WO2016197834A1 - Système de levage hydraulique commandé électriquement et ascenseur de levage hydraulique commandé électriquement - Google Patents

Système de levage hydraulique commandé électriquement et ascenseur de levage hydraulique commandé électriquement Download PDF

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Publication number
WO2016197834A1
WO2016197834A1 PCT/CN2016/084033 CN2016084033W WO2016197834A1 WO 2016197834 A1 WO2016197834 A1 WO 2016197834A1 CN 2016084033 W CN2016084033 W CN 2016084033W WO 2016197834 A1 WO2016197834 A1 WO 2016197834A1
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Prior art keywords
hydraulic cylinder
hydraulic
lifting system
elevator
main
Prior art date
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PCT/CN2016/084033
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English (en)
Chinese (zh)
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姜永达
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/02—Control systems without regulation, i.e. without retroactive action
    • B66B1/06—Control systems without regulation, i.e. without retroactive action electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/04—Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2861—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using magnetic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means

Definitions

  • the invention relates to the field of elevators, and in particular to an electronically controlled hydraulic lifting system and an electronically controlled hydraulic lifting elevator.
  • Existing elevators are generally motor-powered vertical elevators, and elevator cars are provided in the elevator shaft for passengers or carrying cargo.
  • the existing elevators are generally provided with a top machine room for controlling the lifting of the elevator car, which is inconvenient to maintain and relatively high in production cost.
  • the invention provides an electronically controlled hydraulic lifting system and an electronically controlled hydraulic lifting elevator, which improves the above problems.
  • the present invention is implemented as follows:
  • An electronically controlled hydraulic lifting system comprising:
  • a hydraulic cylinder the interior of the hydraulic cylinder is provided with a vertical channel disposed along the elevator shaft, the hydraulic cylinder including at least one main hydraulic cylinder and at least one negative hydraulic cylinder, the top end of the main hydraulic cylinder The top ends of the negative hydraulic cylinders communicate with each other, and a bottom end of the main hydraulic cylinder and a bottom end of the negative hydraulic cylinder communicate with each other through a transition duct, and the main hydraulic cylinder is in the cavity a piston is slidably embedded, and a top end of the piston is connected to the elevator car by a steel cable;
  • a control mechanism comprising an electric control box, an oil pump, an electric motor and an electric control safety valve, wherein the electric motor is used to drive the oil pump, and the oil pump is respectively connected with the main hydraulic cylinder and the negative hydraulic cylinder
  • the motor and the electrically controlled safety valve are both electrically connected to the electrical control box.
  • Hydraulic oil can be injected into the cavity, and the lift of the piston can be controlled by controlling the direction of the hydraulic oil.
  • the elevator car descends.
  • the elevator car rises, and a complete hydraulic oil circulation is formed between the main hydraulic cylinder and the negative hydraulic cylinder.
  • the hydraulic oil and the negative hydraulic cylinder in the main hydraulic cylinder The flow of the hydraulic oil in the opposite direction is that when the hydraulic oil in the main hydraulic cylinder rises, the hydraulic oil in the negative hydraulic cylinder drops, and when the hydraulic oil in the main hydraulic cylinder drops, the hydraulic oil in the negative hydraulic cylinder rises.
  • the hydraulic oil in the hydraulic cylinder flows toward the control piston to rise and fall, and pulls the elevator car down or rises through the steel cable.
  • the control mechanism is used to control the flow of hydraulic oil in the hydraulic cylinder.
  • the electric control box drives the oil pump through the motor according to the floor setting.
  • the oil pump pulsates the hydraulic oil in the hydraulic cylinder, and the piston drives the elevator car to the appropriate position through the steel cable or the like.
  • the electric control box controls the motor to stop working, and the position of the elevator car is limited.
  • the electric control safety valve is an indispensable part of the hydraulic elevator. When an accident occurs, the elevator car can be stopped or reach the designated floor at any time to avoid the safety accident caused by the elevator failure, and effectively protect the personal property of the elevator user. Safety.
