EP2489626B1 - Chariot élévateur à fourche et à contrepoids doté d'un entraînement hybride - Google Patents

Chariot élévateur à fourche et à contrepoids doté d'un entraînement hybride Download PDF

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Publication number
EP2489626B1
EP2489626B1 EP20120152437 EP12152437A EP2489626B1 EP 2489626 B1 EP2489626 B1 EP 2489626B1 EP 20120152437 EP20120152437 EP 20120152437 EP 12152437 A EP12152437 A EP 12152437A EP 2489626 B1 EP2489626 B1 EP 2489626B1
Authority
EP
European Patent Office
Prior art keywords
driver
energy storage
storage device
lift truck
electrical energy
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.)
Not-in-force
Application number
EP20120152437
Other languages
German (de)
English (en)
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EP2489626A1 (fr
Inventor
Dr. Andreas Kwiatkowski
Niels Schmidt
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.)
STILL GmbH
Original Assignee
STILL GmbH
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Filing date
Publication date
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Publication of EP2489626A1 publication Critical patent/EP2489626A1/fr
Application granted granted Critical
Publication of EP2489626B1 publication Critical patent/EP2489626B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07513—Details concerning the chassis
    • B66F9/07531—Battery compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07545—Overhead guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07572—Propulsion arrangements

Definitions

  • the invention relates to a counterbalance forklift truck with a hybrid drive train, comprising an internal combustion engine for driving a traction drive unit, an electric, operable as a generator and motor electric machine and an electrical energy storage device, wherein the counterbalance forklift a vehicle body under a driver's shelter with rear, substantially vertical Column forms an aggregate space for receiving the internal combustion engine, and has a rear-side counterweight, wherein a driver's workplace is formed with a driver's seat within the driver's roof.
  • internal combustion engine operated counterbalance forklifts can be provided for the traction drive mechanical power transmission with a hydrodynamic converter gear or a hydrostatic transmission.
  • an electric power transmission for the traction drive is known in which one of the internal combustion engine, e.g. a diesel engine, powered generator feeds an electrical link from which one or more propulsion engines is powered.
  • the traction drive motor is a three-phase motor, for example asynchronous motor, which is fed via an inverter from the DC link.
  • Such an internal combustion engine-electric counterbalance forklift provides simple conditions to integrate an electrical energy storage device, for example for storing the braking energy.
  • Counterbalance forklifts with a previously described internal combustion engine electric drive system with an additional electrical energy storage device can thus be easily designed as a hybrid counterbalance forklifts by high power requirements, such as an acceleration process, in addition to the engine, for example, to power the traction drive motor or powered by the engine Generator for supporting the internal combustion engine when driving the drive motor or other aggregates, such as a hydraulic power supply of the counterbalance forklift supplying hydraulic pump, electrical energy of the electrical energy storage device is removed.
  • the internal combustion engine can then be designed smaller in performance accordingly.
  • a counterbalance forklift with an internal combustion engine drive system and a hydrostatic drive or hydrodynamic traction drive can also be designed as a hybrid counterbalance forklift if an additional electric motor and generator electric machine and an electrical energy storage device is used in addition to the internal combustion engine as the electric drive.
  • the fuel consumption of the internal combustion engine can be reduced by electrical energy being generated and stored in the electrical energy storage device via the electric machine operated as a generator during braking operation or during a lowering operation of a load.
  • the electrical energy from the electrical energy storage can be supported by a motor operation of the electric machine in the drive and / or in lifting mode of the internal combustion engine or a drive or a hydraulic pump working hydraulics are driven purely electrically.
  • an electric traction drive with at least one operable as a generator electrical Traction motor has, in a simple manner electrical energy can be stored by a regenerative operation of the drive motor in the electrical energy storage device and a support of the internal combustion engine in an acceleration process or a purely electric traction drive with the energy from the electrical energy storage device.
  • the electrical energy storage devices are due to the requirements of high cycle count, the ability to take high currents in a short time and give high energy and power density usually high performance batteries, such as lithium-ion batteries as electrochemical energy storage, or high-performance double-layer capacitors , so-called ultra-caps, formed as electrostatic energy storage.
  • high performance batteries such as lithium-ion batteries as electrochemical energy storage, or high-performance double-layer capacitors , so-called ultra-caps, formed as electrostatic energy storage.
