WO2016091150A1 - 一种用于立体车库的液压系统 - Google Patents

一种用于立体车库的液压系统 Download PDF

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Publication number
WO2016091150A1
WO2016091150A1 PCT/CN2015/096650 CN2015096650W WO2016091150A1 WO 2016091150 A1 WO2016091150 A1 WO 2016091150A1 CN 2015096650 W CN2015096650 W CN 2015096650W WO 2016091150 A1 WO2016091150 A1 WO 2016091150A1
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WIPO (PCT)
Prior art keywords
energy storage
unit
hydraulic system
hydraulic
motor oil
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PCT/CN2015/096650
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English (en)
French (fr)
Inventor
夏健鸣
谭周明
许宏勇
唐四琼
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深圳市中科利亨车库设备有限公司
夏健鸣
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Application filed by 深圳市中科利亨车库设备有限公司, 夏健鸣 filed Critical 深圳市中科利亨车库设备有限公司
Publication of WO2016091150A1 publication Critical patent/WO2016091150A1/zh

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Classifications

    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/08—Garages for many vehicles
    • E04H6/12—Garages for many vehicles with mechanical means for shifting or lifting vehicles

Definitions

  • the present invention relates to hydraulic systems, and more particularly to a hydraulic system for a three-dimensional garage.
  • multi-storey tower stereo garages typically transport vehicles from an elevator car to a designated parking floor.
  • the short-range telescopic motion power system of the three-dimensional garage was generally not powered by a hydraulic system. Even if it was only a hydraulic system, the power output could not be performed when the components were damaged.
  • An object of the present invention is to overcome the above drawbacks and to provide a hydraulic system for a stereoscopic vehicle with a stable and continuous power output.
  • a hydraulic system for a three-dimensional garage comprising a power unit, a control unit, an execution unit and an energy storage unit, the power unit comprising two parallel motor oil pumps, the control unit comprising two parallel control electromagnetic a valve unit, the execution unit includes a hydraulic cylinder, the energy storage unit includes an energy storage tank, and an output end of the motor oil pump is connected to the energy storage tank and the control solenoid valve group, and the control electromagnetic valve group is A hydraulic cylinder is connected, and a check valve is disposed between the energy storage tank and the motor oil pump, and a pressure cut end and a pressure output end of the energy storage tank are provided with a shutoff valve.
  • the utility model has the following advantages:
  • the hydraulic system power unit for the stereo garage adopts a parallel dual-motor oil pump, and the control unit adopts a parallel dual-control solenoid valve group, and when a system fails, it will immediately switch to Another system provides power and adds an energy storage unit as a backup energy source.
  • the motor oil pump only supplies oil to the energy storage unit, and the hydraulic cylinder supplies oil. This can reduce the frequent start of the motor, extend the service life of the motor, and ensure that the hydraulic power output is not interrupted, thus ensuring the safe operation of the garage.
  • a pressure shut-off valve is provided at the pressure input and output end of the energy storage unit, and the pressure supply of the energy storage unit can be cut off in each unit of the maintenance system to avoid damage to the maintainer by the oil pressure in the oil circuit.
  • FIG. 1 is an assembled view of a hydraulic system according to an embodiment of the present invention.
  • FIG 3 is an enlarged view of a portion B of an embodiment of the present invention.
  • FIG. 4 is a structural diagram of an energy storage unit according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a hydraulic system according to an embodiment of the present invention.
  • the hydraulic system power unit for the stereo garage adopts a parallel dual-motor oil pump
  • the control unit adopts a parallel dual-control solenoid valve group
  • the energy storage unit is added as a backup energy source.
  • the motor oil pump only supplies oil to the energy storage unit, and the energy storage unit supplies oil to the hydraulic cylinder. This will reduce the frequent start of the motor and extend the life of the motor. It also ensures that the hydraulic power output will not be interrupted, thus ensuring the safe operation of the garage.
