Novel sand making machine

Abstract

The invention discloses a novel sand making machine, and relates to the technical field of material processing equipment, a machine body is provided with a feed port and a discharge port which are communicated with a first cavity, a turntable is rotatably arranged in the first cavity, one end of the turntable facing the feed port is provided with a first feed port which is respectively communicated with the feed port and a second cavity, the turntable is provided with a plurality of discharge ports, and the discharge ports are communicated with the first cavity. The guide plate is located on the side, close to the machine body, of the rotary disc, a first containing area is defined by the guide plate, the first bearing plate and the side wall of the machine body, and a second containing area is formed between the end, away from the base body, of the first bearing plate and the side, away from the base body, of the guide plate. The first material lining layer formed in the first accommodating area separates the flow guide plate from materials subsequently thrown to the flow guide plate, so that the abrasion of the flow guide plate is reduced, and the failure rate of the sand making machine is reduced; and a second material lining layer formed in the second accommodating mixing area absorbs energy transferred to the inner wall of the machine body from the first material lining layer and the flow guide plate through deformation of the internal material, so that the failure rate of the sand making machine is further reduced.

Description

Technical Field

[0001] This invention relates to the field of material processing equipment technology, and in particular to a novel sand making machine. Background Technology

[0002] A crusher is a machine that crushes large solid raw materials to the required size. In the existing technology, crushers such as sand making machines often use the "stone-on-iron" mode, that is, the material is crushed by direct impact with metal parts such as liners and hammers. However, under the violent impact of the material, the liners, hammers and the inner wall of the machine will experience significant wear, deformation and cracking, which increases the failure rate of the sand making machine.

[0003] For example, the vertical impact crusher disclosed in patent document CN114682361A includes a machine body with a crushing chamber inside. The inner wall of the crushing chamber is provided with a crushing plate along the circumference. Multiple crushing teeth are provided on the side of the crushing plate facing the crushing chamber. The crushing teeth improve the crushing effect. However, after running for a period of time, the crushing plate, the inner wall of the machine body and other areas are still prone to deformation and cracking due to the continuous and violent impact of the material. This makes the vertical impact crusher have a high failure rate.

[0004] The vertical impact crusher with a stone-on-iron structure disclosed in patent document CN110653048A includes an impact cylinder. Trapezoidal liners and a top liner are vertically arranged along the circumference of the impact cylinder. Under the action of airflow inside the impact cylinder, the material rotates at high speed along the circumference, which increases the impact force of the material. This undoubtedly increases the impact of the material on the trapezoidal liner and the top liner, and exacerbates the probability of the vertical impact crusher cracking, deforming and other failures under the impact of the material.

[0005] Therefore, how to reduce the failure rate of sand making machines has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a new type of sand making machine to reduce the failure rate of sand making machines.

[0007] To achieve the above objectives, the present invention provides the following solution: This invention provides a novel sand making machine, the novel sand making machine comprising: The machine body has a first cavity, and the machine body is provided with an inlet and an outlet communicating with the first cavity; A turntable is rotatably disposed within the first cavity. The turntable is connected to a first driving device, which drives the turntable to rotate. The turntable has a second cavity. A first inlet is provided on one end of the turntable facing the inlet, which is connected to the inlet and the second cavity respectively. The turntable has a plurality of outlets that are connected to the first cavity and the second cavity respectively. A guide plate is located within the first cavity, spaced apart from the turntable and positioned on the side of the turntable closer to the machine body. A first support plate is provided below the guide plate within the first cavity. The guide plate is fixedly connected to the side wall of the machine body and / or the first support plate. The guide plate, the first support plate, and the side wall of the machine body form a first receiving area communicating with the discharge port. A second receiving area communicating with the discharge port is formed between the end of the first support plate away from the machine body and the side of the guide plate away from the machine body. The first receiving area and the second receiving area are used to receive and store materials.

[0008] Preferably, the guide plate is annular, and the turntable and the guide plate are arranged sequentially from the inside to the outside in the first cavity; or, the first cavity is provided with a plurality of guide plates arranged circumferentially along the body.

[0009] Preferably, the guide plate is annular and includes a first guide section and a second guide section arranged from top to bottom and connected together. The longitudinal section of the first guide section is arc-shaped and protrudes towards the side closer to the machine body. The second guide section is inclined to the side wall of the machine body and is arranged towards the discharge port, and the discharge port is arranged towards the second guide section.

[0010] Preferably, the first cavity is provided with a second support plate located above the guide plate, and the first support plate, the side wall of the body, the guide plate and the second support plate surround to form the first accommodating area, and the guide plate is fixedly connected to at least one of the first support plate, the second support plate and the side wall of the body.

[0011] Preferably, the first receiving area is connected to the discharge port through a first inlet; wherein, the first inlet is disposed on the guide plate, and / or, the guide plate is provided with the first inlet between at most two of the first support plate, the second support plate and the side wall of the machine body.

[0012] Preferably, the novel sand making machine further includes a limiting plate fixed in the first cavity. The limiting plate is located at the end of the first bearing plate away from the machine body. The top of the limiting plate is higher than the first bearing plate and lower than the top of the guide plate. The first bearing plate, the guide plate and the limiting plate surround to form the second accommodating area.

