Gyratory or cone crushers and mantle for gyratory or cone crushers

Abstract

A mantle (1, 1b) for a gyratory or cone crusher comprises a frame provided with a bowl (2) as a first crushing shell; a crusher head provided with a mantle as a second crushing shell, wherein the mantle and the bowl define a crushing gap therebetween. The mantle comprises a central axis (Z), a first end (3) and a second end (4) along the central axis, and an outer peripheral surface defined by a generatrix rotating around the central axis, which outer peripheral surface constitutes a crushing surface (5) of the mantle, and the mantle has an outer diameter at the second end (4) that is greater than an outer diameter at the first end (3). One or more recesses (10) are formed in the crushing surface (5) at the second end (4) of the mantle (1, 1b), and one or more cavities (20) for receiving wear inserts (40) are formed in the crushing surface (5), and / or one or more wear inserts (40) are incorporated into or into the crushing surface (5).

Description

Technical Field

[0001] This invention relates to a cover-shaped component for a rotary or cone crusher, and to a rotary or cone crusher including the cover-shaped component.

[0002] Rotary crushers and cone crushers are two types of rock crushing systems that typically split rocks, stones, or other materials in the crushing gap between stationary and moving elements.

[0003] A rotary or cone crusher includes a head assembly comprising a crusher head that rotates about a vertical axis within a stationary bowl-shaped component attached to the main frame of the rock crusher. The crusher head is assembled around an eccentric component that rotates about an axis to transmit rotational motion to the crusher head, which crushes the material as it travels through the crushing chamber or gap between the crusher head and the bowl-shaped component. The crushed material exits the crusher through the bottom of the crushing gap.

[0004] Although rotary crushers and cone crushers operate on the same principle, the longer shaft or spindle of a rotary crusher is generally supported at its upper end by a spider bearing, while the shorter shaft of a cone crusher is not suspended but supported in bearings below the slewing head or cone. Rotary crushers are typically used as primary crushers, i.e., heavy-duty machines designed to process large-sized materials. Secondary and tertiary crushers are designed to handle relatively small feeds. Cone crushers are typically used as downstream crushers. Background Technology

[0005] Rotary and cone crushers utilize wear parts to protect the machine from damage and perform the actual crushing of materials. Two types of wear parts are shroud-shaped elements and a group of several cup-shaped liners, particularly concave liners. The shroud-shaped elements are fixed to the main shaft, while the concave liners (or simply "concave elements") are fixed to the crusher's frame or top shell. The concave elements are arranged in several rows, positioned on top of each other.

[0006] Depending on the properties of the material being crushed and the desired machine-specific service level, wear parts can be made of chilled cast iron or steel alloys such as manganese steel. Manganese steel combines extremely high toughness with high wear resistance, and has therefore become a common choice for crushing hard, tough rock, even regardless of the crusher's service level or type. A common material is 12-14% manganese steel, also known as Hadfield steel (high manganese steel). Different alloys have been used for the upper, middle, and bottom liner sections of the crushing chamber.

[0007] Typically, both the shaped and concave parts wear and deform due to the significant pressure and impact loads they transmit. Therefore, these worn parts are replaced periodically. The duration of these intervals is influenced by several factors, one of which is the wear profile or wear pattern of both the shaped and concave parts. Avoiding undesirable wear patterns increases the lifespan of both the shaped and concave parts, thereby reducing downtime costs.

[0008] EP0 506 126 A1 describes a cover (movable component) for a cone crusher in its prior art section. Multiple grooves are formed on the outer peripheral surface of the cover of the truncated cone structure and extend in the same direction as the generating line (generatrix) of the cover.

[0009] US2008 / 0041995 A1 relates to a cone crusher with a crushing surface, comprising a cone head and a concave cup-shaped component. At least one of the head or the cup-shaped component includes a segmented wear liner. The wear liner may include a plurality of wear-resistant inserts. Summary of the Invention

[0010] In view of the above, one object of the present invention is to extend the service life of worn parts of rotary or cone crushers.

[0011] To achieve this objective, the present invention provides a cover-shaped component for a rotary or cone crusher.

[0012] The cover-shaped member includes a central axis, a first end and a second end along the central axis, and an outer peripheral surface defined by a generatrix rotating about the central axis. The outer diameter of the cover-shaped member at the second end is larger than the outer diameter at the first end. The outer peripheral surface constitutes the breakage surface of the cover-shaped member. According to the invention, one or more grooves are formed in the breakage surface at the second end of the cover-shaped member, and one or more cavities for receiving wear-resistant inserts are formed in the breakage surface, and / or one or more wear-resistant inserts are coupled to or incorporated into the breakage surface.

