil return line of the lock bridge oil tank 11, or the oil return filter may be disposed on the upper direction of the heat sink.
  • the return oil filter and the radiator should preferably be disposed at the junction of the lock circuit and the return port 112 of the lock cylinder 11 .
  • the lock level tank 11 is provided with a liquid level liquid temperature gauge 13 for real-time monitoring of the liquid level and liquid temperature data in the lock bridge tank 11.
  • one end of the lock bridge pressure line is connected to the oil suction port of the lock axle oil tank 11 through a first oil pump 26 , and the other end is respectively connected to the two sets of lock bridge mechanisms.
  • the lock bridge pressure line has four secondary branches respectively connected to the four lock axle cylinders 20, and the two secondary branches corresponding to the same side axle are connected to one primary branch, two The primary branch roads are respectively connected to the lock bridge electromagnetic reversing valve 21, and the four secondary branches, the two primary branches and the pipeline connected between the lock bridge electromagnetic reversing valve 21 and the lock bridge tank 11 Together, they form the main part of the lock bridge pressure line.
  • a two-position four-way electromagnetic reversing valve with positioning is preferably used, and the corresponding electromagnet is kept energized when the left or right position is operated, and the technical feature actually functions as a double insurance. It avoids the situation that the positioning device of the lock bridge electromagnetic reversing valve 21 cannot be kept in the working position after the failure of the positioning device. At this time, the electromagnet is often energized, the electromagnetic suction keeps the valve core in the working position, and the electromagnet is avoided due to the failure of the electrical system. Loss of electricity, it can not keep in the workplace In this case, the positioning device keeps the spool in the working position.
  • lock-bridge electromagnetic reversing valve 21 avoids that the spool of the lock-bridge electromagnetic reversing valve 21 of the existing double-headed swing truck lock hydraulic system cannot be kept in the normal working position, and the lock hydraulic system fails and The problem of sudden pressure drop in the hydraulic lock bridge.
  • other types of electromagnetic reversing valves may be flexibly selected according to the pipeline arrangement form in the lock bridge circuit, but electromagnetic reversing valves with positioning functions are preferred, and are not limited thereto.
  • the sudden decrease of the lock bridge hydraulic system of the existing shuttle bus is mainly caused by the following reasons: the hose connecting the lock cylinder 20 is squished, causing the hydraulic oil to flow out through the squib side, and the lock hydraulic system cannot establish the pressure (the hydraulic cylinder is off the ground)
  • the gap is usually about 300 mm, which is the smallest part of the vehicle's ground clearance, and the pipeline is prone to bursting.
  • the electrical fault causes the H-type three-position four-way electromagnetic reversing valve (the traditional double-headed shuttle car adopts the H-type three-position four-way electromagnetic reversing valve) to lose power, and the spool has a neutral discharge.
  • the squib emergency device is disposed in the lock bridge pressure line, and is located at a communication between the lock bridge pressure line and the lock mechanism, that is, the lock bridge pressure line.
  • the squib emergency device includes a solenoid valve 221 for selectively connecting or disconnecting the lock bridge pressure line, and a pressure relay 222 for controlling the solenoid valve 221, and the pressure value of the lock bridge pressure line is lower than When an explosion-proof tube lower limit pressure value (for example, 9 MPa), the pressure relay 222 controls the solenoid valve 221 to cut the lock bridge pressure line.
  • the lock bridge electromagnetic reversing valve 21 is preferably a two-position four-way electromagnetic reversing valve with positioning, that is, the lock bridge pressure line is divided into two at the lock bridge electromagnetic reversing valve 21
  • the primary branch road that is, the four secondary roads.
  • the two-position four-way electromagnetic reversing valve has two electric potentials, and each potential corresponds to two primary branches to respectively communicate with the locking mechanism on the front and rear side axles 10 of the shuttle car.
  • the number of the squib emergency devices is four, that is, four solenoid valves 221 and four pressure relays 222 are respectively disposed on the four secondary branches.
  • a set of squib emergency devices may be disposed on the secondary branch connected to one of the lock cylinders 20 of each of the lock mechanisms, or according to the connection between the lock pipe pressure line and the lock mechanism.
  • the other pipe arrangement forms, correspondingly changing the setting mode of the squib emergency device, are not limited thereto, and only need to provide the function of providing the above-mentioned explosion-proof pipe to the front and rear side axles 10 of the shuttle bus.
  • the explosion-proof tube experimental device is disposed on the lock bridge pressure line and is located between the squib emergency device and the lock mechanism.
