CN204220944U - Spiral cooling channel cast aluminium support Integral casting die - Google Patents

Abstract

The utility model is specially a kind of spiral cooling channel cast aluminium support Integral casting die, solves that existing spiral cooling channel cast aluminium support adopts split casting to exist to waste time and energy, inefficiency and easily leak and affect the problem of support quality.Comprise cooling fluid casing, upper bolster and die shoe, cooling fluid casing is provided with the pump housing be communicated with it, the outer die body of cylindrical metal is provided with between upper bolster and die shoe, Precoated resin sand core is provided with in the outer die body of cylindrical metal, Precoated resin sand core has ingate, cast aluminium helical duct is provided with in the outer cavity between die body and Precoated resin sand core of cylindrical metal, the lower end of cast aluminium helical duct is provided with between cooling fluid casing the liquid back pipe be communicated with both, the upper end of cast aluminium helical duct be provided with the feed tube be communicated with both between the pump housing, feed tube and liquid back pipe are provided with valve body.The utility model achieves once casting out of spiral cooling channel cast aluminium support, effectively controls the manufacturing cost of motor.

Description

Integral casting mold of cast aluminum machine base with spiral cooling channel

technical field

The utility model relates to an integral casting mold, in particular to an integral casting mold of a cast aluminum frame of a spiral cooling channel.

Background technique

With the rapid development of electric vehicle subway motor manufacturing technology, the integral casting process of the cast aluminum base of the spiral cooling channel has become the highlight of this motor manufacturing technology. Intercity express generators, airport bus motors, and electric vehicle motors mostly use cast aluminum frames with spiral cooling channels. The helical cooling channel cast aluminum frame with good heat dissipation is the key to meet the requirements of motor manufacturing. The quality of the helical cooling channel cast aluminum frame directly affects the quality, labor productivity and benefit of this type of motor.

At present, the manufacturing process of the spiral cooling channel cast aluminum frame in the same industry at home and abroad is: split casting-processing-welding-assembly to form the blank of the frame-reprocessing to form the core of the frame, in the process of casting, processing, and welding, There are the following disadvantages: 1. It is necessary to prepare two sets of casting molds and tooling, which is expensive and takes a long time; 2. The spiral cooling channel processing of the inner cylinder is difficult and time-consuming because the channels are heterogeneous and spiral channels; 3. Process positioning is required for the inner and outer cylinder sets, otherwise it will cause misalignment and scrap the machine base; 4. The welding of the inner and outer cylinders requires high welding quality due to the large welding workload (the machine base must be subjected to a pressure test after welding) , Often due to welding quality problems, the machine base leaks and affects the performance of the machine base, and even causes the motor to be scrapped.

Contents of the invention

In order to solve the problems of time-consuming, labor-intensive, low efficiency and easy water leakage affecting the quality of the machine base in the existing spiral cooling channel cast aluminum machine base, the utility model provides an integral casting mold for the spiral cooling channel cast aluminum machine base.

The utility model is realized by adopting the following technical scheme: the integral casting mold of the cast aluminum machine base of the spiral cooling channel includes a cooling liquid box body, an upper mold base and a lower mold base, the cooling liquid box body is provided with a pump body communicating with it, and the upper mold A columnar metal outer mold body is arranged between the base and the lower mold base, and a coated resin sand sand core matching the inner cavity of the machine base is arranged in the columnar metal outer mold body. The inner sprue connected with the direct pouring channel, the cavity between the columnar metal outer mold body and the coated resin sand core is provided with a cast aluminum spiral channel, and the lower end of the cast aluminum spiral channel and the cooling liquid box are provided with a A liquid return pipe connected between the two, and a liquid inlet pipe connected between the upper end of the cast aluminum spiral passage and the pump body are arranged, and a valve body is arranged on the liquid inlet pipe and the liquid return pipe.

When the overall casting is carried out, the cylindrical metal outer mold body is demolded in pieces to ensure the smoothness of the appearance of the machine base and the accuracy of the appearance of the shape features; the use of coated resin sand cores ensures sufficient air permeability during the casting process and fully guarantees the internal quality of the castings ;The cast aluminum spiral channel is adopted, and the cooling liquid is pumped out through the pump body, flows into the cast aluminum spiral channel through the liquid inlet pipe, and flows back to the cooling liquid box through the liquid return pipe to cool the cast aluminum spiral channel to ensure that the cast aluminum spiral channel While the effective section of the channel and the overall channel are unobstructed, it is ensured that the cast aluminum pipe will not melt during the pouring process. It overcomes the problems of time-consuming, labor-intensive, low-efficiency, and easy water leakage that affects the quality of the machine base in the existing spiral cooling channel cast aluminum machine base.

The utility model has a reasonable and reliable structural design, realizes the one-time casting of the cast aluminum frame of the spiral cooling channel, reduces the difficulty and labor intensity of motor manufacturing, simplifies the process of manufacturing key parts of the motor at the same time, improves the reliability of manufacturing operation, and effectively The manufacturing cost of the motor is controlled.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1-coolant tank, 2-upper mold base, 3-lower mold base, 4-pump body, 5-column metal outer mold body, 6-coated resin sand core, 7-direct pouring channel, 8-Inner runner, 9-Cast aluminum spiral channel, 10-Liquid return pipe, 11-Liquid inlet pipe, 12-Valve body.

Detailed ways

The integral casting mold of the cast aluminum machine base of the spiral cooling channel, including the cooling liquid box 1, the upper mold base 2 and the lower mold base 3, the cooling liquid box 1 is provided with a pump body 4 communicating with it, the upper mold base 2 and the lower mold base 3 is provided with a columnar metal outer mold body 5, and a coated resin sand core 6 matching with the inner cavity of the machine base is arranged inside the columnar metal outer mold body 5, and a direct pouring channel 7 is opened on the coated resin sand core 6 And the ingate 8 communicating with the direct pouring channel 7, the cavity between the columnar metal outer mold body 5 and the coated resin sand sand core 6 is provided with a cast aluminum spiral channel 9, the lower end of the cast aluminum spiral channel 9 is connected to the cooling A liquid return pipe 10 communicating with the two is arranged between the liquid tank 1, and a liquid inlet pipe 11 communicating with the two is arranged between the upper end of the cast aluminum spiral channel 9 and the pump body 4, and the liquid inlet pipe 11 and the liquid return pipe Valve bodies 12 are arranged on the pipes 10 .

Claims (1)

1. An integral casting mold for a cast aluminum machine base with a spiral cooling channel, which is characterized in that it includes a coolant box (1), an upper mold base (2) and a lower mold base (3), and the coolant box (1) is set There is a pump body (4) connected to it, a columnar metal outer mold body (5) is arranged between the upper mold base (2) and the lower mold base (3), and a cylindrical metal outer mold body (5) is provided with a machine base The coated resin sand core (6) fitted with the inner cavity, the coated resin sand core (6) is provided with a direct pouring channel (7) and an ingate (8) communicating with the direct pouring channel (7), columnar A cast aluminum spiral channel (9) is provided in the cavity between the metal outer mold body (5) and the coated resin sand core (6), and the lower end of the cast aluminum spiral channel (9) is connected to the cooling liquid box (1) A liquid return pipe (10) communicating with the two is arranged between them, and a liquid inlet pipe (11) communicating with the two is arranged between the upper end of the cast aluminum spiral channel (9) and the pump body (4). (11) and the liquid return pipe (10) are provided with a valve body (12).