CN219317848U - Novel central air pipe - Google Patents
Novel central air pipe Download PDFInfo
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- CN219317848U CN219317848U CN202223441520.5U CN202223441520U CN219317848U CN 219317848 U CN219317848 U CN 219317848U CN 202223441520 U CN202223441520 U CN 202223441520U CN 219317848 U CN219317848 U CN 219317848U
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Abstract
The utility model discloses a novel central air pipe, which consists of a first central air pipe and a second central air pipe, wherein the first central air pipe consists of pipe heads arranged on the left side and the right side and a middle pipe body, the middle of the pipe body is cylindrical, two ends of the pipe body are provided with slopes, the slopes are divided into 15-degree slopes and 40-degree slopes, the 15-degree slopes are connected with the left end pipe head, the 40-degree slopes are connected with the right end pipe head, the 40-degree slopes are provided with windward surfaces, the first central air pipe and the second central air pipe are fixedly welded, the 15-degree slopes are longer, the 40-degree slopes are shorter, the damage of the first central air pipe caused by splashing of foreign matters can be effectively prevented, the wind resistance is reduced, the overall strength and the collision impact resistance of products are improved, and the service life of the first central air pipe is prolonged.
Description
Technical Field
The utility model relates to the field of central air pipes, in particular to a novel central air pipe.
Background
Referring to fig. 4, in the prior art, a central air duct is divided into a central air duct section a and a central air duct section B, wherein the central air duct section a adopts ZG30Cr22Ni7Si2NRe heat-resistant steel, is unstable at high temperature strength, and the central air duct section B is integrally formed, so that casting is inconvenient, and adopts ZG40 crnimomensire wear-resistant steel, and the windward side adopts common rare earth wear-resistant steel, so that the wear resistance is not high.
Therefore, the utility model re-segments the central air pipe in the prior art, thereby solving the problem of inconvenient casting caused by the integral molding of the B section of the central air pipe.
Disclosure of Invention
The utility model aims to provide a novel central air pipe aiming at the problems.
In order to achieve the technical purpose, the scheme of the utility model is as follows: the utility model provides a novel center tuber pipe, center tuber pipe comprises center tuber pipe first and center tuber pipe second, center tuber pipe first is by the tube head that both sides set up about and the body in the middle constitutes, be cylindrical in the middle of the body, both ends set up into the slope, the slope divide into 15 slopes and 40 slopes, 15 slopes connect left end tube head, 40 slopes connect right-hand member tube head, set up windward side on the 40 slopes, center tuber pipe first and center tuber pipe second welded fastening.
Preferably: the first central air pipe is sand casting, and the second central air pipe is centrifugal casting.
Preferably: the first central air pipe is made of ZG06Cr25Ni20 heat-resistant steel, and the second central air pipe is made of ZG40CrMnMoNiSiRe wear-resistant steel.
Preferably: the windward side is welded by adopting a CRH3 welding material, and the welding layer is 5mm.
The utility model has the beneficial effects that:
the central air pipe adopts a sectional form and is divided into a first central air pipe and a second central air pipe, so that the casting is convenient, the first central air pipe is cast by adopting a sand mould, the central air pipe is convenient to form, the second central air pipe can omit a core by adopting centrifugal casting, and the castings without shrinkage cavities, air holes and slag inclusion are realized, so that the purposes of fine structure, good performance and simple mode are achieved.
2. The slope is divided into 15-degree slope and 40-degree slope, and the 40-degree slope surface is provided with the windward side, so that the damage of the first central air pipe caused by splashing of foreign matters can be effectively prevented, the wind resistance is reduced, the overall strength and the collision and impact resistance of the product are improved, and the service life of the first central air pipe is prolonged.
3. Adopt CRH3 welding material to weld, the welding layer is 5mm, assurance wear resistance that can be better.
4. The material of the first part of the central air pipe is changed into ZG06Cr25Ni20Si2 with higher temperature resistance, so that the first part of the central air pipe has more stable performance under high temperature strength, and the second part of the central air pipe adopts ZG40CrNiMoMnSiRe wear-resistant steel with good wear resistance.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a central air duct of the present utility model;
FIG. 3 is a schematic view of a central air duct of the present utility model;
fig. 4 is a schematic diagram of the structure of the present utility model before modification.
