CN216733244U - Composite lining board - Google Patents
Composite lining board Download PDFInfo
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- CN216733244U CN216733244U CN202122425875.4U CN202122425875U CN216733244U CN 216733244 U CN216733244 U CN 216733244U CN 202122425875 U CN202122425875 U CN 202122425875U CN 216733244 U CN216733244 U CN 216733244U
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Abstract
The utility model discloses a composite lining plate which comprises a bottom plate and a composite layer, wherein the bottom plate and the composite layer are arranged from bottom to top, the composite layer comprises a bearing layer and a plurality of wear-resistant bodies, the bearing layer and the wear-resistant bodies are fixedly connected with the bottom plate, and the wear-resistant bodies are embedded in the bearing layer. According to the utility model, the structure of the wear-resistant body and the structure of the bearing layer in the composite lining plate and the combination form of the wear-resistant body, the bearing layer and the bottom plate are optimized, so that the impact strength, the wear resistance and the thermal shock resistance of the composite lining plate are improved from multiple aspects, the composite lining plate can meet the performance requirements of a high-impact-strength working condition and a thermal shock working condition, and the technical problem of weak impact resistance of the existing single ceramic lining plate is solved.
Description
Technical Field
The utility model relates to the field of material processing and manufacturing, in particular to a composite lining plate.
Background
In order to prevent the equipment body from being worn and prolong the service life of the equipment in a material conveying system in the industries of mines, steel, electric power, cement, nonferrous materials, chemical engineering and the like, wear-resistant lining plates are arranged at the parts through which materials flow. In the prior art, a single ceramic lining plate or a cast iron lining plate is generally adopted as a wear-resistant lining plate, particularly the ceramic lining plate is widely used due to the strong wear-resistant performance.
However, the existing single ceramic liner plate has the problem of poor impact resistance, when the material fall in a conveying system is large, the ceramic liner plate arranged at an impacted part is difficult to completely absorb the impact force, so that the structure of the liner plate is damaged, the service cycle is greatly shortened, and the field use requirement is difficult to adapt.
SUMMERY OF THE UTILITY MODEL
The utility model provides a composite lining plate, which is used for solving the technical problem that the existing single ceramic lining plate is not strong in impact resistance.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a composite liner plate, includes bottom plate and composite bed from supreme setting down, the composite bed includes bearer layer and a plurality of wear-resisting body, bearer layer and bottom plate rigid coupling, just wear-resisting body inlay in the bearer layer.
Above-mentioned technical scheme's design idea lies in, this technical scheme divide into fixed connection's bottom plate and composite bed with the welt, can pass through the composite bed with the impact force when receiving the impact and transmit to the bottom plate, simultaneously, preferably the inlaying of bearer layer and the wearing body is compound with the structure of composite bed, has utilized the wear-resisting property of the wear-resisting body promptly, has utilized the intensity and the buffer property of bearer layer again, has solved the weak problem of single ceramic welt shock resistance.
As a further improvement of the above technical solution:
the wear-resistant body is rod-shaped, is vertical to the bottom plate and is embedded in the bearing layer. The wear-resisting body that is the bar-shaped is inlayed perpendicularly in the bearer layer, and when receiving the impact, the wear-resisting body transmits the impact force to the bottom plate along the vertical direction on, can show on the one hand and improve the atress condition on the bearer layer vertical direction to show the impact strength who improves the composite bed, on the other hand still can absorb the energy through wear-resisting body self deformation on the vertical direction, play the cushioning effect, improve the shock resistance of composite liner board.
The ratio of the height to the diameter of the wear-resistant body is 1-2. The wear-resistant body under the structural proportion has the best force conduction and structural stability, the completeness of the whole structure of the wear-resistant body can be guaranteed while the force transmission and the buffering effect are achieved, and the service life of the composite lining plate is prolonged.