[0013] Preferably, the machine body is provided with a maintenance passage that communicates with the first cavity and is used for operators to enter and exit; And / or, the side of the turntable is provided with a plurality of first discharge ports arranged along the circumference of the turntable; And / or, the feed inlet and the discharge outlet are spaced apart from top to bottom; And / or, the novel sand making machine includes a main shaft, the first end of the main shaft extending into the first cavity, the turntable and the sleeve being spaced apart on the first end of the main shaft from the feed port toward the discharge port, the turntable being fixedly connected to the main shaft, the sleeve being rotatably connected to the main shaft, the top and bottom of the sleeve being provided with cover plates, and the sleeve and / or the cover plates being provided with a first channel communicating with the main shaft and used for injecting lubricating medium; Wherein, the first channel is connected to the lubrication oil station, or, the inlet of the first channel is detachably connected to a plug; and / or, the main shaft is fixed with helical blades located inside the sleeve and spaced apart from the sleeve.

[0014] Preferably, the sleeve has a first channel opened along the axial direction of the main shaft, and the first channel has a helical blade fixed on the main shaft and arranged along the axial direction of the main shaft, the helical blade being spaced apart from the sleeve.

[0015] Preferably, the feed inlet is located directly above the first feed port, and there is a gap between the feed inlet and the first feed port; Alternatively, a material blocking curtain and a feeding hopper are sequentially arranged between the feed inlet and the first feed outlet in the direction from the feed inlet toward the first feed outlet. The feeding hopper is connected to the first feed outlet. The first end of the material blocking curtain is connected to the area of ​​the machine body corresponding to the feed outlet. The second end of the material blocking curtain abuts against the inner or outer side of the feeding hopper. The second end of the material blocking curtain is subjected to a first force, which is directed from the material blocking curtain toward the feeding hopper. When a set amount of material overflows from the feeding hopper, the overflowing material exerts a second force on the second end of the material blocking curtain away from the feeding hopper. The second force is greater than the first force and is in the opposite direction to the first force.

[0016] Preferably, the material blocking curtain is made of a flexible material, the second end of the material blocking curtain and the hopper are interference fit, and the first force is the flexible restoring force of the material blocking curtain; And / or, the first inlet is provided with an adjustment component for adjusting the opening size of the first inlet; wherein, the adjustment component includes a blocking member provided at the first inlet, the blocking member is tractively connected to a second driving device, the second driving device being used to drive the blocking member to move toward and away from the first inlet; or, the adjustment component includes a valve provided at the first inlet.

