DE212011100065U1 - Belt conveyor and infeed / outfeed device - Google Patents

Abstract

Belt conveyor (101, 102), comprising: - a drive wheel (19, 20) and - a toothed belt (201..205) which protrudes into a conveying plane for contact with a conveyed object and on the side facing the conveying plane at least two different, having areas dividing the toothed belt (201..205) in the longitudinal direction, characterized in that a) a first area has a first set of teeth protruding into the conveying plane and a second area has a second, different set of teeth that coincides with a set of teeth of the drive wheel (19) is in engagement or b) that a first area has a first toothing projecting into the conveying plane and a second area is untoothed, which is in frictional contact with the drive wheel (20).

Description

The invention relates to a belt conveyor with a toothed belt, which is driven by a drive wheel and is provided in a conveying plane for contact with a conveying object, wherein the teeth of the toothed belt point in the direction of the conveying plane. The invention further relates to an input / output device with a conveyor for transporting objects to be conveyed.

Conveyors are now widely used and, for example, from any warehouse, no production facility and no postal or baggage distribution system indispensable. They are used for the comfortable conveying and sorting of sometimes very heavy loads. Over time, many types of conveyors have evolved that are optimized for a particular application. Very often conveyors are designed as belt conveyors in which the conveyed material is transported by belts which are in contact with the conveyed material.

The belt conveyor is very similar to a conveyor belt, but the belts used in belt conveyors are generally much narrower than conveyor belts. Nevertheless, no clear demarcation can be given here, so that the boundaries between belt conveyors and conveyor belts are fluid.

Flat and V-belts have been used for belt conveyors for a long time, and now also toothed belts. The latter can help prevent slippage of the belt over the drive wheel. Although a toothed belt may have a similar or even the same cross-section as a V-belt or flat belt, however, the toothed belt has gaps in which the teeth of a drive wheel engage. In order to protect the drive side, ie the toothed side of the toothed belt, the toothing according to the prior art of a conveying plane, which is intended for contact with a conveyed object away. Consequently, in known solutions, the drive wheel facing away from a smooth side with the conveyed in contact.

The EP 1 564 165 A1 shows a belt conveyor, in which a belt over two outer pulleys, two tension rollers, a drive wheel and another guide roller is guided. The two tension rollers are pulled together in the horizontal direction and thus keep the belt to tension. The drive wheel drives the belt in this arrangement on the side facing away from the conveyor objects of the belt. As a belt and a toothed belt can be provided.

The US 5,743,375 shows a discharge device in which a conveyed object can be removed from a flow by means of arranged transversely to a main conveying direction chains. On the chain there are laterally arranged rollers.

The US 2002/0092734 A1 further shows a discharge device in which a flat belt is used for conveying objects transversely to a main conveying direction. In this case, a central drive shaft is provided, which drives both conveyor rollers and transversely arranged conveyor belts.

The US 2009/0255784 A1 further discloses a belt conveyor equipped with a flat or round belt. A central drive roller drives all belt conveyors to an ejection device. In addition, a replacement of a belt conveyor can be done without tools.

The JP 2009215065 A also discloses a belt conveyor which is equipped with a toothed belt. The teeth of the toothed belt point in the direction of the conveying plane. The toothed belt is driven by a gear which presses from outside onto the toothed belt.

The DE 42 14 384 A1 further discloses a conveyor with a toothed belt for conveying electronic components. The toothed belt has notches, in which the electronic components can be inserted.

The EP 1 696 150 A1 also discloses a toothed belt constructed of two different materials.

The CH 692 332 A further shows a manufacturing method for a toothed belt, in which the tooth profile is pressed into a softened plastic.

The GB 1 243 008 A . EP 1 153 714 A1 . FR 1 415 123 A . US 2,873,843 A . US 2002/175055 A1 . DE 20 2005 019 111 U1 . US 2003/079965 A1 and the JP 60144214 A Finally disclose timing belt or conveyor belts, which on the inside, so the conveying plane opposite side, are driven.

