EP4433657A1 - Godet broyeur - Google Patents

Godet broyeur

Info

Publication number
EP4433657A1
EP4433657A1 EP22797122.3A EP22797122A EP4433657A1 EP 4433657 A1 EP4433657 A1 EP 4433657A1 EP 22797122 A EP22797122 A EP 22797122A EP 4433657 A1 EP4433657 A1 EP 4433657A1
Authority
EP
European Patent Office
Prior art keywords
cross
seat
containment
bucket
flank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22797122.3A
Other languages
German (de)
English (en)
Inventor
Diego Azzolin
Guido Azzolin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meccanica Breganzese SpA In Forma Abbreviata Mb SpA
Original Assignee
Meccanica Breganzese SpA In Forma Abbreviata Mb SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Meccanica Breganzese SpA In Forma Abbreviata Mb SpA filed Critical Meccanica Breganzese SpA In Forma Abbreviata Mb SpA
Publication of EP4433657A1 publication Critical patent/EP4433657A1/fr
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/965—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of metal-cutting or concrete-crushing implements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/04—Jaw crushers or pulverisers with single-acting jaws

Definitions

  • the present invention relates to an improved crusher bucket , particularly for crushing inert material , processing waste and demolition material , which is generally referred to below as gravel .
  • buckets comprising an external frame which is configured to collect gravel and inside which there are mounted crusher elements for the collected material .
  • bucket i s intended to be understood to generally indicate any member which is provided and intended to be engaged at the free end of an arm of an operating machine .
  • the crusher elements which are provided in the bucket comprise a pair of j aws which face each other, one being movable relative to the other in order to compress and crush the material present between the aws .
  • the movable j aw carries out with respect to the fixed j aw a rotational/ translational movement which is brought about as a result of the provision of a first eccentric connection at a front portion of the movable j aw and the provision of a second strut type connection at an opposite rear portion of the movable j aw .
  • the second connection comprises a strut which is interposed in an articulated manner between an abutment portion of the frame and the rear portion of the movable j aw and which provides for maintaining the correct distance between the aws at the outlet from the bucket and for counteracting the loads generated by the crushing of the gravel .
  • the crusher bucket described in the patent cited above has definitely constituted substantial progress in comparison with the buckets known previously .
  • a number o f disadvantages which limit the performance levels thereof have been encountered, particularly with reference to the capacity for withstanding the loads brought about by the resistance of the material to be crushed .
  • this problem collides with the requirement to reduce the weight and the number of additional components o f the movable j aw in order to simpli fy the assembly and the movement thereof .
  • the problem addressed by the present invention is to provide a crusher bucket which is structurally and functionally configured to at least partially overcome one or more of the disadvantages set out with reference to the cited prior art .
  • an obj ect of the present invention is to provide a crusher bucket capable of withstanding the loads brought about by the resistance of the material to be crushed .
  • Another obj ect is to provide a crusher bucket , the assembly o f which is easy with respect to the assembly of conventional buckets .
  • a crusher bucket which comprises a frame in which there are preferably defined a material inlet and a material outlet and a material f low direction from the inlet to the outlet .
  • the bucket further comprises crushing elements comprising a movable j aw and a fixed j aw which are received in the frame .
  • the movable j aw comprises a pair of longitudinal members which extend in the flow direction and, still in a preferable manner, a plurality of cross-members which are mutually parallel and which extend from one of the longitudinal members to the other .
  • the plurality of cross-members prefferably comprise a first cross-member and a second cross-member which is arranged downstream of the first cross-member with respect to the flow direction of the material .
  • the second cross-member prefferably has a section greater (for example , in terms of area or thickness ) than that of the first cross-member .
  • section is intended to be understood to mean preferably a cross-section which in the case of the first and/or second cross-member may be , for example , a rectangular section .
  • the thickness of the section is preferably measured in the flow direction of the material .
  • this structure confers on the movable j aw an increasing rigidity in the material flow direction, and particularly towards the crushing zone interposed between the aws .
  • FIG. 1 is a perspective front view of a crusher bucket according to the present invention
  • FIG. 1 is a perspective rear view of the bucket of Figure 1 ;
  • FIG. 3 is a lateral section of the bucket of Figure 1 , in which attachments for engaging the bucket at the free end o f an arm of an operating machine , which are not illustrated in Figures 1 and 2 , are illustrated;
  • FIG. 4 is an enlarged view of a detail of Figure 3 ;
  • FIG. 5 to 7 are perspective views of the detail of Figure 4 , in which some components have been removed in order to illustrate other components thereof which are normally not able to be seen;
  • FIG. 8 is a side view of a detail of the bucket of Figure 1 ;
  • FIGS. 9 and 10 are perspective views of a lateral section of the bucket of Figure 1 , in which some components have been removed in order to illustrate other components thereof which are normally not able to be seen;
  • Figure 11 shows the detail o f Figure 4 , in which some components have been arranged in a di f ferent operating configuration
  • Figures 12 and 13 are perspective front and rear views of a detail of Figure 11 , respectively;
  • FIG. 14 is a perspective view of a j aw of the bucket of Figure 3 ;
  • FIG. 15 is a perspective , partially sectioned view of the aw of Figure 14 .
  • a crusher bucket according to the present invention is generally designated 1 .
  • the bucket 1 comprises an external frame 2 which preferably comprises two opposite side walls 3 .
