Wear-resistant ledge of middle trough of scraper conveyer

Abstract

The utility model relates to the technical field of scraper conveyor middle troughs, in particular to a scraper conveyor middle trough wear-resistant ledge which comprises an upper coal shoveling ledge, a lower coal shoveling ledge is arranged on the lower surface of the upper coal shoveling ledge, a first fastening block is arranged on the outer surface of the upper coal shoveling ledge, and a middle plate body is arranged on the surface of the right side of the first fastening block. The plasma cladding wear-resistant layer is used for cladding wear-resistant alloy powder on the top surface of the middle plate body by adopting a plasma cladding technology, and a tongue plate is arranged at the front end of the middle plate body. According to the utility model, the fixed ring is used for connection, the plunger and the brazing are used for fixation, then the wear-resisting plate with the inner nest profiling structure of the plasma cladding wear-resisting layer is used for installation and use, the thin wear-resisting plates with different thicknesses are coated according to different wear thicknesses and sizes of the inner nest of the ledge, the original size of the inner nest of the ledge is recovered, and the service life of the ledge is prolonged. And the thin wear-resisting plate and the worn ledge inner nest are fixedly combined in a plunger welding and brazing manner.

Description

Technical Field

[0001] The utility model relates to the technical field of a scraper conveyor middle trough, in particular to a wear-resistant trough side of a scraper conveyor middle trough. Background Art

[0002] The middle trough of the scraper conveyor is mainly used for scraper conveyors and transfer machines in coal mines. The middle trough of the scraper conveyor is the body of the scraper conveyor, which is composed of the middle plate and the trough side. The upper trough is used to transport coal and the lower trough is used for the return of the scraper chain. It is not only the running track of the scraper chain, but also the running track of the coal mining machine and the running channel of the coal.

[0003] During the use of the middle trough underground, the inner socket of the middle trough is severely worn due to factors such as scrapers, coal blocks, and gangue, and even worn out and scrapped. The groove side of the middle trough is conventionally made of casting. On the one hand, the groove side needs to be scrapped as a whole due to severe wear, wasting steel resources and increasing the cost of purchasing new parts. On the other hand, the thickness of the inner socket of the groove side is uneven due to the different degrees of wear, which increases the difficulty of subsequent maintenance and makes it difficult to ensure the quality and size requirements of the inner socket of the groove side after maintenance. At the same time, the bottom plate of the existing middle trough is unstable during installation. Therefore, it has become an urgent problem to be solved to improve and perfect the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide a wear-resistant groove wall of the middle trough of a scraper conveyor, so as to solve the problem that the inner nest of the middle trough is seriously worn out or even scrapped due to factors such as scrapers, coal blocks and gangue in the middle trough proposed in the above-mentioned background technology during use underground. The groove wall of the middle trough is conventionally made of casting. On the one hand, the groove wall needs to be scrapped as a whole due to severe wear, which wastes steel resources and increases the cost of purchasing new parts. On the other hand, the thickness that needs to be repaired is uneven due to the different degrees of wear of the inner nest of the groove wall, which increases the difficulty of later maintenance and makes it difficult to ensure the quality and size requirements of the inner nest of the groove wall after maintenance. At the same time, the bottom plate of the existing middle trough is unstable during installation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant trough side of a scraper conveyor middle trough, comprising an upper shovel coal trough side, a lower shovel coal trough side is arranged on the lower surface of the upper shovel coal trough side, a first fastening block is arranged on the outer surface of the upper shovel coal trough side, and a middle plate body is arranged on the right side surface of the first fastening block;

[0006] A plasma cladding wear-resistant layer is provided, wherein the plasma cladding wear-resistant layer is formed by cladding wear-resistant alloy powder on the top surface of the middle plate body using plasma cladding technology, a tongue plate is provided at the front end of the middle plate body, a mounting block is provided at the back of the middle plate body, a second fastening block is provided at the right side surface of the middle plate body, a fixing ring is provided at the right side surface of the second fastening block, and an upper baffle groove is provided at the end of the second fastening block away from the middle plate body.

[0007] Preferably, a lower baffle plate groove side is provided on the lower surface of the upper baffle plate groove side, and a bottom block is provided on the left side surface of the lower baffle plate groove side.