  • Passive thermal measures are the heat input into the electrical energy storage device by the heat sources of the counterbalance forklift, which are formed by the internal combustion engine, the cooler and the exhaust system, in particular the tailpipe of the exhaust system, and other hot units of the drive, such as the hydraulic system of the working hydraulics to keep low.
  • Active thermal measures consist of an active cooling device of the electrical energy storage device in order to minimize the negative effects on high temperatures in the electrical energy storage device on the life and / or performance of the electrical energy storage device.
  • the cooling of the electrical energy storage device can by an air conditioner, a liquid cooling or by a convection cooling, for example, an air cooling, carried out, in which optionally a forced convection can be achieved with a fan.
  • the mechanical situation as boundary conditions for the installation location of the electrical energy storage device is in the space requirement of the electrical energy storage device and to provide a suitable installation space on the counterbalance forklift.
  • the safety as a further boundary conditions for the installation of the electrical energy storage device is to be considered in terms of active safety and passive safety.
  • Active safety represents the protection of the operator of the counterbalance forklift against hazards that may arise from the electrical energy storage device. Due to the high power and energy density of the electrical energy storage device have electrical energy storage devices of hybrid drives with a small volume on a large amount of energy that can be discharged suddenly in the event of a fault. Hazardous chemical substances can be released in case of damage or fire.
  • the passive safety is the protection of the electrical energy storage device against external influences.
  • the electrical energy storage device is externally attached to the vehicle contour and protrudes from the vehicle contour, the electrical energy storage device in the operation of the counterbalance forklift can be damaged by approaching an obstacle, such as a shelf .
  • damage to an exterior of the vehicle contour mounted electrical energy storage device by third party action is possible, for example, by falling cargo.
  • the installation of the electrical energy storage device should preferably take place in such a way that the hybrid drive train can be derived from a counterbalance forklift with an internal combustion engine drive train with minor structural changes and thus a hybrid drive train can be upgraded.
  • the installation of the electrical energy storage device of the hybrid drive train should not cause the electrical energy storage device makes the installation of components no longer possible, so that certain vehicle variants or features of the counterbalance forklift can no longer be produced.
  • the installation of the electrical energy storage device in the unit room continues to lead to a high design effort to create the necessary space for installation of the electrical energy storage device space in the unit room, since the installation space is exploited in the aggregate space due to the dimensions of the counterbalance forklift and has a high degree of space utilization ,
  • the integration of the electrical energy storage device in the unit room thereby leads to an independent design of a hybrid stacker with a correspondingly high design effort, which can not be easily derived from an existing counterbalance forklift with an internal combustion engine drive.
  • the electrical energy storage device is further already from the EP 2 110 358 A1 known to arrange the electric energy storage device in a counterbalance forklift with a hybrid drive train on the driver's protection or in the upper rear-side area of the driver's roof or directly on the counterweight to arrange and secure.
  • the arrangement of the electrical energy storage device on the driver's shelter roof or at its upper rear-side area leads to a complicated cable laying for the electrical connection of the energy storage device.
  • the arrangement of the energy storage device at the upper, rear-side area of the driver's roof can continue to result in reduced passive safety and thus protection of the electrical energy storage device from external influences by the rearwardly projecting arrangement of the energy storage device, since the energy storage device during operation of the counterbalance forklift are easily damaged by starting can.
  • the arrangement and attachment of the electric counterbalance forklift on the counterweight causes the energy storage device by the waste heat of the counterweight, in which usually a cooler device of the engine is arranged, and the waste heat of an arranged in the region of the counterweight, designed as an exhaust system exhaust system, the Internal combustion engine is heated, the end pot is also usually arranged in the counterweight.
  • the arrangement and attachment of the energy storage device on the counterweight thus leads to a great deal of effort for passive thermal measures to keep the heat effects of the counterweight and the exhaust system to the electrical energy storage device low. Furthermore, the arrangement and attachment of the electrical energy storage on the counterweight due to the height of the electrical energy storage leads to a visual obstruction of a looking back towards the counterweight operator. In addition, the arrangement and attachment of the energy storage device on the counterweight with respect to the manufacturability of different vehicle variants leads to disadvantages, as certain vehicle variants may not be realized under certain circumstances.
