Casting waste sand crushing device

Abstract

The utility model discloses a waste sand crushing device for casting, which comprises a crushing box, a feed hopper, a power motor, a power belt wheel, an auxiliary belt wheel, a rotating main shaft, a rotating crushing group, a transmission belt and a fixing frame, the crushing box is fixed on the fixing frame, the feed hopper is arranged at the top of the crushing box, and a discharge port is arranged at the bottom of the crushing box. The power motor is connected to the fixing frame, a power rod is connected with the power belt wheel, the rotating main shaft is movably connected into the smashing box, one end of the rotating main shaft penetrates through the bottom of the smashing box to be connected with the auxiliary belt wheel, and the power belt wheel is in transmission connection with the auxiliary belt wheel through a transmission belt. The waste sand crushing device for casting is simple in structure, convenient to use and practical, the beating step is arranged on the beating crushing block, meanwhile, the beating inclined face is arranged on the beating step, the beating angle is increased, meanwhile, the beating inclined face can throw crushed raw materials upwards, and the purpose that the materials fall and are repeatedly beaten and crushed again is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of waste sand crushing technology, specifically relating to a waste sand crushing device for foundry. Background Technology

[0002] This is a granular refractory material used in casting production to prepare molding sand and core sand. When clay is used as the molding sand binder, approximately one ton of new sand is needed to produce one ton of qualified castings, resulting in a huge consumption of casting sand in sand casting production. While waste casting sand needs to be crushed and reused after recycling, traditional pendulum crushers, although fast, often fail to achieve the desired crushing effect. The crushed sand contains many large-diameter particles, necessitating repeated crushing, which consumes significant amounts of electricity and increases production costs. Therefore, we provide a waste casting sand crushing device to solve these technical problems. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a waste sand crushing device for foundry. It has a simple structure and is convenient and practical. By setting a striking step on the crushing block and a striking inclined surface on the striking step, the striking angle is increased. At the same time, the striking inclined surface can make the crushed raw material fly upward, so that the material can fall and be repeatedly crushed.

[0004] A waste sand crushing device for foundry uses includes a crushing box, a feed hopper, a power motor, a power pulley, an auxiliary pulley, a rotating main shaft, a rotating crushing assembly, a transmission belt, and a fixed frame. The crushing box is fixed on the fixed frame, the feed hopper is located at the top of the crushing box, and a discharge port is provided at the bottom of the crushing box. The power motor is connected to the fixed frame, and its power rod is connected to the power pulley. The rotating main shaft is movably connected inside the crushing box, and one end passes through the bottom of the crushing box and is connected to the auxiliary pulley. The power pulley is connected to the auxiliary pulley via the transmission belt. A plurality of the rotary crushing units are connected to a rotating main shaft via an auxiliary pulley drive. Each rotary crushing unit includes a turntable, a striking rod, a rotating shaft, a lower plate, and a guide ring. The turntable and the lower plate are connected to the rotating main shaft. The turntable is positioned above the lower plate. A plurality of rotating shafts are connected between the turntable and the lower plate. One end of the striking rod is connected to a striking crushing block, and the other end is movably connected to a corresponding rotating shaft. The guide ring is connected to the inner wall of the crushing chamber. The striking crushing block is positioned between the turntable and the guide ring.

[0005] Preferably, the side of the impact crushing block that impacts the material is provided with several impact steps.

[0006] Preferably, the striking step is provided with a striking ramp.

[0007] Preferably, both the turntable and the guide ring are provided with guide slopes.

[0008] Preferably, an L-shaped groove is provided on the guide slope of the turntable.

[0009] Preferably, a baffle ring is connected to the lower plate. Beneficial effects

[0010] (1) The present invention provides a waste sand crushing device for casting. It has a simple structure and is convenient and practical. By setting a striking step on the crushing block and a striking inclined surface on the striking step, the striking angle is increased. At the same time, the striking inclined surface can make the crushed raw material fly upward, so that the material falls and is repeatedly crushed.

[0011] (2) The waste sand crushing device for casting of this utility model sets an L-shaped groove on the guide slope of the turntable so that the guide slope can shape and guide the material out while hitting the casting sand again, thereby increasing the impact surface and improving the crushing efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the waste sand crushing device;

[0013] Figure 2 This is a schematic diagram of the rotary crushing unit.

[0014] Figure 3 This is a schematic diagram of the structure of the impact crushed block;

[0015] Figure 4 This is a schematic diagram of the turntable structure;

[0016] 1-Grinding box, 2-Feed hopper, 3-Discharge port, 4-Power motor, 5-Power pulley, 6-Auxiliary pulley, 7-Rotating main shaft, 8-Rotating grinding assembly, 81-Turntable, 82-Impact rod, 83-Rotating shaft, 84-Lower plate, 85-Impact crushed blocks, 86-Guide ring, 87-Impact step, 88-Impact inclined plane, 89-Guide inclined plane, 810-L-shaped groove, 811-Blocking ring. Detailed Implementation

[0017] The embodiments of this utility model are further described below with reference to the accompanying drawings. Example