These solutions have some disadvantages. Because the side facing away from the toothing of a toothed belt is usually relatively smooth, which of course also applies to, for example, flat belt, optimal contact with the conveyed material can not always be guaranteed. There is therefore a risk that the belt slips under the conveyed. In addition, a toothing needs a Timing belt also with regard to an advantageous contact with a support plane facing away from the support surface, on which the toothed belt rests, are selected. The teeth of the toothed belt must therefore not be too narrow, because otherwise there is a risk that the pressed against the support surface teeth - for example, when transporting very heavy conveyed - are bent and the timing belt damage in this way. Finally, a certain bending radius can not be undershot in a toothed belt with teeth pointing inwards. If too much bending, it can happen that adjacent tooth flanks are due to the strong bending together and the timing belt can be deformed from this date only with considerable effort further. For this reason, relatively large pulleys must be provided in known belt conveyors, whereby the belt conveyor is relatively bulky. Furthermore, conventional belt conveyors with toothed belt are sometimes very noisy, because the inwardly facing teeth cause a considerable rolling noise in the outer pulleys, around which the toothed belt is usually laid with a wrap angle of approximately 180 ° - similar to a studded tire of an automobile causes a distinct perceptible humming. In solutions in which the toothing of a toothed belt points in the direction of the conveying plane and in which a drive wheel engages, the toothing must finally be designed for two different purposes, which is sometimes very difficult.

The object of the invention is therefore to provide an improved belt conveyor and an improved infeed / outfeed device, in particular a belt conveyor and an infeed / outfeed device in which or the aforementioned disadvantages are overcome.

• a) ein erster Bereich eine erste, in die Förderebene ragende, Zahnung aufweist und ein zweiter Bereich eine zweite, andere Zahnung aufweist, welche mit einer Zahnung des Antriebsrads in Eingriff steht oder
• b) ein erster Bereich eine erste, in die Förderebene ragende, Zahnung aufweist und ein zweiter Bereich ungezahnt ist, welcher reibschlüssig mit dem Antriebsrad in Kontakt steht.

The invention is achieved with a belt conveyor comprising a drive wheel and a toothed belt, which projects into a conveying plane for contact with a conveyed object and on the side facing the conveying plane at least two different, the toothed belt in the longitudinal direction dividing areas, wherein

• a) a first region has a first, projecting into the conveying plane, teeth and a second region has a second, other teeth, which is in engagement with a toothing of the drive wheel or
• b) a first region has a first, projecting into the conveying plane, teeth and a second region is untoothed, which is frictionally engaged with the drive wheel in contact.

The invention is further achieved with an input / output device of the type mentioned, which comprises at least one arranged transversely to the main conveying direction Riemenein- / Ausschleuser of the type mentioned above.

According to the invention, the regions of a toothed belt can be optimally optimized to the respective application. For example, a first region, such as an inner higher toothing, for contact with a conveyed object, and a second region, e.g. B. an outer lower teeth to be optimized for engagement with a gear. But the reverse case is possible, namely that an outer higher toothing for contact with a conveyed object, an inner lower toothing, however, is optimized for engagement with a gear. That is, the first toothing may be provided in case a) for contact with a conveyed object and the second toothing for engagement with a toothed drive wheel. Advantageously, such a positive connection between the toothed belt and the drive wheel or the conveyed object can be produced. It is also advantageous that an abrasion of the toothed belt due to the contact with the objects to be conveyed due to the increase in this area is largely without influence on the contact between the drive wheel and the toothed belt.

In a variant of the invention, the toothed belt has a continuous, non-toothed area, which is likewise provided for contact with a conveyed object or for engagement with a (smooth) drive wheel. This means conversely, the first toothing can be provided in case b) for contact with a conveyed object. Thus, it can be provided that a conveyed object can slip over the belt or slippage through a smooth drive wheel. In both cases, an overload can be effectively avoided. In addition, a non-toothed area is less susceptible to contamination.

According to the invention, it is further achieved by a toothing pointing toward the object to be conveyed that the contact with the material to be conveyed is improved - much as the contact of a tire with the road is improved by a tire profile. In addition, dirt that accumulates in the area of a belt conveyor is automatically transported away. The maintenance intervals of a belt conveyor can thus be extended. Furthermore, the toothing of the toothed belt need not be selected with regard to an advantageous contact with a support surface, as is the case when the toothing facing the support surface. Finally, a toothed belt with outwardly facing teeth can be easily deformed or can be laid in narrower radii. In a conventional arrangement of a toothed belt, it may happen that too much bending namely that adjacent tooth flanks are due to the strong bend together and the Tooth belt of another bend so opposes a considerable resistance. For this reason, in the arrangement according to the invention of the toothed belt, relatively small outer deflection rollers can also be provided, without losing too much energy or power. Therefore, a thermal overuse of the toothed belt due to excessive bending stress is relatively unlikely. Finally, the belt conveyor according to the invention is also significantly quieter than a belt conveyor of conventional design, since the smooth side of the belt is in contact with the outer pulleys and so no buzzing rolling noise can arise.

