Chain fluttering prevention device of mining crusher

Abstract

The utility model discloses a chain floating prevention device for a mining crusher, which effectively solves the problem of chain floating of a reversed loader caused by damage of a bottom groove below the crusher, effectively solves the problem of unsafe factors such as difficulty in cargo conveying and equipment damage caused by abnormal operation of a scraper of the reversed loader due to incapability of an upper edge notch of the bottom groove, and belongs to the technical field of mining crushers. The cushion block comprises a cushion block body, the cushion block body is provided with a plurality of mounting holes penetrating from top to bottom, the cushion block body comprises a first transportation section, a widening section and a second transportation section, the widening section is arranged between the first transportation section and the second transportation section, a horizontal pressing plate is fixed to one side of the widening section of the cushion block body, and the thickness of the pressing plate is not larger than the height of the widening section. The length of the pressing plate is not larger than that of the widened section, and the width of the pressing plate is equal to that of the upper edge of the bottom groove.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining crushers, in particular to a floating chain anti-drifting device for mining crushers. Background Art

[0002] With the continuous improvement of coal mine operation efficiency, the degree of mechanization is getting higher and higher, and the coal production has increased significantly. The fully mechanized top coal caving working face is composed of a transfer machine (764 / 200), a crusher, a front conveyor, a rear conveyor, and a support. The coal mining method is that the coal mining machine cuts the coal 3 meters and the support caving the top coal 3 meters.

[0003] The front conveyor is connected to the transfer machine, which is connected to the rear conveyor. The crusher is installed above a certain position in the middle of the transfer machine through one or more layers of pads to crush the materials transported on the transfer machine.

[0004] Coal mining is done in a one-to-one manner. In the production process, it is inevitable to produce large gangue and carbon. When the crusher breaks the gangue, it will also make a notch on the upper edge of the bottom trough of the transfer machine. When the scraper of the transfer machine passes through the notch on the upper edge of the bottom trough, it will get stuck, trip, or have chain drifting, causing the transfer machine to be unable to ship normally. When the scraper is stuck or tripped by the notch or the chain drifts on the transfer machine, the crusher will break the scraper, break the large chain, and damage the equipment.

[0005] If you want to replace the bottom trough under the crusher, you first need to disassemble the transfer machine into two parts, then pull out the large chain (upper chain, bottom chain), then lift the 14-ton crusher, pull out the bottom trough, and finally drag the new bottom trough from the 240-meter working surface with the unit. The process of replacing the bottom trough is very complicated, time-consuming and costly. It takes 3 days and 9 shifts (100 workers) to replace the new bottom trough (200,000 yuan). It takes a lot of time and labor to replace with a large number of people. There are also various unsafe factors and great hidden dangers during the lifting and transportation process. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a mining crusher anti-drifting chain device, which can effectively solve the chain drifting phenomenon of the transfer machine caused by damage to the bottom trough of the transfer machine, and effectively solve the unsafe factors such as the difficulty in transporting goods and damage to equipment caused by the scraper of the transfer machine not being able to operate normally due to the gap.

[0007] The utility model is realized by adopting the following technical solutions:

[0008] The anti-drifting chain device of a mining crusher includes a pad block, which is provided with a plurality of mounting holes running through from top to bottom. The pad block includes a transport section one, a widened section and a transport section two. A horizontal pressing plate is fixed on one side of the widened section of the pad block, the thickness of the pressing plate is not greater than the height of the widened section, the length of the pressing plate is not greater than the length of the widened section, and the width of the pressing plate is equal to the width of the upper edge of the bottom trough.

[0009] When in use, install the modified anti-drifting chain device to the crusher, that is, replace the original pad with the modified pad with a pressure plate. The position of the pressure plate covers the position of the notch on the upper edge of the bottom trough, so that the scraper of the transfer machine will not be stuck or tripped in the notch, and the chain will not drift.

[0010] Further preferably, it also includes a pressure strip, which is fixed on one side of the horizontal pressure plate, and the lowest horizontal position of the pressure strip is not higher than the lowest horizontal position of the upper edge of the bottom groove of the transfer machine.

[0011] The utility model discloses a mining crusher chain anti-drifting device made of cushion blocks, which is mainly used to solve the problem that the upper edge of the bottom trough is damaged during the production process of the crusher, resulting in chain drifting during the operation of the transfer machine scraper, so as to ensure safe production and smooth operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 The utility model is represented by a schematic diagram of the structure.

