阅读说明：本技术 用于缓倾斜煤层交叉侧卸布置方式的刮板输送机 (Scraper conveyor for cross side-dumping arrangement mode of slow inclined coal seam ) 是由 于雷 刘全明 刘亚军 杜高峰 朱永年 吴春野 康强 李占平 李立 张霜玉 于 2020-04-13 设计创作，主要内容包括：本发明公开了一种用于缓倾斜煤层交叉侧卸布置方式的刮板输送机,涉及煤矿综采设备技术领域,主要目的是使得交叉侧卸布置方式能够适用于缓倾斜煤层的综采。该刮板输送机包括溜槽,溜槽包括多个第一槽体、第二槽体和第三槽体；第一槽体和第二槽体的宽度相同且分别为第三槽体宽度的一半；二者的数量相同,三者的总宽度相同；各个第一槽体和第二槽体两侧的高度和长度分别从机头至机尾的方向分别呈等差数列依次减小；多个第三槽体的结构和尺寸大小相同,多个第一槽体和多个第二槽体中相对应位置处的第一槽体和第二槽体的结构和尺寸大小分别相同,与第三槽体相邻第一槽体和第二槽体的两侧高度和长度分别与第三槽体的两侧高度和长度相同。(The invention discloses a scraper conveyor for a cross side dumping arrangement mode of a slowly inclined coal seam, relates to the technical field of fully mechanized coal mining equipment of coal mines, and mainly aims to enable the cross side dumping arrangement mode to be suitable for fully mechanized coal mining of the slowly inclined coal seam. The scraper conveyor comprises a chute, wherein the chute comprises a plurality of first groove bodies, second groove bodies and third groove bodies; the first tank body and the second tank body have the same width and are respectively half of the width of the third tank body; the number of the two is the same, and the total width of the three is the same; the heights and the lengths of the two sides of each first groove body and the second groove body are respectively reduced in an equal difference array from the machine head to the machine tail; the structure and the size of the plurality of third groove bodies are the same, the structure and the size of the first groove bodies and the second groove bodies at the corresponding positions in the plurality of first groove bodies and the plurality of second groove bodies are respectively the same, and the height and the length of the two sides of the first groove bodies and the second groove bodies adjacent to the third groove bodies are respectively the same as the height and the length of the two sides of the third groove bodies.)

1. A scraper conveyor for a cross side-tipping arrangement of a gently sloping coal seam, comprising:

the chute comprises a plurality of first chute bodies positioned at the transition part of the machine head, a plurality of second chute bodies positioned at the transition part of the machine tail and a plurality of third chute bodies positioned in the middle;

the width of the first tank body is the same as that of the second tank body, and the width of the first tank body or the second tank body is half of that of the third tank body;

the number of the first tank bodies is the same as that of the second tank bodies, and the total width of the plurality of first tank bodies, the total width of the plurality of second tank bodies and the total width of the plurality of third tank bodies are the same;

the heights of the two sides of each first tank body are respectively reduced in an equal difference sequence from the machine head to the machine tail, and the lengths of the first tank bodies are reduced in an equal difference sequence from the machine head to the machine tail;

the heights of the two sides of each second tank body are respectively reduced in an equal difference sequence from the tail to the head, and the lengths of the first tank bodies are reduced in an equal difference sequence from the tail to the head;

the third groove bodies are identical in structure and size, the first groove bodies and the second groove bodies are arranged at corresponding positions in the second groove bodies, the height and the length of the two sides of the first groove bodies and the second groove bodies adjacent to the third groove bodies are identical in height and length of the two sides of the third groove bodies.

2. The scraper conveyor of claim 1,

the connection modes among the plurality of first groove bodies, the first groove bodies and the third groove bodies, the third groove bodies and the second groove bodies and the plurality of second groove bodies are the same;

mechanical gaps are respectively arranged between every two adjacent first groove bodies, between the first groove bodies and the third groove bodies, between the third groove bodies and the second groove bodies and between every two adjacent second groove bodies.

3. The scraper conveyor of claim 1,

the first tank body and the second tank body are respectively provided with a horizontal deflection angle and a vertical deflection angle.

