Crushing device for precoated sand regeneration

Abstract

The utility model relates to the technical field of crushing devices, and discloses a crushing device for precoated sand regeneration. The crushing device for precoated sand regeneration comprises a box body, a decomposition mechanism, a crushing mechanism, a fine grinding mechanism, a material guide bottom plate and a motor, according to the crushing device for precoated sand regeneration, through three-stage linkage treatment of the decomposition mechanism, the crushing mechanism and the fine grinding mechanism, the sand mold crushing efficiency is improved by 3-5 times compared with traditional single-stage crushing, and the crushing efficiency is improved by 3-5 times; the processing capacity can reach 8-12 tons per hour, mechanical extrusion type crushing is adopted to replace traditional vibration crushing, unit energy consumption is reduced by 40-60%, through linkage design of a transmission mechanism, a single motor drives a multi-stage crushing unit, through secondary grinding treatment of a fine grinding mechanism, the particle size uniformity of reclaimed sand is improved, the noise level of a closed box body is reduced compared with traditional equipment, and the production efficiency is improved. And the modular design enables the decomposing, crushing and accurate grinding mechanisms to be independently detached and replaced, and the maintenance downtime is shortened.

Description

Technical Field

[0001] This application relates to the field of crushing equipment technology, for example to a crushing device for the regeneration of coated sand. Background Technology

[0002] The descriptions in this section are provided only as background information relating to this disclosure and do not constitute prior art.

[0003] Coated sand, a key material in the foundry industry, is widely used due to its excellent formability, collapsibility, and high reusability. During the casting process, sand molds are poured and cooled to form castings, while the remaining sand molds need to be processed for recycling. One traditional method is to use a vibratory crusher to process small pieces of sand molds into powder for reuse in casting production.

[0004] However, existing vibratory crushers have significant limitations when processing coated sand. Vibratory crushers have low production efficiency and limited processing capacity, making it difficult to meet the demands of large-scale, high-efficiency production. Furthermore, the crushing process often involves substantial energy consumption and noise pollution. Summary of the Invention

[0005] This application provides a crushing device for coated sand recycling, which integrates a three-stage linkage of a decomposition mechanism, a crushing mechanism, and a fine grinding mechanism. This increases the sand crushing efficiency by 3-5 times compared to traditional single-stage crushing, with a processing capacity of 8-12 tons / hour. It uses mechanical compression crushing instead of traditional vibratory crushing, reducing unit energy consumption by 40-60%. Furthermore, the linkage design of the transmission mechanism enables a single motor to drive multiple crushing units. The secondary grinding process of the fine grinding mechanism improves the uniformity of the recycled sand particle size. The noise level of the enclosed box is lower than that of traditional equipment. The modular design allows the decomposition, crushing, and fine grinding mechanisms to be independently disassembled and replaced, reducing maintenance downtime.

[0006] A crushing device for regenerating coated sand includes: a housing, a decomposition mechanism, a crushing mechanism, a fine grinding mechanism, a guide plate, and an electric motor;

[0007] The box body has a feed inlet at the top and a discharge outlet at the bottom;

[0008] The decomposition mechanism, located on the box body and below the feed inlet, can accommodate the sand mold and decompose it into fragments and small pieces;

[0009] The crushing mechanism is located on the box and below the decomposition mechanism. It can hold the fragments and small pieces decomposed by the decomposition mechanism and crush them into granules.

[0010] The fine grinding mechanism is located on the box and below the crushing mechanism. It can hold the particles crushed by the crushing mechanism and grind them into sand and gravel.

[0011] The feed guide plate is set on the box body and below the crushing mechanism, and is connected to the discharge port to discharge the processed recycled sand from the discharge port into the box body.

[0012] The electric motor is installed in the enclosure or on the ground and drives the decomposition mechanism, crushing mechanism, and fine grinding mechanism through transmission components.

[0013] In some embodiments, the disassembly mechanism includes: a first spindle, a disassembly blade, and a plurality of fixed blades;

[0014] The first main shaft is located below the feed inlet, rotatably mounted on the housing, and is connected to the electric motor drive.

[0015] The blades are evenly spaced on the first spindle.

[0016] Multiple fixed blades are evenly spaced on the inner wall of the chamber, interspersed with the decomposition blades.

[0017] In some embodiments, the crushing mechanism includes: a crushing tank, a plurality of filter holes, a second main shaft, a plurality of discs, a plurality of T-shaped parts, and a hammer body;

[0018] The shredding tank is located inside the chamber and collects the fragments and small pieces broken down by the decomposition mechanism.

[0019] Multiple filter holes are located at the bottom of the pulverizing tank.

[0020] The second main shaft is mounted on the housing and located in the middle of the crushing tank, and is connected to the first main shaft via a drive system.