[0008] Preferably, a through hole is formed on the top surface of the bottom block, and a plug post is disposed inside the through hole.

[0009] Preferably, a bottom plate is provided at one end of the plug post away from the bottom block, and the lower surface of the bottom plate abuts against the upper surface of the bottom block.

[0010] Preferably, a thin wear-resistant plate is provided on the right side surface of the upper coal chute side, an adaptive wear-resistant layer is provided on the right side surface of the thin wear-resistant plate, and a coal shoveling plate is provided on the left side surface of the upper coal chute side.

[0011] Preferably, the front and rear surfaces of the thin wear-resistant plate are both fixedly connected with side blocks, and the left surface of the side block is fixedly connected with a limiting block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The wear-resistant trough side of the middle trough of the scraper conveyor is provided with an upper shovel coal trough side, a lower shovel coal trough side, a first fastening block, a middle plate body, a plasma cladding wear-resistant layer, a tongue plate, a mounting block, a second fastening block, a fixing ring, an upper baffle trough side and a lower baffle trough side. When in use, firstly, the first fastening block and the second fastening block are respectively brought into contact with the inner walls of the upper shovel coal trough side and the upper baffle trough side, and then connected through the fixing ring, and fixed by a plunger and brazing, with a good overall fixing effect. Then, the wear-resistant plate with an inner nest profiling structure of the plasma cladding wear-resistant layer is installed and used. Different thicknesses are selected according to the well working conditions to facilitate rapid replacement and maintenance in the later stage, to protect the upper shovel coal trough side and the upper baffle trough side from wear, to have a good overall protection effect, and at the same time, a better wear-resistant effect is achieved, which reflects the practicality of the design.

[0014] 2. The wear-resistant trough side of the scraper conveyor in the middle trough is provided with a bottom block, a through hole, a plug column, a bottom plate, a thin wear-resistant plate, a wear-resistant layer, a side block, a limit block and a coal shovel plate. When in use, firstly, a thin wear-resistant plate and a wear-resistant layer are installed at the inner recesses of the upper shovel coal trough side and the upper baffle trough side. The thin wear-resistant plate and the matching wear-resistant layer can have a strong inner film effect at the same time. Then, the back side of the limit block will contact the front surface of the upper shovel coal trough side, and the upper shovel coal trough side can be wrapped and installed as a whole. The design of the side block and the limit block can have a good protective effect. At the same time, the stability is strong after installation. It is fixed by using a plunger and brazing, and then the bottom block and the bottom plate can be installed by inserting the plug into the inside of the through hole. At this time, the left and right ends of the bottom plate are installed on the inner walls of the upper coal shovel chute and the lower baffle chute, with good stability. When the coal shovel chute and the baffle chute are severely worn, with the help of the original easily worn chute, thin wear-resistant plates of different thicknesses are covered according to the different wear thicknesses of the inner nests of the chute to restore the original size of the inner nests of the chute, and the thin wear-resistant plates and the worn inner nests of the chute are fixed and combined by plunger welding and brazing, which reflects the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the structure of the middle plate body and the plasma cladding wear-resistant layer of the utility model;

[0017] Figure 3 It is a schematic diagram of the disassembly of the bottom block and bottom plate structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the disassembly of the upper coal chute side and the thin wear-resistant plate structure of the utility model.

[0019] In the figure: 1. Upper shovel coal chute side; 2. Lower shovel coal chute side; 3. First fastening block; 4. Middle plate body; 5. Plasma cladding wear-resistant layer; 6. Tongue plate; 7. Mounting block; 8. Second fastening block; 9. Fixing ring; 10. Upper baffle plate chute side; 11. Lower baffle plate chute side; 12. Bottom block; 13. Through hole; 14. Insert column; 15. Bottom plate; 16. Thin wear-resistant plate; 17. Adaptive wear-resistant layer; 18. Side block; 19. Limit block; 20. Coal shovel plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 , an embodiment provided by the utility model:

