Modular wear resistant propeller casting sand box device

Abstract

The utility model discloses a modular wear -resisting's propeller casting sand box device relates to propeller casting field, include: sand box body, cooling mechanism, the cooling mechanism includes cooling pipe, cooling pipe installs in sand box body inside, pivot, pivot rotation is connected in sand box body inside, the propeller is equipped with outside the pivot, wherein, the propeller below is provided with the supporting plate, the supporting plate below is fixed with the conical cover, the supporting plate and conical cover slidingly arranged in the outside of pivot, the conical cover bottom end is provided with drive mechanism, the fixed disc is fixed in the outside bottom of pivot, the fixed disc top and conical cover inside top end are connected with electric push rod motor drive pivot and propeller in the sandstone and carry out rotation, stir the sand in sand box body, and sand is constantly rolling, contacts air to cool rapidly, and the sand that rolls and cooling pipe contact, accelerate cooling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of propeller casting, and in particular to a modular wear-resistant propeller casting sand box device. Background Technology

[0002] Propellers are widely used in ships. A propeller is a type of propulsion device that uses rotating blades in water to convert the power of an engine into thrust. Propellers are typically manufactured using sand casting. A propeller can consist of two or more blades connected to a hub. The blades are attached to the outer circumference of the hub, which has coaxial mounting holes for fitting onto a power shaft driven by the engine, allowing the hub to rotate with the power shaft.

[0003] For example, a patent entitled "A Propeller Casting Equipment" (patent application number: CN202011570443.6) discloses a propeller casting equipment in which a propeller is fitted onto a core tube, and the drive component moves to make the core tube rotate, which in turn drives the propeller to rotate, stirring the sand in the sand box. The sand tumbles continuously and comes into contact with air for rapid cooling. However, even if the sand is tumbled continuously, some areas of sand that are not tumbled will still have heat inside. At the same time, if only air cooling is used, the cooling efficiency needs to be improved.

[0004] Therefore, it is necessary to propose a modular, wear-resistant propeller casting sand box device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a modular and wear-resistant propeller casting sand box device to solve the problem that even when the sand is continuously tumbled, heat will still exist in some areas of the sand that are not tumbled, and the cooling efficiency needs to be improved if only air cooling is used.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular, wear-resistant propeller casting sand box device, comprising:

[0007] Sand box body;

[0008] Cooling mechanism; the cooling mechanism includes cooling pipes, which are installed inside the sand box body;

[0009] A rotating shaft is rotatably connected to the inside of the sand box body, and a propeller is sleeved on the outside of the rotating shaft;

[0010] A support plate is provided below the propeller, and a conical cover is fixed below the support plate. The support plate and the conical cover are slidably disposed on the outside of the rotating shaft.

[0011] A drive mechanism is provided at the bottom of the conical cover.

[0012] Preferably, a fixed plate is fixed to the bottom outer side of the rotating shaft, and an electric push rod is connected between the top of the fixed plate and the top of the inner side of the conical cover.

[0013] Preferably, the tip of the conical cover is positioned upwards.

[0014] Preferably, the top of the support plate is fixed with a groove, and the bottom of the propeller is inserted into the groove;

[0015] The support plate is provided with a fixing screw on the outside, and one end of the fixing screw is pressed against the outside of the propeller.

[0016] Preferably, the propeller includes a hub and blades, with the blades disposed outside the hub.

[0017] Preferably, a limiting block is fixed on the outside of the rotating shaft, and a corresponding slot is formed inside the propeller hub.

[0018] Preferably, a sand discharge port is provided at the bottom of one side of the sand box body;

[0019] The sand box body is fixed with support legs at the four corners of its bottom end;

[0020] The cooling pipe extends out of the sand box body at both ends, and the two extended ends are respectively connected to the liquid inlet and the liquid outlet.