  • an upper wall 4 and a lower wall 5 of the frame which are also opposite each other and which extend between the side walls 3 , particularly from one of the side walls to the other .
  • the upper arrangement and lower arrangement are defined in relation to the position of the bucket during the collection step of the material from the ground .
  • An inlet 7 for charging gravel or other material to be crushed, typically stone , and an opposite outlet 8 for discharging the processed material after the crushing operation are defined in the frame 2 .
  • a flow direction F of the material is defined from the inlet 7 to the outlet 8 .
  • the development of the side walls 3 , upper wall 4 and/or lower wall 5 of the frame substantially follows the flow direction F .
  • the frame 2 may further comprise a rear wall 9 which connects the side walls 3 to each other adj acent to the outlet 8 .
  • the side walls 3 , upper wall 4 , lower wall 5 and/or rear wall 9 of the frame preferably form external walls of the frame .
  • crushing elements for the gravel comprising a movable aw 10 and an opposite fixed j aw 11 which is fixedly j oined to the frame .
  • the movable jaw 10 can be arranged adjacent to the upper wall 4 of the frame while the fixed jaw 11 can be arranged adjacent to the lower wall 5 of the frame.
  • a crushing zone 12 which is laterally delimited by the side walls 3 of the frame.
  • respective grooved plates 13, 14 which are able to facilitate the crushing action are fixed to the jaws 10 and 11.
  • each of the j ws 10 and 11 there are defined a respective front portion 10a, Ila and a respective rear portion 10b, 11b which are opposite each other.
  • the front portions 10a, Ila of the aws are positioned at the inlet 7 while the rear portions 10b, 11b are positioned at the outlet 8.
  • the distance between the front portions 10a, Ila of the jaws defines the maximum dimension of the gravel which can be charged in the bucket and is typically greater than the distance D between the rear portions 10b, 11b which correlates instead with the desired maximum dimension of the gravel at the outlet 8.
  • the distance D between the rear portions 10b, 11b can be adjusted, as explained in detail below.
  • the bucket 1 further comprises a movement device 15 which acts on the movable jaw 10 in order to move it away from and towards the fixed jaw 11 in accordance with a suitable trajectory so as to crush the material present between the jaws.
  • the movement device 15 is able to confer on the movable jaw 10 a combined rotational and translational movement in relation to the fixed jaw 11, wherein a first component of the movement is away from and towards the fixed j aw 11 and a second component of the movement is substantially parallel with the flow direction F of the material .
  • This particular movement can be obtained as a result of a movement device 15 comprising an eccentric connection 16 at the front portion 10a of the movable j aw and a second strut type connection 17 at the rear portion 10b of the movable j aw, as explained in detail below .
  • the movement device 15 may further comprise a motor 18 which is received inside the frame 2 .
  • the motor 18 where applicable by means of a transmission (not illustrated) , controls a shaft 19 in terms of rotation .
  • the shaft 19 is preferably eccentric .
  • the shaft 19 comprises a central portion 20 and two end portions (not illustrated) eccentric with respect to the central portion
  • the end portions are preferably supported on the side walls 3 of the frame while the movable j aw 10 is preferably supported on the central portion 20 .
  • One or more bearings can be applied on the central portion 20 while a metal tube 21 which is rigidly connected to the front portion 10a of the movable j aw can be fixed to the external surface of the bearings .
  • the above-described system constitutes an eccentric connection 16 between the movable j aw 10 and the shaft 19 .
  • the second connection 17 of the movable j aw comprises a strut 22 .
  • the strut 22 extends longitudinally between a first end 23 and a second end 24 thereof which are opposite each other and which are preferably received in a first seat 25 which is defined in the frame and in a second seat 26 which is defined in the movable j aw, respectively .
  • the strut 22 is engaged in terms of articulation at the two opposite ends 23 , 24 thereof both with the first seat 25 and with the second seat 26 in such a manner that an oscillation, though of limited extent , o f the strut is allowed with respect to the frame and the movable j aw .
  • the strut 22 is therefore interposed and retained between the first seat and the second seat 25 , 26 .
  • the first seat and the second seat 25 , 26 are preferably arranged adj acent to the outlet 8 of the material .
  • the second seat 26 in particular, is defined on the rear portion 10b of the movable j aw .
  • the second connection 17 of the movable j aw further comprises a rod 27 , a first end 28 of which is connected to the frame and a second opposite end 29 of which is connected to the movable j aw so as to maintain the strut 22 held between the first seat 25 and the second seat 26 during the movement of the movable j aw .
  • the resilient means comprise a spring 30 which is configured to work preferably with compression .
  • the first end 28 of the rod can be connected to the frame 2 by means of the spring 30 , a first end 31 of which is connected to the first end 28 of the rod and a second opposite end 32 of which is connected to a cross-member 33 which is fixedly j oined to the frame .
  • the rod 27 and strut 22 are substantially parallel with each other .
  • the ends 23 , 24 of the strut which are received in the first and second seats 25 , 26 are rounded in order to facilitate the oscillation thereof about the respective contact lines . More particularly, the ends 23 , 24 of the strut have a substantially square profile with rounded edges while the first and second seats 25 , 26 preferably have a square profile with greater dimensions with respect to the dimensions of the ends of the strut so that the play present between the elements of the articulation is suf ficient to al low the oscillation required . It is thereby possible to avoid lubrication operations of the articulations because there i s no friction between the contact surfaces , but rather a rolling action of the ends of the strut on the base of the respective seats .
