Riser structure and die for casting wide-rim single-rocker-arm hub

Abstract

The utility model discloses a riser structure and mould for casting a wide rim single rocker arm hub, which comprises a riser pipe, a sleeve is sleeved outside the riser pipe, the outer wall of the riser pipe is attached to the inner wall of the sleeve, a spiral cooling channel is arranged in the sleeve, a through hole I and a through hole II are arranged on the side wall of the sleeve, and the through hole I and the through hole II are communicated with each other. The outer ends of the first through hole and the second through hole communicate with the periphery of the sleeve, and the inner ends of the first through hole and the second through hole communicate with the two ends of the cooling channel correspondingly. According to the utility model, molten metal in the riser can be fully cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of moulds, and more specifically, to a riser structure and a mould for casting a wide rim single swing arm wheel hub. Background Art

[0002] At present, the use of single swing arm and wide rim wheel hubs is increasing. Since the center of the drum part leans to one side, the height of the center riser is very high. At present, for such a center riser, either there is no cooling, or a patch ring water cooling is designed at a relatively far position at the bottom of the center riser. In the process of casting and mold removal, due to insufficient cooling, the middle and upper parts of the center riser are prone to break. If the mold is removed after sufficient cooling, it takes a long time, and the daily output of casting will be relatively low. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a riser structure and a mould for casting a wide rim single swing arm wheel hub.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a riser structure for casting a wide rim single swing arm wheel hub, which includes a riser pipe. A sleeve is sleeved outside the riser pipe, and the outer wall of the riser pipe is attached to the inner wall of the sleeve. A cooling channel is arranged in the sleeve, and the cooling channel is spiral. Through holes one and two are arranged on the side wall of the sleeve. The outer ends of the through holes one and two are communicated with the outer circumference of the sleeve, and the inner ends of the through holes one and two are respectively connected with the two ends of the cooling channel.

[0006] Further, a connecting pipe is connected to the outer end of the through hole one.

[0007] Further, the diameter of the upper end of the riser pipe is smaller than that of the lower end.

[0008] Further, an installation ring is connected to the lower end of the riser pipe, and a pressing ring is connected to the lower end of the sleeve. The lower end of the pressing ring abuts against the upper end of the installation ring.

[0009] Further, a plurality of fixing holes are arranged on the pressing ring.

[0010] A mould includes a lower mould, side moulds, an upper mould and the above-mentioned riser structure.

[0011] The beneficial effect of the utility model is that a cooling medium is passed through the cooling channel, so that most areas of the riser pipe can be cooled to ensure the solidification and forming of the molten metal in the riser pipe. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the riser structure for casting a wide rim single swing arm wheel hub in this embodiment;

[0013] Figure 2 This is a schematic structural diagram of the mold in this embodiment.

[0014] Reference numerals: 1, riser pipe; 2, sleeve; 3, cooling channel; 4, through hole 1; 5, connecting pipe; 6, through hole 2; 7, mounting ring; 8, pressing ring; 9, fixing hole; 10, lower mold; 11, side mold; 12, upper mold; 13, pressing block; 14, cooling cone. Detailed implementation manners

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0016] As Figure 1 shown, a riser structure for casting a wide rim single rocker arm wheel hub includes a riser pipe 1, a sleeve 2 is sleeved outside the riser pipe 1, the outer wall of the riser pipe 1 is attached to the inner wall of the sleeve 2, a cooling channel 3 is provided in the sleeve 2, the cooling channel 3 is spiral, the upper and lower ends of the cooling channel 3 are respectively close to the upper and lower ends of the riser pipe 1, so that the cooling channel 3 can cover most of the area of the riser pipe 1, thereby increasing the cooling range of the riser pipe 1. The cross-section of the cooling channel 3 is circular with a diameter of 10 mm. Through holes 1 (4) and through holes 2 (6) are provided on the side wall of the sleeve 2, the through hole 1 (4) is an inlet, and the through hole 2 (6) is an outlet. The diameter of the through hole 1 (4) is 10 mm, and the diameter of the through hole 2 (6) is 6 mm.

