CN106144855A - The method and apparatus that a kind of tractive driving apparatus of load balance and energy regenerating utilize - Google Patents

The method and apparatus that a kind of tractive driving apparatus of load balance and energy regenerating utilize Download PDF

Info

Publication number
CN106144855A
CN106144855A CN201610686773.9A CN201610686773A CN106144855A CN 106144855 A CN106144855 A CN 106144855A CN 201610686773 A CN201610686773 A CN 201610686773A CN 106144855 A CN106144855 A CN 106144855A
Authority
CN
China
Prior art keywords
pipeline
valve
load
directional control
solenoid directional
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201610686773.9A
Other languages
Chinese (zh)
Other versions
CN106144855B (en
Inventor
莫虎
路长志
程凡
程一凡
张俊
马幸福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha Zhenzhi Elevator Co.,Ltd.
Original Assignee
Hunan Electrical College of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Electrical College of Technology filed Critical Hunan Electrical College of Technology
Priority to CN201610686773.9A priority Critical patent/CN106144855B/en
Publication of CN106144855A publication Critical patent/CN106144855A/en
Application granted granted Critical
Publication of CN106144855B publication Critical patent/CN106144855B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04Driving gear ; Details thereof, e.g. seals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04Driving gear ; Details thereof, e.g. seals
    • B66B11/0423Driving gear ; Details thereof, e.g. seals actuated pneumatically or hydraulically
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02Installations or systems with accumulators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14Energy-recuperation means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Elevator Control (AREA)

Abstract

The invention provides a kind of tractive driving apparatus of load balance and the method and apparatus of energy regenerating utilization, the device that the tractive driving apparatus of load balance of the present invention and energy regenerating utilize includes two-way pump, solenoid directional control valve, controller and LOAD CELLS;The Single port of described two-way pump is connected with fuel tank by the first pipeline, the another port of two-way pump is connected with the fuel feed hole of solenoid directional control valve by second pipe, first oil outlet of solenoid directional control valve is connected with fuel tank by the 3rd pipeline, second oil outlet of described solenoid directional control valve passes through the 4th pipeline and the 3rd pipeline communication, accumulator and the 4th pipeline are connected by the 5th pipeline, 5th pipeline is provided with solenoid-operated proportional air relief valve, and LOAD CELLS, solenoid-operated proportional air relief valve and solenoid directional control valve are connected with controller respectively.The present invention realize load with counterweight dynamic equilibrium, beneficially towed elevator, open, brake and operate steadily;Realize energy regenerating to utilize, beneficially elevator economy, Effec-tive Function.