  • each of the two seats 25 and 26 of the strut i s in the form of a groove , for example, with a U-shaped cross-section or a square crosssection which is defined laterally by a respective pair of opposite containment flanks 25' , 25' ' and 26' , 26' ' and, on the base, by respective cross-members 35 and 36.
  • the first seat 25 has a first containment flank 25' at the side directed towards the outlet 8 and a second containment flank 25' ' at the side opposite the outlet.
  • the second seat 26 also preferably has a respective first containment flank 26' at the side directed towards the outlet 8 and a respective second containment flank 26' ’ at the side opposite the outlet.
  • the first containment flanks 25' , 26' are arranged downstream of the respective second containment flanks 25' ' , 26' ' with respect to the flow direction F of the material .
  • the containment flanks 25' , 25' ' , 26' , 26' ' are therefore advantageously configured to contain any movements of the respective ends 23, 24 of the strut towards the inlet 7 or outlet 8 during the movement of the movable jaw.
  • the containment flanks 25' , 25' ’ , 26' , 26' ' and/or the base cross-members 35, 36 of the seats of the strut extend between the side walls 3 of the frame and are located in planes which are substantially perpendicular to the side walls 3.
  • the containment flanks 26' , 26' ' of the second seat 26 form with the respective cross-member 36 a structurally monolithic single piece .
  • the containment flanks 26 ' , 26 ' ’ together with the cross-member 36 form a structure which has a cross-section which is substantially C-shaped with the seat 26 being defined between the arms of the C . In this manner, the second seat 26 is more resistant to the loads which are transmitted by the strut 22 during the crushing operations .
  • the bucket 1 comprises a stop device 34 which is able to retain the second end 24 of the strut inside the second seat 26 during the movement of the movable j aw .
  • stop device 34 it is preferable for the stop device 34 to be fixed or able to be fixed removably onto the first containment flank 26 ' of the second seat .
  • the removal of the stop device 34 allows the insertion/removal of the strut 22 through the outlet 8 during the assembly or the maintenance of the bucket .
  • stop device 34 is further preferable for the stop device 34 to be configured in order to extend the first containment flank 26 ' of the second seat away from the base of the second seat 26 so as to prevent the strut 22 from accidentally leaving the second seat during the movement of the movable j aw .
  • the stop device 34 does not proj ect inside the second seat 26 in order not to interfere with the oscillation of the strut 22 .
  • the stop device 34 comprises a batten 37 which has a, for example , rectangular cross-section and which has such dimensions as to withstand the forces transmitted through the strut .
  • the batten 37 can extend between opposite longitudinal members 38 of the movable j aw and be f ixed to the first containment flank 26 ' of the second seat , preferably by means of a bolted connection .
  • the term " spacer" i s intended to be understood to be a shim which is configured to keep the first end 23 of the strut at a suitable spacing from the base of the first seat 25 .
  • the spacers 40 are preferably made from metal material , more particularly steel , and have such dimensions as to withstand the forces which are transmitted through the strut 22 .
  • the spacers 40 are in the form of battens with a preferably rectangular cross-section . Therefore, spacers 40 and the strut 40 constitute an adjustment device 41 for the extent of the section of the outlet 8.
  • spacers 40 By increasing or decreasing the number of spacers 40 which are arranged between the strut 22 and the frame 2, it is possible to change the distance D between the jaws, particularly at the outlet 8. In any case, it is evident that a spacer with a different dimension could also be used as an alternative to a greater number of spacers 40.
  • a first opening 42 is defined in order to insert/remove the spacers 40 to/from the first seat.
  • spacers 40 When one or more spacers 40 is/are at rest, that is to say, they are not in use in the first seat 25, it is possible to store them in the frame.
  • the frame 2 comprises a third seat 43 which is configured to receive spacers 40 at rest.
  • the third seat 43 is adjacent to the first seat 25 and/or the rear portion 10b of the movable jaw.
  • the spacers 40 at rest are or can be removably inserted in the third seat 43 through a second opening 44 which is constructed in a side wall 3 of the frame.
  • the third seat 43 allows a stock of spacers 40 which are always available and readily accessible to be stored directly in the bucket.
  • first and second openings 42, 44 are preferably constructed in the same side wall 3. More particularly, the first and second openings 42 , 44 are located in the same plane and are adj acent to each other so as to al low the operator to readily trans fer the spacers 40 between the first opening and the second opening without having to move around the bucket .
  • a removable cover 45 which is configured to close the first and second openings 42 , 44 so as to prevent the introduction of dust or the accidental discharge of the spacers .
  • the cover 45 can be f ixed to the s ide wall 3 o f the frame in a removable manner, for example , by means of bolted connection .
  • the cover 45 can be configured to close the first and the second openings 42 , 44 simultaneously, for convenience but also for safety, given that in this manner the risk that one of the two openings may remain open by error, bringing about the accidental discharge of the spacers , is eliminated .
  • the third seat 43 for receiving the spacers 40 is also protected by the rear wall 9 of the frame in addition to being protected by any cover 45 present .
  • the rear wall 9 preferably extends from the bottom cross-member 35 of the first seat towards the outlet 8 and forms an external wall of the frame 2 .
  • a plurality of reinforcement plates 46 which contribute to sti f fening the frame 2 so as to withstand the loads brought about by the material during the crushing operations can be fixed to the rear wall 9 . It is preferable for each of the reinforcement plates 46 to be connected to the rear wall 9 and to the first containment flank 25 ' of the first seat of the strut so as to fix the rear wall 9 to the first containment flank 25 ' .