  • a propellant gas tank is usually arranged on the counterweight, which can no longer be positioned at this usual position by the arrangement and attachment of the electric energy storage device of the hybrid drive train on the counterweight.
  • a counterbalance forklift with an engine designed as a diesel engine for various applications as a vehicle variant, an emission control system with a particulate filter and / or an additional air filter system for the intake air of the engine is required, the particulate filter or the air filter system usually on the counterweight is arranged.
  • the arrangement and attachment of the electrical energy storage device of the hybrid drive train on the counterweight, the soot particle filter and the air filter system can not be positioned at this usual place.
  • the present invention has for its object to provide a generic counterbalance forklift with a hybrid powertrain available, which is optimized with respect to the arrangement of the electric energy storage device of the hybrid powertrain on the boundary conditions thermal situation, mechanical situation, safety of the energy storage device and impairments for vehicle variants.
  • the electrical energy storage device is arranged at the rear pillars of the driver's roof in the lower region behind the driver's seat and facing in the vehicle longitudinal direction directly to the rear pillars of the driver's roof to the rear and / or at least with a portion of a longitudinal extent in relation is arranged on the vehicle longitudinal direction between the rear pillars of the driver's roof.
  • the attachment to the rear pillars of the driver's roof in the lower area behind the driver's seat is thus selected as mounting location of the electrical energy storage of the hybrid drive train, wherein the electrical energy storage is arranged in the vehicle longitudinal direction directly to the vertical columns of the driver's roof and partially between the rear Pillars of Driver's roof is arranged and thus directly and directly behind the driver's roof is located above the counterweight.
  • the electrical energy storage device is arranged in the vehicle longitudinal direction directly to the rear adjacent to the driver's roof and possibly in the vehicle longitudinal direction Space of the vertical columns of the driver's roof partially or completely exploited.
  • the electrical energy storage device thus results in an arrangement in which the electrical energy storage device ends directly behind the driver's roof, so that the electrical energy storage device only slightly covers the front portion of the counterweight upwards.
  • Such a roof mounting of the electric energy storage device to the rear pillars of the driver's roof, in the vertical direction behind the driver's seat with a small overhang in the vehicle longitudinal direction on the counterweight has a number of advantages.
  • the passive thermal measures there is a sufficient distance to the arranged in the unit room, heat-emitting components and the counterweight arranged cooler of the engine and the counterweight arranged end pot of an exhaust system, so that at the mounting location according to the invention a low heat input into the electrical energy storage device through the heat dissipating components of the counterweight forklift occurs.
  • the mounting location according to the invention has advantages in terms of active thermal measures, as at the mounting location according to the invention directly to the rear pillars of the driver's roof in the lower area behind the driver's seat cooler ambient air from a cooling device of the electrical energy storage device can be sucked, since the arranged in the counterweight heat sources, which are formed by the cooler device of the internal combustion engine and the end pot of the exhaust system of the internal combustion engine, are arranged further away.
  • the mounting location according to the invention has the advantage over a mounting of the electrical energy storage device in the unit room or a mounting on the right exit of the driver's workplace with respect to the active thermal measures that during operation of the Gegenissgabestaplers of a cooler device of the electrical energy storage device, such as air cooling with a fan, relatively little contaminated with contaminated by the wheels dust contaminated ambient air is sucked, so that in the mounting location according to the invention a small construction cost for filter measures the cooler device of the electrical energy storage device is required.
  • the mounting location according to the invention in terms of active safety for the operator advantages, since the electrical energy storage device by the construction of the driver's roof, such as a rear wall, separated from the driver's workplace and thus located outside the driver's workplace and thus the electrical energy storage device through the Construction of the driver's roof can be optimally isolated by the operator.
  • the mounting location of the electrical energy storage device according to the invention also has over the attachment and arrangement of the energy storage on the counterweight in terms of active safety advantages, as by the at least partial utilization of the space between the two vertical columns space in the vehicle longitudinal direction of the electrical energy storage directly on the rear-side area of the driver's roof is arranged and thus only slightly protrudes from the vehicle contour. In the mounting location of the electrical energy storage device according to the invention thus continues to result in a low risk that the electrical energy storage device is approached during operation of the counterbalance forklift or can be damaged by a third party.
  • the mounting location according to the invention of the electric energy storage device directly on the rear-side region of the columns of the driver's shelter roof has the advantage that the energy storage device covers only a small front portion of the counterweight upwards.
