MODULAR KIT FOR BEARING INSTALLATION

Description

MODULAR KIT FOR BEARING INSTALLATION This patent application for industrial invention concerns a universal bearing support ISO or ANSI, which allows the installation of bearings from different suppliers. The support allows the use of ISO or ANSI bearings of any brand with modular protection and fastening system. Field of technology The use of various types of bearings to support rotating parts is known in the state of the art. Bearings They are known in various types of construction and for various types of different applications. It is also known that the supplier of each bearing provides the installation specifications of the bearing, which It must typically be installed inside a cage of the dimensions indicated by the manufacturer. In fact, for a bearing (2) with axial dimension Y, as shown in figure 1, the cage (1) must have a housing dimension X, greater than the axial dimension Y of the bearing (2). The difference between these two quota is recovered from the cap (3), which has an axial dimension X'. Assembly problems arise when, for example for maintenance reasons, it is necessary to change the brand of the bearing supplier. For the same bearing diameter, the bearing of another supplier may have an axial dimension (Y') smaller than the axial dimension of the reference bearing, or an axial dimension (Y'') greater than the axial dimension of the reference bearing. The relative Assembly problems are exemplified in figures 2 and 3. A very important reason why one wants to changing the type of bearing is the need to have bearings that can withstand greater axial loads, and consequently they have a larger footprint. Conversely, with smaller loads, larger bearings can be chosen. economical and space-saving. Technical problem The technical problem of providing a bearing cage which, once the bearing has been fixed, remains unsolved. diameter, allows the installation of bearings from different suppliers and also with different sealing systems. Currently, bearings from different brands often require complex and expensive modifications to the bearing structures. existing support, with risks of incorrect installation, loss of system performance and increased costs maintenance Purpose of the invention The purpose of this invention is to provide a modular bearing installation kit that overcomes the limits related to the manufacturing methods known to the state of the art and which allow the installation of bearings of different types suppliers and also with different sealing systems as well as adapting to different constraint systems, for allow it to be installed in conjunction with the various machines for which it is required. The modular kit described allows for quick and easy adaptation of bearings from different suppliers, avoiding the need for costly structural modifications or custom adaptations. This significantly reduces maintenance times and improves the versatility of the entire system. Brief description of the invention The invention achieves the intended purposes as it is a modular kit for the installation of bearings, comprising: a universal support (1) equipped with a housing (11) for the installation of a bearing (2); an interchangeable front cover (3) and rear cover (5); an interposed locking ring (4) between said front cover (3) and said bearing (2), to secure said bearing (2) against a stop at the purpose provided in said housing (11); fixing means (8) for anchoring the support to a machine or external structure characterized by the fact that each of the aforementioned components (front cover, rear cover, locking ring and fastening means) is selectable from a group of devices with different performances, united by the ability to be fixed to said support (1), by the fact that the choice of covers with different performances allow to install in the same support (1) space bearings variable axial and to provide different protection performances and by the fact that the choice of fixing means (8) with different geometry allows the support to be anchored to an external machine or structure with different positioning of said support (1) with respect to said machine or structure. Description of the figures Figures 1, 2 and 3 show schematically different coupling situations between bearing and support; in figures 4 and 5 two exploded views of preferred ways of realising the kit are shown according to the invention; in figure 6 various types of fastening means included in the kit are shown according to the invention; in figures 7, 8 and 9 various types of supports included in the kit according to the invention are shown; Figure 10 shows various types of lids included in the kit according to the invention, shown in detail in figures 11 to 18. Description With reference to the attached figure 4, the kit according to the invention comprises a support (1) equipped with a housing (11) for the installation of a bearing (2), a front cover (3) and a ring (4), placed between the front cover (3) and the bearing (2) for locking it against the stop for this purpose arranged in the housing (11) of the support (1). The kit also includes a rear cover (5) and rings front (6) and rear (7) sealing, as well as constraint means (8) for constraining said support to a machine or in any case to an external structure. The kit is characterised by the fact that each of the said covers front (3), ring (4), rear cover (5), front (6) and rear (7) sealing rings and means of constraint (8) is chosen from a respective group of devices, with different performances but united by the fact that can be constrained to said support (1). The ring (4) is also chosen from a group of devices with different performance and, specifically, with different radial thickness and different axial dimensions. For this purpose, it is specified that the support (1) includes fixing holes (12) in its front part. for front cover constraint (3), fixing holes in the rear for cover constraint rear and fixing holes (13) which allow it to be fixed to the fastening means. Preferably but not limited to the holes (13) for fixing to the fastening means are located in the part bottom of the support. In this case in a first way of realizing the support included in the kit according to the invention comprises two threaded fixing holes at its base; in a second construction method the support includes four threaded fixing holes corresponding to its base. Without