[0017] The present invention achieves the following technical effects compared to the prior art: The novel sand making machine of this invention includes a machine body, a turntable, and a guide plate. The machine body has a first cavity, and the machine body is provided with an inlet and an outlet communicating with the first cavity. The turntable is rotatably disposed in the first cavity and is driven by a first driving device. The first driving device is used to drive the turntable to rotate. The turntable has a second cavity. The end of the turntable facing the inlet is provided with a first feed inlet communicating with the inlet and the second cavity respectively. The turntable is provided with a plurality of discharge outlets communicating with the first cavity and the second cavity respectively. The guide plate is located in the first cavity, spaced apart from the turntable, and located on the side of the turntable closer to the machine body. The first bearing plate is provided in the first cavity below the guide plate. The guide plate is fixedly connected to the side wall of the machine body and / or the first bearing plate. The guide plate, the first bearing plate, and the side wall of the machine body surround to form a first receiving area communicating with the discharge outlet. A second receiving area communicating with the discharge outlet is formed between the end of the first bearing plate away from the base and the side of the guide plate away from the base. The first receiving area and the second receiving area are used to receive and store materials. When material is added to the first chamber through the inlet, the material enters the first feed port and reaches the second chamber. Simultaneously, the first drive device rotates the turntable, which throws the material in the second chamber out of the discharge port and into the first and second receiving areas. The material entering the first receiving area accumulates and forms a first material liner, and the material entering the second receiving mixing area accumulates and forms a second material liner. The first material liner separates the material on the guide plate and the subsequent thrown guide plate, causing the material on the subsequent thrown guide plate to collide with the material in the material liner. Compared to the direct impact of materials on the guide plate, the impact and crushing method reduces the wear and deformation of the guide plate, thus lowering the failure rate of the new sand making machine. The second material liner acts as a "buffer" between the guide plate and the inner wall of the machine. The second material liner can absorb the energy transmitted from the first material liner and the guide plate to the inner wall of the machine through the compression deformation of the internal material. This reduces the force transmitted from the material impacting the first material liner to the inner wall of the machine through the guide plate and the second material liner, thereby reducing the deformation and cracking of the inner wall of the machine caused by the material impacting the first material liner, and further reducing the failure rate of the sand making machine. In summary, compared with existing technologies such as patent documents CN114682361A and CN110653048A, the new sand making machine of this invention can effectively reduce the failure rate and maintenance cost of the sand making machine. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a longitudinal section view of a new type of sand making machine; Figure 2 This is a top view of the turntable; The components include: 1. Machine body; 2. Feed inlet; 3. Discharge outlet; 4. Turntable; 5. First feed inlet; 6. Discharge outlet; 7. Guide plate; 8. Main material flow; 9. Dividing material flow; 10. Vortex impact material flow; 11. Vortex falling material flow; 12. Feed hopper; 13. Material blocking curtain; 14. Inspection door; 15. First material liner; 16. Second material liner; 17. Limiting plate; 18. First bearing plate; 19. Second bearing plate. 20. Plate; 21. Main shaft; 22. Sleeve; 23. Cover plate; 24. Spiral blade; 25. Bearing; 26. Pulley; 27. Sealing component; 28. Second drive device; 29. ​​First disc body; 30. Second disc body; 31. Feed hopper; 32. Feed hood; 33. Inlet; 34. Return port; 35. Reinforcing rib; 36. Second cavity body; 37. First wear-resistant plate; 38. Second wear-resistant plate; 39. Third wear-resistant plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1 , Figure 2As shown, this invention discloses a novel sand making machine, which includes a machine body 1, a turntable 4, and a guide plate 7. The machine body 1 has a first cavity, and the machine body 1 is provided with an inlet 2 and an outlet 3 communicating with the first cavity. The turntable 4 is rotatably disposed in the first cavity, and the turntable 4 is driven by a first driving device for driving the turntable 4 to rotate. The turntable 4 has a second cavity 35, and the end of the turntable 4 facing the inlet 2 is provided with a first feed inlet 5 communicating with both the feed inlet 2 and the second cavity 35. The turntable 4 is provided with a plurality of discharge ports communicating with both the first cavity and the second cavity 35. The feed inlet 6 and the guide plate 7 are located in the first cavity, spaced apart from the turntable 4 and on the side of the turntable 4 closer to the machine body 1. The first cavity is provided with a first support plate 18 located below the guide plate 7. The guide plate 7 and the side wall of the machine body 1 and / or the first support plate 18 are fixedly connected. The guide plate 7, the first support plate 18 and the side wall of the machine body 1 surround to form a first receiving area communicating with the discharge port 6. A second receiving area communicating with the discharge port 6 is formed between the end of the first support plate 18 away from the base and the side of the guide plate 7 away from the base. The first receiving area and the second receiving area are used to receive and store materials. When material is added to the first cavity through the feed inlet 2, the material enters the first feed port 5 through the feed inlet 2 and reaches the second cavity 35. At the same time, the first driving device drives the turntable 4 to rotate, and the turntable 4 throws the material in the second cavity 35 out of the discharge port 6 and into the first and second receiving areas. The material entering the first receiving area accumulates in the first receiving area and forms the first material liner 15, and the material entering the second receiving mixing area accumulates in the second receiving area and forms the second material liner 16. The first material liner 15 separates the material on the guide plate 7 and the material on the subsequent thrown guide plate 7, so that the material on the subsequent thrown guide plate 7 collides with the material in the material liner. Compared to the method of material directly impacting the guide plate 7, this method reduces the wear and deformation of the guide plate 7, thus lowering the failure rate of the sand making machine. The second material liner 16 acts as a "buffer" between the guide plate 7 and the inner wall of the machine body 1. The second material liner 16 can absorb the energy transmitted from the first material liner 15 and the guide plate 7 to the inner wall of the machine body 1 through the compression deformation of the internal material. This reduces the force transmitted from the material impacting the first material liner 15 to the inner wall of the machine body 1 through the guide plate 7 and the second material liner 16, thereby reducing the impact of material on the first material liner 15 and the resulting deformation and cracking of the inner wall of the machine body 1, further reducing the failure rate of the sand making machine. In summary, compared with existing technologies such as patent documents CN114682361A and CN110653048A, the new sand making machine of this invention can effectively reduce the failure rate and maintenance cost of the sand making machine.

[0023] Depending on the operating conditions, the novel sand making machine of this invention can be used for crushing or grinding materials such as stone, grain, coal, and pharmaceuticals; the novel sand making machine can be a vertical or horizontal sand making machine, such as... Figure 1 As shown, when the new sand making machine is a vertical sand making machine, the feed inlet 2 and the discharge outlet 3 are arranged alternately from top to bottom; or, when the new sand making machine is a horizontal sand making machine, the feed inlet 2 and the discharge outlet 3 can be arranged alternately in the horizontal direction.

[0024] Turntable 4 can be a single unit, or it can be a modular unit, such as... Figure 1 As shown, the turntable 4 includes a first disc body 28 and a second disc body 29 arranged from top to bottom. The first disc body 28 and the second disc body 29 are detachably and fixedly connected by fasteners such as bolts. A second cavity 35 is formed between the first disc body 28 and the second disc body 29. Figure 1 As shown, a feed hood 31 is also provided above the turntable 4, and a second feed inlet communicating with the first feed inlet 5 is provided above the feed hood 31. Figure 2 As shown, the outer side of the turntable 4 is provided with reinforcing ribs 34 to improve the strength of the turntable 4, or other reinforcing structures made of alloy steel or other materials with a certain strength. The inner side of the turntable 4 is provided with a first wear-resistant plate 36 to reduce the wear of the turntable 4, and a second wear-resistant plate 37 is provided at the discharge port 6. The outer side of the turntable 4 is also provided with a third wear-resistant plate 38 spaced apart from the reinforcing ribs 34. The first wear-resistant plate 36, the second wear-resistant plate 37, and the third wear-resistant plate 38 reduce the wear of materials on the turntable 4, reduce the failure rate of the turntable 4, and improve the service life of the turntable 4. The first wear-resistant plate 36, the second wear-resistant plate 37, and the third wear-resistant plate 38 can be made of alloy steel or other materials with sufficient strength.