  • a shut-off valve is provided at the input and output end of the energy storage tank of the energy storage unit, and the pressure supply of the energy storage unit can be cut off in each unit of the maintenance system to avoid damage to the maintainer by the oil pressure in the oil passage.
  • FIG. 1 to FIG. 5 a hydraulic system for a stereo garage, comprising a power unit 1, a control unit 2, an execution unit 3 and an energy storage unit 4, the power unit 1 comprising two motors connected in parallel
  • the oil pump 11 the control unit 2 includes two parallel control solenoid valve groups 21
  • the execution unit 3 includes a hydraulic cylinder 31
  • the energy storage unit 4 includes an energy storage tank 41.
  • An output end of the motor oil pump 11 is connected to the energy storage unit 4 and the control solenoid valve group 21, and an output end of the control solenoid valve group 21 is connected to the hydraulic cylinder 31, and the energy storage tank 41 and A check valve 12 is disposed between the motor oil pumps 11, and a pressure reducing end and a pressure output end of the energy storage tank 41 are provided with a shutoff valve 43.
  • the hydraulic oil is pressurized and transmitted to the energy storage tank 41 through the motor oil pump 11, and after passing through the control solenoid valve group 21, the actuator unit 3 is introduced to realize the hydraulic transmission, and the control solenoid valve group 21 can realize the control of the hydraulic oil flow direction.
  • the electric contact pressure difference control table 42 can adjust and control the pressure in the energy storage tank 41, so that the pressure in the energy storage tank 41 is at the set pressure, and the starting motor oil pump is charged to the oil pump, which is higher than the set pressure.
  • the value ⁇ cuts off the power supply of the motor oil pump to ensure the safety of the system.
  • the energy storage tank 41 itself stores a certain pressure, and the motor oil pump 11 first puts a little more oil in the energy storage tank 41, and uses the ⁇ storage tank 41 to discharge one by one, which can reduce the number of starts of the motor oil pump 11.
  • the energy storage tank 41 has a larger volume than a general cylinder, so that the impact of the hydraulic pressure can be buffered, and the entire hydraulic system can be miniaturized. When both sets of hydraulic systems fail, due to the certain oil pressure in the energy storage tank 41, it can be used as an emergency power source to support the system for dozens of times.
  • control unit 2 adopts parallel dual-control solenoid valve group 21.
  • control unit 2 adopts parallel dual-control solenoid valve group 21.
  • an electrical contact differential pressure control table 42 is disposed at the outlet of the energy storage tank 41.
  • the electric contact pressure difference control table 42 can adjust and control the pressure in the energy storage tank 41, so that the pressure in the energy storage tank 41 is at the final value of the set pressure, and the motor oil pump is started to be filled with oil. , above the set pressure maximum value, cut off the power supply of the motor oil pump to ensure the safety of the system.
  • the execution unit 3 further includes a support base 32, a positioning shaft 33 and a positioning sleeve 34.
  • the hydraulic cylinder 31 is fixed on the support base 32, and the hydraulic cylinder 31 is provided with an extension rod. 311, the extension rod 311 is telescopically disposed at the end of the hydraulic cylinder 31, and the positioning shaft 33 is telescopically mounted in the support base 32.
  • the extension rod 311 is axially connected to the positioning shaft 33.
  • the positioning sleeve 34 has a conical receiving space therein, and the front end of the positioning shaft 33 and the receiving space are matched with each other.
  • the positioning shaft 33 protrudes from the support base 32 and protrudes into the positioning sleeve 34 under the pushing of the hydraulic cylinder 31, so that the car is parked more smoothly, the car The parking position of the car is more accurate, and the elevator car does not sway during the process of feeding or taking out the parking floor.
  • the positioning shaft 33 is pulled by the hydraulic cylinder 31. From the positioning sleeve 3
  • the support base 32 is provided with a shaft hole 321 for mounting the positioning shaft 33, and the shaft hole 3
  • a detachable guide sleeve 322 is provided in the 21 .
