Pulley assembly

Abstract

The invention relates to a pulley assembly (1) comprising a pulley (2) and a pulley suspension (3), the pulley (2) having a pulley shaft body (4) and a pulley body (5), the pulley body (5) having a pulley shaft receiving opening (6) and the pulley body (5) being rotatably mounted on the pulley shaft body (4) which is guided through the pulley shaft receiving opening (6), the pulley shaft body (4) is mounted in a push-in channel (9, 10) of the pulley suspension (3) with at least two elastic damping bodies (7, 8) coupled therebetween, and wherein the pulley shaft body (4) is fastened in a clamped manner in the push-in channel (9, 10) of the pulley suspension (3) by means of the damping bodies (7, 8) in a fastening position.

Description

Technical Field

[0001] The present invention relates to a pulley assembly, which comprises a pulley and a pulley suspension part, wherein the pulley has a pulley shaft body and a pulley body, the pulley body has a pulley shaft accommodating opening, and the pulley body is rotatably supported on the pulley shaft body guided through the pulley shaft accommodating opening, wherein the pulley shaft body is supported in a push-in channel of the pulley suspension part with at least two elastic shock-absorbing bodies connected in the middle. Background Art

[0002] From the prior art, for example from AT520732A4, known pulley assemblies for conveying equipment, in particular pulley assemblies for transport carriages (Transportwagen) of rack storage systems for goods. Such ground-connected, rail-guided transport carriages are also referred to as shuttles or mobile carriages.

[0003] Such a pulley assembly has at least one (mostly fork-shaped) pulley suspension and a pulley, which has a pulley body and a pulley shaft body. At least one damping body can be additionally provided for vibration reduction. In addition, in AT520732A4 of this type, clamps are provided laterally beside the damping body in order to releasably connect the pulley to the pulley suspension.

[0004] A disadvantage of the prior art is the need for many individual components of the pulley assembly to be damped, with the attendant mechanical weak points and / or many wearing surfaces. Summary of the invention

[0005] The object of the present invention is therefore to at least partially eliminate the disadvantages of the prior art and to specify a pulley assembly which is improved compared with the prior art.

[0006] This object is achieved by a pulley assembly having the features of claim 1 .

[0007] Therefore, in the case of a pulley assembly according to the preamble of claim 1 , it is provided according to the invention that the pulley axle is fastened in a clamping manner in the insertion channel of the pulley suspension by means of a damping body in the fastening position.

[0008] Thus, by means of the pulley assembly according to the invention, a vibration-damping fastening of the pulley in the pulley suspension is established without one or more clips, which results in an improved pulley assembly by saving individual components.

[0009] The elastic damping body thus performs a dual function, namely damping of vibrations in the hitherto known pulley assembly and additionally securing the pulley on the pulley suspension.

[0010] In a preferred embodiment, it can be provided that the pulley shaft body is fastened in a clamping manner in the insertion channel of the pulley suspension in the fastened position only by means of the damping body.

[0011] In this context, the pulley shaft body is merely fastened in the insertion channel of the pulley suspension, which means that the fastening is produced solely by the elasticity of the damping body, at least in the form of a force fit, preferably in the form of a friction fit.

[0012] Additionally, there may also be a positive connection between the respective damping body and the pulley suspension. This may be provided, for example, for positional stabilization when bringing about or maintaining a fastening position and for preventing accidental sliding of the damping body relative to the insertion channel.

[0013] A pulley suspension is a device at which a pulley can be fastened or in other words suspended.

[0014] In a preferred embodiment variant, it can be provided that the pulley suspension is designed in one piece.

[0015] In a preferred embodiment variant, it can be provided that the pulley suspension is designed in one piece and is made of a single material.

[0016] In a preferred embodiment variant, it can be provided that the pulley suspension has:

[0017] - a tensile strength in the range of 50 MPa to 300 MPa, and / or

[0018] - Elastic modulus in the range of 1,500 MPa to 35,000 MPa.

[0019] The pulley may have a rim and a running surface. The rim, the running surface and / or other parts of the pulley may be made of different or single materials.

[0020] In a preferred embodiment variant, it can be provided that the pulley is produced from one or more plastics.

[0021] The pulley shaft receiving opening can be designed as a recess through the pulley, through which the pulley shaft body can be guided.

[0022] The pulley shaft is a materially existing body. The wheel axis of rotation can be guided through the pulley shaft and / or the pulley shaft can be the wheel axis of rotation itself.

[0023] In a preferred embodiment variant, it can be provided that the pulley shaft body is a rotationally symmetrical, physically present body, particularly preferably a cylindrical body.

[0024] In a preferred embodiment variant, it can be provided that the pulley axle body has a hollow cylindrical main body, wherein the hollow cylindrical main body can be closed at the ends with a cover.