[0013] In the cover-shaped part of the present invention, the combination of the groove (on the one hand) and the wear-resistant insert (on the other hand) actively affects the wear profile of the cover-shaped part.

[0014] First, consider the groove, which is designed to facilitate the discharge of finely crushed material from the crushing zone. The further downward the material moves within the crushing gap, the finer the fragments become, and the fewer the gaps between the material pieces. In certain situations, i.e., in the high-density area near the narrowest part of the crushing gap where material is overpacked, this can lead to crusher blockage. The groove at the lower end of the cover-shaped member of this invention facilitates the discharge of fines from the crushing gap, thereby reducing the risk of packing.

[0015] Regarding the shape and construction of the grooves, it is particularly advantageous that the grooves extend along the crushing surface in a direction generally from the second end of the cover-shaped member toward the first end. The grooves may extend substantially in the direction of a corresponding generatrix of the frame or at an angle to it, or substantially parallel to the central axis of the cover-shaped member in a straight line or curve, provided that at least a portion of the extension of each groove is generally toward the second end (lower end) of the cover-shaped member, so as to provide a passage for fine debris to leave the crushing gap.

[0016] For the same reason, namely, in order to allow the debris to leave the crushing gap, it is advantageous that the groove is open at the second end of the cover-shaped part, rather than having a closed bottom at the second end of the cover-shaped part.

[0017] In a practical embodiment, one or more grooves may be spaced circumferentially at regular intervals on the broken surface, thereby providing a uniform operating pattern around the entire periphery of the rotationally symmetrical cover.

[0018] Regarding the shape of the grooves themselves, one or more grooves may each be, for example, C-shaped, U-shaped, or V-shaped in a section perpendicular to the central axis, particularly a V-shaped shape with a rounded bottom. Alternatively or additionally, the width and / or depth of each of the one or more grooves may increase toward the second end of the cover-shaped member.

[0019] In addition to the groove, one or more cavities for receiving the wear-resistant insert are also formed in the crushing surface, and / or one or more wear-resistant inserts are coupled to or incorporated into the crushing surface. This means that the cover-shaped member can be positioned in the following states: for example, a cavity has been formed in the crushing surface, but the wear-resistant insert has not yet been inserted into the cavity; or for example, a cavity has been formed in the crushing surface, and the wear-resistant insert has also been inserted into the cavity; or for example, the wear-resistant insert has been coupled to the crushing surface without forming a cavity to receive the insert. Therefore, "cavity and / or insert" will be referred to below.

[0020] Depending on the specific application, one or more cavities and / or wear-resistant inserts can be formed in various specific patterns in the fractured surface:

[0021] The cavity and / or insert may be arranged in at least one row, particularly in a circumferential row in a plane perpendicular to the central axis of the cover, and / or in at least one column extending from the second end of the cover toward the first end and particularly along the generatrix of the cover.

[0022] One or more cavities and / or inserts in one row may be offset relative to one or more cavities and / or inserts in another row in the circumferential direction of the cover.

[0023] One or more cavities and / or inserts in one column may be offset relative to one or more cavities and / or inserts in another column along the generatrix of the cover.

[0024] Regardless of the specific pattern of the cavity and / or insert, the fracture surface may include a high-wear section located in the region between the first and second ends of the cover-shaped member, in which the cavity and / or insert is formed to have a higher density than that in at least one other section of the fracture surface.

[0025] The spacing between cavities and / or inserts in one row can be wider than the spacing between cavities and / or inserts in another row (particularly the row closer to the second end of the cover). Wider spacing can be achieved by fewer cavities per row and / or by a larger diameter of the cover. Alternatively or additionally, the spacing between adjacent cavities in a row can become wider towards the first end of the cover. These measures result in a closer spacing of cavities in high-wear areas near the second end of the cover.

[0026] One or more cavities and / or wear-resistant inserts may also be arranged in various ways relative to one or more recesses. For example, viewed along the outer periphery of the cover-shaped member, cavities and / or inserts may be formed in the fracture surface between one or more recesses. One or more cavities and / or inserts may be aligned with each of the one or more recesses along a corresponding generatrix of the cover-shaped member. The areas along the fracture surface located between the recess and the first end of the cover-shaped member, and / or the areas along the fracture surface located between the recess and the second end of the cover-shaped member, may also be without cavities and / or inserts.