  • the shaft hole 321 is provided with a detachable guide sleeve 322, so that the positioning shaft 33 can be directly contacted with the shaft hole 321 to reduce wear and prolong the service life.
  • control solenoid valve group 21 includes a three-position four-way solenoid valve 211, a two-hydraulic one-way valve 212, and a double one-way throttle valve 213 that are sequentially connected.
  • the three-position four-way solenoid valve 211 can realize the control of the expansion and contraction of the hydraulic cylinder 31, and the two-piston control check valve 212 and the double one-way throttle valve 213 can realize the control of the flow direction and the flow rate of the hydraulic oil.
  • the output end of the motor oil pump 11 is provided with a relief valve 13.
  • the input end of the motor oil pump 11 is provided with a filter 14.
  • the input end of the motor oil pump 11 is provided with a filter 14 to avoid miscellaneous in the hydraulic oil.
  • the quality enters the motor oil pump 11 and causes damage to the motor oil pump 11.
  • a tank connection pipe 51 is installed between the two tanks 5, and the tank connection pipe 51 communicates with the internal space of the two tanks 5.
  • the hydraulic oil required for the hydraulic system can be stored in the oil tank 5, and the fuel tank connecting pipe 51 can adjust the amount of oil between the two oil tanks 5 to avoid the occurrence of oil in one of the fuel tanks 5.
  • Embodiment 1 of the present invention is:
  • a hydraulic system of a three-dimensional garage including a motor oil pump 11, a fuel tank 5, a solenoid valve integration 6, an energy storage unit
  • the oil block 7 and the four execution units 3, the motor oil pump 11 and the oil tank 5 are connected, and a tank connection pipe 51 is installed between the two oil tanks 5, and the tank connection pipe 51 communicates with the inner space of the two oil tanks 5. .
  • the energy storage unit 4 is connected to the outlet of the motor oil pump 11 and is connected to the solenoid valve. 6 is divided into two pipelines to be connected to the oil pipeline block 7, and then branched into the respective execution units from the oil pipeline block 7.
  • the execution unit 3 includes a hydraulic cylinder 31, a support base 32, a positioning shaft 33 and a positioning sleeve 34.
  • the support base 32 is mounted at a frame of the elevator car, and the positioning sleeve 34 is in a three-dimensional garage and an elevator car.
  • the hydraulic cylinder 31 On the steel frame corresponding to the parking position, the hydraulic cylinder 31 is fixed on the support base 32.
  • the positioning shaft 33 is telescopically mounted in the support base 32, and the extension rod of the hydraulic cylinder 31 is axially connected to the positioning shaft 33.
  • the positioning sleeve 34 has a conical receiving space therein, and the front end of the positioning shaft 33 and the receiving space are matched with each other, and the pressure input end and the output end of the energy storage tank 41 are provided with a shutoff valve 43.
  • the power unit of the hydraulic system for the stereo garage adopts a parallel dual-motor oil pump, and the control unit adopts a parallel dual-control solenoid valve group, and when a system fails, it will immediately Switching to another system to provide power, ensuring that the power output will not be interrupted, thus ensuring the safe operation of the garage.
  • the system adds an energy storage unit as an auxiliary component to the system, which can be used as a system to maintain pressure or as an emergency power source. It can absorb system pulsation, mitigate hydraulic shock, and avoid frequent start of motor oil pump to improve service life.
  • the expansion speed of the hydraulic cylinder is not affected by the flow rate of the oil pump, and the capacity of the motor oil pump can be reduced on the premise of ensuring the expansion speed of the hydraulic cylinder, thereby reducing the cost.
