Wear-resistant lining plate of cold-inlaid hard alloy jaw crusher

Abstract

A wear-resistant lining plate of a cold-inlaid hard alloy jaw crusher comprises a lining plate base body, a plurality of grooves and bosses are arranged in the length direction of the lining plate base body at intervals, and inserting grooves and dovetail grooves are formed in the two ends of each boss. The wear-resistant lining plate has the positive effects that the inserting groove and the dovetail groove which are communicated with each other are formed in the lining plate base body, the hard alloy used for extruding materials is mounted in the dovetail groove in a matching manner, and the hard alloy is positioned through the alloy extrusion block in the inserting groove, so that the wear-resistant lining plate has the advantages that the wear-resistant lining plate is simple in structure and convenient to use, and the service life of the wear-resistant lining plate is prolonged. According to the lining plate, non-casting abrasion part installation on the lining plate is achieved, hard alloy serving as an easily-damaged part is more beneficial to disassembly, assembly and replacement by adopting the positioning installation mode, the whole lining plate does not need to be replaced, the labor intensity of workers is reduced, and the maintenance difficulty and cost are reduced; and the working condition requirements of high strength, high operation rate, long service life and low cost in the crushing industry can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of crusher lining plate devices, in particular to a cold-mounted hard alloy jaw crusher wear-resistant lining plate. Background Art

[0002] The jaw crusher is a crushing chamber composed of two jaw plates, a moving jaw and a static jaw, which simulates the movement of the two jaws of animals to complete the material crushing operation. It is widely used in the crushing of various ores and bulk materials in the mining, smelting, building materials, roads, railways, water conservancy and chemical industries. At present, the conventional jaw crusher lining is mostly an integrated structure, cast from high manganese steel and other alloy materials in the molten state. When the jaw crusher is working, the lining will squeeze, impact, shear and other actions with the material. These actions will damage the wear-resistant lining while crushing the material. In order to ensure the crushing effect, the lining needs to be replaced as a whole. Due to the heavy weight of the lining itself, the replacement process also requires a lot of manpower and material resources, resulting in a significant increase in the maintenance cost of each replacement, which cannot meet the high-intensity, high-operating rate, high-life and low-cost working conditions of the crushing industry. Utility Model Content

[0003] The utility model aims to provide a cold-mounted carbide jaw crusher wear-resistant lining plate, wherein a carbide that is easy to disassemble and replace is arranged on the lining plate base, and the overall lining plate does not need to be replaced, thereby solving the problems in the prior art.

[0004] The utility model solves the technical problem by adopting the following technical scheme: a cold-inserted carbide jaw crusher wear-resistant lining comprises a lining substrate, a plurality of grooves and bosses arranged at intervals are provided in the length direction of the lining substrate, both ends of each boss are provided with an insertion groove and a dovetail groove, the insertion groove and the dovetail groove are connected and the width of the insertion groove is greater than the width of the dovetail groove, a plurality of first carbides arranged side by side are installed in the dovetail groove, the first carbides can enter the dovetail groove through the insertion groove, a first alloy extrusion block is installed in the insertion groove, and the first alloy extrusion block can lock each first carbide in the dovetail groove. The first alloy extrusion block is composed of a second alloy extrusion block and a third alloy extrusion block, wherein the second alloy extrusion block is a rectangular block and is completely fitted at the bottom of the insertion slot, the three edges of the upper end face of the second alloy extrusion block are welded to the inner surface of the insertion slot, the third alloy extrusion block includes a rectangular block that matches the insertion slot, a square block is arranged at the bottom of the rectangular block, the lower surface of the square block is located between the three welds on the upper end face of the second alloy extrusion block, the three edges of the upper rectangular block end face of the third alloy extrusion block are welded to the inner surface of the insertion slot, and the side faces of the second alloy extrusion block and the third alloy extrusion block are in contact with the first cemented carbide. A plurality of first cemented carbides and second cemented carbides arranged at intervals are fitted in the dovetail groove. The first cemented carbide is provided with threaded holes, and a connecting screw is fitted in all the threaded holes of the first cemented carbide, the connecting screw is completely located in the first cemented carbide, and an inner hexagonal hole is provided on the end face of the connecting screw close to the first alloy extrusion block. The upper parts of both sides of the lining substrate in the length direction are provided with first inclined surfaces, and through grooves are opened on the first inclined surfaces. The lower parts of both sides of the lining substrate in the length direction are provided with second inclined surfaces, and the length between the two second inclined surfaces is smaller than the length between the two first inclined surfaces.