[0021] The technical effects and advantages of this utility model are as follows:

[0022] 1. The motor drives the shaft and propeller to rotate inside the sand, stirring the sand in the sand box. The sand tumbles continuously, coming into contact with the air for rapid cooling. The tumbling sand also comes into contact with the cooling pipes, accelerating the cooling efficiency.

[0023] 2. In the actual operation of this utility model, after cooling is completed, the electric push rod drives the conical cover and support plate to rise. Excess sand will fall onto the upper surface of the conical cover and slowly fall to the bottom of the sand box body along the slope of the conical cover, avoiding the sand from accumulating and affecting the removal of the propeller. As it rises, the sand can be isolated by the conical cover and the propeller to avoid the influence of residual heat.

[0024] 3. The groove can fix the bottom of the propeller to prevent the propeller from separating from the support plate when rotating. The support plate is equipped with fixing screws on the outside. One end of the fixing screw is pressed against the outside of the propeller to further enhance the fixing effect of the propeller and prevent it from loosening due to vibration or other reasons during the casting process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the modular wear-resistant propeller casting sand box device of this utility model.

[0026] Figure 2 This is a schematic diagram of the conical cover of this utility model.

[0027] Figure 3 This is a schematic diagram of the structure of the drain port of this utility model.

[0028] In the diagram: 1. Sand box body; 2. Liquid inlet; 3. Support leg; 4. Cooling pipe; 5. Shaft; 6. Propeller hub; 7. Propeller blade; 8. Conical cover; 9. Sand discharge port; 10. Fixing plate; 11. Electric push rod; 12. Support plate; 13. Groove; 14. Fixing screw; 15. Liquid discharge port. Detailed Implementation

[0029] This utility model provides, for example Figures 1-3 The modular, wear-resistant propeller casting sand box device shown includes:

[0030] The sand box body 1 is the main frame of the entire device, used to hold the sand and related components required for casting. Its structural design must meet the requirements of the casting process and ensure sufficient strength and stability. The material of the sand box body 1 is usually a high-strength, corrosion-resistant, wear-resistant, and high-temperature resistant material, such as cast iron or steel plate. The height is generally designed to be 1.5 times the height of the casting (i.e., higher than the propeller height), and the width must allow sufficient space for workers to operate.

[0031] A sand discharge port 9 is provided at the bottom of one side of the sand box body 1 to discharge the used sand, facilitating subsequent cleaning and recycling. Support legs 3 are fixed at the four corners of the bottom of the sand box body 1. The function of the support legs 3 is to raise the sand box body 1 to a certain height, making it more stable and facilitating related operations by operators below.

[0032] The cooling mechanism includes a cooling pipe 4, which is installed inside the sand box body 1. Its function is to cool the high-temperature environment inside the sand box during the casting process, preventing the sand box body 1 from deforming or being damaged due to high temperatures. It also accelerates the cooling rate of the castings, improving production efficiency. Both ends of the cooling pipe 4 extend out of the sand box body 1, and are connected to an inlet 2 and an outlet 15, respectively. Coolant is injected into the cooling pipe 4 through the inlet 2. The coolant flows within the cooling pipe 4, absorbing heat from the sand box, and is then discharged from the outlet 15, thus achieving the cooling of the sand box body 1.

[0033] The rotating shaft 5 is rotatably connected inside the sand box body 1. A propeller is sleeved on the outside of the rotating shaft 5. A motor is fixed at the bottom of the sand box body 1. The drive shaft of the motor is fixedly connected to one end of the rotating shaft 5.

[0034] Sand is placed inside the sand box body 1. The motor drives the rotating shaft 5 and the propeller to rotate inside the sand, stirring the sand inside the sand box body 1. The sand tumbles continuously, comes into contact with the air to cool quickly, and the tumbling sand comes into contact with the cooling pipe 4 to accelerate the cooling efficiency.

