DE19540220C1 - Running wheel block assembly - Google Patents

Abstract

The running wheel block, with seatings in the housing for the sliding and/or roller bearings, has at least one head connection surface (8) at the block-shaped housing (1). It takes up the carrier forces, and matches the width (6) of the housing and the width (7) of the running wheel. It is at the side of the bonding between the housing and the chassis. The housing and/or the cover (14) are of a light metal alloy, a ferrous alloy, a plastics which can be plasticised or it is a compound material which can be melted. The housing and/or cover can be forgings.

Description

The invention relates to an impeller block with a housing in which rotary bearing Seating surfaces for plain and / or roller bearings for receiving one after at least one Outstanding impeller are provided, the housing for the purpose Removal of the sliding or rolling bearings and / or the impeller at least on one side can be dismantled into housing parts and reconnected.

Such an impeller block is made by Mannesmann Demag Fördertechnik AG manufactured and sold under the name RS. Such an impeller block is also known from DE 31 34 750 C2.

The known impeller block is made of two welded together or otherwise connected halves of the bearing housing formed and pressed inward Pivot bearing seats for bearings in which the hub of the impeller is supported. In this case, the rotating bearing seat surfaces are directed towards the hub Contact surfaces for the bearings and the impeller with its hub extends beyond Bearing and is supported directly on the housing, and the hub also points on their outer rings on both sides, ring grooves for on the end faces of the bearings adjacent snap rings and an opening with internal teeth for an external toothing of a drive shaft.

This design has proven itself in practice for years. However, it still exists the need to minimize costs and improve functionality.  

A disadvantage of the known impeller block is that to replace the impeller Impeller block in its entirety completely detached from the supporting structure must become.

After changing the impeller, the entire impeller block is attached to the The structure - just like the initial assembly - is fastened with screws. To do this the impeller block but in its position relative to the structure with the other impellers aligned so that the axis of rotation of the impeller is perpendicular to The runway on which the wheel rolls is running. This assembly process is through the complex alignment is time-consuming, which reduces the downtime of the Entire machine extended, and therefore also cost-intensive. If the Alignment process is not carried out, there is a risk that the impellers through Grind (rub) the skew on the running track and therefore faster wear out. Furthermore, when using a gantry crane, there is a risk that that the running behavior of the overhead crane is sensitive due to skew, cornering and Flange wear is disrupted. In addition, with increasing slip angle Lateral forces that the structure or the like. Beyond the operational stress strain. This problem is described in detail in DIN 15 018.

The present invention is therefore based on the object, manufacturing and Assembly costs due to a further development of an impeller block minimize and increase customer benefit by the fact that the above Disadvantages of the known impeller blocks can be avoided.

The stated object is achieved in that a block-shaped housing has at least one load-bearing capacity, which extends approximately to the housing width or impeller width, on the side of which the connecting means between the housing and a structure to be connected to the impeller block, support, traveling frame or the like are arranged. The present invention enables the impeller and / or the bearing to be replaced without the housing having to be detached from the supporting structure. This eliminates the time-consuming and costly alignment process following the replacement of wearing parts, the housing can still be used and remains aligned with the supporting structure or the like, as long as this is desired
There is also the advantage of using non-detachable connecting means in addition to detachable connecting means because the block-shaped housing no longer has to be detached from the relevant carrier or traveling frame.

Another advantage is that the newly developed wheel block completely in its Components can be disassembled and recycled. This is particularly important increasing disposal costs and the separate disposal according to materials advantageous.

According to further features, it is provided that the head connection surface and / or a Cheek surface and / or an end connection surface in lying and not lying Subareas is divided. This makes the introduction of force more defined than before, and it is significantly in the machining performance or the production of the impeller block Machining volume saved.

It is also advantageous that an overlying partial area is undivided, i. H. no parting line having. The flatness of the surface becomes with a homogeneous material and smaller Subareas as connection areas are correspondingly more precise than with several or large ones Partial areas. Forces are also defined in the smaller subareas Connection construction initiated. This leaves an optimized training of Connection structure with known power flow to.

