Mechanism sand preparation equipment with anti-wear function

Abstract

The application aims to provide a mechanism sand preparation equipment with anti-wear function, wherein the wear-resistant teeth are not easy to bend and break. The mechanism sand preparation equipment with anti-wear function comprises a centrifugal roller, a cylinder cover and a motor power shaft. The centrifugal roller is vertically arranged. A top wall of the centrifugal roller is provided with a material receiving port for receiving stone materials. A side wall of the centrifugal roller is provided with a material discharging port for discharging the stone materials. The cylinder cover covers the centrifugal roller. A plurality of transverse wear-resistant teeth are arranged on an inner side wall of the cylinder cover. The wear-resistant teeth are horizontally aligned with the material discharging port. The centrifugal roller is driven by the motor power shaft to rotate at a high speed. The stone materials are thrown along a tangent of the centrifugal roller at a high speed through the material discharging port and fall on the wear-resistant teeth to be broken into mechanism sand. The wear-resistant teeth are respectively arranged along the tangent of the centrifugal roller. The end head of each wear-resistant tooth directly receives the impact of the stone materials. The wear-resistant teeth bear the impact of the stone materials by the end head. The wear-resistant teeth are only axially pressed against the cylinder cover under the impact of the stone materials. The wear-resistant teeth are not subjected to lateral force like the background art. Therefore, the wear-resistant teeth are not easy to bend and break.

Description

Technical Field

[0001] This invention relates to the field of manufactured sand, and in particular to equipment for preparing manufactured sand. Background Technology

[0002] For example, in patent document CN 110369045 A Figure 1 As shown, the inner wall of the heat-resistant material 8 is provided with multiple radial wear-resistant teeth 7. A centrifugal drum (not shown in the figure) is installed inside the through hole 9 of the heat-resistant material 8. The top wall of the centrifugal drum has a receiving port to receive stone, and the side wall has a discharge port. The centrifugal drum is driven by a driving device (not shown in the figure) to rotate at high speed, throwing the stone along the tangent of the centrifugal drum through the discharge port onto the wear-resistant teeth 7 and crushing it into manufactured sand. The defect of the prior art is that the sides of the radial wear-resistant teeth 7 are constantly impacted by the high-speed flying stone, which easily leads to wear, bending, and breakage. Summary of the Invention

[0003] The present invention aims to provide a machine sand preparation device with wear-resistant function, whose wear-resistant teeth are not easily bent or broken.

[0004] A manufactured sand preparation device with wear-resistant function includes a centrifugal drum, a cylindrical cover, and a motor drive shaft. The centrifugal drum is vertically positioned, with a receiving port on the top wall to receive stone materials and a discharge port on the side wall for the stone materials to be thrown out. The cylindrical cover covers the centrifugal drum, and multiple transverse wear-resistant teeth extend from the inner side wall of the cylindrical cover. These wear-resistant teeth are horizontally aligned with the discharge port. The centrifugal drum is driven by the motor drive shaft to rotate at high speed, throwing the stone materials through the discharge port along the tangent of the centrifugal drum onto the wear-resistant teeth at high speed and crushing them into manufactured sand. Each of these wear-resistant teeth extends along the tangent of the centrifugal drum, with its end facing the impact of the stone materials.

[0005] Furthermore, these wear-resistant teeth are evenly distributed around the inner sidewall of the cylinder, and each wear-resistant tooth is inclined in the outward direction relative to the radius of the cylinder, with the inclined direction as the front, and the wear-resistant tooth rests against the rear sidewall of the front wear-resistant tooth.

[0006] Furthermore, each wear-resistant tooth has a row of teeth at the end of its rear sidewall, and each wear-resistant tooth that rests against the rear sidewall of the preceding wear-resistant tooth does not obstruct the row of teeth of the preceding wear-resistant tooth.

[0007] Furthermore, the shroud covers the centrifugal drum through the upper part of the shroud cavity, and the lower part of the shroud cavity covers the motor drive shaft. The lower part of the inner wall of the shroud gradually slopes inward from top to bottom until the bottom edge of the inner wall of the shroud is vertically aligned with the outer wall of the centrifugal drum. A material discharge port is left between the bottom edge of the inner wall of the shroud and the motor drive shaft.

