Smashing assembly

Abstract

A comminution assembly (110) is disclosed. The comminution assembly (110) includes a first comminution shaft (112) and a second comminution shaft (113) laterally spaced from the first comminution shaft (112). During use, the first crushing shaft (112) and the second crushing shaft (113) are matched to crush materials passing between the first crushing shaft and the second crushing shaft. The first comminuting shaft (112) includes a comminuting element mounting assembly (114) including (i) an element seat (116) operatively associated with the first comminuting shaft (112), and (ii) a comminuting element (118) operatively adapted to extrude material passing between the first and second comminuting shafts (112, 113). The comminuting element (118) is removably mounted to the element seat (116).

Description

Technical Field

[0001] The present invention relates to a crushing assembly. In a non-exclusive aspect, the present invention relates to a crushing assembly for crushing construction waste such as concrete. Background Art

[0002] One type of crusher for crushing construction waste includes two laterally spaced-apart crushing shafts. Each shaft includes a plurality of crushing elements extending outwardly, and these crushing elements are adapted to extrude large pieces of material. When the shafts rotate and the material passing between the shafts is extruded by the crushing elements, the material is broken into smaller parts.

[0003] The disadvantage of the above-mentioned crushing shafts is high cost. Even if only one or two crushing elements are worn or damaged, the entire crushing shaft needs to be replaced. Such replacement will cause the crusher to stop operating, resulting in cost losses and inconvenience due to machine downtime.

[0004] Object of the Invention

[0005] The object of the present invention is to provide a crushing assembly that solves the above problems or at least provides a useful alternative crushing assembly. Summary of the Invention

[0006] According to a first aspect, a crushing assembly is disclosed herein, comprising:

[0007] A first crushing shaft; and

[0008] A second crushing shaft, which is laterally spaced apart from the first crushing shaft,

[0009] The first and second crushing shafts cooperate in use to crush the material passing between the first and second crushing shafts;

[0010] Wherein, the first crushing shaft includes a crushing element mounting assembly, and the crushing element mounting assembly includes (i) an element seat operatively associated with the first crushing shaft and (ii) a crushing element operatively adapted to crush the material passing between the first and second crushing shafts, and the crushing element is detachably mounted to the element seat.

[0011] Preferably, (i) the element seat defines an outer surface of the element seat, and (ii) the crushing element defines an inner surface of the crushing element, wherein when the crushing element is mounted to the element seat, the inner seat surface of the crushing element abuts against the outer surface of the element seat.

[0012] Preferably, the element seat is attached to a collar, and the collar is adapted to be coupled with the first crushing shaft.

[0013] Preferably, the collar defines a hole operatively adapted to receive the first crushing shaft.

[0014] Preferably, the collar is fixed to the first comminution shaft.

[0015] Preferably, the comminution element includes an element base and first and second element legs extending outwardly from the element base.

[0016] Preferably, the collar defines first and second annular grooves located on opposite sides of the element seat.

[0017] Preferably, when the comminution element is mounted to the element seat, a portion of the first element leg is located within the first annular groove, and a portion of the second element leg is located within the second annular groove.

[0018] Preferably, when the comminution element is mounted to the element seat, the element seat is surrounded by the element base and the first and second element legs.

[0019] Preferably, the comminution element is fixed to the element seat by one or more fasteners.

[0020] Preferably, the element seat is a first element seat, and a second element seat is attached to the collar opposite the first element seat.

[0021] Preferably, the comminution element is a first comminution element, and a second comminution element is detachably mounted to the second element seat.

[0022] In a second aspect, there is provided a comminution element mounting assembly operatively adapted for use in the comminution assembly of the first aspect.

[0023] In a third aspect, there is provided a comminution element operatively adapted for use in the comminution assembly according to the first aspect.

[0024] In a fourth aspect, there is provided a collar operatively adapted for use in the comminution assembly of the first aspect.

[0025] In a fifth aspect, there is disclosed a comminution element mounting assembly for a comminution assembly. The comminution assembly includes a first comminution shaft and a laterally spaced second comminution shaft. The comminution element mounting assembly includes (i) an element seat operatively associated with the first comminution shaft, and (ii) a comminution element operatively adapted to comminute material passing between the first and second comminution shafts, the comminution element being detachably mounted to the element seat.

[0026] Preferably, the element seat includes first and second element seat ears defining a seat recess therebetween, and wherein the comminution element includes an element projection extending outwardly from the element base of the comminution element, the element projection being adapted to be positioned within the seat recess of the element seat.

[0027] Preferably, each of the first and second element seat lugs includes a fastener opening, and the comminution element further includes a corresponding element opening, which is adapted to be aligned with the fastener openings of the first and second element seat lugs for fixation using an elongate fastener.

