Granite crushing device

Abstract

The granite crushing device comprises a crusher and a material receiving mechanism, the crusher comprises a machine shell and multiple groups of crushing parts arranged in the machine shell, the multiple groups of crushing parts are arranged in the vertical direction, a filtering ring is arranged between every two adjacent crushing parts, granite aggregates processed by the multiple groups of crushing parts have different grain sizes, and the grain sizes of the granite aggregates are different. And the material collecting mechanism comprises a collecting part and a backflow part, the collecting part is used for screening the granite aggregate meeting the requirement and conveying the aggregate with the overlarge particle size to the backflow part, and the part of the aggregate is conveyed back to the crushing part through the backflow part to be reprocessed. The granite aggregate production device facilitates simultaneous production of granite aggregates with different particle sizes, and facilitates improvement of the production efficiency of the granite aggregates.

Description

Technical Field

[0001] The present invention relates to the field of crushing devices, and in particular to a granite crushing device. Background Art

[0002] Concrete is a mixture made of various materials, including water, cement, additives, coarse aggregates, and fine aggregates. Among them, according to actual needs, the aggregates can also be made of various different materials, such as granite, limestone, old concrete, river sand, sea sand, stone powder, etc. Since some aggregates will participate in the chemical reactions in the concrete manufacturing process, different additives are required when using different aggregates to manufacture concrete.

[0003] Before concrete is put into actual production, it is necessary to detect the performance of the concrete, and detection reagents are required for the detection. For different additives, different detection reagents are also required, so the detection is rather troublesome. Therefore, in the prior art, there are also solutions to produce concrete using the same material as the aggregate, such as granite. In such solutions, since granite of different particle sizes is required as the aggregate, the granite raw materials need to be processed during the production process.

[0004] Common aggregate processing equipment can refer to Chinese Patent Application No. CN116459936A, which discloses a concrete aggregate processing equipment and processing method, including a crusher. A screening component is provided on one side of the crusher. The screening component includes a fixed frame and a screen. A fine material discharge frame is provided on one side of the fixed frame, and a coarse material discharge frame is provided on the other side. An intermittent conveying mechanism for sending the coarse material to the feed hopper is provided below the coarse material discharge frame. The concrete aggregate processing equipment in this application prevents the stones in the feed hopper of the crusher from being pushed and squeezed by setting an intermittent conveying mechanism, which affects the working efficiency of the crusher. Using the processing method of this concrete aggregate processing equipment, there will be no material blocking phenomenon, and the processing efficiency is high.

[0005] In view of the above related technologies, when producing granite aggregates of different particle sizes, the granite raw materials need to be processed multiple times to obtain granite aggregates of different particle sizes. Moreover, when producing granite raw materials of different particle sizes, different meshes of sieves need to be replaced, and the production process is rather cumbersome, which affects the processing efficiency of granite aggregates. Summary of the Invention

[0006] In order to improve the production efficiency of granite aggregates, the present application provides a granite crushing device.

[0007] The present application provides a granite crushing device, adopting the following technical solutions: A granite crushing device includes a crusher. A material collecting mechanism is provided at the discharge end of the crusher. The material collecting mechanism is used to collect the granite aggregates that have completed the crushing process. The crusher includes a housing and a number of crushing members. The number of crushing members are all located inside the housing and are vertically distributed along the housing. The crushing member includes a squeezing roller and a retaining ring. The squeezing roller is located inside the housing and is arranged vertically. The housing is provided with a driving member for driving the squeezing roller to rotate. The retaining ring is located outside the squeezing roller. The housing is provided with a connecting member for supporting the retaining ring. The gap between the retaining ring and the squeezing roller forms a crushing opening for squeezing the granite raw material. A filtering ring is provided at the lower end of the crushing member. The filtering ring is opposite to the crushing opening and is vertically provided with filter holes. The diameters of the filter holes of all the filtering rings decrease one by one from top to bottom. A pushing plate is fixedly provided at the lower end of the squeezing roller. The lower end of the pushing plate is close to the upper end surface of the filtering ring. A collecting part is provided at the lower end of the housing. The collecting part is opposite to the lowermost filtering ring. An outlet is provided on one side of the housing corresponding to the filtering ring. The material collecting assembly includes a number of collecting members and a number of reflux members. The collecting members correspond to the crushing members one by one and are connected to the outlet below the corresponding crushing member for collecting and screening the granite aggregates discharged from the outlet. The reflux members correspond to the collecting members one by one. The large-sized aggregates screened out by the collecting members are retransported by the collecting members into the crushing opening of the corresponding crushing member.