  • reinforcement plates 46 are substantially parallel with each other and/or with respect to the side walls 3 of the frame and for them to be substantially perpendicular to the rear wall 9 o f the frame and/or the first containment flank 25 ' of the first seat .
  • the reinforcement plates 46 may have respective third openings 47 which generally define the third seat 43 for receiving the spacers .
  • the third openings 47 it is preferable for the third openings 47 to be aligned with respect to each other . It is further preferable for the third openings 47 to be aligned with respect to the second opening 44 so as to facilitate the insertion/removal of the spacers in/ from the third seat 43 through the second opening .
  • first opening 42 , the second opening 44 and/or the third openings 47 are preferably through-openings . Furthermore, it is preferable for them to have a substantially rectangular shape in order to facilitate the insertion of a pack of spacers 40 which are stacked one above the other .
  • the third openings 47 particularly have a width W and a height H .
  • the width W of the third openings is preferably greater than the width of the spacers 40 so that the play present lateral ly to the spacers is suf ficient to allow the spacers to slide in the third seat 43 . Still in a preferable manner, each of the third openings 47 extends longitudinally over the height H between an upper end 47' and an opposite lower end 47' ' of the third openings.
  • the spacers 40 can be stacked one above the other between the upper end 47' and lower end 47' ' .
  • the upper end 47' is directed towards the rear wall 9 of the frame while the lower end 47' ' is directed at the opposite side, more particularly towards the movable jaw 10.
  • the bucket 1 comprises a blocking device 48 which is able to retain the spacers 40 in abutment against one of the two ends 47' , 47' ' of the third openings (in the present embodiment, against the upper end 47 ' ) .
  • the blocking device 48 preferably comprises a movable support 49 which can support the spacers 40 and an urging member 50 which can urge the movable support 49 towards one of the two ends 47' , 47' ' of the third openings.
  • the urging member 50 is configured to urge the movable support 49 towards the upper end 47' of the third openings. Therefore, it is preferable for the spacers 40 to be inserted between the movable support 49 and the upper end 47 ' .
  • the urging member 50 is therefore preferably adj ustable and can comprise one or more threaded connection elements 51 (for example , four ) which extend between the movable support 49 and the rear wall 9 of the frame over the height H of the third openings 47 .
  • Through-holes 83 may be provided in the rear wall 9 in order to insert the threaded connection elements 51 .
  • the threaded connection elements 51 are inserted in a movable manner in the through-holes 83 and become engaged with a screwing action in respective threaded holes 84 which are formed in the movable support 49 .
  • the threaded connection elements 51 preferably work as rods between the movable support 49 and the rear wall 9 .
  • the threaded connection elements 51 can work with compression in order to urge the movable support 49 and/or the spacers 40 in the opposite direction to the rear wall 9 and there fore towards the lower end 47 ' ’ of the third openings .
  • the spacers it is preferable for the spacers to be inserted between the movable support 49 and the lower end 47' ' .
  • the bucket 1 comprises a profile-member 52, more particularly with an L-shaped cross-section, wherein a first side 53 and a second side 54 are identified.
  • first and second sides 53, 54 are substantially perpendicular to each other. It will be understood that, more generally, an angle between 80° and 100° is formed between the first side and second side 53, 54.
  • each of the two sides 53, 54 of the profilemember is substantially flat.
  • the profile-member 52 can be removably inserted in the first seat 25 through the first opening 42.
  • the first side 53 is or can be preferably interposed between the bottom cross-member 35 of the first seat and the first end 23 of the strut.
  • one or more spacers 40 is/are or can be removably inserted between the bottom cross-member 35 of the first seat and the first side 53 of the profile-member.
  • the first side 53 is therefore interposed or can be interposed between one or more spacers 40 which are inserted in the first seat 25 and the first end 23 of the strut. Still in a preferable manner, the profile-member 52 i s orientated or configured to be orientated so that the second side 54 is directed towards the first containment flank 25 ' o f the first seat and develops towards the movable j aw 10 .
  • the second side 54 is thereby advantageously configured to laterally retain the first end 23 of the strut during the movement of the movable j aw .
  • first side 53 of the profile-member can be interposed between the base of the first seat 25 and the first end 23 of the strut in the absence of spacers 40 which are inserted in the first seat 25 .
  • first side and second side 53 , 54 of the profile-member are substantially identical .
  • the profile-member 52 is thereby completely reversible . This prevents positioning errors and allows the profile-member 52 to be inverted in the event of local wear at one of the two sides .
  • the profilemember 52 is preferably made from wear-resistant material , more particularly high-strength steel .
  • the second side 54 of the profile-member 52 is pre ferably interposed or able to be interposed between the first containment flank 25 ' of the first seat and the first end 23 of the strut .
  • the first containment flank 25 ' of the first seat is therefore advantageously configured to at least partially abut the second side 54 of the profile-member .
  • the second side 54 of the profile-member is configured to proj ect from the first containment flank 25 ' of the first seat towards the movable aw 10 so as to retain the first end 23 of the strut during the movement of the movable j aw in accordance with the number of spacers 40 which are inserted between the bottom cross-member 35 of the f irst seat and the first side 53 of the profile-member .
  • the second side 54 i s completely contained inside the first seat 25 .
  • the profile-member 52 progressively moves away from the bottom cross-member of the first seat until the second side 54 starts to proj ect from the first containment flank 25 ' of the first seat towards the movable j aw .