[0005] The positive effect of the utility model is that a cold-inserted carbide jaw crusher wear-resistant lining plate described in the utility model is provided with a connected insertion groove and a dovetail groove on the lining plate base, and the dovetail groove is used to install the carbide for extruding materials, and the carbide is positioned by the alloy extrusion block in the insertion groove, so that the non-casting installation of wear parts on the lining plate is realized. The carbide as a wearing part adopts the above-mentioned positioning installation method, which is more conducive to disassembly and replacement, and there is no need to replace the entire lining plate. It not only reduces the labor intensity of the staff, reduces the difficulty and cost of maintenance, but also meets the working conditions requirements of high strength, high operating rate, high life and low cost in the crushing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0007] Figure 2 It is the front view of the utility model;

[0008] Figure 3 yes Figure 2 Middle AA section view;

[0009] Figure 4 yes Figure 2 Middle BB section view;

[0010] Figure 5 yes Figure 2 The CC section view in the middle is rotated 90 degrees counterclockwise;

[0011] Figure 6 It is a structural schematic diagram of a second alloy extrusion block and a third alloy extrusion block arranged in an insertion slot;

[0012] Figure 7 is an axonometric view of the second alloy extrusion block and the third alloy extrusion block welded in the insertion slot;

[0013] Figure 8 It is a schematic diagram of the structure in which the first hard alloy and the second hard alloy are arranged at intervals in the dovetail groove;

[0014] Fig. 9 is a schematic diagram of the structure of the connecting screw rod installed between the first hard alloys;

[0015] Fig.10 yes Fig. 9 A schematic diagram of the structure in which the second alloy extrusion block and the third alloy extrusion block are arranged. DETAILED DESCRIPTION

[0016] The utility model discloses a cold-mounted carbide jaw crusher wear-resistant lining plate, such as Figure 1-5 As shown, it comprises a lining plate base 1, a plurality of grooves 2 and bosses 3 arranged at intervals are provided in the length direction of the lining plate base 1, and both ends of each boss 3 are provided with an insertion groove 4 and a dovetail groove 5.

[0017] The insertion slot 4 and the dovetail slot 5 are connected and the width of the insertion slot 4 is greater than the width of the dovetail slot 5. A plurality of first hard alloys 6 arranged side by side are installed in the dovetail slot 5. The first hard alloys 6 can enter the dovetail slot 5 through the insertion slot 4. A first alloy extrusion block 7 is installed in the insertion slot 4. The first alloy extrusion block 7 can lock each first hard alloy 6 in the dovetail slot 5.

[0018] The dovetail groove 5 is narrow at the top and wide at the bottom, and can limit the first hard alloy 6 in the liner substrate 1. The first hard alloy 6 is inserted from the insertion groove 4 with the same width at the top and bottom, and is moved horizontally to the dovetail groove 5 for installation, and then the insertion groove 4 is blocked by the first alloy extrusion block 7 to position and lock the first hard alloy 6 in the dovetail groove 5. The first hard alloy 6 is the force-bearing part during the liner extrusion operation, and the first hard alloy 6 needs to extend out of the dovetail groove 5 by a certain height. After the part of the first hard alloy 6 extending out of the dovetail groove 5 is worn, the first hard alloy 6 as a wearing part needs to be replaced.

