DE7512469U - ELECTRIC PULLING AND PULLING DEVICE, IN PARTICULAR FOR LIFTING AND / OR TILTING LOADS - Google Patents

Description

PATENT ADVERTISER DIPL.-PHY5. HEINRICH SEIDS

62 Wiesbaden-BierstadtBierstadterHöhe 15Fosifadt 12068 - Telephone (06121) 565382 PostsAeck Frankfurt / Main 181008 - Bank Deutsche Bank 3956372 ■ Nass. Sparkasse 108003065

Wiesbaden, January 7th, 1975 Z 437 S / Pd

ZSUer tipper GaOsSL
Mainz-Laubenhela
Hans-Z5Uer «Strasse 50-60

Electric pushing and pulling device, in particular for lifting and / or tilting loads

The invention relates to an electric pushing and pulling device, in particular to »lifting and / or tilting Loads, for example from containers for the purpose of emptying them, with a threaded part driven by an electric motor, which is fixed in a counter-winding on a relative to the electric motor against rotation, but can be axially displaced Element, in particular pushing and pulling runs

IUr emptying devices for containers, especially HUH vessels, tilting devices of various structures and different modes of operation are already known. So had For example, you already have the drive from the automatic tilting devices for mill containers on mill transport vehicles

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! Diploma in Phys. HeüiriA Seids · Patent Attorney · 62 Wiesbaden -'Oierstadfer Hone 15 · ίostfa & T 120 68 · ® (06121) 565382 -2-

! fetor of Millabfuhrwagens, in particular derived from the drive of the nilfArdersehaeeke · and a aeohanlsehes transmission is provided for Hochklppen the minor vessel in the a: engage position and for discharging amu deflated QEF & sses in the j second position (DT-PS 478 438). People dismiss the fact that in these known devices, the prime mover of the Hillabfuhrwagena must be running constantly, it 1st disadvantageous in the mechanical transmission for each emptying once in one direction and engage ^ ° n "in the second position to measure. A particular disadvantage here is that the mechanical gear must be switched over when the vessel is in the upper tilted position. In addition, an automatic or semi-automatic control of such budget emptying devices is hardly conceivable.

Tilting devices have therefore been preferred for emptying devices provided with pressure medium operation, be it pneumatic or hydraulic type. Such pressure medium systems offer practically all iteration options. Bb are pressure fluid tilting devices of various structures are also known, for example more or less directly on oscillating piston units attached to the swivel shaft of the tilting frame (DT-PS 642 472), old axially displaceable piston j

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^! Diploma in Phys. Heinrich Seids · Patent Attorney · 62 Wiesbaden - "Oierstadier Höh'e 15 · t ostfääi 120 68 · & (06121) 565382

J trained tilting devices in which the piston is a

j twisted HSLUe with screw groove (DT-PS 842 473)

j and tilting devices, in which an axially movable «

Ϊ!

One or two sides to be acted upon with pressure medium \ the piston moves a gear rod axially, this; Gear rod can be designed as a rack, for example

j can, and in a ge-I on the pivot shaft of the tilting frame , sets · «pinion grütft (DT-PS 953 953) ·

\ For all tilting devices operated with pressure medium

But ι inevitable the presence of an extensive normally and \ elaborate pressure fluid system · The pump part% j such Druckmltteleysteme is in garbage trucks usually this means to dl "drive" rail vehicle hitched · j that the prime mover of the MUllfahrzeuges run in hydraulic systems must also , if

; Containers are to be emptied. This is also the case with pneuma-I table systems are practically indispensable because the compressed air— » j stock of such a system is applied very quickly.

I.
A major deficiency of the known pressure fluid systems is

But i is primarily in the fact that lubricants and hydraulic pressure media are used in every case to do this

j tend during operation cause more or less from the Kippvorrichtr _s '' ozutropf s, and thereby dirt Umweltveri. In addition, buses pressure means are renewed from tent to time, which is associated with considerable costs.