[0028] Preferably, each of the first and second element seat lugs includes a lateral opening extending through the corresponding fastener opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Preferred embodiments of the present invention will be described below by way of example only with reference to the accompanying drawings, in which:

[0030] Figure 1 is an end view of a first comminution shaft of a comminution assembly according to a first embodiment;

[0031] Figure 2 is Figure 1 a perspective view of a comminution element mounting assembly of the comminution assembly in

[0032] Figure 3 is Figure 2 a front view of the comminution element mounting assembly in

[0033] Figure 4 is a perspective view of a comminution assembly according to a second embodiment;

[0034] Figure 5 is for Figure 4 a perspective view of an element body of the comminution assembly in

[0035] Figure 6 is adapted to be fixed to Figure 5 an element body of the comminution assembly in DETAILED DESCRIPTION

[0036] Figure 1 A comminution assembly according to a first embodiment is shown, which comminution assembly is generally designated by reference numeral 10. The comminution assembly 10 is adapted for use in a comminutor, such as a shredder sold under the trade name Impaktor 250EVO and manufactured by Arjes GmbH. In such use, the comminution assembly 10 will replace the side comb assembly currently used in the Impaktor 250EVO.

[0037] Figure 1Shows the first crushing shaft 12 of the crushing assembly 10. The crushing assembly 10 in use includes a second crushing shaft (not shown) that is laterally spaced from the first crushing shaft 12. In use, the first crushing shaft 12 and the second crushing shaft cooperate in a conventional manner to crush the material passing between the first crushing shaft 12 and the second crushing shaft. In one application, the crushing assembly 10 is used to crush construction waste, such as concrete. In another application, the crushing assembly 10 can be used as a shredder to crush wood products, such as pallets.

[0038] The first crushing shaft 12 includes a crushing element mounting assembly 14. The first crushing shaft 12 includes a plurality of additional crushing element mounting assemblies 14 similar to the crushing element mounting assembly 14, and the plurality of additional crushing element mounting assemblies 14 are longitudinally spaced along the length of the first crushing shaft 12. Further refer to Figure 2 and Figure 3 , the crushing element mounting assembly 14 includes (i) an element body 15 having an element seat 16 that is operatively associated with the first crushing shaft 12, and (ii) a crushing element 18 that is operatively adapted to squeeze the material passing between the first crushing shaft 12 and the second crushing shaft (not shown). The crushing element 18 is detachably mounted to the element seat 16 for the purposes discussed below.

[0039] The element seat 16 defines an element seat outer surface 20, and the crushing element 18 in turn defines a crushing element inner surface 22. When the crushing element 18 is mounted to the element seat 16, the crushing element inner surface 22 abuts against the element seat outer surface 20.

[0040] The element body 15 includes an annular collar 24 attached to the element seat 16. The collar 24 is adapted to be coupled to the first crushing shaft 12. The collar 24 defines a hole 26 that is operatively adapted to receive the first crushing shaft 12. In use, the collar 24 is typically fixed to the first crushing shaft 12 by welding. Before being fixed to the first crushing shaft 12, the crushing shaft 12 is introduced into the hole 26 of the collar 24. Thereafter, the collar 24 slides along the crushing shaft 12 until the collar 24 is in the desired position, and then the collar 24 is fixed.

[0041] The crushing element 18 includes an element base 28 and first and second element legs 30, 32 extending outwardly from the element base 28. The collar 24 defines first and second collar grooves 34, 36, as Figure 3As shown, the first and second collar grooves 34, 36 are respectively located on opposite sides of the element seat 16. When the crushing element 18 is mounted to the element seat 16, a portion of the first element leg 30 is located within the first collar groove 34, and a portion of the second element leg 32 is located within the second collar groove 36. When the crushing element 18 is mounted to the element seat 16, the element seat 16 is surrounded by the element base 28 and the first and second element legs 30, 32. The portions of the first and second element legs 30, 32 respectively located within the first and second collar grooves 34, 36 help to hold the crushing element 18 in place during the crushing operation.

[0042] In this embodiment, the first and second element legs 30, 32 provide wear surfaces 33 which will be worn away due to long-term crushing during use. Further noted, the shape of the outer surfaces of the first and second legs 30, 32 can be changed to make them more suitable for different materials that will undergo the crushing process.

[0043] The crushing element 18 is fixed to the element seat 16 by two fasteners 38. In this embodiment, the fasteners 38 are provided in the form of two countersunk bolts.

[0044] In this embodiment, the element seat 16 is the first element seat, and the element body includes a second element seat 40 which is attached to the collar 24 at a position exactly opposite to the first element seat 16. Further, the crushing element 18 is the first crushing element, and a second crushing element 42 is detachably mounted to the second element seat 40.

