DE1969912U - FLOOR CONVEYOR. - Google Patents

Description

Ρ.Α.29Ί 096 * 5/30/67

Junghe i nri ch

UnternehmensVerwaltung KG "

JLZLS: '2δ, May 1967

§>Attorney's file ·. 2886-

Industrial truck

;:; The invention relates to an industrial truck with two

;> steerable drive axles each with a gear and

[> · ■ at least one drive motor and one energy source "

; for this drive motor.

; Such vehicles have an electric drive motor

;; known. This electric drive motor stent with the

r; Gearbox and drive axle in connection »If applicable

if it is eye-opening or in the same

I bracat. This electric motor rotates during a steering

I * movement of the drive axis. Therefore, for such a mo-

L- for movable cable connections required by the

; . high currents flow. As a result of this agile

^; Such vehicles are not designed for high beiverbindungen contactor

v class - usable because security is not high enough

• , is guaranteed against cable breakage.

To avoid this fact it is known to use the dreaable Drive motors designed as Hjäromotors. In such Vehicles is an explosion-proof chassis

!;] ;. Electric motor arranged, -which on the operating means

ψ of a hydro circuit _$ in particular an oil circuit, acts,

· .: to which a pressure oil pump and the regulation and control

; ■: direction as well as a tank as a hydraulic oil storage container

j '^; Listen. There are still problems that can be solved

^ for · the Bruck oil supply uad discharge sur turnable.

■ ί "t ri eb sb augrupp e.

This design is associated with very high costs because of the special features. For the same reasons, a very low overall efficiency must be accepted. The efficiencies are generally between 30 and 50 %% while a direct electric drive achieves overall efficiencies of over 70%.

The invention has for its object to eliminate these Geesthacht hurry and create zn a vehicle despite lioher safety requirements and explosion-proof Ausfiihrung has low energy consumption and at the same time requires only small and light Akkuaralatoren "

According to the invention, this object is achieved in that at least one explosion-proof electric motor is rigidly attached to and driven by the vehicle. dormant power connections are connected to the energy source uad that the steerable gear axles in. See well-known ¥ eis © bar- are stored _s that they are sui?

Steering of the transmission axes are connected to each other in such a way that the reactions that arise during the transmission of force are · = Moments between the steerable! Bearings of the drive assembly ■ and the chassis are lifted, so that especially with greater drive power does not disturb the steering wheel Forces and moments act on the steering system. Thereby the Yoraussetsung is created for that fixedly arranged in the vehicle Explosion-proof motors with fixed or stationary Cable connections can be laid between the energy source and the motors »

., The invention provides, according to one significant embodiment provides that only one drive motor is arranged, which _s a for each via a countershaft on two input shafts - works ". Rotatably mounted gear""This embodiment zeieb = f: net by low cost and a high efficiency W;, where the combination of a fixed drive =

[- 'motors with two steerable drive axles, each having a% transmission and the combination of these two gear up sur l · would take the counter-torque is an important feature,

% The invention includes the fact that two explosion-proof

u guided drive motor are provided and in per se

j; known way with vertical axis centric su Lenklagerra

'■■ - ■ - are arranged for the gearbox with the steerable legs'.

f. With this solution, separate assemblies are made easier.

«Which are partly made from elements fixed to the chassis

and aaderateils consist of gears arranged in the steering bearings. The invention generally provides for an expedient embodiment that in the chassis, adjacent, essentially at the same height? two Lageranordnimgen siad one hand executed for flanging the Hotore and on the other hand for receiving a steering bearing _e is expedient ia the Fahrgesteilteil with the Lageranordnungeo. at the same time a Fülirungslager for öi © steering shaft Torgesehea., which is equipped below this bearing © with transmission components, which is with at least one leakage of the transmission directly or indirectly in Eiagrdff. It is pointed out that the solution with two bearing arrangements for one steering bearing and one driving bearing also applies to the version with only one drive motor, whereby the drive motor can also be arranged with a horizontal axis, depending on the design of the yor linkage.