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Diploma in Phys. Heinrich Seids · Patent Attorney · 62 Wiesbaden · Tfierstadt'er Höhe 15 · PostfaeV 120 66 · ® (06121) 56 5382

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Ready SLekwo push and pull gates are also known has become "one of the parts of the motor rotating relative to each other", especially the rotor, a with a threaded spindle connected to yourself again in a sleeve ait Ixmenc nrinde runs. This! Fillse old internal thread is however compared to the stationary motor part held against rotation, but axially displaceable. When the engine is running in the In one direction, the threaded sleeve is pushed away from the motor by the threaded spindle, and when the motor is running pulled in the other direction towards the engine. Dor construction of these known electric pushing and pulling devices conditionally Eber a relatively low level of performance, and before all »also a relatively large overall length compared to the achievable stroke length.

On the other hand, it is the object of the invention to create an electric lifting and pulling device which is also suitable for emptying containers, especially for emptying garbage containers in hUllsaaaelwagen, and which is suitable for this through simple, co-compact, but generally rough Operation-insensitive construction, simple, safe control and relatively noiseless operation with high performance are characterized by efficiency

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Dlpl.-Phye. Heinrich Silk - Patent Attorney 62 Wiesbaden Bierstadtet Höhe 15 - IWfIdi * 120 68 * ® (06121) 565382

This object is achieved according to the invention in that xOerelae of the parts of the Electric motor directly carries the thread, and even on or in the counter-thread bearing, with respect to the second motor part held against rotation, but axially displaceable element runs.

The device according to the invention is practically independent of its use or operation. Sia can be provided on stationary systems, just as well as on garbage trucks. In the latter case, the system is also practically independent of the type of vehicle drive. It can therefore be used just as well in vehicles with old electric drives as in vehicles with fuel drives. Since neither a hydraulic nor a pneumatic system is required, there is also no risk of products that pollute the environment being able to drip off from such a system. As has been found, the noise level with a device according to the invention is considerably lower than with the known devices. a »very small fraction (mostly ax a few · Io)! the self-tightening process eianiamt. Sas emptying of containers can be done when the vehicle is turned off

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Dipl.-Phys. Heinrich Seid «· Patent Attorney · 62 Wiesbaden · ßierstadter Höhe 15 · P.O. Box ¹ 120 68 · ® (06121) 565382

· Finally, the tilting device can be operated from either side of the drive · However, within the scope of the invention, a switch box will be required. When using the device gemfiii the invention of driving Eugen could possibly ea ratsaa "one to interpret the old the rocker additionally charged vehicle battery something grSeser · Possibly the alternator of the vehicle could be construed big ·

One could initially aimehswm that / oSreh batteries « especially Sanaelbatterien, BitZunehaeade electricity - scorching is not enough to empty containers to use. In fact, it turned out, surprisingly, "that" the amount of electricity carried for this purpose fully sufficient, and the degree of effectiveness of such a tilting operation compared to that of the known devices

even improved 1st · ■

In a preferred embodiment of the invention is the slectro | motor trained with Trt py 'i fiu fer »^ 5 n * r this Tfinyriflmifer J

runs with a central inner winch mot the StpliwHei calf of the pushing and toothing element

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DlpL-Phye. Helnri * Seids · Patent Attorney · 62 Wiesbaden -'Blerstadter Höhe IS ·? Ostfadi 12068 · & (0 6121) 56 5382

Bin · ftolch · device is self-locking or self-locking. Should the electric current 2Or die while you have your belongings If the pushing and pulling device fail, this device remains in the respective position. A powerless falling back, especially falling of a tilting frame «old or without a container to be emptied attached to it is practically impossible.

An embodiment of the invention in FIG Application in a · »slewing drive in which the push and pull element old a rack rod that engages in a pinion set on the shaft of the swivel drive is formed.

The invention also offers the possibility of ice robust, against disturbances practically insusceptible structure · * ,, like him for tough operation, for example when emptying Generally speaking, the aim is · This can be, for example the stator of the electric motor as part of the Gebtriebegehäuaea rigidly attached to this mine.

Ice * second, particularly »advantageous · AaafEHiruaggform Invention, see in particular la Ayt of a push and pull cylinder Let use, provides that the electric motor with Aassenliufer, and this Aussenlaufer

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Dipl.-Phys. Heinrich Seicb ■ patent attorney ■ 62 Wiesbaden · blerstadret HoHe 15 · PostfaOf 120 68 · & (06121) 565382

carries an attssang wall with which he is in a corresponding with Internally threaded push and pull cylinder runs, while the stator of the electric motor in the push and pull cylinder secured against rotation, but is guided displaceably in the longitudinal direction.