[0045] After the crushing element 18 and the second crushing element 42 have undergone a certain amount of wear, the fasteners 38 can be removed to loosen the crushing element 18 and the second crushing element 42. Then, the crushing element 18 and the second crushing element 42 can be removed from the element seat 16 and the second element seat 40 respectively. Then, the crushing element 18 and the second crushing element 42 can be rotated 180 degrees so that the unworn surfaces of the crushing element 18 and the second crushing element 42 are in the working position to squeeze the material between the first crushing shaft 12 and a second crushing shaft (not shown). This feature also enables the user to replace only the worn crushing elements with new / replacement crushing elements. The user can purchase individual spare crushing elements in order to replace individual worn crushing elements. This is different from the current crushing assemblies where the entire crushing shaft needs to be replaced even when only a few of the crushing elements are worn.

[0046] In an embodiment (not shown), the element seat 16 and the second element seat 40 do not include collars but are directly welded to the outer surface of the first crushing shaft 12.

[0047] Figure 4The comminution assembly 110 of the second embodiment is shown, and the comminution assembly 110 includes a first comminution shaft 112 and a second comminution shaft 113 that is laterally spaced from the first comminution shaft 112. The first and second comminution shafts 112, 113 include a plurality of comminution element mounting assemblies 114 that are longitudinally spaced along the lengths of the first and second comminution shafts 112, 113 respectively. Further referring to Figure 5 and Figure 6 , each comminution element mounting assembly 114 includes (i) an element body 115 having a first element seat 116 that is operatively associated with the first or second comminution shaft 112, 113 respectively, and (ii) a comminution element 118 that is operatively adapted to extrude the material passing between the first and second comminution shafts 112, 113. Each comminution element 118 is detachably mounted to the associated element seat 116.

[0048] The element seat 116 defines an element seat outer surface 120, and the comminution element 118 in turn defines a comminution element inner surface 122. When the comminution element 118 is mounted to the element seat 116, the comminution element inner seat surface 122 abuts against the element seat outer surface 120.

[0049] The element body 115 includes an annular collar 124 attached to the element seat 116. The collar 124 is adapted to be coupled to the first or second comminution shaft 112, 113. The collar 124 defines a hole 126 that is operatively adapted to receive the first or second comminution shaft 112, 113.

[0050] The comminution element 118 includes an element base 128 and first and second element legs 130, 132 that extend outwardly from the element base 128. When the comminution element 118 is mounted to the element seat 116, the element seat 116 is surrounded by the element base 128 and the first and second element legs 130, 132.

[0051] The element seat 116 includes first and second element seat ears 150, 152 that define a seat groove 154 therebetween. The comminution element 118 in turn includes an element projection 156 that extends outwardly from the element base 128. When the comminution element 118 is placed on the element seat 116, the element projection 156 is configured and adjusted to be located within the seat groove 154 formed by the first and second element seat ears 150, 152.

[0052] The component seat 116 is the first component seat, and the component body 118 includes a second component seat 140 which is attached to the collar 124 at a position exactly opposite to the first component seat 116. The second crushing element 118 is detachably mounted to the second component seat 140 during use. The second component seat 140 includes first and second component seat lugs 158, 160 that operate in the same manner as the first component seat 116.

[0053] Each of the first and second component seat lugs 150, 158, 152, 160 includes a fastener opening 162. The crushing element 118 further includes an element opening 164. By aligning the fastener openings 162 of the first and second component seat lugs 150, 158, 152, 160 with the element opening 164 respectively, an elongate fastener (not shown) in the form of a bolt can pass through these openings to fix the crushing element 118 to the first and second component seat lugs 150, 152. Each of the first and second component seat lugs 150, 158, 152, 160 includes a lateral opening 166 passing through its corresponding fastener opening 162 to fix a nut within the corresponding fastener opening 162 of the first and second component seat lugs 150, 158, 152, 160.

[0054] Although the present invention has been described with reference to specific examples, those skilled in the art will understand that the present invention can be implemented in many other forms.