Each gear is advantageously designed with a Leaksahnkran ^ The gearboxes are expediently arranged in opposite directions ₉ and an intermediate gear is provided between the gearboxes. In one embodiment, the steering shaft can be connected directly to the intermediate gear * It is preferred, however, that the steering shaft is provided with a pinion ₅ that "meshes with the central gear" This means that the deflection of the leafe element corresponds to that of a steering wheel, for example a drawbar the intended direction of travel "The invention" also keeps in a special

Embodiment ¥ © r that the swivel castor is provided with buckets of heat «which directly or indirectly engages with a« Zalin ring »Hit simple means lets you arrange the cases on one side of the vehicle, for example for driver seat with side Fahrzeug® Sits at © iaer simple solution leads *

According to a special feature, one of the drive motors, or at least one of the drive motors in the case of ifenöTing, is at least one of the protected drive motors with a brake that acts on the motor shaft the battery attached «, Me invention still concerns eia _? that a drive motor · to! » electrical Bremsuag is carried out, while the sliding autr-iebsmotor is connected to a mechanical parking brake »

If the vehicle is designed with a height-adjustable,

if necessary also arranged on an extendable haste · ■ * ■■■ Load carrier (the invention includes such vehicles) is

according to a special feature of one of the internal engines with - ■ an additional one firmly attached to the vehicle frame? Transmission connectable, which is designed as a gearbox and äascaaltbar and with a Hubeinrichtun This eliminates the need for a special lifting motor.

If it is said above that the Lente? Elle is indirectly connected to the steering gear rings on the gears, it is not excluded within the scope of the invention that the gears are in a different way. leadership with another aa is "known Lenkmechanismiis example, a so-called Lenktrapes are verlstinden which is coupled with the gears, the steering characteristics -to improve.

In embodiments of the invention buttocks vehicle with a pedestrian at the advantageous vertical aageordneten steering shaft au the control head of the drawbar is an intrinsically safe circuit laid "are expedient in the chassis, the switching devices in eine® druekfesten box eacplosionsge · = · protects housed and" box of a entsprechenden'Anschluß fixed cable connections between the battery and the battery. or the electric motors, with the intrinsically safe circuit going from this box to the control head too »If a vehicle with a hell of a lot? is optionally provided on a load carrier which is also arranged to be extendable, a special explosion-proof rear motor can also be arranged in the chassis. _s for the expedient ^ a pulse control is provided, which works with little loss. The vehicle is only equipped with electrical drive means without the aid of auxiliary media for energy transmission such as Brucköl. The lifting motor acts on the load carrier and the mast through known mechanical devices.

In the above-mentioned arrangement, a connectable to a drive motor side drive for the linear actuator "is the possibility ,, electric switches for the control of this motor drive Znm hub, for example, for its connection to a pulse control, to couple with the (Jetrieföesehaltiaitteln"

But it is also reserved that the lifting motor with a Hj & r & ulikpuape for the hydraulic drive äer load bearing structure = group is coupled * G-es according to a angular spatial The chassis is divided into two in a row subdivided lying room sections, in the front of which the Bearings for the drive motor and the gear units as well as the steering axis in a horizontally running wall part and in the rear of which the battery is arranged » In the front section of the room there are also the Lift motor and the switch and connection boxes arranged

The invention is described below with reference to exemplary embodiments which are shown in the drawing

Fig. 1 i a stir-nansieat of an inventive

Vehicle in section lengthways, the line I - I in Fig. 2,.