[0027] Wear-resistant inserts can be attached to or incorporated into the crushing surface in various ways. The insert can be brazed, press-fitted, or otherwise attached to or incorporated into the crushing surface of the cover. The insert can protrude from the crushing surface, be flush with the crushing surface, or be recessed from the crushing surface. In the latter case, the insert can be embedded in the crushing surface, thus setting back from the crushing surface when the cover is new. Once the cover wears down, the insert becomes exposed because it is harder than the surrounding material. In yet another embodiment, no cavity is formed, and the insert is attached to the crushing surface.

[0028] The cover-shaped member of the present invention can be configured as a single cover-shaped member for use in rotary or cone crushers. The cover-shaped member of the present invention can also be configured as a lower cover-shaped member for connection with an upper cover-shaped member, the upper cover-shaped member and the lower cover-shaped member being aligned along a central axis.

[0029] The present invention also provides a cover-shaped component for a rotary or cone crusher, wherein the cover-shaped component includes a lower cover-shaped component and an upper cover-shaped component, the lower cover-shaped component and the upper cover-shaped component are configured to be connected and aligned along a central axis, wherein the lower cover-shaped component is the cover-shaped component as described above.

[0030] Finally, the present invention also provides a rotary or cone crusher, comprising: a frame having a bowl-shaped member as a first crushing shell; and a crusher head having a cover-shaped member as a second crushing shell, wherein a crushing gap is defined between the cover-shaped member and the bowl-shaped member, and wherein the cover-shaped member is constructed as described above.

[0031] In all embodiments of the invention, the generatrix defining the outer peripheral surface of the cover member by rotation about a central axis can be straight, resulting in the cover member having a substantially truncated conical shape, or the generatrix can be at least partially curved, resulting in the broken surface of the cover member being at least partially concave and / or at least partially convex. Attached Figure Description

[0032] The above and additional objects, features, and advantages of the invention will be better understood from the following illustrative and non-limiting detailed description of preferred embodiments of the invention with reference to the accompanying drawings, in which:

[0033] Figure 1 A first embodiment of the cover-shaped member according to the present invention is shown;

[0034] Figure 2 A second embodiment of the cover-shaped member according to the present invention is shown;

[0035] Figure 3A third embodiment of the cover-shaped member according to the present invention is shown;

[0036] Figure 4 yes Figure 3 Detailed view of a portion of the outer fracture surface of the cover-shaped component;

[0037] Figure 5 yes Figure 3 A partial top view of the cover-shaped component;

[0038] Figure 6 yes Figure 3 A longitudinal sectional view of a portion of the cover-shaped component and the associated bowl-shaped component;

[0039] Figure 7 A fourth embodiment of the cover-shaped member according to the present invention is shown;

[0040] Figure 8 yes Figure 7 A partial top view of the cover-shaped component;

[0041] Figure 9 yes Figure 7 A partial side view of the cover-shaped component;

[0042] Figure 10 A fifth embodiment of the cover-shaped member according to the present invention is shown;

[0043] Figure 11 A sixth embodiment of the cover-shaped member according to the present invention is shown;

[0044] Figure 12 The prior art cone crusher and rotary crusher are schematically illustrated;

[0045] Figure 13 An exemplary cover-shaped component of a rotary crusher is shown in a bell-shaped cross-section; and

[0046] Figure 14 Exemplary wear patterns of the concave and hood-shaped parts of a prior art rotary crusher are shown in cross-section. Detailed Implementation

[0047] Figure 12 The previously known cone crusher 100 and the previously known rotary crusher 200 are schematically shown in longitudinal cross-section.

[0048] In the cone crusher 100 and the rotary crusher 200, the inner crushing shell (also referred to as the cover-shaped part 1) is mounted on the crusher head. The outer crushing shell (also referred to as the bowl-shaped part 2) is mounted on the crusher frame. The cover-shaped part 1 and the bowl-shaped part 2 constitute wear parts that must be replaced frequently. In larger rotary crushers, the bowl-shaped part 2 is usually composed of multiple segments (also referred to as concave parts due to their shape), which are arranged in one or more rows in a ring.

[0049] The crushing chamber or crushing gap is formed between the cover-shaped part 1 and the bowl-shaped part 2. When the crusher 100 / 200 is operating, the material to be crushed is introduced into the crushing gap and is crushed between the cover-shaped part 1 and the bowl-shaped part 2 due to the rotational movement of the crusher head. During this rotational movement, the cover-shaped part 1 approaches the bowl-shaped part 2 along the generatrix of rotation and moves away from the bowl-shaped part 2 along the generatrix of opposite diameter.

