A screening grate device for a belt conveyor

Abstract

The utility model relates to material screening technical field, concretely relates to a kind of screening grate device for belt feeder unloading, including power pack and grate screening board, the power pack is used to drive grate screening board overturn, so that the material on the grate screening board slides, the grate screening board includes fixed plate and several grate bars, several The grate bar is distributed along the length direction of fixed plate, and the grate bar can be locked on fixed plate and slide, so that the spacing between grate bar can be adjusted.The screening spacing of screening grate in the utility model can be adjusted, so as to be applicable to different material screening.

Description

Technical Field

[0001] This utility model relates to the field of material screening technology, specifically to a screening grate device for unloading conveyor belts. Background Technology

[0002] Materials may be affected by external factors during the conveying process, such as the mixing of impurities or the formation of large pieces of material due to accumulation during the conveying process. These situations will have an adverse effect on subsequent processing or use. Therefore, when materials are conveyed by belt conveyors, screening grates are usually set at the discharge point of the belt conveyor (i.e., the end of the belt conveyor) to perform preliminary screening of the materials and remove impurities or large pieces of material.

[0003] However, since different types of materials often have different particle size distributions and physical properties, screening grates of different particle sizes are required for screening. However, each time the screening grate is replaced, the operator needs to first separate the original grate from other related equipment, and then install and fit the new grate onto the equipment. This process is not only complicated, but also prone to wear and loosening of the equipment connections due to frequent replacement and installation operations. Summary of the Invention

[0004] This invention addresses the problem in existing technologies where screening grates need to be changed repeatedly when screening different materials, by providing a screening grate device for conveyor belt unloading. In this invention, the screening spacing of the screening grates is adjustable, making it suitable for screening various materials.

[0005] The technical solution of this utility model is: a screening grate device for unloading conveyor belts, including a power component and a grate screening plate. The power component is used to drive the grate screening plate to rotate, so that the material on the grate screening plate slides off. The grate screening plate includes a fixed plate and a plurality of grate bars. The plurality of grate bars are distributed parallel to each other along the length direction of the fixed plate, and the grate bars can slide and lock on the fixed plate, so that the spacing between the grate bars can be adjusted.

[0006] By adopting the above solution, by setting grate bars that can slide and lock along the length of the fixed plate, the spacing between the grate bars can be adjusted, thereby adjusting the screening particle size of the grate screening plate, making it suitable for screening different materials. Furthermore, by using a power component to drive the grate screening plate to rotate, the material accumulated on the grate screening plate can slide off, thereby preventing the accumulation of debris from clogging the grate screening plate.

[0007] Based on the above solution, the present invention can be further improved as follows:

[0008] Furthermore, there are two fixing plates located at both ends of the grate bar, which can increase the strength of the grate screening plate.

[0009] Furthermore, the fixed plate has a groove in the middle and a limiting block on the grate bar. The limiting block matches the groove and can slide within the groove, thereby limiting the sliding path of the grate bar.

[0010] Furthermore, the left end of the grate bar passes through the left-side fixing plate and is provided with a fastener, which is used to lock the grate bar to the fixing plate after the grate bar slides into place.

[0011] Furthermore, the fixed plate is provided with a groove with a height smaller than that of the fixed plate along the left and right direction, and the groove is connected to the slide groove, so that the grate bar can slide through the slide groove to the groove and separate from the fixed plate. This allows the number of grate bars in the grate screening plate to be changed, making it easier to adjust the screening particle size of the grate screening plate according to different materials.

[0012] Furthermore, the cross-sectional dimensions of the grate bar are smaller than those of the limiting block, and the width and height of the slot are both greater than or equal to the width and height of the limiting block, so that the limiting block can pass through the slot, making the overall operation simple.

[0013] Furthermore, the fixed plate and the grate screening plate are provided with integrated baffles at both ends. The baffles are used to prevent materials from falling from the front and rear sides of the grate screening plate. The baffles are provided with circular through holes. The fixed plate on the left side is cylindrical at both ends and passes through the through holes to connect with the power assembly.