[0019] The replacement of the first hard alloy 6 is relatively easy to achieve. The first alloy extrusion block 7 is taken out from the insertion slot 4. The worn first hard alloy 6 is no longer restricted by the positioning and can be taken out from the insertion slot 4. The unused first hard alloy 6 can be subsequently installed into the dovetail slot 5. The positioning and installation of the first alloy extrusion block 7 in the insertion slot 4 can be achieved by welding.

[0020] When the first alloy extrusion block 7 is welded and fixed in the insertion slot 4 as a whole to limit the position of the first cemented carbide 6, the staff can only weld and fix the top position of the first alloy extrusion block 7 and the insertion slot 4, which has poor stability. If it falls off, the first cemented carbide 6 cannot be limited. In order to realize multiple welding and fixing surfaces between the alloy extrusion block and the insertion slot 4, the first alloy extrusion block 7 is composed of a second alloy extrusion block 8 and a third alloy extrusion block 9.

[0021] like Figure 6 and Figure 7 As shown, the second alloy extrusion block 8 is a rectangular block and is completely fitted at the bottom of the insertion slot 4. The three edges of the upper end face of the second alloy extrusion block 8 are welded to the inner surface of the insertion slot 4. The third alloy extrusion block 9 includes a rectangular block that matches the insertion slot 4. A square block is arranged at the bottom of the rectangular block. The lower surface of the square block is located between the three welds on the upper end face of the second alloy extrusion block 8 to avoid the welds. The three edges of the upper rectangular block end face of the third alloy extrusion block 9 are welded to the inner surface of the insertion slot 4. The side faces of the second alloy extrusion block 8 and the third alloy extrusion block 9 are in contact with the first cemented carbide 6 to jointly realize the positioning restriction of the first cemented carbide 6, wherein the third alloy extrusion block 9 can also realize the limiting of the second alloy extrusion block 8.

[0022] The side surface of the third alloy extrusion block 9 in contact with the first cemented carbide 6 is in an "inverted T-shape", and the side surface of the third alloy extrusion block 9 is in a right-angle fold shape. The two side surfaces of the square block and the front side surface close to the insertion slot 4 leave space for the protruding weld of the second alloy extrusion block 8. At the same time, the upper end surface of the third alloy extrusion block 9 is also welded and fixed to the insertion slot 4. Compared with a single alloy extrusion block, the number of welds is increased, and the installation stability of the alloy extrusion block in the insertion slot 4 is also improved. If the third alloy extrusion block 9 on the upper side falls off, the second alloy extrusion block 8 at the bottom position can still achieve the necessary limiting effect on the first cemented carbide 6.

[0023] Further, in order to improve the wear resistance of the cemented carbide in the dovetail groove 5, as Figure 8 As shown, a plurality of first cemented carbides 6 and second cemented carbides 10 arranged at intervals are installed in the dovetail groove 5 .

[0024] Each first hard alloy 6 is installed side by side in the dovetail groove 5. If one of the first hard alloys 6 is damaged or broken during the operation of the liner, excess space will appear in the dovetail groove 5, and the remaining first hard alloys 6 will move in the dovetail groove 5, reducing the working strength and affecting the normal crushing operation.

[0025] To solve the above problems, Fig. 9 As shown, the first hard alloy 6 is provided with a threaded hole 11, and a connecting screw 12 is installed in the threaded hole 11 of all the first hard alloys 6. The connecting screw 12 is completely located in the first hard alloy 6, and an inner hexagonal hole 13 is provided on the end face of the connecting screw 12 close to the first alloy extrusion block 7. The connecting screw 12 can realize the fixed connection of all the first hard alloys 6. Even if one of the first hard alloys 6 is damaged or broken, the remaining first hard alloys 6 will not move in the dovetail groove 5, thereby maintaining the strength of the component during operation. At the same time, the opening of the inner hexagonal hole 13 also facilitates the disassembly and assembly of the connecting screw 12. During installation, the connecting screw 12 can be placed in the dovetail groove 5 first, and then each first hard alloy 6 can be placed in turn. By rotating the connecting screw 12, the first hard alloy 6 can be moved into place in the dovetail groove 5.