Further advantageous embodiments and modifications of the invention will become apparent from the dependent claims and from the description in conjunction with the figures of the drawing.

It is particularly advantageous if the teeth of the first toothing are designed for contact with a conveying object such that in the region of the conveying plane (in particular on a straight section of the toothed belt) form a substantially closed surface pointing in the direction of the conveying plane. In this way, a virtually ungezahnter area is formed in the conveying plane, yet the timing belt remains very flexible because of the existing teeth. In addition, such a toothed belt has improved damping properties in the region of the conveying plane compared to a completely untoothed region, since the teeth - although forming a closed surface - can nevertheless deform, much like the blades of a winter tire for a motor vehicle.

It is also advantageous if the toothed belt has three or more areas and is at least approximately symmetrical with respect to a central axis. In this way, the toothed belt is deformed symmetrically under load and therefore does not run so easily. For example, a drive wheel at two laterally disposed outer regions on the toothed belt attack, whereas a central region is provided for contact with a conveyed object. But the reverse case is possible, d. H. in that the central region is intended for contact with a drive wheel and the outer regions are intended for contact with a conveyed object.

It is particularly advantageous if the toothed belt is provided for positive engagement with conveyor objects, in particular with loading aids. The loading aids (for example, boxes or boxes) or conveyed objects have in the conveying plane to webs, ribs or other projections which fit into the tooth spaces of the toothed belt. In this way, a positive connection between the timing belt and a loading aid / delivery object can be achieved.

It is favorable if the drive of the toothed belt takes place on its smooth side over a smooth drive wheel. In this way, for example, the toothing of the toothed belt can be designed for positive engagement with conveyed objects without having to accept the limitations imposed by a gearwheel.

It is also favorable if the drive of the toothed belt takes place on its toothed side via a toothed drive wheel. In this way slipping of the belt over the drive wheel can be largely avoided. In addition, if there is a form fit between the toothed belt and a loading aid / conveyed object, then a revolution of the toothed drive wheel directly corresponds to a certain way of loading aid or the conveyed object, since there is positive locking both between the drive wheel and timing belt and between timing belt and loading equipment or conveyor object. Thus, if the angular position of the drive wheel measured in a conventional manner, then it can be concluded very easily on a conveying path in the conveying plane.

It is also favorable if the wrap angle of the toothed belt around the drive wheel is less than 180 °. In this way, a comparatively large constructive clearance is given, which offers a huge advantage over known solutions in which large wrap angles are necessary. In addition, the timing belt does not need to be deformed so much, which provides energy benefits and also extends the life of the belt.

It is also favorable if the wrap angle of the toothed belt around the drive wheel is at most 90 °. Here, what has just been said applies with the difference of the even greater constructive clearance, greater energy advantages and an even longer service life of the toothed belt.

It is also advantageous if the toothed belt is toothed on the top and bottom. In this variant, the surface of the toothed belt resting on the belt carrier also has teeth, as a result of which dirt, which has formed between the toothed belt and the belt carrier, can be easily removed. The belt carrier is thus cleaned continuously. Advantageously, the bending of the same is facilitated by the double toothing, which is why smaller pulleys can be provided without the need for excessive energy expenditure. Finally, the external toothing for contact with a conveyed object, the inner toothing on the other hand be optimized for contact with a drive wheel.

Therefore, no compromise has to be made to reconcile the two requirements, as is the case with belt conveyors of conventional design.

