CN116374505A

CN116374505A - Middle groove structure

Info

Publication number: CN116374505A
Application number: CN202310424716.3A
Authority: CN
Inventors: 程梦远; 杜奇; 毕冬冬; 周晨辉; 吴桂陈; 陈良
Original assignee: Shendong Coal Branch of China Shenhua Energy Co Ltd; Guoneng Shendong Coal Group Co Ltd
Current assignee: Shendong Coal Branch of China Shenhua Energy Co Ltd; Guoneng Shendong Coal Group Co Ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-07-04

Abstract

The invention provides a middle groove structure and a replacing method, which are used for replacing a middle plate part in the middle groove structure, and comprise two ledge bodies, wherein the two ledge bodies are arranged in parallel; the middle plate members are sequentially distributed at intervals along the extending direction of the ledge main body, and each middle plate member is used for bearing materials; wherein the length of each middle plate member in the extending direction of the ledge body is less than or equal to two-thirds of the length of the ledge body in the extending direction thereof. The problem that the replacing process of the middle plate in the middle groove in the prior art is too complex is solved.

Description

Middle groove structure

Technical Field

The invention relates to the field of coal mine machinery, in particular to a middle groove structure.

Background

The scraper conveyor is main conveying equipment of the coal mine comprehensive coal mining complete equipment, and comprises scraper chains, a middle groove, a machine head part, a machine tail part and the like. The most power consumption of scraper conveyor is in friction in-process when no load, and the failure mode of middle part groove is mainly the wearing and tearing of medium plate and scraper chain contact portion, and the foremost wearing and tearing position of middle part groove is middle part inslot board chain way department, and the chain way repair welding is the biggest work load of maintenance middle part groove yet.

At present, when the middle plate of the middle groove is replaced, an integral segmentation mode is adopted, the left ledge and the right ledge of the middle groove are welded with channel steel respectively to serve as lacing wires, positioning and deformation-preventing rigidity fixing functions are achieved, a carbon arc gouging machine is used, the integral middle plate is gouged, the wear-resistant steel plate with the same strength is used as the middle plate, because the distance between the middle plate and the back cover plate is smaller, a welding gun cannot fully extend into a welding line to weld, the integral back cover plate is required to gouging, all welding lines of the middle plate are exposed, the middle plate and the ledge welding lines are welded according to a specified welding sequence, the back cover plate is welded, and heat preservation treatment is completed. However, the whole replacement and maintenance procedure is complicated, and after the middle plate is welded, the bottom sealing plate is required to be subjected to repair welding, so that cracks are easy to occur, and the risk of cracking is increased.

Disclosure of Invention

The invention mainly aims to provide a middle groove structure so as to solve the problem that the replacing process of a middle plate in a middle groove in the prior art is too complex.

In order to achieve the above object, the present invention provides a middle tank structure, comprising two tank wall bodies, wherein the two tank wall bodies are arranged in parallel; the middle plate members are sequentially distributed at intervals along the extending direction of the ledge main body, and each middle plate member is used for bearing materials; wherein the length of each middle plate member in the extending direction of the ledge body is less than or equal to two-thirds of the length of the ledge body in the extending direction thereof.

Further, each middle plate member is provided with a second bevel which is arranged towards the other middle plate member, and the second bevel is an inclined surface inclined to the horizontal plane.

Further, in the adjacent two middle plate members, a third weld is formed between the second groove of one middle plate member and the second groove of the other middle plate member, so that the connection between the adjacent two middle plate members is realized by welding the third weld.

Further, each ledge body comprises a ledge, the ledge is an upper ledge and a lower ledge which are sequentially arranged along the vertical direction, the upper ledge is positioned above the lower ledge, and the opposite sides of each middle plate part are connected with the corresponding ledge bodies through the corresponding upper ledges.

Further, each middle plate part is provided with a first groove arranged towards the upper ledge, and the first groove comprises an upper break and a lower break so as to be respectively connected with the side wall of the corresponding upper ledge through the upper groove and the lower groove.

Further, gaps formed between the upper groove and the lower groove and the upper ledge are respectively a first welding seam and a second welding seam, so that the first welding seam and the second welding seam are sequentially welded respectively, and connection between the plurality of middle plate members and the two ledge bodies is completed.

Further, each ledge body is provided with a first accommodating cavity, and the first accommodating cavities are arranged above the upper ledge body so as to form a first accommodating space through the first accommodating cavities in the two ledge bodies and the upper surfaces of the plurality of middle plate members, and the first accommodating space is used for accommodating materials.

Further, the middle groove structure further comprises a bottom plate component, opposite sides of the bottom plate component are connected with the lower ledge of the two ledge bodies in a one-to-one correspondence mode, and the bottom plate component is used for supporting a scraper chain after unloading materials.