[0025] The first inlet 5 can be located at the center or edge of the turntable 4, ensuring that the material coming out of the inlet 2 can enter the first inlet 5. The inlet 2 can be located directly above the first inlet 5, with a gap between the inlet 2 and the first inlet 5. After the material is fed in through the inlet 2, it falls a certain distance and then enters the second cavity 35 through the first inlet 5. Alternatively, the inlet 2 and the first inlet 5 can be connected by a pipe, with both ends of the pipe connected to the inlet 2 and the first inlet 5, respectively.

[0026] Or, such as Figure 1As shown, a material blocking curtain 13 and a feeding hopper 12 are sequentially arranged between the feed inlet 2 and the first feed inlet 5, moving from the feed inlet 2 towards the first feed inlet 5. The feeding hopper 12 is located at and connected to the first feed inlet 5. The first end of the material blocking curtain 13 is connected to the area corresponding to the machine body 1 and the feed inlet 2. The second end of the material blocking curtain 13 abuts against the inner or outer side of the feeding hopper 12. The second end of the material blocking curtain 13 is subjected to a first force, which is directed from the material blocking curtain 13 towards the feeding hopper 12. When less than a set amount of material overflows from the feeding hopper 12, the first force keeps the second end of the material blocking curtain 13 abutting against the feeding hopper 12. This prevents the feed inlet 2 from directly connecting to the second cavity 35. The material entering from the feed inlet 2 can only pass sequentially through the material blocking curtain 13 and the first feed inlet 5, and is thrown out from the discharge port 6 of the turntable 4. When a set amount of material overflows from the turntable 4, the overflow... The material exiting the feed hopper 12 exerts a second force on the blocking curtain 13, moving away from the feed hopper 12. This second force is greater than the first force and is in the opposite direction to the first force, causing the second end of the blocking curtain 13 to move away from the feed hopper 12. A gap is created between the blocking curtain 13 and the feed hopper 12. At this time, a portion of the material entering from the inlet 2 enters the second cavity 35 and is thrown out from the discharge port 6. Another portion of the material falls into the second cavity 35 from the gap between the blocking curtain 13 and the feed hopper 12. For easy distinction, the material flow thrown out from the discharge port 6 is called the "main material flow 8", and the material flow moving from the gap between the blocking curtain 13 and the feed hopper 12 towards the discharge port 3 is called the "dividing material flow 9". During the process of the dividing material flow 9 moving towards the discharge port 3, the dividing material flow 9 is impacted by the main material flow 8 several times, achieving "stone-on-stone" crushing and improving the material crushing effect.

[0027] Alternatively, a feed hopper 30 can be installed at the feed inlet 2, and the first end of the material blocking curtain 13 can be connected to the end of the feed hopper 30 that extends into the first cavity, for example, by bonding or by fixing with bolts.

[0028] The first force can be generated in different ways. For example, when the material blocking curtain 13 is made of a flexible material such as rubber, the second end of the material blocking curtain 13 and the hopper are in an interference fit, and the first force is the flexible restoring force generated by the material blocking curtain 13 itself towards the hopper; or, a restoring spring is provided between the second end of the material blocking curtain 13 and the hopper, and the restoring spring applies the first force to the material blocking curtain 13.

[0029] Furthermore, the new sand making machine also includes an adjustment assembly located at the first inlet 5. This assembly includes a sealing member 26 located at the first inlet 5 and a second drive device 27 connected to the sealing member 26. The second drive device 27 is used to move the sealing member 26 towards and away from the first inlet 5. For example, when the sealing member 26 is a baffle with one end rotatably connected to the first inlet 5 (the baffle is large enough to completely block the first inlet 5 when needed), the second drive device 27 is a linear drive device such as a hydraulic cylinder. The output shaft of the second drive device 27 is inclined to the centerline of the first inlet 5, and the output end of the second drive device 27 is connected to the other end of the baffle. By adjusting the length of the output shaft of the second drive device 27, the rotation angle of the baffle can be driven, thereby adjusting the opening of the first inlet 5. Or, as... Figure 1 As shown, the moving direction of the second drive device 27 is perpendicular to the center line of the first feed inlet 5. At this time, the second drive device 27 is a linear drive device such as a hydraulic cylinder. When the second drive device 27 drives the baffle to move away from the feed hopper 12, for example... Figure 1 When the feed is moved to the right, the opening of the first feed inlet 5 increases. When the second drive device 27 moves the baffle towards the direction closer to the feed hopper 12, for example... Figure 1 When the device moves to the left, the opening of the first inlet 5 decreases; alternatively, the regulating component includes a valve located at the first inlet 5, which adjusts the opening of the first inlet 5. Specifically, the valve can be a ball valve or a gate valve that controls the opening of the first inlet 5. Since the main material flow 8 is thrown out from the turntable 4 and the distribution flow 9 falls naturally, the main material flow 8 has high kinetic energy. When a smaller particle size is required, the regulating component can be used to increase the opening of the first inlet 5, thereby increasing the output of the main material flow 8 and enhancing the impact between the main material flow 8 and the distribution flow 9. When the output particle size meets the requirements, the regulating component can be used to appropriately decrease the opening of the first inlet 5, increasing the output of the distribution flow 9 and thus reducing the energy consumption of the turntable 4.