[0026] Furthermore, the upper part of both sides of the lining substrate 1 in the length direction is provided with a first inclined surface 14, and a through groove 15 is opened on the first inclined surface 14. The lower part of both sides of the lining substrate 1 in the length direction is provided with a second inclined surface 16, and the length between the second inclined surfaces 16 on both sides is smaller than the length between the first inclined surfaces 14 on both sides.

[0027] The dovetail groove 5 structure can ensure that the cemented carbide is firmly embedded and does not fall out during use. The cemented carbide can be made of high-hardness and high-wear-resistant materials using a special process, which greatly improves the service life, increases the operating output, reduces production costs, has a high cost performance, and fills the market gap. It can give full play to the excellent wear resistance of cemented carbide, improve the service life of the liner, has a very high comprehensive cost performance, and has broad market prospects.

[0028] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all known technologies.

Claims

1. A cold-mounted carbide jaw crusher wear-resistant lining, characterized by: The invention comprises a lining plate base (1), a plurality of grooves (2) and bosses (3) arranged at intervals in the length direction of the lining plate base (1), an insertion groove (4) and a dovetail groove (5) are provided at both ends of each boss (3), the insertion groove (4) and the dovetail groove (5) are connected and the width of the insertion groove (4) is greater than the width of the dovetail groove (5), a plurality of first hard alloys (6) arranged side by side are installed in the dovetail groove (5), the first hard alloys (6) can enter the dovetail groove (5) through the insertion groove (4), a first alloy extrusion block (7) is installed in the insertion groove (4), and the first alloy extrusion block (7) can lock each first hard alloy (6) in the dovetail groove (5).

2. The cold-mounted carbide jaw crusher wear-resistant lining according to claim 1, characterized in that: The first alloy extrusion block (7) is composed of a second alloy extrusion block (8) and a third alloy extrusion block (9), wherein the second alloy extrusion block (8) is a rectangular block and is completely matched and located at the bottom of the insertion slot (4), and the three edges of the upper end surface of the second alloy extrusion block (8) are welded to the inner surface of the insertion slot (4). The third alloy extrusion block (9) includes a rectangular block that matches the insertion slot (4), and a square block is arranged at the bottom of the rectangular block. The lower surface of the square block is located between the three welds on the upper end surface of the second alloy extrusion block (8). The three edges of the upper rectangular block end surface of the third alloy extrusion block (9) are welded to the inner surface of the insertion slot (4), and the side surfaces of the second alloy extrusion block (8) and the third alloy extrusion block (9) are in contact with the first hard alloy (6).

3. The cold-mounted carbide jaw crusher wear-resistant lining according to claim 1, characterized in that: A plurality of first hard alloys (6) and second hard alloys (10) arranged at intervals are mounted in the dovetail groove (5).

4. The cold-mounted carbide jaw crusher wear-resistant lining according to claim 1, characterized in that: The first hard alloy (6) is provided with a threaded hole (11), and a connecting screw (12) is installed in the threaded hole (11) of all the first hard alloys (6). The connecting screw (12) is completely located in the first hard alloy (6), and an inner hexagonal hole (13) is provided on the end surface of the connecting screw (12) close to the first alloy extrusion block (7).

5. The cold-mounted carbide jaw crusher wear-resistant lining according to claim 1, characterized in that: The upper parts of both sides of the lining plate base (1) in the length direction are provided with first inclined surfaces (14), and the first inclined surfaces (14) are provided with through grooves (15). The lower parts of both sides of the lining plate base (1) in the length direction are provided with second inclined surfaces (16), and the length between the second inclined surfaces (16) on the two sides is smaller than the length between the first inclined surfaces (14) on the two sides.

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