[0008] Furthermore, the lower part of the inner wall of the cylinder is provided with multiple annular stone-embedding grooves arranged vertically to allow one end of the stone to be embedded.

[0009] Furthermore, the bottom of the annular stone-embedded groove has a transverse blade extending outwards, and the lower wall of the annular stone-embedded groove slopes downwards towards the groove opening.

[0010] Furthermore, in the annular stone-embedded groove, the upper groove wall slopes upward towards the groove opening and intersects with the lower groove wall to form the groove bottom.

[0011] The beneficial effect is that the wear-resistant teeth bear the impact of the stone with their own front end. Under the impact of the stone, the wear-resistant teeth will only compress the cylinder cover axially, and will not be subjected to lateral force as in the prior art, so there will be no tendency to bend or break. Attached Figure Description

[0012] Figure 1 This is a longitudinal cross-sectional view of the manufactured sand preparation apparatus of the present invention;

[0013] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0014] Figure 3 This is a cross-sectional view of the manufactured sand preparation apparatus of the present invention;

[0015] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0016] In the diagram: 2. Centrifugal drum; 3. Wear-resistant teeth; 4. Annular stone-embedded groove; 5. Cylinder cover; 6. Blade; 7. Discharge port; 8. Tooth arrangement; 9. Material receiving port; 10. Power shaft; 11. Motor; 12. Upper trough wall; 13. Lower trough wall; 14. Front end of the cylinder; 15. Discharge port; 16. Tangent; 17. Rear side wall of the wear-resistant teeth; 18. Bottom edge; 19. Outer side wall of the centrifugal drum; 20. Upper part of the inner side wall of the cylinder cover; 21. Lower part of the inner side wall of the cylinder cover. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to specific embodiments.

[0018] This preparation device is as follows: Figure 1 and Figure 3 As shown, the motor 11 is upright, with its power shaft 10 pointing vertically upwards. The centrifugal drum 2 is upright and mounted on the top of the power shaft 10 via its bottom wall; the top wall of the centrifugal drum 2 has a receiving port 9, and the lower part of its side wall has a discharge port 7. The cylindrical cover 5 is upright, with both its top and bottom open. The upper part of the cover cavity of the cylindrical cover 5 covers the centrifugal drum 2, and the lower part of the cover cavity of the cylindrical cover 5 covers the power shaft 10 of the motor 11. The lower part 21 of the inner side wall of the cylindrical cover gradually converges inwards from top to bottom until the bottom edge 18 of the inner side wall of the cylindrical cover 5 is vertically aligned with the outer side wall 19 of the centrifugal drum. A discharge port 15 is left between the bottom edge 18 of the inner side wall of the cylindrical cover 5 and the power shaft 10 of the motor 11.

[0019] like Figure 3 As shown, multiple wear-resistant teeth 3 extend from the upper part of the inner wall of the cylinder shroud 5 along multiple different tangents 16 of the centrifugal drum 2. These wear-resistant teeth 3 extend along the upper part 20 of the inner wall of the cylinder shroud (see... Figure 1 These wear-resistant teeth 3 are evenly distributed around the circumference and are horizontally aligned with the discharge port 7 of the centrifugal drum 2. Each wear-resistant tooth has a row of teeth 8 at its rear sidewall 17. Each wear-resistant tooth 3 is inclined in the extending direction relative to the radius of the cylinder cover 5, with the incline direction as the front. This wear-resistant tooth 3 rests against the rear sidewall 17 of the preceding wear-resistant tooth and does not obstruct the row of teeth 8 of the preceding wear-resistant tooth 3. Figure 2 As shown, the lower part of the inner wall of the cylindrical cover 5 is provided with multiple annular stone-embedding grooves 4 arranged side by side. The upper groove wall 12 and the lower groove wall 13 of each annular stone-embedding groove 4 meet to form the groove bottom. A horizontal blade 6 extends from the groove bottom. The upper groove wall 12 slopes upward towards the groove opening, and the lower groove wall 13 slopes downward towards the groove opening.

