CN102730604A - Tandem hybrid fork lift truck - Google Patents
Tandem hybrid fork lift truck Download PDFInfo
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- CN102730604A CN102730604A CN2012102017332A CN201210201733A CN102730604A CN 102730604 A CN102730604 A CN 102730604A CN 2012102017332 A CN2012102017332 A CN 2012102017332A CN 201210201733 A CN201210201733 A CN 201210201733A CN 102730604 A CN102730604 A CN 102730604A
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Abstract
The invention provides a tandem hybrid fork lift truck. The tandem hybrid fork lift truck comprises an electric energy providing device, a rectifier, a walking motor, a lifting motor and an electric energy storing device, wherein after alternating current which is provided by the electric energy providing device flows through the rectifier, the electric energy providing device is connected in parallel with the electric energy storing device; after the electric energy providing device is connected in parallel with the electric energy storing device, the output end is collected with the walking motor and/or the lifting motor; the electric energy storing device can be charged to store electric energy and also can discharge to use the stored electric energy; both the walking motor and the lifting motor are generator-motor dual-purpose motors; a driving axle and tyres can drive the walking motor to generate electricity during braking, so that braking energy is converted into electric energy; and under the action of heavy objects, a lifting appliance can drive the lifting motor to generate electricity, so that the potential energy of the heavy objects is converted into electric energy. By the technical scheme of the invention, the potential energy of a falling gantry is converted into the electric energy and stored to ensure that the potential energy is recycled; the braking energy is also recycled during braking; and the tandem hybrid fork lift truck is easy to control and environment-friendly and has small shock at the moment of startup and shutdown.
Description
Technical field
The present invention relates to a kind of Forklift, in particular to a kind of serial mixed power Forklift.
Background technology
Empty van freight container Forklift is that a kind of freight container is periodically carried the implement with stacking, needs Fraquent start braking and lifting container oscilaltion in the course of the work.Existing Forklift generally is a suspender when hoisting operation, through elevating ram suspender, inner upright mounting and freight container is given rise to certain altitude; In the suspender decline process; Control the descending speed of suspender through the aperture of adjusting control valve, stop suspender through closed control valve and descend, most of potential energy consumes in vain in the suspender decline process; Do not recycle; Energy dissipation is serious, and controls the decline of suspender through simple restriction, and system's heating is serious; In addition, in the Forklift job engineering, car load starts frequent, causes engine efficiency low, and the oil consumption of going is higher.
Therefore, need the energy-conservation Forklift of research and development, i.e. the door frame gravitional force and the braking energy of recyclable Forklift.At present, mainly contain and adopt hydraulic way to reclaim door frame gravitional force, but still have a lot of defectives.
It is following to have Forklift energy-conservation main several kinds of modes and defective thereof now:
1) potential energy that descends of weight such as suspender drives HM Hydraulic Motor, and energy is stored to energy storage.This method; Because hydraulic efficiency is lower; The energy that energy storage reclaims is less, and the characteristic of energy storage is along with pressure, the isoparametric variation of temperature are difficult to energy is stored in the energy storage reposefully, and this is the difficult problem that this energy recovery mode never solves;
2) potential energy that descends of weight such as suspender drives HM Hydraulic Motor; Be employed in swing arm hydraulic actuating cylinder oil return line serial connection HM Hydraulic Motor and generator set, potential energy reclaimed, because recovery time is short through hydraulic motor-driving generator; And the hydraulic oil pressure fluctuation is bigger in the removal process; Cause electrical generator to be operated in the low efficiency district, energy recovery efficiency is low, and this is the major defect of this energy recovery mode.
Summary of the invention
For one of solving the problems of the technologies described above at least, the present invention proposes a kind of serial mixed power Forklift.