  • the mounting location of the electrical energy storage device according to the invention can thus be above the counterweight behind the electric Energy storage device further modules are arranged so that the mounting location according to the invention does not affect the manufacturability of vehicle variants and equipment features.
  • the electrical energy storage device is arranged on a supporting structure connecting the vertical columns, in particular a driver's protection roof rear wall.
  • the driver's protective roof rear wall which is preferably formed by a vertically arranged sheet metal, thus forms a supporting structure with which the electrical energy storage device can be arranged and fastened to the vertical pillars of the driver's roof.
  • a driver's shelter roof rear wall which is arranged and secured between the two vertical struts of the driver's roof, as a support structure
  • the electrical energy storage device can be arranged and secured with low construction costs at the back of the driver's roof and thus on the rear vertical struts of the driver's roof.
  • the driver's sunroof rear wall on which the electrical energy storage device is arranged and fastened isolation of the operator from the energy storage device can be achieved in order to achieve high active safety and effective protection of the operator from the energy storage device.
  • the part of the energy storage device arranged between the rear pillars of the driver's protection roof consists of the supporting structure.
  • Such a support structure, in which the driver's protective roof rear wall is arranged within the longitudinal extent of the vertical struts in the vehicle longitudinal direction between the rear, vertical pillars of the driver's roof can, with low construction costs, that the electrical energy storage device can be arranged at least partially with the longitudinal extent between the vertical columns of the driver's roof in order to achieve in the vehicle longitudinal direction only a slight overhang of the electrical energy storage device via the counterweight.
  • the mounting location of the electrical energy storage device according to the invention also allows advantages in terms of the operator's view when, according to one embodiment of the invention, the electrical energy storage device is arranged below a line of sight of an operator sitting on the driver's seat and the rear-side upper edge of the counterweight. As a result, the view is not impaired for a looking back towards the counterweight operator at the mounting location of the electrical energy storage device according to the invention.
  • the electrical energy storage device is provided with a cooler device which sucks in cooling air from a driver's shelter roof designed as a closed driver's cab.
  • the mounting location of the electrical energy storage device according to the invention at the rear pillars of the driver's roof and thus directly adjacent to the driver's roof allows the cooler device of the electrical energy storage device, such as air cooling with a fan, can use air from a closed cab with low construction costs. If the air in the cab is already filtered and / or cooled by an air conditioner of the cab, effective cooling of the electrical energy storage device is made possible with low construction costs for a cooler device.
  • the energy storage device is arranged in a housing formed by the driver's roof panel and a removable cover. Removing the cover provides good accessibility to the rear roof of the driver's protection fixed electrical power supply device for service and maintenance.
  • the housing seen in cross-section on a substantially upright standing rectangular shape whose vertical height is greater than the length in the vehicle longitudinal direction.
  • the housing in the upper region forms a window cutout for a rear window of the driver's roof
  • a rear window can be used for a partially or completely closed driver's cab with little additional construction between the rear pillars of the driver's roof and the housing.
  • the housing of the energy storage device on the top of a stop surface to which the rear window can be attached, so that a rear window can be used as equipment feature in a simple manner in the window formed by the rear vertical columns of the driver's roof and the housing of the energy storage device ,
  • the internal combustion engine may be designed as a diesel engine.
  • the mounting location of the electrical energy storage device according to the invention directly at the lower region of the rear pillars of the driver's roof allows this in that on the counterweight behind the energy storage device, an emission control system, in particular a soot particle filter, the diesel engine can be arranged.
  • an emission control system in particular a soot particle filter
  • a vehicle variant of a hybrid stacker with a previously arranged on the counterweight exhaust gas purification system as a feature can thus be easily manufactured.
  • the mounting location according to the invention of the electric energy storage device of the hybrid drive train furthermore makes it possible to arrange an air filter system for the intake air of the internal combustion engine in the conventional manner on the counterweight behind the energy storage device according to an embodiment of the invention.
  • a vehicle variant of a hybrid stacker with a previously arranged on the counterweight air filter system for the intake air of the engine as an equipment feature can thus be easily manufactured.
  • the internal combustion engine of the hybrid stacker according to the invention can be designed as a propellant gas engine.