[0025] In a preferred embodiment variant, it can be provided that the pulley shaft body is designed in the form of a pin and / or a bolt.

[0026] In a preferred embodiment variant, it can be provided that the pulley shaft body has:

[0027] - a tensile strength in the range of 20 MPa to 300 MPa, and / or

[0028] - Elastic modulus in the range of 1,500 MPa to 35,000 MPa.

[0029] In addition to the body with the running surface, the pulley body can also have a bearing for stable support of the pulley body on the pulley shaft.

[0030] In a preferred embodiment variant, it can be provided that the bearing of the pulley body is a sliding bearing or a rolling bearing, preferably a roller bearing or a ball bearing.

[0031] One or both of the shock absorbing bodies may be constructed from one or more materials.

[0032] In a preferred embodiment variant, it can be provided that one of the damping bodies can be designed in one piece, or preferably a plurality of damping bodies can each be designed in one piece.

[0033] In a preferred embodiment variant, it can be provided that one of the damping bodies can be designed in one piece and made of a single material, or preferably a plurality of damping bodies can each be designed in one piece and made of a single material.

[0034] In a preferred embodiment variant, it can be provided that one of the damping bodies (preferably a plurality of damping bodies) has:

[0035] - a tensile strength in the range of 10 MPa to 60 MPa, and / or

[0036] - a modulus of elasticity in the range of 50 MPa to 300 MPa, and / or

[0037] - A hardness in the range of Shore 50A to Shore 64D.

[0038] The insertion channel is a structural element of the pulley suspension which is designed to receive a pulley shaft body having two damping bodies in a clamped manner.

[0039] In a preferred embodiment variant, it can be provided that the insertion channels are each designed with a U-shaped cross section.

[0040] The fastening position of the pulley assembly is an end position provided for normal operation of the pulley assembly, in which the pulley shaft is supported in the insertion channel of the pulley suspension with at least two elastic damping bodies interposed therebetween.

[0041] In other words, the fastening position is the end position in which the pulley shaft is supported in the insertion channel of the pulley suspension with at least two elastic damping bodies connected in between, and wherein preferably the two elastic damping bodies are present at at least one stop of the pulley suspension, preferably at two stops.

[0042] In a preferred embodiment variant, it can be provided that the pulley assembly has an electrical feed-through resistor, preferably at 10 3 to 10 12 Electrical resistance in the ohm range.

[0043] It can also be provided that the pulley assembly is designed to provide electrical insulation.

[0044] As a material for the pulley assembly, in particular for the pulley suspension and / or the pulley and / or the pulley shaft and / or the pulley body and / or the damping body, plastics, preferably one or more of the following plastic types, can be provided:

[0045] Polyolefin, polyamide (PA), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyetheretherketone (PEEK), polyketone (PEK), polyphenylene sulfide (PPS), polyoxymethylene (POM).

[0046] In order to reinforce the original material for the pulley assembly, in particular for the pulley suspension and / or the pulley and / or the pulley shaft and / or the pulley body and / or the damping body, preferably one or more of the above-mentioned plastics, a reinforcing substance can be provided. One or more of the following materials can be provided as a reinforcing substance:

[0047] Glass, Carbon, Aramid, Basalt.

[0048] The reinforcement substance can be provided in the form of reinforcing fibers, preferably carbon fibers, in a base material of the pulley assembly having a mass fraction in the range of 5% to 60% and / or having a fiber length in the range of 0.1 mm to 15 mm.

[0049] Carbon fibers can also be called carbon fiber, carbon fiber or carbonaceous fiber.

[0050] The pulley assembly as a whole or parts thereof, in particular the pulley suspension and / or the pulley and / or the pulley shaft and / or the pulley body and / or the damping body, can preferably consist of plastic, wherein the plastic has electrically conductive fibers, preferably carbon fibers.

[0051] The antistatic effect prevents electrostatic charging, especially electrostatic charging caused by the rolling of the pulley assembly on different running tracks. For antistatic purposes, other conductive fibers and / or particles and / or the composition of the conductive coating can also be provided.

[0052] In order to improve a sliding bearing, for example a swivel sliding bearing of a pulley assembly, an internal lubricant can be provided, i.e. integrated into the material of the corresponding component or arranged in the material. As an internal lubricant for the pulley assembly, in particular for the pulley suspension and / or the pulley and / or the pulley shaft and / or the pulley body and / or the damping body, one or more of the following materials can be provided:

[0053] Polytetrafluoroethylene (PTFE), high-density polyethylene (HD-PE), ultra-high molecular weight polyethylene (UHMW-PE), perfluoropolyether (PFPE), molybdenum disulfide (MoS2), graphite, siloxane, oil.