[0030] If the internal space of the first cavity is sufficient, the second drive device 27 can be installed inside the first cavity; if the internal space of the first cavity is small, when the second drive device 27 is a hydraulic cylinder, the cylinder body of the hydraulic cylinder can be installed outside the first cavity, so that the piston rod of the hydraulic cylinder extends into the first cavity and connects with the sealing component 26, and a sealing component such as a sealing ring is provided between the piston rod and the machine body 1.

[0031] The first driving device can be a rotary motor or hydraulic motor, or other driving structure capable of rotating the turntable 4. The output end of the first driving device can be directly connected to the turntable 4 to drive its rotation, or the output end of the first driving device can be connected to the turntable 4 via a gear set or belt drive structure. Figure 1As shown, a pulley 25 is fitted on the second end of the main shaft 20, which is located on the outside of the first cavity. The pulley 25 is connected to the drive wheel fitted on the output end of the first drive device through a transmission belt. Thus, when the first drive device drives the drive wheel to rotate, the drive wheel drives the pulley 25 and the main shaft 20 to rotate through the transmission belt.

[0032] like Figure 1As shown, the new type of sand making machine includes a main shaft 20. The first end of the main shaft 20 extends into the first cavity. A turntable 4 and a sleeve 21 are spaced apart at the first end of the main shaft 20 from the feed port 2 towards the discharge port 3. The turntable 4 and the main shaft 20 are fixedly connected, and the connection between the turntable 4 and the main shaft 20 can be a key connection or a screw connection, etc. The sleeve 21 is rotatably connected to the main shaft 20. Specifically, a bearing 24 is sleeved between the sleeve 21 and the main shaft 20, and a bearing for installing the bearing 24 is provided inside the sleeve 21. 24. The sleeve 21 is bolted to the cover plate 22 at both ends. Near each end of the sleeve 21, there is a retaining ring with several bolt holes around its circumference. The retaining ring is then fixed to a mounting bracket located outside the sleeve 21 by bolts. The sleeve 21 is a hollow structure. Cover plates 22, fitted over the main shaft 20, are fixed to both the top and bottom of the sleeve 21. The sleeve 21 and / or cover plate 22 have a first channel communicating with the main shaft 20 and used for injecting lubricating medium. The channel is connected to a lubrication oil station via a pipeline (the lubrication oil station supplies lubricating oil and other lubricating and cooling media to the first channel through its own low-pressure pump or other delivery pumps; the lubrication oil station is existing technology, and its specific structure and working process will not be described in detail. Alternatively, the lubrication oil station can also supply other media that can provide lubrication and cooling functions to the first channel); or, a plug can be detachably connected to the inlet 32 ​​of the first channel. In this case, when it is necessary to add lubricating oil or other lubricating and cooling media to the first channel, the operator can first remove the plug and manually add the lubricating and cooling media to the first channel through an oil storage device such as an oil drum. After the addition is completed, the plug is used to seal the inlet 32 ​​of the first channel. The plug is made of elastic materials such as rubber, and the plug and the inlet 32 ​​are interference fit. Alternatively, the plug is made of metal materials such as steel, and the plug and the inlet 32 ​​are threaded. Alternatively, the plug can also be made of other materials and can be detachably connected to the inlet 32 ​​in other ways, but it must be ensured that the plug can seal the inlet 32. Furthermore, the first channel is equipped with a return port 33 connected to it, allowing a circulation loop of lubricating medium to be formed through the inlet 32, return port 33, the first channel, and the lubrication station. Alternatively, when the new sand making machine is stopped, water or other types of cleaning fluid can be added to the first tank to clean the main shaft 20. Moreover, sealing rings or other sealing components are provided between the cover plate 22 and the sleeve 21, and between the cover plate 22 and the main shaft 20. When the inlet 32 ​​of the first channel is equipped with the aforementioned plug, this reduces the possibility of damage to the main shaft 20 due to insufficient lubrication medium supply caused by a lubrication station malfunction.