[0014] Furthermore, the power assembly includes a connecting rod and a telescopic unit. The telescopic unit is connected to the fixed plate via the connecting rod, so that the extension and retraction of the telescopic unit can drive the grate screening plate to rotate.

[0015] Furthermore, the grate bar is cylindrical, and the left end of the grate bar is threaded. The fastener is a nut, and tightening the nut can make the limiting block and the fixing plate press against each other.

[0016] Furthermore, the telescopic unit is a cylinder.

[0017] The beneficial effects of this utility model through the above technical solution are as follows:

[0018] 1. In this utility model, by setting a grate bar that can slide and lock along the length of the fixed plate, the spacing between the grate bars can be adjusted, thereby adjusting the screening particle size of the grate screening plate, so as to be suitable for screening different materials. Furthermore, by driving the grate screening plate to rotate through the power component, the material accumulated on the grate screening plate can slide off, thereby avoiding the accumulation of debris that causes the grate screening plate to become clogged.

[0019] 2. In a further embodiment of this utility model, by providing a groove on the fixed plate that is in the left-right direction and whose height is less than that of the fixed plate, and the groove being connected to the sliding groove, the grate bar can slide through the sliding groove to the groove opening and separate from the fixed plate, thereby allowing the number of grate bars in the grate screening plate to be changed, making it easier to adjust the screening particle size of the grate screening plate according to different materials. Attached Figure Description

[0020] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0021] Figure 2 This is the second structural schematic diagram of this utility model;

[0022] Figure 3 This is a cross-sectional structural schematic diagram of the sieve plate in this utility model;

[0023] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the installation of the comb bars in this utility model;

[0025] Figure 6 This is one of the structural schematic diagrams of the sieve plate in this utility model;

[0026] Figure 7 This is the second schematic diagram of the structure of the sieve plate in this utility model.

[0027] The attached diagram is labeled as follows: 1. Power assembly, 101. Connecting rod, 102. Telescopic unit, 2. Grate screen plate, 201. Fixing plate, 202. Grate bar, 203. Slide groove, 204. Limiting block, 205. Fastener, 206. Groove, 3. Baffle, 301. Through hole. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] like Figure 1 and Figure 2As shown, a screening grate device for unloading conveyor belts includes a power assembly 1 and a grate screening plate 2. The power assembly 1 drives the grate screening plate 2 to rotate, causing the material on the grate screening plate 2 to slide off. The grate screening plate 2 includes a fixed plate 201 and a plurality of grate bars 202. The plurality of grate bars 202 are distributed parallel to each other along the length direction of the fixed plate 201, and the grate bars 202 can slide and lock on the fixed plate 201, so that the spacing between the grate bars 202 can be adjusted. This allows the screening particle size of the grate screening plate 2 to be adjusted, thus making it suitable for screening different materials. Furthermore, by driving the grate screening plate 2 to rotate through the power assembly 1, the material accumulated on the grate screening plate 2 can slide off, thereby preventing the accumulation of debris from clogging the grate screening plate 2.

[0030] As one possible implementation method, such as Figure 1 and Figure 2 As shown, there are two fixing plates 201 located at both ends of the grate bar 202, which are used to ensure the strength of the grate screening plate 2.

[0031] As one possible implementation method, such as Figure 1 and Figure 2 As shown, the fixed plate 201 and the grate screening plate 2 are provided with integrated baffles 3 at both ends. The baffles 3 are used to prevent materials from falling from the front and rear sides of the grate screening plate 2. The baffles 3 are provided with circular through holes 301. The fixed plate 201 on the left side is cylindrical at both ends and passes through the through holes 301 to connect with the power component 1. This allows the grate screening plate 2 to rotate around the fixed plate 201 on the left side as the rotation axis under the drive of the power component 1. There are small gaps between the fixed plate 201 on the right side and the baffles 3 at both ends to avoid friction between the fixed plate 201 on the right side and the baffles 3 during rotation.

