Curved-surface coal unloading coulter board

Abstract

The utility model relates to a curved-surface coal unloading coulter plate which comprises a mounting base plate, a tip head is arranged at the left end of the mounting base plate, two side walls of the mounting base plate are in arc transition, a wear-resistant alloy plowshare is sleeved on the tip head, the right end of the wear-resistant alloy plowshare is smoothly connected with an arc-shaped base steel plate, and a wear-resistant ceramic lining plate is fixed on the outer side of the base steel plate. And the two side walls of the wear-resistant alloy plowshare and the wear-resistant ceramic lining plate are also in circular arc transition. The curved-surface coulter plate is used, the good arc-shaped novel coulter plate basically has no impact on coal flow, impact energy loss and friction heat loss are reduced, the plough is more scientific and reasonable, the plowshare and the tail wing part are of a split structure, the plowshare is convenient to replace, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to a curved surface coal unloading plowshare plate, belonging to the technical field of coal unloading equipment. Background Art

[0002] Coal plow is a commonly used equipment for coal unloading. It can evenly and continuously unload the coal flow on the coal conveyor belt from the designated place to the place where the material is needed, thereby greatly reducing the time required to transport materials and improving efficiency. This saves production and transportation time and costs and makes a great contribution to the enterprise.

[0003] The plowshare plate is an important component of the coal plow. The current plowshare plate is V-shaped, including a plowshare part and a tail part. After the coal flow passes through the plowshare plate, the plowshare plate is severely worn. In addition, the plowshare part and the tail part are an integrated structure. After the plowshare part is worn, it needs to be completely replaced, which increases the maintenance cost. Utility Model Content

[0004] The utility model provides a curved coal unloading plowshare plate, which solves the problem that the current plowshare plate is severely worn, the plowshare head part and the tail wing part are an integrated structure, and the plowshare head part needs to be completely replaced after being worn, which increases the maintenance cost.

[0005] The utility model relates to a curved coal unloading plowshare plate, comprising a mounting base plate, a pointed head portion being arranged at the left end of the mounting base plate, two side walls of the mounting base plate being arc transition, a wear-resistant alloy plowshare being sleeved on the pointed head portion, an arc-shaped base steel plate being smoothly connected to the right end of the wear-resistant alloy plowshare, a wear-resistant ceramic lining plate being fixed to the outer side of the base steel plate, and two side walls of the wear-resistant alloy plowshare and the wear-resistant ceramic lining plate being also arc transition.

[0006] As a preferred embodiment, an L-shaped connecting boss is provided at the left end of the base steel plate, and a connecting groove matching the connecting boss is provided on the outer side of the right end of the wear-resistant alloy plowshare. The outer wall of the left end of the connecting boss is flush with the outer wall of the right end of the wear-resistant alloy plowshare. The connection is convenient and quick, the connection is more firm, and a labyrinth seal is formed at the connection to better prevent coal powder from entering.

[0007] As a preferred embodiment, fixing bolts are fixed on the inner side of the left end of the connecting boss and the inner wall of the base steel plate, and the fixing bolts pass through the mounting base plate and are connected with locking nuts to facilitate installation and fixation.

[0008] As a preferred embodiment, a clamping boss is provided on the outer side of the right end of the connecting boss, and a clamping groove cooperating with the clamping boss is provided on the outer side of the left end of the wear-resistant ceramic lining plate to better prevent the end of the wear-resistant ceramic lining plate from detaching from the base steel plate.

[0009] As a preferred embodiment, the wear-resistant ceramic lining includes a plurality of ceramic blocks, and connecting rubbers are provided between adjacent ceramic blocks and on the inner sides of the ceramic blocks. The connecting rubbers are fixed to the base steel plate by gluing. The wear-resistant ceramic lining is a soft structure, and the outer wall of the wear-resistant ceramic lining can be easily arranged according to the shape of the outer wall of the base steel plate.