  • the transition pipe can be made of a stainless steel pipe or a plastic pipe or a rubber pipe. Of course, other high-strength ropes can be connected between the top end of the piston and the elevator car.
  • At least one of the pistons is provided with a strong magnetic block, and a plurality of outer sides of the main hydraulic cylinder corresponding to the piston with the strong magnetic block are provided with a plurality of positions for detecting the position of the strong magnetic block. a detector, the detector being electrically connected to the electrical control box, respectively.
  • the electric control box makes the detector of the set floor work, and the plurality of detectors respectively correspond to different floors.
  • the detector detects the strong magnetic block in the piston and starts to control the electric control box.
  • the hydraulic oil flow rate in the hydraulic cylinder is slowed down until the stop, the position of the piston is fixed, and the elevator car is stopped at the set floor, and the control mode is relatively simple and convenient.
  • the detector may be disposed outside of one of the main hydraulic cylinders or may be disposed outside of the two main hydraulic cylinders.
  • transition duct is provided with a flow path selection section, and the flow path selection section includes two pipelines arranged in parallel, one of the pipelines flows through the oil pump, and the other pipeline is provided with an electromagnetic control deceleration relief valve.
  • the electromagnetic control deceleration relief valve is electrically connected to the electric control box.
  • the flow channel selection section is arranged in the middle part of the transition duct.
  • the appropriate flow passage is selected in the flow passage selection section, that is, the hydraulic oil is first concentrated, then the flow passage is selected to be split, and finally, the flow is concentrated.
  • the piston When the elevator needs to rise, the piston must move downward. Due to the large mass of the elevator car, the oil pump must be operated and the hydraulic oil should be controlled to flow downward in the main hydraulic cylinder, and the piston moves downward under the push of the hydraulic oil. When the electromagnetic control deceleration relief valve is closed, the hydraulic oil cannot pass; when the elevator needs to descend, since the mass of the elevator car is far greater than the mass of the weight, the hydraulic oil in the hydraulic cylinder can be free.
  • the elevator car When flowing, the elevator car can pull the piston upwards. At this time, the energy consumption is very small. Only the electric control box needs to be opened by the electromagnetic control deceleration relief valve. The motor and the oil pump are not working, the operation is simple and convenient, and the elevator is in the elevator. During the descending process of the car, due to the existence of the electromagnetic control deceleration relief valve, the elevator car can be relatively smoothly lowered, and no free fall is formed, thereby ensuring the safety of the occupant.
  • the main hydraulic cylinders are at least two, the bottom ends of the hydraulic cylinders are respectively connected with the transition duct, and the end of the transition duct adjacent to the main hydraulic cylinder is provided with a diverting duct, and the control mechanism
  • a hydraulic automatic adjustment balance valve is provided, and the hydraulic automatic adjustment balance valve is disposed at a branch end of the flow dividing pipe and is used for adjusting oil pressure balance in the main hydraulic cylinder.
  • a plurality of main hydraulic cylinders share the mass of the elevator car, the tensile force of the steel cable is relatively reduced, and the service life is longer.
  • a plurality of pistons are respectively connected to different parts of the elevator car through the steel cables, and the elevator car is at It is smoother during the movement and is less prone to tilting.
  • the hydraulic oil in the transition duct is distributed to each main hydraulic cylinder through the hydraulic automatic adjustment balance valve, and the hydraulic pressure is automatically adjusted and balanced.
  • the valve controls the pressure in the hydraulic cylinder to be equal, and the plurality of main hydraulic cylinders work together, and some of the main hydraulic cylinders do not work.
  • the hydraulic cylinder is tubular, and the main hydraulic cylinder and the negative hydraulic cylinder are assembled by a plurality of short tubes, and the adjacent two short tubes are sealed by a telescopic hose connection.
  • the short tube is fixed in the elevator shaft through a fixing frame.
  • the hydraulic cylinder will have a certain deformation.
  • the short tube is elongated or shortened, due to the existence of the hose, there may be a certain gap between the adjacent two short tubes.
  • the elongation caused by the expansion of the short tube the floor holder is used to fix the position of the short tube, and the piston is smoothly slid in the hydraulic cylinder.