4. The scraper conveyor of claim 3,

the horizontal deflection angle is +/-0.65 DEG, and the vertical deflection angle is +/-1.75 deg.

5. The scraper conveyor of claim 2,

the two adjacent first groove bodies, the first groove bodies and the third groove bodies, the third groove bodies and the second groove bodies and the plurality of second groove bodies are respectively connected through dumbbell pins.

Technical Field

The invention relates to the technical field of fully mechanized coal mining equipment, in particular to a scraper conveyor for a cross side-dumping arrangement mode of a slowly inclined coal seam.

Background

The cross side-discharging arrangement mode of the scraper conveyor can reduce the discharging height, provides convenience for end supporting and cutting through the triangular coal, can eliminate lump coal discharging obstacles, improves the conveying capacity of the scraper conveyor, can also slow down the impact of coal flow on the reversed loader, reduces the energy consumption of the reversed loader and the like, and particularly can improve the working efficiency and the safety factor when the inclination angle of a working face is large, once the working face is shifted upwards and glides, the discharging distance is kept unchanged.

However, the existing scraper conveyor cross side-discharge arrangement mode is only suitable for fully mechanized mining of nearly horizontal coal seams, and the arrangement mode of the scraper conveyor of the slowly inclined coal seam is still an end-discharge arrangement mode, and the arrangement mode has large discharge height, coal flow is vertically and directly discharged onto a reversed loader, and the impact on the reversed loader is large. And the problems of unsmooth coal unloading, coal accumulation and the like easily occur due to insufficient or overlong lap joint in the using process, particularly when the working face has upward movement and downward movement, the unloading distance is unstable, and the working efficiency and the safety factor are reduced.

Disclosure of Invention

In view of this, the embodiment of the present invention provides a scraper conveyor for a cross side dump arrangement of a slowly inclined coal seam, and mainly aims to enable the cross side dump arrangement to be applicable to fully mechanized mining of the slowly inclined coal seam.

In order to achieve the above purpose, the embodiments of the present invention mainly provide the following technical solutions:

the embodiment of the invention provides a scraper conveyor for a cross side-dumping arrangement mode of a slowly inclined coal seam, which is characterized by comprising the following components:

the chute comprises a plurality of first chute bodies positioned at the transition part of the machine head, a plurality of second chute bodies positioned at the transition part of the machine tail and a plurality of third chute bodies positioned in the middle;

the width of the first tank body is the same as that of the second tank body, and the width of the first tank body or the second tank body is half of that of the third tank body;

the number of the first tank bodies is the same as that of the second tank bodies, and the total width of the plurality of first tank bodies, the total width of the plurality of second tank bodies and the total width of the plurality of third tank bodies are the same;

the heights of the two sides of each first tank body are respectively reduced in an equal difference sequence from the machine head to the machine tail, and the lengths of the first tank bodies are reduced in an equal difference sequence from the machine head to the machine tail;

the heights of the two sides of each second tank body are respectively reduced in an equal difference sequence from the tail to the head, and the lengths of the first tank bodies are reduced in an equal difference sequence from the tail to the head;

the third groove bodies are identical in structure and size, the first groove bodies and the second groove bodies are arranged at corresponding positions in the second groove bodies, the height and the length of the two sides of the first groove bodies and the second groove bodies adjacent to the third groove bodies are identical in height and length of the two sides of the third groove bodies.

Furthermore, the connection modes among the plurality of first groove bodies, the first groove bodies and the third groove bodies, the third groove bodies and the second groove bodies and the plurality of second groove bodies are the same;

mechanical gaps are respectively arranged between every two adjacent first groove bodies, between the first groove bodies and the third groove bodies, between the third groove bodies and the second groove bodies and between every two adjacent second groove bodies.

Further, the first slot body and the second slot body respectively have a horizontal deflection angle and a vertical deflection angle.

Further, the horizontal deflection angle is ± 0.65 °, and the vertical deflection angle is ± 1.75 °.