  • the mounting location of the electrical energy storage device according to the invention directly to the rear pillars of the driver's roof in the lower region makes it possible that on the counterweight behind the energy storage device, a propellant gas tank, such as a fuel tank or gas tank can be arranged for the propellant gas engine in a conventional manner.
  • a propellant gas tank such as a fuel tank or gas tank can be arranged for the propellant gas engine in a conventional manner.
  • a vehicle variant of a hybrid stacker with a propellant gas engine and a previously arranged on the counterweight propellant gas tank for the propellant gas engine can thus be easily manufactured.
  • the mounting location according to the invention of the electric energy storage device of the hybrid drive train allows a rear-side illumination support with a turn signal, tail light and brake light to be arranged on the counterweight behind the energy storage device.
  • a vehicle variant of a hybrid stacker with a previously arranged on the counterweight rear-side illumination support can thus be made in a simple manner.
  • FIG. 1 a counterbalance forklift 1 is shown with a hybrid drive train in a plan view of an aggregate space formed by a vehicle frame 2 with the essential units of the hybrid drive train.
  • the counterbalance forklift 1 has a vehicle body 2 designed as a vehicle frame, which extends below one in the FIG. 3 illustrated driver's roofs 3 has a unit space. Within the driver's roof 3, a driver's workplace 4 is formed with a driver's seat 5.
  • the counterbalance forklift 1 is provided with two drive wheels 6 and in the area facing away from the load with steered wheels 7.
  • a mast 8 is arranged, on which a trained as a load lifting device 9 up and is arranged movable.
  • the truck 1 is provided with a counterweight 10.
  • the counterbalance forklift 1 is provided with an internal combustion engine electric drive system that includes an electric traction drive unit.
  • the traction drive unit has a power supply unit that is powered by an internal combustion engine 11, e.g. a diesel engine or a propellant gas engine, and a generator 12 connected to and driven by the internal combustion engine 11 and designed as a synchronous generator.
  • the electrical energy generated by the generator 12 is supplied via a rectifier 13 to a power electronics 14, by means of which at least one arranged in or on a drive axle 15 electric traction drive motor 16, for example, an asynchronous three-phase motor, is supplied with electrical energy.
  • the traction drive motor 16 can be operated as a motor or generator.
  • the traction drive motor 16 is connected to the drive wheels 6 with the interposition of a differential gear 17 and two reduction gears 18.
  • a dual-motor axle may also be provided, in each of which a traction drive motor with the interposition of a reduction gear is in communication with the corresponding drive wheel 6.
  • the internal combustion engine 11, the generator 12, the drive axle 15 and optionally the power electronics 14 are in this case arranged together with other components not shown in the formed below the driver's roof 3 unit space of the counterbalance forklift 1.
  • a hydraulic system for supplying the working hydraulics and / or a hydraulic steering device for the wheels 7, which consists of a hydraulic pump 19 driven by the internal combustion engine 11, a hydraulic tank and corresponding control valves, is to be counted among these further components arranged in the assembly space.
  • a fuel tank 20 for the diesel engine is further arranged in the engine room.
  • the internal combustion engine 11 is provided with a liquid cooling.
  • the liquid cooling has a heat exchanger 21 arranged, for example, in the region of the counterweight 10, which is connected to the internal combustion engine 11 in cooling circuits 22.
  • the heat exchanger 21 is traversed by means of a cooling fan 23 of air to increase the deliverable from the cooling liquid to the ambient heat amount of heat.
  • a corresponding air channel 24 is formed for the cooling air flow of the cooling fan 23.
  • an end cup 25 of an exhaust system of the internal combustion engine 11 is disposed within the counterweight 10, which is preferably arranged in the region of the air channel 24 of the counterweight 10.
  • an electrical energy storage device 30 of the hybrid drive train is connected.
  • the energy storage device 30 is preferably formed by high-performance double-layer capacitors, so-called ultra-caps.
  • power can be generated via the traction drive motor 16 which is stored in the electric energy storage device 30.
  • the energy stored in the energy storage device 30 can be supplied to the travel drive motor 16 via the power electronics 14 in addition to the power generated by the generator 12, which is driven by the engine 11.
  • the internal combustion engine 11 can be made smaller and still a large power, e.g. can be achieved during short acceleration of the counterbalance forklift 1.
  • FIG. 2 schematically shows the structure of the hybrid drive system of the counterbalance forklift 1 of the FIG. 1 ,
  • the engine 11 drives the generator 12.