Further, a second accommodating cavity is further formed in the ledge body and located between the lower ledge and the upper ledge, so that a second accommodating space is formed among the second accommodating cavities of the two ledge bodies, the upper surfaces of the bottom plate members and the lower surfaces of the plurality of middle plate members, and the scraper chain after unloading is accommodated through the second accommodating space.

Further, the middle plate member is two; or the number of the middle plate members is more than two, and the lengths of the middle plate members are sequentially reduced along the extending direction of the ledge main body.

By applying the technical scheme of the invention, the two ledge main bodies are arranged in parallel to each other so as to be respectively connected with the two ledge main bodies through the middle plate member, and the middle plate member is supported by the ledge main bodies to bear materials. Because scraper conveyor when transporting the material, scraper chain drives the transportation of material on the medium plate part, scraper chain and material last long-time friction at the upper surface of medium plate part to make the condition that the medium plate part appears wearing and tearing damage, need change the medium plate part. Therefore, a plurality of middle plate members are arranged, and the plurality of middle plate members are sequentially distributed at intervals along the extending direction of the ledge main body; wherein the length of each middle plate member along the extending direction of the ledge body is less than or equal to two-thirds of the length of the ledge body along the extending direction thereof; the arrangement is that the bottom plate part does not need to be disassembled, so that two adjacent middle plate parts are welded in sequence respectively to finish the replacement of the middle part groove structure; the problem that the replacing process of the middle plate of the middle groove in the prior art is too complex is solved. Meanwhile, the middle groove has simple structure, is easy to process and has good performance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 shows a schematic perspective view of a mid-tank structure provided in accordance with an embodiment of the present invention;

FIG. 2 illustrates a schematic top view of a mid-tank structure provided in accordance with an embodiment of the present invention;

FIG. 3 illustrates a schematic view of a first ledge of a mid-tank structure coupled to a midplane component, in accordance with an embodiment of the present invention;

fig. 4 shows a schematic connection of two adjacent midplane members of a midplane structure provided in accordance with an embodiment of the invention.

Wherein the above figures include the following reference numerals:

1. a ledge body; 2. a ledge; 3. a first ledge; 4. a second ledge; 5. a first accommodation chamber; 6. a second accommodation chamber;

10. a middle plate member; 11. a first groove; 110. a groove is formed; 111. a lower groove; 12. a second groove;

13. a first weld; 14. a second weld; 15. a third weld; 16. a second accommodation space; 20. a base plate member.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 4, the present invention provides a middle tank structure including a ledge body 1 and a middle plate member 10. The ledge body 1 has two, two ledge bodies 1 are arranged parallel to each other to be connected with the two ledge bodies 1 respectively by means of the middle plate member 10 to support the middle plate member 10 by means of the ledge bodies 1 for carrying the material. The plurality of middle plate members 10 are arranged, the plurality of middle plate members 10 are sequentially and alternately distributed along the extending direction of the ledge main body 1, and each middle plate member 10 is used for bearing materials; wherein, the length of each middle plate member 10 along the extending direction of the ledge main body 1 is less than or equal to two thirds of the length of the ledge main body 1 along the extending direction thereof, which is arranged so as to be convenient for disassembling and replacing one middle plate member 10 when the middle plate member 10 is damaged, without disassembling all the middle plate members 10; alternatively, when replacing all of the middle plate members 10, it is not necessary to disassemble the bottom plate member 20 to sequentially disassemble and weld the adjacent two middle plate members 10 to complete the replacement of the middle groove structure.

In order to obtain higher welding quality and improve welding efficiency, each middle plate member 10 is provided with a second bevel 12 disposed toward the other middle plate member 10, and the second bevel 12 is an inclined surface inclined to the horizontal plane, so that the connection between two adjacent middle plate members 10 is realized by welding the second bevel 12 of the two adjacent middle plate members 10.

Specifically, the second groove 12 is a V-groove, that is, the ends of the two adjacent middle plate members 10 on the same side are each provided with a chamfer, so that the two adjacent middle plate members 10 are connected by welding the two chamfers.

As shown in fig. 1 and 4, in order to achieve connection of two adjacent middle plate members 10 by welding the second groove 12, a third weld 15 is formed between the second groove 12 of one middle plate member 10 and the second groove 12 of the other middle plate member 10 in the two adjacent middle plate members 10, so that connection between the two adjacent middle plate members 10 is achieved by welding the third weld 15, so that the second groove 12 of the two adjacent middle plate members 10 is melted and fused together by welding the third weld 15, to achieve connection between the two adjacent middle plate members 10.