The push and pull cylinder can also be equipped with a guide rod arranged coaxially and secured against twisting be equipped for the inner stator. So that is the Electric motor arranged inside the cylinder like a piston, but not any pressure on the side of the torus picks up, but in which the piston rings are set in rotation by the motor, and thereby in the internal thread of the Cylinder and adjust the motor axially in the cylinder.

In a further Auführungeform of the invention, the stator of the electric motor is formed with but an axial length that the axial length «of the runner plus the desired» ib length corresponds, and has a fixed thread part with respect to the stator, in bxw. on which the rotor of the electric motor is guided with a counter thread. Xb of this AueXührungsfora the invention moves the rotor axially Ialb des Stator «while it is 1» rotated. So that extends

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Diploma in Phys. Heinrich Sdds · Patent Attorney · 62 Wiesb & oöi -'EierstadierHöKe 15 - Fostfkäl 12068 · & (06121) 565382

is aar stator of ElelctroBOtora upper -lie entire length be practically the Csrindeteilea "in which or on which the L is guided shore, and this threaded portion can then dently or pinned against rotation axially displaceable fpunmg now at all secured to the stator with the stator. In this way, a significant simplification in terms of guidance and fastening method for the part carrying the thread is achieved. For example, in this embodiment of the invention, the stator can be designed in the form of a cylinder tube equipped with an internal thread with a plurality of field windings placed on the outside of the cylinder, while the rotor is guided as a piston-shaped internal fan with an external thread in the internal thread of the cylinder tube. It is not necessary to continuously supply all field windings with excitation current.Rather, the field winding is assigned a switch that scans the current position of the rotor and a circuit arrangement by means of which only those field windings are switched into the excitation circuit that are in the vicinity of the respective piston position lie. In practice, this means that practically always two neighboring excitation windings are switched into the excitation circuit.

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Diploma in Phys. Heinridi Sods · Patent Attorney - 62 Wiesbaden residents! - Fejerstadter Höhe is Postfach 12068 ® (06121) 565382

In the context of the invention, it is of particular importance an advantageous, the efficiency of deafiotors not disadvantageous Provide influencing axial support of the parts of the motor rotating relative to one another · Particularly advantageous it is for this, the running of the electric motor by means of Axlal-Cfucklager, preferably axial-Radlal-thrust bearings, at its ütafangsbereich on the stator in both directions

k · The axial radial thrust bearings can be used as | Rolling bearings with non-magnetizable I & Lzlagerkorpern, for example made of plastic, preferably be formed on Polvamidbasls.

The electric motor itself can be designed as a commutator motor, for example for medium or low speed. When

! If the device is used in a vehicle, the motor can be connected to the vehicle battery via control switches, which in turn is charged in the usual way via a regulator from the vehicle's alternator. In order to prevent one or the other end position from being deformed and thereby wedged or blocked due to excessive penetration of oils into one end position, it is particularly advantageous within the scope of the invention if axially resilient end position buffers are provided for the moving threaded part within the scope of the invention also possible

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! Diploma in Phys. Heiniidi Scids · Patent Attorney · 62 WiesbAfeh - "ffierstadft * HoHb 15 · FbstfSäf 12068 · ξ? (06121) 56 S3

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axially compliant relative to mount the one of the two drehdn parts of the electric motor relative to each other of the other, and this elastically resilient mounting * ιν in the force path of the train · ηΔ - ^ h v * τγΙ frfrtung elnzubeziehen · This is not only an effective Endlagenpuff ert & ig ersielt _β but also an elastic overload resistance, which is particularly advantageous in conjunction with an overload switch. For example, the bit can be fitted to one of the threaded parts of an internal rotor of an electric motor in a cage-like tube inside the armature: made of non-magnetic material, axially displaceable and axially aligned with respect to the stator by means of two opposing buffer springs, possibly adjustable in their preload . In the event of an overload or when the device enters one or the other end position, the rotor is then axially displaced against the stator against the action of a spring; pushing · The efficiency of the motor is then reduced so much that the axial displacement movement is absorbed with greatly reduced force. It is particularly advantageous to provide a limit switch or safety switch that responds to overload. For example, an electronic overcurrent switch connected to the motor circuit can be used for this purpose.