Description

The method and apparatus that a kind of tractive driving apparatus of load balance and energy regenerating utilize
Technical field
The invention belongs to towed elevator technical field, be specifically related to a kind of tractive driving apparatus of load balance and energy returns Receive the method and apparatus utilized.
Background technology
Towed elevator traction machine two ends connect car and counterweight respectively, rely on traction sheave to enter with the frictional force that steel wire rope produces Row transmission.Prior art all uses fixing counterweight to balance with car, can balance the load of traction sheave two ends to a certain extent, and subtract Few excessive power drain.Towed elevator coefficient of balance is generally 0.4 ~ 0.5, and preferable operating mode is semi-load, and now traction sheave two ends are born Carry approximately equal, traction machine load minimum.During actually used, the passenger load of car end is random, and towed elevator is past Toward not being operation under optimum condition.During such as car without passenger's empty down, counterweight overweights car, and traction load on host computers is maximum, Externally acting.And car without passenger unloaded up time, counterweight pulls traction main frame, makes motor present to electrical network as electromotor Electricity, but at present for, feed voltage and frequency do not reach grid requirements, disappear feedback current only with high-power resistance Consumption, wastes the energy.
Industry forward position has following several technology to attempt solving traction equilibrium problem: load weight scene is adjustable, according to sedan-chair Railway carriage or compartment real-time load, Field adjustment load weight, it is mainly used in the less demanding occasion of the timeliness such as Cargo Lift;Fluid is adjustable, at electricity Each arrangement one water tank in ladder machine room and counterweight frame, with pliable and tough watertightness pipeline connection between two casees, is equipped with electricity in water route simultaneously Magnet valve and water pump, automatically control current to realize the energy-conservation dragging of elevator balanced state with traction system balanced signal;Additional drag Formula, utilizes generation cage operation resistance between car, counterweight and the body of wall of installation rubber, changes normal pressure size, thus change The size of frictional force, it is achieved two ends load balance;Additional torque formula, counterweight is made up of static counterweight and dynamic counterweight two parts, Pouring weight by counterweight support and is formed by static counterweight, and dynamic counterweight is made up of weight generator and weight controller, static right Heavy amount is counterweight deadweight, and it is conducted oneself with dignity equal to car, and the weight of dynamic counterweight is that weight generator is at weight controller Controlling the lower weight being produced equivalence, it is equal to the load weight in car.Above technology can be effectively realized load balance, Reduce the starting and braking impact of elevator, but be required to increase extra energy input, it is impossible to carry out energy regenerating utilization simultaneously, with Sample has the defect of the waste energy.
Following several technology are had to attempt solving the problem that energy regenerating utilizes: braking resistor to be located in couveuse, its The heat gone out is collected in couveuse, and recycling stirling generator converts heat into electric energy and recycles;Traction machine is in During generating operation mode, reclaim produced electric energy, be then delivered to accumulator by controller, when traction machine is in electronic operating mode, Regulate and carry the electric energy exported by controller, to the converter of elevator;When traction machine is in generating operation mode, reclaims and produced Electric energy, be then delivered to super capacitor by controller, when traction machine is in electronic operating mode, regulates and carry and pass through controller The electric energy of output, to the converter of elevator, but super capacitor is shorter for service life, and the voltage of feedback will pollute electrical network.
Summary of the invention
The present invention provides a kind of and is capable of load balance and the tractive driving equipment that can recycle energy The method and apparatus that load balance and energy regenerating utilize.