Serial mixed power Forklift provided by the invention comprises electric energy generator, rectifier, apparatus for storing electrical energy, movable motor and lifting motor; The alternating current that said electric energy generator provides is parallelly connected with said apparatus for storing electrical energy after said rectifier converts direct current (DC) to, and the mouth after the parallel connection is connected with said movable motor and/or said lifting motor; When the voltage at said apparatus for storing electrical energy two ends is higher than the electro-motive force voltage of said apparatus for storing electrical energy, said apparatus for storing electrical energy charging, store electrical energy; When the voltage at said apparatus for storing electrical energy two ends was lower than the electro-motive force voltage of said apparatus for storing electrical energy, said apparatus for storing electrical energy discharge utilized stored electric energy.Said movable motor and lifting motor are generator-motor dual purpose motor; Said movable motor can drive said drive axle and wheel tyre walking, and said drive axle of said Forklift glancing impact and tire can drive said movable motor generating, convert braking energy into electric energy; Said lifting motor can drive suspender work; Said suspender can drive said lifting electric power generation when under the effect of weight potential energy, descending, and is electric energy with the potential energy converting and energy of said weight.
In technique scheme; Cause is parallel with apparatus for storing electrical energy with the electric energy generator; And this apparatus for storing electrical energy can charge in the time of can voltage is greater than its electro-motive force voltage in system, discharge during less than its electro-motive force voltage at system voltage, thereby can the unnecessary power storage in the system be got up, and when system power is not enough, replenishes to system; Arrive purpose of energy saving, realize the energy-conservation of Forklift.And realized that the potential energy when door frame descended is converted into electrical power storage to apparatus for storing electrical energy; The potential energy organic efficiency is high; Practiced thrift the energy, energy-saving efficiency is high, and when the Forklift service brake, can drive electric power generation and be stored in the apparatus for storing electrical energy; Realize the recovery of braking energy, reduced cost; And adopt the lifting motor to realize the lifting of door frame and suspender, and to compare with elevating ram and be easy to control and environmental protection more, the impact that starts and stop is little; In addition, can the lifting parts be placed on the balance position of Forklift, thereby reduce counterweight weight.
Preferably; Also comprise the inverter that can direct current (DC) be converted into alternating current; Between mouth after said inverter is arranged on said electric energy generator and said apparatus for storing electrical energy is parallelly connected and said movable motor and/or the said lifting motor; Convert the said direct current (DC) of exporting after said electric energy generator and the said electrical energy storage device parallel connection to alternating current, drive said movable motor and/or said lifting motor.
In this technical scheme, increase said inverter, then said movable motor and/or said lifting motor can adopt alternating current dynamo, improve commonality, the cost-cutting of motor.
Preferably, also comprise walking frequency converter and lifting frequency converter; The said direct current (DC) of said walking frequency converter after with said electric energy generator and said electrical energy storage device parallel connection converts the alternating current of frequency and voltage controlled to, drives said movable motor and rotates; The said direct current (DC) of said lifting frequency converter after with said electric energy generator and said electrical energy storage device parallel connection converts the alternating current of frequency and voltage controlled to, drives said lifting motor and rotates.
In this technical scheme, adopt walking frequency converter and lifting frequency converter, can convert direct current (DC) into voltage and the controlled alternating current of frequency, come to drive respectively movable motor and lifting motor, simple in structure, be beneficial to control.
Preferably, said electric energy generator comprises the generator set that is installed on the said Forklift and/or can system be provided with the civil power that said Forklift is electrically connected.In this technical scheme, adopt separately or while two kinds of electric energy presentation modes, the power supply realization double shield to Forklift makes Forklift work more reliable.
Preferably, said apparatus for storing electrical energy is a rechargeable battery, is in parallel through DC master row and said electric energy generator at said rechargeable battery.Adopt rechargeable battery as apparatus for storing electrical energy, cost is low, be easy to realize; Adopt the straight line busbar to carry out parallel connection, rational in infrastructure, waste of power is little.
Preferably, also comprise reel, drag-line and drag-line guide piece; The said reel of said lifting motor-driven, said reel drives said drag-line, and said drag-line drives the inner upright mounting lifting that said suspender is installed through said drag-line guide piece.Adopt hoisting mechanism to come lifting suspender and inner upright mounting, hydraulic efficiency pressure system is simple in structure, easy to maintenance relatively.
Preferably, also comprise coupler, drg and reductor; Said coupler, drg and reductor are successively set between said lifting motor and the said reel; The transmission of power of said lifting motor is given said reductor, and said reductor drives said reel; Hovering of said suspender of said drg may command and inner upright mounting.In this technical scheme, coupler can and stop to play the effect of buffering to the startup of door frame; Adopt drg can in needs, stop the rising or the decline of door frame and suspender, and be in floating state.
