WO2012020199A1 - Hammer crusher or hammer mill, shredder, or the like provided with movable feeding device - Google Patents

Abstract

The present invention relates to a hammer crusher or hammer mill, shredder, or the like, essentially consisting of a grinding chamber (2) in which one or more rotors of a mill, crusher, shredder, or the like are housed, said rotors being mounted in bearings (3) secured to the frame (4) of said hammer crusher or hammer mill, shredder, or the like, wherein the latter includes a movable feeding device (1) that is pivotably connected to the frame (4) of said crusher, mill, shredder, or the like, and consists of a skip pivotably mounted on one side of the frame (4) of the crusher, mill, shredder, or the like via arms (6) hinged onto the frame (4) of the crusher, mill, shredder, or the like. The pivotal movement of said skip (1) is actuated by at least one ram (7), which is hinged by the clevis thereof onto said frame (4) of the crusher, mill, shredder, or the like, or onto another mounting, and which is hinged by the piston rod thereof onto said skip (1).

Description

 Crusher or hammer mill, shredder

 or the like provided with a mobile feed device

The present invention relates to the field of the treatment of materials of all origins, in particular by shredding by means of crushers or hammer mills, shredders or the like and has for object such a crusher or hammer mill, or the like provided with a mobile power supply device.

 The recovery of metal products from obsolete objects, particularly motor vehicles, by means of crushers or grinders, shredders or the like is generally carried out by introducing the objects into a hammer mill, by the intermediate of an introduction ramp bringing, by gravity or by means of a device for pushing or driving, the material to the hammer mill which tears and shreds it, by interaction with one or more anvils, then which ejects and / or discharges through screening walls the mechanical waste obtained having a given size. This waste is then treated for disposal of unsuitable materials for reuse and sorting of the remaining materials according to their metallurgical characteristics.

 Currently, the feed device is generally in the form of a trough or inclined introduction ramp towards the feed opening of the mill or crusher, shredder or the like. This ramp may be equipped with a crusher drum, which simultaneously performs a prior crushing of the products to be treated and their drive towards said feed opening.

 These devices, in the form of known ramps or chutes, make it possible to respond adequately to the problem of correct feeding of crushers, crushers, shredders or the like. However, they are usually arranged at a high height, namely at the feed opening, corresponding substantially to the top of the crusher or crusher and therefore several meters from the ground, so that their loading is relatively unclear .

Indeed, mills, crushers, shredders or the like are relatively bulky machines provided with a large diameter rotor and can therefore reach a substantial height. The opening the lowest point of the ramp or chute is also at this level, that is to say several meters above the ground, so that their loading requires the setting implementing heavy and expensive handling means.

 The ramps or mobile chutes fitted to some crushers or crushers allow, certainly, easier loading because they are horizontal. However, these ramps or chutes remain at a level very clearly above the ground, thus preventing any implementation of current equipment.

 The present invention aims to provide a crusher or hammer mill, or the like, where appropriate of large size, equipped with a mobile feed device for easy loading with common handling means.

 Document WO-A-2010/0033177 already discloses a crusher or crusher, a shredder or the like, consisting essentially of a grinding chamber housing one or more crusher, crusher, shredder or the like rotors mounted in bearings integral with the frame of said crusher or hammer mill, shredder or the like. The latter comprises a movable supply device pivotably connected to the frame of said crusher, shredder mill or the like, and consisting of a bucket, pivotably mounted on one side of the crusher or shredder frame, shredder or the like, by the intermediate arm articulated on the frame of the crusher, grinder, shredder or the like. This bucket is pivotally actuated by at least one jack, which is articulated by its yoke on said frame of the crusher, crusher, shredder or the like, or on another support, and by its piston rod on said bucket or said arm.

 However, the mobile feed device provided by this document requires a complex articulated structure to lift and rotate the bucket, and a floor portion hinged end to prevent unintentional dumping of the load at the end of the dump concerned.

 The present invention aims to overcome the aforementioned drawbacks by providing a simpler solution.