As shown in fig. 1, each ledge body 1 includes a ledge 2, the ledge 2 is a first ledge 3 and a second ledge 4 sequentially arranged along a vertical direction, the first ledge 3 is located above the second ledge 4, opposite sides of each middle plate member 10 are connected with the corresponding ledge body 1 through the corresponding first ledge 3, so as to realize connection between the middle plate members 10 and the ledge body 1 by disassembling and welding between the plurality of middle plate members 10 and the first ledge 3.

Further, in order to facilitate connection between each middle plate member 10 and the ledge body 1 and improve welding quality between the middle plate member 10 and the first ledge 3, as shown in fig. 3, each middle plate member 10 is provided with a first groove 11 disposed toward the first ledge 3, and the first groove 11 includes an upper break and a lower break to be connected with the corresponding side wall of the first ledge 3 through the upper groove 110 and the lower groove 111, respectively, so as to achieve connection between each middle plate member 10 and the first ledge 3 by welding the upper groove 110 and the lower groove 111, respectively.

Specifically, the first groove 11 is a K-shaped groove, that is, two chamfers are respectively provided at one end of each middle plate member 10 facing the first ledge 3, and the two chamfers are an upper groove 110 and a lower groove 111, so that the upper groove 110 and the lower groove 111 are welded with the corresponding side wall of the first ledge 3 respectively, so as to realize connection between each middle plate member 10 and the first ledge 3.

In order to facilitate the connection between each middle plate member 10 and the first ledge 3 by welding the upper bevel 110 and the lower bevel 111, respectively, the gaps formed between the upper bevel 110 and the lower bevel 111 and the first ledge 3 are the first weld 13 and the second weld 14, respectively, so that the connection between the plurality of middle plate members 10 and the two ledge bodies 1 is completed by sequentially welding the first weld 13 and the second weld 14, respectively.

As shown in fig. 1, in order to facilitate carrying and accommodating of the scraper chain and the materials, so as to realize transporting of the materials by the scraper chain, a first accommodating cavity 5 is arranged on each ledge main body 1, the first accommodating cavity 5 is arranged above the first ledge 3, so that a first accommodating space is formed between the first accommodating cavities 5 on two ledge main bodies 1 and the upper surfaces of the plurality of middle plate members 10, and the materials are accommodated by the first accommodating space; the scraper chain consists of a scraper and a chain, and the chain drives the scraper to drive materials to be transported along the extending direction of the ledge main body 1 in the first accommodating space.

Further, the middle groove structure further comprises a bottom plate part 20, opposite sides of the bottom plate part 20 are connected with the second ledge 4 of the two ledge bodies 1 in a one-to-one correspondence, and the bottom plate part 20 is used for supporting a scraper chain after unloading materials.

In order to facilitate carrying and accommodating the scraper chain after unloading materials, a second accommodating cavity 6 is further arranged on the ledge main body 1, the second accommodating cavity 6 is positioned between the second ledge 4 and the first ledge 3, so that a second accommodating space 16 is formed among the second accommodating cavities 6 of the two ledge main bodies 1, the upper surfaces of the bottom plate parts 20 and the lower surfaces of the plurality of middle plate parts 10, and the scraper chain after unloading is accommodated by the second accommodating space 16; wherein the scraper chain sequentially passes through the first accommodating space to transport the materials, then enters the second accommodating space 16, and then sequentially enters the first accommodating space, so that the materials are continuously unloaded in the circulation.

One embodiment of the invention is: the middle plate members 10 are two, one middle plate member 10 is two thirds long and the other middle plate member 10 is one third long, so that the connection between the two middle plate members 10 and the two ledge bodies 1 is completed by sequentially welding a first welding seam 13 and a second welding seam 14 between the two middle plate members 10 and the first ledge 3 respectively and then welding a third welding seam 15 between the two middle plate members 10.

Another embodiment of the invention is: the number of middle plate members 10 is greater than two, and the lengths of the plurality of middle plate members 10 are sequentially reduced along the extending direction of the ledge body 1 to complete the connection between the two adjacent middle plate members 10 and the two ledge bodies 1 by sequentially welding the first welds 13 and the second welds 14 between the two adjacent middle plate members 10 and the first ledge 3, respectively, and then welding the third welds 15 between the two adjacent middle plate members 10.

The method for replacing the middle groove structure in the invention is to complete the replacing process of the middle groove structure by welding a plurality of middle plate members 10 in the middle groove structure.