[0015] Figure 2 A schematic diagram showing a top view of the upper edge of the bottom groove.

[0016] Figure 3 Schematic diagram showing the elevation of the crusher and transfer machine.

[0017] In the figure: 1-pressing strip, 2-pressing plate, 3-cushion block, 31-transportation section 1, 32-widening section, 33-transportation section 2, 4-installation hole, 5-upper edge of bottom groove. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0019] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0022] The anti-floating chain device for a mining crusher includes a cushion block 3, a pressure plate 2, and a pressure strip 1. The cushion block 3 is provided with a plurality of mounting holes that penetrate from top to bottom. The cushion block 3 is installed on the bottom trough through the mounting holes. The cushion block 3 is used to adjust the height of the crusher. The cushion block 3 includes a transport section 1 31, a widening section 32, and a transport section 2 33. A horizontal pressure plate 2 is fixed to the widening section 32 of the cushion block 3 near the upper edge 5 of the bottom trough. The thickness of the pressure plate 2 is not greater than the height of the widening section 32, the length of the pressure plate 2 is not greater than the length of the widening section 32, and the width of the pressure plate 2 is equal to the width of the upper edge 5 of the bottom trough. In this embodiment, the pressure plate is a steel plate of 1000mm*30*20mm (length*width*thickness). The pressure strip 1 is fixed to one side of the horizontal pressure plate 2, and the lowest horizontal position of the pressure strip 1 is not higher than the lowest horizontal position of the edge of the upper edge 5 of the bottom trough of the transfer machine. In this embodiment, the pressure strip is a 1000mm φ30mm round steel.

[0023] When using, first lift the crusher, pull out the lowest pad block 3 on the side with the notch on the upper edge 5 of the bottom trough, transfer it to the ground (open flames are not allowed underground) and start the modification, weld the pressure plate 2 to the side of the widened section 32 of the pad block 3 close to the scraper, and then replace the original lowest pad block 3 on the side with the notch on the upper edge 5 of the bottom trough with the modified pad block 3, and finally install the crusher.

[0024] After replacing the original pad with the pad 3 provided with the pressing plate 2, the position of the pressing plate 2 covers the position of the notch on the upper edge of the bottom trough, and the original bolts are used to fix the pad during the replacement process. After the replacement is completed, the pressing plate 2 prevents the large chain and scraper of the transfer machine from passing over the upper edge 5 of the bottom trough, so that the scraper of the transfer machine will not be stuck or tripped in the notch, and there will be no chain drifting. In this way, even if the notched bottom trough of the transfer machine is not replaced, the normal shipment of the transfer machine can be guaranteed, and no device of the crusher has been changed.

[0025] The utility model has the advantages of simple installation, convenient operation and low transformation cost, and cleverly solves the problem that the scraper of the transfer machine is broken and the large chain is interrupted because the upper edge of the bottom trough is notched by the crusher.

[0026] The above is only a specific implementation of the utility model, which enables those skilled in the art to understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. The anti-drifting chain device for mining crusher is characterized by: The invention comprises a cushion block (3), wherein the cushion block (3) is provided with a plurality of mounting holes extending from top to bottom, wherein the cushion block (3) comprises a first transport section (31), a widening section (32) and a second transport section (33), wherein the widening section (32) is arranged between the first transport section (31) and the second transport section (33), and a horizontal pressing plate (2) is fixed on one side of the widening section (32) of the cushion block (3), wherein the thickness of the pressing plate (2) is not greater than the height of the widening section (32), the length of the pressing plate (2) is not greater than the length of the widening section (32), and the width of the pressing plate (2) is equal to the width of the upper edge (5) of the bottom groove.

2. The anti-drifting chain device for a mining crusher according to claim 1 is characterized in that: It also includes a pressure strip (1), which is fixed on one side of the horizontal pressure plate (2), and the lowest horizontal position of the pressure strip (1) is not higher than the lowest horizontal position of the edge of the upper edge (5) of the bottom groove of the transfer machine.

3. The anti-drifting chain device for a mining crusher according to claim 2 is characterized in that: The length of the pressure strip (1) is equal to the length of the pressure plate (2).

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