It is also advantageous if the toothed belt comprises a first part of a first material and a second part of a second material. In this way, the timing belt can be particularly well adapted to the different needs, namely to the contact with a drive wheel and to the contact with a conveyed object. For example, the part in contact with the drive wheel is made of a relatively hard material to realize a long service life, while the part in contact with the object to be conveyed is made of a relatively soft material to provide good frictional engagement between the belt and the object to be conveyed. But also another combination of materials is possible. Advantageously, the two parts are glued or vulcanized together. For example, a relatively high middle part is glued to a relatively wide base part. In this way, for example, a soft central toothing, which is intended for contact with a conveyed object, be combined with a harder outer toothing, which is arranged on the same side as the central toothing and provided for contact with a drive wheel. It is also conceivable, for example, that the toothed belt is toothed on both sides (that is, top and bottom) and the upper toothing of a different material than the lower teeth. In this way, for example, standing in contact with a drive gear lower teeth hard, the standing in contact with a conveying object upper teeth be performed soft against it. Finally, it is pointed out that the toothed belt made of different materials can also be used elsewhere than in a belt conveyor. This can therefore independently of the features of claim 1 form the basis of an independent invention.

It is advantageous if the belt conveyor is designed as a belt in / Ausschleuser. These elements are often needed in the construction of conveyors. Belt infeed / outfeed conveyors enable the transport of a conveyed material transversely to a main conveyor. Due to the complexity of such systems, reliable operation of belt in / out haulers is very advantageous. The invention can thus help to make a conveyor more reliable and reduce downtime due to maintenance.

The above embodiments and further developments of the invention can be combined in any manner.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

Each shows in a highly schematically simplified representation:

1 an exemplary belt conveyor in an exploded view;

2 the belt conveyor off 1 in side view;

3 the belt conveyor off 1 in cross-section;

4 an exemplary toothed belt with straight teeth in an oblique view;

5 an exemplary timing belt with straight, undercut teeth in an oblique view;

6 an exemplary toothed belt with offset teeth in an oblique view;

7 an exemplary timing belt with offset, undercut teeth in an oblique view;

8th an exemplary timing belt with a continuous central part in an oblique view;

9 the timing belt off 8th on average;

10 a first variant of an input / output device with toothed drive wheel;

11 a second variant of an input / ejection device with smooth drive wheel and

12 a third variant of an input / output device, in turn with toothed drive wheel.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location selected in the description, such as. B. top, bottom, side, etc. related to the immediately described and illustrated figure and are at a change of position to the new situation.

The embodiments show possible embodiments of a belt conveyor or a loading / unloading device, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are mutually possible and this variation possibility due to Teaching for technical action by objective invention in the skill of those working in this technical field is the expert. So are all conceivable embodiments, which are possible by combinations of individual details of the illustrated and described embodiment variant, includes the scope of protection.

1 and 2 show a belt conveyor 101 , which is a toothed belt 201 , a belt carrier 4 , a front pulley 5 , a cover 6 , a rear pulley 7 , a lower pulley 8th , a belt tensioner 9 , a tension roller 10 , a left side panel 11 and a right side panel 12 includes. The belt conveyor 101 is in 1 as an exploded view, in 2 shown in side view.

In the front area of the belt carrier 4 are the front pulley 5 as well as the cover 6 appropriate. In the back area of the belt carrier 4 is the rear pulley 7 arranged. Furthermore, on the belt carrier 4 the lower pulley 8th as well as the belt tensioner 9 attached, which is the tension roller 10 pushes down. The belt tensioner 9 Can be designed as a manual or automatic belt tensioner. The timing belt 201 is in the upper part of the belt carrier 4 over the front and rear pulley 6 and 7 guided. In the lower part of the belt carrier 4 he is on the lower pulley 8th , the tension roller 10 and guided a drive roller. The drive roller itself is not shown, however, the timing belt 201 in a drive area 13 arcuate, so that the position of the drive roller can be guessed. Between the drive roller and the pulley 8th pushes the tension roller 10 down and holds the timing belt 201 on tension.

In this example, the timing belt 201 driven on its toothed side via a toothed drive wheel. The wrap angle is less than 180 ° and a maximum of 90 °, namely exactly 90 °. The wrap angle of the toothed belt 201 In this example, it is very small, but without slippage of the toothed belt 201 to risk.

Another advantage of the toothing is also that of the timing belt 201 can be easily deformed, that is, it sets a bend around a roll 5 . 7 . 8th and 10 only slight resistance. For this reason, even relatively small roles 5 . 7 . 8th and 10 be provided without the strong bend during the movement of the toothed belt 201 too much energy or power is lost. Therefore, there is also a thermal overload of the toothed belt 201 due to excessive bending stress relatively unlikely.

In the upper area is the timing belt 201 on the belt carrier 4 on and is guided there in the present example along a straight line. In principle, however, other waveforms are conceivable. For example, the timing belt 201 be guided along a bow.