[0008] By adopting the above technical solution, the granite raw material is put into the feeding port of the uppermost crushing member. The driving member drives the squeezing roller to rotate. Under the supporting action of the supporting members inside the housing, the squeezing roller and the retaining ring cooperate to squeeze and crush the granite raw material. The crushed granite falls onto the filtering ring under the action of gravity. When the squeezing roller rotates, it drives the pushing plate to move along the filtering ring, so that the filtering ring filters the granite raw material. At this time, the granite aggregates with a particle size larger than the filter holes are discharged along the outlet to the collecting member. The collecting member screens the granite aggregates again and collects the granite aggregates with a particle size meeting the requirements, thereby processing the aggregates with the largest particle size. And the aggregates with a larger particle size are refluxed to the crushing member again through the reflux member for crushing processing. The granite aggregates passing through the filter holes fall to the next crushing member for secondary crushing processing. The aggregates completed the secondary processing fall onto the filtering ring below the corresponding crushing member again, and the qualified aggregates are discharged from the corresponding outlet. They are screened by the collecting member and the reflux member, thereby processing the aggregates with a medium particle size. Part of the granite aggregates pass through the lowermost filtering ring and fall into the collecting part, thereby obtaining the aggregates with the smallest particle size. When processing the granite aggregates, three different particle sizes of aggregates are processed simultaneously, which is beneficial to improving the production efficiency of the granite aggregates.

[0009] Optionally, the retaining ring is slidably connected to the machine housing in the vertical direction. The support member includes a threaded rod, a gear, a toothed ring, and a driving motor. The threaded rod is arranged parallel to the axis of the retaining ring, and the threaded rod is rotatably connected to the machine housing in the horizontal direction. The retaining ring is fixedly connected with driving blocks corresponding to the threaded rods one by one. The threaded rod passes through the driving block and is threadedly connected to the driving block. There are at least two groups of threaded rods, which are evenly distributed along the circumference of the retaining ring. The gear is coaxially fixed to one end of the threaded rod. The machine housing is provided with an avoidance opening adapted to the gear. The toothed ring is rotatably connected to the outside of the machine housing. The gear passes through the avoidance opening and meshes with the toothed ring. The driving motor is fixedly connected to the outside of the machine housing and is used to drive the toothed ring to rotate.

[0010] By adopting the above technical solution, when the driving motor drives the toothed ring to rotate, the toothed ring drives the threaded rod to rotate through the meshing action with the gear. The machine housing avoids the gear through the avoidance opening. Under the limiting action of the machine housing, when the threaded rod rotates, it drives the retaining ring to move along the axial direction, thereby adjusting the distance between the retaining ring and the pressing roller, and facilitating the processing of granite aggregates with different particle sizes. Multiple groups of threaded rods work synchronously, which is beneficial to improving the moving stability of the retaining ring.

[0011] Optionally, a guiding portion is provided on one side of the filtering ring close to the discharge port. The guiding portion is inclined away from the axis of the pressing roller from top to bottom, and the side of the guiding portion away from the axis of the pressing roller is directly opposite to the discharge port. A guiding ring is provided above the filtering ring. The guiding ring is sleeved on the outside of the pressing roller and is rotatably connected to the pressing roller, and the outer edge of the guiding ring is attached to the inner wall of the machine housing. The guiding ring is inclined in the horizontal direction from top to bottom, and a blanking port is provided at the lower end of the guiding ring. The blanking port and the guiding portion are arranged vertically in an alternating manner.

[0012] By adopting the above technical solution, the guiding portion is beneficial to improving the convenience of discharging granite aggregates from the filtering ring. At the same time, the guiding ring guides the granite aggregates falling towards the filtering ring. When the granite aggregates are discharged from the blanking port, they are not easily dropped onto the guiding portion, and the position where the granite aggregates fall on the filtering ring is fixed, so that when the pushing plate moves, it drives the granite aggregates to move along the longest trajectory on the filtering ring, which is beneficial to improving the filtering effect of the filtering ring on granite raw materials.