FIG. 2 is a side part view in section along the line II -'II in FIG. I ₅

Fig »3 s a part representation corresponding to Figo 2

ment to explain another arrangement of the steering shaft.,

Pig »4 ₉

and 6ϊ top views of various arrangements

the ring gears on the gears and the alignment of the steering shaft ₉

Figo 7 s a plan view of a vehicle with a Lerik shaft raised to the side _? where _: s vehicle with a mast is shown,

FIG. 8 s a view corresponding to FIG. I of a further vehicle _f

FIG. 9 ° is a partial side view of the vehicle according to FIG. ₀ 8,

1 and 2 show a drawbar-steered floor conveyor vehicle with a vehicle = or chassis frame 1, ai

the rear of which is a hydraulically designed in this example - guided lifting device 2 for support rollers 3 under fork or <■

migen arms 4 is arranged, oils to the chassis via linkage means 5 ₉ S _t 7 are arranged vertically movable ₀ Such constructions are known , so that they will not be described in detail.

In the advantageous embodiment shown, swei space sections 9 _S 10 separated from one another by a partition 8 are arranged in the _{chassis frame 9} τοη which the space section 9 can also be seen in FIG intermediate wall are next to each other but spaced from each other two openings 12 _S 13 ,, provided at their edges bearing assemblies 14? 15 are either designed or attached »These bearing arrangements are used on the one hand for the frame = fixed arrangement of two drive assemblies 16 _t 17 and on the other hand to accommodate pivot bearings IS ₉ 19 for gear assemblies 20j 21 ο In these gear assemblies.j, which are thus in the bearings 18 ₉ 19 to a vertical axis rotatable = arranged ₉ are also the axes 2U _V 23 provided for steerable drive wheels 24 _S '25 * The transmission means for driving the axles are housed in the housings in a manner known per se »From the housings are up Drive shafts 26 ₉ 27 led out * which are coupled to the drive assemblies 16, 17 »These drive assemblies each consist of one

explosion-proof electric motor, which is flanged to the bearing assemblies 14 ₉ 15 by means of a häuseflansehes 28 "29" In a particularly advantageous embodiment, are housed in the module 16 ₉ 17 also brakes 3O ₉ 31 5 which are indicated schematically in the drawings and common in either a explosion-proof housings are provided with the electric motors or are also fastened in separate housings or frames «.

It is understood that at least one of the motors ₉ 16 ₉ 17 konneng be accommodated by special switching means "for example in one of the housing 30" 31 to the regenerative braking of the shaft may be designed. " so that an energy recovery is reserved. »The drawing does not show the brake actuation means necessary to carry out the braking« It can be assumed that these actuation means are housed in the supply lines to be described, where = · at for the brake engagement electrical actuation means ₅ d, h «with mechanical brakes lifting magnets or with a regenerative braking corresponding relay-operated changeover switches are arranged *

Toothed rims 32, 33 are arranged at the same height on the housings of the gear assemblies. These sprockets are in place by an intermediate gear 34 in engagement with one another

The illustrated arrangement of the transmission assemblies 20j 21 already shows that they are otherwise identical in design are arranged mirror-inverted so that the moments of heave when the drive τοη lift the permanently installed drive assemblies 16 j 17 against each other via the gear 34 «

In FIGS. 1 and 2, the intermediate gear wheel 34 is non-rotatably arranged on a Tertikai vertically guided steering shaft 35. This steering shaft can be mounted at 36 in the chassis below. It has a further guide bearing 37 in the horizontal partition H ₅ which is equipped with three bearings lying in a line.

In the example shown, a drawbar 38 with a known control head 39 can be pivoted at the top of the steering shaft 35 articulated The steering described so far has the Disadvantage that the drawbar deflection in the other direction than the intended direction of travel «By means of another, yet descriptive version, this can be avoided,

It should be pointed out that a two-way bond is not absolutely necessary. For example, the sprockets 32 ₉ 33 could be designed in the manner of a sprocket and connected by a chain in a corresponding manner «

- 11 -

ί Figs »1 and 2 show»! a © particularly favorable / i. Formation of the Fahrsemg structure «In the rear section of the room 10, the battery 40 is housed, while the front view of the room is above the partition wall 11.

