Crusher

Abstract

The utility model discloses a crusher which comprises a movable cone and a wear-resistant lining plate, the wear-resistant lining plate is connected to the surface of the movable cone, the wear-resistant lining plate is formed by splicing a plurality of magnetic lining plate units, and a plurality of magnetic switches are arranged on the movable cone. The magnetic conductive lining plate units are desorbed from the surface of the movable cone or magnetically attracted to the surface of the movable cone by turning on or turning off the magnetic switches. When the wear-resistant lining plate is locally damaged and needs to be replaced, the locally damaged magnetic-conductive lining plate units are desorbed through magnetic force for replacement, and the whole lining plate does not need to be replaced, so that the replacement cost of key parts of the crusher is reduced, and the speed of replacing quick-wear parts is increased; the problems that a traditional wear-resistant lining plate is high in replacement frequency, high in replacement cost, low in replacement speed and low in production efficiency are solved.

Description

Technical Field

[0001] This utility model relates to the field of crusher equipment technology, and in particular to a crusher. Background Technology

[0002] Crushers are core equipment commonly used in ore mining, sand and gravel processing, and building material production. Their main function is to crush large materials into smaller pieces of a specified size using mechanical force. Whether in mining, building material production, or other industrial sectors, crushers undertake heavy-duty and high-intensity operations. Therefore, various components of the crusher, especially those in direct contact with the material being crushed, such as the liners, are subjected to harsh working conditions of high wear and high impact for extended periods. Wear-resistant liners, as a crucial protective structure in crushers, directly affect the equipment's lifespan and operating efficiency.

[0003] Traditional crusher liners often employ a one-piece cast iron structure with a simple curved surface, secured by bolts or welding. For example, Chinese Patent Publication No. CN 210875478 U discloses a wear-resistant liner for a mining crusher, comprising a liner with several inverted pyramidal grooves on its crushing surface; trapezoidal teeth for crushing materials formed between adjacent inverted pyramidal grooves; a through-hole for external bolts to connect to the upper moving jaw plate of the crusher; the through-hole located within the inverted pyramidal grooves; and multiple reinforcing ribs located within the inverted pyramidal grooves and around the through-hole, flush with the end faces of the inverted pyramidal grooves. While this bolt-fixed liner solution provides some initial wear resistance, it is prone to severe localized wear under long-term high-intensity, high-impact operation, leading to frequent liner replacements, increased equipment maintenance costs, and impacts on production continuity and overall economic efficiency. Therefore, the technical problem of severe localized liner wear resulting in increased replacement costs urgently needs improvement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a crusher with low replacement cost and fast replacement speed of wear-resistant liners.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A crusher includes a moving cone and a wear-resistant liner. The wear-resistant liner is connected to the surface of the moving cone and is assembled from multiple magnetic liner units. The moving cone is provided with multiple magnetic switches. By turning the magnetic switches on or off, the magnetic liner units are desorbed from or magnetically attracted to the surface of the moving cone.

[0007] As a further improvement to the above technical solution:

[0008] The magnetic switch includes a magnetic shell, a magnetic post, and a non-magnetic layer. The magnetic shell has a receiving hole for placing the magnetic post along the axial direction of the side of the moving cone. The magnetic post is rotatable relative to the receiving hole, and the two poles of the magnetic post are respectively arranged relative to the inner wall of the receiving hole. The two non-magnetic layers are symmetrically arranged with respect to the central axis of the receiving hole. One non-magnetic layer is arranged in the direction closer to the magnetic liner unit, and the other non-magnetic layer is arranged in the direction away from the magnetic liner unit.

[0009] The length of the non-magnetic layer is not less than the length of the magnet column.

[0010] The magnetic switch also includes a handle, which is connected to one end of the magnet post for rotating the magnet post.

[0011] The magnet post has a groove at one end and a protrusion at one end, and the protrusion and the groove are matched.

[0012] The groove is either straight or cross-shaped.

[0013] The magnetic shell is made of cast iron, and the non-magnetic layer is made of copper.

[0014] The shape of the magnetically conductive liner unit conforms to the side shape of the moving cone. The projection shape of the magnetically conductive liner unit on the plane passing through the central axis of the moving cone is an isosceles right triangle. The central axis of the magnet column is parallel to the central perpendicular line on the long side of the isosceles right triangle.

[0015] The crusher also includes an upper frame and a lower frame, with the moving cone located between the upper frame and the lower frame.