[0017] The outer ends of the through hole 1 (4) and the through hole 2 (6) are communicated with the outer periphery of the sleeve 2, and the inner ends of the through hole 1 (4) and the through hole 2 (6) are respectively communicated with the upper and lower ends of the cooling channel 3. A connecting pipe 5 is connected to the outer end of the through hole 1 (4), the connecting pipe 5 is an iron pipe, and the connecting pipe 5 is communicated with the hose of the casting machine platform to cool the gas.

[0018] Further, the diameter of the upper end of the riser pipe 1 is smaller than that of the lower end, and the inner wall structure of the sleeve 2 is arranged according to the shape of the riser pipe 1, and the two can fit together to ensure the cooling effect.

[0019] Further, a mounting ring 7 is connected to the lower end of the riser pipe 1, a pressing ring 8 is connected to the lower end of the sleeve 2, and the lower end of the pressing ring 8 abuts against the upper end of the mounting ring 7. A plurality of fixing holes 9 are provided in the pressing ring 8. The mounting ring 7 is arranged on the upper mold 12, and screws pass through the fixing holes 9 to fix the pressing ring 8 on the upper mold 12 of the mold, and the pressing ring 8 presses on the mounting ring 7, thereby completing the fixing of the mounting ring 7.

[0020] AsFigure 2 As shown, a mold includes a lower mold 10, side molds 11, an upper mold 12 and the above-mentioned riser structure. The lower mold 10 and the upper mold 12 are arranged opposite to each other up and down, the side molds 11 are arranged on the outer periphery of the lower mold 10 and the upper mold 12, and the number of the side molds 11 is set to four. A pressing block 13 is fixed to the upper part of the upper mold 12, and the outer periphery of the pressing block 13 abuts against the inner wall of the side mold 11. A cooling cone 14 is arranged at the middle position of the lower mold 10. The riser structure is arranged at the middle position of the upper part of the upper mold 12. The installation method of the riser structure is that the installation ring 7 is arranged on the upper mold 12, the sleeve 2 is installed on the upper mold 12 by screws, and the sleeve 2 presses the riser pipe 1.

[0021] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A riser structure for casting a wide rim single rocker hub, characterized in that: The invention comprises a riser pipe (1), wherein a sleeve (2) is disposed on the outer surface of the riser pipe (1), the outer wall of the riser pipe (1) is arranged to fit the inner wall of the sleeve (2), a cooling channel (3) is provided in the sleeve (2), and the cooling channel (3) is spiral-shaped. A through hole (4) and a through hole (6) are provided on the side wall of the sleeve (2), the outer ends of the through hole (4) and the through hole (6) are connected to the outer periphery of the sleeve (2), and the inner ends of the through hole (4) and the through hole (6) are respectively connected to the two ends of the cooling channel (3).

2. The riser structure for casting a wide rim single rocker hub according to claim 1, characterized in that: The outer end of the through hole 1 (4) is connected to a connecting pipe (5).

3. The riser structure for casting a wide rim single rocker hub according to claim 1, characterized in that: The diameter of the upper end of the riser pipe (1) is smaller than the diameter of the lower end.

4. The riser structure for casting a wide rim single rocker hub according to claim 1, characterized in that: The lower end of the riser pipe (1) is connected to a mounting ring (7), the lower end of the sleeve (2) is connected to a pressure ring (8), and the lower end of the pressure ring (8) abuts against the upper end of the mounting ring (7).

5. The riser structure for casting a wide rim single rocker hub according to claim 4, characterized in that: The pressure ring (8) is provided with a plurality of fixing holes (9).

6. A mold, characterized in that: The invention comprises a lower mold (10), a side mold (11), an upper mold (12) and a riser structure for casting a wide rim single rocker hub as claimed in any one of claims 1 to 5.

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