[0054] The built-in lubricating substance can be provided in the material of the pulley assembly in the form of filler particles with a mass fraction in the range of 0.2% to 30%.

[0055] For the sake of completeness, it is pointed out that in the description of the present invention, the numerals used, such as one, two, three, etc., essentially only describe the presence of a minimum number of features of the pulley assembly according to the present invention. Of course, the individual features or components can also be present in a larger number. Thus, the pulley assembly according to the present invention can, for example, have more than one pulley, more than two damping bodies, etc. In this sense, for example, the numeral "one" should therefore be understood in this regard as meaning "at least one", etc.

[0056] Further advantageous embodiments of the arrangement are defined in the dependent claims.

[0057] According to a preferred embodiment of the pulley assembly, it is provided that the pulley shaft can be introduced into the insertion channel of the pulley suspension by means of elastic deformation of at least one of the damping bodies and can be removed from the insertion channel.

[0058] According to a preferred embodiment of the pulley assembly, it is provided that the pulley shaft body can be introduced into the insertion channel of the pulley suspension part by means of elastic deformation of the damping body and can be removed from the insertion channel.

[0059] According to a preferred embodiment of the pulley assembly, it is provided that the pulley shaft body is harder than at least one of the damping bodies.

[0060] According to a preferred embodiment of the pulley assembly, it is provided that the pulley shaft body is harder than the damping body.

[0061] In a preferred embodiment variant, it can be provided that the pulley shaft body has:

[0062] - a tensile strength which is two to five times greater than the tensile strength of one, preferably a plurality of, of the damping bodies, and / or

[0063] - Modulus of elasticity: This modulus of elasticity is two to thirty times the modulus of elasticity of one, preferably a plurality of, of the damping bodies.

[0064] According to a preferred embodiment of the pulley assembly, it is provided that at least one of the damping bodies in the fastened position bears directly against at least one wall of the pulley suspension, which wall delimits one of the insertion channels.

[0065] According to a preferred embodiment of the pulley assembly, it is provided that the damping bodies in the fastened position respectively bear directly against at least one wall of the pulley suspension, which delimits one of the insertion channels.

[0066] According to a preferred embodiment of the pulley assembly, it is provided that at least one of the damping bodies is designed as a cap which is preferably attached to the end of the pulley shaft in a non-destructively removable manner.

[0067] According to a preferred embodiment of the pulley assembly, it is provided that a plurality of the damping bodies are designed as caps which are preferably attached to the ends of the pulley shaft in a manner that allows them to be removed without causing damage.

[0068] In another embodiment variant, it can be provided that at least one of the damping bodies, preferably a plurality of the damping bodies, is designed as a cap which is preferably non-removably attached to the end of the pulley shaft body (preferably injection-molded by means of a molding method).

[0069] According to a preferred embodiment of the pulley assembly, it is provided that in the fastened position at least one of the damping bodies, in addition to the clamping fastening, forms a latching connection with at least one wall of the pulley suspension which delimits one of the insertion channels.

[0070] According to a preferred embodiment of the pulley assembly, it is provided that a plurality of the damping bodies in the fastened position, in addition to the clamping fastening, each form a latching connection with at least one wall of the pulley suspension, which delimits one of the insertion channels.

[0071] In the latch connection, the parts to be connected can be matched and oriented by form fit and can be releasably fixed by spring force in a form fit. Such latch connections are known in various embodiments, of which the following is a particularly preferred embodiment variant.

[0072] According to a preferred embodiment of the pulley assembly, the latching connection portion has a latching connection protrusion as a first latching connection element and a latching connection receptacle as a second latching connection element, wherein the latching connection protrusion can be elastically latched into the latching connection receptacle, wherein one of the latching connection elements is constructed at one of the damping bodies and the other of the latching connection elements is constructed at a wall of the pulley suspension portion, the wall limiting one of the insertion channels.

[0073] According to a preferred embodiment of the pulley assembly, the corresponding latching connection portion has a latching connection protrusion as a first latching connection element and a latching connection receptacle as a second latching connection element, wherein the latching connection protrusion can be elastically latched into the latching connection receptacle, wherein one of the latching connection elements is constructed at one of the damping bodies, and the other of the latching connection elements is constructed at a wall of the pulley suspension portion, which wall limits one of the insertion channels.

[0074] In a preferred embodiment variant, it can be provided that the latching projection and / or the latching receptacle is formed on and / or in the pulley suspension.

[0075] In a preferred embodiment variant, it can be provided that the latching projection and / or the latching receptacle itself is elastic and / or elastically supported, preferably rounded. The latching projection can be designed as a pin.

[0076] According to a preferred embodiment of the pulley assembly, the insertion channel is constructed to extend longitudinally between an introduction opening for introducing the corresponding shock-absorbing body (preferably pointing downward in the operating position of the pulley assembly) and a stop for the corresponding shock-absorbing body, wherein the corresponding shock-absorbing body rests on the corresponding stop in the fastening position.