  • the hose can ensure that the adjacent two short tubes do not Oil leakage, and the height of the hydraulic cylinder can be adjusted as needed, which is suitable for buildings of different heights.
  • a top of the elevator shaft is provided with a hydraulic oil tank, and the main hydraulic cylinder and the negative hydraulic cylinder are both in communication with the hydraulic cylinder.
  • the hydraulic oil tank can be used as a relay station for storing hydraulic oil, so that the hydraulic cylinder is filled with hydraulic oil at all times to ensure smooth operation of the hydraulic cylinder.
  • an oil filter is disposed at one end of the transition duct adjacent to the negative hydraulic cylinder and one end of the transition duct adjacent to the main hydraulic cylinder.
  • the oil filter can filter impurities in the hydraulic oil, keep the hydraulic oil clean, and operate the electronically controlled hydraulic lifting system more smoothly.
  • a manual maintenance valve is disposed at one end of the transition duct adjacent to the main hydraulic cylinder.
  • the manual maintenance valve can close the electronically controlled hydraulic lifting system, stop it, and repair or replace the oil filter and other parts.
  • the motor is a forward and reverse motor
  • the oil pump is a high pressure bidirectional oil pump.
  • the electric control box controls the high-pressure two-way oil pump through the positive and negative motor to pump the hydraulic oil forward or reverse to realize different flow directions of the hydraulic oil.
  • An electronically controlled hydraulic lift comprising:
  • An elevator shaft the top of the elevator shaft is provided with a plurality of sets of fixed pulleys for embedding steel cables;
  • An elevator car and a weight the elevator car is disposed in the elevator shaft, and the elevator car and the weight are connected by a steel cable;
  • the hydraulic cylinder is vertically disposed in the elevator shaft.
  • the invention has the beneficial effects that the electronically controlled hydraulic lifting system provided by the invention does not need to be provided with a machine room on the top of the elevator shaft, and the maintenance is convenient, and the electronically controlled hydraulic lifting elevator with the electronically controlled hydraulic lifting system is installed.
  • the production cost is lower, the noise generated is less, the operation is smoother, the service life is longer than that of the motor, and the electronically controlled hydraulic elevator has a large bearing range and can bear more than 50 tons, which is suitable for use in large load-bearing work places.
  • FIG. 1 is a schematic diagram of an electronically controlled hydraulic elevator provided by an embodiment of the present invention.
  • Figure 2 is a partial enlarged view of Figure 1;
  • Figure 3 is a schematic view of the piston of Figure 1;
  • FIG. 4 is a schematic view of the detector of FIG. 1.
  • Existing elevators are generally motor-powered vertical elevators, and elevator cars are provided in the elevator shaft for passengers or carrying cargo.
  • the existing elevators are generally provided with a top machine room for controlling the lifting of the elevator car, which is inconvenient to maintain and relatively high in production cost.
  • the electronically controlled hydraulic lifting system provided by the invention does not need to be provided with a machine room at the top of the elevator shaft, and the maintenance is convenient, and the production cost of the electronically controlled hydraulic lifting elevator with the electronically controlled hydraulic lifting system is low, and the generated noise is less, running It is smoother and has a longer life than the motor.
  • the electronically controlled hydraulic elevator has a large bearing range and can bear more than 50 tons, which is suitable for large load-bearing work.
  • the existing hydraulic elevators are alternately graded, not practical, and are not suitable for high-rise use.
  • the invention breaks through the concept of hydraulics for high-rise design, and has a wide range of applications, which can be used in commercial residences, offices, luxury hotels. Various occasions such as sightseeing elevators and various types of factories, mines, and so on, greatly reduce production costs and maintenance costs. If used, it will occupy a large advantage.
  • FIG. 1 is a schematic view of an electronically controlled hydraulic elevator according to an embodiment of the present invention
  • FIG. 2 is a partially enlarged schematic view of FIG. 1
  • FIG. 3 is a schematic view of the piston of FIG. Figure 1-
  • an embodiment of the present invention provides an electronically controlled hydraulic elevator, including an elevator shaft 101, an elevator car 102, a weight 103, and an electronically controlled hydraulic lifting system.