For this purpose, it relates to a crusher or hammer mill, shredder or the like of the aforementioned type, characterized in that the side of the bucket, facing the frame, is open over the entire height of the bucket and in that said bucket is supported by the corresponding ends of its longitudinal edges against the corresponding face of the frame, which has a bend along a radius corresponding to the pivot radius of the bucket relative to the axis of articulation of the arm, the ends of the longitudinal edges of the bucket or the end paths connected to the bucket 1 of the arms 6 having a curvature at least substantially equal to this bending.

 The invention will be better understood, thanks to the following description, which relates to preferred embodiments, given by way of non-limiting examples, and explained with reference to the attached schematic drawings, in which:

 Figure 1 is a partial perspective view of a crusher, grinder, shredder or the like according to the invention comprising a movable feeding device;

 FIG. 2 is a diagrammatic and side elevational view showing an alternative embodiment of the connection between the lateral arms and the bucket, in a crusher, grinder, shredder or the like according to the invention (the dimensions and the mutual arrangements of the different components are not limiting), and

 Figure 3 is a view similar to that of Figure 2 of another embodiment of the invention.

 Figure 1 of the accompanying drawings shows, by way of example and in part, a crusher, grinder, shredder or the like, said crusher, grinder, shredder or the like which consists essentially of a grinding chamber 2 housing one or more crusher rotor , grinder, shredder or the like, mounted in bearings 3 secured to the frame 4 of said crusher, grinder, shredder or the like.

 This crusher, mill, shredder or the like comprises a mobile feed device 1 pivotally connected to the frame 4 of the crusher, mill, shredder or the like. Such a mobile feed device 1 is intended to provide the feed of the crusher, grinder, shredder or the like through its feed opening 5, by spilling its contents, after prior loading.

As shown in FIG. 1, this mobile feed device 1 consists of a bucket, mounted pivotably on one side of the frame 4 of the crusher, mill, shredder or the like, by intermediate arm 6 articulated on the frame 4 of the crusher, grinder, shredder or the like.

 This bucket 1 is pivotally actuated by at least one jack 7, which is articulated by its fork on said frame 4 of the crusher, grinder, shredder or the like, or on another support, and by its piston rod on said bucket 1 or said arm 6.

 Preferably, the piston of the cylinder 7 is articulated on the bucket 1 near its end facing the chassis 4 of the crusher, mill, shredder or the like, or on the end of the arm 6 connected to the bucket 1.

 However, the cylinder or cylinders 7 may also be connected (s) by their rod to another part of the bucket 1, in particular at the bottom or at the side walls thereof.

 This device is described about a crusher or hammer mill, or the like, but is obviously also applicable to other machines of this type, namely pre-shredders or pre-shredders or shears, etc.

 According to the invention, the side of the bucket, forming the mobile feed device 1, facing the chassis 4 of the crusher, crusher, shredder or the like, is advantageously open over the entire height of the bucket and said bucket s' supported by the corresponding ends of its longitudinal edges Γ against the corresponding face 4 'of the frame 4, which has a bend along a radius corresponding to the pivot radius of the bucket relative to the axis of articulation of the arms 6, the ends longitudinal edges Γ and / or the paths traveled by the ends of the arms 6 connected to the bucket 1 having a curvature equal to or substantially equal to this bending.

 In sum, the bending radius of the chassis face 4 of the bucket forming the device 1 is equal to the distance separating the point of contact of the bucket with said face of the chassis 4 of said pivot axis (axis of the articulation 8 ).

 Thus, during the pivoting of the bucket, the longitudinal edges Γ of the lateral sides of the bucket 1, and the edge of the floor thereof, slide along the surface of the curved face 4 'of the frame 4, to to open at the level of the opening 5.