[0010] The utility model has the following beneficial effects:

[0011] The use of curved plowshare plates with good arc shape has basically no impact on the coal flow, reducing impact energy loss and friction heat loss, which is more scientific and reasonable. The plowshare and tail wing parts are split structures, which facilitates the replacement of the plowshare and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 A partial structural diagram of

[0014] Figure 3 It is a structural schematic diagram of the top of the wear-resistant ceramic lining plate;

[0015] Figure 4 It is a structural schematic diagram of the side of the wear-resistant ceramic lining;

[0016] Figure 5 The velocity decomposition diagram of coal particle m hitting a point on the existing plow blade;

[0017] Figure 6 It is a velocity decomposition diagram of coal particle m impacting one point of the utility model;

[0018] Figure 7 It is the relationship diagram of the component velocity v2 changing with the angle α;

[0019] In the figure: 1. wear-resistant alloy plowshare; 2. mounting base plate; 3. wear-resistant ceramic lining plate; 4. base steel plate; 5. fixing bolt; 6. connecting boss; 7. connecting groove; 8. socket slot; 9. pointed head; 10. clamping groove, 11. clamping boss, 12. ceramic block, 13. connecting rubber. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with embodiments.

[0021] Embodiment 1, as Figure 1 and Figure 2As shown, the utility model is a curved coal unloading plowshare plate, including a mounting base plate 2, a sharp head 9 is provided at the left end of the mounting base plate 2, and both side walls of the mounting base plate 2 are arc transitions, and the sharp head 9 is sleeved with a wear-resistant alloy plowshare 1, and the right end of the wear-resistant alloy plowshare 1 is smoothly connected with an arc-shaped base steel plate 4, and a wear-resistant ceramic lining plate 3 is fixed to the outer side of the base steel plate 4, and both side walls of the wear-resistant alloy plowshare 1 and the wear-resistant ceramic lining plate 3 are also arc transitions.

[0022] like Figure 5 As shown in the figure, a schematic diagram of the plowboard is drawn according to the on-site plowboard mechanism to visually observe the shape of the plowboard. Point c is the plowhead of the plowboard, and a and b are the tail wings of the plowboard. The angle between the left and right panels of the plowboard is 60°. A point m in the coal flow is selected as the analysis object, and the velocity decomposition during operation is performed. The coal particle m impacts a point on the plowboard panel at a speed of v = 2.5m / s. At this time, the momentum p = mv. According to the principle of vector addition, the velocity v can be decomposed into two sub-velocities, a velocity v1 parallel to the plowboard panel and a velocity v2 perpendicular to the plowboard panel. At the moment when v impacts the plowboard panel, the elasticity of the coal particles after impact and crushing is almost zero, and the velocity v2 rapidly decays to zero. At this time, the momentum loss is p' = mv1, which is converted into impact and friction heat on the plowboard panel. The absolute value of the momentum of the coal particle m drops from p = mv to p' = mv1, and the lost momentum is p" = mv2.

[0023] Confirmation results: Through on-site investigation and calculation analysis, it was found that the on-site plowshare plowshare was triangular in shape, which had a greater impact on the momentum attenuation of the coal flow and aggravated the wear of the plowshare.

[0024] like Figure 6 and 7 As shown in the figure, when the coal flow impacts the curved plow blade, the closer the position along the impact surface is to point C, the smaller the angle α is, and the more the velocity v2 approaches zero infinitely, the coal flow at the head can smoothly enter the plow blade surface. The velocity does not decay, and at the same time, a layer of coal flow dense surface is formed on the plow blade surface, which reduces the impact and wear of the following coal flow on the plow blade. The new plow head has basically no impact on the coal flow, reducing the impact energy loss and friction heat loss. More scientific and reasonable. After installing the plow board with a new structure, the plow head structure has been greatly improved, the impact velocity of the coal flow remains basically unchanged, and the shape and thickness of the plow head remain basically unchanged after a period of use.