[0050] During this crushing operation, significant forces are applied to the cover-shaped part 1 and the cup-shaped part 2, resulting in significant wear on these wear parts.

[0051] Figure 13 A portion of the lower end of the cover-shaped component is shown in cross-section, with the area where the most significant forces are generated during operation marked by a dashed ellipse. The wear pattern of the cover-shaped component is shown in the figure, and it is clear that the broken surface of the cover-shaped component has been worn into a bell shape.

[0052] Figure 14 A portion of the concave and hood-shaped parts is shown in cross-section, illustrating their wear patterns. The hood-shaped part exhibits a typical wear pattern: a "dish" is left in a parallel region just above the bottom edge, while the very bottom edge shows little wear. The resulting worn portion of the hood-shaped part has... Figure 13 The bell-shaped outline is shown.

[0053] The cover-shaped part of the present invention is designed to avoid undesirable, uneven wear patterns in the cover-shaped and cup-shaped parts of cone crushers or rotary crushers.

[0054] Figure 1 A first embodiment of the cover-shaped member 1 according to the present invention is shown. The cover-shaped member 1 includes: a central axis Z; a first end (upper end) and a second end (lower end) along the central axis Z; and an outer peripheral surface constituting the breakable surface 5 of the cover-shaped member.

[0055] Although the shape of the cover member 1 is basically a frustoconical shape, the crushing surface 5 is slightly concave when viewed along the generatrix of the cover member, especially near the lower end of the cover member 1. The slightly increased bottom diameter of the resulting cover member compared to a pure frustoconical shape helps ensure that the cover member has the required lifespan.

[0056] The following two features are provided to promote the desired wear pattern on the broken surface 5 of the cover-shaped member: on the one hand, a series of grooves 10 at the lower circumferential edge 4 of the broken surface 5 of the cover-shaped member; and on the other hand, a plurality of cavities 20 for wear inserts, the plurality of cavities being distributed on the broken surface 5 of the cover-shaped member.

[0057] The groove 10 at the lower circumferential edge 4 extends approximately along the crushing surface 5 in a direction from the lower end of the cover-shaped member toward the upper end, and opens at the lower end of the cover-shaped member to provide a passage for fine debris to leave the crushing gap. This reduces the power peak of the crusher, as well as the risk of clogging or "blockage".

[0058] The wear shape 6 of the cover part 1 can also be controlled by allowing fine debris to pass through; in particular, it can reduce the unwanted bell shape of the cover part and the phenomenon known as "cupping".

[0059] Avoiding undesirable wear profiles, power spikes, and clogging in shroud components will in turn reduce production losses and mechanical failures and provide shroud components with a longer lifespan.

[0060] In this embodiment, the grooves 10 are spaced at regular intervals along the lower circumferential edge 4 of the broken surface 5 of the cover-shaped member.

[0061] Each groove 10 has a generally vertical extension, that is, an extension that is generally parallel to the central axis Z of the cover-shaped member.

[0062] Although the vertical extension of the groove 10 in this embodiment is relatively short, the length of the groove can vary depending on the specific application.

[0063] The cavity 20 is configured to accommodate a wear-resistant insert, which will be described in more detail below. The cavities 20 (and thus the inserts accommodated therein) are arranged in a pattern relative to each other and relative to a groove 10 selected according to the individual application. The various patterns according to this disclosure are designed with reference to wear patterns observed in conventional cover-shaped parts.

[0064] In the illustrated embodiment, the cavities are aligned around the lower portion of the crushing surface 5 in a matrix of rows and columns, with each row extending along the periphery of the cover-shaped member 1 and each column extending from the second end (lower end) 4 of the cover-shaped member toward the first end (upper end) 3. In this embodiment, each row extends in a plane perpendicular to the central axis of the cover-shaped member, while the columns follow each generatrix. However, in this embodiment and other embodiments, the extension of the rows and / or columns may also deviate from these specific directions, thereby resulting, for example, a spiral arrangement of the cavities 20.

[0065] Viewed along the outer periphery of the cover-shaped member 1, cavities 20 are formed in the fractured surface 5 between the grooves 10. These cavities 20 are aligned along the generatrices of the cover-shaped member 1. In this embodiment, the lower portion of the cover-shaped member includes a total of eight circumferential rows of cavities, and as seen along the circumferential direction of the cover-shaped member, three rows of cavities are disposed between two adjacent grooves. In this lower portion of the cover-shaped member, there are no cavities 20 in the area above the grooves 10.

