A mine wear-resistant lining plate

Abstract

The utility model discloses a kind of mine wear-resistant lining plate, including bottom plate and several wear-resistant lining strip, wear-resistant lining strip is closely arrayed along ore flow direction, section is isosceles triangle to reduce the contact area with ore;Lining strip two ends are provided with mirror image connecting part, and continuous wear surface is formed by inclined countersunk through hole and threaded hole bolt connection;The connecting column of lining strip bottom is cooperated with the connecting hole on the bottom plate of locking plate with chamfer to realize independent locking, without rotation, it can be disassembled to realize single lining strip partial replacement, without affecting the stability of adjacent lining strip, reduce maintenance cost and downtime, suitable for mine chute, chute and other equipment.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, and in particular to a wear-resistant liner for mining. Background Technology

[0002] During the ore transfer process of gravity sliding equipment in mines (such as chutes, sluices, ore discharge hoppers, etc.), the high-speed impact and friction between the ore and the inner surface of the equipment will cause severe wear. Therefore, wear-resistant liners need to be laid to extend the service life of the equipment. Existing mine wear-resistant liners mostly adopt an integral structure or a large-block splicing structure, and their materials are usually high manganese steel, ceramics or composite wear-resistant materials.

[0003] However, in actual use, the wear of the liner plates is concentrated in localized stress areas (such as chute corners and hopper outlets), while the wear in other areas is relatively minor. When a localized liner plate is damaged, due to the limitations of the integral, non-separable structure and the connection method of the large-piece splicing structure, the entire set of liners must be removed and replaced, resulting in a large workload for maintenance, long downtime, and significantly increasing the maintenance costs and efficiency losses in mine production. Therefore, there is an urgent need for a mine wear-resistant liner plate structure that allows for localized replacement and convenient maintenance. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a wear-resistant liner for mining, thereby solving the problems mentioned in the background art.

[0005] To achieve the above technical objectives, the present invention provides a wear-resistant liner for mining, comprising: a base plate, wherein a plurality of wear-resistant liner strips are arranged equidistantly on the base plate, the bottom center of each wear-resistant liner strip is provided with a connecting post, the length of the connecting post is less than the thickness of the base plate, and a locking plate is provided at its lower end, the width and length of the locking plate being less than and greater than the diameter of the connecting post, respectively, the side edge of the locking plate is chamfered, and the distance from the lower edge of the chamfer to the bottom of the wear-resistant liner strip is greater than the thickness of the base plate, and the base plate is provided with connecting holes that cooperate with the connecting post and the locking plate.

[0006] Furthermore, the cross-section of the wear-resistant liner is an isosceles triangle, with right-angled triangle connecting parts of equal height at both ends. The two connecting parts are of equal length and are mirror images of the axis of the wear-resistant liner. One end of the wear-resistant liner and its connecting part are provided with countersunk through holes, and the other end and its connecting part are provided with threaded holes that mate with the countersunk through holes.

[0007] Furthermore, the countersunk through hole and the threaded hole that mates with it extend from the lower part of the wear-resistant liner to the upper inner side.

[0008] Furthermore, when the locking plate is aligned with the connecting hole, the distance between the end of the connecting post and its adjacent connecting post is greater than zero.

[0009] Furthermore, the base plate has connecting waist holes on both sides.

[0010] Compared with the prior art, the beneficial effects of this utility model include: 1. This utility model adopts a wear-resistant liner design with an independent locking structure. When a single liner is worn, it can be directly replaced without disassembling the base plate or adjacent intact liners. Moreover, the stability of the front and rear liners is not affected after replacement, which greatly shortens the downtime maintenance time and reduces the maintenance cost and efficiency loss of mining production.

[0011] 2. This utility model uses wear-resistant lining strips arranged along the ore flow direction with an isosceles triangle cross section, where only the top end contacts the ore to reduce frictional resistance and improve the smoothness of ore flow; the bolt holes adopt a bottom-to-top inclined design, which can not only avoid the bolts from contacting and wearing with the ore, but also prevent slag blockage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a wear-resistant liner for mining provided by this utility model; Figure 2 This is a schematic diagram of a wear-resistant lining strip for a mining wear-resistant lining plate provided by this utility model; Figure 3 This is a schematic diagram of the connection of wear-resistant lining strips for a mining wear-resistant lining plate provided by this utility model. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0014] As shown in Figures 1-3, this utility model discloses a wear-resistant liner for mining, comprising a base plate 1 and several wear-resistant liner strips 2. The base plate 1 is made of Q235 steel plate, and symmetrical connecting holes 102 are provided on both sides of its edge. Bolts passing through the connecting holes 102 can fix the base plate 1 to the inner wall of gravity sliding equipment such as chutes and chutes. The hole structure allows for ±5mm positional adjustments during installation to accommodate the installation reference errors of different equipment.

[0015] The wear-resistant lining strips 2 are arranged in a close array along the ore flow direction, and their cross-section is an isosceles triangle with a vertex angle of 30°-60°. When the ore slides along the lining plate, it only contacts the top of the wear-resistant lining strip 2, which significantly reduces the contact area with the ore, thereby reducing frictional resistance and improving the smoothness of flow. At the same time, the overall wear range of the lining strip is reduced because the contact point is concentrated at the top. The two ends of the wear-resistant lining strip 2 are integrally formed with right-angled triangular connecting parts 203. The height of the two connecting parts 203 is the same as that of the wear-resistant lining strip 2, and they are set in a mirror image with the axis of the wear-resistant lining strip 2, so that the connecting parts 203 of two adjacent wear-resistant lining strips 2 can be completely fitted and spliced.