[0016] The moving cone includes an upper fixed part, a lower fixed part, and a cone part. The upper end of the cone part is connected to the upper frame through the upper fixed part, and the lower end is connected to the lower frame through the lower fixed part. The wear-resistant liner is provided on the cone part.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] This invention relates to a crusher comprising a wear-resistant liner assembled from multiple magnetically conductive liner units. Multiple magnetic switches are installed on the moving cone, allowing the magnetically conductive liner units to be either desorbed from or magnetically attracted to the surface of the moving cone by opening or closing these switches. When a part of the wear-resistant liner is damaged and needs replacement, the damaged liner unit is magnetically desorbed for replacement, eliminating the need to replace the entire liner. This reduces the replacement cost of critical crusher components and increases the speed of replacing vulnerable parts. It solves the problems of high replacement frequency, high cost, slow speed, and reduced production efficiency associated with traditional wear-resistant liners, bringing significant economic benefits to users. Attached Figure Description

[0019] Figure 1This is a structural schematic diagram of the crusher of this utility model.

[0020] Figure 2 This is an exploded structural diagram of the crusher of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the moving cone of this utility model.

[0022] Figure 4 yes Figure 3 Sectional view at point A in the middle.

[0023] Figure 5 This is a diagram showing the state of the magnet column when the magnetic switch is closed.

[0024] Figure 6 This is a diagram showing the state of the magnet column when the magnetic switch is turned on.

[0025] The labels in the diagram represent:

[0026] 1. Moving cone; 11. Upper fixed part; 12. Lower fixed part; 13. Conical part; 2. Wear-resistant liner; 21. Magnetic liner unit; 3. Magnetic switch; 311. Magnetic shell; 312. Magnetic column; 313. Non-magnetic layer; 314. Handle; 5. Upper frame; 6. Lower frame. Specifics; Implementation methods

[0028] The present invention will be further described in detail below. Unless otherwise specified, the instruments or materials used in the present invention are commercially available.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] like Figures 2 to 6As shown, the crusher in this embodiment includes a moving cone 1 and a wear-resistant liner 2. The wear-resistant liner 2 is connected to the surface of the moving cone 1 and is assembled from multiple magnetic liner units 21. Multiple magnetic switches 3 are provided on the moving cone 1. By opening or closing the magnetic switches 3, the magnetic liner units 21 are either de-attracted from or magnetically attracted to the surface of the moving cone 1. When the wear-resistant liner 2 is partially damaged and needs replacement, it is not necessary to replace the entire liner. The partially damaged magnetic liner unit 21 is replaced by magnetic de-attraction, reducing the replacement cost of key components of the crusher and increasing the speed of replacing vulnerable parts. This solves the problems of high replacement frequency, high replacement cost, slow replacement speed, and reduced production efficiency associated with traditional wear-resistant liners 2, and brings significant economic benefits to users.

[0032] like Figure 4 , Figure 5 , Figure 6 As shown, in this embodiment, the magnetic switch 3 includes a magnetic shell 311, a magnetic post 312, and a non-magnetic layer 313. The magnetic shell 311 has a receiving hole for placing the magnetic post 312 along the axial direction of the side of the moving cone 1. The magnetic post 312 is rotatable relative to the receiving hole, and the two poles of the magnetic post 312 are respectively arranged relative to the inner wall of the receiving hole. The two non-magnetic layers 313 are symmetrically arranged with respect to the central axis of the receiving hole. One non-magnetic layer 313 is arranged in the direction close to the magnetic liner unit 21, and the other non-magnetic layer 313 is arranged in the direction away from the magnetic liner unit 21. In this invention, when the two poles of the magnet post 312 are respectively set towards the non-magnetic layer 313, the magnetic lines of force only flow from the inside of the magnetic shell 311 to the outside of the magnetic switch 3. At this time, the magnetic shell 311 outside the magnetic switch 3 has no magnetic force, the magnetic switch 3 is closed, and the wear-resistant liner 2 that needs to be replaced can be removed. When the two poles of the magnet post 312 are respectively set away from the non-magnetic layer 313, the magnetic lines of force can flow from the outside of the cast iron to the outside of the magnetic shell 311. The magnetic switch 3 has magnetic force, the magnetic switch 3 is opened, and the wear-resistant liner 2 made of magnetic material can be attracted.

[0033] In this embodiment, the magnetic shell 311, the magnetic column 312, and the non-magnetic layer 313 are embedded in the surface of the moving cone 1 as part of the moving cone 1. In other embodiments, the magnetic switch 3 is magnetically connected to the moving cone 1 as a separate part.

[0034] like Figure 3 As shown, in this embodiment, the length of the non-magnetic layer 313 is not less than the length of the magnet post 312.

[0035] like Figure 3 As shown, in this embodiment, the magnetic switch 3 also includes a handle 314, which is connected to one end of the magnet post 312 for rotating the magnet post 312.