[0066] In the region above the lower part of the cover-shaped member, several cavities 20 are aligned in rows along the periphery, wherein the circumferential spacing between adjacent cavities is wider than that in the lower part, and wherein a cavity in one circumferential row is offset relative to the cavity in the adjacent row. This results in the cavities in the lower part forming a generally denser pattern than those in the upper part. On the other hand, considering that the periphery of the cover-shaped member widens towards its lower edge, the highest concentration of inserts is in the region between the first and second ends of the cover-shaped member. This is also the region most subjected to excessive wear. Setting the inserts with the highest concentration in the region of greatest wear aims to optimize the wear life of the cover-shaped member and provide the best wear profile.

[0067] As described above, in this embodiment, the vertical extension of the groove 10 is relatively short. In fact, the groove 10 extends only from the second end of the cover-shaped member 1 toward the lowest descending cavity 20.

[0068] At the lower edge 4 of the cover-shaped member 1, the annular portion 6 of the crushing surface 5 is formed to extend substantially parallel to the central axis Z. This annular edge portion 6 does not have any cavities 20 for the wear-resistant insert. However, the groove 10 is formed to intersect with this annular edge portion 6.

[0069] The upper part of the cover-shaped component is provided with a longitudinal groove 30 to break the large boulder with less force and to compensate for the deformation (Mn growth) that is prone to occur over time in the top.

[0070] Figure 2 A second embodiment of the cover-shaped member according to the present invention is shown.

[0071] The cover-shaped component in this embodiment is similar in overall shape to Figure 1 The cover-shaped component in the design also relates to the shape and arrangement of the groove 10 located around the periphery of the cover-shaped component.

[0072] Figure 2 The cover-shaped component and Figure 1 The difference in the cover-shaped component lies in the position of the cavity 20 (both in an absolute sense and relative to the groove 10): Figure 2In this embodiment, the cavities are aligned in the circumferential rows and in the columns that conform to the corresponding generatrices. In this embodiment, the vertical extension of the groove 10 is still relatively short, and the groove 10 extends only from the second end of the cover-shaped member 1 towards the lowest descending part of the cavity 20. However, unlike... Figure 1 Furthermore, a row of cavities is located directly above each groove. Additionally, on the fracture surface 5, the cavities in a row are offset in the circumferential direction relative to the cavities in the adjacent row, and when viewed along the generatrix, the cavities in a column are offset relative to the cavities in the adjacent column.

[0073] In each column, the spacing between adjacent cavities widens towards the upper end of the cover-shaped member. This, in turn, results in the highest concentration of inserts in this embodiment being located in the high-wear region of the cover-shaped member (in...). Figure 2 (marked with dashed lines) to control wear shape and provide maximum lifespan.

[0074] Figure 3 A cover-shaped member according to a third embodiment of the present invention is shown. In this embodiment, the upper cover-shaped member segment or "upper cover-shaped member" 1a and the lower cover-shaped member segment or "lower cover-shaped member" 1b are aligned along the central axis Z of the cover-shaped member (see also...). Figure 6 ). Figure 3 The cover shown is the lower cover 1b, which includes a groove 10 according to the invention and a cavity 20 for an insert.

[0075] In this embodiment, there are a total of eleven (rows) of grooves 10.

[0076] The cavities 20 are arranged in a matrix of circumferential rows and columns, with no offset between cavities 20 in adjacent rows and columns except for the top two circumferential rows. No cavities 20 are formed in the region directly above the groove 10. Similar to the first and second embodiments, the spacing of the cavities 20 is closest in the high-wear region, thereby preventing cupping. Near the lower edge of the cover 1b, the spacing between adjacent cavities 20 is wider. Near the upper end of the cover 1b, each cavity row includes a smaller number of cavities 20, resulting in a larger spacing between adjacent cavities 20 in this upper region as well.

[0077] During the lifespan of the cover-shaped component, maintaining an appropriate distance between the cavity 20 and the groove 10 at the lower periphery controls the width and configuration of the groove 10, thus affecting the size of the material discharged from the crusher, while simultaneously reducing pressure in the crushing chamber and decreasing power peaks, especially near the end of the cover-shaped component's lifespan as a wear part. Figure 3 In the illustrated embodiment, the groove 10 extends from the lower edge 4 at the second end of the cover-shaped member 1b through a plurality of rows of cavities 20. Additionally, in this embodiment, the circumferential width of the groove 10 increases toward the lower edge 4 of the cover-shaped member 1b.