Furthermore, the two adjacent first groove bodies, the first groove body and the third groove body, the third groove body and the second groove bodies and the plurality of second groove bodies are respectively connected through dumbbell pins.

By means of the technical scheme, the invention at least has the following beneficial effects:

the scraper conveyor for the cross side dumping arrangement mode of the slowly inclined coal seam provided by the embodiment of the invention has the advantages that the first groove bodies and the second groove bodies are respectively arranged at the head transition part and the tail transition part of the chute of the scraper conveyor, the width of the first groove bodies is the same as that of the second groove bodies, the width of the first groove bodies is half of that of the third groove bodies, the first groove bodies and the second groove bodies are the same in number, the total width of the first groove bodies, the total width of the second groove bodies and the total width of the third groove bodies are the same, so that the number of movable points between the groove bodies at the head transition part and the tail transition part is large, the vertical bending curvature radius between the groove bodies at the head transition part and the tail transition part is reduced, the vertical bending speed is accelerated, the length of a bending section is shortened, the cross side dumping arrangement applicable condition limited by the traditional groove body structure is broken through, and the applicable angle of the cross side dumping arrangement mode is improved, therefore, the cross side dumping arrangement mode of the scraper conveyor can be suitable for fully mechanized mining of the slowly inclined coal seam, the unloading height of the fully mechanized mining of the slowly inclined coal seam is reduced, impact on the reversed loader is reduced, the phenomena of unsmooth coal unloading, coal accumulation and the like caused by insufficient overlap joint or overlong overlap joint are avoided, especially when the working face is shifted upwards and slides downwards, the unloading distance can be kept unchanged, and the working efficiency and the safety factor are improved.

In addition, the heights of the two sides of each first groove body are respectively set to be sequentially reduced in an arithmetic progression from the machine head to the machine tail, and the lengths of the first groove bodies are sequentially reduced in an arithmetic progression from the machine head to the machine tail; the height of each second cell body both sides is the arithmetic progression respectively and reduces in proper order from the direction of tail to aircraft nose, and the length of each first cell body is the arithmetic progression and reduces in proper order from the direction of tail to aircraft nose, and is the arithmetic progression until with third cell body both sides height and length respectively the same for the coal-winning machine can pass through the motor that aircraft nose or tail department were arranged smoothly, and can not bump with the motor, and then has guaranteed going on smoothly of coal mining work.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of a fully mechanized mining face of a scraper conveyor for a cross side-dumping arrangement mode of a slowly inclined coal seam under an inclination angle condition according to an embodiment of the present invention;

fig. 2 is a structural schematic diagram of a matched front view of a fully mechanized mining face of a scraper conveyor for a cross side-dump arrangement mode of a gently inclined coal seam under a horizontal condition, according to an embodiment of the invention;

fig. 3 is a schematic top view of a scraper conveyor for a cross side dump arrangement of a slowly inclined coal seam in a horizontal condition, wherein the scraper conveyor is used for a fully mechanized mining face;

FIG. 4 is a schematic structural view of the first tank body in FIG. 1;

fig. 5 is a schematic cross-sectional view of the first groove body shown in fig. 4.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present embodiment, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present embodiment.

As shown in fig. 1, 2 and 3, the embodiment of the invention provides a scraper conveyor for a cross-side dumping arrangement mode of a slowly inclined coal seam, which comprises a chute 1, wherein the chute 1 comprises a plurality of first trough bodies 11 at the transition of a machine head 2, a plurality of second trough bodies (not shown in the figure) at the transition of a machine tail and a plurality of third trough bodies 12 in the middle; the width of the first tank body 11 is the same as that of the second tank body, and the width of the first tank body 11 or the second tank body is half of that of the third tank body 12; the number of the first tank bodies 11 is the same as that of the second tank bodies, and the total width of the plurality of first tank bodies 11, the total width of the plurality of second tank bodies, and the total width of the plurality of third tank bodies 12 are the same; in addition, referring to fig. 4 and 5 in combination with fig. 2, the heights of the two sides of each first trough body 11 decrease in sequence in an arithmetic progression from the head 2 to the tail, and the lengths of the first trough bodies 11 decrease in sequence in an arithmetic progression from the head 2 to the tail; the heights of the two sides of each second tank body are respectively reduced in an equal difference series from the tail to the head 2, and the lengths of the first tank bodies 11 are reduced in an equal difference series from the tail to the head 2; the structure and the size of the plurality of third tank bodies 12 are the same, the structure and the size of the first tank bodies 11 and the second tank bodies at the corresponding positions in the plurality of first tank bodies 11 and the plurality of second tank bodies are respectively the same, and the height and the length of the two sides of the first tank bodies 11 and the second tank bodies adjacent to the third tank bodies 12 are respectively the same as the height and the length of the two sides of the third tank bodies 12.