  • the top of the elevator shaft 101 is provided with a plurality of groups.
  • the steel cable 104 is erected on the fixed pulley 105; the elevator car 102 is disposed in the elevator shaft 101, and the elevator car 102 and the weight 103 are connected by a steel cable 104.
  • the electronically controlled hydraulic lifting system comprises a hydraulic cylinder and a control mechanism, and the inside of the hydraulic cylinder is provided with a vertical passage along the elevator shaft 101, and the hydraulic cylinder includes at least one main hydraulic cylinder 106. And at least one negative hydraulic cylinder 107, the number of the main hydraulic cylinders 106 is preferably two, and the number of the negative hydraulic cylinders 107 is preferably one, and the top end of the main hydraulic cylinder 106 and the top end of the negative hydraulic cylinder 107 are mutually connected. The bottom end of the main hydraulic cylinder 106 and the bottom end of the negative hydraulic cylinder 107 communicate with each other through the transition duct 108.
  • the piston 109 is slidably embedded in the cavity of the main hydraulic cylinder 106, and the top end of the piston 109 and the elevator car are connected.
  • the compartments 102 are connected by a steel cable 104.
  • the electronically controlled hydraulic lifting system is not attached to the elevator, that is, the electronically controlled hydraulic lifting system can be separately existed or fabricated, and only needs to be installed in the elevator shaft for use, the elevator car 102, the elevator shaft, the weight 103, etc.
  • Components are not part of an electronically controlled hydraulic lifting system and are only used to illustrate the location of the components.
  • Hydraulic oil can be injected into the tunnel, and the lift of the piston 109 can be controlled by controlling the direction of the hydraulic oil.
  • the main hydraulic cylinder 106 and the negative oil pressure A complete hydraulic oil circulation is formed between the cylinders 107, and the hydraulic oil in the main hydraulic cylinder 106 is opposite to the flow of the hydraulic oil in the negative hydraulic cylinder 107, that is, when the hydraulic oil in the main hydraulic cylinder 106 rises, the negative oil
  • the hydraulic oil in the pressure cylinder 107 is lowered, and when the hydraulic oil in the main hydraulic cylinder 106 is lowered, the hydraulic oil in the negative hydraulic cylinder 107 rises; the hydraulic oil in the hydraulic cylinder flows toward the control piston 109 to rise and fall, and passes through the steel.
  • Cable 104 pulls elevator car 102 down or up.
  • the bottom end of the hydraulic cylinder is respectively connected with the transition duct 108, and the end of the transition duct 108 near the main hydraulic cylinder 106 is provided with a diverting duct 110, and the control mechanism includes a hydraulic automatic balance valve 111, and the hydraulic automatic balance is adjusted.
  • the valve 111 is disposed at the bifurcated end of the diverting duct 110 and serves to adjust the oil pressure balance in the main hydraulic cylinder 106.
  • the plurality of main hydraulic cylinders 106 share the mass of the elevator car 102, the tensile force of the steel cable 104 is relatively reduced, and the service life is longer.
  • the plurality of pistons 109 are respectively different from the elevator car 102 by the steel cables 104.
  • the elevator car 102 is more stable during the movement and is less prone to tilting.
  • the hydraulic oil in the transition duct 108 is distributed into the respective main hydraulic cylinders 106 through the hydraulic automatic adjustment balance valve 111, and the hydraulic automatic adjustment balance valve 111 controls the pressures in the hydraulic cylinders to be equal, and the plurality of main hydraulic cylinders 106 work together. There is no possibility that some of the main hydraulic cylinders 106 are not working.
  • the control mechanism includes an electric control box 112, an oil pump 113, a motor 114, and an electric control safety valve 115.
  • the motor 114 is used to drive the oil pump 113, and the oil pump 113 is connected to the main hydraulic cylinder 106 and the negative hydraulic cylinder 107, respectively.
  • the electric motor 114 and the electric control safety valve 115 are electrically connected to the electric control box 112.
  • the electric motor 114 is preferably a positive and negative electric motor.