[0036] The magnet post 312 has a groove at one end, and the handle 314 has a protrusion at one end, with the protrusion and groove matching. In this embodiment, the groove is either straight or cross-shaped.

[0037] In this embodiment, the magnetic shell 311 is a cast iron shell, the non-magnetic layer 313 is a copper layer, and the wear-resistant liner 2 is a cast iron liner.

[0038] like Figure 3 As shown, in this embodiment, the shape of the magnetically conductive liner unit 21 conforms to the side shape of the moving cone 1. The projection shape of the magnetically conductive liner unit 21 onto the plane of the central axis of the moving cone 1 is an isosceles right triangle. The central axis of the magnet column 312 is parallel to the central perpendicular line on the long side of the isosceles right triangle. The multiple isosceles right triangles present a fish-scale structure, which solves the technical problem that ordinary square splicing blocks are prone to misalignment after splicing and installation, and avoids misalignment and movement of the unit blocks.

[0039] like Figure 3 , Figure 4 As shown, the wear-resistant liner 2 has multiple grooves spaced apart on its surface. The sides of the grooves are arc-shaped and the bottom is flat. When the material is crushed, it can be more evenly distributed on the surface of the liner, avoiding concentrated wear.

[0040] like Figure 1 and Figure 2 As shown, the crusher also includes an upper frame 5 and a lower frame 6, with the moving cone 1 located between the upper frame 5 and the lower frame 6.

[0041] like Figure 3 As shown, in this embodiment, the moving cone 1 includes an upper fixing part 11, a lower fixing part 12 and a cone part 13. The upper end of the cone part 13 is connected to the upper frame 5 through the upper fixing part 11, and the lower end is connected to the lower frame 6 through the lower fixing part 12. The wear-resistant liner 2 is disposed on the cone part 13.

[0042] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A crusher comprising a moving cone (1) and a wear-resistant liner (2), the wear-resistant liner (2) being connected to the surface of the moving cone (1), characterized in that: The wear-resistant liner (2) is assembled from multiple magnetic liner units (21). The moving cone (1) is provided with multiple magnetic switches (3). By opening or closing the magnetic switches (3), the magnetic liner units (21) are desorbed from the surface of the moving cone (1) or magnetically attracted to the surface of the moving cone (1).

2. The crusher according to claim 1, characterized in that: The magnetic switch (3) includes a magnetic shell (311), a magnetic post (312), and a non-magnetic layer (313). The magnetic shell (311) has a receiving hole for placing the magnetic post (312) along the axial direction of the side of the moving cone (1). The magnetic post (312) is rotatable relative to the receiving hole, and the two poles of the magnetic post (312) are respectively arranged relative to the inner wall of the receiving hole. The two non-magnetic layers (313) are symmetrically arranged relative to the central axis of the receiving hole. One non-magnetic layer (313) is arranged in the direction close to the magnetic liner unit (21), and the other non-magnetic layer (313) is arranged in the direction away from the magnetic liner unit (21).

3. The crusher according to claim 2, characterized in that: The length of the non-magnetic layer (313) is not less than the length of the magnet post (312).

4. The crusher according to claim 2, characterized in that: The magnetic switch (3) also includes a handle (314), which is connected to one end of the magnet post (312) for rotating the magnet post (312).

5. The crusher according to claim 4, characterized in that: The magnet post (312) has a groove at one end, and the handle (314) has a protrusion at one end, with the protrusion and the groove matching.

6. The crusher according to claim 5, characterized in that: The groove is either straight or cross-shaped.

7. The crusher according to claim 2, characterized in that: The magnetic shell (311) is a cast iron shell, and the non-magnetic layer (313) is a copper layer.

8. The crusher according to any one of claims 2 to 7, characterized in that: The shape of the magnetic liner unit (21) fits the side shape of the moving cone (1). The projection shape of the magnetic liner unit (21) on the plane passing through the central axis of the moving cone (1) is an isosceles right triangle. The central axis of the magnet column (312) is parallel to the central perpendicular line on the long side of the isosceles right triangle.

9. The crusher according to any one of claims 2 to 7, characterized in that: The crusher also includes an upper frame (5) and a lower frame (6), with the moving cone (1) located between the upper frame (5) and the lower frame (6).

10. The crusher according to claim 9, characterized in that: The moving cone (1) includes an upper fixing part (11), a lower fixing part (12) and a cone part (13). The upper end of the cone part (13) is connected to the upper frame (5) through the upper fixing part (11), and the lower end is connected to the lower frame (6) through the lower fixing part (12). The wear-resistant liner (2) is provided on the cone part (13).

Images