[0025] Example 2, based on Example 1, an L-shaped connecting boss 6 is provided at the left end of the base steel plate 4, and a connecting groove 7 matching with the connecting boss 6 is provided on the outer side of the right end of the wear-resistant alloy plowshare 1, and the outer wall of the left end of the connecting boss 6 is flush with the outer wall of the right end of the wear-resistant alloy plowshare 1.

[0026] A fixing bolt 5 is fixed to the inner side of the left end of the connecting boss 6 and the inner side wall of the base steel plate 4 , and the fixing bolt 5 passes through the mounting base plate 2 and is connected to a locking nut.

[0027] A clamping boss 11 is provided on the outer side of the right end of the connecting boss 6 , and a clamping groove 10 matching with the clamping boss 11 is provided on the outer side of the left end of the wear-resistant ceramic lining plate 3 .

[0028] like Figure 3 and Figure 4 As shown, the wear-resistant ceramic lining plate 3 includes a plurality of ceramic blocks 12, and connecting rubbers 13 are provided between adjacent ceramic blocks 12 and on the inner sides of the ceramic blocks 12, and the connecting rubbers 13 are fixed to the base steel plate 4 by adhesive. During installation, an arc-shaped base steel plate 4 is manufactured and processed, and fixing bolts 5 are welded on it; the wear-resistant ceramic lining plate 3 of suitable size is cut and firmly fixed on the base steel plate 4 by adhesive; the tip head 9 of the mounting base plate 2 is inserted into the socket slot 8 of the wear-resistant alloy plowshare 1, and the base steel plate 4 with the wear-resistant ceramic lining plate 3 is installed on the arc-shaped mounting base plate 2, and the connection between the base steel plate 4 and the wear-resistant alloy plowshare 1 is butted with the connection groove 7 through the connection boss 6.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0030] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

Claims

1. A curved coal unloading plowshare, characterized in that: The invention comprises a mounting base (2), wherein a pointed head (9) is provided at the left end of the mounting base (2), and the two side walls of the mounting base (2) are in the form of arc transitions. The pointed head (9) is sleeved with a wear-resistant alloy plowshare (1), and the right end of the wear-resistant alloy plowshare (1) is smoothly connected to an arc-shaped base steel plate (4), and a wear-resistant ceramic lining plate (3) is fixed to the outer side of the base steel plate (4), and the two side walls of the wear-resistant alloy plowshare (1) and the wear-resistant ceramic lining plate (3) are also in the form of arc transitions.

2. The curved coal unloading plowshare according to claim 1, characterized in that: An L-shaped connecting boss (6) is provided at the left end of the base steel plate (4), a connecting groove (7) matching with the connecting boss (6) is provided at the outer side of the right end of the wear-resistant alloy plowshare (1), and the outer side wall of the left end of the connecting boss (6) is flush with the outer side wall of the right end of the wear-resistant alloy plowshare (1).

3. The curved coal unloading plowshare according to claim 2, characterized in that: A fixing bolt (5) is fixed on the inner side of the left end of the connecting boss (6) and the inner side wall of the base steel plate (4), and the fixing bolt (5) passes through the mounting base plate (2) and is connected with a locking nut.

4. The curved coal unloading plowshare according to claim 2, characterized in that: A clamping boss (11) is provided on the outer side of the right end of the connecting boss (6), and a clamping groove (10) matching with the clamping boss (11) is provided on the outer side of the left end of the wear-resistant ceramic lining plate (3).

5. The curved coal unloading plowshare according to claim 1, characterized in that: The wear-resistant ceramic lining plate (3) comprises a plurality of ceramic blocks (12). Connecting rubbers (13) are provided between adjacent ceramic blocks (12) and on the inner sides of the ceramic blocks (12). The connecting rubbers (13) are fixed to the base steel plate (4) by adhesive.

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