When the number of the middle plate members 10 is two, the replacement method is as follows: firstly, disassembling a middle plate member 10 with the length of two thirds damaged by using an air gouging technology, then correspondingly replacing the middle plate member 10, and welding first welding seams 13 between two opposite sides of the middle plate member and the first ledge 3; the MAG welding method is adopted to perform backing welding on the first welding seam 13, then filling welding is performed, and a multi-layer and multi-channel welding mode is adopted to ensure that the first grooves 11 on two sides have certain penetration and the welding bead is flat. At this time, the middle plate member 10 with the remaining length of one third damaged is disassembled, and at the same time, the space after the middle plate member 10 with one third damaged is utilized, so that the welding gun extends into the second welding seam 14 of the two thirds middle plate member 10 and the first ledge 3 to finish the welding of the second welding seam 14, and then the third welding seam 15 between the welding seam of the middle plate member 10, the second welding seam 14 and the two middle plate members 10 is finished, so as to finish the replacing process of the middle groove structure. It can be seen that the base plate member 20 does not need to be disassembled during the entire replacement process, so as to solve the problem of excessively complicated replacement process in the prior art.

When the number of the middle plate members 10 is greater than two, the replacement method is as follows: the lengths of the middle plate members 10 are sequentially reduced in the extending direction of the ledge body 1, and the two adjacent middle plate members 10 are sequentially replaced and welded by the above-described replacement method to complete replacement of the plurality of middle plate members 10.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mid-tank structure for containing a material, the mid-tank structure comprising:

the ledge body (1), the ledge body (1) has two, two said ledge bodies (1) are parallel to each other;

the plurality of middle plate members (10) are arranged, the plurality of middle plate members (10) are sequentially distributed at intervals along the extending direction of the ledge main body (1), and each middle plate member (10) is used for bearing materials;

wherein the length of each of the middle plate members (10) in the extending direction of the ledge body (1) is less than or equal to two thirds of the length of the ledge body (1) in the extending direction thereof.

2. A mid-groove structure according to claim 1, characterized in that each of said middle plate members (10) is provided with a second bevel (12) provided toward the other of said middle plate members (10), said second bevel (12) being an inclined surface inclined to the horizontal.

3. The middle groove structure according to claim 2, characterized in that in adjacent two of the middle plate members (10), a third weld (15) is formed between the second groove (12) of one middle plate member (10) and the second groove (12) of the other middle plate member (10) to achieve connection between adjacent two middle plate members (10) by welding the third weld (15).

4. The middle groove structure according to claim 1, wherein each of the ledge bodies (1) includes a ledge (2), the ledge (2) is a first ledge (3) and a second ledge (4) sequentially arranged along a vertical direction, the first ledge (3) is located above the second ledge (4), and opposite sides of each of the middle plate members (10) are connected with the corresponding ledge bodies (1) through the corresponding first ledge (3).

5. The middle groove structure according to claim 4, wherein each of the middle plate members (10) is provided with a first groove (11) provided toward the first ledge (3), and the first groove (11) includes an upper groove (110) and a lower groove (111) so as to be connected to the side wall of the corresponding first ledge (3) through the upper groove (110) and the lower groove (111), respectively.

6. The mid-tank structure according to claim 5, wherein gaps formed between the upper bevel (110) and the lower bevel (111) and the first ledge (3) are respectively a first weld (13) and a second weld (14) to complete the connection between the plurality of middle plate members (10) and the two ledge bodies (1) by welding the first weld (13) and the second weld (14) in sequence, respectively.

7. The middle groove structure according to claim 4, wherein each ledge body (1) is provided with a first accommodating cavity (5), and the first accommodating cavities (5) are arranged above the first ledges (3) so as to form a first accommodating space through the upper surfaces of the plurality of middle plate members (10) and the first accommodating cavities (5) on the two ledge bodies (1).

8. A mid-tank structure according to claim 4, characterized in that it further comprises a bottom plate member (20), opposite sides of the bottom plate member (20) being connected to the second ledge (4) of two ledge bodies (1) in a one-to-one correspondence, the bottom plate member (20) being adapted to support a scraper chain after unloading of material.

9. The middle tank structure according to claim 8, wherein a second accommodating chamber (16) is further provided on the ledge body (1), and the second accommodating chamber (16) is located in the middle of the second ledge (4) and the first ledge (3) so as to form a second accommodating space (16) between the second accommodating chambers (16) of the two ledge bodies (1), the upper surfaces of the bottom plate members (20) and the lower surfaces of the plurality of middle plate members (10) to accommodate the scraper chain after unloading through the second accommodating space (16).

10. The mid-tank structure of any one of claims 1 to 9 wherein,

the number of the middle plate parts (10) is two; or alternatively

The number of the middle plate members (10) is larger than two, and the lengths of the middle plate members (10) are sequentially reduced along the extending direction of the ledge main body (1).