According to further features, it is provided that at least on one side of the A detachable cover is attached to the housing. Is centered. This will result in a lateral expansion of the bearings and / or the Impeller possible. The side expansion reduces the disassembly and Assembly effort of the impeller in that now the structure, the carrier or the travel frame is only raised by the wheel flange height of the wheel must become.

Further advantages result from the fact that the head connection area has one or more Has breakthroughs. This advantageously means that the impeller radius can be changed be increased more than the thickness of the upper plate limit. It is advantageous furthermore that the breakthrough prevents dirt deposits even in the event that  the housing with the open side from which the impeller protrudes, against the Direction of gravity (upwards).

However, it is also possible that the breakthroughs again by means of closure pieces are closable, which are not made of the same material as the housing must be made, since they neither take up load capacities nor of the corresponding Resilience must be. The locking pieces prevent this Penetration of dirt or other contaminants also in the event that the housing with the open side on which the impeller protrudes, in Direction of gravity (downwards).

In an embodiment of the invention it is provided that the head connection surface with is provided at least one recess which runs parallel to the impeller axis. This allows prefabricated bolts to be used, with an imprecise one Hole pattern of the counterpart is possible without this leading to disadvantages because move the bolts in the recess and adjust them to the inaccurate hole pattern can.

Said recess can also be used as a groove guide, as a through hole or be designed as a threaded bore. Depending on the accuracy of the connection, the appropriate passage type can be selected.

Further advantages result from the fact that locknuts for Connecting screws can be adjusted transversely and are guided with little play. This Embodiment thus serves to facilitate connection and alignment during the initial assembly between the structure, girder, traveling frame or the like and the Impeller block housing.

The structure of the housing is asymmetrical, with at least one cheek surface can be closed by means of a cover and the housing width is a multiple of that Thickness of the lid is. Such a lid has several advantages because it is considered simple, plate-shaped part can be designed differently. It serves for Formation of interlocks, the attachment of sensor elements and can be used as an adapter be designed for connection to a drive unit.  

Based on the invention, it is assumed that the width of the housing that Is two to forty times the thickness of the lid. This allows rows of Housing levels are detected.

An easy disassembly of the lid is achieved in that the lid for Head pad is set lower.

The same advantage arises when the lid is at least one Front connection surface is formed recessed.

An advantageous power transmission takes place in that the cover with Centering hub is provided in the corresponding holes in the housing intervention.

It is also proposed that the cross section of the lid is outside the Impeller diameter thickened. In these areas, fasteners, Spacers u. Like. Be attached. The material required for this is pending sufficiently available to these bodies.

Accordingly, it is advantageous that countersinks for screw heads and nuts in the thicker cross section of the lid are arranged.

The fasteners can e.g. B. advantageously consist in that the Countersinks have a hexagonal shape, alternating either one Pick up a hexagon socket head or a hexagon nut.

It is also provided that the centering hubs have internal bores for receiving them are provided by support bolts that are concentric to the centering hub. This Design contributes to good power transmission to support the reaction forces in the Impeller block housing at.

Manufacturing advantages also result from the fact that the centering hubs corresponding holes in the housing and the inner holes with your common axis each outside the circumference of the impeller parallel to  Impeller axis run. Such a system is accordingly low tolerance and therefore economically producible.

Another embodiment provides that in the housing on the cover opposite side a receiving hub for a rotary bearing for receiving the Inner ring or the outer ring is formed. This allows the pivot bearing can be easily brought into its exact position in terms of tolerances, which by appropriate Manufacturing technology is made possible.

According to other features, it is proposed that a Mounting hub for a rotary bearing for mounting the inner ring or the outer ring is trained. This measure also serves the production-technically favorable Manufacturing as well as simple assembly and disassembly.

Other features are that on the head pad and / or on the outer end connection surfaces of the housing receiving means for connecting means are provided. An adjustment of the Lanyard according to the setting of the entire impeller block be made.

In addition to the slot guides with slot nuts provided on the head connection surface recesses are also provided on the end connection surfaces of the housing. This means that additional elements can be connected without the front connection surface to finally prove. It is also possible to even use the whole wheel block on this End connection surface of the housing to a carrier or traveling frame or the like. to connect.