  • the explosion-proof tube experimental device includes an experimental oil tank and a shut-off valve, and the experimental oil tank is connected to the lock bridge pressure line through an experimental pipeline, and the cut-off valve is disposed in the experimental pipeline to selectively open or cut the experimental pipeline.
  • the utility model designs a squib test and simulates a squib for each secondary branch to ensure that the squib emergency device can effectively prevent the squib when the vehicle is running. Taking one of the secondary branches as an example, the schematic diagram of the design of the explosion-proof pipe test can refer to FIG.
  • an experimental pipeline is connected with the shut-off valve, and the cut-off valve is cut off.
  • the other end of the valve is connected to the experimental tank.
  • Manually open when the secondary branch reaches 15 MPa of normal locking pressure The shut-off valve simulates the pipe burst.
  • the solenoid valve 221 of the secondary branch road automatically cuts off the branch, and the squib test curve shown in Fig. 2 is obtained.
  • the normal bridge pressure of the lock bridge hydraulic system is 15 MPa, and the pressure relay 222 sets the pressure to 9 MPa.
  • the key parameter in the squib test is the pressure setting value of the pressure relay 222.
  • the solenoid valve 221 operates to cut off the squib circuit. If the pressure setting value is too high, the system may drop the pressure to the set value for other reasons and cause a false tube explosion. In fact, the system does not explode. If the pressure setting value is too low, even if the system bursts, it cannot be detected, which may cause the non-explosive pipe action oil to flow through the squib side.
  • the pressure compensating device mainly includes a liquid filling valve 231 and an accumulator 232.
  • the liquid filling valve 231 is disposed on the lock bridge pressure line and is located between the lock bridge electromagnetic reversing valve 21 and the first oil pump 26 .
  • a working upper limit pressure value for example, 15 MPa
  • the liquid filling valve 231 adjusts the lock bridge pressure line to release pressure
  • a lower working pressure value for example
  • the filling valve 231 adjusts the lock-bridge pressure line for pressure compensation.
  • the accumulator 232 is connected to the filling valve 231 for holding the lock circuit when the pressure value of the lock circuit reaches the upper working pressure value (for example, 15 MPa).
  • the pressure alarm device is disposed in the lock bridge pressure line, such as a pressure relay 241 , so that the pressure value in the lock bridge circuit is lower than a safe lower limit pressure value (for example, 9 MPa).
  • a pressure relay 241 When an alarm occurs.
  • a buzzer 242 and an alarm light mounted on the dashboard of the vehicle are connected by a pressure relay 241.
  • the pressure relay 241 sends an electric signal, the buzzer 242 issues an alarm and the alarm light illuminates.
  • other devices or electrical components may be used instead of the above-mentioned pressure alarms, and the function of monitoring the pressure of the lock circuit is not limited thereto.
  • the safety valve 25 is disposed at a position where the lock pressure line is connected to the first oil pump 26 , that is, the first oil pump 26 passes the hydraulic oil in the lock tank 11 through the lock tube pressure tube.
  • the safety valve 25 is mainly used for overflowing when the pressure value of the lock bridge circuit is higher than a safety upper limit pressure value (for example, 18 MPa), that is, the oil supply to the lock bridge pressure line of the first oil pump 26 is cut off to limit the lock.
  • the pressure value of the bridge circuit continues to rise.
  • other devices may be used instead of the safety valve 25 as a pressure safety device to monitor the pressure of the lock circuit, and are not limited thereto.
  • the present embodiment is taken as an example, and the pressure compensation device, the pressure alarm device, and the safety valve 25 are The working principle is as follows: the filling valve 231 sets the working upper limit pressure value to 15 MPa, the working lower limit pressure value is 12.5 MPa, and the safety valve 25 sets the safety upper limit pressure value to 18 MPa.
  • the lock bridge hydraulic system When the lock bridge hydraulic system is working normally, when the pressure of the lock bridge circuit rises to 15 MPa, the N port and the P port of the liquid filling valve 231 are connected, and the first oil pump 26 is discharged from the N port through the lock pipe pressure line. The pressure becomes zero.
  • the S2 port of the liquid filling valve 231 is connected to the accumulator 232 and the lock bridge circuit, and the accumulator 232 plays a pressure maintaining function in the lock bridge circuit, and the lock bridge pressure is maintained at 15 MPa.
  • the P port of the liquid filling valve 231 is connected to the S2 port, and the first oil pump 26 supplements the pressure of the lock bridge circuit through the lock bridge pressure line. Discharge again until the pressure rises to 15 MPa.