In the scraper conveyor, the widths of a first trough body 11 at the transition position of a machine head 2 and a second trough body at the transition position of a machine tail of a chute 1 are the same and are respectively half of the width of a third trough body 12 in the middle part, so that the movable points at the transition position of the machine head 2 and the transition position of the machine tail are increased, the vertical bending curvature radius between the trough bodies is reduced, the vertical bending speed is accelerated, and the length of a bending section is shortened, for example, the widths of the trough bodies at the transition position of the machine head 2 and the transition position of the machine tail in the conventional chute 1 and the middle trough body are 1750mm respectively, the widths of the first trough body 11 and the second trough body corresponding to the transition position of the machine head 2 and the transition position of the machine tail in the embodiment of the invention are 875mm respectively, the width of the third trough body 12 in the middle part is 1750mm, then, every two adjacent 1750mm trough bodies in the conventional chute 1 correspond to every four adjacent 875mm in the embodiment, and only one movable point between every, corresponding to the activity point between per four adjacent 875mm cell bodies in this embodiment has threely, that is to say, compare in 1 structure of traditional chute, the distance of per 2 times 1750mm length can increase 2 activity points in the cell body of 1 aircraft nose 2 transition department of chute and tail transition department in this embodiment, therefore, effectively reduced the perpendicular bending curvature radius between the cell body, the perpendicular bending speed has been accelerated, the suitable angle of cross side dump arrangement mode has been improved, specifically, can improve 25 degrees from 8 degrees with the angle that cross side dump is suitable for, thereby make scraper conveyor cross side dump arrangement mode can be applicable to the comprehensive mining of gently sloping coal seam well. The number of the first trough body 11 and the second trough body can be determined according to the size of the coal mining corollary equipment, specifically, the number of the first trough body 11 and the number of the second trough body can be respectively 13, and the number of the third trough body 12 can be the same as that of the middle trough of the traditional chute 1. In addition, an adjusting groove body with a certain width can be additionally arranged between the first groove body 11 and the machine head 2 and between the first groove body and the machine tail according to the size of the coal mining supporting equipment, for example, two adjusting groove bodies with the width of 1000mm are additionally arranged.

The scraper conveyor for the cross side dumping arrangement mode of the slowly inclined coal seam provided by the embodiment of the invention has the advantages that the first groove bodies 11 and the second groove bodies are respectively arranged at the transition part of the head 2 and the transition part of the tail of the scraper conveyor chute 1, the widths of the first groove bodies 11 and the second groove bodies are the same and are half of the width of the third groove body 12, the number of the first groove bodies 11 and the number of the second groove bodies are the same, the total width of the first groove bodies 11, the total width of the second groove bodies and the total width of the third groove bodies 12 are the same, so that the number of movable points between the groove bodies at the transition part of the head 2 and the transition part of the tail is large, the vertical bending curvature radius between the transition part of the head 2 and the transition part of the tail is reduced, the vertical bending speed is accelerated, the length of a bending section is shortened, and the cross side dumping applicable condition limited by the traditional groove body structure is broken through, the angle of applicability of the cross side-dumping arrangement mode is improved, so that the cross side-dumping arrangement mode of the scraper conveyor can be applicable to fully-mechanized mining of a slowly inclined coal bed, the unloading height of the fully-mechanized mining of the slowly inclined coal bed is reduced, the impact on a reversed loader is reduced, the phenomena of unsmooth coal unloading, coal accumulation and the like caused by insufficient or overlong overlap joint are avoided, especially when a working face is shifted upwards and slides downwards, the unloading distance can be kept unchanged, and the working efficiency and the safety factor are improved.