Preferably, said drag-line guiding mechanism comprises first fixed pulley and second fixed pulley, and said first fixed pulley is installed on the car body of said Forklift, and said second fixed pulley is installed on the outer mast of said Forklift; On the said inner upright mounting movable pulley is installed; Said drag-line is connected with said inner upright mounting through said movable pulley.Adopt the fixed pulley guiding, adopt movable pulley to be connected with inner upright mounting, can be laborsaving, raise the efficiency, and cost low, be easy to realization.
Preferably, said drag-line comprises steel rope; One end of said steel rope is captiveed joint with said reel, walk around said first fixed pulley, said second fixed pulley and said movable pulley after, the other end is captiveed joint with the said outer mast of said Forklift; Perhaps, after said steel rope was walked around said first fixed pulley, said second fixed pulley and said movable pulley, the two ends captive joint also was wound on the said reel.
Drag-line adopts steel rope, and is simple in structure, realizes easily; And above-mentioned two kinds of steel rope connect and fixed form, all can play effect laborsaving, that raise the efficiency.
To sum up, the serial mixed power Forklift that the present invention is above-mentioned has realized that the potential energy when door frame descended is converted into electrical power storage to apparatus for storing electrical energy; The potential energy organic efficiency is high; Practiced thrift the energy, energy-saving efficiency is high, and can drive electric power generation and be stored in the apparatus for storing electrical energy at glancing impact; Realize the recovery of braking energy, reduced cost; And adopt the lifting motor to realize the lifting of door frame and suspender, and to compare with elevating ram and be easy to control and environmental protection more, the impact that starts and stop is little; In addition, can hoisting system be placed on balance position, thereby reduce counterweight weight, reduce the weight of whole Forklift.
Description of drawings
Fig. 1 is the functional block diagram according to serial mixed power Forklift according to the invention;
Fig. 2 is the front view according to serial mixed power Forklift one embodiment according to the invention;
Fig. 3 is the birds-eye view of Forklift shown in Figure 2.
Wherein, the corresponding relation of each parts and label is among Fig. 1 to Fig. 3:
1 generator set 2 movable motors, 3 drive axles and tire 5 lifting motors
6 reels, 7 drag-lines, 8 apparatus for storing electrical energy, 9 walking frequency converters
10 lifting frequency converters, 11 rectifiers, 12 DC master rows, 13 coupler
14 drgs, 15 reductors, 16 inner upright mountings, 17 movable pulleys
18 first fixed pulleys, 19 second fixed pulleys, 20 outer masts, 21 suspenders.
The specific embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with the accompanying drawing and the specific embodiment.Need to prove that under the situation of not conflicting, the application's embodiment and the characteristic among the embodiment can make up each other
A lot of details have been set forth in the following description so that make much of the present invention; But; The present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention does not receive the restriction of following disclosed specific embodiment.
Fig. 1 is the functional block diagram according to serial mixed power Forklift according to the invention; Fig. 2 is the front view according to serial mixed power Forklift one embodiment according to the invention; Fig. 3 is the birds-eye view of Forklift shown in Figure 2.
As shown in Figure 1, serial mixed power Forklift provided by the invention comprises: electric energy generator, rectifier 11, apparatus for storing electrical energy 8, movable motor 2 and lifting motor 5; The alternating current that said electric energy generator provides is parallelly connected with said apparatus for storing electrical energy 8 after said rectifier 11 converts direct current (DC) to, and the mouth after the parallel connection is connected with said movable motor 2 and/or said lifting motor 5; When the voltage at said apparatus for storing electrical energy 8 two ends was higher than the electro-motive force voltage of apparatus for storing electrical energy 8, said electric energy went out storage device 8 chargings, store electrical energy; When the voltage at said apparatus for storing electrical energy 8 two ends was lower than the electro-motive force voltage of apparatus for storing electrical energy 8, said apparatus for storing electrical energy 8 discharges utilized stored electric energy.Further, as shown in Figures 2 and 3, said movable motor 2 is generator-motor dual purpose motor with lifting motor 5; Said movable motor 2 can drive said drive axle and tire 3 walkings, and said drive axle of Forklift glancing impact and tire 3 can drive said movable motor 2 generatings, convert braking energy into electric energy; Said lifting motor 5 can drive suspender 21 work; Said suspender 21 can drive 5 generatings of said lifting motor when under the effect of weight potential energy, descending, be electric energy with the potential energy converting and energy of said weight.