According to further features, it is provided that the recesses generally each as Groove guide, are designed as a through hole or as a threaded hole. Each according to which connecting means in combination with which receiving means The cheapest assembly and the most accurate possible location can result in the corresponding Combination can be selected.

Furthermore, it is provided that on the opposite of the head connection surface Outer surface of the housing from which the impeller protrudes, at least one  Partial pad is formed. At this partial connection surface can therefore also other units, such as B. guide rollers, measuring devices and. Like., Connected will. This partial connection surface can also be designed so that the whole The impeller block is connected to the supporting structure, carrier or traveling frame on this surface can be.

For this attachment of other units, it is advantageous that the outer End connection surfaces of the housing are undivided and each have a female Show area for load capacities.

To get an exact location and to avoid errors in storage is further provided that the cover with the housing is positive and / or non-positive is connected by means of connecting means and by means of centering hubs.

In order to avoid corrosion or to save weight, it is proposed that the Housing and / or the lid from a molten state too processing material. This is where light metal materials come in particular as well as plastics.

To ensure that the component in question is a desired one Resilience, it is provided that the material from a Light metal alloy is made.

It can also be advantageous for the material to consist of an iron alloy, if appropriate strengths are required.

For economical processing, it can be useful that the material is made of a plasticizable plastic.

In this regard, it may be desirable to have both sufficient strength of the Components as well as a low weight must be achieved. To do this proposed that the material consist of composite material or with others Materials forms a composite material.

An embodiment of the invention is shown in the drawing and is in following described in more detail. Show it

Fig. 1 is a front view of the entire Radblockes toward a cheek,

Fig. 2 that belongs to Fig. 1 side view of a forehead pad,

Fig. 3 is a plan view of the head pad,

Fig. 4 shows a section BB of Fig. 1,

Fig. 5 shows a cross section according to the section indication CC in Fig. 1,

Fig. 6 shows a cross section according to the section indication AA in Fig. 1,

Fig. 7 is a view from below against the wheel block,

Fig. 8. Secured a side view facing the cheek of the wheel block, the o on a support wheel frame. Like,

Fig. 9 shows a cross section corresponding to the section specified DD from Fig. 8,

Fig. 10 o a cross section in height of the support pin in an alternative embodiment of the carrier, traveling frame. Like.,

Fig. 11 is a view of a side-mounted wheel block, which is attached to a cheek surface and

Fig. 12 is a section GG in FIG. 11.

An impeller block (FIGS . 1 and 2) has a housing 1 , in which pivot bearing seat surfaces 2 (cf. FIG. 6) for slide and / or roller bearings 3 are provided for accommodating an impeller 4 which usually protrudes downward. For the purpose of removing the sliding and / or rolling bearings 3 and / or the impeller 4, the housing 1 can be disassembled and reconnected into housing parts at least on one side, a carrier or traveling frame 5 (cf. FIGS . 8 to 12) determining the direction of removal . The wheel block is attached to such a carrier or traveling frame 5 , as will be described below.

The housing 1 is block-shaped, ie viewed from the side and from above or below, either square or rectangular or also trapezoidal. The basic shape can resemble a cuboid.

This block-shaped housing 1 has at least one the supporting force (the impeller 4) receiving, located approximately to the housing width 6 and the impeller width 7 extending head pad 8 on the side 8 a connection means 9 (z. B. Compound screws 9 a, nuts, Bolts, rivets and the like) - cf. Fig. 8 - are arranged between the housing 1 and the carrier to be connected to the wheel block, traveling frame 5 or the like.

The head connection surface 8 and / or a cheek surface 10 and / or an end connection surface 11 are subdivided into overlying and non-overlapping partial surfaces 12 and 13 (cf. FIGS. 2 and 7). The overlying sub-areas 12 assume the respective load capacity or partial load capacity. In this case, an overlying partial surface 12 is itself undivided, although there may be several such overlying partial surfaces 12 . This system of the overlying sub-areas 12 and the non-overlying sub-areas 13 makes the position of the entire impeller block statically determined, safe and unambiguous after its adjustment to the carrier or traveling frame 5 . This position can therefore be maintained practically for life before, during and during the exchange of the sliding and / or rolling bearings.