  • the oil pump 113 is preferably a high pressure bidirectional oil pump.
  • the electric control box 112 controls the high pressure bidirectional oil pump 113 through the forward and reverse electric motor 114.
  • the hydraulic oil is twitched in the opposite direction to achieve different flow directions of the hydraulic oil.
  • the electric control box 112, the oil pump 113, and the motor 114 may be disposed at the bottom of the elevator car.
  • the control mechanism is used for controlling the flow of hydraulic oil in the hydraulic cylinder.
  • the electric control box 112 drives the oil pump 113 through the motor 114 according to the floor setting.
  • the oil pump 113 pulsates the hydraulic oil in the hydraulic cylinder, and the piston 109 drives the elevator car through the steel cable 104 or the like.
  • the electrical control box 112 controls the motor 114 to cease operation and the position of the elevator car 102 is defined.
  • the electric control safety valve 115 is an indispensable component of the hydraulic elevator.
  • the transition duct 108 may be a stainless steel tube or a plastic tube or a rubber tube or the like. Of course, other high-strength rope connections may be used between the top end of the piston 109 and the elevator car 102.
  • At least one piston 109 is provided with a strong magnetic block 116, preferably one piston 109 is provided with a strong magnetic block 116, and the remaining pistons 109 are not provided with a strong magnetic block 116.
  • a plurality of detectors 117 for detecting the position of the strong magnet block 116 are disposed outside the main hydraulic cylinder 106 corresponding to the piston 109 with the strong magnet block 116. The position of the detector 117 corresponds to the floor, and the detector 117 They are electrically connected to the electrical control box 112, respectively.
  • the set content can be realized by the elevator floor button, the electric control box 112 makes the detector 117 of the set floor work, and the plurality of detectors 117 respectively correspond to different floors, and when the piston 109 reaches the designated position, the detection is performed.
  • the 117 detects the strong magnet block 116 in the piston 109 and begins to control the electric control box 112 to slow down the flow rate of the hydraulic oil in the hydraulic cylinder until the stop, the position of the piston 109 is fixed, thereby causing the elevator car 102 to stop at the set Floor, control method is simple and convenient.
  • the detector 117 may be disposed outside one of the main hydraulic cylinders 106, or may be disposed outside the two main hydraulic cylinders 106, respectively.
  • the transition duct 108 is provided with a runner selection section 118, and the runner selection section 118 includes two ducts arranged in parallel, one of which flows through the oil pump 113 and the other duct
  • An electromagnetic control deceleration relief valve 119 is provided, and the electromagnetic control deceleration relief valve 119 is electrically connected to the electric control box 112.
  • the flow path selection section 118 is disposed in the intermediate portion of the transition duct 108. After the hydraulic oil enters the transition duct 108, a suitable flow passage is selected in the flow passage selection section 118, that is, the hydraulic oil first converges and then passes through the flow passage selection section 118. Divide and finally gather.
  • the piston 109 It must move downward. Due to the large mass of the elevator car 102, the oil pump 113 must be operated and the hydraulic oil is controlled to flow downward in the main hydraulic cylinder 106. The piston 109 is moved downward by the hydraulic oil.
  • the pipe of the electromagnetic control deceleration relief valve 119 is closed, and the hydraulic oil cannot pass; when the elevator needs to descend, since the mass of the elevator car 102 is far greater than the mass of the weight 103, the hydraulic oil in the hydraulic cylinder can be freely When flowing, the elevator car 102 can pull the piston 109 to move upwards. At this time, the energy consumption is very small, and only the electric control box 112 needs to be opened by the electromagnetic control deceleration relief valve 119, and the motor 114 and the oil pump 113 are not working, and the operation is performed.
  • the hydraulic cylinder is tubular, and the main hydraulic cylinder 106 and the negative hydraulic cylinder 107 are each formed by assembling a plurality of short tubes, and the adjacent two short tubes are sealed by a telescopic hose connection.
  • the short tube is fixed in the elevator shaft 101 by a fixing frame.
  • the hydraulic cylinder Due to the thermal expansion and contraction in different seasons and different occasions, the hydraulic cylinder will have a certain deformation.