  • the hydraulic system is used in a three-dimensional garage to make the car stop more smoothly, the parking position of the car is more accurate, and the elevator car does not sway during the process of feeding or taking out the parking floor.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

一种用于立体车库的液压系统，包括动力单元（1）、控制单元（2）、执行单元（3）和储能单元（4）。动力单元（1）包括两个并联的电机油泵（11）。控制单元（2）包括两个并联的控制电磁阀组（21）。执行单元（3）包括液压缸（31）。储能单元（4）包括储能罐（41）。电机油泵（11）的输出端与储能罐（41）和控制电磁阀组（21）的输入端连接，储能罐（41）的压力输入与输出端设有截止阀（43）。该液压系统的动力单元（1）采用并联的电机油泵（11），控制单元采用并联的控制电磁阀组（21），当一套系统发生故障时会立刻切换到另一套系统提供动力，并且增加储能单元（4）作为备用能源，保证动力输出不会中断，以此保证车库的运行安全。

Description

一种用于立体车库的液压系统
[0001] 技术领域
[0002] 本发明涉及液压系统， 特别涉及一种用于立体车库的液压系统。
[0003] ¾匕體
[0004] 目前， 多层塔式立体车库一般是由升降机轿厢运送车辆到指定的停车层。 以往 立体车库的短程伸缩运动动力系统一般没有采用液压系统提供动力， 即使有也 只是一套液压系统， 当部件损坏吋就不能进行动力输出。
[0005] 发明内容
[0006] 本发明的目的在于克服了上述缺陷， 提供一种动力输出稳定连续的用于立体车 库的液压系统。
[0007] 为了解决上述技术问题， 本发明采用的技术方案为：
[0008] 一种用于立体车库的液压系统， 包括动力单元、 控制单元、 执行单元和储能单 元， 所述动力单元包括两个并联的电机油泵， 所述控制单元包括两个并联的控 制电磁阀组， 所述执行单元包括液压缸， 所述储能单元包括储能罐， 所述电机 油泵的输出端与所述储能罐和所述控制电磁阀组连接， 所述控制电磁阀组与液 压缸连接， 所述储能罐和所述电机油泵之间设有单向阀， 所述储能罐的压力输 入端和压力输出端设有截止阀。
[0009] 本发明的有益效果在于： 用于立体车库的液压系统动力单元采用了并联的双电 机油泵， 控制单元采用了并联的双控制电磁阀组， 当一套系统发生故障吋会立 刻切换到另一套系统提供动力， 并且增加了储能单元作为备用能源， 电机油泵 只向储能单元供油， 液压缸供油。 这样即可减少马达的频繁启动， 延长马达的 使用寿命， 又保证了液压动力输出不会中断， 以此保证车库的运行安全。 同吋 , 因为是储能单元向执行单元供油， 所以液压缸的伸缩速度不受油泵流量的影 响， 可以在保证液压缸伸缩速度的前提下降 ί氐电机油泵的容量， 进而降 ί氐成本 , 在储能单元的压力输入输出端设有截止阀， 可在维护系统各单元吋切断储能 单元压力供给， 以避免油路中油压对维护者的伤害。 [0010] 國綱
[0011] 图 1为本发明实施例的液压系统装配图。
[0012] 图 2为本发明实施例的 A处放大图。
[0013] 图 3为本发明实施例的 B处放大图。
[0014] 图 4为本发明实施例的储能单元结构图。
[0015] 图 5为本发明实施例的液压系统原理图。
[0016] 标号说明：
