Lining plate device of ore receiving container

Abstract

The utility model discloses a lining plate device of an ore receiving container. A foundation plate comprises a rubber layer and a steel plate located above the rubber layer. A transverse rib grating perpendicular to the steel plate and a longitudinal rib grating forming a certain included angle with the steel plate are fixed to the upper side of the steel plate. And the transverse rib grating plates and the longitudinal rib grating plates are crisscross and mutually fixed. Bolts are installed in the longitudinal through holes of the steel plates, the lower ends of the bolts are fixed to the rubber layer, and the upper ends of the bolts are connected with spring washers and nuts. A protective cap is fixedly installed on the upper side of the steel plate. A gap is formed between the top end of the bolt and the protective cap. The longitudinal rib grating has a larger area for bearing impact of ores, most of the ores firstly impact the rib grating during blanking, the foundation plate is abraded only after the rib grating is abraded and consumed, and the service life of the lining plate is greatly prolonged through combination of the longitudinal rib grating and the foundation plate. The ore blanking impact force is conducted to the rubber layer through elastic deformation of the spring washer, the rubber layer plays a role in buffering the whole lining plate device, and the impact resistance of the lining plate is further improved.

Description

Technical Field

[0001] The utility model relates to a lining plate device for an ore receiving container. The ore receiving container mainly comprises a measuring bucket and a lifting skip. Background Art

[0002] In the field of metal mining, the hoisting system generally adopts the hoisting skip loading and transportation mode and the metering bucket quantitative mode. In the above process, the ore flow performs horizontal throwing motion when entering the metering bucket from the belt or entering the skip from the metering bucket through the belt. The receiving surface (commonly known as the ore drop point) of the metering bucket and the hoisting skip as ore receiving containers is subject to a large impact force from the ore, so it is necessary to install a liner device inside the container to cope with the impact of the ore.

[0003] As a prior art, the internal lining device of the ore receiving container is generally a wear-resistant steel plate. The lining used is a flat structure, and the thickness is configured according to the usage. Since the ore has sharp edges and corners and is hard, and the drop height is large, this type of lining is quickly impacted and worn. Even if it is made of wear-resistant material, the service life of the lining is difficult to be satisfactory. The lining needs to be replaced in time after it is damaged. Therefore, the maintenance and replacement of the lining has become one of the key tasks of mine maintenance, which takes up a lot of time and labor, and greatly affects the production efficiency of the mine.

[0004] The Chinese utility model with the authorization announcement number CN205873642U discloses "an anti-wear device for a lifting bucket", which includes a steel plate, a rubber plate, and a hexagonal bolt; a rubber plate is arranged on the steel plate, and the rubber plate is fixed to the steel plate by the hexagonal bolt. The hexagonal bolts can be used to conveniently and quickly install or replace the rubber plate, which can effectively prevent the lifting bucket from being worn and extend the service life of the lifting bucket. In this solution, the rubber plate is used to directly contact the ore, and the impact resistance of the rubber plate is poor. In particular, the ore has sharp edges and corners, which can easily damage the rubber material. Therefore, this type of anti-wear device requires frequent replacement of the rubber plate, which seriously affects production efficiency.

[0005] The Chinese utility model with the authorization announcement number CN206437754U discloses "a kind of wear-resistant and anti-smashing grid lining for bucket", which includes a rib part and a base plate. The base plate is a square plate with a number of screw holes arranged around the base plate. The rib part is located on the base plate. The rib part is composed of a number of vertically intersecting strips, and a grid groove is formed between the vertically intersecting strips. The rib part and the base plate are cast as one body, and the lining plate is made of wear-resistant steel. Compared with the prior art, it uses a grid groove to hold square ore, which reduces the direct impact of other falling ores on the lining plate, produces the effect of ore grinding ore, has a simple structure, low cost, and is convenient and durable. The main disadvantages of this scheme are: first, the wall plate (strip) of the grid groove is arranged perpendicular to the base plate (as can be seen from the attached figure of the specification), and the falling ore mainly impacts the base plate, and the service life of the base plate is short; second, the lining plate as a whole lacks a buffer mechanism. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a lining plate device for an ore receiving container, which improves the structure of the lining plate on the receiving surface to enhance the impact resistance of the ore receiving container and achieve the purpose of extending the service life.