In technique scheme; The parallelly connected apparatus for storing electrical energy 8 of cause with the electric energy generator; And this apparatus for storing electrical energy 8 can charge in the time of can voltage is greater than its electro-motive force voltage in system, can discharge during less than its electro-motive force voltage at system voltage, thereby can the unnecessary power storage in the system be got up, and when system power is not enough, replenishes to system; Arrive purpose of energy saving, realize the energy-conservation of Forklift.And in the present embodiment; Potential energy when having realized door frame 16 declines is converted in electrical power storage to the apparatus for storing electrical energy 8, and the potential energy organic efficiency is high, has practiced thrift the energy; Energy-saving efficiency is high; And can drive motor 2 generating and be stored in the apparatus for storing electrical energy 8 at the driving glancing impact, realized the recovery of braking energy, reduced cost; And adopt lifting motor 5 to realize the lifting of door frame and suspender 21, and to compare with elevating ram and be easy to control and environmental protection more, the impact that starts and stop is little; In addition, can the lifting parts be placed on the balance position of Forklift, thereby reduce counterweight weight.
Wherein, lifting motor 5 can be double-motor, also can be single motor; Movable motor 2 can adopt AC traction electric motor, also can adopt dc brushless motor etc.; Movable motor 2 also can be double-motor, uses the low-speed big motor when climbing or startup, switches to high-speed electric expreess locomotive after the startup.
Preferably; Also comprise the inverter that can direct current (DC) be converted into alternating current; Said inverter is arranged between said electric energy generator and said apparatus for storing electrical energy 8 mouth and said movable motor 2 and/or said lifting motor 5 after parallelly connected; Convert the said direct current (DC) of said electric energy generator and the 8 parallel connection back outputs of said electrical energy storage device to alternating current, drive said movable motor 2 and/or said lifting motor 5.In this technical scheme, increase said inverter, then said movable motor 2 and/or said lifting motor 5 can adopt alternating current dynamo, improve commonality, the cost-cutting of motor.Certainly, movable motor 2 and/or lifting motor 5 also can be itself just to have the DC-AC function, for example are variable-frequency motors, can be directly with direct current (DC) convert into voltage and frequency can with alternating current after use.
Preferably, also comprise walking frequency converter 9 and lifting frequency converter 10; The said direct current (DC) of said walking frequency converter 9 after with said electric energy generator and 8 parallel connections of said electrical energy storage device converts the alternating current of frequency and voltage controlled to, drives said movable motor 2 and rotates; The said direct current (DC) of said lifting frequency converter 10 after with said electric energy generator and 8 parallel connections of said electrical energy storage device converts the alternating current of frequency and voltage controlled to, drives said lifting motor 5 and rotates.
In this technical scheme, adopt walking frequency converter 9 and lifting frequency converter 10, can convert direct current (DC) into voltage and the controlled alternating current of frequency, come to drive respectively movable motor 2 and lifting motor 5, simple in structure, be beneficial to control.Those skilled in the art is to be understood that; All include the inverter circuit that direct current (DC) is converted into alternating current in said walking frequency converter 9 and the lifting frequency converter 10; Can convert direct current (DC) into voltage and the controlled alternating current of frequency, certainly, also adopt other components and parts with inverter circuit; After converting the direct current (DC) of exporting after the parallel connection into alternating current, drive said movable motor 2 and/or lifting motor 5.
Preferably, said electric energy generator comprises that generator set 1 that is installed on the Forklift and/or the civil power that can be electrically connected with Forklift provide system.In the present embodiment, as shown in Figure 1, employing be that generator set 1 is as power supply.In this technical scheme, adopt two-part power supply power supply, the power supply realization double shield to Forklift makes Forklift work more reliable.
