Molding sand crushing device for brake disc casting

Abstract

The utility model discloses a molding sand crushing device for brake disc casting, which relates to the technical field of brake disc casting and comprises a crushing device, a molding sand crushing mechanism is mounted in the crushing device, and a molding sand crushing dustproof mechanism is mounted above the crushing device. The molding sand crushing mechanism comprises a crushing device installed in the crushing device, the middle of the crushing device is directly connected with a connecting roller, and a circular ring is arranged outside the crushing device. According to the molding sand crushing device, the crushing rollers and the material turning blades are arranged on the upper portion in the crushing device and connected with the motor through the connecting shaft, the motor rotates to drive the crushing rollers and the material turning blades to rotate, and molding sand can be crushed in the rotating process of the crushing rollers; and by arranging the material turning blades, the molding sand accumulated above the sand screening disc can be continuously lifted, and the molding sand can be effectively prevented from being accumulated and agglomerated.

Description

Technical Field

[0001] This utility model relates to the field of molding sand crushing technology, specifically to a molding sand crushing device for brake disc casting. Background Technology

[0002] Molding sand is a material used to manufacture casting molds. Through the mixing of sand grains, binders and additives, molding sand forms the shape of the casting during the casting process and withstands the impact of high-temperature molten metal. At the same time, after the high-temperature molten metal is poured into the mold, the molding sand needs to have good air permeability so that gas can escape and prevent defects such as porosity and incomplete filling in the casting. For this purpose, a molding sand crushing device for brake disc casting is proposed.

[0003] In the prior art, a casting sand crushing device with publication number CN220028570U includes a crusher body. The upper surface of the crusher body of this utility model has a feed inlet. A pretreatment mechanism for screening casting sand is clamped inside the feed inlet. Positioning mechanisms that limit the movement range of the pretreatment mechanism are installed on both the front and rear sides of the feed inlet. The casting sand introduced into the feed inlet is crushed by the pretreatment mechanism, so that the feed inlet is less likely to be blocked when the casting sand is introduced into the feed inlet, thereby improving the crushing efficiency of the device.

[0004] In the existing process of using molding sand crushing equipment for brake disc casting, substandard molding sand crushing will affect the subsequent performance of the molding sand, thereby affecting the air permeability and surface smoothness of the molding sand, as well as causing poor heat conduction. In addition, the molding sand particles will fly up continuously during crushing and turning, causing raw materials to be scattered around the crushing equipment. Therefore, those skilled in the art have provided a molding sand crushing equipment for brake disc casting to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a molding sand crushing device for brake disc casting, so as to solve the problems of accurate crushing and preventing the crushed molding sand from falling off in the existing molding sand crushing devices for brake disc casting mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A molding sand crushing device for brake disc casting includes:

[0008] A crushing device, wherein a molding sand crushing mechanism is installed inside the crushing device, and a molding sand crushing dust prevention mechanism is installed above the crushing device;

[0009] The molding sand crushing mechanism includes:

[0010] The crushing device installed inside the crushing device has a connecting roller directly connected in the middle, and a ring is provided on the outside of the crushing device. Sand-passing holes are embedded in the inside of the ring at intervals. A discharge chute is provided on one side of the sand-passing holes. A sand-screening disc is installed above the crushing device, and a crushing roller is installed above the sand-screening disc. Turning blades are installed at intervals in the middle of the crushing roller.

[0011] The molding sand crushing dust prevention mechanism includes:

[0012] A dust cover is installed above the crushing device. The surface of the dust cover is provided with transparent viewing windows at equal intervals, and the inside of the dust cover is provided with shrink racks. A feed inlet is provided through one side of the shrink racks. A handle is provided on the top of the dust cover.

[0013] Preferably, a motor is arranged at the top center of the crushing device, and the motor is located in the middle of the dust cover. A fixing frame is installed in a ring at the bottom of the motor, and a sand outlet is arranged in a ring at the bottom of the crushing device.

[0014] Preferably, the connecting roller passes through the sand screening disc and is connected to the bottom center of the motor, and the crushing roller and the turning blade are located above the sand screening disc, and a connecting shaft is connected to one side of both the crushing roller and the turning blade, and the connecting shaft is directly connected to the four sides above the connecting roller.

[0015] Preferably, the surface of the sand screening disc is perforated with a number of round holes, and the discharge chute is inclined and corresponds to the position of the sand outlet.

[0016] Preferably, the dust cover is retracted and extended by a retractable frame, and the dust cover moves around the bottom of the motor. The fixing frame is located at the bottom of the dust cover, and one end of the fixing frame is fixedly installed on the upper inner side of the crushing device.

[0017] Preferably, the crushing roller and the turning blade are rotatably connected to the motor via a connecting shaft, and the crushing device is rotatably connected to the motor via a connecting shaft.