The diameter of the upper end of the rod-shaped wear-resistant body is smaller than that of the lower end of the rod-shaped wear-resistant body. The diameter of the upper end of the wear-resistant body is limited to be smaller than that of the lower end of the wear-resistant body, the structure is of a structure similar to a circular truncated cone, on one hand, the stress stability of the wear-resistant body can be further improved, better force transmission of the wear-resistant body is facilitated, the impact resistance of the composite lining plate can be enhanced, and on the other hand, the wear-resistant body and the bearing layer can be prevented from falling off under the extremely high impact working condition.
The height of the wear-resistant body is larger than the thickness of the bearing layer, so that one end of the wear-resistant body extends out of the surface of the bearing layer. The wear-resistant body extending out of the surface of the bearing layer is used as a main stress point on the surface of the composite lining plate, so that impact materials can be prevented from directly contacting with the bearing layer, on one hand, the impact resistance of the composite lining plate is improved by utilizing the force transmission and buffering of the wear-resistant body, and on the other hand, the wear resistance of the wear-resistant body is improved.
One end of the wear-resistant body extending out of the surface of the bearing layer is of a spherical structure. When the bulk material falls from a high position, the bulk material firstly contacts the wear-resistant body on the composite lining plate, the contact part of the wear-resistant body is set to be in a spherical surface protrusion structure, the impact force of the bulk material on the surface of the lining plate can be partially decomposed, and the impact resistance of the composite lining plate is further improved.
And a buffer layer is arranged between the composite layer and the bottom plate. The buffer layer is arranged between the composite layer and the bottom plate, and the impact force applied to the wear-resistant body can be transmitted to the bottom plate after being buffered by the buffer layer with high elasticity, so that part of energy is consumed, and the impact resistance of the composite lining plate is further improved.
A buffer layer is arranged between the wear-resistant body and the bearing layer; the buffer layer is a rubber layer. The buffer layer is arranged between the wear-resistant body and the bearing layer, and the impact force applied to the wear-resistant body can be absorbed by the bearing layer after being buffered by the buffer layer with high elasticity, so that part of energy is consumed, and the impact resistance of the composite lining plate is further improved.
The wear-resistant body is an alumina ceramic rod or a hard alloy rod. The two wear-resistant bodies have good wear resistance and high temperature resistance, and simultaneously have certain strength, so that the wear resistance, the overall impact resistance and the thermal shock resistance of the composite lining plate can be enhanced.
The bearing layer is a high manganese steel layer or a high chromium cast iron layer. The two bearing layer structures have good toughness and good strength, can absorb the impact force conducted by the wear-resistant body, and improve the overall impact strength of the composite lining plate.
The bottom plate is a steel plate.
Compared with the prior art, the utility model has the advantages that:
according to the utility model, the structure of the wear-resistant body and the structure of the bearing layer in the composite lining plate and the combination form of the wear-resistant body, the bearing layer and the bottom plate are optimized, so that the impact strength, the wear resistance and the thermal shock resistance of the composite lining plate are improved from multiple aspects, the composite lining plate can meet the performance requirements of a high-impact-strength working condition and a thermal shock working condition, and the technical problem of weak impact resistance of the existing single ceramic lining plate is solved.
Drawings
FIG. 1 is a schematic cross-sectional view of the composite liner of example 1;
FIG. 2 is a schematic top view of the composite liner of example 1;
fig. 3 is a schematic cross-sectional structural view of the composite liner of example 2.
Illustration of the drawings:
1. a base plate; 2. a carrier layer; 3. a wear resistant body; 4. a buffer layer.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1:
as shown in fig. 1 and fig. 2, the composite lining board of the embodiment includes a bottom board 1 and a composite layer which are arranged from bottom to top, the composite layer includes a bearing layer 2 and a plurality of wear-resistant bodies 3, the bearing layer 2 and the wear-resistant bodies 3 are fixedly connected with the bottom board 1, and the wear-resistant bodies 3 are embedded in the bearing layer 2.