For the exchange process, a detachable cover 14 is now attached to at least one side (cheek surface 10 ) of the housing and is centered in the operating position relative to the pivot bearing seat surfaces 2 .

For weight reasons, while the load-bearing capacity is retained in full, the head connection surface 8 has one or more openings 15 . The openings 15 can be closed by means of closure pieces 16 , which are made of materials with a low specific weight (cf. FIG. 3).

The head connection surface 8 is provided with at least one recess 17 (two recesses are drawn in FIG. 3) which runs parallel to the impeller axis 18 . The recess 17 can be designed as a groove guide 19 , as a through hole or as a threaded hole 20 . As shown ( Fig. 3) are in the groove guides 19 lock nuts 21 for connecting means 9 , which consist of the connecting screws 9 a.

The housing 1 is constructed asymmetrically for the reasons described above for permanent attachment in the sense that the side cover 14 is provided, the housing width being a multiple of the thickness 14 a of the cover 14 .

The width 6 of the housing 1 can, depending on the size and load capacity of the impeller 4, be two to forty times the thickness 14 a of the cover 14 , the cover 14 being set lower to the head connection surface 8 and thus in no way assuming load capacities and, in the absence of such, easily in the load state can be dismantled.

The cover 14 is also designed to spring back to an end connection surface 11 and thus does not interfere with a lateral contact for fastening the impeller block in another way (cf. FIGS . 11 and 12).

The cover 14 also has integrally formed centering hubs 22 which engage in corresponding bores 23 in the housing 1 .

The cross section 14 b of the cover 14 thickens outside the impeller diameter 4 b. Countersinks 38 for screw heads 39 and nuts 40 are incorporated into these thickenings. The countersinks 38 can have a hexagonal shape 41 , with either an internal hexagon head 42 ( FIG. 1) or a hexagonal nut 43 ( FIG. 4) being used alternately.

The centering hubs 22 are equipped with inner bores 24 . The inner bores 24 receive support bolts 25 and are concentric with the centering hub 22 .

The centering hubs 22 , the corresponding bores 23 in the housing 1 and the inner bores 24 each run with their common axis 26 outside the circumference 4 a of the impeller 4 (cf. FIG. 1) parallel to the impeller axis 18 ( FIG. 10).

A receiving hub 28 ( FIG. 6) for a rotary bearing 29 for receiving the inner ring 29 a or the outer ring 29 b is formed in the housing 1 on the side 27 opposite the cover 14 .

A receiving hub 30 ( FIG. 6) for a rotary bearing 29 for receiving the inner ring 29 a or the outer ring 29 b is then integrally formed on the cover 14 in an analogous form to the housing 1 .

Receiving means 31 for the connecting means 9 are arranged on the head connection surface 8 ( FIG. 3) and / or on the outer end connection surfaces 11 ( FIG. 2) of the housing 1 . In addition to the groove guides 19 ( FIG. 10) with locknuts 21 provided on the head connection surface 8 , there are also recesses 32 on the end connection surfaces 11 of the housing ( FIG. 2).

The recesses 17 and 32 ( FIGS. 2 and 3) are each equipped as groove guides 19 and designed either as a through hole 33 or as a threaded hole 20 .

In addition to the head connection surface 8, the housing 1 has an outer surface 34 , which is shown in view in FIG. 7. This outer surface 34 is divided into partial connection surfaces 35 .

In contrast, the outer end connection surfaces 11 of the housing 1 are undivided ( FIG. 2) and each represent a receiving surface 36 for load capacities.

The cover 14 is positively connected to the housing 1 via the Zentriernaben 22 (Fig. 5) positively and via the connecting means 9, wherein the connecting means 9 z. B. consist of connecting screws 9 a.

Housing 1 and cover 14 can each be injection molded or cast from molten materials. Manufacture by forging is also possible. The material can e.g. B. consist of a light metal alloy. An iron alloy can also serve as a high-strength material. At lower loads or load capacities, the material consists of plasticizable plastic. The load capacity of the wheel block is higher for materials made from composite material or from materials that form a composite material with other materials.