  • the profile-member 52 prevents the first end 23 of the strut from leaving the first seat 25 when a high number of spacers are inserted in the first seat , that is to say, when the movable j aw is adj usted so as to carry out the crushing of fine material .
  • the assembly of the bucket 1 requires that the strut 22 be inserted in the first seat 25 , passing through the outlet 8 o f the material .
  • the first containment flank 25 ' of the first seat at the side directed towards the movable j aw 10 has a recess 55 which is able to allow the insertion of the strut 22 between the containment flanks 25 ' , 25 ' ' of the first seat .
  • the recess 55 further allows a greater oscillation of the strut 22 towards the outlet 8 during the movement of the movable j aw .
  • the second side 54 of the profile-member is configured to proj ect from the recess 55 towards the movable j aw in accordance with the number of spacers 40 which are inserted between the bottom cross-member 35 of the first seat and the first side 53 of the profile-member .
  • the recess 55 is preferably tapered in the direction away from the movable j aw 10 so as to retain at least the longitudinal ends of the profile-member 52 when the second side 54 proj ects from the recess .
  • the profile-member 52 and the recess 55 prefferably develop longitudinally between the side walls 3 of the frame over a first length LI and a second length L2 , respectively, the first length LI exceeding the second length L2 .
  • the bucket 1 comprises a motor 18 which is able to actuate the crushing elements .
  • the motor 18 preferably a hydraulic motor, is at least partially received in a protective casing 56 .
  • the casing 56 further receives at least partially a hydraulic circuit (not illustrated) for actuating the motor 18 .
  • the casing 56 is at least partially surrounded in the frame 2 .
  • the casing 56 is defined laterally by the side walls 3 of the frame and, still in a preferable manner, it is further delimited by a lower wall 58 of the casing facing the movable j aw 10 and by an upper wall 59 o f the casing opposite the lower wall 58 .
  • the lower wall 58 and upper wall 59 of the casing preferably extend between the side walls 3 of the frame , particularly from one of the side walls 3 to the other .
  • the upper wall 59 of the casing can be connected to the upper wall 4 of the frame , preferably in a removable manner, for example , by bolted connection .
  • the upper wall 59 of the casing therefore contributes to withstanding the weight of the bucket when the upper wall 4 o f the frame is engaged at the free end of the arm of an operating machine .
  • the upper wall 59 of the casing preferably comprises a reinforcement cross-member 60 which extends between the s ide walls 3 of the frame .
  • the casing 56 defines a region R1 which is directed towards the outlet 8 and a region R2 which is arranged in a position opposite the outlet 8 with respect to the flow direction F of the material .
  • the bucket 1 prefferably comprises a plurality of first reinforcement plates 61 which are arranged inside the casing 56 at the region R2 which is arranged in a position opposite the outlet 8 .
  • the first reinforcement plates 61 are connected to the lower wall 58 and upper wall 59 of the casing so as to fix the lower wall 58 of the casing to the upper wall 59 of the casing .
  • the first reinforcement plates 61 contribute to the absorption and distribution from one wall to the other of the loads brought about by the resistance of the material to be crushed .
  • the first reinforcement plates 61 contribute to withstanding the weight of the bucket .
  • the first reinforcement plates 61 be connected to the upper wall 59 of the casing in a position corresponding to the position of any attachments 6 present .
  • the first reinforcement plates 61 may be provided two attachments 6 which are arranged symmetrically with respect to the centre plane of the bucket and two first reinforcement plates 61 which are arranged at the respective attachments .
  • the first reinforcement plates 61 are mutually parallel and/or parallel with the side walls 3 of the frame and/or perpendicular to the lower wall 58 and upper wall 59 of the casing .
  • the first reinforcement plates 61 are connected to the reinforcement cross-member 60 so as to fix the reinforcement cross-member 60 to the lower wall 58 of the casing .
  • the frame 2 comprises a plurality o f second reinforcement plates 62 which are arranged external ly with respect to the casing 56 in the region R1 directed towards the outlet 8 , as , for example , il lustrated in the embodiment of Figure 9 .
  • the second reinforcement plates 62 are advantageously connected to the lower wall 58 o f the casing and the second containment flank 25 ' ’ of the first seat so as to fix the lower wall 58 of the casing to the second containment flank 25 ' ’ of the first seat .
  • the second containment flank 25 ' ’ of the first seat i s in turn preferably fixed to the bottom cross-member 35 of the first seat .
  • the second reinforcement plates 62 it is preferable for the second reinforcement plates 62 to be mutually parallel and perpendicular to the lower wall 58 of the casing and/or the second containment flank 25 ' ' of the first seat .
  • first reinforcement plates 61 there are provided two first reinforcement plates 61 and, still in a preferable manner , four second reinforcement plates 62 .
  • second reinforcement plates 62 there are provided two first reinforcement plates 61 and, still in a preferable manner , four second reinforcement plates 62 .
  • a di f ferent number of first and/or second reinforcement plates 61 , 62 can be provided .
  • first reinforcement plates 61 and/or the second reinforcement plates 62 are arranged symmetrically with respect to the centre plane of the bucket . It is further preferable for the first and second reinforcement plates 61 , 62 to be staggered relative to each other .
  • the plurality of second reinforcement plates 62 comprise two external plates 63 (with a substantial ly triangular formation in the present embodiment ) and two internal plates 64 which are interposed between the external plates 63 . It is preferable for the first reinforcement plates 61 to be located in respective planes between the external plates 63 and the internal plates 64 .
  • the internal plates 64 at the opposite side to the movable j aw 10 are fixed to the cross-member 33 to which the second end 32 of the spring is connected .