In this embodiment, the wear-resistant body 3 is rod-shaped, and the wear-resistant body 3 is fixedly connected with the bottom plate 1 through the bottom surface thereof.
In this embodiment, the ratio of the height to the diameter of the wear-resistant body 3 is 2.
In this embodiment, the diameter of the upper end of the rod-shaped wear-resistant body 3 is smaller than the diameter of the lower end thereof.
In this embodiment, the height of the wear-resistant body 3 is greater than the thickness of the bearing layer 2, so that one end of the wear-resistant body 3 extends out of the surface of the bearing layer 2.
In this embodiment, one end of the wear-resistant body 3 extending out of the surface of the bearing layer 2 is in a spherical structure.
In this embodiment, the wear-resistant body 3 is a titanium carbide cemented carbide rod.
In this embodiment, the bearing layer 2 is a high manganese steel layer.
The preparation method of the composite lining board of the embodiment comprises the following operations:
(1) preparing a cermet titanium carbide hard alloy rod (wear-resistant body 3) with spherical protrusions: after dry pressing and isostatic pressing, the hard alloy rod is degreased and sintered in a vacuum furnace, and is used after being detected to be qualified;
(2) fixing the wear-resistant body 3: one end of the wear-resistant body 3 is welded with a fixing column, and the other end of the fixing column is inserted into the sand mold and is firmly fixed;
(3) pouring: pouring high manganese steel molten steel into the cavity through the pouring gate, and forming metallurgical bonding with the alloy rod in the molten steel solidification process;
(4) and (3) heat treatment: the lining board is treated by water toughening according to a certain process system, so that the mechanical property of the lining board is optimal.
Example 2:
as shown in fig. 3, the composite lining board of the embodiment includes a bottom board 1 and a composite layer which are arranged from bottom to top, the composite layer includes a bearing layer 2 and a plurality of wear-resistant bodies 3, the bearing layer 2 and the wear-resistant bodies 3 are fixedly connected with the bottom board 1, and the wear-resistant bodies 3 are embedded in the bearing layer 2.
In this embodiment, the wear-resistant body 3 is rod-shaped, and the wear-resistant body 3 is fixedly connected with the bottom plate 1 through the bottom surface thereof.
In this embodiment, the ratio of the height to the diameter of the wear-resistant body 3 is 2.
In this embodiment, the diameter of the upper end of the rod-shaped wear-resistant body 3 is smaller than the diameter of the lower end thereof.
In this embodiment, the height of the wear-resistant body 3 is greater than the thickness of the bearing layer 2, so that one end of the wear-resistant body 3 extends out of the surface of the bearing layer 2.
In this embodiment, one end of the wear-resistant body 3 extending out of the surface of the bearing layer 2 is in a spherical structure.
In this embodiment, a buffer layer 4 is provided between the composite layer and the base plate 1.
In this embodiment, a buffer layer 4 is disposed between the wear-resistant body 3 and the bearing layer 2; the cushion layer 4 is a rubber layer.
In this embodiment, the wear-resistant body 3 is an alumina ceramic rod.
In this embodiment, the bearing layer 2 is a high-chromium cast iron layer.
The preparation method of the composite lining board of the embodiment comprises the following operations:
(1) preparation of ceramic column with spherical bulge (wear-resistant body): the toughened alumina powder is formed by dry pressing through a 600 ton press, is formed by isostatic pressing under the pressure of 160MPA, is sintered at the high temperature of 1580-1620 ℃ in a high-temperature sintering furnace, and is used for standby after being detected to be qualified.
(2) Preparation of the carrier layer 2: high-chromium cast iron is selected according to the actual working conditions of customers and is manufactured by casting and corresponding heat treatment processes. In the bearing layer 2, the edge between the holes is designed to be about 5-10mm, the size of the whole lining plate is controlled within 500mm 100mm, cracks are not allowed to appear in the casting process of the lining plate, the size tolerance is controlled within +/-1 mm, the surface of the lining plate is smooth, the surface and the holes are processed cleanly through sand blasting, and the luster of the metal body is exposed.