[0007] The technical solution of the utility model is as follows:

[0008] The lining device of an ore receiving container comprises a base plate whose lower side is used for contacting and connecting with the bottom wall of the ore receiving container, the base plate comprises a rubber layer and a steel plate located above the rubber layer and in contact with the rubber layer; at least two transverse rib grating plates perpendicular to the steel plate are fixed on the upper side of the steel plate; a plurality of longitudinal rib grating plates forming an angle α with the steel plate are also fixed on the upper side of the steel plate, wherein α is less than 90°; the transverse rib grating plates and the longitudinal rib grating plates are cross-linked and fixed to each other; the steel plate is provided with a longitudinal through hole, in which a bolt capable of sliding up and down along the hole wall is installed; the lower end of the bolt is fixed to the rubber layer, and the upper end is connected to a nut; a spring washer is installed between the nut and the steel plate; a protective cap for covering the nut, spring washer and bolt is fixedly installed on the upper side of the steel plate; a longitudinal gap is provided between the top of the bolt and the protective cap.

[0009] Preferably, the angle α between the steel plate and the longitudinal rib grid plate meets the requirement of shielding the protective cap in the vertical direction.

[0010] Preferably, a connecting plate is fixedly connected to the lower end of the bolt; and the connecting plate is embedded in the rubber layer.

[0011] Preferably, the upper side surface of the steel plate, the exposed surface of the longitudinal rib grating plate and the exposed surface of the transverse rib grating plate are all welded with a wear-resistant layer.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] First, on the one hand, the longitudinal rib grid of the utility model is inclined relative to the base plate, and has a larger area for bearing the impact of ore. When the material falls, most of the ore first impacts the rib grid, and the base plate body is worn out only after the rib grid is worn out. The combination of the two greatly improves the service life of the lining; on the other hand, the impact force of the ore falling is transmitted to the rubber layer through the elastic deformation of the spring washer, and the rubber layer has a buffering and shock-absorbing effect on the lining device as a whole, further improving the impact resistance of the lining; on the third aspect, when the rubber layer undergoes radial elastic deformation, the spring washer can compensate for the deformation, and the lining device as a whole will not loosen; on the fourth aspect, the rubber layer does not contact the material and will not be damaged by impact.

[0014] Second, in the optimized technical solution of the utility model, the inclination angle of the longitudinal rib grid plate relative to the base plate meets the requirement of shielding the protective cap in the vertical direction (i.e., the direction of falling materials), which can effectively prevent the falling ore from directly impacting the protective cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structural shape of an embodiment of the utility model, and the connecting mechanism between the base plate and the rubber layer is omitted in this figure.

[0016] Figure 2 It is a schematic cross-sectional view of the local structure of an embodiment of the utility model, which is mainly used to show the connection relationship between the base plate and the rubber layer, and the relative position relationship between the longitudinal rib grid plate and the protective cap.

[0017] Description of reference numerals:

[0018] 1. Steel plate; 2. Longitudinal rib grid plate; 3. Transverse rib grid plate; 4. Rubber layer; 5. Connecting plate; 6. Spring washer; 7. Nut; 8. Bolt; 9. Protective cap. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the embodiments and drawings.

[0020] like Figure 1 The embodiment of the lining plate device of the utility model includes a base plate for contacting and connecting with the bottom wall of the ore receiving container at the lower side. The base plate includes a rubber layer 4 and a steel plate 1 located above the rubber layer 4 and in contact with the rubber layer 4. At least two (two in this embodiment running left and right) transverse rib grid plates 3 perpendicular to the steel plate 1 are welded and fixed on the upper side of the steel plate 1. A plurality of longitudinal rib grid plates 2 forming a certain angle α (α < 90°) with the steel plate 1 are also welded and fixed on the upper side of the steel plate 1. The transverse rib grid plates 3 and the longitudinal rib grid plates 2 are cross-linked and fixed to each other. Specifically, the front and rear sides of the longitudinal rib grid plates 2 between the two transverse rib grid plates 3 are respectively welded to the side parts of the two transverse rib grid plates 3, the rear side of the longitudinal rib grid plate 2 in front of the front transverse rib grid plate 3 is welded to the front side part of the transverse rib grid plate 3, and the front side of the longitudinal rib grid plate 2 behind the rear transverse rib grid plate 3 is welded to the rear side part of the transverse rib grid plate 3.