[0017] 动力单元 1; 2、 控制单元； 3、 执行单元； 4、 储能单元； 5、 油箱； 6、 电磁阀 集成； 7、 油路块； 11、 电机油泵； 12、 单向阀； 13、 溢流阀； 14、 过滤器； 21 、 控制电磁阀组； 211、 三位四通电磁阀； 212、 双液控单向阀； 213、 双单向节 流阀； 31、 液压缸； 32、 支撑座； 33、 定位轴； 34、 定位套筒； 311、 伸出杆； 321、 轴孔； 322、 导向套筒； 41、 储能罐； 42、 压差控制表； 43、 截止阀； 51 、 油箱连接管。
[0018] t m^
[0019] 为详细说明本发明的技术内容、 构造特征、 所实现目的及效果， 以下结合实施 方式并配合附图详予说明。
[0020] 本发明最关键的构思在于： 用于立体车库的液压系统动力单元采用了并联的双 电机油泵， 控制单元采用了并联的双控制电磁阀组， 并且增加了储能单元作为 备用能源， 电机油泵只向储能单元供油， 储能单元再向液压缸供油。 这样即可 减少马达的频繁启动， 延长马达的使用寿命。 又保证了液压动力输出不会中断 , 以此保证车库的运行安全。 同吋， 因为是储能单元向执行单元供油， 所以液 压缸的伸缩速度不受油泵流量的影响， 可以在保证液压缸伸缩速度的前提下降 ί氐电机油泵的容量， 进而降 ί氐成本，在储能单元的储能罐输入输出端设有截止阀 , 可在维护系统各单元吋切断储能单元压力供给， 以避免油路中油压对维护者 的伤害。
[0021] 请参阅图 1至图 5, —种用于立体车库的液压系统， 包括动力单元 1、 控制单元 2 、 执行单元 3和储能单元 4, 所述动力单元 1包括两个并联的电机油泵 11 , 所述控 制单元 2包括两个并联的控制电磁阀组 21 , 所述执行单元 3包括液压缸 31 , 所述 储能单元 4包括储能罐 41。 所述电机油泵 11的输出端与所述储能单元 4和所述控 制电磁阀组 21连接， 所述控制电磁阀组 21的输出端与所述液压缸 31连接， 所述 储能罐 41和所述电机油泵 11之间设有单向阀 12, 所述储能罐 41的压力输入端和 压力输出端设有截止阀 43。
[0022] 本发明的工作原理为：
[0023] 液压油通过电机油泵 11加压传输到储能罐 41 , 经过控制电磁阀组 21后通入执行 单元 3, 实现液压传动， 控制电磁阀组 21可实现对液压油流向的控制。 电接点压 差控制表 42可以调整控制储能罐 41内的压力， 使储能罐 41内的压力氐于设定压 力最 ί氐值吋启动电机油泵向其充油， 高于设定压力最高值吋截断电机油泵的供 电， 保证系统安全。
[0024] 本装置中采用了 2套相互并联的两组电机油泵 11和相互并联的两组控制电磁阀 组 21 , 当其中某一部件发生故障吋， 系统程序会启动与之功能相同的另一部件 , 由于在系统中两者的工作位置相同， 因此另一部件可以立即代替故障部件， 使系统中的动力不会中断， 保证了车库的运行安全。 另外增加了储能罐 41 , 电 机油泵只向储能单元供油， 储能单元再向液压缸供油。 这样即可减少马达的频 繁启动， 延长马达的使用寿命。 又保证了液压动力输出不会中断， 以此保证车 库的运行安全， 并能够吸收系统脉动， 缓和液压冲击。 同吋， 因为是储能单元 向执行单元供油， 所以液压缸的伸缩速度不受油泵流量的影响， 可以在保证液 压缸伸缩速度的前提下降 ί氐电机油泵的容量， 进而降 ί氐成本。
[0025] 在短程往复运动中需要频繁的幵启电机油泵 11 , 伹设置了储能罐 41后， 储能罐
41本身储存有一定的压力， 电机油泵 11先放多一点油在储能罐 41中， 使用吋储 能罐 41逐次放出， 可以减少电机油泵 11的启动次数。 储能罐 41具有比一般油缸 大的体积， 这样可以缓冲液压的冲击， 也可以把整个液压系统小型化。 当两套 液压系统均失效吋， 由于储能罐 41中有一定的油压， 可以作为紧急动力源还能 支持系统工作数十次。