[0077] The operating position of a pulley assembly is the position which the pulley assembly occupies when used as intended.

[0078] It is also conceivable to design the insertion channel differently from the embodiment presented below, so that the pulley is not introduced into the insertion channel parallel to the pivot axis of the pulley suspension, but instead is introduced perpendicularly to the pivot axis of the pulley suspension. The insertion channel can also extend horizontally when the pulley assembly is in the operating position and traveling on level ground. For this embodiment variant, please refer to AT520732A4.

[0079] In a preferred embodiment variant, it can be provided that the respective damping body in the fastened position bears against the stop elements of the pulley suspension with half of its circumference, preferably 180° of its circumference. These stop elements of the pulley suspension can delimit the respective insertion channels.

[0080] According to a preferred embodiment of the pulley assembly, it is provided that at least one of the damping bodies has a protruding collar and at least one wall of the pulley suspension has a collar receiving channel for receiving the collar, the at least one wall delimiting one of the insertion channels.

[0081] According to a preferred embodiment of the pulley assembly, the plurality of damping bodies each have a protruding collar, and at least one corresponding wall of the pulley suspension portion has a collar receiving channel for receiving the collar, and the at least one corresponding wall defines a corresponding one of the insertion channels.

[0082] In a preferred embodiment variant, it can be provided that the collar receiving channel for receiving the collar is a groove and forms a positive connection with a protruding collar of the at least one damping body introduced into the insertion channel.

[0083] In a preferred embodiment variant, it can be provided that at least one of the shock-absorbing bodies, preferably a plurality of the shock-absorbing bodies, has a cylindrical base body, wherein preferably the base body is a hollow cylinder and is closed at the ends with a cover, wherein particularly preferably the cover has a protruding collar and / or a latching connection protrusion and / or a latching connection receptacle.

[0084] In a preferred embodiment variant, it can be provided that the collar receiving channel has an at least partially longitudinally extending groove, wherein the groove of the collar receiving channel extends from the introduction opening to the stop element.

[0085] According to a preferred embodiment of the pulley assembly, it is provided that the pulley suspension is constructed as a fork having two fork arms, wherein one of the insertion channels is constructed in each fork arm of the fork arms, and / or the pulley suspension can be supported or supported so as to be pivotable about a pivot axis (preferably extending orthogonally to the pulley axle).

[0086] In a preferred embodiment variant, it can be provided that the fork is designed in one piece.

[0087] In a preferred embodiment variant, it can be provided that the fork is designed in one piece and is made of a single material.

[0088] In a preferred embodiment variant, it can be provided that the swivel bearing is arranged in and / or on the pulley suspension, wherein the pulley assembly is connected or can be connected to a conveying device, such as a carriage or a carriage assembly, by means of the swivel bearing, and the pulley suspension can be supported or supported so as to be swivelable about a swivel axis of the swivel bearing (preferably extending orthogonally to the pulley axle).

[0089] The swivel bearing can be designed as a swivel plain bearing or a swivel rolling bearing, preferably as a swivel ball bearing or a swivel roller bearing.

[0090] In a preferred embodiment variant, it can be provided that the swivel bearing is constructed as a component of the pulley suspension, that is, in other words, directly as a sub-region of the pulley suspension. However, the swivel bearing can also be manufactured as a separate component and then installed in the pulley suspension.

[0091] By using a wobble bearing in the form of a wobble plain bearing, two sliding surfaces can slide along one another with the lowest possible coefficient of friction.

[0092] In a preferred embodiment variant, it can be provided that one of the sliding surfaces comprises metal, preferably steel, or consists of metal, preferably steel, and the other of the sliding surfaces comprises plastic or consists of plastic.

[0093] In a preferred embodiment variant, it can be provided that the sliding surface and / or the pivot plain bearing and / or the entire component of the pulley assembly and / or the entire pulley assembly has an integrated lubricant.

[0094] As built-in lubricants in the swivel plain bearing, for example, fluoropolymers, polyolefins, silicones, sulfides such as MOS2, graphite in various forms, siloxanes or oils can be used. The built-in lubricant can be embedded directly in the material of the pulley suspension. BRIEF DESCRIPTION OF THE DRAWINGS

[0095] The following further details and advantages of the preferred embodiments of the present invention are described in more detail with reference to the accompanying drawings according to the accompanying drawings.

[0096] Figure 1 Shown: a perspective view of a conveying device having six pulley assemblies according to the invention;

[0097] Figure 2 Shown: a perspective exploded view of an embodiment of a pulley assembly according to the present invention;

[0098] Figures 3 to 7 show: Figure 2 Various views and illustrations of pulley assemblies in FIG.