In FIGS. 9 and 10 it is clear that by the displacement of the receiving means 31 in the guide groove 19 together with the connecting means 9, a permanent adjustment of the Radblockes on the car frame or the carrier 5 o. The like. Can be provided. Referring to FIG. 10, the housing 1 between the legs of a U-shaped carrier 5 is guided or held.

In Figs. 11 and 12, a fastening of the housing 1 and the lid 14 to the cheek surfaces 10 is shown by means of the connecting screws 9 a. Hexagon nuts 43 and adjusting bushes 44 .

Reference list

1 housing
2 swivel seat
3 plain and / or roller bearings
4 impeller
4 a circumference of the impeller
4 b impeller diameter
5 traveling frames
6 case width
7 impeller width
8 head connection surface
8 a side of the head pad
9 lanyards
9 a connecting screw
10 cheek area
11 end connection surface
12 surface area
13 partial surface not lying on
14 cover
14 a thickness of the lid
14 b Lid cross section
15 breakthroughs
16 closure piece
17 recess
18 impeller axle
19 Groove guide
20 threaded hole
21 locknuts
22 centering hub
23 corresponding holes
24 inner holes
25 support bolts
26 axis
27 opposite the lid
28 recording hub
29 pivot bearings
29 a inner ring
29 b outer ring
30 recording hub
31 receiving means
32 recesses
33 through hole
34 outer surface
35 partial connection surface
36 receiving area
37
38 countersinks
39 screw heads
40 nuts
41 hexagon shape
42 hexagon socket head
43 hexagon nut
44 centering bushes

Claims (33)