[0032] As one possible implementation method, such as Figure 1 and Figure 2 As shown, the power assembly 1 includes a connecting rod 101 and a telescopic unit 102. The telescopic unit 102 is connected to the fixed plate 201 through the connecting rod 101. Specifically, one end of the connecting rod 101 is fixedly connected to the fixed plate 201, and the other end is rotatably connected to the output end of the telescopic unit 102, so that the extension and retraction of the telescopic unit 102 can drive the grate screening plate 2 to flip.

[0033] As one possible implementation method, such as Figure 3 and Figure 4As shown, a groove 203 is provided in the middle of the fixing plate 201. The groove 203 on the left fixing plate 201 extends through its left and right sides, and the groove 203 on the right fixing plate 201 extends through its left side. A limiting block 204 is provided on the grate bar 202. The limiting block 204 matches the groove 203, and the limiting block 204 can slide within the groove 203, thereby limiting the sliding path of the grate bar 202.

[0034] As one possible implementation method, such as Figure 3 and Figure 4 As shown, the left end of the grate bar 202 passes through the left side fixing plate 201, and a fastener 205 is provided on the left end of the grate bar 202. The fastener 205 is used to lock the grate bar 202 and the fixing plate 201 after the grate bar 202 slides into place.

[0035] As one possible implementation method, such as Figures 3-5 As shown, the fixing plate 201 is also provided with a groove 206 with a height smaller than that of the fixing plate 201 along the left and right directions, and the groove 206 is connected to the sliding groove 203. In this embodiment, the groove 206 on the left fixing plate 201 extends through its left and right sides, and the groove 206 on the right fixing plate 201 extends through its left side. The positions of the grooves on the left and right fixing plates 201 correspond to each other, so that the grate bars 202 can slide through the sliding groove 203 to the groove 206 and separate from the fixing plate 201, so that the number of grate bars 202 in the grate screening plate 2 can be changed (e.g., Figure 6 and Figure 7 As shown in the figure, it is easier to adjust the screening particle size of the grate screen plate 2 according to different materials.

[0036] As one possible implementation method, such as Figure 5 As shown, the cross-sectional dimensions of the grate bar 202 are smaller than those of the limiting block 204. In this embodiment, the cross-section of the grate bar 202 is circular, and the diameter of the circle is smaller than the shortest side of the cross-section of the limiting block 204. The width and height of the slot 206 are both greater than or equal to the width and height of the limiting block 204, so that the limiting block 204 can pass through the slot 206, making the overall operation simple.

[0037] As one possible implementation, the grate bar 202 is cylindrical, and the left end of the grate bar 202 is threaded. The fastener 205 is a nut, and tightening the nut can make the limiting block 204 and the fixing plate 201 press against each other.

[0038] As one possible implementation, the telescopic unit 102 is a cylinder, and an external air source is connected to the cylinder through an air pipe to control the cylinder's movement.

[0039] In this embodiment, when used:

[0040] Place the grate screen plate 2 at the unloading end of the belt conveyor and support the fixing plate 201 on the right side of the grate screen plate 2 (for example, set up a support platform or support rod so that the fixing plate 201 is erected on top). The front and rear ends of the fixing plate 201 on the left side of the grate screen plate 2 pass through the through holes 301 on the baffle 3 and are connected to the telescopic unit 102, i.e., the cylinder, through the connecting rod 101. The rotation of the grate screen plate 2 can be controlled by controlling the extension and retraction of the cylinder.