[0018] like Figures 1 to 4As shown; a waste sand crushing device for foundry uses includes a crushing box 1, a feed hopper 2, a power motor 4, a power pulley 5, an auxiliary pulley 6, a rotating main shaft 7, rotating crushing units 8, a transmission belt, and a fixed frame. The crushing box 1 is fixed on the fixed frame, the feed hopper 2 is located on the top of the crushing box 1, and the bottom of the crushing box 1 has a discharge port 3. The power motor 4 is connected to the fixed frame, and the power rod is connected to the power pulley 5. The rotating main shaft 7 is movably connected inside the crushing box 1, and one end passes through the bottom of the crushing box 1 and is connected to the auxiliary pulley 6. The power pulley 5 is connected to the auxiliary pulley 6 via the transmission belt. Several rotating crushing units 8 are connected to the rotating main shaft 7. Each rotating crushing unit 8 includes a turntable 81, a striking rod 82, a rotating shaft 83, a lower plate 84, and a guide ring. 86. The turntable 81 and the lower plate 84 are connected to the rotating main shaft 7. The turntable 81 is positioned above the lower plate 84. Several rotating shafts 83 are connected between the turntable 81 and the lower plate 84. One end of the striking rod 82 is connected to the striking crushing block 85, and the other end is movably connected to the corresponding rotating shaft 83. The guide ring 86 is connected to the inner wall of the crushing box 1. The striking crushing block 85 is positioned between the turntable 81 and the guide ring 86. Several striking steps 87 are provided on the side of the striking crushing block 85 that impacts the material. A striking inclined surface 88 is provided on the striking step 87. A guiding inclined surface 89 is provided on both the turntable 81 and the guide ring 86. An L-shaped groove 810 is provided on the guiding inclined surface 89 of the turntable 81. A baffle ring 811 is connected to the lower plate 84.

[0019] The power motor 4 drives the power pulley 5 to rotate, which in turn drives the auxiliary pulley 6 to rotate via a transmission belt. The auxiliary pulley 6 drives the main shaft 7 to rotate, which in turn drives the turntables 81 and lower plates 84 of several rotating crushing units 8 to rotate. The turntables 81 and lower plates 84 drive the rotating shaft 83 to rotate around the main shaft 7. The rotating shaft 83 drives the impact crushing blocks 85 to rotate around the main shaft 7 via the impact rod 82. The material is fed into the crushing box 1 through the feed hopper 2 and guided by the rotating impact crushing blocks 85 along the guide slope 89 on the turntable 81 and guide ring 86. The material is crushed by the impact during rotation. When block 85 is struck, the material is crushed by the vertical surface of the striking step 87 and the striking inclined surface 88. After being struck by the inclined surface 88, the material is thrown diagonally upwards and vertically towards the inner wall of the crushing box 1. After being thrown diagonally upwards, the material rolls back onto the striking crushing block 85 via the guide inclined surface 89 and is crushed again. As the material rolls towards the striking crushing block 85 via the guide inclined surface 89, the L-shaped groove 810 on the guide inclined surface 89 of the turntable 81 will strike and throw the material back towards the inner wall of the crushing box 1. This repeated striking and crushing of the sand reduces the generation of large sand particles.

[0020] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A waste sand crushing device for foundry, characterized in that: The system includes a crushing box (1), a feeding hopper (2), a power motor (4), a power pulley (5), an auxiliary pulley (6), a rotating main shaft (7), rotating crushing units (8), a transmission belt, and a fixed frame. The crushing box (1) is fixed on the fixed frame. The feeding hopper (2) is located on the top of the crushing box (1). The bottom of the crushing box (1) has a discharge port (3). The power motor (4) is connected to the fixed frame, and the power rod is connected to the power pulley (5). The rotating main shaft (7) is movably connected inside the crushing box (1), and one end passes through the bottom of the crushing box (1) and is connected to the auxiliary pulley (6). The power pulley (5) is connected to the auxiliary pulley (6) via a transmission belt. Several rotating crushing units (8) are connected to the auxiliary pulley (6). The rotary crushing unit (8) is connected to the rotating main shaft (7); the rotary crushing unit (8) includes a turntable (81), a striking rod (82), a rotating shaft (83), a lower plate (84), and a guide ring (86). The turntable (81) and the lower plate (84) are connected to the rotating main shaft (7). The turntable (81) is located above the lower plate (84). Several rotating shafts (83) are connected between the turntable (81) and the lower plate (84). One end of the striking rod (82) is connected to the striking crushing block (85), and the other end is movably connected to the corresponding rotating shaft (83). The guide ring (86) is connected to the inner wall of the crushing box (1). The striking crushing block (85) is located between the turntable (81) and the guide ring (86).

2. The waste sand crushing device for foundry as described in claim 1, characterized in that: The impact crushing block (85) has several impact steps (87) on one side of the material it impacts.

3. The waste sand crushing device for foundry as described in claim 2, characterized in that: The striking step (87) is provided with a striking ramp (88).

4. The waste sand crushing device for foundry as described in claim 3, characterized in that: Both the turntable (81) and the guide ring (86) are provided with guide slopes (89).

5. The waste sand crushing device for foundry as described in claim 4, characterized in that: The turntable (81) has an L-shaped groove (810) on its guide slope (89).

6. The waste sand crushing device for foundry as described in claim 5, characterized in that: A baffle ring (811) is connected to the lower plate (84).

Images