  • the pressure relay 241 sets the safety lower limit pressure value to 9 MPa. When the pressure is lower than 9 MPa, an electric signal is issued, the instrument panel lock bridge pressure low alarm light is on, and the buzzer 242 alarms. It should be noted that the above-mentioned working upper limit pressure value, working lower limit pressure value, safety upper limit pressure value and safety lower limit pressure value can be set according to actual conditions, and are not limited thereto.
  • the emergency hydraulic system mainly includes an emergency oil pump 42 and an emergency electromagnetic valve 43.
  • the emergency electromagnetic valve 43 is configured to openably and closably connect the lock bridge oil tank 11 and the lock bridge circuit, so that the emergency oil pump 42 supplies oil to the lock bridge circuit.
  • an emergency fuel tank may be provided, so that the emergency electromagnetic valve 43 can open and close the emergency oil tank and the lock bridge circuit, so that the emergency oil pump 42 is locked to the bridge.
  • the circuit supplies oil.
  • the hydraulic components in the emergency hydraulic system may also be selected from other types, and are not limited thereto.
  • the emergency electromagnetic valve 43 selects to connect the lock bridge tank 11 or the emergency fuel tank with the lock bridge circuit, and locks the bridge through the emergency oil pump 42 to the lock bridge circuit.
  • the mechanism supplies oil and realizes the emergency lock function.
  • the communication position between the emergency line and the lock bridge circuit is the position between the pressure compensating device on the lock bridge pressure line and the safety valve 25, that is, the position between the lock bridge electromagnetic reversing valve 21 and the first oil pump 26.
  • the emergency oil pump 42 when the emergency oil pump 42 is powered as an emergency power source, it works in a short time. Under normal circumstances, when the emergency oil pump 42 replenishes the pressure of the lock-bridge hydraulic system, the continuous working time is the boosting time of the lock-bridge hydraulic system, that is, the pressure is raised from the lower working pressure value (for example, 12.5 MPa) to the upper working pressure value ( For example, 15 MPa), the boost time is usually within 5 seconds.
  • the lock-bridge hydraulic system generally has a supplementary pressure interval of about 40 minutes.
  • the emergency oil pump 42 selected in the present embodiment requires a continuous working time of no more than 3 minutes, and the actual use situation fully satisfies the continuous working time requirement of the emergency oil pump 42.
  • a self-resetting electric lock bridge switch can be mounted on the cab dashboard. After pressing the electric lock bridge switch, the emergency solenoid valve 43 controls the emergency oil pump to provide power to the lock bridge hydraulic system.
  • the emergency hydraulic system is not limited to providing emergency protection for the lock-bridge hydraulic system.
  • the emergency hydraulic system can also provide an emergency support for other hydraulic systems of a two-way shuttle that includes a power steering hydraulic system.
  • the emergency solenoid valve 43 may optionally have a magnetic reversing valve having a plurality of outlet ports for selectively providing emergency fuel supply to one of the hydraulic systems described above, or simultaneously for each hydraulic system of the two-way traveling vehicle. Provide emergency protection.
  • the hydraulic system of the two-way traveling swing truck lock bridge proposed by the utility model overcomes the problem that the existing swing truck lock system hydraulic system is squished after the explosion of the hydraulic system of the swing truck can not lock the two sides of the axle, and improves the whole vehicle. Reliability and safety during operation.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention concerne un système hydraulique de blocage d'essieu d'une navette bidirectionnelle comprenant un réservoir de fluide de blocage d'essieu (11), un dispositif de blocage d'essieu, une soupape d'inversion de solénoïde de blocage d'essieu (21) et un appareil d'urgence de tuyau éclaté. Le circuit de blocage d'essieu comprend une tuyauterie sous pression de blocage d'essieu et une tuyauterie de retour de fluide de blocage d'essieu, respectivement en communication entre le réservoir de fluide de blocage d'essieu (11) et deux ensembles de mécanismes de blocage d'essieu. La soupape d'inversion de solénoïde de blocage d'essieu (21) est agencée sur la tuyauterie sous pression de blocage d'essieu et ouvre sélectivement un trajet de fluide de l'un ou l'autre des deux ensembles de mécanismes de blocage d'essieu. L'appareil d'urgence de tuyau éclaté est agencé au niveau de la tuyauterie sous pression de blocage d'essieu et situé à un endroit où une tuyauterie sous pression de blocage d'essieu est en communication avec les mécanismes de blocage d'essieu. Lorsque la valeur de pression de la tuyauterie de blocage d'essieu est inférieure à une valeur de pression de limite inférieure de prévention de tuyau éclaté, l'appareil d'urgence de tuyau éclaté coupe le circuit de pression de blocage d'essieu. Le système hydraulique de blocage d'essieu, en étant doté de l'appareil d'urgence de tuyau éclaté, résout le problème selon lequel des essieux de chaque côté ne peuvent pas être bloqués en position droite après un éclatement de tuyau dans le système hydraulique de blocage d'essieu d'une navette existante, ce qui permet d'augmenter la fiabilité et la sécurité du véhicule dans son ensemble pendant le fonctionnement.