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Diploma in Phys. Heinridi Seids · Patent Attorney · 62 Wiesbaden · Bierstadter Höhe 15 · Postfadi 12068 ■ ® (06121) 565382 j

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Some exemplary embodiments * of the invention are explained in more detail la following ί with reference to the drawing. ^:

FIG. 1 is a provided for each ei drain tipping iiit electric thrust ^and: traction device genäse dor invention in side \

view,! partly skinned; ί

FIG. 2 shows the motor part of the device according to FIG. 1 in ' enlarged representation, axially sectioned; j

Fig. 3 shows a device according to the invention in Art

an electric push and pull cylinder, axial; cut;

FIG. 4 shows a detail modification compared to FIG. 3 "axially
cut;

Fig. 5 shows a device according to the invention in Art
an electric push and pull cylinder in a further embodiment, axially cut and

6 shows a device similar to that according to FIG 1 and 2 cut axially in a further embodiment.

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Dipl.-Phys. Heinrich Seid «· Palentanwalt · 62 Wiesbaden ■ Blerstadter Höhe 15 · P.O. Box 12068 · ® (06121) 565382

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The example of FIG. 1 concerns a tilting device ait elnea electric motor 1 "whose housing 2 is placed on the Oehau" 3 a pinion 5 attached to a 4 swivel shaft 4 to transmit the power from electric motor 1 to the pinion 5 a transmission rod 6 is provided, the la upper. Within the electric motor 1, axially movable part is designed as a threaded spindle 6a and the lower part 6b that moves past axially aa pinion 5 is designed as a rack that engages in the pinion 5. The toothed rack part 6b has a rectangular or approximately square cross-section and thus runs in the Zahnstmiganutthrung 7, secured against twisting, around the gear housing 3.

As can be seen from Figure 2, is in the motor housing 2 of Stator 9 of the motor * 1 installed. The stator 9düMict la can also be formed inside the housing 2. In the Stator 9 iat the field winding 10 of the motor in the usual way 1 inserted.

The runner 11 of the hotor is at its frontal Uafangabeichen aittels

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Dlpl.-Phys. Heinrich Silk · Patent Attorney · 62 Wiesbaden · Bierstadter Höhe IS · P.O. Box 12068 · QP (06121) 565382

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The end walls of the bearing housing * 2 are supported, as shown in FIG. 2 by the angular contact ball bearings 12 and 13. Since these roller bearing combinations are in the areas of the strongest magnetic flux from the stator 9 to the rotor 11, it is advisable to manufacture the roller bodies 14 from non-magnetizable material, for example plastic axil polyanld base. Likewise, the cages of the roller bodies should possibly also be made of non-magnetizable material.

The rotor 11 is generally occupied by a rotor winding, as shown, and has one on its upper end face Collector 15, to which carbon brush 16 is assigned in the usual way are.

Axially extends through the rotor 11 and the collector 15, a central bore 17, which at least on part of their has an internal thread 18 extending in the length of the rotor body. The threaded spindle part is in this internal thread 18 6a of the drive rod 6 out.

The mode of operation of the tilting device according to FIGS. 1 and 2 is like follows j

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Dipl.-Phys. Heinrich Silk · Patent Attorney · 62 Wiesbaden · Bierstadter Höhe 15 · P.O. Box 12068 · ® "(0 6121) 565382

If aar motor 1 is switched on to “a“ in the direction of rotation ”for example clockwise rotation”, its rotor 11 sees the sä tooth ridge part 6b axially sliding but secured against rotation guided gear rod 6 with its threaded spindle part 6a in the illustration of FIG. 2 upwards, as shown in FIG 1 and 2 is indicated by the arrow 19 · Here, the crack * 5 la direction of the arrow 20 (Figure 1) is rotated. This rotation is transmitted to the shaft 4 and from this to the tilting frame. To limit this upward movement, limit failures and overload switches can be provided in the electrical switching arrangement for the motor 1. Such limit switches can be operated, for example, by the gear rod 6, the pinion 5, a cam arrangement attached to the pivot shaft 4 or the tilting frame. Overload switch is preferably provided as an additional safety device that responds as soon as the VOB motor 1 consumed current exceeds a predetermined value.