In addition, by setting the heights of both sides of each first tank body 11 to be respectively reduced in an arithmetic progression from the head 2 to the tail, the lengths of the first tank bodies 11 are sequentially reduced in an arithmetic progression from the head 2 to the tail; the height of each second cell body both sides is the arithmetic progression respectively and reduces in proper order from the tail to the direction of aircraft nose 2, and the length of each first cell body 11 is the arithmetic progression and reduces in proper order from the tail to the direction of aircraft nose 2, and is the arithmetic progression until being the same with third cell body 12 both sides height and length respectively for the coal-winning machine can be smoothly through the motor that aircraft nose 2 or tail department arranged, and can not bump with the motor, and then has guaranteed going on smoothly of coal mining work.

In an alternative embodiment, the connection modes between the plurality of first tanks 11, between the first tank 11 and the third tank 12, between the third tank 12 and the second tank, and between the plurality of second tanks may be the same; and mechanical gaps can be respectively reserved between two adjacent first groove bodies 11, between the first groove bodies 11 and the third groove bodies 12, between the third groove bodies 12 and the second groove bodies and between two adjacent second groove bodies, so that enough movement between the two adjacent groove bodies is ensured, the bending curvature radius is reduced, the curvature is increased, and the applicable angle of the cross side-dumping arrangement mode is further improved. Specifically, two adjacent first slot bodies 11, first slot bodies 11 and third slot bodies 12, third slot bodies 12 and second slot bodies, and a plurality of second slot bodies may be connected by dumbbell pins.

In an optional embodiment, the first tank body 11 and the second tank body may have a horizontal deflection angle and a vertical deflection angle, respectively, that is, when one tank body is fixed, the other tank body may perform vertical movement or horizontal movement at a certain angle with respect to the tank body, so as to form a smaller curvature radius in the vertical direction, increase the curvature, and further improve the applicable angle of the cross side-discharge arrangement mode. Wherein the horizontal deflection angle and the vertical deflection angle may be determined according to the mechanical gap size. Specifically, the horizontal deflection angle of the first tank 11 and the second tank may be ± 0.65 °, and the vertical deflection angle may be ± 1.75 °.

The present invention will be specifically described below with reference to a specific example.

Taking a certain mine in the middle of Russia as an example, the minimum buried depth of the coal seam mined by the mine is 300m, the thickness of the coal seam is 1.32-3.84 m, and the inclination angle is +/-25 degrees; the direct top is siltstone, and f is 4-6; basically, the top is sandstone, and f is 6-8; the direct bottom is siltstone, and f is 4-6. Adopts the strike longwall comprehensive mechanized mining. The two gate roads of the fully mechanized mining face are both rectangular, the width of the transportation gate road is 5.1m, the height of the transportation gate road is 3.6m, and the method can be seen in a figure 1, a figure 2 and a figure 3.

The vertical deflection angle of the first trough body 11 and the second trough body (875 mm multiplied by 1000mm multiplied by 310mm) with the width of 875mm is +/-1.75 degrees, the vertical deflection angle of the third trough body 12 (1750 mm multiplied by 1000mm multiplied by 310mm) with the width of 1750mm is upwards 3.3 degrees and downwards 3 degrees, and the bending curvature radius formed in the vertical direction is smaller relative to the deflection angle of a 1750mm conventional trough, so that the working face cross side dumping mode when the inclination angle is larger can be better adapted. The scraper conveyor cross side dumping structure and reversed loader lap joint are realized by arranging 13 first groove bodies 11 and second groove bodies with the width of 875mm and 2 adjusting groove bodies (specification: 1000 multiplied by 310mm) with the width of 1000mm at the transition position of a scraper conveyor head 2. The dip angle of the underground coal seam is about 22 degrees basically during the trial production period, the industrial test result achieves the expected design target, and the application effect is good.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.