PCT/CN2016/103384 2015-10-28 2016-10-26 Système hydraulique de blocage d'essieu de navette bidirectionnelle WO2017071584A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212016000121.3U DE212016000121U1 (de) 2015-10-28 2016-10-26 Zweirichtungsfahrt-Pendelverkehrsfahrzeug-Brückenarretierungs-Hydrauliksystem

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Application Number Priority Date Filing Date Title
CN201520848029.5U CN205154812U (zh) 2015-10-28 2015-10-28 双向行驶摆渡车锁桥液压系统
CN201520848029.5 2015-10-28

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WO2017071584A1 true WO2017071584A1 (fr) 2017-05-04

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DE (1) DE212016000121U1 (fr)
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CN107588048A (zh) * 2017-09-15 2018-01-16 花园金波科技股份有限公司 模片防压伤波纹管成型机的液压系统
CN108035922A (zh) * 2017-12-12 2018-05-15 南通皋液重工股份有限公司 一种无级设定自动补偿式液压系统
CN115743294A (zh) * 2022-12-09 2023-03-07 四川蓝海智能装备制造有限公司 一种双向驾驶四轮多功能液压控制系统

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CN205154812U (zh) * 2015-10-28 2016-04-13 民航协发机场设备有限公司 双向行驶摆渡车锁桥液压系统
CN107882821A (zh) * 2016-09-30 2018-04-06 中国国际海运集装箱(集团)股份有限公司 双向车辆锁桥液压系统
CN108438150B (zh) * 2017-11-30 2020-04-14 中船华南船舶机械有限公司 一种位置补偿可伸缩式登船栈桥的工作方法
CN108425315B (zh) * 2017-11-30 2020-04-14 中船华南船舶机械有限公司 一种位置补偿可伸缩式登船栈桥
CN108411766B (zh) * 2017-11-30 2020-05-22 中船华南船舶机械有限公司 一种位置补偿可伸缩式登船栈桥控制系统及控制方法
CN109611400A (zh) * 2018-12-13 2019-04-12 江苏恒立液压股份有限公司 液压系统管路结构
CN115384613A (zh) * 2022-09-13 2022-11-25 廊坊中集空港设备有限公司 一种转向系统、转向控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6253658B1 (en) * 1998-11-25 2001-07-03 Kayaba Industry Co., Ltd. Hydraulic control system
CN1327521A (zh) * 1999-10-20 2001-12-19 日立建机株式会社 管路破裂控制阀
EP1387089A2 (fr) * 2002-07-30 2004-02-04 Kobelco Construction Machinery Co., Ltd. Circuit pour un vérin hydraulique
CN202657130U (zh) * 2012-06-07 2013-01-09 民航协发机场设备有限公司 一种双头摆渡车及其换头行驶切换装置
CN205154812U (zh) * 2015-10-28 2016-04-13 民航协发机场设备有限公司 双向行驶摆渡车锁桥液压系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6253658B1 (en) * 1998-11-25 2001-07-03 Kayaba Industry Co., Ltd. Hydraulic control system
CN1327521A (zh) * 1999-10-20 2001-12-19 日立建机株式会社 管路破裂控制阀
EP1387089A2 (fr) * 2002-07-30 2004-02-04 Kobelco Construction Machinery Co., Ltd. Circuit pour un vérin hydraulique
CN202657130U (zh) * 2012-06-07 2013-01-09 民航协发机场设备有限公司 一种双头摆渡车及其换头行驶切换装置
CN205154812U (zh) * 2015-10-28 2016-04-13 民航协发机场设备有限公司 双向行驶摆渡车锁桥液压系统

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107588048A (zh) * 2017-09-15 2018-01-16 花园金波科技股份有限公司 模片防压伤波纹管成型机的液压系统
CN108035922A (zh) * 2017-12-12 2018-05-15 南通皋液重工股份有限公司 一种无级设定自动补偿式液压系统
CN115743294A (zh) * 2022-12-09 2023-03-07 四川蓝海智能装备制造有限公司 一种双向驾驶四轮多功能液压控制系统
CN115743294B (zh) * 2022-12-09 2023-08-25 四川蓝海智能装备制造有限公司 一种双向驾驶四轮多功能液压控制系统

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