[0078] Figure 4 yes Figure 3 A detailed view of a portion of the broken surface 5 of the cover-shaped member 1b, in which the wear-resistant insert 40 has been fixed in the cavity.

[0079] The insert 40 is configured in such a way that it provides optimal decomposition of the broken material while also providing enhanced abrasion resistance for the replaceable cover 1b.

[0080] The following description of the insert 40 applies to this embodiment and all other embodiments of the present invention.

[0081] The insert 40 may comprise a solid material or a combination of materials. In one example, the insert comprises a substrate formed of a cemented metal carbide substrate, wherein an ultrahard material is bonded to the substrate to form a tip. The tip may comprise a coating of the ultrahard material, such as diamond, diamond-impregnated carbide, cemented metal carbide, chromium, titanium, aluminum, tungsten, and combinations thereof.

[0082] The insert 40 may be brazed, press-fitted, or otherwise bonded to or incorporated into the fracture surface 5 of the cover-shaped member, such as within the aforementioned cavity 20. Depending on the material to be reduced, the insert 40 may protrude from the fracture surface 5 to a certain extent. In some embodiments, the insert 40 may not protrude from the fracture surface 5, but may be flush with or recessed from it: in the latter case, the insert 40 may be embedded within the fracture surface 5, such that when the cover-shaped member is new, the surface of the insert 40 is away from the fracture surface 5 (e.g., 1-3 mm). Once the cover-shaped member wears down, the insert 40 becomes exposed due to its greater hardness than the surrounding material. In yet other embodiments, no cavity is formed, and the insert 40 is simply bonded to the fracture surface 5.

[0083] Various insert geometries can be adopted. Depending on the material and application of the cover 1, each geometry may be advantageous. In the insert 40, as shown... Figure 4 In the case of the circular shape shown, the diameter of the insert 40 can range from, for example, from 1 mm to 150 mm. Another exemplary shape of the insert 40 is elliptical, for example, with a length of 120 mm or 130 mm.

[0084] These inserts 40 may be joined or otherwise attached to any part of the cover 1, but preferably, the inserts 40 are attached to the lower part of the cover 1 that is most susceptible to wear.

[0085] Furthermore, some applications of the present invention may benefit from having specific insert placement patterns and densities at specific peripheries of the broken surface 5 of the cover 1. Several exemplary patterns have been described above and below for various embodiments. In principle, any combination of insert density and insert placement pattern can be used for any cover 1 according to the present invention.

[0086] Figure 5 yes Figure 3 A partial top view of the cover-shaped member 1b. From this view, it is clear that the circumferential width of the groove 10 increases radially outward from the bottom of the groove 10 toward the crushing surface 5 of the cover-shaped member 1b, so that in this top view and also in a section perpendicular to the central axis, the groove 10 has a V-shaped shape with a rounded bottom. The maximum width of the groove 10 located at the lower edge 4 of the cover-shaped member 1b is indicated by "w". The circumferential distance between the cavity 20 and either side of the groove 10 is indicated by "s". Positioning the insert close to the groove 10 limits the extent to which the groove 10 can expand during operation. In a particular example, the width of the groove 10 is 61 mm, and the maximum depth of the groove (viewed radially inward from the crushing surface 5) is 78 mm.

[0087] Figure 6 The figure shows a partial longitudinal section of the cover-shaped member 1 and the bowl-shaped member 2 according to the third embodiment, including the arrangement of the concave member (which, together with the cover-shaped member 1, forms a crushing chamber). The shape and position of one of the grooves 10 and a row of cavities 20 are clearly visible in the figure. In this embodiment and other embodiments, the depth of the cavities 20 (i.e., the extent to which the cavities 20 penetrate from the crushing surface 5 into the substrate of the cover-shaped member 1) is reduced for cavities 20 in the upper row compared to those in the lower row facing the lower edge 4 of the cover-shaped member 1. Furthermore, the depth of the grooves 10 is less than the depth of the cavities 20 in at least the bottommost row or multiple rows of cavities 20.

[0088] Figure 7 A cover-shaped member 1b according to a fourth embodiment of the invention is shown. Here, the cover-shaped member 1b is shown in its usage state: after a specific operating period (during which the cover-shaped member 1b has been worn), the transition area from the groove 10 toward the broken surface 5 of the cover-shaped member 1b has a more rounded shape. Figure 8 (It shows) Figure 7 (Top view of the central cover component) and Figure 9 (It shows) Figure 7 This is particularly evident in the side view of the area of ​​a groove 10 located at the lower edge 4 of the cover-shaped part 1b.