[0033] Furthermore, such as Figure 1As shown, the sleeve 21 has a first channel opened along the axial direction of the main shaft 20. The first channel is provided with a helical blade 23 fixed on the main shaft 20 and arranged along the axial direction of the main shaft 20. The helical blade 23 and the sleeve 21 are spaced apart. When the first driving device drives the main shaft 20 to rotate, the main shaft 20 drives the helical blade 23 to rotate. The helical blade 23 drives the lubricating medium in the first channel to flow. Compared with the method without the helical blade 23, this improves the fluidity of the lubricating medium in the first channel, enhances the lubrication performance of the main shaft 20, and reduces the wear of the main shaft 20. The distance between the end of the spiral blade 23 furthest from the main shaft 20 and the inner wall of the sleeve 21 is the same in all regions. Through multiple experiments, the distance between the end of the spiral blade 23 furthest from the main shaft 20 and the inner wall of the sleeve 21 is controlled within a certain range, so that the oil pressure in the first channel is stabilized in the low-pressure range of 0.1-0.3MPa (the first range refers to the distance between the end of the spiral blade 23 furthest from the main shaft 20 and the inner wall of the sleeve 21 when the oil pressure in the first channel is stable at 0.1-0.3MPa). This allows the lubricating medium to lubricate the main shaft 20 under low-pressure conditions, reducing the leakage caused by the strong penetrating power of the lubricating oil when high-pressure lubrication is used, which easily passes through the seal between the sleeve 21 and the cover plate 22. It also reduces the squeezing and friction on the seal, delays the speed at which the seal fails due to deformation and wear, and reduces the maintenance cost due to seal wear.

[0034] The discharge port 6 can be located at the end of the first turntable 4 facing the feed port 2, or, as... Figure 1 , Figure 2 As shown, a number of discharge ports 6 (uniformly or unevenly arranged) are arranged on the side of the turntable 4 along the circumference of the first turntable 4. Alternatively, the discharge ports 6 can also be arranged in other positions of the turntable 4, but it is necessary to ensure that the material thrown out by the discharge ports 6 can reach the first and second receiving areas.

[0035] The deflector 7 is specifically made of steel or other metal materials with sufficient strength. The deflector 7 is fixed to the first bearing plate 18 and / or the corresponding area of ​​the side wall of the body 1 by welding or bolting. Only one deflector 7 may be provided, such as... Figure 1 As shown, the guide plate 7 is annular, and the turntable 4 and the guide plate 7 are arranged sequentially from the inside to the outside; or, several guide plates 7 are arranged along the circumference of the body 1 in the first cavity. In this case, the guide plate 7 can be annular, flat, wavy, or arc-shaped, etc. It is necessary to ensure that the guide plate 7 can surround the first bearing plate 18 and the side wall of the body 1 to form the first accommodating area.

[0036] like Figure 1As shown, the guide plate 7 is annular and includes a first guide section and a second guide section arranged from top to bottom. The longitudinal section of the first guide section is arc-shaped and protrudes towards the side closer to the machine body 1. The second guide section is inclined to the side wall of the machine body 1 and is positioned towards the discharge port 3. The arrangement of the first and second guide sections allows the main material flow 8, which is thrown out from the discharge port 6 by the turntable 4, to gradually accumulate after impacting the guide plate 7 and form an inclined surface, namely the second material liner 16, along the guide plate 7. After the subsequent main material flow 8 impacts the second material liner 16, it moves upward along the second guide section and the first guide section in sequence under the action of inertia, forming a vortex. For ease of distinction, this is referred to as vortex impact flow 10. Subsequently, under its own weight, vortex impact flow 10 moves downward to form vortex falling flow 11. In this way, the main flow 8 or the main flow 8 and the branch flow 9 will impact the vortex impact flow 10 and the vortex falling flow 11 multiple times, thereby improving the material impact and crushing effect. Moreover, because the longitudinal section of the first guide section is arc-shaped and the shape transition is relatively gentle, the flow of material on the first guide section and the second material liner 16 is smoother, reducing the problem of the material causing strong impact on the guide plate 7 under inertia due to the abrupt change in the shape of the first guide section, thus reducing the wear of the guide plate 7.

[0037] Furthermore, a second support plate 19 is provided above the guide plate 7 within the first cavity. The first support plate 18, the second support plate 19, the guide plate 7, and the side wall of the body 1 surround and form a first receiving area. The guide plate 7 is fixedly connected to at least one of the first support plate 18, the second support plate 19, and the side wall of the body 1 (the fixed connection is specifically welding or bolting). The second support plate 19 acts as a "cover" for the first receiving area, which makes the first material liner 15 more stable and less likely to overflow from the top of the first receiving area, thus continuously providing a buffering effect and reducing damage to the guide plate 7 and the side wall of the body 1. The first support plate 18 and the second support plate 19 can be arranged parallel or inclined, as long as the first material liner 15 can be formed within the first receiving area.