The upwardly facing teeth of the toothed belt 201 form the conveying plane and are provided in this area for contact with a conveying object (not shown).

3 shows a detailed view, namely a cross section through the belt conveyor 101 , Good to see is that the timing belt 201 on the belt carrier 4 rests. Towards the top is a movement of the toothed belt 201 from the side parts 11 and 12 limited by means of screws 14 on the belt carrier 4 are attached. The lower part shows the timing belt 201 over the pulley 8th is guided.

In the 3 and the following figures further and possibly independent embodiment of the belt conveyor according to the invention or the input / output device according to the invention are shown, again for the same parts the same reference numerals or component names are used as in the previous figures. To avoid unnecessary repetition, reference is made to the detailed description in the preceding figures.

The timing belt is advantageous 201 provided for the positive engagement with conveyor objects or loading aids (for example, boxes or boxes). The loading aids have in the conveying plane to webs, ribs or other projections, which in the tooth spaces of the toothed belt 201 fit. In this way, a positive connection between the timing belt 201 and a conveyance object / loading aid. Will the timing belt 201 Moreover, driven by a gear, then corresponds to a revolution of the toothed drive wheel directly a certain way of loading aid or conveyed object, since both between the drive wheel and timing belt 201 as well as between toothed belt 201 and loading equipment or conveyor object form fit exists. Thus, if the angular position of the drive wheel measured in a conventional manner, then it can be concluded very easily on a conveying path in the conveying plane.

4 shows the timing belt 201 now in oblique view. It can be clearly seen that the teeth point upwards. In addition to a toothing in the middle region, the toothed belt 201 also a flatter toothing in the lateral area. This toothing is advantageous but not mandatory. For example, a drive wheel can engage only on the outer toothing, which can thus be optimized for engagement with the drive wheel, while the inner higher toothing is provided for contact with a conveyed object, and can be optimized for this task. Of course, it is also conceivable that the inner toothing is lower than the outer and is provided for engagement with a gear, while the outer higher toothing is provided for engagement with a conveyed object.

5 shows an alternative embodiment of a toothed belt 202 which corresponds to the in 4 illustrated toothed belt 201 is very similar. However, the teeth point to the timing belt 202 an undercut on.

6 shows a further alternative embodiment of a toothed belt 203 which corresponds to the in 4 illustrated toothed belt 201 is very similar. However, the teeth are at the timing belt 203 staggered.

7 shows yet another alternative embodiment of a toothed belt 204 which corresponds to the in 6 illustrated toothed belt 203 is very similar. However, the teeth point to the timing belt 204 an undercut on.

8th finally shows an embodiment of a toothed belt 205 which is different than the ones in the 4 to 7 illustrated toothed belt 201 .. 204 has a continuous middle part. This design is advantageous if, however, positive engagement with a drive wheel is to be produced, but there should be no positive engagement with the delivery object. The reverse case is of course conceivable, namely that the conveyed object form-fit, but to the drive wheel towards frictional engagement, for example, to allow slipping in case of overload. In this variant, for example, the middle part would be toothed, but the flatter outer regions would not be toothed. Of course, it is also conceivable that the raised area other than shown outside on the timing belt 205 is provided. The middle area would then be lower than the outer area.

9 shows the timing belt 205 in cross section. It can be seen that this is constructed in two parts, namely a wide first part 205a (executed here as a basic part) and an attached second part 205b (executed here as middle part). Advantageously, the toothed belt 205 for example, from a harder base 205a and a softer middle section 205b be constructed. In this way, the outer toothing has a relatively long life, whereas the soft middle part 205b ensures optimum frictional engagement with a conveyed object. Of course, other material combinations are possible, especially a softer base 205a and a harder middle part 205b ,

In the manufacture of the timing belt 205 For example, a conventional wide timing belt can be used which is centered except, for example, milled, and as a base 205a acts. On this basic part 205a becomes the middle part 205b put on and glued or on the base 205a vulcanized.

In the 9 illustrated embodiment of the toothed belt 205 is also suitable for those in the 4 to 7 illustrated toothed belt 201 .. 204 , This means that it is also possible to provide a toothed middle part in order, for example, to again realize a relatively soft (but now toothed) central part and a relatively hard toothed outer part.