Preferably, said apparatus for storing electrical energy 8 is a rechargeable battery, and said rechargeable battery is in parallel through DC master row 12 and power supply.Said rechargeable battery can use lithium cell, also can use Ni-MH battery; Adopt rechargeable battery as apparatus for storing electrical energy be easy to realize, cost is low, those skilled in the art is to be understood that: said apparatus for storing electrical energy 8 can also be other charging/discharging apparatus such as super capacitor.Adopt the straight line busbar to carry out parallel connection, rational in infrastructure, waste of power is little.
In the foregoing description; As shown in Figure 1; Three plase alternating current that generator set 1 sends converts direct current (DC) to through rectifier 11, and direct current (DC) converts the alternating current of frequency and voltage controlled to through walking frequency converter 9 and lifting frequency converter 10, is used to drive movable motor 2 and lifting motor 5.Battery 8 is connected in parallel on the dc bus, and through power-supply management system monitoring voltage variation range, when the voltage at said apparatus for storing electrical energy 8 two ends was higher than the electro-motive force voltage of apparatus for storing electrical energy 8, said electric energy went out storage device 8 chargings, store electrical energy; When the voltage at said apparatus for storing electrical energy 8 two ends was lower than the electro-motive force voltage of apparatus for storing electrical energy 8, said apparatus for storing electrical energy 8 discharges utilized stored electric energy, are convenient to the storage and the utilization of electric energy; When inner upright mounting 16 descends, drive 5 generatings of lifting motor, and store in the battery 8 through lifting frequency converter 10, realize the recovery of door frame potential energy; When the Forklift glancing impact, drive movable motor 2 generatings, store in the battery 8 through walking frequency converter 9 again, realize the recovery of braking energy.
Wherein, Actual situation line among Fig. 1 is represented the programming control circuit of serial mixed power Forklift according to the invention; Programming control mainly is to adopt PLC to control walking frequency converter, lifting frequency converter, accessory equipment frequency converter and power supply etc., adopts the intelligent battery management system to control the charging and the discharge of battery pack.
In the foregoing description, preferably, as shown in Figures 2 and 3, also comprise reel 6, drag-line 7 and drag-line guide piece; Said lifting motor 5 drives said reel 6, and said reel 6 drives said drag-line 7, and said drag-line 7 drives inner upright mounting 16 liftings that said suspender 21 is installed through said drag-line guide piece.Adopt hoisting mechanism to come lifting suspender and inner upright mounting, hydraulic efficiency pressure system is simple in structure, easy to maintenance relatively.
Preferably, also comprise coupler 13, drg 14 and reductor 15; Said coupler 13, drg 14 and reductor 15 are successively set between said lifting motor 5 and the said reel 6; The transmission of power of said lifting motor 5 is given said reductor 15, and said reductor 15 drives said reel 6; Hovering of said suspender 21 of said drg 14 may command and inner upright mounting 16.
In this technical scheme, coupler 13 can and stop to play the effect of buffering to the startup of door frame; Adopt drg 14 can in needs, stop the rising or the decline of door frame and suspender, and be in floating state.
Preferably, said drag-line guiding mechanism comprises first fixed pulley 18 and second fixed pulley 19, shown in first fixed pulley 18 be installed on the car body of Forklift, second fixed pulley 19 is installed on the outer mast 20 of Forklift; On the said inner upright mounting 16 movable pulley 17 is installed; Said drag-line 7 is connected with inner upright mounting 16 through said movable pulley 17.In this technical scheme, adopt the fixed pulley guiding, adopt movable pulley to be connected with inner upright mounting, can be laborsaving, raise the efficiency, and cost low, be easy to realization.
Preferably, said drag-line 7 comprises steel rope; The connection mode of steel rope can be that an end is captiveed joint with reel 6, walk around first fixed pulley 18, second fixed pulley 19 and movable pulley 17 after, the other end is captiveed joint with the outer mast 20 of Forklift; Also can be that the two ends captive joint also was wound on the reel 6 after said steel rope was walked around first fixed pulley 18, second fixed pulley 19 and movable pulley 17.In this technical scheme, drag-line adopts steel rope, and is simple in structure, realizes easily; And above-mentioned two kinds of steel rope connect and fixed form, all can play effect laborsaving, that raise the efficiency.