[0026] 从上述描述可知， 本发明的有益效果在于： 用于立体车库的液压系统动力单元
1采用了并联的双电机油泵 11 , 控制单元 2采用了并联的双控制电磁阀组 21 , 当 一套系统发生故障吋会立刻切换到另一套系统提供动力， 并且增加了储能单元 作为备用能源， 保证了动力输出不会中断， 以此保证车库的运行安全。
[0027] 进一步的， 所述储能罐 41出口处设有电接点压差控制表 42。
[0028] 由上述描述可知， 电接点压差控制表 42可以调整控制储能罐 41内的压力， 使储 能罐 41内的压力氐于设定压力最氐值吋启动电机油泵向其充油， 高于设定压力 最高值吋截断电机油泵的供电， 保证系统安全。
[0029] 进一步的， 所述执行单元 3还包括支撑座 32、 定位轴 33和定位套筒 34, 所述液 压缸 31固定在所述支撑座 32上， 所述液压缸 31设有伸出杆 311 , 所述伸出杆 311 可伸缩的设置在所述液压缸 31—端， 所述定位轴 33可伸缩地安装在支撑座 32内
, 所述伸出杆 311与定位轴 33轴向相连， 所述定位套筒 34内具有圆锥形的容纳空 间， 定位轴 33的前端与所述容纳空间相互匹配。
[0030] 由上述描述可知， 当升降机轿厢平层后， 定位轴 33在液压缸 31的推动下从支撑 座 32上伸出并伸入定位套筒 34内， 使轿厢停靠更加平稳， 轿厢的停靠位置更加 准确， 车辆被送入或取出停车层的过程中升降机轿厢不会产生晃动， 待升降机 轿厢完成送出或载入车辆的任务后， 定位轴 33在液压缸 31的拉动下从定位套筒 3
4中缩回至支撑座 32内。
[0031] 进一步的， 所述支撑座 32上设有用于安装所述定位轴 33的轴孔 321 , 所述轴孔 3
21内设有可拆卸的导向套筒 322。
[0032] 由上述描述可知， 所述轴孔 321内设有可拆卸的导向套筒 322, 这样可避免定位 轴 33直接和轴孔 321接触， 从而减少磨损， 延长使用寿命。
[0033] 进一步的， 所述控制电磁阀组 21包括依次连接的三位四通电磁阀 211、 双液控 单向阀 212和双单向节流阀 213。
[0034] 由上述描述可知， 三位四通电磁阀 211可实现对液压缸 31伸缩的控制， 双液控 单向阀 212和双单向节流阀 213可实现对液压油流向和流量的控制
[0035] 进一步的， 所述电机油泵 11输出端设有溢流阀 13。
[0036] 由上述描述可知， 当管路内油压过高吋， 液压油会从溢流阀 13排出， 从而降 ί氐管路内的油压， 保护液压系统。
[0037] 进一步的， 所述电机油泵 11输入端设有过滤器 14。
[0038] 由上述描述可知， 所述电机油泵 11输入端设有过滤器 14, 可避免液压油中的杂 质进入电机油泵 11 , 造成电机油泵 11的损坏。
[0039] 进一步的， 还包括两个油箱 5, 所述两个油箱 5分别连接于所述两个电机油泵 11
, 所述两个油箱 5之间安装有油箱连接管 51 , 所述油箱连接管 51联通所述两个油 箱 5的内部空间。
[0040] 由上述描述可知， 油箱 5内可存放液压系统所需要的液压油， 油箱连接管 51可 调节两油箱 5之间的油量， 避免其中一个油箱 5空油的现象发生。
[0041] 请参照图 1至图 5, 本发明的实施例一为：
[0042] 一种立体车库的液压系统， 包括电机油泵 11、 油箱 5、 电磁阀集成 6、 储能单元