[0038] Furthermore, the first receiving area is connected to the discharge port 6 through the first inlet 32; wherein, the guide plate 7 is provided with the first inlet 32; and / or, when the first support plate 18, the guide plate 7 and the side wall of the machine body 1 cooperate to form the first receiving area, the first inlet 32 ​​is located between the first support plate 18 or the side wall of the machine body 1 and the guide plate 7, that is, at this time the gap between the guide plate 7 and the first support plate 18 or the side wall of the machine body 1 is the first inlet 32; when the first support plate 18, the second support plate 19, the guide plate 7 and the side wall of the machine body 1 cooperate to form the second receiving area, the guide plate 7 has at most a gap between it and two of the first support plate 18, the second support plate 19 and the side wall of the machine body 1, that is, the first inlet 32, so that while ensuring the presence of the first inlet 32, the guide plate 7 can be fixed in the first cavity. The second receiving area has an opening on the side facing the discharge port 6, which allows the discharge port 6 to directly enter the second receiving area through the opening; the first inlet 32 ​​can be connected to the discharge port 6 through the opening, or directly connected to the discharge port 6.

[0039] Furthermore, the new sand making machine also includes a limiting plate 17 fixed in the first cavity. The limiting plate 17 is located at the end of the first bearing plate 18 away from the machine body 1. The top of the limiting plate 17 is higher than the first bearing plate 18 and lower than the top of the guide plate 7. At this time, the first bearing plate 18, the guide plate 7 and the limiting plate 17 surround to form a second accommodating area. If a second bearing plate 19 is provided, the first bearing plate 18, the second bearing plate 19, the guide plate 7 and the limiting plate 17 surround to form a second accommodating area. Since the top of the limiting plate 17 is higher than the top of the first bearing plate 18, a certain amount of material is not easy to fall out of the second accommodating area, so as to ensure the continuous existence of the second material liner 16 and isolate the guide plate 7 from the subsequent material flow, thereby reducing the wear of the guide plate 7. When the second support plate 19 and the limiting plate 17 are not present, the opening is the gap between the side of the guide plate 7 away from the body 1 and the second accommodating area formed by the first support plate 18 facing the turntable 4; when the second support plate 19 is present but the limiting plate 17 is not present, the opening is between the first support plate 18 and the second support plate 19, and is located in the gap between the guide plate 7 away from the body 1; when the limiting plate 17 is present but the second support plate 19 is not present, the opening is the gap between the second accommodating area formed by the guide plate 7, the limiting plate 17 and the first support plate 18 facing the turntable 4; when the limiting plate 17 and the second support plate 19 are present, the opening is the gap between the limiting plate 17 and the second support plate 19.

[0040] Furthermore, such as Figure 1As shown, the machine body 1 is equipped with a maintenance passage that communicates with the first cavity and serves as an access route for operators (the maintenance passage is large enough for operators to enter and exit smoothly). A maintenance door 14 is located at the maintenance passage. When the new sand making machine does not require shutdown for maintenance, the maintenance door 14 blocks the maintenance passage. When maintenance is needed, the maintenance door 14 is opened to access the maintenance passage. This allows operators to directly enter the first cavity to inspect and maintain the internal structure of the first cavity, such as the turntable 4, eliminating the need for disassembly in traditional sand making machines, thus shortening maintenance time and reducing downtime costs. Furthermore, the turntable 4 is matched to the first cavity; therefore, while the machine body 1 has a large size, the size of the turntable 4 also increases accordingly, thereby increasing the linear velocity of the turntable 4 (tests show that the linear velocity of the turntable 4 can reach over 80 m / s). This increases the kinetic energy provided by the turntable 4 for material crushing, improving the material crushing effect. Specifically: E = 1 / 2 mv 2 (Where m is the material mass and v is the linear velocity of the turntable 4), when the material is granite particles, with a particle size of 4.75mm granite (density ρ=2.6g / cm³),... 3 For example: the volume of a single stone is V = 1 / 3πr 2 h (approximately a cone, r = 2.375 mm, h = 4.75 mm) ≈ 27.6 mm 3 The mass of a single particle is m = ρV ≈ 2.6 g / cm³. 3 ×0.0276cm 3 ≈0.0718g = 7.18 × 10 -5 kg; The kinetic energy that the rotor of a traditional sand making machine can apply to a single stone particle (the linear velocity that the rotor of a traditional sand making machine can achieve is v=60m / s): E1=1 / 2×7.18×10 - 5 kg×(60m / s) 2 ≈1.29J; The kinetic energy that the turntable 4 of the novel sand making machine in this invention can apply to a single stone (taking the linear velocity of the turntable 4 in this invention as an example of 80m / s) (v=80m / s): E2=1 / 2×7.18×10 -5 kg×(80m / s) 2 The kinetic energy of the crushing of 4.75mm granite is approximately 1.8J. Traditional sand making machines have a kinetic energy gap of 28.3%. The kinetic energy of the new sand making machine in this invention exceeds the critical value by 27.8%. In the challenging granite sand making process, production verification shows that the proportion of finished products with particles smaller than 4.75mm can be crushed in one go, accounting for 85%, and the amount of oversized recycled material is reduced by more than 70%, reducing the energy consumption per ton of sand by 30%.

[0041] In this document, "several" refers to at least one. "And / or" refers to text content preceding and / or following it, which can exist simultaneously or individually. For example, A and / or B includes either only A or B, or both A and B. This invention discloses multiple technical solutions, but does not provide any contrary technical teachings. Any content not covered in this invention is applicable to existing technologies.