[0021] like Figure 2The steel plate 1 is provided with a longitudinal through hole, in which a bolt 8 capable of sliding up and down along the hole wall is installed, the lower end of the bolt 8 is fixed to the rubber layer 4, and the upper end is connected to a nut 7. A spring washer 6 is installed between the nut 7 and the steel plate 1. A protective cap 9 for covering the nut 7, the spring washer 6 and the bolt 8 is fixedly installed on the upper side of the steel plate 1, wherein a longitudinal gap is provided between the top end of the bolt 8 and the protective cap 9, and the gap is slightly larger than the maximum axial elastic displacement of the spring washer 6.

[0022] Specifically, a connecting plate 5 is fixedly connected to the lower end of the bolt 8 , and the connecting plate 5 is embedded in the rubber layer 4 .

[0023] Furthermore, the angle α between the longitudinal rib grid plate 2 and the steel plate 1 is generally set to about 60°, such as 55-65°, and meets the requirement of shielding the protective cap in the vertical direction (ie, the blanking direction).

[0024] Furthermore, when processing the liner, the transverse rib grid plate 3 and the longitudinal rib grid plate 2 are first welded on the base plate to form a basic structure, and then the wear-resistant layer is welded on the entire liner, that is, the upper side of the steel plate 1, the exposed surface of the longitudinal rib grid plate 2, and the exposed surface of the transverse rib grid plate 3. When the liner is installed, the opening direction of the groove formed by the rib grid is upward, that is, toward the falling direction of the ore flow.

[0025] The steel plate 1, the longitudinal rib grid plate 2, the transverse rib grid plate 3, the rubber layer 4 and the connecting plate 5 described in this embodiment are all in the shape of flat plates.

[0026] In the on-site trial of the Sizhuang branch of the Jiaojia Gold Mine, the use of the existing planar structure liner and the liner device of this embodiment were compared. The service life of the liner of the same wear-resistant material is increased by more than 50% by using the liner of the embodiment structure of the utility model. It has a significant effect on reducing the outsourcing or processing costs, reducing the maintenance workload, and improving production efficiency and economic benefits for the mine.

Claims

1. An ore receiving container lining device, comprising a base plate for contacting and connecting with the bottom wall of the ore receiving container at the lower side, characterized in that: The base plate comprises a rubber layer (4) and a steel plate (1) located above the rubber layer (4) and bonded to the rubber layer (4); at least two transverse rib grating plates (3) perpendicular to the steel plate (1) are fixed on the upper side of the steel plate (1); a plurality of longitudinal rib grating plates (2) forming an angle α with the steel plate (1) are also fixed on the upper side of the steel plate (1), wherein α is less than 90°; the transverse rib grating plates (3) and the longitudinal rib grating plates (2) are intersected vertically and horizontally and fixed to each other; the steel plate (1) is provided with A longitudinal through hole is installed in the longitudinal through hole, wherein a bolt (8) capable of sliding up and down along the hole wall is installed; the lower end of the bolt (8) is fixed to the rubber layer (4), and the upper end is connected to a nut (7); a spring washer (6) is installed between the nut (7) and the steel plate (1); a protective cap (9) for covering the nut (7), the spring washer (6) and the bolt (8) is fixedly installed on the upper side of the steel plate (1); a longitudinal gap is provided between the top end of the bolt (8) and the protective cap (9).

2. The ore receiving container lining device according to claim 1, characterized in that: The included angle α between the steel plate (1) and the longitudinal rib grid plate (2) meets the requirement of shielding the protective cap in the vertical direction.

3. The ore receiving container lining device according to claim 1, characterized in that: A connecting plate (5) is fixedly connected to the lower end of the bolt (8); the connecting plate (5) is embedded in the rubber layer (4).

4. The ore receiving container lining device according to claim 1, characterized in that: The upper side surface of the steel plate (1), the exposed surface of the longitudinal rib grating (2), and the exposed surface of the transverse rib grating (3) are all welded with a wear-resistant layer.

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