[0018] Preferably, a circular groove is provided at the center of the lower part of the crushing device, and the edge of the circular groove and the edge of the circular hole of the sieve disc are on the same horizontal line.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model features a crushing roller and a turning blade installed inside the crushing device. The crushing roller and the turning blade are connected to a motor via a connecting shaft. The rotation of the motor drives the crushing roller and the turning blade to rotate. During the rotation of the crushing roller, the molding sand can be crushed. The turning blade continuously lifts the molding sand accumulated above the sand screen, effectively preventing the molding sand from accumulating and clumping. The circular holes on the surface of the sand screen allow molding sand of a certain particle size to enter the lower part of the crushing device. A circular groove is provided inside the lower part of the crushing device, and a crushing device is installed inside the groove. The crushing device further crushes the molding sand, making it sufficiently fine. The molding sand is then discharged through the sand passage hole and the discharge chute, ensuring that the molding sand is crushed to the required standard and fully utilizing its performance.

[0021] 2. This utility model features a dust cover installed above the crushing device. The dust cover retracts via a retractable frame to cover the top of the crushing device. The surface of the dust cover is equipped with a viewing window and a feed inlet. The viewing window and feed inlet allow operators to easily observe the internal condition of the crushing device, and the feed inlet facilitates the real-time addition of raw materials. This design effectively blocks dust during molding sand processing, prevents raw materials from flying out, and keeps the area around the crushing device clean. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the crushing device of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure below the motor of this utility model;

[0025] Figure 4 This is a schematic diagram of the dustproof device structure of this utility model.

[0026] 1. Crushing device; 11. Crushing device; 12. Connecting roller; 13. Discharge chute; 14. Sand passage hole; 2. Motor; 21. Connecting shaft; 22. Crushing roller; 23. Turning blade; 3. Dust cover; 31. Viewing window; 32. Shrink frame; 33. Feed inlet; 34. Handle; 4. Fixing frame; 5. Sand screen; 6. Sand outlet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Combined with appendix Figures 1-4 In this embodiment, a molding sand crushing device for brake disc casting includes a crushing device 1. A molding sand crushing mechanism is installed inside the crushing device 1, and a molding sand crushing dust prevention mechanism is installed above the crushing device 1. The molding sand crushing mechanism includes: a crushing device 11 installed inside the crushing device 1; a connecting roller 12 is directly connected to the middle of the crushing device 11; a ring is provided on the outside of the crushing device 11; and sand-passing holes 14 are interspersed inside the ring. A discharge trough 13 is provided on one side of the sand-passing holes 14; a crushing roller 22 and a turning blade 23 are rotatably connected to a motor 2 through a connecting shaft 21, and the crushing device 11 is rotatably connected to the motor 2 through the connecting shaft 21; the connecting roller 12 passes through a sand-screening disc 5 and is connected to the bottom middle of the motor 2; the crushing roller 22 and the turning blade 23 are located above the sand-screening disc 5; and a connecting shaft 21 is connected to one side of both the crushing roller 22 and the turning blade 23. The connecting shaft 21 is directly connected to the four sides above the connecting roller 12.

[0029] like Figure 3 As shown, a motor 2 is installed above the crushing device 1, and a connecting roller 12 is connected below the motor 2. Connecting shafts 21 are provided on four sides above the connecting roller 12. Crushing rollers 22 and turning blades 23 are connected to one side of the connecting shafts 21 respectively. The crushing rollers 22 and turning blades 23 are rotatably connected through the connecting shafts 21 and the motor 2. During rotation, the crushing rollers 22 can crush the molding sand above the sand screen 5, making the molding sand finer. The turning blades 23 can continuously lift up the accumulated molding sand during rotation, preventing the molding sand from accumulating and clumping, and also preventing the molding sand from blocking the surface of the sand screen 5 after being compressed. A circular groove is provided at the bottom inside the crushing device 1. A crushing device 11 is installed inside the groove. The crushing device 11 is directly connected to the motor 2 through the connecting rollers 12. The initially crushed molding sand enters the area around the crushing device 11 through the sand screen 5. The crushing device 11 can further refine and crush the molding sand. Then the molding sand is discharged through the sand passage hole 14 and the discharge chute 13, making the molding sand fully refined.

[0030] like Figure 4As shown, the dustproof mechanism for molding sand crushing includes: a dust cover 3 installed above the crushing device 1, transparent viewing windows 31 are equidistantly arranged on the surface of the dust cover 3, and a shrink rack 32 is spaced inside the dust cover 3, and a feed inlet 33 is provided through one side of the shrink rack 32, and a handle 34 is provided on the top of the dust cover 3; the dust cover 3 is expanded and contracted by the shrink rack 32, and the dust cover 3 moves around the bottom of the motor 2, and a fixing frame 4 is located at the bottom of the dust cover 3, with one end of the fixing frame 4 fixedly installed on the upper inner side of the crushing device 1.

[0031] like Figure 4 As shown, a dust cover 3 is installed on the top of the crushing device 1. A shrink rack 32 is provided in the middle of the dust cover 3. The dust cover 3 can be expanded or contracted by the shrink rack 32 so that the dust cover 3 can be expanded to prevent dust. At the same time, a viewing window 31 and a feed inlet 33 are provided on the surface of the dust cover 3. The feed inlet 33 allows the raw material to enter the inside of the equipment, while the viewing window 31 facilitates the observation of the operation inside the equipment.