[0013] Optionally, a connecting ring is coaxially fixed to the guiding ring. The connecting ring is located outside the pressing roller and is coaxially and rotatably connected to the pressing roller. An impact rod is hinged to the pressing roller in the vertical direction. The impact rod is located outside the connecting ring. An elastic member is provided between the impact rod and the pressing roller. The elastic member is used to drive the impact rod to approach the connecting ring. A plurality of arc-shaped blocks are fixedly arranged on the outer edge of the connecting ring along the circumference. When the pressing roller works, it drives the impact rod to move along the arrangement trajectory of the arc-shaped blocks.

[0014] By adopting the above technical solution, under the action of the elastic member, the impact rod connecting ring is in contact, and when the extrusion roller rotates, the impact rod continuously contacts and separates from the arc block, thereby causing the guide ring to vibrate, which is beneficial to reducing the probability of granite aggregate getting stuck on the guide ring.

[0015] Optionally, the collecting member includes a support frame, sieve plate one and sieve plate two, the support frame is located outside the casing and is inclined from top to bottom in a direction away from the casing, sieve plate one is located at the upper end of the support frame and is parallel to the support frame, and a vibration motor is fixedly provided on the upper end of sieve plate one, sieve plate two is arranged parallel to a lower end of the sieve plate, the support frame is provided with a plurality of connecting blocks corresponding to sieve plate one and sieve plate two, respectively, sieve plate one and sieve plate two are movably connected to the support frame through the connecting blocks, a reflux member is arranged at an end of the support frame away from the casing, for receiving granite aggregate sliding along sieve plate one, the sieve hole diameter of sieve plate one is larger than the sieve hole diameter of sieve plate two, and a discharge port opposite to sieve plate two is opened at one end of the support frame away from the casing.

[0016] By adopting the above technical scheme, the support frame supports the sieve plate 1 and the sieve plate 2. When the granite aggregate is discharged from the discharge port, it directly falls on the sieve plate 1 and slides down along the inclined direction of the sieve plate 1. Under the connecting action of the connecting block, when the vibration motor works, it drives the sieve plate 1 to vibrate, and then the granite aggregate is screened. The granite aggregate passing through the sieve holes of the sieve plate 1 falls on the sieve plate 2 and is discharged and collected from the discharge port along the sieve plate 2. The particle size of the granite aggregate that does not pass through the sieve holes of the sieve plate 1 is larger than the standard, and is then returned to the crushing part through the reflux part for further processing. The granite aggregate passing through the sieve holes of the sieve plate 2 directly falls on the collecting part below for screening, which is beneficial to improving the processing accuracy of the granite aggregate.

[0017] Optionally, the second sieve plate includes a movable frame and two movable plates, the movable frame is located in the supporting frame and is connected to the connecting block, the two movable plates are both located in the movable frame, the sieve holes of the second sieve plate are located on the movable plate, the sides of the two movable plates that are away from each other are vertically hinged to the movable frame, the sides of the two movable plates that are close to each other are provided with locking members, the locking members are slidably connected to the movable plates along the width direction, a positioning bolt is provided between the two locking members, the positioning bolt is used to connect the two locking members, the upper ends of the two movable plates are fixedly connected with positioning rods, and a positioning groove corresponding to the positioning rod is provided on a lower end surface of the sieve plate, and when the positioning rod is inserted into the positioning groove, the side thereof facing away from the locking member contacts with the sieve plate one.

[0018] By adopting the above technical solution, the support frame is limited by the connecting block. In the initial state, the two locking members are connected under the connection of the positioning bolts. At this time, the two movable plates are in the same plane and parallel to the first sieve plate. The positioning rod is located in the positioning groove and contacts the first sieve plate. When the first sieve plate shakes under the action of the vibration motor, the two movable plates and the movable frame are driven to vibrate through the positioning rod. Furthermore, the movable plates screen the granite aggregate through the sieve holes. When the amount of granite aggregate corresponding to the corresponding collecting member reaches the required quantity, by splitting the two locking members, the two movable plates are separated from each other. At this time, the granite aggregate passing through the first sieve plate directly falls into the collecting member below and is transported to the crushing member below through the corresponding return member for crushing processing, which is beneficial to improving the production convenience of the aggregate.