[0089] The cavities 20 and the inserts 40 disposed therein are arranged in a matrix of rows and columns, with no offset between adjacent cavities 20 except for the top three rows. No cavities 20 are formed in the area directly above the groove 10.

[0090] Figure 10 A cover-shaped member 1b according to a fifth embodiment of the invention is shown, which is again configured to serve as a lower cover-shaped member 1b. The positions of the cavities 20 distributed on the broken surface 5 of this cover-shaped member 1b are similar to... Figures 7-9 The position shown is within the cover-shaped component 1b. However... Figure 10 The cover-shaped member 1b is in a pre-wear state, and therefore the shape of the groove in the horizontal section (i.e., the section in the plane perpendicular to the axis Z of the cover-shaped member 1b) is similar to Figures 3-6 The shape shown in the embodiment, i.e., the transition area between the groove 10 and the broken surface 5, remains sharp. Furthermore, in this new state of the cover-shaped member 1b, the groove 10 extends from the second end 4 of the cover-shaped member 1b toward the first end 3 beyond... Figure 10 In the embodiment, all rows of cavities 20.

[0091] at last, Figure 11 A sixth embodiment of the cover-shaped member 1 according to the invention is shown. In this embodiment, the cover-shaped member 1 consists of an upper cover-shaped member 1a and a lower cover-shaped member 1b, which are aligned along the central axis Z of the cover-shaped member. The upper cover-shaped member 1a is no different from the upper cover-shaped member or upper cover-shaped member segment in a conventional two-piece cover-shaped member; it is provided with a longitudinal groove 30 to break large stones with less force and to compensate for deformation (Mn growth) in the top that is prone to occur over time. The lower cover-shaped member 1b is constructed according to the invention and includes a groove 10 at its lower edge and a cavity 20 for inserting a member on its broken surface 5.

[0092] While several specific embodiments of the invention have been described above, the scope of the invention is not limited thereto, and various modifications can be made within the scope of the invention as defined by the appended claims. For example, although the above embodiments are configured such that all grooves 10 of the cover members 1, 1b have the same shape, grooves of different sizes and shapes may also be distributed along the lower periphery of the cover members 1, 1b. The same applies to the cavities 20 and / or inserts 40, i.e., the cavities 20 and / or inserts 40 of the cover members 1, 1b of the present invention may have different sizes and shapes (e.g., in individual areas of the broken surface 5).

Claims

1. A cover-shaped component (1, 1b) for a rotary or cone crusher, The crusher includes: The frame includes a bowl-shaped component (2) serving as a first crushing shell; and a crusher head includes a cover-shaped component (1, 1b) serving as a second crushing shell, wherein a crushing gap is defined between the cover-shaped component (1, 1b) and the bowl-shaped component (2). The cover-shaped member (1, 1b) includes a central axis (Z), a first end (3) and a second end (4) along the central axis (Z), and an outer peripheral surface defined by a generatrix rotating about the central axis (Z). The outer peripheral surface constitutes the breakable surface (5) of the cover-shaped member (1, 1b), and the outer diameter of the cover-shaped member (1, 1b) at the second end (4) is larger than the outer diameter at the first end (3). One or more grooves (10) are formed in the broken surface (5) at the second end (4) of the cover-shaped member (1, 1b), and One or more cavities (20) for receiving wear-resistant inserts (40) are formed in the broken surface (5), and / or one or more wear-resistant inserts (40) are attached to or incorporated into the broken surface (5).

2. The cover-shaped component (1, 1b) for a rotary or cone crusher according to claim 1, wherein, The one or more grooves (10) extend generally along the broken surface (5) in a direction from the second end (4) of the cover (1, 1b) toward the first end (3).

3. The cover-shaped component (1, 1b) for a rotary or cone crusher according to claim 1 or 2, wherein, The one or more grooves (10) are spaced apart in the circumferential direction of the broken surface (5) at regular intervals.

4. The cover-shaped component (1, 1b) for a rotary or cone crusher according to any one of claims 1 to 3, wherein, The one or more grooves (10) are open at the second end (4) of the cover (1, 1b).

5. The cover-shaped component (1, 1b) for a rotary or cone crusher according to any one of the preceding claims, wherein, The one or more grooves (10) extend substantially along the corresponding generatrix of the broken surface (5) or substantially parallel to the central axis (Z) of the cover (1, 1b).