[0016] One end of the wear-resistant liner 2 and its connecting part 203 are provided with a countersunk through hole 204, and the other end and its connecting part 203 are provided with a threaded hole 205 that mates with the countersunk through hole 204. Both the countersunk through hole 204 and the threaded hole 205 extend inclinedly from the lower part of the wear-resistant liner 2 to the upper inner side (inclination angle 15°-20°). This inclined structure design allows the bolt to be inserted into the countersunk through hole 204 from bottom to top and locked with the threaded hole 205. The bolt head is completely sunk into the countersunk hole, which not only avoids direct contact with the ore and wear, but also uses the inclination angle to prevent slag from falling into the bolt hole, preventing the bolt hole from being blocked and affecting disassembly and assembly. In practical applications, internal hex bolts are usually used for connection to facilitate installation.

[0017] A connecting post 201 is vertically fixed at the bottom center of the wear-resistant liner 2. The connecting post 201 is a cylinder, and its length is 2-3 mm less than the thickness of the base plate 1. That is, when the wear-resistant liner 2 is installed in place, the lower end of the connecting post 201 does not protrude from the bottom surface of the base plate 1. A locking plate 202 is welded to the lower end of the connecting post 201. The locking plate 202 is a rectangular steel plate, and its length and width are both smaller than the diameter of the connecting post 201. The two sides of the locking plate 202 are chamfered. The distance from the lower edge of the chamfer to the bottom of the wear-resistant liner 2 is 1-2 mm greater than the thickness of the base plate 1, so as to ensure that the locking plate 202 can pass vertically through the base plate 1.

[0018] The base plate 1 has a connecting hole 101 that mates with the connecting post 201 and the locking plate 202. The length of the connecting hole 101 is slightly greater than the length of the locking plate 202, and the width is slightly greater than the width of the locking plate 202, so that the locking plate 202 can pass directly through the connecting hole 101 in the vertical direction. When the locking plate 202 is aligned with the connecting hole 101, the distance between the end of the connecting post 201 and its adjacent connecting post 201 is greater than zero. After the locking plate 202 passes through the connecting hole 101, the wear-resistant liner 2 is rotated. At this time, the locking plate 202 and the connecting hole 101 are staggered. During this process, the connecting hole 101 slides between the connecting post 201 and the locking plate 202 along the chamfered bevel on both sides of the locking plate 202, thereby pressing the wear-resistant liner 2 onto the base plate 1. Then, it is connected to the adjacent wear-resistant liner 2 by bolts.

[0019] The installation process of this utility model is as follows: ①. Fix the base plate 1 to the inner wall of the slide equipment through the connecting waist hole 102; ②. Align the locking plate 202 of the wear-resistant liner 2 with the connecting hole 101 of the base plate 1, and pass the locking plate 202 through the connecting hole 101; ③. Rotate the wear-resistant liner 2 to make the locking plate 202 and the connecting hole 101 misalign and lock together. At this time, the bottom of the wear-resistant liner 2 is tightly attached to the base plate 1. ④. Adjacent wear-resistant lining strips 2 are connected by bolts through the countersunk through hole 204 and threaded hole 205 of the connecting part 203 to form a continuous wear-resistant surface.

[0020] When a wear-resistant liner 2 is worn and needs to be replaced, simply remove the connecting bolts of the corresponding liner and rotate it in the opposite direction to remove the old liner. Since each wear-resistant liner 2 is fixed by an independent connecting post 201, locking plate 202 and connecting hole 101, and adjacent liners are only connected by end bolts, after removing a single liner, the wear-resistant liners in front and behind are still stably fixed to the base plate 1 by their own locking structure, and the overall stability is not affected. After replacing the new liner, the installation steps can be repeated without disassembling the entire base plate 1 or adjacent intact liners, which significantly reduces maintenance costs and downtime.

[0021] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A wear-resistant liner for mining, comprising a base plate (1), wherein a plurality of wear-resistant liner strips (2) are arranged in an equidistant array on the base plate (1), characterized in that: A connecting post (201) is provided at the bottom center of the wear-resistant liner (2). The length of the connecting post (201) is less than the thickness of the base plate (1). A locking plate (202) is provided at its lower end. The width and length of the locking plate (202) are less than and greater than the diameter of the connecting post (201), respectively. The side edge of the locking plate (202) is chamfered, and the distance from the lower edge of the chamfer to the bottom of the wear-resistant liner (2) is greater than the thickness of the base plate (1). A connecting hole (101) is provided on the base plate (1) to cooperate with the connecting post (201) and the locking plate (202).

2. The wear-resistant liner for mining according to claim 1, characterized in that: The wear-resistant liner (2) has an isosceles triangle cross section, and its two ends are provided with right-angled triangle connecting parts of the same height. The two connecting parts are of equal length and are mirror images of the axis of the wear-resistant liner (2). One end of the wear-resistant liner (2) and the connecting part thereon are provided with countersunk through holes (204), and the other end and the connecting part thereon are provided with threaded holes (205) that cooperate with the countersunk through holes (204).

3. The wear-resistant liner for mining according to claim 2, characterized in that: The countersunk through hole (204) and the threaded hole (205) that mate with it extend from the lower part of the wear-resistant liner (2) to the upper inner side.

4. A wear-resistant liner for mining according to claim 2 or 3, characterized in that: When the locking plate (202) is directly opposite the connecting hole (101), the distance between the end of the connecting post (201) and its adjacent connecting post (201) is greater than zero.

5. A wear-resistant liner for mining according to claim 4, characterized in that: The base plate (1) has connecting waist holes on both sides.

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