The curved face 4 'has, for this purpose, a profiled shape in the circular curved direction of the pivoting movement. Thus, it is possible to perform a prior loading of the bucket constituting the mobile feed device 1, at a distance from the ground corresponding to the upper level of the sides of said bucket, then lift the latter by the action of the cylinder or cylinders In fact, such an actuation causes a thrust on the end of the bucket facing the frame 4 of the crusher, grinder, shredder or the like, which has the direct mechanical effect of rotating the bucket around the bucket. axis of articulation of the arms 6, to which it is connected, on the frame 4 of the crusher, grinder, shredder or the like, without requiring any additional device or member.

 As a result, the bucket pivots gradually and automatically to an inclined position, while being moved upwards to be brought in front of the feed opening 5 of the grinding chamber 2, so that at the finish in front of said opening, the contents of the bucket can be discharged by gravity into the grinding chamber.

 The sliding support of the edges Γ, or means of connection of the bucket 1 with the arms 6, on the face 4 'of the frame 4 may be made in various ways known to those skilled in the art and the support zones to the level of this bearing face of course have sufficient rigidity and mechanical strength to withstand the stresses to which they are subjected during the pivoting of the loaded bucket 1.

 This sliding support can be obtained by pads, possibly achieving at the same time a seal at least relative, or rollers, rollers or the like, possibly mixed with the pads.

According to an alternative embodiment of the invention, and as shown schematically in Figure 2 of the accompanying drawings, the arms 6 articulated on the frame 4 of the crusher, crusher, shredder or the like, can be connected to the bucket forming the device of the invention. mobile supply 1 via a hinge 8 of the end of said arm 6 opposite to the hinge on the corresponding end of the bucket (in the lower part of this hinge), at least one jack 9, and preferably two cylinders 9, acting between bearings 91 and 92 provided respectively on either side of the hinge 8 between the bucket and the end of the arms 6, the cylinders 7 for pivoting actuation acting by their end or on the bucket, either on the arms 6, on one side or the other of the articulation 8 between the bucket and the arms 6. Preferably, the control of the cylinder (s) 9 is subject to the control of the actuator cylinder (s) 7 for pivoting the arms 6, so that during the upward pivoting of the arms 6, the bucket is kept at a minimum. inclination close to the horizontal and that upon arrival at the end of the upper pivoting arms 6, or said cylinders 9 are controlled in the direction of a pivoting upwards of the bucket to bring it a substantially horizontal position towards a substantially inclined position in extension of the axis of the pivot arms 6. Thus, at the beginning of the pivoting of the arms 6 under the action of the cylinders 7, the cylinders 9 are affected by a movement tending to continually reduce the bucket to a substantially horizontal position or having a controlled inclination relative to the horizontal. When reaching the end of the upper pivoting stroke of the arms 6, which corresponds to the arrival of the bucket in front of the feed opening 5 of the grinding chamber 2, the cylinders 9 are actuated in a contrary direction to perform a reverse movement, that is to say to tilt the bucket, from its substantially horizontal position or possibly slightly inclined, to an inclined position of discharge of the products it contains in the opening 5 of the enclosure grinding 2, preferably under the effect of gravity alone.

 FIG. 3 of the accompanying drawings shows another variant embodiment of the invention, in which the bucket is pivotally connected to the arms 6 via a hinge pin 10 offset back from the end of its edges. longitudinals, and preferably upwards from its edges (away from the floor of the bucket), the arms 6 being loaded by the cylinders 7 for pivoting actuation, and the bucket is provided, furthermore, near its edge lower transverse end of at least one transverse bar 1 1 intended to cooperate with hooks 12 provided near the lower part of the feed opening 5 of the grinding chamber 1.

In such an embodiment, the bucket is freely pivotable about the hinge axis 10 provided on each arm 6 and, during the upward pivoting of said arms 6 under the action of the jacks 7, the bucket slides on the curved guide wall provided on the corresponding face of the frame 4 until its transverse bar 1 1 catches in the hooks 12 provided under the opening 5 of the grinding chamber 2. Due to this attachment, it occurs, while continuing the upward pivoting of the arms 6, and because of the corresponding drive of the bucket, a pivoting of the latter around the transverse bar 1 1 which has the effect of bringing it into a tilting position for gravity unloading in the chamber 2.