  • the three-phase current generated by the generator 12 is rectified in the rectifier 13 and supplied to the power electronics 14.
  • An inverter 35 forms from the DC voltage of the intermediate circuit formed as a DC intermediate circuit 36 three-phase three-phase variable frequency, with which the traction drive motor 16 is fed.
  • the electrical energy storage device 30 is connected to the DC intermediate circuit 36 of the power electronics 14 by means of an inverter 37, which may be integrated in the power electronics 14.
  • FIGS. 3 to 5 a mounting location according to the invention of the electric energy storage device 30 of the hybrid drive train on the counterbalance forklift 1 is shown in greater detail.
  • the driver's protection roof 3 has two rear, spaced in the vehicle transverse direction vertical columns 3a, 3b, at the lower region and thus behind the driver's seat 5, the electrical energy storage device 30 is arranged. Seen in the vehicle longitudinal direction, the electrical energy storage device 30 is arranged at least with a part of its longitudinal extent between the vertical columns 3a, 3b of the driver's roof 3. This results in the mounting location of the electrical energy storage device 30 according to the invention, a roof mounting the energy storage device 30 to the rear pillars 3a, 3b of the driver's roof 3 directly above the counterweight 10 and in the vehicle longitudinal direction directly on the driver's roof 3 and behind the driver's roof 3 with a short overhang the counterweight 10.
  • the electrical energy storage device 30 is arranged and fixed with a support structure 50 in the vehicle transverse direction between the two vertical columns 3a, 3b, so that the electrical energy storage device 30, the space of the vertical columns 3a, 3b in the vehicle longitudinal direction partially or completely with.
  • the support structure 50 of the electrical energy storage device 30 is - as in the FIGS. 6 and 7 in which the driver's protective roof 3 is shown in more detail - from a substantially vertical plate which is arranged and secured between the two vertical columns 3a, 3b of the driver's roof 3 and forms a driver's shelter roof rear wall 51 connecting the two columns 3a, 6b.
  • the driver's protective roof rear wall 51 is seen in the vehicle longitudinal direction in the driver's workplace 4 facing front of the vertical columns 3a, 3b of the driver's protection 3 and thus within the longitudinal extent of the struts 3a, 3b in the vehicle longitudinal direction in the front region between the struts 3a, 3b arranged.
  • the electrical energy storage device 30 is arranged and fixed on the rear side of the driver's protection roof rear wall 51 facing the counterweight 10. The electrical energy storage device 30 is thus in Vehicle longitudinal direction partially disposed within the extension of the vertical columns 3a, 3b. From the FIG.
  • the electrical energy storage device 30 is arranged in the lower area of the driver's protection roof rear wall 51 and above the electrical energy storage device 30 further components, such as a starter battery 52, a fuse box 53 and optionally a cooling water balance tank on the driver's shelter roof rear wall 51 can be arranged.
  • an intake manifold 55 for designed as an air cooling with a fan cooler device of the energy storage device 30.
  • a removable cover 54 which forms, together with the driver's protective roof rear wall 51, a housing 40 for the electrical energy storage device 30 arranged on the driver's protection roof rear wall 51 and the further components arranged on the driver's protection roof rear wall 51.
  • the housing 40 formed by the cover 54 and the driver's protective roof rear wall 51 has seen in cross section - as in particular from FIG. 4 it can be seen - a substantially upright standing rectangular shape, wherein the height is selected to be greater in the vertical direction than the length in the vehicle longitudinal direction.
  • grooves 41 are formed on the vertical columns 3a, 3b, and on the upper side of the housing 40, for example on the driver's protection roof rear wall 51, a stop surface extending in the vehicle transverse direction 42 formed.
  • the installation location of the electrical energy storage device 30 according to the invention on the driver's shelter roof rear wall 51 arranged between the two struts 3a, 3b and thus in the lower area of the vertical columns 3a, 3b of the driver's roof 3 directly on or behind the driver's shelter roof 3 represents an optimal installation location with regard to the boundary conditions thermal situation , mechanical situation, safety of the energy storage device and impairments for vehicle variants.