[0019] Optionally, the locking member includes a sliding portion and a guiding block. A sliding groove is formed in the lateral side of the sliding portion along the transverse direction. One side of the movable plate is located in the sliding groove and is slidably connected to the sliding portion in the width direction. A positioning spring is provided between the movable portion and the movable plate, and the positioning spring is used to push the sliding portion away from the movable plate. The guiding block is fixedly connected to the upper end of the sliding portion and is parallel to the sliding portion, and the upper end surface of the guiding block is inclined from top to bottom in the direction from the sliding portion to the movable plate.

[0020] By adopting the above technical solution, the movable plate positions the sliding portion through the positioning spring. When granite aggregate falls above the sliding portion, the guiding block guides it and guides the granite aggregate to slide towards the movable plate, further improving the screening effect of the movable plate on the granite aggregate.

[0021] Optionally, the return member includes a diversion plate, a conveyor belt, and a feeding head. The diversion plate is fixedly arranged on the side of the support frame away from the machine case and is arranged along the width direction of the support frame. A diversion groove facing the first sieve plate is formed on the upper end surface of the diversion plate, and the diversion groove is inclined from top to bottom along the length direction of the diversion plate. The conveyor belt is located at the lower end of the diversion groove, used to receive the granite aggregate in the diversion groove and transport the granite aggregate to the machine shell. The machine shell is provided with a feeding port corresponding to the crushing member, and the feeding port is located above the crushing port of the corresponding crushing member. The feeding head is located between the feeding port and the conveyor belt, used to transport the granite aggregate on the conveyor belt to the feeding port.

[0022] By adopting the above technical solution, the granite aggregate sliding along the first sieve plate falls into the diversion plate and moves along the diversion groove towards the conveyor belt. When the granite aggregate lands on the conveyor belt, the conveyor belt drives the granite aggregate to rise and transports the granite aggregate to the feeding port through the feeding head, so that the granite aggregate enters the machine shell again through the feeding port for crushing processing, further improving the processing accuracy of the granite aggregate.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. Place the granite raw material into the feeding port of the uppermost crushing part. The driving part drives the extrusion roller to rotate. Under the support of the support part inside the machine shell, the extrusion roller and the retaining ring cooperate to extrude and crush the granite raw material. The crushed granite falls onto the filtering ring under the action of gravity. When the extrusion roller rotates, it drives the push plate to move along the filtering ring, enabling the filtering ring to filter the granite raw material. At this time, the granite aggregate with a particle size larger than the filter holes is discharged along the discharge port to the collecting part. The collecting part screens the granite aggregate again and collects the granite aggregate with a particle size meeting the requirements, thereby processing the aggregate with the largest particle size. Then, the aggregate with a larger particle size is returned to the crushing part for crushing processing again through the reflux part. The granite aggregate passing through the filter holes falls onto the next crushing part for secondary crushing processing. The aggregate completed with secondary processing falls onto the filtering ring below the corresponding crushing part again, and the qualified aggregate is discharged from the corresponding discharge port. It is screened by the collecting part and the reflux part, thereby processing the aggregate with a medium particle size. Part of the granite aggregate passes through the lowermost filtering ring and falls into the collecting part, thereby obtaining the aggregate with the smallest particle size. When processing granite aggregate, processing three different particle sizes of aggregate simultaneously is conducive to improving the production efficiency of granite aggregate; 2. The support frame supports the first sieve plate and the second sieve plate. When the granite aggregate is discharged from the discharge port, it directly falls above the first sieve plate and slides along the inclined direction of the first sieve plate. Under the connection of the connecting block, when the vibration motor works, it drives the first sieve plate to vibrate, thereby screening the granite aggregate. The granite aggregate passing through the sieve holes of the first sieve plate falls onto the second sieve plate and is discharged and collected along the discharge port of the second sieve plate. The granite aggregate that does not pass through the sieve holes of the first sieve plate has a particle size larger than the standard, and thus is returned to the crushing part through the reflux part for processing again. The granite aggregate passing through the sieve holes of the second sieve plate directly falls onto the collecting part below for screening, which is conducive to improving the processing accuracy of granite aggregate. Description of the Drawings

[0024] Figure 1 is the overall structural schematic diagram of the embodiment.