[0099] Figures 8 to 14 show: Figure 2 Various views of a pulley of a pulley assembly with and without a shock absorbing body;

[0100] Figures 15 to 20 Shown: An uncut side view and a sectional view for each of three exemplary embodiments of the connection of a pulley assembly to a mounting. DETAILED DESCRIPTION

[0101] Figure 1 A perspective view of a conveying device 22 in the form of a carriage having six pulley assemblies 1 according to the invention is shown.

[0102] As shown here by way of example, the conveyor system 22 can have three container areas, wherein each of the container areas can be provided with a pulley assembly 1 on both sides.

[0103] The conveying device 22 can be moved, preferably rolled, in at least one direction on the running rail 23 by means of the pulley assembly 1 .

[0104] Figure 2 A perspective exploded view of an embodiment of a pulley assembly 1 according to the invention is shown.

[0105] As in Figure 2 As can be seen in the figure, the pulley assembly (1) comprises a pulley (2) and a pulley suspension part (3), wherein the pulley (2) has a pulley shaft body (4) and a pulley body (5), the pulley body (5) has a pulley shaft receiving opening (6), and the pulley body (5) is rotatably supported on the pulley shaft body (4) guided through the pulley shaft receiving opening (6), wherein the pulley shaft body (4) is supported in the push-in channel (9, 10) of the pulley suspension part (3) with at least two elastic damping bodies (7, 8) connected in the middle, wherein the pulley shaft body (4) is fastened in the push-in channel (9, 10) of the pulley suspension part (3) in a clamping manner by means of the damping bodies (7, 8) in the fastened position.

[0106] exist Figure 2 In the embodiment, the pulley suspension part 3 is implemented as a single piece, which is a fork-shaped part and has a first fork arm 19, a second fork arm 20 and a fork frame (or fork ship, Gabelschiff) 25 connecting the fork arms 19 and 20 accordingly.

[0107] The first insertion channel 9 and the second insertion channel 10 are located on the inner sides of the first fork arm 19 and the second fork arm 20, wherein Figure 2Only the first push channel 9 can be seen.

[0108] like Figure 2 As shown in FIG, the insertion channels 9, 10 can have an insertion opening 15 arranged at the lower edge of the respective fork arm 19, 20, through which the pulley 2 can be introduced by means of the damping bodies 7, 8, preferably from bottom to top parallel to the pivot axis 21.

[0109] like Figure 2 As shown in , the fork 25 can have a swivel axis 21 (preferably extending orthogonally to the pulley shaft 4), about which the pulley suspension 3 can be supported or supported swivelably. Therefore, the fork 25 has a swivel sliding bearing for the swivel axis 21, wherein, as shown in Figure 2 In the exemplary embodiment shown in FIG. 8 , the pivot plain bearing is an integrated component of the pulley suspension 3 .

[0110] like Figure 2 As shown in FIG. 1 , the pulley 2 may include a pulley body 5 , a pulley shaft body 4 , a cover 26 for each of the two end sides of the pulley body 5 , and a first damping body 7 and a second damping body 8 for each of the end sides of the pulley shaft body 4 .

[0111] The pulley body 5 has a pulley shaft receiving opening 6 which forms a continuous hole in the center of the pulley body 5 and through which the pulley shaft body 4 can be guided.

[0112] The pulley shaft body 4 may be a cylindrical component having a first end 11 and a second end 12 , wherein preferably one of the damping bodies 7 , 8 is arranged at one of the ends 11 , 12 , respectively.

[0113] Figures 3 to 7 Shows Figure 2 Various views and illustrations of the pulley assembly 1 in FIG.

[0114] Figure 3 A perspective view of the pulley assembly 1 is shown in a fastened position.

[0115] Figure 4 Display in Figure 3 sectional view of the pulley assembly 1 in the fastened position in FIG. 1 , wherein the section plane extends through the center point of the pulley 2 parallel to the pivot axis 21 and parallel to the wheel rotation axis 24 .

[0116] Figure 5 Shows the Figure 3 sectional view of the pulley assembly 1 in the fastened position in FIG. 2 , wherein the section plane extends orthogonally to the pivot axis 21 and parallel to the wheel rotation axis 24 through the center point of the pulley 2 .

[0117] exist Figures 3 to 5It can be clearly seen that the pulley 2 is connected to the pulley suspension 3 with the first damping body 7 and the second damping body 8 connected in between. In the position shown, the pulley 2 is located between the fork arms 19 and 20 of the pulley suspension 3, wherein the damping bodies 7 and 8 are introduced along the insertion channels 9 and 10 starting from the introduction opening 15 of the first insertion channel 9 and the second insertion channel 10 to the stop 16 of the insertion channels 9, 10, preferably to a plurality of stops 16. The position shown corresponds to the fastening position of the pulley assembly 1.