[0022] A wear-resistant trough side of a scraper conveyor middle trough, wherein the upper shovel coal trough side 1, the lower shovel coal trough side 2, the middle plate body 4, the plasma cladding wear-resistant layer 5, the upper baffle trough side 10 and the lower baffle trough side 11 used in the present application are all products that can be directly purchased on the market, and their principles and connection methods are all prior arts well known to those skilled in the art, so they will not be repeated here, including an upper shovel coal trough side 1, the lower surface of the upper shovel coal trough side 1 is provided with a lower shovel coal trough side 2, the outer surface of the upper shovel coal trough side 1 is provided with a first fastening block 3, and the right side surface of the first fastening block 3 A middle plate body 4 is provided, a thin wear-resistant plate 16 is provided on the right side surface of the upper shovel coal chute side 1, an adaptive wear-resistant layer 17 is provided on the right side surface of the thin wear-resistant plate 16, a coal shoveling plate 20 is provided on the left side surface of the upper shovel coal chute side 1, and the front and rear surfaces of the thin wear-resistant plate 16 are fixedly connected with side blocks 18, and the left side surface of the side block 18 is fixedly connected with a limited block 19. First, the thin wear-resistant plate 16 and the adaptive wear-resistant layer 17 are installed at the inner recesses of the upper shovel coal chute side 1 and the upper baffle chute side 10, and the thin wear-resistant plate 16 and the wear-resistant layer 17 can simultaneously have The back of the limit block 19 will contact the front surface of the upper shovel coal chute 1, and the upper shovel coal chute 1 can be wrapped and installed as a whole. The design of the side block 18 and the limit block 19 can have a good protection effect. At the same time, the stability after installation is strong. It is fixed by using a plunger and brazing. Then, the bottom block 12 and the bottom plate 15 can be installed by inserting the plug 14 into the inside of the through hole 13. At this time, the left and right ends of the bottom plate 15 are installed in the inner part of the upper shovel coal chute 1 and the lower baffle chute 11. The wall has good stability. When the coal shovel chute side and the baffle chute side are seriously worn, the original easily worn chute side is covered with thin wear-resistant plates 16 of different thicknesses according to the different wear thicknesses of the inner grooves of the chute side to restore the size of the original inner grooves of the chute side. The thin wear-resistant plates 16 and the worn inner grooves of the chute side are fixedly combined by plunger welding and brazing. The upper shovel coal chute side 1 and the lower shovel coal chute side 2 are integrally forged and produced. Similarly, the baffle chute side 10 and the lower baffle chute side 11 are also integrally forged and produced, and the overall fixing effect is good.

[0023] Plasma cladding wear-resistant layer 5, plasma cladding wear-resistant layer 5 adopts plasma cladding technology to clad wear-resistant alloy powder on the top surface of middle plate body 4, tongue plate 6 is provided at the front end of middle plate body 4, mounting block 7 is provided at the back of middle plate body 4, second fastening block 8 is provided at the right side surface of middle plate body 4, fixing ring 9 is provided at the right side surface of second fastening block 8, upper baffle groove 10 is provided at the end of second fastening block 8 away from middle plate body 4, lower baffle groove 11 is provided at the lower surface of upper baffle groove 10, bottom block 12 is provided at the left side surface of lower baffle groove 11, through hole 13 is provided at the top surface of bottom block 12, plug column 14 is provided inside of through hole 13, bottom plate 15 is provided at the end of plug column 14 away from bottom block 12, bottom plate 15 is abutted against the upper surface of bottom block 12, firstly, by respectively fastening first fastening block 3 and second fastening block 8 with upper shovel coal chute 1 It contacts the inner wall of the upper baffle groove side 10 and is then connected through a fixing ring 9. It is fixed by a plunger and brazing, and the overall fixing effect is good. Then, the inner nest contour structure wear-resistant plate of the plasma cladding wear-resistant layer 5 is installed and used. Different thicknesses are selected according to the well working conditions to facilitate rapid replacement and maintenance in the later stage, and the upper shovel coal groove side 1 and the upper baffle groove side 10 are protected from wear. The overall protection effect is good. The plasma cladding wear-resistant layer 5 and the thin wear-resistant plate 16 use 5~10mm low-alloy steel as the substrate. The surface of the substrate is prepared by powder surfacing method. The 5~10mm wear-resistant layer 17, the composition of the wear-resistant alloy powder is: Cr: 25%~40%, Ni: 1%~5%, C: 3%~6%, Si: 1%~5%, Mn: 1%~8%, V: 1~8%, Mo: 1~5%, W: 0.5~3.5%.