It is also conceivable that a double-sided (ie top and bottom) toothed toothed belt is used, in which the upper part of a first material and the lower part of a second material are made. In this way, for example, a lower or inner toothing can be relatively hard and be prepared for contact with a drive wheel, whereas the upper or outer toothing is relatively soft and is prepared for contact with a conveyed object. The teeth can be different in this variant than in the 9 illustrated variant each extend over the entire width of the toothed belt.

10 now shows an exemplary embodiment of an input / ejection device 301 , This includes a base frame 15 , a left roller rail 16 , a right roller rail 17 , several conveyor rollers arranged in between 18 , as well as a drive wheel 19 , In addition, the input / output device includes 301 several belt conveyors 101 , which are designed in this example as a belt in / Ausschleuser.

The function of in 10 illustrated input / output device 301 is as follows:
With the help of the conveyor rollers conveyor objects (not shown) can be transported in a main conveying direction. In addition, here at right angles to it, are several belt in / out sluice 101 arranged. If now a conveyed object above the belt in / schleschleuser 101 This can be done by activating the belt in / out slider 101 be transported transversely to the main conveying direction. In particular, the belt entry / exit sliders 101 raised slightly for this purpose.

Concealed from the base frame 15 has the input / output device 301 a drive motor, which has a plurality of drive wheels 19 drives. These each grip a toothed belt 201 and cause a movement of the same. From the 10 Another advantage of this arrangement will become apparent. Because of the low wrap angle of only 90 °, the belt in / out 101 namely very easy to remove and reinstall, if this is necessary for maintenance purposes. These are simply from the drive wheel 19 lifted. For larger wrap angles, in particular angles greater than 180 ° as provided by the prior art, this is not so easy.

11 shows an alternative embodiment of an input / ejection device 302 which the in 10 illustrated input / output device 301 very similar, in cross-section. In this example drives an engine 21 a drive wheel 20 and this in turn a timing belt 201 but not on its toothed side, but on its smooth side. The drive of the toothed belt 201 So it takes place on its smooth side on a smooth drive wheel 20 , In order to prevent slippage as far as possible, in this embodiment, therefore, a larger wrap angle of the toothed belt 201 intended.

Moreover, the infeed / outfeed device has 302 a guide 22 on to prevent falling of a conveyed object, or to align this before the discharge or after the sluice. If the conveyed object is above the discharge device 302 is located (and aligned), the timing belt 201 in the unloading direction 23 or in the opposite direction of insertion (which are transverse to a main conveying direction) in motion.

In the 12 is another variant of the input / ejection device 301 with the already in detail the 1 and 2 to be taken belt conveyor 101 shown. According to this embodiment, the belt conveyor 101 with a toothed belt 201 like this one already in the 4 is described, provided with a T-shaped cross-section, with a central row of teeth and on both sides of each extending in a lower level row of teeth.

The belt conveyor 101 is in the modular conception, as in the 1 and 2 described, executed and has the front pulley 5 , the rear pulley 7 and a tension roller 10 on. In the basic frame 15 are several of these belt conveyors 101 running parallel to each other between not shown conveyor rollers of the input / output device 301 raised and lowered - according to double arrow 24 - Arranged on a common and not shown adjusting frame.

The lifting or lowering takes place by a small amount, wherein in the raised state, an upper side of the toothed belt 201 a roller top of the adjacent conveyor rollers slightly surmounted and in a lowered position, the top is slightly below the roller top. For this purpose are the engine 21 and that with this drive-connected, toothed drive wheel 19 movable In the base frame 15 arranged and synchronized with the belt conveyors 101 lifted or lowered. The drive wheel 19 engages in this example in the toothed outside of the belt 201 a, more precisely in the two, on both sides of the central teeth running rows of teeth.

The modular design of the belt conveyor 101 , as well as a belt guide on the drive wheel 19 , as to the training of the 1 . 2 . 10 and 12 ensure easy assembly and disassembly of the belt conveyors 101 in or out of the base frame 15 the input / output device with corresponding brackets in the base frame 15 , Advantageously, a defective belt conveyor 101 swapped quickly for a new one by simply removing it from the drive wheel 19 is lifted. The maintenance of the defective belt conveyor 101 can then take place in a workshop, without restricting the operation of the input / ejection device

Advantageously, the toothed belt 201 .. 205 be toothed from the above figures both on the top and on the bottom. In this case also points out the on the belt carrier 4 resting surface of the toothed belt 201 .. 205 a toothing on. In this way, dirt can build up between timing belts 201 .. 205 and belt carrier 4 forms, be easily and continuously discharged. The advantage of the double toothing is also the bending of the toothed belt 201 .. 205 relieved, so smaller pulleys 5 . 7 . 8th and 10 can be provided. Furthermore, only a lower energy expenditure is necessary.