[0118] If, in addition to the fastening position in the exemplary embodiment shown, the insertion channels 9, 10 point downward, for example if the pulley assembly 1 is arranged below the conveying device 22, the pulley assembly 1 is also in the operating position in this exemplary embodiment. Figure 1 The running position can also be seen in the figure.

[0119] The stop 16 of the insertion channel 9 , 10 can be embodied in the form of a semicircular closure of the insertion channel 9 , 10 .

[0120] As in Figure 6 and Figure 7 As can be seen particularly clearly in FIG. 1 , the first insertion channel 9 and the second insertion channel 10 each have an insertion opening 15 .

[0121] The first insertion channel 9 and / or the second insertion channel 10 can be provided with at least one shaft collar receiving channel 18, preferably combined with at least one shaft collar receiving channel 18, so that at least one shaft collar 17 of the first shock-absorbing body 7 and / or the second shock-absorbing body 8 can be guided along the first insertion channel 9 and / or the second insertion channel 10 to the fastening position and can be retained there by means of form fit.

[0122] As in Figures 3 to 7 As can be seen in FIG. 1 , it can be provided that the collar receiving channel 18 of one of the two insertion channels 9 , 10 respectively forms a stop 16 by a semicircular course at the end of the respective insertion channel 9 , 10 .

[0123] The pulley shaft 4 and thus the pulley 2 are fastened in a clamping manner on the pulley suspension 3 in the fastened position (preferably exclusively) by means of the damping bodies 7 and 8. For this purpose, the damping bodies 7 and 8 are expediently elastically deformed when introduced into the corresponding insertion channels 9 and 10. In a simple embodiment, this type of clamping fastening can even be based purely on friction fit.

[0124] However, in the embodiment shown here, in addition to the friction fit, it is also provided that in the fastening position of the pulley assembly 1, at least one latching connection projection 13 of the first damping body 7 and / or the second damping body 8 is latched into at least one latching connection receptacle 14 of the first fork arm 19 and / or the second fork arm 20. In this way, the retention of the pulley assembly 1 in the fastening position can be ensured in a form-fitting manner (preferably in addition to the fastening in a clamping manner) and / or slipping of the damping bodies can be avoided. In this embodiment, the engagement of the damping bodies 7 and 8 in the corresponding insertion channels 9, 10 and also the stop 16 ensures an additional form-fitting fastening of the pulley shaft body 4 and therefore the pulley 2 in the fastening position of the pulley suspension 3.

[0125] Figure 6 A perspective view of a pulley assembly 1 is shown, wherein the pulley 2 is not in a fastened position.

[0126] Figure 7 A sectional view of the pulley assembly 1 is shown, wherein the pulley 2 is likewise not in the fastened position. The section plane here runs orthogonally to the pivot axis 21 and parallel to the wheel rotation axis 24 through the wheel rotation axis 24 of the pulley shaft 4 of the pulley 2 .

[0127] Figures 8 to 14 Shows Figure 2 Various views of the pulley 2 of the pulley assembly 1 with or without damping bodies 7, 8;

[0128] Figure 8 The pulley 2 with the pulley body 5 and the pulley shaft body 4 is shown in a perspective view without the damping bodies 7 and 8 .

[0129] Fig. 9 show Figure 8 A top view of the pulley 2 in FIG.

[0130] Fig.10 show Figure 8 A front view of the pulley 2 in FIG.

[0131] Fig.11 The pulley 2 is shown in a perspective view with the pulley body 5 , the pulley shaft body 4 and the two damping bodies 7 , 8 , wherein only the first damping body 8 can be seen.

[0132] Fig.12 show Fig.11 2 , wherein the section plane extends through the wheel rotation axis 24 .

[0133] Fig.13 A perspective view of the pulley 2 with the pulley body 5 and the pulley shaft 4 is shown, wherein Fig.11 In contrast, neither of the two damping bodies 7 and 8 is shown.

[0134] Fig.14 show Fig.13 2 , wherein the section plane extends through the wheel rotation axis 24 .

[0135] exist Fig.13 and Fig.14 As can be seen in FIG. 1 , the pulley shaft body 4 can be a hollow cylindrical member having a closed end and an open end, wherein the open end is Fig.13 It can be seen in.

[0136] exist Figure 4 , Figure 5 , Figure 7 , Fig.12 and Fig.14 In the figure, the bearing of the pulley 2 can be particularly clearly seen. The bearing can be a sliding bearing which is designed as a separate component or an integrated component of the pulley 2, or, as shown in the exemplary embodiment, a rolling bearing 27, in particular a ball bearing.