Below the voa pinion 5 as directed against the arrow 19 Reaction force on the load transferred to the gear rod 6 is supported by the rotor 11 via the lower axial-radial bearing combination in FIG. 2 13 on the lower end wall of the motor housing «2. Since the motor housing 2, as FIG. 2 shows.

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Dipl.-Phys. Heinrich Seid? Patent attorney 62 Wiesbaden Bierstadter Höhe IS PO Box 12068 ® * (06121) 565382

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set directly on the gearbox housing, there is a safe, unambiguous frictional connection within the tilting device.

For the downward movement of the jogging rod against the arrow, the motor must be switched on in its second direction of rotation. Then, the Geytriebestange is screwed 6 to ikrem Uevindespindeltell 6a by the internal thread 18 of the rotor 11 downward "\ The hereby transmitted from the pinion gear 5 and, now la direction of the arrow 19 reaction force acting is then through the upper axial-radial roller bearing combination 12 to the upper end plate of the motor housing 2 trimmed * The frictional connection then runs over this upper end plate, the motor housing 2, whose lower end plate in turn on the gear housing. To bej limitggg the downward movement of the gear rod 6 can

j wlederos. Limit switches may be provided, the above mentioned

Circuit breaker also operate the motor 1 In this second Direction of rotation take effect in the event of overload.

To support and relieve the guide device 7, it is recommended within the scope of the invention that the teeth of the pinion 5 in the transverse direction, ie axially zisa pinion »spherical νόβα. the ten · of the Zahnataagentailes 6b ta transverse direction correspondingly nuldenfSrsig tmezvibt 1 Λ ψψ ^ έ Hereby the το “pinion 5 ” of the rack part 6b acts.

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Diploma in Phys. Heinrich Seids - patent attorney ■ 62 Wiesbaden ■ Bierstadter Höhe 15 - P.O. Box 12068 · ® (06121) 565382

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Kraft (load) is the sense of a mutual alignment of the

Teeth, so that the rack part 6b

under load, and increasingly with increasing load, is held against twisting.

If the power supply to the motor 1 is interrupted during operation, be it in one or the other direction of rotation of the Länlwm 11, for example due to the response of an overload switch or a gear switch, the gear rod 6 is self-locking or self-locking effect of the thread secured on the spindle part 6a within the internal thread 16 against any further axial movement. The tilting device thus remains in the current position, namely also in any intermediate position. This is of considerable advantage over all of the known tilting devices explained above, since in particular it cannot happen that the tilting device with the raised container to be emptied can fall down if any device part fails. Above all, the tilting device is secured in a self-tensioning manner at its upper Ita control point. However, if you want to provide the option of manually operating the tilting frame, that is, without operating the motor 1

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Diploma in Phys. Heinrich Sehls patent attorney 62 Wiesbaden Bierstadter Höhe 15 Postfadi 12068 ® (06121) 565382

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to move grains, this can be done by an additional between the pinion 5 and the pivot shaft 4 effective coupling

ItOBg «which is normally pressed in,

and can only be printed out for any movement of the tilting frame from ad jzeltveise · This coupling should iann

However, be designed so that they only engage in a single position of the pivot shaft 4 with respect to the pinion 5 leaves.

The example of Figure 3 is the electric push and pull device genäse de? Invention in the manner of a push and. Pull cylinder ■ formed. The electric motor 2i runs in this example in Inside an actual cylinder 22 with an internal thread 23.