[0020] The worker starts motor 11 (see) Figure 1 The centrifugal drum 2 is driven to rotate by motor 11. For example... Figure 3 As shown, the worker adds the stone material into the rotating centrifugal drum 2 through the inlet 9. The centrifugal drum 2 rotates counterclockwise, throwing the stone material out through the outlet 7. The stone material flies out at high speed along the tangent 16 of the centrifugal drum 2 and hits the front end 14 of the wear-resistant tooth 3, breaking into multiple small stones and slowing down due to the impact. Some of these small stones fly out radially inward at low speed, hitting the stone material that flies out of the centrifugal drum 2 at high speed and crushing it into machine sand, which is discharged through the discharge port 15; some fly out radially outward at low speed, hitting the tooth 8 of the next wear-resistant tooth 3 and crushing it into machine sand, which is discharged through the discharge port 15; some fall vertically at low speed to the lower part 21 of the inner wall of the cylinder (see Figure 1 The small stone slides down the lower part 21 of the inner wall of the cylinder until one end is embedded in the multiple annular stone-embedding grooves 4 and fixed. The other end of the small stone protrudes from the opening of the annular stone-embedding groove 4, blocking the subsequent small stones from sliding down so that the subsequent small stones are broken into machine sand. On the other hand, the small stones embedded in the annular stone-embedding groove 4 will move towards the blade 6 in the annular stone-embedding groove 4 when impacted by the subsequent small stones sliding down. They will be ground and cut into machine sand by the blade 6 and slide down the lower wall 13 of the annular stone-embedding groove 4 to the discharge port 15 for discharge. At this time, the annular stone-embedding groove 4 is in an empty state, and the next batch of small stones can be embedded in the annular stone-embedding groove 4.

[0021] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. A manufactured sand preparation device with wear-resistant function, comprising a centrifugal drum, a cylindrical cover, and a motor drive shaft, wherein the centrifugal drum is vertically positioned, with a receiving port on the top wall to receive stone materials and a discharge port on the side wall for the stone materials to be thrown out, the cylindrical cover covering the centrifugal drum, and multiple transverse wear-resistant teeth extending from the inner side wall of the cylindrical cover, these wear-resistant teeth being horizontally aligned with the discharge port, the centrifugal drum being driven by the motor drive shaft to rotate at high speed, throwing the stone materials through the discharge port along the tangent of the centrifugal drum at high speed onto the wear-resistant teeth to be crushed into manufactured sand, characterized in that: These wear-resistant teeth extend tangentially along the centrifugal drum, with their ends facing the impact of the stones. These wear-resistant teeth are evenly distributed around the inner wall of the cylinder, with each wear-resistant tooth inclined in the direction of extension relative to the radius of the cylinder. With the inclined direction as the front, the wear-resistant tooth rests against the rear side wall of the preceding wear-resistant tooth. The end of the rear side wall of each wear-resistant tooth is provided with a row of teeth, and each wear-resistant tooth resting against the rear side wall of the preceding wear-resistant tooth does not obstruct the row of teeth of the preceding wear-resistant tooth.

2. The manufactured sand preparation equipment with anti-wear function as described in claim 1, characterized in that: The shroud covers the centrifugal drum through the upper part of the shroud cavity, and the lower part of the shroud cavity covers the motor drive shaft. The lower part of the inner wall of the shroud gradually slopes inward from top to bottom until the bottom edge of the inner wall of the shroud is vertically aligned with the outer wall of the centrifugal drum. A material discharge port is left between the bottom edge of the inner wall of the shroud and the motor drive shaft.

3. The manufactured sand preparation equipment with anti-wear function as described in claim 2, characterized in that: The lower part of the inner wall of the cylinder is provided with multiple annular stone-embedding grooves arranged vertically for one end of the stone to be embedded.

4. The manufactured sand preparation equipment with anti-wear function as described in claim 3, characterized in that: The bottom of the annular stone-embedded groove has a horizontal blade extending out, and the lower wall of the annular stone-embedded groove slopes downward toward the groove opening.

5. The manufactured sand preparation equipment with anti-wear function as described in claim 4, characterized in that: In the annular stone-embedded groove, the upper groove wall slopes upwards towards the groove opening and intersects with the lower groove wall to form the groove bottom.

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