[0042] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A novel sand making machine, characterized in that, The novel sand making machine includes: The machine body has a first cavity, and the machine body is provided with an inlet and an outlet communicating with the first cavity; A turntable is rotatably disposed within the first cavity. The turntable is connected to a first driving device, which drives the turntable to rotate. The turntable has a second cavity. A first inlet is provided on one end of the turntable facing the inlet, which is connected to the inlet and the second cavity respectively. The turntable has a plurality of outlets that are connected to the first cavity and the second cavity respectively. A guide plate is located within the first cavity, spaced apart from the turntable and positioned on the side of the turntable closer to the machine body. A first support plate is provided below the guide plate within the first cavity. The guide plate is fixedly connected to the side wall of the machine body and / or the first support plate. The guide plate, the first support plate, and the side wall of the machine body form a first receiving area communicating with the discharge port. A second receiving area communicating with the discharge port is formed between the end of the first support plate away from the machine body and the side of the guide plate away from the machine body. The first receiving area and the second receiving area are used to receive and store materials.

2. The novel sand making machine according to claim 1, characterized in that, The guide plate is annular, and the turntable and the guide plate are arranged sequentially from the inside to the outside in the first cavity; or, the first cavity is provided with a plurality of the guide plates arranged circumferentially along the body.

3. The novel sand making machine according to claim 2, characterized in that, The guide plate is annular and includes a first guide section and a second guide section arranged from top to bottom and connected together. The longitudinal section of the first guide section is arc-shaped and protrudes towards the side closer to the machine body. The second guide section is inclined to the side wall of the machine body and is arranged towards the discharge port, and the discharge port is arranged towards the second guide section.

4. The novel sand making machine according to claim 1, characterized in that, The first cavity is provided with a second support plate located above the guide plate. The first support plate, the side wall of the body, the guide plate and the second support plate surround to form the first accommodating area. The guide plate is fixedly connected to at least one of the first support plate, the second support plate and the side wall of the body.

5. The novel sand making machine according to claim 4, characterized in that, The first receiving area is connected to the discharge port through a first inlet; wherein the first inlet is provided on the guide plate, and / or the guide plate is provided between at most two of the first support plate, the second support plate and the side wall of the machine body.

6. The novel sand making machine according to claim 1, characterized in that, The novel sand making machine also includes a limiting plate fixed in the first cavity. The limiting plate is located at the end of the first bearing plate away from the machine body. The top of the limiting plate is higher than the first bearing plate and lower than the top of the guide plate. The first bearing plate, the guide plate and the limiting plate surround to form the second accommodating area.

7. The novel sand making machine according to claim 1, characterized in that, The machine body is provided with a maintenance passage that communicates with the first cavity and is used for operators to enter and exit; And / or, the side of the turntable is provided with a plurality of discharge ports arranged along the circumference of the turntable; And / or, the feed inlet and the discharge outlet are spaced apart from top to bottom; And / or, the novel sand making machine includes a main shaft, the first end of the main shaft extending into the first cavity, the turntable and the sleeve being spaced apart on the first end of the main shaft from the feed port toward the discharge port, the turntable being fixedly connected to the main shaft, the sleeve being rotatably connected to the main shaft, the top and bottom of the sleeve being provided with cover plates, and the sleeve and / or the cover plates being provided with a first channel communicating with the main shaft and used for injecting lubricating medium; Wherein, the first channel is connected to the lubrication oil station, or, the inlet of the first channel is detachably connected to a plug; and / or, the main shaft is fixed with helical blades located inside the sleeve and spaced apart from the sleeve.

8. The novel sand making machine according to claim 7, characterized in that, The sleeve has a first channel opened along the axial direction of the main shaft. The first channel has a helical blade fixed on the main shaft and arranged along the axial direction of the main shaft. The helical blade is spaced apart from the sleeve.

9. The novel sand making machine according to claim 1, characterized in that, The feed inlet is located directly above the first feed port, and there is a gap between the feed inlet and the first feed port; Alternatively, a material blocking curtain and a feeding hopper are sequentially arranged between the feed inlet and the first feed outlet in the direction from the feed inlet toward the first feed outlet. The feeding hopper is connected to the first feed outlet. The first end of the material blocking curtain is connected to the area of ​​the machine body corresponding to the feed outlet. The second end of the material blocking curtain abuts against the inner or outer side of the feeding hopper. The second end of the material blocking curtain is subjected to a first force, which is directed from the material blocking curtain toward the feeding hopper. When a set amount of material overflows from the feeding hopper, the overflowing material exerts a second force on the second end of the material blocking curtain away from the feeding hopper. The second force is greater than the first force and is in the opposite direction to the first force.

10. The novel sand making machine according to claim 9, characterized in that, The material blocking curtain is made of flexible material, and the second end of the material blocking curtain and the hopper are interference fit. The first force is the flexible restoring force of the material blocking curtain. And / or, the first inlet is provided with an adjustment component for adjusting the opening size of the first inlet; wherein, the adjustment component includes a blocking member provided at the first inlet, the blocking member is tractively connected to a second driving device, the second driving device being used to drive the blocking member to move toward and away from the first inlet; or, the adjustment component includes a valve provided at the first inlet.

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