Is the timing belt 201 .. 205 double toothed, as well as the drive wheel 20 from the 11 advantageous to a toothing.

As a matter of precaution, it should be pointed out that for a better understanding of the structure of the belt conveyor 101 . 102 or the input / output device 301 . 302 Corresponding components have been shown partly unevenly and / or enlarged and / or reduced in size.

The task underlying the independent inventive solutions can be taken from the description.

Above all, the individual in the 1 to 12 shown embodiments form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.

LIST OF REFERENCE NUMBERS

101..102

belt conveyor

201..205

toothed belt

205a

first toothed belt part

205a

second toothed belt part

301..303

Input / discharge apparatus

4

belt carrier

5

front pulley

6

cover

7

rear pulley

8th

lower pulley

9

tensioner

10

idler

11

left side panel

12

right side part

13

driving range

14

screw

15

base frame

16

left roller rail

17

right roller rail

18

conveyor rollers

19

toothed drive wheel

20

smooth drive wheel

21

engine

22

guide

23

Ausschleuserichtung

24

Lifting / lowering

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1564165 A1 [0005]
• US 5743375 [0006]
• US 2002/0092734 A1 [0007]
• US 2009/0255784 A1 [0008]
• JP 2009215065 A [0009]
• DE 4214384 A1 [0010]
• EP 1696150 A1 [0011]
• CH 692332 A [0012]
• GB 1243008 A [0013]
• EP 1153714 A1 [0013]
• FR 1415123 A [0013]
• US Pat. No. 2,837,843 A [0013]
• US 2002/175055 A1 [0013]
• DE 202005019111 U1 [0013]
• US 2003/079965 A1 [0013]
• JP 60144214 A [0013]

Claims (8)

Belt conveyor ( 101 . 102 ), comprising: - a drive wheel ( 19 . 20 ) and - a toothed belt ( 201 .. 205 ), which projects into a conveying plane for contact with a conveyed object and on the side facing the conveying plane at least two different ones, the toothed belt ( 201 .. 205 ) in the longitudinal direction dividing regions, characterized in that a) that a first region has a first, projecting into the conveying plane, teeth and a second region has a second, other teeth, which with a toothing of the drive wheel ( 19 ) is engaged or b) that a first region has a first, projecting into the conveying plane, teeth and a second region is untoothed, which frictionally with the drive wheel ( 20 ) is in contact. Belt conveyor ( 101 . 102 ) according to claim 1, characterized in that the teeth of the first toothing in cases a) and b) are formed such that they form in the region of the conveying plane a substantially closed, pointing in the direction of the conveying plane surface. Belt conveyor ( 101 . 102 ) according to claim 1 or 2, characterized in that the toothed belt ( 201 .. 205 ) has three or more portions which divide it in its longitudinal direction, and is at least approximately symmetrical with respect to a central axis. Belt conveyor ( 101 . 102 ) according to one of claims 1 to 3, characterized in that the wrap angle of the toothed belt ( 201 .. 205 ) around the drive wheel ( 19 . 20 ) is less than 180 °. Belt conveyor ( 101 . 102 ) according to one of claims 1 to 3, characterized in that the wrap angle of the toothed belt ( 201 .. 205 ) around the drive wheel ( 19 . 20 ) is maximum 90 °. Belt conveyor ( 101 . 102 ) according to one of the preceding claims, characterized in that the toothed belt ( 201 .. 205 ) is toothed on the top and bottom. Belt conveyor ( 101 . 102 ) according to one of the preceding claims, characterized in that the toothed belt ( 201 .. 205 ) a first part ( 205a ) of a first material and a second part ( 205b ) comprises a second material. Infeed / outfeed device ( 301 .. 303 ) with a conveyor for transporting objects to be conveyed in a main conveying direction, characterized by at least one belt conveyor arranged transversely to the main conveying direction ( 101 . 102 ) according to one of claims 1 to 7.

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