[0137] The rolling bearing 27 shown as part of the pulley 2 connects the pulley body 5 and the pulley shaft body 4 and transmits forces, preferably compression forces, between these two components, while at the same time reducing rolling friction during a rotation of the pulley body 5 about the wheel rotation axis 24 .

[0138] In order to protect the rolling bearing 27 from external influences such as contaminants or mechanical influences, covers 26 are provided on both end sides of the pulley 2 so that the rolling bearing 27 is shielded from the outside, preferably completely shielded.

[0139] Figures 15 to 20 A non-cut side view and a cut side view are shown for each of three embodiments of the attachment of the pulley assembly 1 to the fitting 28 of the conveying device 22 .

[0140] Fig.15 and Fig.16 A first embodiment is shown in which the pulley assembly 1 is connected to the fitting 28 by means of a pin 29. In this case, washers 30 are arranged between the fork 25 of the pulley assembly 1 and the fitting 28, respectively at the upper side and at the lower side of the pulley suspension 3.

[0141] Forces can be transmitted between the fitting 28 and the pivoting plain bearing of the pulley assembly 1 via the pin 29 and the washer 30. In this way, a pivotable support of the pulley assembly 1 is provided.

[0142] Therefore, in this first embodiment, sliding occurs between the washer 30 and the pin 29 and the pulley suspension 3 .

[0143] and Fig.15 and Fig.16 In contrast to the first embodiment, Fig.17 and Fig.18 The pulley assembly 1 is shown attached to the fitting 28 without a spacer 30 between the pulley assembly and the fitting. Fig.15 and Fig.16 In the second embodiment, the fork 25 of the pulley suspension part 3 has lower protrusions at the upper side and the lower side of the pulley suspension part 3, respectively.

[0144] In this second embodiment, sliding therefore occurs between the fitting 28 and the pin 29 and the projection of the pulley suspension 3 .

[0145] and Figures 15 to 18 In contrast to the first and second embodiments, Fig.19 and Fig. 20 The pulley assembly 1 is shown attached at the fitting 28 with a washer 30 arranged at the underside of the pulley suspension 3 . Fig.15 and Fig.16 The gasket arranged at the upper side of the pulley suspension part 3 and Fig.17 and Fig.18 The projection arranged on the upper side of the pulley suspension 3 is replaced by a correspondingly designed pin head of a pin 29. The pin head of the pin 29 and the mounting part 28 are designed here so that the pin 29 not only enables the pulley assembly 1 to be connected to the mounting part, but also provides a placement surface for the upper side of the pulley suspension 3.

[0146] In this third embodiment, sliding therefore occurs between the pin 29 , in particular the pin head, and between the washer 30 and the pulley suspension 3 .

[0147] The embodiments shown are not to be understood as limiting, but can be combined with one another as required. Thus, for example, it is conceivable that in one embodiment the spacer 30 is combined with a projection of the pulley suspension 3, or in other words, that the spacer 30 is placed on the projection of the pulley suspension 3. It can also be provided that the pin 29 is connected by means of a wide pin head (e.g. Fig. 20 ) either by means of a collar spaced apart from the pin head or directly on the pulley suspension 3 .

[0148] As already explained, in the illustrated embodiment it can be provided that one of the sliding surfaces (preferably the sliding surface of the pin 29 and / or the fitting 38) has metal, preferably steel or aluminum, or consists of metal, preferably steel, while the other sliding surface (preferably the sliding surface of the pulley suspension 3) has plastic or consists of plastic.

[0149] In a preferred embodiment variant, at least one of the sliding surfaces can be part of a fitting 28 of the conveying device 22 and / or part of a pin 29 and the other sliding surface can be part of the pulley assembly 1 , preferably the pulley suspension 3 .

[0150] As already explained, in the illustrated embodiment it can be provided that the sliding surface of the pulley suspension 3 and / or the swivel bearing, preferably the swivel sliding bearing, and / or a part of the pulley assembly, preferably the pulley suspension 3, and / or the entire pulley assembly 1 have an internal lubricant.

[0151] For a particularly favorable friction coefficient, it can be provided that during the oscillation of the pulley assembly 1, sliding occurs between at least one sliding surface made of metal and at least one sliding surface made of plastic, preferably plastic with a built-in lubricant, by means of a oscillating plain bearing.

[0152] The pivot bearing, preferably the pivot plain bearing, of the pulley assembly 1 and / or the pulley assembly 1 as a whole can have a load capacity of 1,000 N, preferably 4,000 N. Preferably, as is also provided in the example here, a part of the pivot plain bearing is formed directly in the pulley suspension 3 .