[0024] Working principle: When in use, firstly, the first fastening block 3 and the second fastening block 8 are respectively brought into contact with the inner walls of the upper shovel coal chute side 1 and the upper baffle chute side 10, and then connected through the fixing ring 9, and fixed by means of plunger and brazing, and the overall fixing effect is good, and then the wear-resistant plate of the inner nest profiling structure of the plasma cladding wear-resistant layer 5 is installed and used, and different thicknesses are selected according to the well working conditions, which is convenient for rapid replacement and maintenance in the later stage, and the upper shovel coal chute side 1 and the upper baffle chute side 10 are protected from wear, and the thin wear-resistant plate 16 and the matching wear-resistant layer 17 are installed at the inner nest of the upper shovel coal chute side 1 and the upper baffle chute side 10, and the thin wear-resistant plate 16 and the adaptive wear-resistant layer 17 can have a strong inner membrane effect at the same time, and then the back of the limit block 19 will contact the front surface of the upper shovel coal chute side 1, and the upper shovel coal chute side 1 can be wrapped and installed as a whole. The design of the side block 18 and the limit block 19 can have a better protection effect. At the same time, the stability after installation is strong. It is fixed by using a plunger and brazing, and then the bottom block 12 and the bottom plate 15 can be installed by inserting the column 14 into the inside of the through hole 13. At this time, the left and right ends of the bottom plate 15 are both installed on the inner walls of the upper shovel coal chute side 1 and the lower baffle chute side 11. The above is all the working principles of the present invention.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A wear-resistant trough side of a scraper conveyor middle trough, comprising an upper shovel coal trough side (1), wherein a lower shovel coal trough side (2) is provided on the lower surface of the upper shovel coal trough side (1), characterized in that: The outer surface of the upper shovel coal chute side (1) is provided with a first fastening block (3), and the right side surface of the first fastening block (3) is provided with a middle plate body (4); A plasma cladding wear-resistant layer (5), wherein the plasma cladding wear-resistant alloy powder is clad on the top surface of a middle plate body (4) using a plasma cladding technique, a tongue plate (6) is provided at the front end of the middle plate body (4), a mounting block (7) is provided at the back of the middle plate body (4), a second fastening block (8) is provided on the right side surface of the middle plate body (4), a fixing ring (9) is provided on the right side surface of the second fastening block (8), and an upper baffle groove (10) is provided at the end of the second fastening block (8) away from the middle plate body (4).

2. The wear-resistant groove side of the middle groove of a scraper conveyor according to claim 1, characterized in that: A lower baffle plate groove side (11) is provided on the lower surface of the upper baffle plate groove side (10), and a bottom block (12) is provided on the left side surface of the lower baffle plate groove side (11).

3. The wear-resistant groove side of the middle groove of a scraper conveyor according to claim 2, characterized in that: A through hole (13) is provided on the top surface of the bottom block (12), and an insertion column (14) is arranged inside the through hole (13).

4. The wear-resistant groove side of the middle groove of a scraper conveyor according to claim 3, characterized in that: A bottom plate (15) is provided at one end of the plug post (14) away from the bottom block (12), and the lower surface of the bottom plate (15) abuts against the upper surface of the bottom block (12).

5. The wear-resistant groove side of the middle groove of a scraper conveyor according to claim 1, characterized in that: A thin wear-resistant plate (16) is provided on the right side surface of the upper coal chute side (1), an adaptable wear-resistant layer (17) is provided on the right side surface of the thin wear-resistant plate (16), and a coal shoveling plate (20) is provided on the left side surface of the upper coal chute side (1).

6. The wear-resistant groove side of the middle groove of a scraper conveyor according to claim 5, characterized in that: The front and rear surfaces of the thin wear-resistant plate (16) are both fixedly connected to side blocks (18), and the left side surface of the side block (18) is fixedly connected to a limiting block (19).

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