[0021] Multiple disks are evenly spaced on the second main shaft;

[0022] Multiple T-shaped pieces are evenly arranged in the interval area between adjacent disks, and their upper ends are rotatably connected to the image opposite of the adjacent disks.

[0023] The hammer body is connected to the lower end of the T-shaped piece. When the central axis of the T-shaped piece is perpendicular to the axis of the second main shaft, the hammer body is set close to the inner wall of the crushing tank.

[0024] In some embodiments, the fine grinding mechanism includes: a guide trough, a discharge port, a fixed grinding disc, a rotating grinding disc, a vertical shaft, a support frame, a first bevel gear, a transverse rotating shaft, and a second bevel gear;

[0025] The feed chute, located inside the box, receives the particles crushed by the crushing mechanism.

[0026] The discharge port is located at the bottom of the guide chute;

[0027] A fixed grinding disc is set at the bottom of the feed chute, with a through hole in the middle, and the feed inlet of the through hole is connected.

[0028] The rotating grinding disc is used in conjunction with the stationary grinding disc.

[0029] The vertical axis is connected to the bottom of the rotating grinding disc;

[0030] The support frame is fixed inside the box and rotates in conjunction with the vertical shaft;

[0031] The first bevel gear is located below the support frame and is connected to the lower end of the vertical shaft;

[0032] A horizontal rotating shaft passes through the housing and rotates with the housing; one end is connected to the second main shaft drive.

[0033] The second bevel gear is connected to the other end of the transverse main shaft and meshes with the first bevel gear.

[0034] In some embodiments, the guide plate is an arc-shaped plate, which is inclinedly arranged in the box body and its lower end is connected to the discharge port.

[0035] In some embodiments, the motor is connected to the housing via a motor frame.

[0036] The crushing device for coated sand recycling provided in this application can achieve the following technical effects:

[0037] The three-stage linkage of the decomposition, crushing, and fine grinding mechanisms increases the sand crushing efficiency by 3-5 times compared to traditional single-stage crushing, with a processing capacity of 8-12 tons / hour. Mechanical extrusion crushing replaces traditional vibratory crushing, reducing unit energy consumption by 40-60%. The linkage design of the transmission mechanism enables a single motor to drive multiple crushing units. The secondary grinding process of the fine grinding mechanism improves the uniformity of the regenerated sand particle size. The noise level of the enclosed box is lower than that of traditional equipment. The modular design allows the decomposition, crushing, and fine grinding mechanisms to be disassembled and replaced independently, reducing maintenance downtime.

[0038] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0039] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0040] Figure 1 This is a three-dimensional structural diagram of a crushing device for coated sand recycling provided in an embodiment of this disclosure;

[0041] Figure 2 This is a three-dimensional structural schematic diagram of another crushing device for coated sand recycling provided in this embodiment of the present disclosure;

[0042] Figure 3This is a three-dimensional structural schematic diagram of another crushing device for coated sand recycling provided in this embodiment of the present disclosure;

[0043] Figure 4 This is a schematic diagram of the internal structure of the crushing device for coated sand recycling provided in the embodiments of this disclosure;

[0044] Figure 5 This is a schematic diagram of the internal structure of another crushing device for coated sand recycling provided in this embodiment of the present disclosure;

[0045] Figure label:

[0046] 11. Housing; 111. Feed inlet; 112. Discharge outlet; 12. Motor; 13. Decomposition mechanism; 131. Decomposition blade; 132. Fixed blade; 133. First main shaft; 14. Crushing mechanism; 141. Second main shaft; 142. Hammer; 143. T-shaped piece; 144. Disc; 145. Crushing trough; 146. Filter hole; 15. Fine grinding mechanism; 151. Guide trough; 152. Fixed grinding disc; 153. Rotating grinding disc; 154. Annular slide rail; 155. Support frame; 156. First bevel gear; 157. Second bevel gear; 158. Through hole; 159. Transverse rotating shaft; 16. Guide bottom plate. Detailed Implementation

[0047] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0048] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0049] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0050] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0051] Unless otherwise stated, the term "multiple" means two or more.

[0052] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0053] Combination Figure 1-5 As shown, this embodiment of the present disclosure provides a crushing device for the recycling of coated sand, including: a box body 11, a decomposition mechanism 13, a crushing mechanism 14, a fine grinding mechanism 15, a material guide bottom plate 16, and a motor 12;

[0054] The box body 11 has a feed inlet 111 at the top and a discharge outlet 112 at the bottom. The box body 11 is composed of multiple sections assembled and connected. Each section of the box body 11 is respectively connected to the decomposition mechanism 13, the crushing mechanism 14, the fine grinding mechanism 15, and the guide plate 16. The feed inlet 111 is located on the highest section of the box body 11, and the discharge outlet 112 is located on the lowest section of the box body 11.

