CN200974729Y - Counter weight power adjustable energy-saving elevator - Google Patents

Counter weight power adjustable energy-saving elevator Download PDF

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Publication number
CN200974729Y
CN200974729Y CN 200620154174 CN200620154174U CN200974729Y CN 200974729 Y CN200974729 Y CN 200974729Y CN 200620154174 CN200620154174 CN 200620154174 CN 200620154174 U CN200620154174 U CN 200620154174U CN 200974729 Y CN200974729 Y CN 200974729Y
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China
Prior art keywords
retaining
power
counterweight
countershaft
energy
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Expired - Fee Related
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CN 200620154174
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Chinese (zh)
Inventor
李旻
黄东海
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to CN 200620154174 priority Critical patent/CN200974729Y/en
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Abstract

The utility model provides an energy-saving elevator with adjustable balance weight and adjustable power, which comprises a motor, a carcase and a balance weight. The motor is connected with the carcase and the balance weight by a hoist transmission device. Automatic speed changing device is arranged between the hoist transmission device and the balance weight, which comprises computer control device, hydraulic control device and mechanical transmission. The hoist transmission device, gearshift device of the mechanical transmission and the balance weight are connected together in turn. The shift device has a signal connection with the computer control device, which has signal connections with the motor, the carcase, and the hydraulic control device. The utility model improves the overall structure of the elevator and reduces the power consumption of the motor. But the cost of designation and production are not increased too much, which can bring economical and social benefits.