  • This cross-member 33 preferably extends from one of the external plates 63 to the other so as to confer greater rigidity on the whole .
  • the bucket comprises a first plate 65 and a second plate 66 which extend longitudinally between the side walls 3 of the frame .
  • the first plate 65 is preferably arranged upstream of the movable j aw 10 with respect to the flow direction F of the material and preferably forms an external wall of the frame 2 . Furthermore , in one embodiment , the first plate 65 defines a portion of an edge of the inlet 7 .
  • the second plate 66 preferably develops from the first plate 65 towards the movable j aw 10 so as to accompany the material from the inlet 7 towards the crushing zone 12 , therefore contributing to optimizing the crushing of the material .
  • the first and second plates 65 , 66 prevent the material to be crushed from accidentally being able to be introduced between the movable aw 10 and the upper wall 4 of the frame .
  • the bucket 1 prefferably comprises a plurality of third plates 67 (for example , four ) which are connected to the first and second plates 65 , 66 so as to fix the first plate 65 to the second plate 66 .
  • the third plates 67 contribute to the absorption and distribution between the first plate and second plate of the loads brought about by the impacts of the material . Furthermore, when the upper wall 4 of the frame is engaged with the free end of the arm of an operating machine , the third plates 67 contribute to withstanding the weight of the bucket .
  • the third plates 67 are preferably arranged downstream of the first plate 65 with respect to the flow direction F .
  • the third plates 67 are perpendicular to the first plate and/or second plate and parallel with each other .
  • An upper edge 68 and a lower edge 69 are defined in the upper wall 4 and in the lower wall 5 of the frame at the side directed towards the inlet 7 , respectively .
  • the f irst plate 65 it is preferable for the f irst plate 65 to develop from the upper edge 68 towards the lower edge 69 .
  • third plates 67 develop from the first plate and second plate 65 , 66 towards the upper wall 4 of the frame .
  • a front edge 70 with a tapered formation in the direction away from the movable j aw 10 is identi fied on each of the third plates 67 at the side directed towards the first and second plates 65 , 66 .
  • the first and second plates 65 , 66 can be fixed to the front edge 70 of the third plates .
  • an upper cross-member 71 which extends along the upper edge 68 between the side walls 3 of the frame , particularly from one of the side walls 3 to the other .
  • the upper wall 4 of the frame is rigidly connected to the upper cross-member 71 , preferably in a removable manner, for example , by means of bolted connection .
  • the upper cross-member 71 in conj unction with the possible reinforcement cross-member 60 , contributes to withstanding the weight of the bucket when the upper wall 4 of the frame is engaged with the free end of the arm of an operating machine .
  • first plate 65 at the side directed towards the upper edge 68 , to be rigidly connected to the upper cross-member 71 , for example , by means of welding .
  • the first plate 65 surmounts the upper cross-member 71 in such a manner as to enclose it inside the frame 2 .
  • Each of the third plates 67 preferably extends from the upper cross-member 71 to the first and second plates 65 , 66 so as to fix the upper cross-member to the first and second plates .
  • a lower cross-member 72 which extends between the s ide walls 3 of the frame (particularly from one of the side walls 3 to the other ) and which is preferably rigidly connected to the second plate 66 .
  • the lower cross-member 72 has a cross-section which develops longitudinally from the second plate 66 towards the upper wall 4 of the frame and in particular in the direction perpendicular to the second plate 66 . In this manner, the lower cross-member 72 confers greater rigidity on the second plate .
  • Each of the third plates 67 advantageously extends from the upper cross-member 71 to the lower cross-member 72 so as to fix the upper cross-member to the lower cross-member . In this manner, the upper and lower cross-members 71 and 72 are fixedly j oined to each other during the response to the loads .
  • the upper cross-member 71 it is preferable for, at least in the centre plane of the bucket , the upper cross-member 71 to have a greater section (for example , in terms of area and/or thickness ) with respect to the section of the lower cross-member 72 so as to withstand the weight of the bucket when the upper wall 4 o f the frame is engaged with the free end of the arm of an operating machine .
  • the first plate 65 extends longitudinally from one of the side walls 3 to the other .
  • the second plate 66 can also extend longitudinally from one o f the side walls 3 to the other .
  • the second plate 66 it is preferable for the second plate 66 to have two opposite longitudinal ends 82 which are directed towards respective opposite side walls 3 of the frame and for two respective connection plates 79 to develop from the opposite longitudinal ends 82 of the second plate to the side walls 3 of the frame so as to f ix the opposite longitudinal ends 82 to the side walls 3 .
  • connection plates 79 it is further preferable for the connection plates 79 to have respective location planes which diverge in a direction away from the first and second plates 65 , 66 . In fact , this geometry contributes to sti f fening the frame 2 counter to the loads brought about by the impacts and the crushing of hard material .
  • connection plates 79 further contribute to optimi zing the flow of the material from the inlet 7 towards the crushing zone 12 , preventing material residues , for example , bituminous material residues , from being able to remain at the intersection between the second plate 66 and the side walls 3 .
  • material residues for example , bituminous material residues
  • the connection plates 79 develop longitudinally from the inlet 7 towards the movable aw 10 so as to accompany the material in the flow direction F .
  • an angle A between 20 ° and 120 ° is formed between the location planes of the connection plates 79. More particularly, the angle A is between 40 ° and 100 ° and preferably between 50 ° and 90 ° .
  • the location of the connection plates 79 is such that , when the upper wall 4 of the frame is engaged at the free end of the arm of an operating machine , the connection plates 79 also contribute to withstanding the weight of the bucket .