\ The motor has an outer rotor 24 is fixed on the circumference surface of the inside thread 23 of the cylinder 22 running outside thread 25th The inner stator 26 of the motor 21 is attached to the inner end of a type of piston rod 27 which has axial grooves 28 on its outer surface and which is guided with these grooves in wedge-shaped projections 29 of the cylinder cover 30 for additional feeding of the motor 21 and the piston rod 27 the cylinder In the example shown, a coaxial cable that is not necessary in principle, but improves guidance! Guide rod 31 with axial outer grooves 32, into the corresponding

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Diploma in Phys. Heinrich Seids · Patent Attorney ■ 62 Wiesbaden · Bierstadter Höhe 15 · P.O. Box 12068 · ® "(06121) 565382

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Corresponding inner projections 33 on the rod passage of the stator 26 a-j engages. The guide rod 31 extends sie in a coaxial Kittel bore 34 of the piston rod 27 and is in the cylinder bottom 35 attached.

The Iraaenistator carries on the side facing away from the piston rod 27 26 a collector 36, above the brush assemblies

37 of the outer rotor 24 laxify. The strobe supply takes place

Lim shown example preferably by the piston rod I 27 through, as indicated by the dashed lines 38

! is indicated.

The external rotor 26 is in the example shown by means of 'Axial-radial thrust bearings 39 supported against the inner stator 26, which can be designed essentially in the same way as in connection with FIGS. 1 and 2 j has been written.

When applied to the motor 21 old electricity via the lines

38 turns aich, ^ e according to the selected stroke direction, the outrunner 24 in one direction or the other, including the interior

I stator 26. Depending on the direction of rotation selected, it changes

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Diploma in Phys. Heinridi Sods · Patent Attorney · 62 Wiesbaden · Bierstadter Höhe 15 · Postfadi 12068 · <g "(06121) 56 53

while the Aassenlll ^ f er 24 either in the direction of the cylinder " cover 30 or the cylinder base 35 ″ with the piston rod 27 either pushed out of the cylinder 22 or into it is withdrawn. The effect of the electric motor 21 can be compared with that of a solenoid, but with the difference that no pressure is exerted on the end face Kediuos, but the screwing of the interlocking Thread 23 and 25 causes the axial displacement.

In the example in FIG. 5, a plurality of field windings 44 are placed close to one another on the outer side of a cylinder tube 42 equipped with an internal thread 43. These field windings 44 take up practically the entire length of this cylinder tube 42. This length of the cylinder tube 42 is essentially determined by the axial length of the motor rotor 46 plus the desired stroke length of the device. The cylinder tube 42 is aueeerdem made of nonmagnetic material, for example made of stainless steel, and can _f since it is stabilizeer axially through the field windings 44, be relatively thin-walled. This arrangement can itself still be arranged within a cylinder housing 51 which is closed off by the cover 50 and the base 52. The inner runner 46 is located within the cylinder tube 42

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EHpl.-Phy ». Heinrich Seid «· Patent attorney · 62 Wiesbaden · Bierstadter Höhe 15 · P.O. Box 12068 · ® (06121) 565382

Sitting QeaMss Figure h the Innenltufer 26 of the motor "21 limitedly axially displaceable but against rotation fixed to the lower end of the piston rod 27. The piston rod 27 has for this purpose at distances from the motor 21 each have a collar 61 and 62, Ewischen the respective collar 61 or 62 and the inner rotor 26, a compression spring 60 is used. This gives the electric motor 21 placed in the manner of a piston on the piston rod 27 in its entirety the opportunity to move axially against the action of one of the springs 60 on the end of the piston rod 27 to a limited extent when the piston rod 27 is used to move an oversized laser . Microswitches can be arranged between the motor 21 and the collars 61 and 62, which switch off the motor current via a circuit arrangement as soon as the axial displacement of the motor £ 1 on the end of the piston rod 27 exceeds a predetermined amount.

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Dipl.-Phye. Heinrich Silk · Patent Attorney ■ 62 Wiesbaden · Bierstadter Höhe 15 · Poetfach 12068 · fip (06121) 56 S3

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arranged in the manner of a piston, and old an external thread 45 out. The inner race 46 is connected to a piston rod 47 via axial thrust bearings 59. In this example, power can also be supplied via the piston rod 47 and “ic” between the piston rod 47 and the internal rotor 46, the collector-Bür star arrangement 56, 57 that is effective. Each field winding 44 is assigned an unpressurized pushbutton switch 41 in order to determine the position of the internal rotor 46 and to excite only the field windings adjacent to the rotor position via a gearbox.