The technical solution used in the present invention is: the device that a kind of tractive driving apparatus of load balance and energy regenerating utilize, Including two-way pump, solenoid directional control valve, accumulator, electricity proportional pressure-reducing valve, overflow valve, check valve, controller and LOAD CELLS;Institute The Single port of the two-way pump stated is connected with fuel tank by the first pipeline, and the another port of two-way pump is by second pipe with fuel tank even Logical, second pipe is provided with check valve, and check valve only allows liquid to flow to two-way pump from fuel tank;The fuel feed hole of solenoid directional control valve with Second pipe connects, and the first oil outlet of solenoid directional control valve is connected with fuel tank by the 3rd pipeline, and the 3rd pipeline is provided with unidirectional Valve, accumulator and overflow valve, check valve is between solenoid directional control valve and accumulator;The second of described solenoid directional control valve is fuel-displaced The 4th pipeline and the 3rd pipeline communication are passed through in hole, and the 4th pipeline is provided with check valve, accumulator and the 4th pipeline by the 5th pipe Road connects, and the 5th pipeline is provided with solenoid-operated proportional air relief valve, and LOAD CELLS, solenoid-operated proportional air relief valve and solenoid directional control valve are respectively It is connected with controller.
In the device that above-mentioned tractive driving apparatus of load balance and energy regenerating utilize, described the 3rd pipeline and second Pipeline communication, connectivity part is between fuel tank and check valve.
In the device that above-mentioned tractive driving apparatus of load balance and energy regenerating utilize, the overflow valve position on the 3rd pipeline Between accumulator and fuel tank, the connectivity part of the 4th pipeline and the 3rd pipeline is between accumulator and overflow valve.
The tractive driving equipment of a kind of device utilizing above-mentioned tractive driving apparatus of load balance and energy regenerating to utilize is born Carry balance and the method for energy regenerating utilization, comprise the steps:
1) two-way pump is connected with traction machine;Bearing sensor is arranged on car;
2) when in car passenger less up time or when in car passenger more descending time, controller receive LOAD CELLS load Signal and elevator run signal, it is judged that backward solenoid directional control valve output commutation signal, solenoid directional control valve obtain electric after, control pressure current Body flow direction so that it is can only be flowed to through the 3rd pipeline flow-direction accumulator by two-way pump end;Accumulator stores by choke valve Pressure fluid, it is achieved the recovery of energy;
When in car passenger less descending time or when in car passenger more up time, controller receive LOAD CELLS load letter Number and elevator run signal, it is judged that backward solenoid directional control valve, solenoid-operated proportional air relief valve output control signal;Solenoid-operated proportional air relief valve Be controlled by the controller output and the pressure fluid loading proportional force value;Solenoid directional control valve is controlled by the controller, and makes pressure current Body is flowed to two-way pump by solenoid-operated proportional air relief valve;Two-way pump is stressed fluid drives, is in motor operating conditions, together drives with traction machine Dynamic load, reduces the load of traction machine, it is achieved the recycling recovered energy and traction machine two ends load balance relatively.
Compared with prior art, the present invention has a following Advantageous Effects:
1) present invention can realize the recycling of tractive driving energy, if being applied to tracking-driven elevator, can reduce its energy consumption, Calculating with existing elevator recoverable amount, economic effect is obvious.
2) present invention can balance the load of traction machine two ends, on the premise of traction capacity is identical, improves the volume of elevator Determine loading capacity;Reduce tractive driving cell capability to reduce production cost;Reduce traction frictional force demand to alleviate car deadweight And counterweight mass;Reduce car deadweight and counterweight inertia load, improve fair acceleration and reduce natural frequency, beneficially elevator Stable operation.
Accompanying drawing explanation
The towed elevator load balance of Fig. 1 present invention and the structure chart of energy recycling device.
Installation knot on elevator when Fig. 2 is towed elevator load balance and the energy recycling device use of the present invention Composition.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
As shown in Figure 1, 2, the device that the tractive driving apparatus of load balance of the present invention and energy regenerating utilize, including two-way Pump 1, solenoid directional control valve 5, accumulator 2, electricity proportional pressure-reducing valve 4, overflow valve 6, controller 9 and LOAD CELLS 10;Described is double Being connected with fuel tank 8 by the first pipeline 81 to the Single port of pump 1, another port is connected with fuel tank 8 by second pipe 82, and second Pipeline 82 is provided with check valve 7, and 7, check valve allows liquid to flow to two-way pump 1 from fuel tank 8.The fuel feed hole of solenoid directional control valve 5 with Second pipe 82 connects, and the first oil outlet of solenoid directional control valve 5 is connected with second pipe 82 by the 3rd pipeline 83, the 3rd