  • connection plates 79 are further fixed to the respective opposite longitudinal ends of the lower cross-member 72 .
  • the movable j aw 10 comprises a framework 73 which includes a pair of longitudinal members 38 which extend in the flow direction F of the material , with a preferably symmetrical arrangement with respect to the centre plane of the bucket 1 .
  • the framework 73 of the movable j aw may further comprise a plurality of respective cross-members 75 which are mutually parallel and which extend from one of the longitudinal members 38 to the other .
  • the plurality of cross-members 75 of the movable aw prefferably comprise a first cross-member 76 and a second cross-member 77 which is arranged downstream of the first cross-member with respect to the flow direction F of the material .
  • the second cross-member 77 it is further preferable for the second cross-member 77 to have a greater section (for example , in terms of area and/or thickness t2 ) than the section o f the first cross-member 76 .
  • the section of the second crossmember 77 has a thickness t2 which is at least double the thickness tl of the section of the first cross-member 76 .
  • section is intended to be understood to mean preferably a cross-section which in the case of the first and/or second cross-member 76 , 77 may be , for example , a rectangular section .
  • the thicknesses tl , t2 of the respective sections are preferably measured in the flow direction F and/or in the longitudinal development of the movable j aw 10 from the inlet 7 towards the outlet 8 .
  • the movable j aw 10 may comprise a metal tube 21 , in which the central portion 20 of the shaft is received .
  • the metal tube 21 is fixed to the longitudinal members 38 and arranged upstream of the first cross-member 76 with respect to the flow direction F .
  • the movable j aw 10 may further comprise a first reinforcement plate 78 which is connected to the metal tube 21 and the first cross-member 76 so as to fix the metal tube to the first crossmember .
  • the first reinforcement plate 78 extends in the centre plane of the bucket 1 .
  • the plurality of cross-members 75 of the movable j aw also comprises a third cross-member 36 which is arranged downstream of the second cross-member 77 with respect to the flow direction F .
  • the third cross-member 36 has a preferably greater section (for example , in terms of area and/or thickness t3 ) than the section of the second cross-member 77 .
  • the section of the third cross-member 36 has a thickness t3 which is at least double the thickness t2 of the section of the second cross-member 77 . It may be noted that the thicknesses t2 , t3 of the respective sections are preferably measured in the f low direction F and/or in the longitudinal development of the movable aw 10 from the inlet 7 towards the outlet 8 .
  • the third cross- member 36 and more particularly the respective containment flanks 26' , 26' ’ are located in an inclined plane with respect to the location planes of the first cross-member 76 and/or the second cross-member 77.
  • the thickness t3 can be measured transversely relative to the location plane of the third cross-member 36 and/or the respective containment flanks 26' , 26' ' , as shown in the embodiment of Figure 7.
  • first, second and third cross-members 76, 77, 36 confer on the movable jaw 10 a rigidity which progressively increases in the flow direction F and in particular towards the rear portion 10b where the movable jaw is more subject to the loads transmitted by the strut 22.
  • the second seat 26 of the strut is formed on the third cross-member 36.
  • the third cross-member 36 therefore comprises the containment flanks 26' , 26' ’ of the second seat and it advantageously has such dimensions as to withstand the forces which are transmitted through the strut. It is further advantageous for the containment flanks 26' , 26' ’ to be made from a single piece so that the third cross-member 36 is structurally monolithic.
  • the movable jaw 10 comprises a pair of second reinforcement plates 80 which extend in the flow direction F from the second cross-member 77 to the second containment flank 26' ’ of the second seat so as to fix the second cross-member to the second containment flank of the second seat.
  • the second reinforcement plates 80 are preferably interposed between the longitudinal members 38 and still in a preferable manner have a symmetrical arrangement with respect to the centre plane of the bucket 1 .
  • the second reinforcement plates 80 contribute to the absorption and distribution, from the second cross-member to the third one , and vice versa, of the loads brought about by the strut 22 and the resistance of the material to be crushed .
  • the second reinforcement plates 80 further allow the movable j aw 10 to be connected to the rod 27 .
  • the second end 29 of the rod can in fact be interposed between the second reinforcement plates 80 and connected thereto by means of hinging . In order to allow the hinging thereof , it i s preferable for the second reinforcement plates 80 to be bored .
  • the movable aw 10 may comprise a grooved plate 13 which is able to facilitate the crushing action .
  • the grooved plate 13 can be removably fixed to the framework 73 of the movable j aw by means of a locking batten 81 .
  • the locking batten 81 can be bolted to the framework 73 downstream of the plurality of cross-members 75 of the movable j aw with respect to the flow direction F so as to increase the rigidity of the movable j aw at the outlet 8 .
  • the grooved plate 13 has a plurality o f reinforcement ribs 74 which are directed towards the framework 73 of the movable j aw .
  • the ribs 74 can extend parallel and/or transversely to the flow direction F of the material . The invention thereby achieves the obj ects set out, further af fording a number of advantages with respect to the prior art being referred to , including the capacity for adj usting the dimensions of the crushed gravel and a substantial increase in the production capacity of the bucket .
  • the bucket is particularly resistant to the loads brought about by the material during the crushing operations .
  • Another important advantage which is achieved is the fact that the power consumed by the bucket according to the invention i s less than the power consumed by the conventional buckets as a result of the greater rigidity of the frame and the crushing elements , further involving a reduction in the processing time and a reduction of the noise emissions .