solid box 41 accommodates for Sehaltgeräte ₉ in the Ka ^T st en or are arranged explosion-proof by running the Easterns ". For example, to the box further comprises a Ansehlußkasten 4-2 assigns eye ₉ which is advantageously carried out with so-called backup erhihter "go From this AnseöLußkasten smnächst solid abelver £ * bonds 43 ₉ 44 below the Antrie" bsbaugruppen 16 ₉ 17 uad ®iae more solid Ka "b © lTerbiadung 45 on a further explosion-proof motor 4G ₈ which is connected, for example, with an oil pressure pump 47» Due to the unspecified LeitimgsTerbiadungea this Puape is with © iaem special gate container. sox ^ ie with an oil motor 2 irerbunden "The reservoir kana also in the space portion 10 imtergebracat be _e It Y @ rsteht check that the mush 47 may be embodied as a hand-operated pump β *. ■ ·

A cable is through an opening 48 in general in the intermediate wall 8 49 to battery 40

Furthermore, the connection box 42 is a so-called intrinsically safe circuit 50 sum control head 39 ° in a known manner

Se are the currents and voltages in such an intrinsically safe circuit designed to be so low " that in the event of a cable break and damage in switches, which are accommodated in the control head 39, for example _? no ignitable links can arise,

Basically, with the arrangement shown, no reaction torque acts on the steering shaft 35 "because the torques from the drive shafts 26 ₉ 27 cancel each other out ^ if the direction of rotation of these shafts is selected to be opposite to each other"

The same applies, however, if according to Pig "3? In which otherwise identical parts are designated with the same reference _{numerals P} in which, however, the section through the front part is at the level of the steering shaft, an additional gear 51 meshed with the intermediate gear 34 the steering shaft 52 is arranged j which is also guided in the horizontal partition 53 land at 54 in the chassis _o The intermediate gear 34 is rotatably mounted in this Pail about a shaft journal 55, which in turn is mounted at 56 on the partition 53 and at 57 in the chassis .

In the Figo 4-6 different possibilities This was preceded by means of sprockets and gears discussed with ₉

is sent that the invention AUOH chain drives inco ~ pulls "To clarify the arrangement aind the sprockets to den'Getriebeeinheiten 20 _s 21 according to fig» 1 with the Bezugsseichen 32, 33 'denotes Under these sprockets are the respective steerable drive wheels 24 _S 25 recognizable , Fig * 4 corresponds to the embodiment according to Fig. 1, in which the steering shaft 35 is also wedged in the intermediate gear wheel 34, if, for example, the shafts 26, 27 are driven in the direction of the arrows drawn, counter-torques result according to the double arrows 58 _S 59 »These counter torques can be seen on the intermediate gear 34.» If this is rotated by the steering shaft in the direction of the arrow 60, the sprockets 32 rotate in the same direction in the direction of the arrows 6I ₈ 62 »

5 shows the embodiment according to 3? Ig _o 3 s in which the additional gear 51 meshed with the intermediate gear 34. In this embodiment, how easily recognizable is the steering deflection of the drawbar in the intended direction of travel relieved of any reaction torque of the drive »

6 shows a further embodiment also with an intermediate gearwheel 34 ₉ , but a gearwheel 63 meshes directly with the gearwheel 33, for example. that on a steering shaft 64

sits. This also enables direct steering with the steering shaft relieved of torque or a crossed chain drive «, the example after 3? ig» 6 is brought because, for example on a driver's seat vehicle according to Fig. 7 in two ways can, the steering shaft 64 on one side of the passenger body 65 next to a transversely arranged driver's seat 66 lead out. Thus, the embodiment according to the invention also offers this is also the prerequisite for an optional arrangement of the steering shaft with devices that are largely the same » arrangements »The steering shaft 64 is connected, for example, to a control lever 67, on which a steering head 68 can be provided with control switches «