Description

A kind of energy-saving lift with adjustable counterweight power
Technical field
The utility model relates to cage lifter equipment, relates in particular to a kind of energy-saving lift with adjustable counterweight power.
Background technology
The energy consumption of elevator accounts for 3%～7% of building total energy consumption greatly, and the energy-conservation of elevator should be considered from two aspects of transformation emphasis of the apolegamy of new ladder, old ladder.In recent years, the energy saving technology of having implemented elevator has: (1) active energy feedback device.Elevator will economize on electricity, and core is to be in the electrical usage of the electrical motor output of braking mode.The electric energy loopback that the effect of active energy feedback device can be stored in glancing impact in the electric capacity is exactly effectively used for other consumer of periphery to AC network.Be applicable to that all (import, homemade) alternating current-direct currents drag the frequency-changing elevator of pattern.(2) through-coupling.Traction sheave is directly installed on the rotor of motor, adopt through-coupling, there is not power transmission loss, efficiency far is higher than geared machine in the past, compare with the same specification elevator, about synthesis energy saving 30%, in addition owing to cancelled intermediate link such as worm and gear, handling labor such as removed that lubricating oil in the similar reduction case need regularly replace from, the noise reduction reaches 10 decibels approximately, save the maintenance human cost, mounting means all adopts no machine room (towing machine is installed in the elevator hoistways top) to reduce civil engineering costs.(3) elevator group controlling.Multiple lift control system can generate the operational mode of power saving the most, and many elevators in the control building make their division of labor clear and definite, arrive suitable position at reasonable time, make things convenient for about the passenger, have reduced elevator startup, number of run again.(4) Direct Torque Control and vector controlled.
China is the country of an energy scarcity, the rapid economic development in more than 20 year particularly, make energy resource supply nervous more, now, country advocates and implements a scientific outlook on development, set up conservation-minded society, social environment and economic environment all objectively requiring all trades and professions that product and technology are improved innovation, cut down the consumption of energy.
China has become maximum in the world elevator market at present, elevator is one of present national power consumption rich and influential family, need from the national economic development and construction, the development energy-conserving elevator has been the most urgent task, and the Chinese huge elevator market and the application present situation of energy-conserving elevator will make energy saving effect considerable.
Existing now elevator (removing staircase) all is provided with counterweight, and the counterweight of using as balance is opposite with the service direction of car, and its effect is a part of potential variation amount that is used to compensate cab and people, plays energy-conservation effect, but this mode and imperfection.Motor has two kinds of running statees in running process of elevator, electric motor state and electrical generator state.Under some elevator load situation, for example the car zero load is descending or car is fully loaded up, and towing machine need overcome certain resistance pulling counterweight or car, and electrical motor is drawn electric energy from electrical network (control housing), is in electric motor state.And under the other condition of loading, for example the car zero load is up or car is fully loaded descending, then there are overbalance in counterweight and car, because the up naturally or fully loaded car of the unloaded car of action of gravity is descending naturally, electrical motor need not to provide power, be in the electrical generator state, to control housing feedback electric energy.
Cab rise or descend certain apart from the time, cab and counterweight respectively have certain opposite potential variation amount.And the total weight of cab is (number can change) that changes, so even cab displaced phase is same, its potential variation amount also changes.When the potential variation amount of cab big (little), the potential variation amount of counterweight also should obtain big (little) some, to reach best energy-saving effect.But for existing elevator, when cab had certain displacement, the variable quantity of counterweight potential energy but was changeless.Counterweight fails farthest to compensate cab potential variation amount, or overcompensation, and therefore existing elevator can not obtain satisfied energy-saving effect.
Summary of the invention
The utility model provides a kind of and has controlled counterweight potential variation amount, improved the unitary construction design of elevator device, the power consumption that reduces motor, the energy-saving lift with adjustable counterweight power of energy savings in order to overcome the deficiency that above prior art exists.
The purpose of this utility model realizes by following technical scheme: a kind of energy-saving lift with adjustable counterweight power, comprise motor, cab, counterweight, described motor is connected respectively with cab, counterweight by the towing machine transmission device, be provided with automatic shift device between described towing machine transmission device and the counterweight, it is connected to form successively by microprocessor control system, hydraulic control system, mechanical transmission; Speed-change gear, the counterweight of described towing machine transmission device, mechanical transmission drive connection successively, the gearshift actuating unit of mechanical transmission is connected with described hydraulic control system signal, and described microprocessor control system divides level signal to be connected with motor, cab, hydraulic control system.
Described mechanical transmission is the wheeled mechanical transmission of dead axle.
The speed-change gear of the wheeled mechanical transmission of described dead axle comprises input shaft, output shaft, first countershaft, second countershaft, output gear and one～four retaining gear cluster, and its gearshift actuating unit comprises first drg, second drg and one～four retaining power-transfer clutch; Described towing machine transmission device is connected with input shaft, and output shaft is connected with counterweight;