pipeline 83 and the junction of second pipe 82 between check valve 7 and fuel tank 8.3rd pipeline 83 is provided with check valve 71, accumulator 2 With overflow valve 6, check valve 71 is between solenoid directional control valve 5 and accumulator 2.Second oil outlet of described solenoid directional control valve 5 Connected with the 3rd pipeline 83 by the 4th pipeline 84, at the 4th pipeline 84 and the 3rd pipeline 83 company, be positioned at overflow valve 6 and accumulator 2 Between;4th pipeline is provided with check valve 72.Accumulator 2 and the 4th pipeline 84 are connected by the 5th pipeline 85, and junction is positioned at Between solenoid directional control valve 5 and check valve 72;5th pipeline 85 is provided with solenoid-operated proportional air relief valve 4.LOAD CELLS 10, electromagnetism ratio Example air relief valve 4 and solenoid directional control valve 5 are connected with controller 9 respectively.
The method that a kind of tractive driving apparatus of load balance and energy regenerating utilize, including following process:
1) traction sheave of two-way pump 1 with traction machine 11 is connected, and makes two-way pump 1 coaxial with traction sheave;By bearing sensor 10 are arranged on car 13.
2) when in car 13 passenger less up time, the load of counterweight 14 is more than the load of car 13;Or when in car 13 Passenger more descending time, the load of counterweight 14 is less than the load of car 13.The load of traction sheave two ends is made a concerted effort consistent with traffic direction, Can externally do work or recover energy.Specific implementation method is as follows: two-way pump 1 is coaxial with traction sheave, and equidirectional rotation, by negative Carry driving of making a concerted effort and pump out pressure fluid, produce the resistance contrary with loading resultant direction, the effect at balance traction sheave two ends simultaneously Power.Controller 9 receives LOAD CELLS 10 load signal and elevator run signal, it is judged that the output commutation of backward solenoid directional control valve 5 Signal so that it is be in left valve position.Solenoid directional control valve 5 electric after, control pressurised fluid flow direction so that it is can only be by two-way pump 1 Accumulator 2 is flowed to by the 3rd pipeline 83.Accumulator 2 stores the pressure fluid by choke valve 3, it is achieved the recovery of energy.
When in car 13 passenger less descending time, the load of counterweight 14 is more than the load of car 13;Or as passenger in car More up time, counterweight 14 load is less than the load F of car 13z< Fj.Traction machine 11 two ends load resultant moment and traffic direction phase Instead, outside offer energy or the recycling recovered energy are provided.Specific implementation method is as follows: the energy of recycling is by accumulator 2 Interior pressure fluid provides, and flows to solenoid-operated proportional air relief valve 4 by choke valve 3.Controller 9 receives the load of LOAD CELLS 10 Signal and elevator run signal, it is judged that backward solenoid directional control valve 5, solenoid-operated proportional air relief valve 4 export control signal.Solenoid-operated proportional subtracts Pressure valve 4 controlled device 9 controls output and loads the pressure fluid of proportional force value.At solenoid directional control valve 5 controlled device 9 control In right valve position, pressure fluid is made to be flowed to two-way pump 1 by solenoid-operated proportional air relief valve 4.Two-way pump 1 is stressed fluid drives, is in horse Reach operating mode, together drive load with traction machine 11, relatively reduce the load of traction machine 11, it is achieved the recycling that recovers energy and draging Draw machine 11 two ends load balance.
When the energy that device of the present invention reclaims is much larger than the energy recycled, in FIG, fluid pressure in accumulator 2 Power reaches higher limit, and unnecessary fluid can flow back to fuel tank 8 by overflow valve 6 and with protection system and ensure that tractive driving equipment is normal Run.During the energy deficiency that apparatus of the present invention reclaim, in fuel tank 8, it is pressed into fluid system through atmospheric pressure, is pressed into through check valve 7 double To pump 1, it is ensured that device and tractive driving equipment that the tractive driving apparatus of load balance of the present invention and energy regenerating utilize are normal Run.
It is last it is noted that above example is merely to illustrate the present invention and unrestricted technical side described in the invention Case;Therefore, although this specification with reference to above-described embodiment to present invention has been detailed description, but, this area general Logical it will be appreciated by the skilled person that still the present invention can be modified or equivalent;And all are without departing from the essence of the present invention God and the technical scheme of scope and improvement thereof, it all should be contained in scope of the presently claimed invention.