The vehicle according to FIG. 7 is, for example, as shown schematically, designed with a mast ₉ whose posts are denoted by 699 70 and in which, for example, rope pulleys 7I ₉ 72 of a lifting device not shown in detail are arranged "In this context, 'kJöim.exi other means, such as spindles or pneumatic lifting devices used» portable low-G on the mast guided Laatträgers 73 with 74 ₈ 75 In the embodiment of Fig, 7, the non-driven wheels of the vehicle when 76j 77 arranged «"

- 15

In FIGS. 8 and 9, the same ropes as in FIGS. 1 and 2 with the same reference rope "labeled" remain reserved to equip such a vehicle with a mast. Compared to FIGS. 1 and 2, however, the drive shafts 26, 27 are connected to a gearbox 78. This gearbox thus has two drive shafts ₉ which are formed by the yokes 26, 27. The drive shaft 79 is connected to an explosion-proof motor 80 which is arranged on the intermediate wall 81. According to the explanations: for Fig. 4, the shafts 26 ₉ 27 can be driven in opposite directions of rotation,

This version meshes with the intermediate gear. 34

laterally somewhat offset gear 82, but basically that corresponds to gear 51 in FIG. 5 and the steering shaft 83 carries, which is raised to the side next to the shaft 79 »

Claims (14)