First drg, a retaining power-transfer clutch are installed in the input shaft two ends respectively, four retaining power-transfer clutchs are installed in the input shaft middle part, three retaining driving gears are installed on first drg, four input shafts that keep off between the power-transfer clutchs, four retaining driving gears are installed on the sleeve of four retaining power-transfer clutchs, and a retaining driving gear is installed on the sleeve of a retaining power-transfer clutch;
Output gear is installed on the output shaft, and output gear is by being installed in first intermediate gear drives, first countershaft of first countershaft, one end, and the other end of first countershaft is equipped with second drg; Three retaining power-transfer clutchs are installed on first countershaft of the first intermediate gear inboard, and three retaining driven gears are installed on the sleeve of three retaining power-transfer clutchs; Two retainings, four retainings, a retaining driven gear are installed on three first countershafts that keep off between driven gears, second drg successively;
Three retaining driven gears are by being installed in second intermediate gear drives, second countershaft of second countershaft, one end, and two retaining power-transfer clutchs are installed in the second countershaft other end, and two retaining driving gears are installed on the sleeve of two retaining power-transfer clutchs.
The described control system of surging comprises Hydraulic Pump, pressure-gradient control valve, solenoid directional control valve, described Hydraulic Pump is connected with the pressure-gradient control valve pipeline, a plurality of solenoid directional control valves are connected with pressure-gradient control valve, gearshift actuating unit pipeline, and a plurality of solenoid directional control valves divide level signal to be connected with microprocessor control system.
Described microprocessor control system comprises micro controller system, signal interface circuit, driving amplifying circuit, the control unit of described micro controller system divides level signal to be connected by each signal interface circuit with electric life controller, sensor, master cock, divides level signal to be connected with each solenoid directional control valve respectively by each driving circuit.
Described sensor comprises cab weight sensor, cab speed sensor, cab acceleration pick-up, and it is installed on the cab.Also can need to install the sensor of gathering other parameters by control.
The theoretical analysis that the utility model is dealt with problems is as follows:
When elevator was finished a complete uphill process, supposing the system efficient was 100%, and then the electric energy of electrical consumption is for (when using active energy feedback device simultaneously, energy-saving effect can be better, can be converted into electric energy to a part of potential energy of elevator device, transfers to electrical network.)
The cab uphill process:
Accelerator: W a=G 1* H A1-G 2* H A2+ E K
Process: W at the uniform velocity b=G 1* H B1-G 2* H B2
Moderating process: W c=G 1* H C1-G 2* H C2-E K
Cab decline process:
Accelerator: W a=G 2* H A2-G 1* H A1+ E K
Process: W at the uniform velocity b=G 2* H A2-G 1* H A1
Moderating process: W c=G 2* H A2-G 1* H A1-E K
Wherein: G 1Be cab and people's gravity;
G 2Be counterweight gravity;
E KBe the kinetic energy change amount;
H A1, H B1, H C1Be respectively cab quicken, at the uniform velocity, the distance that moves when slowing down;
H A2, H B2, H C2Be respectively counterweight quicken, at the uniform velocity, the distance that moves when slowing down.
W a, W b, W cMight be for negative, represent that elevator is in braking mode when them when negative, energy feedback device is to the electrical network transmission of electric energy.The aforementioned calculation formula can be reduced to:
The cab uphill process:
W＝W a+W b+W c＝G 1H 1-G 2H 2
Cab decline process:
W＝W a+W b+W c＝G 2H 2-G 1H 1
(wherein: H 1=H A1+ H B1+ H C1H 2=H A2+ H B2+ H C2)
As seen, when counterweight is constant, regulate H 2, i.e. the power of scalable counterweight.When the cab changes in weight, choose suitable G like this 2* H 2, just can have:
(W a+ W b+ W c)≤0 (motor is to the electrical network transmission of electric energy)
By following formula as can be known, the elevator of this moment has become a step electrical generator, is transformed into the generation electric energy from consumed power.
When the feedback efficient of the driving efficiency of considering transmission device and energy feedback device, the degradation of energy when transmission and feedback can be remedied by the difference of cab and counterweight potential variation amount.(W a+ W b+ W c)≤0 still can be set up, and does not influence top conclusion.
The utility model has following advantage with respect to prior art: energy-saving lift with adjustable counterweight power improves the conventional lift system, between the towing machine transmission device of conventional lift and counterweight, increased an automatic transmission with hydraulic torque converter, realize control to counterweight potential variation amount making counterweight can reasonably compensate the potential variation amount of cab by the distance that moves of control counterweight.Select for use heavier counterweight can reduce the center of gravity in building, make the building more stable, the tracks of counterweight also can shorten simultaneously.The utility model has improved the unitary construction design of elevator device, can reduce the power consumption of motor, energy savings.The design and manufacture cost increase is not very big, can bring economic benefit, can bring social benefit again.
Description of drawings
Fig. 1 is that the system of a kind of energy-saving lift with adjustable counterweight power of the utility model forms scheme drawing;
Fig. 2 is the structural representation of automatic transmission with hydraulic torque converter shown in Figure 1;
Fig. 3 is the structural representation of the speed-change gear of automatic transmission with hydraulic torque converter shown in Figure 2;
Fig. 4 is the hydraulic control system structural representation of automatic transmission with hydraulic torque converter shown in Figure 2;
Fig. 5 is the microprocessor control system scheme drawing of automatic transmission with hydraulic torque converter shown in Figure 2.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, 2, this energy-saving lift with adjustable counterweight power, comprise motor, cab, counterweight, motor is connected respectively with cab, counterweight by the towing machine transmission device, be provided with automatic shift device between towing machine transmission device and the counterweight, it is connected to form successively by microprocessor control system, hydraulic control system, mechanical transmission; The speed-change gear of towing machine transmission device, mechanical transmission, counterweight drive connection successively, and the gearshift actuating unit of mechanical transmission is connected with the hydraulic control system signal, and microprocessor control system divides level signal to be connected with motor, cab, hydraulic control system.Elevator work time control system device receives the signals such as car weight that sensor acquisition arrives, send control signal to change-speed box then, make it choose suitable gear, regulate the speed of counterweight potential variation, control the moment and the active energy feedback device of motor again according to required cab curve movement.