[0055] List of reference numerals:

[0056] 10 Crushing assembly of the first embodiment

[0057] 12 First crushing shaft

[0058] 14 Crushing element mounting assembly

[0059] 15 Component body

[0060] 16 Component seat

[0061] 18 Crushing element

[0062] 20 Outer surface of the component seat

[0063] 22 Inner surface of the component

[0064] 24 Collar

[0065] 26 Hole

[0066] 28 Component base

[0067] 30 First component leg

[0068] 32 Second component leg

[0069] 33 Wear surface

[0070] 34 First ring groove

[0071] 36 Second ring groove

[0072] 38 Fastener

[0073] 40 Second element seat

[0074] 42 Second crushing element

[0075] 110 Crushing assembly of the second embodiment

[0076] 112 First crushing shaft

[0077] 113 Second crushing shaft

[0078] 114 Crushing element mounting assembly

[0079] 115 Element body

[0080] 116 First element seat

[0081] 118 Crushing element

[0082] 120 Outer surface of the element seat

[0083] 122 Inner surface of the crushing element

[0084] 124 Collar

[0085] 126 Hole

[0086] 128 Element base

[0087] 130 First element leg

[0088] 132 Second element leg

[0089] 140 Second element seat

[0090] 150 First element seat lug

[0091] 152 Second element seat lug

[0092] 154 Seat groove

[0093] 156 Element protrusion

[0094] 158 First element seat lug

[0095] 160 Second element seat lug

[0096] 162 Fastener opening

[0097] 164 Component opening

[0098] 166 Lateral opening

Claims

1. A comminution assembly, comprising: A first comminution shaft; And A second comminution shaft, the second comminution shaft being laterally spaced apart from the first comminution shaft, The first and second comminution shafts cooperate in use to comminute material passing between the first comminution shaft and the second comminution shaft; Wherein, the first comminution shaft includes a comminution element mounting assembly, the comminution element mounting assembly includes: (i) an element seat, the element seat being operatively associated with the first comminution shaft; and (ii) a comminution element, the comminution element being operatively adapted to comminute material passing between the first and second comminution shafts, the comminution element being detachably mounted to the element seat.

2. The comminution assembly according to claim 1, wherein, (i) The element seat defines an element seat outer surface, and (ii) the comminution element defines a comminution element inner surface, wherein when the comminution element is mounted to the element seat, the comminution element inner seat surface abuts the element seat outer surface.

3. The comminution assembly according to claim 2, wherein, The element seat is attached to a collar, the collar being adapted to be coupled to the first comminution shaft.

4. The comminution assembly according to claim 3, wherein, The collar defines a hole that is operatively adapted to receive the first comminution shaft.

5. The comminution assembly according to claim 4, wherein, The collar is fixed to the first comminution shaft.

6. The comminution assembly according to claim 5, wherein, The comminution element includes an element base and first and second element legs extending outwardly from the element base.

7. The comminution assembly according to claim 6, wherein, The collar defines first and second collar grooves, the first and second collar grooves being located on opposite sides of the element seat.

8. The comminution assembly according to claim 7, wherein, When the comminution element is mounted to the element seat, a portion of the first element leg is located within the first collar groove, and a portion of the second element leg is located within the second collar groove.

9. The comminution assembly according to claim 6, wherein, When the comminution element is mounted to the element seat, the element seat is surrounded by the element base and the first and second element legs.

10. The comminution assembly according to claim 6, wherein, The comminution element is fixed to the element seat by one or more fasteners.

11. The comminution assembly according to claim 10, wherein, The element seat is a first element seat, and a second element seat is attached to the collar opposite the first element seat.

12. The comminution assembly according to claim 11, wherein, The comminution element is a first comminution element, and a second comminution element is detachably mounted to the second element seat.

13. The comminution assembly according to claim 1, wherein, The element seat includes first and second element seat lugs, the first and second element seat lugs defining a seat groove therebetween, and wherein the comminution element includes an element projection extending outwardly from the element base of the comminution element, the element projection being adjusted to be located within the seat groove.

14. A comminution element mounting assembly for a comminution assembly, the comminution assembly including a first comminution shaft and a laterally spaced second comminution shaft, the comminution element mounting assembly including (i) an element seat operatively associated with the first comminution shaft, and (ii) a comminution element operatively adapted to comminute material passing between the first and second comminution shafts, the comminution element being detachably mounted to the element seat.

15. The crushing element mounting assembly according to claim 14, wherein, The element seat includes first and second element seat lugs, the first and second element seat lugs defining a seat groove therebetween, and wherein the comminution element includes an element projection extending outwardly from the element base of the comminution element, the element projection of the comminution element being adjusted to be located within the seat groove of the element seat.

16. The comminution element mounting assembly according to claim 15, wherein, Each of the first and second element seat lugs includes a fastener opening, and the comminution element further includes corresponding element openings that are adapted to be aligned with the fastener openings of the first and second element seat lugs for fixation using an elongate fastener.

17. The comminution element mounting assembly according to claim 16, wherein, Each of the first and second element seat lugs includes a transverse opening passing through the corresponding fastener opening.

18. A comminution element mounting assembly that is operatively adapted to be used in a comminution assembly according to any one of claims 1 to 13.

19. A comminution element that is operatively adapted to be used in a comminution assembly according to any one of claims 1 to 13.

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