Jungheinrich "" - λ Unternehmensverwaltung KG. ". A, 294f) Q / i * 3f) £ C7 / 'Junghe i nri ch ί Ξ a mjb u r g 2a Lawyers' files: 2886 visual claims 1. Industrial truck with two steerable drive axles each with a gearbox and at least one drive motor and an energy source for these drive motors, characterized in that at least one explosion-proof electric motor (16, 17-80) is rigidly attached to the vehicle frame (1, 11, 53, 81 ) is attached and connected to the energy source (4-9) by static power connections (45 _s ^) and that the steerable gear axles (20, 21) are rotatably mounted in a manner known per se and by means (32, 35 _s 3 ^) are connected to one another and to a steering shaft (35-52, 64, 83) for common steering, the steering devices being arranged in such a way that the reaction torques of the drive shafts (26) cancel each other out in them. 2. Vehicle according to claim 1, characterized in that a drive motor (80) is provided and is connected to a gear (78) which drives the two drives (26 ₉ 27) for the gear (20, 21) of the steering · = and drives drive wheels. 3 * F «Ars et! G according to claim. 1, thereby gekens.seicb.ii@t _? that / [M two electric motors © (16 _S 1?) in an Sieb, known Weis © with a vertical axis ζentrisch au -Iienklagera (18, 19) for the gear (20, 21) with the steerable Eäö @ ra (24, 25 ) 'are arranged * 4. Vehicle naefa. Claim 1 and 3 * characterized? that in the chassis (1, 11) adjoining essentially in the same height sw © i Lag@i?aanahm^aaiiB.geB (14 ₉ 15) on the one hand, also flanging the motor © (16, 17) on the other hand. Reception ^ e of a steering bearing (18 ₉ f. leads are » 5 «lalirseug according to claim 4 _S characterized in öaß in the chassis part (11) with the bearing assemblies sugleicfe a guide bearing (37) for the Lenlwelle (35? 52, 64 *) is provided" beneath this bearing with gear means (34 · " 51-63) which With at least one steering track crane (32, 33) «Äer G © tri® ~ (20, 21) middle or middle-base? is engaged. 6 "Vehicle according to claim 1, characterized in that each transmission (2O ₃ 21) is designed with a steering gear crane (32 _?. 3") 7 «Vehicle according to claim 6, characterized in that the & gears (2O ₉ 21) are arranged in opposite directions and between the Zabnkränssen (32 _S 33) ei & gwiselieiisatarad (34) is arranged _e 8. Vehicle according to claim 7 ₉ characterized? that the leak wave (35) is wedged directly on the Zwischenaahnraö (34). 9 «Vehicle according to claim 7 _5, characterized in that the steering shaft (52) is provided with a pinion (51) ₉ which meshes with the dual gear wheel (54)«, 10 "Vehicle according to Inspruch S ₉ characterized ₉ that the steering shaft (64) is provided with a pinion (63) which directly or indirectly meshes with a toothed ring (32 _S 33)" lie vehicle according to one of claims 1 · = ■ 10 _? characterized = ₉ that at least one explosion-proof drive motor (16 ₉ 17 _s 80) is combined with a brake9 that acted on the motor shaft 12ο Vehicle according to claim H _9, characterized ₉ that at least one motor (16 ₉ IT ₉ 80) is designed to be regenerated into the battery * 15 »Vehicle OK. Addressed 11, by gekeons@iclm.et that eia drive motor (16) snr electrical braking performed and with the other drive motor (1?) elae ieehanisclie Brake © (31) "rerbixadea is« 14. Vehicle according to © in @ m of claims 1-11, ait sinöm that a drive motor with iron second set sieves biadbas is designed as a manual transmission and optional eiaschaltbas? is and. with a hat together"?! rkt « Vehicle according to one of claims 1-3 and 11 = * 14, da-; .- by gekeanseichnet that facilities star, common Steering of the transmission axles from a known Lenkfcra- 4- p © z exist * Vehicle ns.ch eiaea of claims 1 - 15s thereby ge germseichnet that at des? vertical leak% felle (35) aa sicli known tit is a drawbar (38) and % n the control head (39) of the drawbar is an intrinsically safe circuit (50) is laid. 17 · Fahrzeng according to © iaeia dor laspriiche 1-15 as a driver's seat vehicles characterized ₉ that the sideways L © akwelle (G4) aeben, a lafarersits (66) is in order » lalirseus according to, claim 16 or 1? _Φ thereby. g @ k © iam offer ^ that the holding devices in the chassis. in the ®i & «dsuckfestes. Box (4-1) e% plosio: & sgS3 © With & t accommodated uod a corresponding lüsslilußkastea (4-2) solid fertilizers (^ 3 * ¹ W-? ^ 9) av.r battery (40) and gu dem or d @a electric motors (16, 1?) are tm &. you own this Sastea circuit (50) to the control head (39) 19 «Sata? Stuff aacli lasprucii 17 ₉ string eiae® heights. * B @ ^? @ GLich®a. "beaeafalls aa © inern ausfatomaren mast aageordn @ tea dadurcli g @ k © nnaeic] met that in the chassis @ia © splosioasgescMtster lift motor (46) is arranged» 20 «vehicle aacii Aasprucli 1S ₂₁ thereby. gek © xmz © ieto @ t ₉ that for the hoist motor a pulse control is forgesekeä 1st uad from «» seh lastlicii electrical drive means arranged siad ^ iao- "bsi the hoist motor through," bekssat® meelisBisoii® biscuits on the load carrier uad / @ the mast works » β ^ alirseug aach. Proclaim 18 ₉ thereby. g © k © im.s © icha © t _s that the Eob motor (46) is coupled with a hydraulic pump (W) & among other things the drive of the load bearing assembly © « ■■ 22 β Isjaraeug after address 1? ₉ thereby g @ k © anseieka <st ₈ d & E the j: chassis (1) in stiel hiafeörei & other li @ g © && @ Raissab « sekoltte (9® 10) ■ aatex 'is divided «, ia whose ψ © τ (ϊ <βτ®έ. (9) die; ■. Lagönmgea (14-, 15) for di © iatfietssaotore (16, 1?) tmä die <3retr ± 8b @ © ± aii © it © n (2O ₉ 21) as well as di © LsÄaehse in eiaea Säsrisontal verlaufsadsa Wanätell (11) and la (10) di @ battery (40) aag ο laiiraeus aacSs. Aasprueh 21 ₉ datorcla. g @ k © mig © i © la © t ₉ daS ia Esmmsibselmitt (9) the Htibaotos? (46) yad di® retention in the AnscXO uS boxes (42) arranged siasL