[0055] The decomposition mechanism 13 is installed on the box 11 and below the feed inlet 111. It can accommodate the sand mold and decompose it into fragments and small pieces.

[0056] The crushing mechanism 14 is installed on the box 11 and below the decomposition mechanism 13. It can accommodate the fragments and small pieces decomposed by the decomposition mechanism 13 and crush them into granules.

[0057] The fine grinding mechanism 15 is set on the box 11 and below the crushing mechanism 14. It can hold the particles crushed by the crushing mechanism 14 and finely grind them into sand and gravel.

[0058] The bottom guide plate 16 is set on the box body 11 and below the crushing mechanism 14, and is connected to the discharge port 112 to discharge the processed recycled sand from the discharge port 112 out of the box body 11.

[0059] The electric motor 12 is installed in the housing 11 or on the ground, and drives the decomposition mechanism 13, the crushing mechanism 14, and the fine grinding mechanism 15 to work through the transmission components.

[0060] The crushing device for coated sand recycling provided in this embodiment features a three-stage linkage of decomposition mechanism 13, crushing mechanism 14, and fine grinding mechanism 15, which increases the sand crushing efficiency by 3-5 times compared to traditional single-stage crushing, with a processing capacity of 8-12 tons / hour. It replaces traditional vibration crushing with mechanical extrusion crushing, reducing unit energy consumption by 40-60%. Furthermore, the linkage design of the transmission mechanism enables a single motor to drive multiple crushing units. After secondary grinding by the fine grinding mechanism 15, the uniformity of the recycled sand particle size is improved. The noise level of the enclosed housing 11 is lower than that of traditional equipment. The modular design allows the decomposition, crushing, and fine grinding mechanisms 15 to be independently disassembled and replaced, reducing maintenance downtime.

[0061] In some embodiments, the disassembly mechanism 13 includes: a first main shaft 133, a disassembly blade 131, and a plurality of fixed blades 132; a bearing seat is provided on the housing 11, and the bearing seat is rotatably connected to both ends of the first main shaft 133.

[0062] The first main shaft 133 is located below the feed inlet 111, rotatably mounted on the housing 11, and connected to the motor 12 via belt drive.

[0063] The decomposition blades 131 are evenly spaced on the first spindle 133; the first spindle 133 is provided with a retaining ring for fixing the decomposition blades 131.

[0064] Multiple fixed blades 132 are evenly spaced on the inner wall of the housing 11, arranged along the axis of the first main shaft 133, and interspersed with the decomposition blades 131.

[0065] In some embodiments, the crushing mechanism 14 includes: a crushing tank 145, a plurality of filter holes 146, a second main shaft 141, a plurality of discs 144, a plurality of T-shaped pieces 143, and a hammer body 142.

[0066] The crushing tank 145 is set inside the housing 11 to receive the fragments and small pieces decomposed by the decomposition mechanism 13; the upper part is a tank that gradually converges downwards, and the lower part is a cylindrical tank. The first main shaft 133 is coaxially set with the lower part of the crushing tank 145.

[0067] Multiple filter holes 146 are located at the bottom of the pulverizing tank 145.

[0068] The second main shaft 141 is mounted on the housing 11 and located in the middle of the crushing tank 145, and is connected to the first main shaft 133 in a transmission manner; the housing 11 is provided with a bearing seat, which is rotatably connected to both ends of the second main shaft 141.

[0069] Multiple disks 144 are evenly spaced on the second main shaft 141;

[0070] Multiple T-shaped pieces 143 are evenly arranged in the interval area between adjacent disks 144, and their upper ends are rotatably connected to the opposite side of the adjacent disks 144.

[0071] The hammer body 142 is connected to the lower end of the T-shaped member 143. When the central axis of the T-shaped member 143 is perpendicular to the axis of the second main shaft 141, the hammer body 142 is positioned close to the inner wall of the crushing tank 145. The hammer body 142 is approximately spherical.

[0072] In some embodiments, the fine grinding mechanism 15 includes: a guide groove 151, a discharge port, a fixed grinding disc 152, a rotating grinding disc 153, a vertical shaft, a support frame 155, a first bevel gear 156, a transverse rotating shaft 159, and a second bevel gear 157.

[0073] The feed trough 151 is set inside the housing 11 to receive the particles crushed by the crushing mechanism 14; the feed trough 151 is an inverted frustum-shaped trough.