During motor braking: total potential energy of counterweight and cab reduces, and that part of potential energy of minimizing is transported to motor by transmission device, and motor produces electric energy, and feeds back to electrical network by energy feedback device, uses for other current consumer.
When motor is done positive work: electrical consumption electric energy, output mechanical work.Drive counterweight and cab motion by transmission device, electric energy is converted into potential energy.
Under ideal state, when choosing suitable transmission gear, can reach best energy-saving effect, even can allow elevator become step electrical generator.
As shown in Figure 3, mechanical transmission is the wheeled mechanical transmission of dead axle, it comprises input shaft, output shaft, first countershaft, second countershaft, output gear and one～four retaining gear cluster, and its gearshift actuating unit comprises first drg, second drg and one～four retaining power-transfer clutch; The towing machine transmission device is connected with input shaft, and output shaft is connected with counterweight;
First drg 1, a retaining power-transfer clutch 13 are installed in input shaft 12 two ends respectively, four retaining power-transfer clutchs 16 are installed in input shaft 12 middle parts, three retaining driving gears 17 are installed on first drg 1, four input shafts 12 that keep off between the power-transfer clutchs 16, four retaining driving gears 15 are installed on the sleeve of four retaining power-transfer clutchs 16, and a retaining driving gear 14 is installed on the sleeve of a retaining power-transfer clutch 13;
Output gear 3 is installed on the output shaft 2, and output gear 3 is equipped with second drg 10 by the other end that first intermediate gear 21 that is installed in first countershaft, 11 1 ends drives first countershaft, 11, the first countershafts 11; Three retaining power-transfer clutchs 19 are installed on first countershaft 11 of first intermediate gear, 21 inboards, and three retaining driven gears 18 are installed on the sleeve of three retaining power-transfer clutchs 19; Two retainings, four retainings, a retaining driven gear 20,8,9 are installed on three first countershafts 11 that keep off between driven gears 18, second drg 10 successively;
Three retaining driven gears 18 drive second countershaft, 4, two retaining power-transfer clutchs 7 by second intermediate gear 5 that is installed in second countershaft, 4 one ends and are installed in second countershaft, 4 other ends, and two retaining driving gears 6 are installed on the sleeve of two retaining power-transfer clutchs 7.First, second drg 1,10 is static in cab, during shift of transmission, plays brake action.
Motor-driven power is as follows at the transfer route of each gear:
The first retaining power transmission line:
Input shaft 12  one retaining power-transfer clutch 13  one retaining driving gear 14  one retaining driven gear 9  first countershaft 11  first intermediate gear 21  output gears 3  output shafts 2;
The second retaining power transmission line:
Input shaft 12  three retaining driving gears 17  three retaining driven gears 18  second intermediate gear 5  second countershaft 4  two retaining power-transfer clutchs 7  two retaining driving gears 6  two retaining driven gears 20  first countershaft 11  first intermediate gear 21  output gears 3  output shafts 2;
The 3rd retaining power transmission line:
Input shaft 12  three retaining driving gears 17  three retaining driven gears 18  three retaining power-transfer clutchs 19  first countershaft 11 first intermediate gears 21  output gears 3  output shafts 2;
The 4th retaining power transmission line:
Input shaft 12  four retaining power-transfer clutchs 16  four retaining driving gears 15  four retaining driven gears 8  first countershaft 11  first intermediate gear 21  output gears 3  output shafts 2.
The action of the hydraulic control system major control gearshift actuating unit of the automatic shift device of Fig. 4 is made up of Hydraulic Pump, various hydraulic valve and hydraulic tubing etc.Whole source pressures of hydraulic efficiency pressure system are in the Hydraulic Pump of change-speed box.Valve body has pressure-gradient control valve and solenoid directional control valve etc., pressure-gradient control valve is used to change oil pressure with control shift of transmission point, solenoid directional control valve is directed to corresponding actuating unit to pressure oil to realize changing transmitting ratio, this change-speed box has 2 drgs, 4 power-transfer clutchs, therefore correspondingly is provided with 6 solenoid directional control valves.
Microprocessor control system and hydraulic control system in the automatic shift device are used, and mechanical transmission is carried out electrohydraulic control.The microprocessor control system of Fig. 5 comprises micro controller system and signal interface circuit, driving amplifying circuit, the control unit of micro controller system divides level signal to be connected by each signal interface circuit with electric life controller, sensor, master cock, divides level signal to be connected with each solenoid directional control valve respectively by each driving circuit.Electric life controller, sensor and master cock pass to signals such as load state, cab speed and working state of system the control unit of micro controller system, the control unit of micro controller system sends instruction and sends corresponding solenoid directional control valve to by driving amplifying circuit, make hydraulic efficiency pressure system control the work of gearshift actuating unit according to certain rules, realize choosing automatically suitable gear, be the distance that the may command counterweight moves like this, realization is to the control of counterweight potential variation amount, thereby make counterweight can reasonably compensate cab potential variation amount, reduce the power consumption of motor, reach energy-conservation purpose.
The above-mentioned specific embodiment is a preferred embodiment of the present utility model; can not limit claim of the present utility model; other any change that does not deviate from the technical solution of the utility model and made or other equivalent substitute mode are included within the protection domain of the present utility model.