  • the short tube is elongated or shortened, due to the existence of the hose, there may be a certain gap between the adjacent two short tubes.
  • the elongation caused by the expansion of the short tube the floor holder is used to fix the position of the short tube, and the piston 109 is smoothly slid in the hydraulic cylinder.
  • the hose can ensure no between the adjacent two short tubes. It will leak oil and can adjust the height of the hydraulic cylinder as needed, which is suitable for buildings of different heights.
  • the top of the elevator shaft 101 is provided with a hydraulic oil tank 121, and the main hydraulic cylinder 106
  • the negative oil pressure cylinder 107 is connected to the hydraulic cylinder, and the hydraulic oil tank 121 can be used as a relay station for storing hydraulic oil, so that the hydraulic cylinder is filled with hydraulic oil at all times to ensure smooth operation of the hydraulic cylinder.
  • an end of the transition duct 108 adjacent to the negative hydraulic cylinder 107 and an end of the transition duct 108 adjacent to the main hydraulic cylinder 106 are provided with an oil filter 122 which can filter impurities in the hydraulic oil and maintain The hydraulic oil is cleaned and the electronically controlled hydraulic lifting system runs smoothly.
  • one end of the transition duct 108 near the main hydraulic cylinder 106 is provided with a manual maintenance valve 123, and the number of the manual maintenance valves 123 is preferably three, which are respectively disposed in the two main hydraulic cylinders 106 and one negative oil.
  • the manual maintenance valve 123 can close the electronically controlled hydraulic lifting system to stop its operation and perform maintenance or replacement of the oil filter 122 and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Civil Engineering (AREA)

Abstract

L'invention concerne un système de levage hydraulique commandé électriquement et un ascenseur de levage hydraulique commandé électriquement. Le système de levage hydraulique commandé électriquement comprend un vérin hydraulique et un mécanisme de commande, un canal de cavité disposé verticalement le long d'une cage d'ascenseur (101) étant disposé à l'intérieur du vérin hydraulique, le vérin hydraulique comprenant au moins un vérin hydraulique à huile principal (106) et au moins un vérin hydraulique à huile auxiliaire (107), des extrémités supérieures du vérin hydraulique à huile principal (106) et du vérin hydraulique à huile auxiliaire (107) étant en communication mutuelle, des extrémités inférieures communiquant mutuellement par l'intermédiaire d'une conduite de transition (108), un piston (109) étant incorporé de manière coulissante dans la cavité de canal du vérin hydraulique à huile principal (106), et l'extrémité supérieure du piston (109) étant reliée à une cabine d'ascenseur (102) par l'intermédiaire d'un câble d'acier (104). Le système de levage hydraulique commandé électriquement n'a pas besoin d'une salle des machines disposée dans la partie supérieure de la cage d'ascenseur, de telle sorte que le système de levage hydraulique commandé électriquement est pratique à entretenir, et qu'un moteur électrique a une longue durée de vie et une plage de portée de charge relativement grande.
PCT/CN2016/084033 2015-06-08 2016-05-31 Système de levage hydraulique commandé électriquement et ascenseur de levage hydraulique commandé électriquement Ceased WO2016197834A1 (fr)

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CN201510310243.XA CN104843550B (zh) 2015-06-08 2015-06-08 一种电控液压升降系统及电控液压升降电梯
CN201510310243.X 2015-06-08

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WO2016197834A1 true WO2016197834A1 (fr) 2016-12-15

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Publication number Priority date Publication date Assignee Title
CN104843550B (zh) * 2015-06-08 2016-09-21 姜永达 一种电控液压升降系统及电控液压升降电梯
CN106473474B (zh) * 2016-12-16 2018-09-07 杨光明 一种企业办公文件放置框
EP3814263B1 (fr) * 2018-06-27 2024-11-13 Inventio Ag Procédé et dispositif de commande d'ascenseur pour détecter une défaillance dans un ascenseur
CN116395512B (zh) * 2023-03-28 2024-01-12 宁波汉科思液压有限公司 一种液压系统及控制方法

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