Casting mold for shell of gyroscope stabilization device

Abstract

The utility model discloses a casting mold for a shell of a gyro stabilizer. The casting mold comprises an upper mold frame, a lower mold frame, an upper sand block and a lower sand block, wherein the upper sand block and the lower sand block are arranged in the upper mold frame and the lower mold frame and are used for casting and forming the shell; the mold is characterized in that the lower sand block comprises a cavity sand block and a runner sand block; a liquid inlet channel and a plurality of sub-runners communicated with the liquid inlet channel are arranged on the runner sand block; and the cavity sand block is provided with a pouring channel for feeding liquid into multiple positions of the shell at the same time. According to the utility model, a plurality of sub-runners are arranged on the runner sand block, and the pouring channels corresponding to the sub-runners are arranged on the cavity sand block, so that multiple times of simultaneous pouring of the shell are realized, each pouring channel divides the total amount of molten metal, the flow velocity of the molten metal in the pouring channels is reduced, and the situation that the shell is not uniform in filling due to the high flow velocity of the molten metal is reduced; and therefore, the quality of the shell casting is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a casting mould, concretely refers to a gyro stabilizer casing casting mould. BACKGROUND

[0002] The gyroscope plays a vital role on the ship, through providing high-precision navigation and positioning information, enhancing the stability of the ship, the thick casing of the gyroscope is generally made by low-pressure casting, in the prior art, the casing of the gyroscope adopts unified feeding on the large surface when casting, this mode accelerates the flow rate of the aluminum liquid, and the aluminum liquid flows too fast to cause uneven filling of the metal liquid at the cavity, resulting in problems such as scar, crack and air hole, thereby reducing the quality of the casing casting. SUMMARY

[0003] The utility model discloses a gyro stabilizer casing casting mould which solves the above problems.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a gyro stabilizer casing casting mould, comprising an upper mould frame, a lower mould frame and upper sand blocks and lower sand blocks for casing casting forming installed in the upper mould frame and the lower mould frame, characterized in that the lower sand blocks comprise cavity sand blocks and runner sand blocks, the runner sand blocks are provided with liquid inlet channels and a plurality of shunt channels communicated with the liquid inlet channels, and the cavity sand blocks are provided with pouring channels for simultaneously pouring liquid into the casing at multiple positions.

[0005] Preferably, the pouring channels on the cavity sand blocks are arranged corresponding to the shunt channels on the runner sand blocks.

[0006] Preferably, the cavity sand blocks are further provided with cold irons pre-embedded in the cavity periphery to reduce the flow rate of the metal liquid and improve the quality of the casting.

[0007] Preferably, the bottom of the cavity sand blocks is further provided with a positioning table for preventing wrong installation on the runner sand blocks.

[0008] Preferably, the runner sand blocks are provided with positioning grooves matched with the positioning table.

[0009] Preferably, the lower mould frame is provided with liquid inlets corresponding to the liquid inlet channels.

[0010] The utility model has the advantages that a plurality of shunt channels are arranged on the runner sand blocks, and corresponding pouring channels are arranged on the cavity sand blocks, thereby realizing multiple simultaneous pouring of the casing, the flow rate of the metal liquid in the pouring channels is reduced, the problem of uneven filling of the casing due to the flow rate of the metal liquid is reduced, and problems such as cracks and air holes are reduced, thereby improving the quality of the casing casting. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the structure schematic diagram of the utility model.

[0012] Fig. 2 It is the structure schematic diagram of the cavity sand block of the utility model.

[0013] Fig. 3 It is the structure schematic diagram of the flow channel sand block of the utility model.

[0014] Legend: 1, upper mold frame;2, lower mold frame;201, liquid inlet;3, upper sand block;4, cavity sand block;401, flow channel sand block;402, shunt;403, pouring channel;404, positioning table;405, positioning groove;406, liquid inlet channel. DETAILED DESCRIPTION

[0015] Now we make further explanation to the shell casting mold of a gyro stabilizer device of the utility model in combination with the drawings.

[0016] It should be noted that all directionality indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture such as shown in the drawings, and if the specific posture changes, the directionality indications also change accordingly.