In sum, through the above embodiment of the present invention, realized that the potential energy when door frame descended is converted into electrical power storage to electrical energy storage device-battery; The potential energy organic efficiency is high; Practiced thrift the energy, energy-saving efficiency is high, and can the drive motor generating and be stored in electrical energy storage device-battery at glancing impact; Realize the recovery of braking energy, reduced cost; And adopt the lifting motor to realize the lifting of door frame and suspender, and to compare with elevating ram and be easy to control and environmental protection more, the impact that starts and stop is little; In addition, can lifting parts such as lifting motor be placed on balance position, thereby reduce counterweight weight, reduce the weight of whole Forklift.
In the present invention, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.Term " a plurality of " refers to two or more, only if clear and definite qualification is arranged in addition.
In the present invention, only if clear and definite regulation and qualification are arranged in addition, broad understanding should be done in terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be captive joint, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can understand above-mentioned term concrete implication in the present invention as the case may be.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a serial mixed power Forklift is characterized in that, comprising:
Electric energy generator, rectifier (11), apparatus for storing electrical energy (8), movable motor (2) and lifting motor (5);
The alternating current that said electric energy generator provides is parallelly connected with said apparatus for storing electrical energy (8) after said rectifier (11) converts direct current (DC) to, and the mouth after the parallel connection is connected with said movable motor (2) and/or said lifting motor (5);
When the voltage at said apparatus for storing electrical energy (8) two ends is higher than the electro-motive force voltage of apparatus for storing electrical energy (8), said apparatus for storing electrical energy (8) charging, store electrical energy; When the voltage at said apparatus for storing electrical energy (8) two ends was lower than the electro-motive force voltage of apparatus for storing electrical energy (8), said apparatus for storing electrical energy (8) discharge utilized stored electric energy;
Said movable motor (2) and lifting motor (5) are generator-motor dual purpose motor;
Said movable motor (2) can drive said drive axle and tire (3) walking, and said drive axle of said Forklift glancing impact and tire (3) can drive said movable motor (2) generating, convert braking energy into electric energy;
Said lifting motor (5) can drive suspender (21) work; Said suspender (21) can drive said lifting motor (5) generating when under the effect of weight potential energy, descending, be electric energy with the potential energy converting and energy of said weight.
2. serial mixed power Forklift according to claim 1 is characterized in that,
Also comprise the inverter that can direct current (DC) be converted into alternating current; Between the mouth and said movable motor (2) and/or said lifting motor (5) after said inverter is arranged on said electric energy generator and said apparatus for storing electrical energy (8) is parallelly connected; Convert the said direct current (DC) of said electric energy generator and said electrical energy storage device (8) parallel connection back output to alternating current, drive said movable motor (2) and/or said lifting motor (5).
3. serial mixed power Forklift according to claim 1 is characterized in that,
Also comprise walking frequency converter (9) and lifting frequency converter (10);
Said walking frequency converter (9) converts the said direct current (DC) of said electric energy generator and said electrical energy storage device (8) parallel connection back output the alternating current of frequency and voltage controlled to, drives said movable motor (2) rotation;
Said lifting frequency converter (10) converts the said direct current (DC) of said electric energy generator and said electrical energy storage device (8) parallel connection back output the alternating current of frequency and voltage controlled to, drives said lifting motor (5) rotation.
4. according to each described serial mixed power Forklift in the claim 1 to 3, it is characterized in that,
Said electric energy generator comprises the generator set (1) that is installed on the said Forklift and/or can system be provided with the civil power that said Forklift is electrically connected.
5. serial mixed power Forklift according to claim 4 is characterized in that,
Said apparatus for storing electrical energy (8) is a rechargeable battery, and said rechargeable battery is in parallel through DC master row (12) and said electric energy generator.
6. serial mixed power Forklift according to claim 5 is characterized in that,
Also comprise reel (6), drag-line (7) and drag-line guide piece;
Said lifting motor (5) drives said reel (6), and said reel (6) drives said drag-line (7), and said drag-line (7) drives inner upright mounting (16) lifting that suspender (21) are installed through said drag-line guide piece.
7. serial mixed power Forklift according to claim 6 is characterized in that,
Also comprise coupler (13), drg (14) and reductor (15);
Said coupler (13), drg (14) and reductor (15) are successively set between said lifting motor (5) and the said reel (6);
The transmission of power of said lifting motor (5) is given said reductor (15), and said reductor (15) drives said reel (6);
Hovering of the said suspender of said drg (14) may command (21) and said inner upright mounting (16).