In this example, in the housing base 52 and the housing »cover ¹ 50 resilient τ & η / η» g »n pM * *» r «are used, as indicated at 46 and 49 is not required in this embodiment · If electrical lines are routed through the piston rod 47, "the usual fastening of the piston rod with its eye on a driven machine part" is sufficient to secure these electrical lines sufficiently.

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Dlpl.-Phys. Heinrich Seid «· Patent attorney ■ 62 Wiesbaden ■ Bierstadter Höhe 15 ■ P.O. Box 12068 ■ & (06121) 565382

The example in FIG. 6 shows the basic structure of the device according to Figure 1 and 2 assumed. However, inside the Stator “9 a tube 65 made of non-magnetic material”, for example VA steel, attached in the manner of a cage, in the interior of which the inner rotor 11 is guided axially displaceably by means of a bush 66. The socket 66 carries in this Example the two axial roller bearings Ijfcin those of the rotor rotatable, but is held firmly within the bush 66 against axial displacement. The socket 66 is between two compression springs 67 and 68 held. The bias of these springs 66 and 66 can be adjusted to a desired value by means of screw rings 69 Preset vert. The stator 9 itself is firmly attached inside the housing 2 against axial displacement. In this Embodiment of the invention is automatically approached smoothly » because any start-up stagnation when the Electric motor is caught by the springs. A jamming or blocking of the device or the Got drive rod 6 is impossible, because with increased resistance of the gear rod 6 against axial displacement, a corresponding axial displacement occurs of the rotor 11 occurs against the action of one or the other spring 67 or · 68 · For example, moves

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Dipl.-Phys. Heinrich Seids · Patent Attorney · 62 Wiesbaden · Bierstadter Höhe 15 ■ Postfach 12066 · & (06121) 565382 j

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a container discharging apparatus of the internal rotor are in a locked pivot arm in its threat against spring force in decision \ opposite direction from atm magnetic field and stays on eineifl point at which the pick up by the movement of the rotor from the magnetic field reduced motor force and the spring force of each other . In this embodiment, it is expedient to provide an overcurrent switch for switching off the motor 21, which then responds when such conditions occur. These additional devices thus offer both overload protection and protection against excessive movement into the end position.

All in the description, the claims and the drawing reproduced characteristics of the object of the notification alone or in any conceivable combination of essential importance for the invention.

—Patent Claims—

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Claims (1)