Claims (6)

1, a kind of energy-saving lift with adjustable counterweight power, comprise motor, cab, counterweight, described motor is connected respectively with cab, counterweight by the towing machine transmission device, it is characterized in that: be provided with automatic shift device between described towing machine transmission device and the counterweight, it is connected to form successively by microprocessor control system, hydraulic control system, mechanical transmission; Speed-change gear, the counterweight of described towing machine transmission device, mechanical transmission drive connection successively, the gearshift actuating unit of mechanical transmission is connected with described hydraulic control system signal, and described microprocessor control system divides level signal to be connected with motor, cab, hydraulic control system.
2, a kind of energy-saving lift with adjustable counterweight power according to claim 1 is characterized in that: described mechanical transmission is the wheeled mechanical transmission of dead axle.
3, a kind of energy-saving lift with adjustable counterweight power according to claim 2, it is characterized in that: the speed-change gear of the wheeled mechanical transmission of described dead axle comprises input shaft, output shaft, first countershaft, second countershaft, output gear and one～four retaining gear cluster, and its gearshift actuating unit comprises first drg, second drg and one～four retaining power-transfer clutch; Described towing machine transmission device is connected with input shaft, and output shaft is connected with counterweight;
First drg, a retaining power-transfer clutch are installed in the input shaft two ends respectively, four retaining power-transfer clutchs are installed in the input shaft middle part, three retaining driving gears are installed on first drg, four input shafts that keep off between the power-transfer clutchs, four retaining driving gears are installed on the sleeve of four retaining power-transfer clutchs, and a retaining driving gear is installed on the sleeve of a retaining power-transfer clutch;
Output gear is installed on the output shaft, and output gear is by being installed in first intermediate gear drives, first countershaft of first countershaft, one end, and the other end of first countershaft is equipped with second drg; Three retaining power-transfer clutchs are installed on first countershaft of the first intermediate gear inboard, and three retaining driven gears are installed on the sleeve of three retaining power-transfer clutchs; Two retainings, four retainings, a retaining driven gear are installed on three first countershafts that keep off between driven gears, second drg successively;
Three retaining driven gears are by being installed in second intermediate gear drives the two or two countershaft of second countershaft, one end, and two retaining power-transfer clutchs are installed in the second countershaft other end, and two retaining driving gears are installed on the sleeve of two retaining power-transfer clutchs.
4, a kind of energy-saving lift with adjustable counterweight power according to claim 1, it is characterized in that: the described control system of surging comprises Hydraulic Pump, pressure-gradient control valve, solenoid directional control valve, described Hydraulic Pump is connected with the pressure-gradient control valve pipeline, a plurality of solenoid directional control valves are connected with pressure-gradient control valve, gearshift actuating unit pipeline, and a plurality of solenoid directional control valves divide level signal to be connected with microprocessor control system.
5, a kind of energy-saving lift with adjustable counterweight power according to claim 4, it is characterized in that: described microprocessor control system comprises micro controller system, signal interface circuit, driving amplifying circuit, the control unit of described micro controller system divides level signal to be connected by each signal interface circuit with electric life controller, sensor, master cock, divides level signal to be connected with each solenoid directional control valve respectively by each driving circuit.
6, a kind of energy-saving lift with adjustable counterweight power according to claim 5 is characterized in that: described sensor comprises cab weight sensor, cab speed sensor, cab acceleration pick-up.
CN 200620154174 2006-12-01 2006-12-01 Counter weight power adjustable energy-saving elevator Expired - Fee Related CN200974729Y (en)

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Application Number Priority Date Filing Date Title
CN 200620154174 CN200974729Y (en) 2006-12-01 2006-12-01 Counter weight power adjustable energy-saving elevator

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Application Number Priority Date Filing Date Title
CN 200620154174 CN200974729Y (en) 2006-12-01 2006-12-01 Counter weight power adjustable energy-saving elevator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101885440B (en) * 2009-05-11 2012-01-25 三洋电梯(珠海)有限公司 Method and device for saving energy of elevator
CN103241606A (en) * 2013-05-22 2013-08-14 太原理工大学 Electro-hydraulic hybrid driving mine lifting device and control method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101885440B (en) * 2009-05-11 2012-01-25 三洋电梯(珠海)有限公司 Method and device for saving energy of elevator
CN103241606A (en) * 2013-05-22 2013-08-14 太原理工大学 Electro-hydraulic hybrid driving mine lifting device and control method thereof
CN103241606B (en) * 2013-05-22 2014-11-05 太原理工大学 Electro-hydraulic hybrid driving mine lifting device and control method thereof

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20071114

Termination date: 20101201