[0074] The discharge port is located at the bottom of the guide chute 151;

[0075] A fixed grinding disc 152 is set at the bottom of the guide groove 151, and a through hole 158 is provided in the middle, with the material outlet connected to the through hole 158;

[0076] The rotating grinding disc 153 is used in conjunction with the fixed grinding disc 152. The particles are collected by the guide groove 151 and fall from the discharge port into the through hole 158 to the upper middle position of the rotating grinding disc 153. The rotating grinding disc 153 and the fixed grinding disc 152 are arranged opposite each other, with grinding grooves on the opposite surfaces and gaps between them. The gaps gradually decrease from the center to the outside. When rotating, the particles leave the rotating grinding disc 153 after continuous friction through the gaps due to centrifugal force.

[0077] The vertical axis is connected to the bottom of the rotating grinding disc 153;

[0078] The support frame 155 is fixed inside the housing 11 and rotates with the vertical shaft; the rotating grinding disc 153 is slidably connected to the support frame 155 through the annular slide rail 154.

[0079] The first bevel gear 156 is located below the support frame 155 and is connected to the lower end of the vertical shaft;

[0080] A transverse rotating shaft 159 passes through the housing 11 and rotates with the housing 11, with one end connected to the second main shaft 141 via belt drive.

[0081] The second bevel gear 157 is connected to the other end of the transverse main shaft and meshes with the first bevel gear 156.

[0082] In some embodiments, the guide plate 16 is an arc plate, which is inclinedly disposed in the box 11 and its lower end is connected to the discharge port 112.

[0083] In some embodiments, the motor 12 is connected to the housing 11 via a motor frame.

[0084] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A crushing device for regenerating coated sand, characterized in that, The utility model relates to a sand recycling machine, which comprises: a box body provided with a feeding port at the upper portion and a discharging port at the lower portion; a disintegrating mechanism arranged on the box body and below the feeding port, capable of accommodating sand molds and disintegrating them into fragments and small pieces; a crushing mechanism arranged on the box body and below the disintegrating mechanism, capable of accommodating the fragments and small pieces disintegrated by the disintegrating mechanism and crushing them into granules; a refining mechanism arranged on the box body and below the crushing mechanism, capable of accommodating the granules crushed by the crushing mechanism and refining them into sand; a guide bottom plate arranged on the box body and below the crushing mechanism, connected with the discharging port, and capable of discharging the processed recycled sand from the box body through the discharging port; an electric motor arranged on the box body or the ground, capable of driving the disintegrating mechanism, the crushing mechanism and the refining mechanism to work through transmission members.

2. The crushing device for coated sand regeneration according to claim 1, characterized by The disintegrating mechanism comprises: a first main shaft arranged below the feeding port and rotatably arranged on the box body, in transmission connection with the electric motor; disintegrating blades uniformly and intervally arranged on the first main shaft; a plurality of fixed blades uniformly and intervally arranged on the inner wall of the box body, staggered with the disintegrating blades.

3. The crushing device for coated sand regeneration according to claim 2, characterized by The crushing mechanism comprises: a crushing groove arranged in the box body and capable of receiving the fragments and small pieces disintegrated by the disintegrating mechanism; a plurality of filter holes arranged at the lower portion of the crushing groove; a second main shaft arranged on the box body and in the middle portion of the crushing groove, in transmission connection with the first main shaft; a plurality of discs uniformly and intervally arranged on the second main shaft; a plurality of T-shaped members uniformly arranged in the interval regions between adjacent discs, in rotational connection with the opposite faces of adjacent discs at the upper ends; a hammer body connected with the lower ends of the T-shaped members, arranged close to the inner wall of the crushing groove when the central axes of the T-shaped members are perpendicular to the axial direction of the second main shaft.

4. The crushing device for coated sand regeneration according to claim 3, characterized by The refining mechanism comprises: a guide groove arranged in the box body and capable of receiving the granules crushed by the crushing mechanism; a discharging port arranged at the bottom of the guide groove; a fixed grinding disc arranged at the bottom of the guide groove, provided with a through hole in the middle portion, in communication with the discharging port; a rotating grinding disc used in cooperation with the fixed grinding disc; a vertical shaft connected with the bottom of the rotating grinding disc; a support frame fixed in the box body and in rotational cooperation with the vertical shaft; a first bevel gear arranged below the support frame and connected with the lower end of the vertical shaft; a horizontal rotating shaft penetrating through the box body and in rotational cooperation with the box body, one end of which is in transmission connection with the second main shaft; a second bevel gear connected with the other end of the horizontal main shaft and in meshing engagement with the first bevel gear.

5. The crushing device for coated sand regeneration according to claim 1, characterized by The guide bottom plate is an arc-shaped plate, which is arranged in the box body in an inclined manner and connected with the discharging port at the lower end.

6. The crushing device for coated sand regeneration according to claim 1, characterized by The electric motor is connected with the box body through a motor bracket.

Images