[0153] List of reference numerals:

[0154] 1 pulley assembly

[0155] 2 pulleys

[0156] 3 pulley suspension

[0157] 4 pulley shaft

[0158] 5 pulley body

[0159] 6 Pulley shaft receiving opening

[0160] 7First shock absorber

[0161] 8 Second shock absorber

[0162] 9First push channel

[0163] 10 Second push channel

[0164] 11 First end of the pulley shaft

[0165] 12 The second end of the pulley shaft

[0166] 13 Lock connection protrusion

[0167] 14 card lock connection accommodating part

[0168] 15Introduction opening

[0169] 16 stopper

[0170] 17 Shaft collar

[0171] 18 Collar receiving channel

[0172] 19 First fork arm

[0173] 20 Second fork arm

[0174] 21 Swing axis

[0175] 22Conveying equipment

[0176] 23 running tracks

[0177] 24 wheel rotation axis

[0178] 25 Fork

[0179] 26 Covering parts

[0180] 27 Rolling bearings

[0181] 28 Assemblies

[0182] 29 pins

[0183] 30 gaskets

Claims

1. A pulley assembly (1), comprising a pulley (2) and a pulley suspension (3), wherein: The pulley (2) comprises a pulley shaft (4) and a pulley body (5), wherein the pulley body (5) comprises a pulley shaft receiving opening (6), and the pulley body (5) is rotatably supported on the pulley shaft (4) guided through the pulley shaft receiving opening (6), wherein the pulley shaft (4) is supported in a push-in channel (9, 10) of the pulley suspension part (3) with at least two elastic damping bodies (7, 8) connected in between, and is characterized in that the pulley shaft (4) is fastened in a clamping manner in the push-in channel (9, 10) of the pulley suspension part (3) in a fastened position by means of the damping bodies (7, 8).

2. The pulley assembly (1) according to claim 1, wherein: The pulley shaft (4) can be introduced into and removed from the insertion channel (9, 10) of the pulley suspension (3) by means of elastic deformation of at least one of the damping bodies (7, 8), preferably a plurality of the damping bodies (7, 8).

3. The pulley assembly (1) according to claim 1 or 2, wherein: The pulley shaft body (4) is harder than at least one of the shock absorbing bodies (7, 8) or a plurality of the shock absorbing bodies (7, 8).

4. The pulley assembly (1) according to any one of claims 1 to 3, wherein: At least one of the damping bodies (7, 8), preferably a plurality of the damping bodies (7, 8), in the fastened position, preferably each directly bears against at least one wall of the pulley suspension (3), which delimits one of the insertion channels (9, 10).

5. The pulley assembly (1) according to any one of claims 1 to 4, wherein: At least one of the damping bodies (7, 8) is constructed as a cover, and the cover is preferably mounted on the end (11, 12) of the pulley shaft body (4) in a manner that can be removed without damage; preferably, multiple damping bodies (7, 8) are constructed as covers, and the covers are preferably mounted on the preferred ends of the pulley shaft body in a manner that can be removed without damage.

6. The pulley assembly (1) according to any one of claims 1 to 5, wherein: At least one of the damping bodies (7, 8), preferably a plurality of the damping bodies (7, 8), in addition to the clamping fastening in the fastening position, preferably respectively forms a latching connection with at least one wall of the pulley suspension (3), the at least one wall delimiting one of the insertion channels (9, 10).

7. The pulley assembly (1) according to claim 6, wherein: Preferably, the corresponding latching connection has a latching connection protrusion (13) as a first latching connection element and a latching connection receptacle (14) as a second latching connection element, wherein the latching connection protrusion (13) can be elastically latched into the latching connection receptacle, wherein one of the latching connection elements is constructed at one of the damping bodies (7, 8) and the other of the latching connection elements is constructed at a wall of the pulley suspension part (3), which wall limits one of the insertion channels (9, 10).

8. The pulley assembly (1) according to any one of claims 1 to 7, wherein: The insertion channels (9, 10) are each constructed to extend longitudinally between an introduction opening (15) for introducing the respective damping body (7, 8) and pointing downwards in the operating position of the pulley assembly (1), and a stop (16) for the respective damping body (7, 8), wherein the respective damping body (7, 8) abuts against the respective stop (16) in the fastening position.

9. The pulley assembly (1) according to any one of claims 1 to 8, wherein: At least one of the damping bodies (7, 8), preferably a plurality of the damping bodies (7, 8) has a protruding collar (17), and at least one wall of the pulley suspension (3) has a collar receiving channel (18) for receiving the collar (17), the at least one wall delimiting one of the insertion channels (9, 10).

10. The pulley assembly (1) according to any one of claims 1 to 9, wherein: The pulley suspension (3) is designed as a fork with two fork arms (19, 20), wherein one of the insertion channels (9, 10) is formed in each of the fork arms (19, 20) and / or the pulley suspension (3) is supported or supported so as to be pivotable about a pivot axis (21) which preferably extends orthogonally to the pulley axle (4).

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