[0017] Participate in the Figs. 1-3 As shown in the drawings, the shell casting mold of a gyro stabilizer device in the embodiment comprises an upper mold frame 1, a lower mold frame 2, and upper and lower sand blocks installed in the upper mold frame 1 and the lower mold frame 2 to form a shell; characterized in that the lower sand block comprises a cavity sand block 4 and a flow channel sand block 401;The flow channel sand block 401 is provided with a liquid inlet channel 406 and a plurality of shunts 402 communicated with the liquid inlet channel 406;The cavity sand block 4 is provided with a pouring channel 403 for simultaneously pouring liquid into the shell at multiple places;By providing a plurality of shunts 402 on the flow channel sand block 401 and a corresponding pouring channel 403 on the cavity sand block 4, multiple simultaneous pouring into the shell is realized, each pouring channel 403 divides the total metal liquid volume, the flow rate of the metal liquid in the pouring channel 403 is reduced, the problem of uneven filling, cracks and pores due to the flow rate of the metal liquid is reduced, and the quality of the shell casting is improved.

[0018] The pouring channel 403 on the cavity sand block 4 is correspondingly provided with the shunt 402 on the flow channel sand block 401;The cavity sand block 4 is also pre-buried with a chill iron in the cavity periphery to reduce the flow rate of the metal liquid and improve the quality of the casting;By using the chill iron, the flow rate of the metal liquid in the pouring channel 403 and the cavity of the cavity sand block 4 can be further reduced, the problem of cracks and pores is prevented, and the quality of the shell casting is improved.

[0019] The bottom of the cavity sand block 4 is further provided with a positioning table 404 for preventing wrong installation on the runner sand block 401; the runner sand block 401 is provided with a positioning groove 405 matched with the positioning table 404; the lower mold frame 2 is provided with a liquid inlet 201 corresponding to a liquid inlet channel 406; the positioning table 404 of the cavity sand block 4 is installed into the positioning groove 405 on the runner sand block 401 to position the cavity sand block 4 and prevent the cavity sand block 4 from being wrongly installed.

[0020] In the casting process of the utility model, the metal liquid in the crucible is delivered to the liquid inlet 201 on the lower mold frame 2 through the pressure of compressed air, the metal liquid flows to the liquid inlet channel 406 through the liquid inlet 201, then the metal liquid is divided through the liquid inlet channel 406 by the shunt channel 402, the flow rate of the metal liquid is reduced, the divided metal liquid flows into the cavity sand block 4 through the corresponding pouring channel 403, the temperature of the metal liquid is lowered by using the cold iron, thereby further reducing the flow rate of the metal liquid in the pouring channel 403 and the cavity of the cavity sand block 4, then the cavity sand block 4 and the cavity of the upper sand block 3 are used for casting and forming.

[0021] The above embodiment is a description of the utility model and not a limitation of the utility model, and any simple transformation of the utility model belongs to the protection scope of the utility model.

Claims

1. A casting mold for a housing of a gyro stabilizer, comprising an upper mold frame (1), a lower mold frame (2), and an upper sand block (3) and a lower sand block (4) installed in the upper mold frame (1) and the lower mold frame (2) to form a shape of the housing; characterized in that The lower sand block comprises a cavity sand block (4) and a runner sand block (401); the runner sand block (401) is provided with a liquid inlet channel (406) and a plurality of branch runners (402) communicated with the liquid inlet channel (406); the cavity sand block (4) is provided with a pouring channel (403) for simultaneously pouring liquid into multiple positions of a shell.

2. A casting mold for a gyro-stabilized device housing according to claim 1, characterized in that: The pouring channel (403) on the cavity sand block (4) is correspondingly arranged with the branch runner (402) on the runner sand block (401).

3. A casting mold for a gyro-stabilized device housing according to claim 2, characterized in that: The cavity sand block (4) is further provided with a cold iron embedded therein for reducing the metal liquid flow rate around the cavity and improving the quality of the casting.

4. A casting mold for a gyro-stabilized device housing according to claim 1, characterized in that: The bottom of the cavity sand block (4) is further provided with a positioning table (404) for preventing wrong installation on the runner sand block (401).

5. A mould for casting a housing for a gyro-stabilized device according to claim 4, characterized in that: The runner sand block (401) is provided with a positioning groove (405) matched with the positioning table (404).

6. A casting mold for a gyro-stabilized device housing according to claim 1, characterized in that: The lower mold frame (2) is provided with a liquid inlet (201) corresponding to the liquid inlet channel (406).

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