[0032] like Figure 1 As shown, a motor 2 is installed in the middle of the top of the crushing device 1, and the motor 2 is located in the middle of the dust cover 3. A fixing frame 4 is installed in a ring at the bottom of the motor 2, and a sand outlet 6 is provided in a ring at the bottom of the crushing device 1. The surface of the sand screen 5 is perforated with several round holes, and the discharge chute 13 is inclined and corresponds to the position of the sand outlet 6.

[0033] like Figure 2 As shown, a sand sieve 5 is installed above the crushing device 1, and a crushing roller 22 is installed above the sand sieve 5. A turning blade 23 is installed in the middle of the crushing roller 22. A circular groove is provided at the center of the lower part of the crushing device 1, and the edge of the circular groove and the edge of the circular hole of the sand sieve 5 are on the same horizontal line.

[0034] like Figure 2 As shown, the surface of the sand screening disc 5 is provided with several round holes, and the surface of the sand passage hole 14 is also provided with round holes. The round holes of the sand screening disc 5 are slightly larger than the round holes of the sand passage hole 14, so as to filter and screen molding sand of different sizes.

[0035] Working principle:

[0036] First, the prepared raw materials are poured into the crushing device 1. When the equipment starts running, the dust cover 3 retracts and expands through the middle shrink frame 32. When the dust cover 3 is fully expanded, it can cover the top of the crushing device 1. During the rotation, the crushing roller 22 can continuously crush the molding sand above the sand screen 5, making the molding sand crushed and refined. The turning blade 23 can continuously lift and turn the accumulated molding sand during the rotation. The crushed molding sand enters the lower part of the crushing device 1 through the round hole on the surface of the sand screen 5. The crushing device 11 further crushes the incoming molding sand by rotating the motor 2. The crushed molding sand is discharged through the sand passage 14. The discharged molding sand is discharged through the discharge chute 13 and the sand outlet 6. The discharged molding sand has been refined to meet the standard. This completes the entire process of using the molding sand crushing device for brake disc casting.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A molding sand for brake disc casting pulverizing device, characterized by, It includes a crushing device (1), the crushing device (1) is equipped with a molding sand crushing mechanism inside, and a molding sand crushing dust prevention mechanism is installed above the crushing device (1); The molding sand crushing mechanism includes: The crushing device (11) is installed inside the crushing device (1). A connecting roller (12) is directly connected in the middle of the crushing device (11). A ring is provided on the outside of the crushing device (11). Sand holes (14) are inlaid at intervals inside the ring. A discharge chute (13) is provided on one side of the sand holes (14). A sand screen (5) is installed above the crushing device (1). A crushing roller (22) is installed above the sand screen (5). Turning blades (23) are installed at intervals in the middle of the crushing roller (22). The molding sand crushing dust prevention mechanism includes: A dust cover (3) is installed above the crushing device (1). The surface of the dust cover (3) is provided with transparent viewing windows (31) at equal intervals. The interior of the dust cover (3) is provided with shrink racks (32) at intervals. A feed inlet (33) is provided through one side of the shrink racks (32). A handle (34) is provided on the top of the dust cover (3).

2. The molding sand crushing device for brake disc casting according to claim 1, characterized in that: The crushing device (1) has a motor (2) located in the middle of the top, and the motor (2) is located in the middle of the dust cover (3). A fixing frame (4) is installed in a ring at the bottom of the motor (2). A sand outlet (6) is provided in a ring at the bottom of the crushing device (1).

3. The molding sand crushing device for brake disc casting according to claim 1, characterized in that: The connecting roller (12) passes through the sand screening disc (5) and is connected to the bottom middle of the motor (2). The crushing roller (22) and the turning blade (23) are located above the sand screening disc (5). A connecting shaft (21) is connected to one side of both the crushing roller (22) and the turning blade (23). The connecting shaft (21) is directly connected to the four sides above the connecting roller (12).

4. The molding sand crushing device for brake disc casting according to claim 2, characterized in that: The surface of the sand screening disc (5) is perforated with several round holes, and the discharge chute (13) is inclined and corresponds to the position of the sand outlet (6).

5. The molding sand crushing device for brake disc casting according to claim 2, characterized in that: The dust cover (3) is retracted and extended by the retractable frame (32), and the dust cover (3) moves around the bottom of the motor (2), and the fixing frame (4) is located at the bottom of the dust cover (3), with one end of the fixing frame (4) fixedly installed on the upper inner side of the crushing device (1).

6. The molding sand crushing device for brake disc casting according to claim 3, characterized in that: The crushing roller (22) and the turning blade (23) are rotatably connected to the motor (2) via the connecting shaft (21), and the crushing device (11) is rotatably connected to the motor (2) via the connecting shaft (21).

7. The molding sand crushing device for brake disc casting according to claim 1, characterized in that: The lower center of the pulverizing device (1) is provided with a circular recess, and the edge of the circular recess and the edge of the sand screening disc (5) are located on the same horizontal line.

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