In the figure: 1. the central air pipe I2, the central air pipe II 3, the pipe head 4, the pipe body 5, the 15-degree slope 6, the 40-degree slope 7 and the windward side.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and to specific examples.
As shown in the figure, the concrete embodiment of the utility model is a novel central air pipe, the central air pipe consists of a first central air pipe 1 and a second central air pipe 2, the first central air pipe 1 consists of a pipe head 3 arranged at the left side and the right side and a middle pipe body 4, the middle of the pipe body 4 is cylindrical, two ends of the pipe body are provided with slopes, the slopes are divided into 15-degree slopes 5 and 40-degree slopes 6, the 15-degree slopes 5 are connected with the left pipe head, the 40-degree slopes 6 are connected with the right pipe head, the windward side 7 is arranged on the 40-degree slopes, the first central air pipe 1 and the second central air pipe 2 are fixedly welded, the 15-degree slopes 5 are longer, the 40-degree slopes are shorter, the first central air pipe is effectively prevented from being damaged by foreign body splashing, the wind resistance is reduced, the overall strength and the collision impact resistance of the product are improved, and the service life of the first central air pipe is prolonged.
The first central air pipe 1 is made of ZG06Cr25Ni20Si2 heat-resistant steel, so that the first central air pipe has more stable performance at high temperature strength, and the first central air pipe 1 is made of sand casting and is convenient to mold.
The second central air pipe 2 is centrifugally cast, a core can be omitted, casting without shrinkage cavities, air holes and slag inclusion is achieved, fine structure, good performance and simple mode are achieved, the second central air pipe 2 is made of ZG40CrNiMoMnSiRe wear-resistant steel, and good wear resistance is achieved.
The CRH3 material is deposited on the windward side 7, so that the wear resistance can be better ensured.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model, but any minor modifications, equivalents, and improvements made to the above embodiments according to the technical principles of the present utility model should be included in the scope of the technical solutions of the present utility model.
Claims (5)
1. The utility model provides a novel center tuber pipe, center tuber pipe comprises center tuber pipe one (1) and center tuber pipe two (2), its characterized in that: the central air pipe I (1) is composed of a pipe head (3) arranged on the left side and the right side and a middle pipe body (4), the middle of the pipe body (4) is cylindrical, two ends of the pipe body are provided with slopes, the slopes are divided into 15-degree slopes (5) and 40-degree slopes (6), the 15-degree slopes (5) are connected with the left-end pipe head, the 40-degree slopes (6) are connected with the right-end pipe head, a windward surface (7) is arranged on the 40-degree slopes, and the central air pipe I (1) and the central air pipe II (2) are fixedly welded.
2. A novel central air duct according to claim 1, wherein: the 15 DEG ramp (5) is longer and the 40 DEG ramp is shorter.
3. A novel central air duct according to claim 1, wherein: the first central air pipe (1) is sand casting, and the second central air pipe (2) is centrifugal casting.
4. A novel central air duct according to claim 1, wherein: the first central air pipe (1) is made of ZG06Cr25Ni20 heat-resistant steel, and the second central air pipe (2) is made of ZG40CrMnMoNiSiRe wear-resistant steel.
5. A novel central air duct according to claim 1, wherein: the windward side (7) is welded by adopting a CRH3 welding material, and the welding layer is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223441520.5U CN219317848U (en) | 2022-12-22 | 2022-12-22 | Novel central air pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223441520.5U CN219317848U (en) | 2022-12-22 | 2022-12-22 | Novel central air pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219317848U true CN219317848U (en) | 2023-07-07 |
Family
ID=87032337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223441520.5U Active CN219317848U (en) | 2022-12-22 | 2022-12-22 | Novel central air pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219317848U (en) |
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2022
- 2022-12-22 CN CN202223441520.5U patent/CN219317848U/en active Active
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