 In FIG. 1 of the appended drawings, the skip of the feed device according to the invention is shown in a position close to the ground, in which its loading can be carried out very quickly by implementing current and unsophisticated handling means. , unlike loading ramps known to date, the bottom must at least be at the feed opening 5 of the grinding chamber 2, which corresponds to a difference in height of several meters.

 Of course, if the crusher, grinder, shredder or the like is mounted on a frame, at a distance from the ground, the bucket will be placed on a frame at the same height but the advantages provided by the possibility of displacement, according to the invention , remain.

 Thanks to the invention, it is possible to provide a mobile feed device of a crusher, grinder, shredder or the like to simplify the loading and thus the feeding of these machines, in particular by implementing devices common handling and space-saving compared to the handling device usually used with this type of machine.

 Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims

EVENDICATIONS 1. Crusher or hammer mill, shredder or the like, consisting essentially of a grinding chamber (2) housing one or more crusher, crusher, shredder or the like rotors, mounted in bearings (3) integral with the frame (4). ) of said crusher or hammer mill, shredder or the like, the latter comprising a movable feed device (1) pivotably connected to the frame (4) of said crusher, shredder mill or the like, and consisting of a skip mounted pivotable on one side of the frame (4) of the crusher or grinder, shredder or the like, by means of arms (6) articulated on the frame (4) of the crusher, grinder, shredder or the like, this bucket (1) being actuated pivoting by at least one jack (7), which is articulated by its cap on said frame (4) of the crusher, grinder, shredder or the like, or on another support, and by its piston rod on said ben ne (1) or said arm (6),  crusher or hammer mill, shredder or the like characterized in that the side of the bucket (1), facing the frame (4), is open over the entire height of the bucket (1) and in that said bucket (1 ) is supported by the corresponding ends of its longitudinal edges (Γ) against the corresponding face (4 ') of the frame (4), which has a bend along a radius corresponding to the radius of pivoting of the bucket (1) relative to the axis of articulation of the arms (6), the ends of the longitudinal edges (Γ) of the bucket (1) or the end paths connected to the bucket (1) of the arms (6) having a curvature at least substantially equal to to this bending. Crusher, crusher or the like according to claim 1, characterized in that the arms (6), articulated on the frame (4) of the crusher, crusher, shredder or the like, are connected to the bucket forming the feed device. mobile (1) via a hinge (8) of the end of said arms (6) opposite to the hinge on the corresponding end of the body, and in that at least one jack (9) , and preferably two cylinders (9), acting between bearings (91) and (92) are provided respectively on either side of the articulation (8) between the bucket and the end of the arms (6), the cylinders (7) for pivoting actuation acting by their end either on the bucket or on the arms (6), on one side or the other of the articulation (8) between the bucket and the arms (6).  Crusher, crusher or the like according to claim 2, characterized in that the control of the cylinder (s) (9) is subject to the control of the actuator (s) (7) for pivotally actuating the arms (6), such that, during the upward pivoting of the arms (6), the bucket is kept at an inclination close to the horizontal and that, when the upper arm of the arms (6) arrives at the end of pivoting movement, the at least one cylinders (9) are controlled in the direction of a pivoting upwards of the bucket to bring it from a substantially horizontal position to a substantially inclined position in extension of the axis of the pivoting arms (6).  Crusher, mill or the like according to claim 1, characterized in that the bucket (1) is pivotally connected to the arms (6) via a hinge pin (10) offset from the rear end of its longitudinal edges (Γ), the arms (6) being loaded by the actuators (7) pivotally actuated, and the bucket is further provided near its lower transverse end edge of at least one transverse bar (1 1) intended to cooperate with hooks (12) provided near the lower part of the feed opening (5) of the grinding chamber (2).  A movable feeder in the form of a pivotable bucket forming part of a crusher or hammer mill, shredder or the like according to any one of claims 1 to 4.