(3) And (3) hot vulcanization: the wear-resistant body 3, the bearing layer 2 and the mounting steel plate are subjected to pretreatment processes such as cleaning, sand blasting, glue spraying, glue brushing and the like. The vulcanization is divided into two steps to be carried out, after rubber is wound on the periphery of the ceramic column (the wear-resistant body 3), the ceramic column is fixedly placed in a hole of the bearing layer to be vulcanized once, a 2mm rubber layer is filled between the ceramic column (the wear-resistant body 3) and the bearing layer 2, the ceramic column (the wear-resistant body 3) is integrated with the bearing layer 2, meanwhile, the bearing layer 2 also plays a role in protecting the ceramic column (the wear-resistant body 3), and the ceramic column (the wear-resistant body 3) is not easy to break. After the first vulcanization, rubber is paved between the bearing layer 2 and the bottom mounting steel plate (bottom plate 1) for second vulcanization. The two times of vulcanization can ensure that the (wear-resistant body 3), the bearing layer 2 and the bottom plate 1 are well combined.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the utility model are to be considered as within the scope of the utility model.
Claims (10)
1. The utility model provides a composite liner plate, its characterized in that includes bottom plate (1) and the composite bed of supreme setting down, the composite bed includes bearer layer (2) and a plurality of wear-resisting body (3), bearer layer (2) and bottom plate (1) rigid coupling, just a plurality of wear-resisting body (3) inlay in bearer layer (2).
2. The composite liner according to claim 1, wherein the wear resistant body (3) is rod-shaped and the wear resistant body (3) is vertically fixed to the bottom plate (1).
3. The composite liner plate according to claim 2, wherein the ratio of the height to the diameter of the wear-resistant body (3) is 1-2.
4. The composite liner according to claim 2, characterized in that the diameter of the wear-resistant bodies (3) in the form of rods is smaller at their upper end than at their lower end.
5. Composite lining plate according to claim 2, characterised in that the height of the wear-resistant body (3) is greater than the thickness of the carrier layer (2) so that one end of the wear-resistant body (3) protrudes beyond the surface of the carrier layer (2).
6. The composite liner according to claim 5, characterized in that the end of the wear-resistant body (3) extending beyond the surface of the carrier layer (2) is of spherical structure.
7. Composite liner according to claim 2, wherein a buffer layer (4) is arranged between the composite layer and the bottom plate (1).
8. Composite lining plate according to claim 7, characterised in that a buffer layer (4) is arranged between the wear-resistant body (3) and the carrier layer (2); the buffer layer (4) is a rubber layer.
9. Composite liner according to any one of claims 2-8, wherein the wear resistant bodies (3) are alumina ceramic rods or cemented carbide rods.
10. Composite liner according to any one of claims 1 to 8, wherein the bearing layer (2) is a high manganese steel layer or a high chromium cast iron layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122425875.4U CN216733244U (en) | 2021-10-09 | 2021-10-09 | Composite lining board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122425875.4U CN216733244U (en) | 2021-10-09 | 2021-10-09 | Composite lining board |
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| Publication Number | Publication Date |
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| CN216733244U true CN216733244U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122425875.4U Active CN216733244U (en) | 2021-10-09 | 2021-10-09 | Composite lining board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055269A (en) * | 2022-07-15 | 2022-09-16 | 郑州机械研究所有限公司 | Wear-resistant structure and preparation method thereof |
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2021
- 2021-10-09 CN CN202122425875.4U patent/CN216733244U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055269A (en) * | 2022-07-15 | 2022-09-16 | 郑州机械研究所有限公司 | Wear-resistant structure and preparation method thereof |
| CN115055269B (en) * | 2022-07-15 | 2024-03-26 | 郑州机械研究所有限公司 | Wear-resistant structure and preparation method thereof |
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