  • the assembly site according to the invention results in a low heat input of arranged in the unit compartment components of the drive train and under a cover 45 in the air duct 24 of the counterweight 10 arranged heat exchanger 21 and the end pot 25 of the exhaust system in the electrical energy storage device 30th
  • the mounting location of the electrical energy storage device 30 according to the invention also makes it possible to suck in air cooled from an airbag designed as a closed driver's cab 3 and optionally cooled by an air conditioner for cooling the electrical energy storage device 30.
  • An effective insulation between the electrical energy storage device 30 and the operator located in the driver's seat and thus protection of the operator from dangers from the electrical energy storage device 30 can be achieved by the support structure 50 formed by the driver's protective roof rear wall 51.
  • the mounting location of the electrical energy storage device 30 according to the invention has - as in particular from the FIGS. 4 and 5 is apparent - a slight projection from the vehicle contour, so that the risk of damage is reduced by starting or by third party action.
  • the mounting location according to the invention of the electrical energy storage device 30 - as in particular in the FIG. 4 it can be seen - has a slight projection of the electrical energy storage device 30 to the rear on the top of the counterweight 10, so that it is possible on the counterweight 10 behind the electric energy storage device 30, an exhaust gas purification system for a diesel engine, a propellant gas tank for a propellant gas engine, an air filter system for to arrange the intake air of the engine and / or a rear lighting support.
  • the mounting location according to the invention thus does not lead to any impairment with regard to the manufacturability of vehicle variants and equipment features and makes it possible for the hybrid drive train by additional arrangement of the electric Energy storage device 30 derived from a modified forklift rear wall 51 of a counterbalance forklift 1 with an internal combustion engine electric powertrain.

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  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
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  • Forklifts And Lifting Vehicles (AREA)

Claims (16)

  1. Chariot élévateur à fourche et à contrepoids (1) comprenant un entraînement hybride, qui comprend un moteur à combustion interne (11) pour l'entraînement d'un groupe motopropulseur, une machine électrique (16) pouvant fonctionner en tant que générateur et moteur électrique, et un dispositif d'accumulation d'énergie électrique (30), le chariot élévateur à fourche et à contrepoids présentant un corps de véhicule (2) qui forme, sous un toit de protection du conducteur (3), avec des colonnes arrière essentiellement verticales (3a, 3b) un espace d'unités pour recevoir le moteur à combustion interne, et un contrepoids du côté arrière (10), un poste de conduite (4) avec un siège de conducteur (5) étant réalisé à l'intérieur du toit de protection du conducteur (3), caractérisé en ce que le dispositif d'accumulation d'énergie électrique (30) est disposé au niveau des colonnes arrière (3a, 3b) du toit de protection du conducteur (3) dans sa région inférieure derrière le siège du conducteur (5) et est disposé dans la direction longitudinale du véhicule de manière tournée vers l'arrière directement au niveau des colonnes arrière (3a, 3b) du toit de protection du conducteur (3) et/ou au moins avec une partie d'une étendue longitudinale par rapport à la direction longitudinale du véhicule entre les colonnes arrière (3a, 3b) du toit de protection du conducteur (3).
  2. Chariot élévateur à fourche et à contrepoids selon la revendication 1, caractérisé en ce que le dispositif d'accumulation d'énergie électrique (30) est disposé au niveau d'une construction de support (50) reliant les colonnes verticales (3a, 3b), en particulier d'une paroi arrière du toit de protection du conducteur (51).
  3. Chariot élévateur à fourche et à contrepoids selon la revendication 1 ou 2, caractérisé en ce que la partie du dispositif d'accumulation d'énergie (30) disposée entre les colonnes arrière (3a, 3b) du toit de protection du véhicule (3) est constituée par la construction de support (50).
  4. Chariot élévateur à fourche et à contrepoids selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le dispositif d'accumulation d'énergie électrique (30) est disposé dans la direction transversale du véhicule complètement entre les colonnes arrière (3a, 3b) du toit de protection du conducteur (3).
  5. Chariot élévateur à fourche et à contrepoids selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif d'accumulation d'énergie électrique (30) est disposé en dessous d'une ligne de vision (60) d'un opérateur assis sur le siège du conducteur (5) et en dessous du bord supérieur arrière du contrepoids (10).
  6. Chariot élévateur à fourche et à contrepoids selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif d'accumulation d'énergie électrique (30) est pourvu d'un dispositif de refroidissement qui aspire de l'air de refroidissement depuis un toit de protection du conducteur (3) réalisé sous forme de cabine de conducteur fermée.