1. Impeller block with a housing in which the pivot bearing seats for sliding and / or rolling bearings are provided for receiving an impeller which protrudes on at least one side, the housing for the purpose of removing the sliding or rolling bearing and / or the impeller at least after one side, can be disassembled and reconnected into housing parts, characterized in that a block-shaped housing ( 1 ) has at least one head connection surface ( 8 ) which takes up the load-bearing capacity and extends approximately to the housing width ( 6 ) or impeller width ( 7 ) the side (8a) of the connecting means ( 9 ) between the housing ( 1 ) and a supporting structure to be connected to the impeller block, carrier, traveling frame ( 5 ) or the like. 2. impeller block according to claim 1, characterized in that the head connection surface ( 8 ) and / or a cheek surface ( 10 ) and / or an end connection surface ( 11 ) is divided into overlying and non-overlying partial surfaces ( 12 and 13 ). 3. impeller block according to claim 2, characterized in that an overlying partial surface ( 12 ) is undivided, ie has no parting line. 4. impeller block according to one of claims 1 to 3, characterized in that at least on one side of the housing ( 1 ) a releasable cover ( 14 ) is attached, which is centered in the operating position to the pivot bearing surfaces ( 2 ). 5. impeller block according to one of claims 1 to 4, characterized in that the head connection surface ( 8 ) has one or more openings ( 15 ). 6. impeller block according to claim 5, characterized in that the openings ( 15 ) can be closed by means of closure pieces ( 16 ). 7. impeller block according to one of claims 1 to 6, characterized in that the head connection surface ( 8 ) is provided with at least one recess ( 17 ) which runs parallel to the impeller axis ( 18 ). 8. impeller block according to claim 7, characterized in that the recess ( 17 ) is designed as a groove guide ( 19 ), as a through bore or as a threaded bore ( 20 ). 9. impeller block according to one of claims 7 or 8, characterized in that in the groove guides ( 19 ) locknuts ( 21 ) for connecting screws ( 9 a) are transverse adjustable and guided with little play. 10. Impeller block according to one of claims 1 to 9, characterized in that the structure of the housing ( 1 ) is asymmetrical, with at least one cheek surface ( 10 ) of a cover ( 14 ) being closable, the housing width ( 6 ) being a multiple of the thickness ( 14 a) of the cover ( 14 ). 11. impeller block according to one of claims 1 to 10, characterized in that the width ( 6 ) of the housing ( 1 ) is 2 to 40 times the thickness ( 14 a) of the cover ( 14 ). 12. impeller block according to one of claims 1 to 11, characterized in that the cover ( 14 ) to the head connection surface ( 8 ) is set lower. 13. Impeller block according to one of claims 1 to 12, characterized in that the cover ( 14 ) is designed to spring back at least to one end connection surface ( 11 ). 14. impeller block according to one of claims 1 to 13, characterized in that the cover ( 14 ) is provided with centering hubs ( 22 ) which engage in corresponding bores ( 23 ) of the housing ( 1 ). 15. impeller block according to one of claims 1 to 14, characterized in that the cross section ( 14 b) of the cover ( 14 ) thickens outside the impeller diameter ( 37 ). 16. Impeller block according to one of claims 1 to 15, characterized in that counterbores ( 38 ) for screw heads ( 39 ) and nuts ( 40 ) in the thicker cross section ( 14 b) of the cover ( 14 ) are arranged. 17. Impeller block according to one of claims 1 to 16, characterized in that the counterbores ( 38 ) have a hexagonal shape ( 41 ) which alternately receive either an internal hexagon head ( 42 ) or a hexagonal nut ( 43 ). 18. Impeller block according to one of claims 1 to 17, characterized in that the centering hubs ( 22 ) are provided with inner bores ( 24 ) for receiving support bolts ( 25 ) which are concentric with the centering hub ( 22 ). 19. Impeller block according to one of claims 1 to 18, characterized in that the centering hubs ( 22 ), corresponding bores ( 23 ) in the housing ( 1 ) and the inner bores ( 24 ) with their common axis ( 26 ) each outside the circumference ( 4th a) of the impeller ( 4 ) run parallel to the impeller axis ( 18 ). 20. Impeller block according to one of claims 1 to 19, characterized in that in the housing ( 1 ) on the side opposite the cover ( 14 ) ( 27 ) has a receiving hub ( 28 ) for a rotary bearing ( 29 ) for receiving the inner ring ( 29 a ) or the outer ring ( 29 b) is formed. 21. Impeller block according to one of claims 1 to 20, characterized in that a receiving hub ( 30 ) for a rotary bearing ( 29 ) for receiving the inner ring ( 29 a) or the outer ring ( 29 b) is formed on the cover ( 14 ). 22. impeller block according to one of claims 1 to 21, characterized in that on the head connection surface ( 8 ) and / or on the outer end connection surfaces ( 11 ) of the housing ( 1 ) receiving means ( 31 ) for connecting means ( 9 ) are provided. 23 impeller block according to one of claims 1 to 22, characterized in that in addition to the on the head connection surface ( 8 ) provided groove guides ( 19 ) with lock nuts ( 21 ) and recesses ( 32 ) on the end connection surfaces ( 11 ) of the housing ( 1 ) are provided are. 24. Impeller block according to claim 23, characterized in that the recesses ( 17 ; 32 ) are each designed as a groove guide ( 19 ), as a through bore ( 33 ) or as a threaded bore ( 20 ). 25. Impeller block according to one of claims 1 to 24, characterized in that at least one partial connection surface ( 35 ) is formed on the outer surface ( 34 ) of the housing ( 1 ) opposite the head connection surface ( 8 ), from which the impeller ( 4 ) protrudes . 26. Impeller block according to one of claims 1 to 25, characterized in that the outer end connection surfaces ( 11 ) of the housing ( 1 ) are undivided and each represent a receiving surface ( 36 ) for load capacities. 27. Impeller block according to one of claims 1 to 26, characterized in that the cover ( 14 ) with the housing ( 1 ) is positively and / or non-positively connected by means of connecting means ( 9 ) and by means of the centering hubs ( 22 ). 28. Impeller block according to one of claims 1 to 27, characterized in that the housing ( 1 ) and / or the cover ( 14 ) consists of a material to be processed in the molten state. 29. impeller block according to claim 28, characterized, that the material consists of a light metal alloy. 30. impeller block according to claim 28, characterized, that the material consists of an iron alloy. 31. impeller block according to claim 28, characterized, that the material consists of a plasticizable plastic.   32. impeller block according to claim 28, characterized, that the material consists of composite material or with other materials Composite material forms. 33. impeller block according to one of claims 1 to 27, characterized in that the housing ( 1 ) and / or the cover ( 14 ) can be produced by forging.