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crushing And Grinding (AREA)

Abstract

Un godet broyeur (1) comprend un bâti (2) dans lequel sont définies une entrée de matériau (7) et une sortie de matériau et une direction d'écoulement de matériau de l'entrée (7) à la sortie et des éléments de broyage (10, 11) comprenant une mâchoire mobile (10) et une mâchoire fixe (11) qui sont reçues dans le bâti (2). La mâchoire mobile comprend une paire d'éléments longitudinaux qui s'étendent dans la direction d'écoulement et une pluralité d'éléments transversaux qui sont mutuellement parallèles et qui s'étendent de l'un des éléments longitudinaux vers l'autre.
EP22797122.3A 2021-11-17 2022-09-29 Godet broyeur Pending EP4433657A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202100029093 2021-11-17
PCT/IB2022/059283 WO2023089393A1 (fr) 2021-11-17 2022-09-29 Godet broyeur

Publications (1)

Publication Number Publication Date
EP4433657A1 true EP4433657A1 (fr) 2024-09-25

Family

ID=79831527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22797122.3A Pending EP4433657A1 (fr) 2021-11-17 2022-09-29 Godet broyeur

Country Status (3)

Country Link
EP (1) EP4433657A1 (fr)
CN (1) CN118510964A (fr)
WO (1) WO2023089393A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPS041302A0 (en) * 2002-01-17 2002-03-07 Went, Gregory N Concrete and rock hydraulically operated jaw crusher bucket
DE60211037T2 (de) * 2002-08-29 2006-09-14 Meccanica Breganzese S.R.L. Becher zum zerkleinern und sieben von steinen
US8322643B2 (en) * 2010-07-23 2012-12-04 Mining Technologies International Inc. Rock crusher attachment
CN213254601U (zh) * 2020-09-15 2021-05-25 成都市启发工程机械有限公司 锁紧机构和颚式破碎机

Also Published As

Publication number Publication date
WO2023089393A1 (fr) 2023-05-25
CN118510964A (zh) 2024-08-16

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