prejudice to the presence of the fixing holes, other possible geometric configurations (100, 101, 102) of the support are shown in the attached figures. All types of front (3) and rear (5) covers as well as the fastening means (8) included in the kit according to the invention they have holes in a suitable position to allow them to be fixed to the support (1) by means of the holes just described and prepared for this purpose on the support itself. Going into the merits of the functionality of the various interchangeable lids, the kit according to the invention comprehends: - a front (31) and rear (51) cover for use with axial sealing rings or without sealing rings; - a front (32) and rear (52) cover for use with standard sealing rings; - a front (33) and rear (53) cover for use with cassette sealing rings; - a front (34) and rear (54) cover for use with labyrinth sealing rings. The front cover (31) and rear cover (51) for use with axial sealing rings or without sealing rings They are made in the form of a circular plate with a central hole (311, 511) for the passage of the axle which is constrained the internal cage of the bearing and a series of fixing holes (312, 512) for the constraint to the support (1). The front and rear cover for use with standard sealing rings (32, 52) and for use with cassette sealing rings (33, 53) are provided with a seat (321, 331, 521, 531) to accommodate the sealing ring; the front cover (34) and rear cover (54) for use with labyrinth sealing rings are instead made in two parts, which are inserted radially into the seat (91) present for this purpose on the sealing ring labyrinth (9). The technical advantage deriving from the presence of a plurality of interchangeable lids is evident: this allows the user to change the degree of protection of the bearing without changing the support. With reference to the support (1), it is noted that the same can be used with or without fixing bases (8), since the machine or structure on which the bearing is mounted may already be prepared with fixing holes suitable for the support constraint (1). However, since it is not certain that this will happen, the kit according to the invention preferably comprises a plurality of bases (8). The bases included in the kit are all equipped with holes for fixing to the support (1) and also: • a first type of base (81) in the form of a flat plate with 2 additional anchoring holes (811); • a second type of base (82) in the form of a flat plate with 4 additional anchoring holes (821); • a third type of base (83) in the form of an angular support, with a plurality of holes and / or slots (831) anchoring positioned on the face adjacent to the support fixing face; • a fourth type of base (84) in the form of an angular support, comprising a slot semicircular (841) and a fixing hole (842) on the face adjacent to the fixing one, so as to allow a rotation of the installation plane of the support (1) which allows a radial adjustment. It is known in the state of the art to use bearings with adapter sleeves, designed to support loads axial, i.e. forces applied along the axis of rotation. They are particularly useful in applications where it is It is necessary to reduce friction between moving parts that are subjected to pressure in a specific direction. The "compass" is an insert that helps guide and support linear or rotary movements, improving the precision and bearing life. Preferably the kit according to the invention comprises a spacer ring (95), which allows the fixing of the front cover to the support even in the presence of the space occupied by the bearing with adapter sleeve. The main advantages of using the kit just described are outlined below. First of all, the kit allows to mount any type of ISO and ANSI bearing: once the bearing seat bore is known, it is It is possible to mount any type of bearing that has the same outside diameter (for example, with a Support with 100mm bore it is possible to mount any bearing with 100mm external diameter. (Series type 7211, 6211, 22211,62211, etc.). Furthermore, the kit allows you to mount different covers with different degrees of protection on the same type of support. bearing protection: thanks to the threaded holes on the front and rear faces of the supports, changing the cover, also changes the degree of protection of the bearing without changing the entire support. The threaded holes of the support for fixing the lids, both in diameter and in number, can be sized based on the axial thrust of the bearing and its external diameter. Furthermore, the kit according to the invention allows to configure different fixing options of the support. By means of threaded holes on the base of the support, the latter can be mounted directly on the machine, or, if a different assembly is necessary, it is possible to apply the holes underneath the support auxiliary bases for anchoring to the machine. In general, thanks to the interchangeability of the various moving components, a multiplicity of support configurations, which make it adaptable to any type of bearing with the same diameter external to the latter. Therefore, based on the consumer's needs, support can be obtained for any type of use (more or less heavy), with different degrees of bearing protection. The kit, whose metal parts are preferably made by chip removal, is suitable for everyone uses (agricultural, mining, etc.) with different construction forms. Its other peculiarity is that it can mount bearings of any brand on the market, giving the user the advantage of being able to quickly find the spare part. If the support is to be used in the food sector, it can be made of stainless steel comply with the regulations regarding food machinery. Thanks to the modularity and interchangeability of the components, the kit according to the invention offers a high flexibility, reducing machine downtime and ensuring simple and safe installation in numerous industrial sectors, from agriculture to the food industry. It is also specified that whatever the commercial practice adopted for the marketing of the kit according to the invention, one does not depart from the scope of the invention. In particular, one does not depart from the scope of the invention nor if a complete kit is sold with all the possible pieces that allow the various installations, nor if the customer is allowed to choose from the complete kit the pieces he needs and purchase only those.