Diploma in Phys. Heinrich Seids · Patent Attorney · 62 Wiesbaden · Bierstadter Höhe IS · PO Box 12068 ■ ® "(06121) 565382 - 24 - * Electric push and pull device »especially for lifting and / or tilting tob loads, for example of containers purpose · their emptying, old one »of an electric motor driven threaded part »which is held in a mating thread on a respect. dee electric motor against twisting, but axially displaceable element »especially push and pull at least element is running, characterized by »oasis / the one (11» 24) the parts of the electric motor (1 »21) rotating relative to one another directly carry the thread (18» 25) »and themselves on or in the “be” bearing the mating thread (6a, 23) with respect to the second motor part (10, 26) against rotation held, but axially displaceable element (6 »22) runs. 2) Device according to claim 1 »characterized in that the electric motor (1) is designed with an internal rotor (11), and this inner rotor (11) with a central internal thread (16) from the Spindelgerclnde (6a) of the thrust and Tension element (6) runs. / 25 7512469 6/15/78 ! Diploma in Phys. Heinrich Ssids Patent Attorney 62 Wiesbaden Bierstadter Höhe IS Postfach 120 68 if (0 6121) Su 53 82 ! - 25 - j 3} Device according to claim 2, used in a swivel drive, characterized in that the push and pull » element (6) with an in ela on the shaft (4) of the swivel drive set pinion (5) engaging rack (b) is formed. 4) Device according to claim 2 or j, characterized in that the stator (9) of the electric motor (1) as part of de3 gear housing (2,3) stan * is attached to this. 5) Device according to claim 2 or 3, characterized in that the rack (6b) with a substantially rectangular Cross-section formed and axially displaceable in a sliding guide (7) old corresponding cross-section, but against Secured against twisting in * the gear housing (3). 6) Device according to one of claims 2 to 5, characterized in that that the tooth «of the rack (6b) is crowned in the transverse direction and the teeth of the pinion (5) in Transverse direction are correspondingly trough-shaped or vice versa. / 26 7512469 6/15/78 DipL Phyi. Heinrich Seid »· Patent attorney ■ 62 Wiesbaden · Bierstadter Höhe IS · PO Box 12068 ■ ^ (06121) 565382 «26- 7) Device according to claim 1, characterized in that let the electric motor (21) be designed with an external rotor (2A), and this outer runner (2.4) has an Auesen thread (25), with which it runs in a push and pull cylinder (22) seen with a corresponding internal thread (23) ▼, while the The inner stator (26) of the electric motor (21) is held against rotation in the push and pull cylinder (22), but is guided displaceably in the longitudinal direction. β) Device according to claim 7, characterized in that the push and pull cylinder (22) with a koaxl & l arranged, locking against rotation guide rod (31) for the inner stator (26) is equipped 9) Device according to one of address 1 to 8, characterized in that that the parts (9 · 11} 24, 26) of the electric motor (1, 21) rotating relative to one another aiffcels Axial thrust bearings, preferably axial-radial thrust bearings (12, 13; 39) aa circumferential area of the inner engine part (11, 26) supported against one another in both directions are. / 27 ro i ^ ifoy 6/15/78 Diploma in Phys. Heinrich Seids · Patent Attorney · 62 Wiesbaden · Bierstadter Höhe 15 · PO Box 12068 · fi? (06121) 565382 - 27 - 10) Device according to claim 9, characterized in that the axial-radial thrust bearings (12, 13; 39) are all roller bearings with non-magnetizable roller bearing bodies (14), for example made of plastic, preferably based on polyamides. 11) Device according to claim 1, characterized in that the stator (42, 44) of the electric motor is designed with an axial length that is the axial length of the rotor, (46) plus the desired stroke length and a threaded part that is fixed with respect to the stator (43), in or on which the rotor (46) of the electric motor is guided with a mating thread (45). 12) Device according to claim 11, characterized in that the stator has a plurality of cylinder tubes (42) equipped with an internal thread (43) field windings (44) placed on the outside of the cylinder, and the rotor (46) as piston-shaped ms ** ■. -_, Internal rotor ia covered with an external thread (43) Internal thread of the cylinder tube (42) guided let. / 28 Dipl.-Phys. Heinrich Silk · Patent Attorney ■ 62 Wiesbaden · Bierstadter Höhe 15 · P.O. Box 12068 · ® (06121) 565382 - 28 - 13) Device according to claim 12, characterized in that each field winding (44) has the current status of the rotor (46) scanning switch (41) and one Switching arrangement are assigned, by means of which only those field windings (44) in the Erregerstroakrele are switched on, which are in the vicinity of the respective piston position 14) Device according to one of the claims «1 to 13» thereby characterized in that axially resilient edging buffers (46, 49) are provided for the moving part of the armature (45). '15) Pre-work according to one of the speeches 1 to 14, thereby shown that one of the two relatively rotating parts (9, 11) of the electric motor axially elastically resiliently attached to the other, and that this resiliently resilient attachment in the Force path (6, 18, 13 · 9, 2) of the pulling and pushing device included 1st. 16) Device according to claim 15 · characterized in that the old one of the threaded parts equipped Tnaeniaufer (11) an electric motor ta an is kind of a kiftg inside / 29 DlpL-Phys. Heinrich Seids · Patent Attorney ■ 62 Wiesbaden · Bierstadter Höhe 15 · P.O. Box 12068 · ® (06121) 565382 - 29 - d ·· anchor attached tube ·· (65) eua nichtaagaetiechea Material axially displaceable and through] two opposite each other, possibly, in their forespwanung; adjustable buffer springs (67 »6Θ) axially on the stator (9) is aligned. i 1?) Device according to one of claims 1 to 16, good eon- _; characterized by a limit switch that responds to the upper load! or safety switch. ^! 18) Device according to one of claims 1 to 17 »characterized in that that an »electrical overcurrent switch switched into the motor fault circuit as a limit switch is provided.