[0041] When it is necessary to disassemble the grate bars 202 and change the spacing between them, first tighten the fasteners 205 to loosen the limiting blocks 204 on the grate bars 202 from the fixing plates 201. Then, hold the grate bars 202 and slide them along the grooves 203 inside the fixing plates 201. When the grate bars 202 slide to the point where the limiting blocks 204 on them correspond to the positions of the grooves 206, the grate bars 202 can be pulled out from between the two fixing plates 201 to the left, thereby reducing the number of grate bars 202. This will allow for the removal of the remaining grate bars 202. The position of 02 is adjusted by sliding. When it is adjusted to a suitable position, the limiting block 204 on the grate bar 202 and the fixing plate 201 are pressed against each other by reverse screwing the fastener 205, thereby completing the limiting of the grate bar 202 (try to avoid fixing the grate bar 202 to the position of the slot 206. If it must be fixed at this position, a pad with a size larger than the slot 206 can be added between the nut and the slot 206 to fix the grate bar 202 to the position of the slot 206).

[0042] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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.

[0043] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present invention without departing from the spirit of the present invention or the scope of disclosure shall fall within the protection scope of the present invention.

Claims

1. A screening grate device for unloading conveyor belts, comprising a power assembly (1) and a grate screening plate (2), wherein the power assembly (1) is used to drive the grate screening plate (2) to rotate, causing the material on the grate screening plate (2) to slide off, characterized in that, The sieve plate (2) includes a fixed plate (201) and a plurality of sieve bars (202). The plurality of sieve bars (202) are distributed parallel to each other along the length direction of the fixed plate (201), and the sieve bars (202) can slide and lock on the fixed plate (201), so that the spacing between the sieve bars (202) can be adjusted.

2. The screening grate device for unloading conveyor belts according to claim 1, characterized in that, There are two fixing plates (201) located at both ends of the grate bar (202).

3. The screening grate device for unloading conveyor belts according to claim 2, characterized in that, The fixing plate (201) has a groove (203) in the middle and a limiting block (204) on the grate bar (202). The limiting block (204) matches the groove (203) and can slide in the groove (203).

4. The screening grate device for unloading conveyor belts according to claim 2 or 3, characterized in that, The left end of the grate bar (202) passes through the left side fixing plate (201) and is provided with a fastener (205) which is used to lock the grate bar (202) to the fixing plate (201) after the grate bar (202) slides into place.

5. The screening grate device for unloading conveyor belts according to claim 3, characterized in that, The fixing plate (201) is also provided with a groove (206) with a height smaller than that of the fixing plate (201) along the left and right directions, and the groove (206) is connected to the sliding groove (203), so that the grate bar (202) can slide through the sliding groove (203) to the groove (206) and separate from the fixing plate (201).

6. The screening grate device for unloading conveyor belts according to claim 5, characterized in that, The cross-sectional dimensions of the grate bar (202) are smaller than those of the limiting block (204), and the width and height of the slot (206) are both greater than or equal to the width and height of the limiting block (204), so that the limiting block (204) can pass through the slot (206).

7. The screening grate device for unloading conveyor belts according to claim 4, characterized in that, The fixed plate (201) and the grate screening plate (2) are provided with integrated baffles (3) at both ends. The baffles (3) are used to prevent materials from falling from the front and rear sides of the grate screening plate (2). The baffles (3) are provided with circular through holes (301). The fixed plate (201) on the left side is cylindrical at both ends and passes through the through holes (301) to connect with the power assembly (1).

8. The screening grate device for unloading conveyor belts according to claim 7, characterized in that, The power assembly (1) includes a connecting rod (101) and a telescopic unit (102). The telescopic unit (102) is connected to the fixed plate (201) through the connecting rod (101), so that the telescopic unit (102) can drive the grate screening plate (2) to flip.

9. The screening grate device for unloading conveyor belts according to claim 4, characterized in that, The grate bar (202) is cylindrical, and the left end of the grate bar (202) is threaded. The fastener (205) is a nut. Tightening the nut can make the limiting block (204) and the fixing plate (201) press against each other.

10. The screening grate device for unloading conveyor belts according to claim 8, characterized in that, The telescopic unit (102) is a cylinder.

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