Claims

1. Modular kit for the installation of bearings, comprising: - a universal support (1) equipped with a housing (11) for the installation of a bearing (2); - an interchangeable front cover (3) and rear cover (5); - a locking ring (4) placed between said front cover (3) and said bearing (2), to fix said bearing (2) against a stop provided for this purpose in said housing (11); - fixing means (8) for anchoring the support to an external machine or structure;characterised by the fact that each of the above components (front cover, rear cover, locking ring and fixing means) can be selected from a group of devices with different performances, which have in common the ability to be fixed to said support (1), by the fact that the choice of covers with different performances allows the installation in the same support (1) of bearings with variable axial dimensions and to provide different protection performances and by the fact that the choice of fixing means (8) with different geometry allows the anchoring of the support to an external machine or structure with different positioning of said support (1) with respect to said machine or structure.; 2. Modular kit according to claim 1, wherein said support (1) comprises a series of threaded holes to allow the fixing of said front cover (3), said rear cover (5) and said fixing means (8).

3. Modular kit according to any of the preceding claims, characterised in that each front (3) and rear (5) cover can be selected from a group comprising a plurality of covers with different degrees of protection, said group comprising: - covers (31, 51) for use with axial sealing rings or without sealing rings; - covers (32, 52) for use with standard sealing rings; - covers (33, 53) for use with cassette sealing rings; - covers (34, 54) for use with labyrinth sealing rings.

4. Modular kit according to claim 3, characterised in that the front (34) and rear (54) covers for use with labyrinth sealing rings consist of two parts which fit radially into a seat provided on the sealing ring.

5. Modular kit according to any of the preceding claims, characterised in that said support (1) comprises a spacer ring which allows the fixing of the front cover even in the presence of bearings with traction bushing.

6. Modular kit according to any of the preceding claims, characterised in that said support (1) is provided with fixing holes in the lower part for mounting on auxiliary fixing bases (81, 82, 83, 84) selectable from a plurality of bases, including a base with 2 anchoring holes (81), a base with 4 anchoring holes (82), a base in the form of an angular support (83) and a base (84) with adjustable slots to allow radial rotation of the support.

7. Modular kit according to any of the preceding claims, characterised in that said support (1) is configured for installation on machines in different industrial sectors, including agricultural and mining, with the possibility of being made of stainless steel for food applications.

8. Modular kit according to any of the preceding claims, characterised in that said support (1) allows the installation of ISO and ANSI standard bearings, with identical external diameters but different axial dimensions, thanks to the modularity of the covers and sealing rings.

9. Method of installing bearings using a modular kit according to any of claims 1 to 8, characterized in that it allows the adaptation of bearings from different suppliers and different axial dimensions to a single universal support without the need to replace the entire support.