8. serial mixed power Forklift according to claim 7 is characterized in that,
Said drag-line guide piece comprises first fixed pulley (18) and second fixed pulley (19), and said first fixed pulley (18) is installed on the car body of said Forklift, and said second fixed pulley (19) is installed on the outer mast (20) of said Forklift;
Movable pulley (17) is installed on the said inner upright mounting (16);
Said drag-line (7) is connected with said inner upright mounting (16) through said movable pulley (17).
9. serial mixed power Forklift according to claim 8 is characterized in that,
Said drag-line (7) is a steel rope;
One end of said steel rope is captiveed joint with said reel (6), walk around said first fixed pulley (18), said second fixed pulley (19) and said movable pulley (17) after, the other end is captiveed joint with said outer mast (20); Perhaps,
After said steel rope was walked around said first fixed pulley (18), said second fixed pulley (19) and said movable pulley (17), the two ends captive joint also was wound on the said reel (6).
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| CN2012102017332A CN102730604A (en) | 2012-06-18 | 2012-06-18 | Tandem hybrid fork lift truck |
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| CN2012102017332A CN102730604A (en) | 2012-06-18 | 2012-06-18 | Tandem hybrid fork lift truck |
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| CN105089087A (en) * | 2015-09-07 | 2015-11-25 | 一重集团大连设计研究院有限公司 | Electric shovel hoisting system |
| CN105197839A (en) * | 2015-01-15 | 2015-12-30 | 徐州重型机械有限公司 | Combined support and stacking machine frame provided with combined support |
| CN106899071A (en) * | 2017-04-06 | 2017-06-27 | 福建工程学院 | A kind of energy-conservation forklift truck intelligent recharge and discharge method |
| CN107709221A (en) * | 2015-10-29 | 2018-02-16 | 特雷克斯有限公司 | Heavy lifting car |
| CN109038776A (en) * | 2018-06-24 | 2018-12-18 | 山东华车能源科技有限公司 | A kind of powered locomotive power supply system of dual power supply and rail locomotive |
| CN110422800A (en) * | 2019-08-09 | 2019-11-08 | 安徽合力股份有限公司 | A kind of storage battery forktruck energy distribution system and energy distributing method |
| CN112456391A (en) * | 2020-11-27 | 2021-03-09 | 厦门理工学院 | Energy-saving driving auxiliary system of electric forklift and control method thereof |
| CN113306399A (en) * | 2021-05-11 | 2021-08-27 | 台州学院 | Braking energy recovery method and device for improving braking performance of whole vehicle |
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| CN107709221A (en) * | 2015-10-29 | 2018-02-16 | 特雷克斯有限公司 | Heavy lifting car |
| CN107709221B (en) * | 2015-10-29 | 2019-12-13 | 科尼起重机全球公司 | Heavy crane |
| CN106899071A (en) * | 2017-04-06 | 2017-06-27 | 福建工程学院 | A kind of energy-conservation forklift truck intelligent recharge and discharge method |
| CN106899071B (en) * | 2017-04-06 | 2023-06-20 | 福建工程学院 | Intelligent charging and discharging method for energy-saving forklift |
| CN109038776A (en) * | 2018-06-24 | 2018-12-18 | 山东华车能源科技有限公司 | A kind of powered locomotive power supply system of dual power supply and rail locomotive |
| CN110422800A (en) * | 2019-08-09 | 2019-11-08 | 安徽合力股份有限公司 | A kind of storage battery forktruck energy distribution system and energy distributing method |
| CN110422800B (en) * | 2019-08-09 | 2020-09-25 | 安徽合力股份有限公司 | Energy distribution system and energy distribution method for storage battery forklift |
| CN112456391A (en) * | 2020-11-27 | 2021-03-09 | 厦门理工学院 | Energy-saving driving auxiliary system of electric forklift and control method thereof |
| CN113306399A (en) * | 2021-05-11 | 2021-08-27 | 台州学院 | Braking energy recovery method and device for improving braking performance of whole vehicle |
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Application publication date: 20121017 |