4、 油路块 7和四个执行单元 3, 电机油泵 11和油箱 5连接， 两个油箱 5之间安装有 油箱连接管 51 , 所述油箱连接管 51联通所述两个油箱 5的内部空间。 储能单元 4 连接于电机油泵 11出口， 接入电磁阀集成 6后分成两条管路接入油路块 7, 之后 从油路块 7分流接入各个执行单元中。 所述执行单元 3包括液压缸 31、 支撑座 32 、 定位轴 33和定位套筒 34, 所述支撑座 32安装在升降机轿厢的边框处， 所述定 位套筒 34立体车库中与升降机轿厢的停靠位置对应的钢构架上， 液压缸 31固定 在所述支撑座 32上， 所述定位轴 33可伸缩地安装在支撑座 32内， 液压缸 31的伸 出杆与定位轴 33轴向相连， 所述定位套筒 34内具有圆锥形的容纳空间， 定位轴 3 3的前端与所述容纳空间相互匹配， 所述储能罐 41的压力输入端与输出端设有截 止阀 43。
[0043] 综上所述， 本发明提供的用于立体车库的液压系统动力单元采用了并联的双电 机油泵， 控制单元采用了并联的双控制电磁阀组， 当一套系统发生故障吋会立 刻切换到另一套系统提供动力， 保证了动力输出不会中断， 以此保证车库的运 行安全， 系统中增加了储能单元作为辅助元件与系统联接， 可起到系统保压或 作为紧急动力源， 并能够吸收系统脉动， 缓和液压冲击， 还可避免电机油泵频 繁启动， 提高使用寿命。 同吋， 因为是储能单元向执行单元供油， 所以液压缸 的伸缩速度不受油泵流量的影响， 可以在保证液压缸伸缩速度的前提下降 ί氐电 机油泵的容量， 进而降 ί氐成本， 该液压系统用于立体车库， 使轿厢停靠更加平 稳， 轿厢的停靠位置更加准确， 车辆被送入或取出停车层的过程中升降机轿厢 不会产生晃动。 以上所述仅为本发明的实施例， 并非因此限制本发明的专利范围， 凡是利用本 发明说明书及附图内容所作的等效结构或等效流程变换， 或直接或间接运用在 其他相关的技术领域， 均同理包括在本发明的专利保护范围内。
技术问题
问题的解决方案
发明的有益效果

Claims

权利要求书
一种用于立体车库的液压系统， 其特征在于： 包括动力单元、 控制单 元、 执行单元和储能单元， 所述动力单元包括两个并联的电机油泵， 所述控制单元包括两个并联的控制电磁阀组， 所述执行单元包括液压 缸， 所述储能单元包括储能罐， 所述电机油泵的输出端与所述储能罐 和所述控制电磁阀组连接， 所述控制电磁阀组与液压缸连接， 所述储 能罐和所述电机油泵之间设有单向阀， 所述储能罐的压力输入端和压 力输出端设有截止阀。
根据权利要求 1所述的用于立体车库的液压系统， 其特征在于： 所述 储能罐出口处设有电接点压差控制表。
根据权利要求 1所述的用于立体车库的液压系统， 其特征在于： 所述 执行单元还包括支撑座、 定位轴和定位套筒， 所述液压缸固定在所述 支撑座上， 所述液压缸设有伸出杆， 所述伸出杆可伸缩的设置在所述 液压缸一端， 所述定位轴可伸缩地安装在支撑座内， 所述伸出杆与定 位轴轴向相连， 所述定位套筒内具有圆锥形的容纳空间， 定位轴的前 端与所述容纳空间相互匹配。
根据权利要求 3所述的用于立体车库的液压系统， 其特征在于： 所述 支撑座上设有用于安装所述定位轴的轴孔， 所述轴孔内设有可拆卸的 导向套筒。
根据权利要求 1所述的用于立体车库的液压系统， 其特征在于： 所述 控制电磁阀组包括依次连接的三位四通电磁阀、 双液控单向阀和双单 向节流阀。
根据权利要求 1所述的用于立体车库的液压系统， 其特征在于： 所述 电机油泵输出端设有溢流阀。
根据权利要求 1所述的用于立体车库的液压系统， 其特征在于： 所述 电机油泵输入端设有过滤器。
根据权利要求 1所述的用于立体车库的液压系统， 其特征在于： 还包 括两个油箱， 所述两个油箱分别连接于所述两个电机油泵， 所述两个 油箱之间安装有油箱连接管， 所述油箱连接管联通所述两个油箱的内 部空间。
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