Claims (4)

1. the device that tractive driving apparatus of load balance and energy regenerating utilize, is characterized in that: include that two-way pump, electromagnetism change To valve, accumulator, electricity proportional pressure-reducing valve, overflow valve, controller and LOAD CELLS;The Single port of described two-way pump is by the One pipeline connects with fuel tank, and the another port of two-way pump is connected with fuel tank by second pipe, and second pipe is provided with check valve, Check valve only allows liquid to flow to two-way pump from fuel tank;The fuel feed hole of solenoid directional control valve connects with second pipe, solenoid directional control valve The first oil outlet connected with fuel tank by the 3rd pipeline, the 3rd pipeline is provided with check valve, accumulator and overflow valve, check valve Between solenoid directional control valve and accumulator;Second oil outlet of described solenoid directional control valve passes through the 4th pipeline and the 3rd pipeline Connection, the 4th pipeline is provided with check valve, accumulator and the 4th pipeline and is connected by the 5th pipeline, and the 5th pipeline is provided with electromagnetism Proportional pressure-reducing valve, LOAD CELLS, solenoid-operated proportional air relief valve and solenoid directional control valve are connected with controller respectively.
In the device that tractive driving apparatus of load the most according to claim 1 balance and energy regenerating utilize, it is characterized in that: The 3rd described pipeline connects with second pipe, and connectivity part is between fuel tank and check valve.
In the device that tractive driving apparatus of load the most according to claim 1 balance and energy regenerating utilize, it is characterized in that: Overflow valve on 3rd pipeline between accumulator and fuel tank, the connectivity part of the 4th pipeline and the 3rd pipeline be positioned at accumulator and Between overflow valve.
4. one kind utilizes in claim 1-3 described in any claim tractive driving apparatus of load balance and energy regenerating profit Device tractive driving apparatus of load balance and energy regenerating utilize method, comprise the steps:
1) two-way pump is connected with traction machine;Bearing sensor is arranged on car;
2) when in car passenger less up time or when in car passenger more descending time, controller receive LOAD CELLS load Signal and elevator run signal, it is judged that backward solenoid directional control valve output commutation signal, solenoid directional control valve obtain electric after, control pressure current Body flow direction so that it is can only be flowed to through the 3rd pipeline flow-direction accumulator by two-way pump end;Accumulator stores by choke valve Pressure fluid, it is achieved the recovery of energy;
When in car passenger less descending time or when in car passenger more up time, controller receive LOAD CELLS load letter Number and elevator run signal, it is judged that backward solenoid directional control valve, solenoid-operated proportional air relief valve output control signal;Solenoid-operated proportional air relief valve Be controlled by the controller output and the pressure fluid loading proportional force value;Solenoid directional control valve is controlled by the controller, and makes pressure current Body is flowed to two-way pump by solenoid-operated proportional air relief valve;Two-way pump is stressed fluid drives, is in motor operating conditions, together drives with traction machine Dynamic load, reduces the load of traction machine, it is achieved the recycling recovered energy and traction machine two ends load balance relatively.
CN201610686773.9A 2016-08-19 2016-08-19 The method and apparatus that a kind of tractive driving apparatus of load balance and energy regenerating utilize Active CN106144855B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610686773.9A CN106144855B (en) 2016-08-19 2016-08-19 The method and apparatus that a kind of tractive driving apparatus of load balance and energy regenerating utilize

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610686773.9A CN106144855B (en) 2016-08-19 2016-08-19 The method and apparatus that a kind of tractive driving apparatus of load balance and energy regenerating utilize

Publications (2)

Publication Number Publication Date
CN106144855A true CN106144855A (en) 2016-11-23
CN106144855B CN106144855B (en) 2018-10-23

Family

ID=57330517

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610686773.9A Active CN106144855B (en) 2016-08-19 2016-08-19 The method and apparatus that a kind of tractive driving apparatus of load balance and energy regenerating utilize

Country Status (1)