[0035] A support plate 12 is provided below the propeller, and a conical cover 8 is fixed below the support plate 12. The support plate 12 and the conical cover 8 are slidably disposed on the outside of the rotating shaft 5; a drive mechanism is provided at the bottom end of the conical cover 8.

[0036] A fixed plate 10 is fixed to the bottom outer side of the rotating shaft 5, and an electric push rod 11 is connected between the top of the fixed plate 10 and the top of the inner side of the conical cover 8.

[0037] The pointed end of the cone-shaped cover 8 is set upwards.

[0038] In the actual operation of this utility model, after cooling is completed, the electric push rod 11 drives the conical cover 8 and the support plate 12 to rise. Excess sand will fall onto the upper surface of the conical cover 8 and slowly fall to the bottom of the sand box body 1 along the slope of the conical cover 8, so as to avoid the sand from accumulating together and affecting the removal of the propeller. As it rises, the sand can be isolated by the conical cover 8 and the propeller to avoid the influence of residual heat.

[0039] The top of the support plate 12 is fixed with a groove 13, and the bottom of the propeller is inserted into the groove 13.

[0040] The groove 13 can fix the bottom of the propeller to prevent the propeller and the support plate 12 from separating when rotating. The support plate 12 is provided with a fixing screw 14. One end of the fixing screw 14 is pressed against the outside of the propeller to further enhance the fixing effect of the propeller and prevent it from loosening due to vibration or other reasons during the casting process.

[0041] The propeller includes a hub 6 and blades 7. Blades 7 are located on the outside of the hub 6. A limit block is fixed on the outside of the shaft 5. A slot corresponding to the limit block is opened inside the hub 6.

[0042] The cooling pipe 4 extends out of the sand box body 1 at both ends, and the two extended ends are respectively connected to the liquid inlet 2 and the liquid outlet 15 for the inlet and outlet of coolant.

Claims

1. A modular, wear-resistant propeller casting sand box device, characterized in that: include: Sand box body (1); Cooling mechanism; The cooling mechanism includes a cooling pipe (4), which is installed inside the sand box body (1); A rotating shaft (5) is rotatably connected to the inside of the sand box body (1), and a propeller is sleeved on the outside of the rotating shaft (5); A support plate (12) is provided below the propeller, and a conical cover (8) is fixed below the support plate (12). The support plate (12) and the conical cover (8) are slidably disposed on the outside of the rotating shaft (5). The bottom end of the conical cover (8) is provided with a driving mechanism.

2. The modular wear-resistant propeller casting sand box device according to claim 1, characterized in that: A fixed plate (10) is fixed to the bottom outer side of the rotating shaft (5), and an electric push rod (11) is connected between the top of the fixed plate (10) and the top of the inside of the conical cover (8).

3. The modular wear-resistant propeller casting sand box device according to claim 2, characterized in that: The pointed end of the conical cover (8) is positioned upwards.

4. The modular wear-resistant propeller casting sand box device according to claim 3, characterized in that: The top of the support plate (12) is fixed with a groove (13), and the bottom of the propeller is inserted into the groove (13); A fixing screw (14) is provided on the outside of the support plate (12), and one end of the fixing screw (14) is pressed against the outside of the propeller.

5. A modular wear-resistant propeller casting sand box device according to claim 1, characterized in that: The propeller includes a hub (6) and blades (7), with the blades (7) disposed on the outside of the hub (6).

6. The modular wear-resistant propeller casting sand box device according to claim 1, characterized in that: A limiting block is fixed on the outside of the rotating shaft (5), and a corresponding slot is opened inside the propeller hub (6).

7. The modular wear-resistant propeller casting sand box device according to claim 1, characterized in that: A sand discharge port (9) is provided at the bottom of one side of the sand box body (1); The sand box body (1) has four supporting legs (3) fixed at the bottom corners; The cooling pipe (4) extends out of the sand box body (1) at both ends, and the two extended ends are respectively connected to the liquid inlet (2) and the liquid outlet (15).

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