6. The cover-shaped component (1, 1b) for a rotary or cone crusher according to any one of the preceding claims, wherein, The one or more grooves (10) have a C-shaped, U-shaped or V-shaped shape in a cross section perpendicular to the central axis (Z), especially a V-shaped shape with a rounded bottom.

7. The cover-shaped component (1, 1b) for a rotary or cone crusher according to any one of the preceding claims, wherein, The width and / or depth of each of the one or more grooves (10) increases toward the second end (4) of the cover (1, 1b).

8. The cover-shaped component (1, 1b) for a rotary or cone crusher according to any one of the preceding claims, wherein, Viewed along the outer periphery of the cover-shaped member (1, 1b), the one or more cavities (20) and / or wear-resistant inserts (40) are formed in the broken surface (5) between the one or more grooves (10).

9. The cover-shaped component (1, 1b) for a rotary or cone crusher according to any one of the preceding claims, wherein, One or more cavities (20) and / or wear-resistant inserts (40) are formed in the broken surface (5) in at least one row, particularly in a circumferential row in a plane perpendicular to the central axis (Z).

10. The cover-shaped component (1, 1b) for a rotary or cone crusher according to claim 9, wherein, One or more cavities (20) and / or inserts (40) in one row are offset relative to one or more cavities (20) and / or inserts (40) in another row in the circumferential direction of the cover (1, 1b).

11. The cover-shaped component (1, 1b) for a rotary or cone crusher according to claim 9 or 10, wherein, The spacing between the cavities (20) and / or inserts (40) in one row is wider than the spacing between the cavities (20) and / or inserts (40) in another row, particularly closer to the second end (4) of the cover (1, 1b).

12. The cover-shaped component (1, 1b) for a rotary or cone crusher according to any one of the preceding claims, wherein, One or more cavities (20) and / or inserts (40) are formed in the broken surface (5) in at least one column extending from the second end (4) of the cover (1, 1b) toward the first end (3) and particularly along a generatrix of the cover (1, 1b).

13. The cover-shaped component (1, 1b) for a rotary or cone crusher according to claim 12, wherein, One or more cavities (20) and / or inserts (40) in one column are offset relative to one or more cavities (20) and / or inserts (40) in another column along a generatrix of the cover (1, 1b).

14. The cover-shaped component (1, 1b) for a rotary or cone crusher according to claim 12 or 13, wherein, The spacing between adjacent cavities (20) in a row becomes wider toward the first end (3) of the cover (1, 1b).

15. The cover-shaped component (1, 1b) for a rotary or cone crusher according to any one of the preceding claims, wherein, The broken surface (5) includes a high-wear section located in the region between the first and second ends of the cover-shaped member (1, 1b), in which the cavity (20) and / or insert (40) are formed at a density higher than that in at least one other section of the broken surface (5).

16. The cover-shaped component (1, 1b) for a rotary or cone crusher according to any one of the preceding claims, wherein, There is no cavity (20) and / or insert (40) in the area between the groove (10) and the first end (3) of the cover (1, 1b) along the broken surface (5), and / or there is no cavity (20) and / or insert (40) in the area between the groove (10) and the second end (4) of the cover (1, 1b) along the broken surface (5).

17. The cover-shaped component (1, 1b) for a rotary or cone crusher according to any one of the preceding claims, wherein, One or more cavities (20) and / or inserts (40) are aligned with each of the one or more grooves (10) along a corresponding generatrix of the cover (1, 1b).

18. A cover-shaped component for a rotary or cone crusher according to any one of the preceding claims, wherein, The cover-shaped member is configured as a lower cover-shaped member (1b) for connection with the upper cover-shaped member (1a), the upper cover-shaped member (1a) and the lower cover-shaped member (1b) being aligned along the central axis (Z).

19. A cover-shaped component for a rotary or cone crusher, wherein, The cover (1) includes a lower cover (1b) and an upper cover (1a), the lower cover and the upper cover being configured to be connected and aligned along a central axis (Z), wherein the lower cover (1b) is a cover according to any one of the preceding claims.

20. A rotary or cone crusher (100, 200), comprising: The frame is provided with a bowl-shaped member (2) serving as a first crushing shell; and the crusher head is provided with a cover-shaped member (1, 1b) serving as a second crushing shell, wherein a crushing gap is defined between the cover-shaped member (1, 1b) and the bowl-shaped member (2), and wherein the cover-shaped member (1, 1b) is a cover-shaped member according to any one of the preceding claims.

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