  7. Chariot élévateur à fourche et à contrepoids selon l'une quelconque des revendications 2 à 6, caractérisé en ce que le dispositif d'accumulation d'énergie (30) est disposé dans un boîtier (40) formé par la paroi arrière du toit de protection du conducteur (51) et un recouvrement amovible (54).
  8. Chariot élévateur à fourche et à contrepoids selon la revendication 7, caractérisé en ce que le boîtier (40) présente, en section transversale, une forme rectangulaire essentiellement debout sur la tranche, dont la hauteur verticale est supérieure à la longueur dans la direction longitudinale du véhicule.
  9. Chariot élévateur à fourche et à contrepoids selon la revendication 7 ou 8, caractérisé en ce que le boîtier (40) forme, dans la région supérieure, une section de fenêtre pour une vitre arrière du toit de protection du conducteur (3).
  10. Chariot élévateur à fourche et à contrepoids selon la revendication 9, caractérisé en ce que le boîtier (40) du dispositif d'accumulation d'énergie (30) présente, au niveau du côté supérieur, une surface de butée (42) contre laquelle peut être installée la vitre arrière.
  11. Chariot élévateur à fourche et à contrepoids selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le moteur à combustion interne (11) est réalisé sous forme de moteur diesel.
  12. Chariot élévateur à fourche et à contrepoids selon la revendication 11, caractérisé en ce qu'une installation de purification des gaz d'échappement, en particulier un filtre à particules de suie, du moteur diesel, est disposée sur le contrepoids (10) derrière le dispositif d'accumulation d'énergie (30).
  13. Chariot élévateur à fourche et à contrepoids selon l'une quelconque des revendications 1 à 12, caractérisé en ce que qu'une installation de filtre à air pour l'air d'admission du moteur à combustion interne (11) est disposée sur le contrepoids (10) derrière le dispositif d'accumulation d'énergie (30).
  14. Chariot élévateur à fourche et à contrepoids selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le moteur à combustion interne (11) est réalisé sous forme de moteur à gaz propulseur.
  15. Chariot élévateur à fourche et à contrepoids selon la revendication 14, caractérisé en ce qu'un réservoir de gaz propulseur, en particulier un réservoir de gaz propulseur pouvant être rechargé ou une bouteille de gaz propulseur remplaçable, du moteur à gaz propulseur, est disposé sur le contrepoids (10) derrière le dispositif d'accumulation d'énergie (30).
  16. Chariot élévateur à fourche et à contrepoids selon l'une quelconque des revendications 1 à 15, caractérisé en ce qu'un support d'éclairage arrière avec un clignotant, un feu arrière et un feu de frein est disposé sur le contrepoids (10) derrière le dispositif d'accumulation d'énergie (30).
EP20120152437 2011-02-21 2012-01-25 Chariot élévateur à fourche et à contrepoids doté d'un entraînement hybride Not-in-force EP2489626B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011011854 2011-02-21
DE201110013317 DE102011013317A1 (de) 2011-02-21 2011-03-07 Gegengewichtsgabelstapler mit einem Hybridantrieb

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EP2489626A1 EP2489626A1 (fr) 2012-08-22
EP2489626B1 true EP2489626B1 (fr) 2013-09-04

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3018797B1 (fr) * 2014-03-19 2019-03-29 Societe Des Anciens Etablissements L. Geismar Machine de levage de poids, comprenant un dispositif de fleche de grue et un dispositif de contrepoids
DE102016123808A1 (de) * 2016-12-08 2018-06-14 Still Gmbh Flurförderzeug mit einem Fahrerschutzdach
DE102017114009A1 (de) 2017-06-23 2018-12-27 Linde Material Handling Gmbh Zurrverankerung eines Fahrzeugs

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026378A (en) * 1975-11-28 1977-05-31 Clark Equipment Company Electric lift truck body construction
JP2008063114A (ja) 2006-09-08 2008-03-21 Toyota Industries Corp ハイブリッド産業車両
DE102008025142A1 (de) 2008-04-16 2009-10-22 Still Gmbh Flurförderzeug, insbesondere Gabelstapler, mit einem Hybridantrieb

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EP2489626A1 (fr) 2012-08-22

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