Country Link
CN (1) CN106144855B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI628366B (en) * 2017-10-18 2018-07-01 國立虎尾科技大學 Brake method for closing hydraulic brake equipment
TWI628365B (en) * 2017-10-18 2018-07-01 國立虎尾科技大學 Closed hydraulic brake equipment
CN111173798A (en) * 2020-02-06 2020-05-19 杜杰 Hydraulic power system for variable counterweight and lifting system with hydraulic power system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0771409A (en) * 1993-08-30 1995-03-17 Komatsu Zenoah Co Hydraulic circuit for elevator device
CN1112785A (en) * 1993-06-01 1995-11-29 科恩股份公司 Procedure for operating an elevator and elevator machinery
CN1439591A (en) * 2003-03-26 2003-09-03 浙江大学 Hydraulic lift energy-saving control system with hydraulic transformer
CN1987124A (en) * 2006-12-14 2007-06-27 浙江大学 Energy saving hydraulic lifting system of variable hydraulic counterweight
CN103241619A (en) * 2013-05-22 2013-08-14 太原理工大学 Energy saving elevator and operation control method thereof
CN105179343A (en) * 2015-10-27 2015-12-23 中国矿业大学 Multi-cylinder synchronous energy-saving efficient hydraulic lifting system and method
CN205973385U (en) * 2016-08-19 2017-02-22 湖南电气职业技术学院 Tow drive device load balancing and energy recovery and conversion's device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1112785A (en) * 1993-06-01 1995-11-29 科恩股份公司 Procedure for operating an elevator and elevator machinery
JPH0771409A (en) * 1993-08-30 1995-03-17 Komatsu Zenoah Co Hydraulic circuit for elevator device
CN1439591A (en) * 2003-03-26 2003-09-03 浙江大学 Hydraulic lift energy-saving control system with hydraulic transformer
CN1987124A (en) * 2006-12-14 2007-06-27 浙江大学 Energy saving hydraulic lifting system of variable hydraulic counterweight
CN103241619A (en) * 2013-05-22 2013-08-14 太原理工大学 Energy saving elevator and operation control method thereof
CN105179343A (en) * 2015-10-27 2015-12-23 中国矿业大学 Multi-cylinder synchronous energy-saving efficient hydraulic lifting system and method
CN205973385U (en) * 2016-08-19 2017-02-22 湖南电气职业技术学院 Tow drive device load balancing and energy recovery and conversion's device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI628366B (en) * 2017-10-18 2018-07-01 國立虎尾科技大學 Brake method for closing hydraulic brake equipment
TWI628365B (en) * 2017-10-18 2018-07-01 國立虎尾科技大學 Closed hydraulic brake equipment
CN111173798A (en) * 2020-02-06 2020-05-19 杜杰 Hydraulic power system for variable counterweight and lifting system with hydraulic power system

Also Published As

Publication number Publication date
CN106144855B (en) 2018-10-23

Similar Documents

Publication Publication Date Title
CN203833526U (en) Energy recycling system for main winch descending of rotary drilling rig
CN106144855A (en) The method and apparatus that a kind of tractive driving apparatus of load balance and energy regenerating utilize
CN201961933U (en) Elevator capable of generating power by utilizing renewable energy sources
CN104709802B (en) A kind of adopt ship lock water-delivery principle to promote elevator and progress control method
CN106678098A (en) Crane hydraulic control system and crane
CN105129584A (en) Counter-weight weight adjustable energy-saving freight elevator
CN104890523B (en) Ems
CN101870270A (en) Mine self-discharging vehicle carriage floating descending control device
CN106080216A (en) A kind of brake control method based on hybrid vehicle Brake energy recovery
CN206126513U (en) Device that traction elevator dynamic balance , energy -conservation and reduction dead weight required
CN108439238A (en) A kind of electro-hydraulic double dynamical deep sea equipment winch of water-cooled
CN205973385U (en) Tow drive device load balancing and energy recovery and conversion's device
JP5654705B1 (en) Flywheel engine
CN107082073B (en) A kind of descending energy regenerating for electro-hydraulic railcar and slow system
CN203717551U (en) Power unit of pallet truck
CN113264433A (en) Load balancing energy balancing elevator
CN108975235A (en) Lifting device dynamical system and its control method
CN204643488U (en) A kind of elevator adopting ship lock water-delivery principle to promote
CN103183296A (en) Pump motor cataclinal power generation control system
CN205099161U (en) Energy -concerving and environment -protective elevator
CN206273647U (en) A kind of plug-in hybrid chassis
CN203173769U (en) Pump motor unidirectional descending generation control system
CN105776014B (en) A kind of pneumatic monorail crane
CN102381594A (en) Energy saving device for elevators
CN206142632U (en) High -efficient speed -raising elevator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20230625

Address after: No. 8, Xincheng Community, Yutan Subdistrict, Ningxiang, Changsha City, Hunan Province 410699

Patentee after: Changsha Zhenzhi Elevator Co.,Ltd.

Address before: 411101 No. 2, Tanxia Road, Yuetang District, Xiangtan, Hunan Province

Patentee before: HUNAN ELECTRICAL College OF TECHNOLOGY

TR01 Transfer of patent right