[0025] Figure 2 is the schematic diagram aiming to highlight the internal structure of the machine shell.

[0026] Figure 3 is the schematic diagram aiming to highlight the structures of the guiding ring and the filtering ring.

[0027] Figure 4 is the schematic diagram aiming to highlight the structure of the collecting part.

[0028] Figure 5 is the schematic diagram aiming to highlight the structure of the second sieve plate.

[0029] Description of reference numerals: 1. Machine housing; 11. Driving member; 12. Filter ring; 121. Guide portion; 131. Threaded rod; 132. Gear; 133. Tooth ring; 134. Driving motor; 14. Discharge port; 15. Collection portion; 16. Guide ring; 161. Feeding port; 162. Connecting ring; 163. Arc-shaped block; 17. Inlet; 18. Fine material collection box; 2. Crushing member; 21. Extrusion roller; 211. Pushing plate; 212. Knocking rod; 213. Elastic member; 22. Retaining ring; 221. Driving block; 3. Collection member; 31. Support frame; 311. Connecting block; 312. Connecting spring; 313. Discharge opening; 32. First sieve plate; 321. Positioning groove; 322. Extension plate; 33. Second sieve plate; 331. Movable frame; 332. Movable plate; 333. Positioning rod; 34. Vibration motor; 35. Locking member; 351. Sliding portion; 352. Guide block; 353. Sliding groove; 354. Positioning spring; 4. Return member; 41. Deflector; 411. Deflection groove; 42. Conveyor belt; 43. Feeding head. Detailed implementation manners

[0030] The following further describes the present application in detail in conjunction with all the attached drawings.

[0031] An embodiment of the present application discloses a granite crushing device.

[0032] Embodiment: Referring to Figure 1 and Figure 2 , a granite crushing device includes a crusher and a material collection mechanism. Among them, the crusher includes a machine housing 1 and multiple groups of crushing members 2 located inside the machine housing 1. In this embodiment, the crushing members 2 are set to two groups, and the crushing members 2 can also be set to three groups, four groups, etc. The crushing member 2 includes an extrusion roller 21 and a retaining ring 22. The extrusion roller 21 is located at the center of the machine housing 1 and is rotationally connected to the machine housing 1. The extrusion rollers 21 of the two groups of crushing members 2 are coaxially connected. The machine housing 1 is provided with a driving member 11 for driving the extrusion roller 21 to rotate. In this embodiment, the driving member 11 is a motor.

[0033] Referring to Figure 1 and Figure 2 , a frustum portion is fixedly provided along the outer circumference of the extrusion roller 21. The retaining ring 22 is sleeved outside the frustum portion and is slidably connected to the machine housing 1 in the axial direction. The gap between the retaining ring 22 and the frustum block forms a crushing opening. The machine housing 1 is provided with a support member for supporting the retaining ring 22. The support member includes a threaded rod 131, a gear 132, a tooth ring 133, and a driving motor 134. A driving block 221 is fixedly connected to the outer circumference of the retaining ring 22. A chute adapted to the driving block 221 is vertically opened on the inner wall of the machine housing 1. The driving block 221 is located in the chute and is slidably connected to the machine housing 1 along the length direction of the chute.

[0034] Referring to Figure 1 andFigure 2 The threaded rod 131 is located within the sliding groove, and is rotatably connected to the housing 1. The threaded rod 131 passes through the driving block 221 and is in threaded connection with the driving block 221. Under the limiting effect of the sliding groove, when the threaded rod 131 rotates, it drives the driving block 221 to move along the sliding groove, and further drives the retaining ring 22 to move vertically, so as to adjust the size of the gap between the retaining ring 22 and the frustum portion. The gears 132 correspond to the threaded rods 131 one by one, and the gears 132 are coaxially fixed to one end of the threaded rod 131 along the length direction. When the gears 132 rotate, they drive the threaded rod 131 to rotate.

[0035] Refer to Figure 1 and Figure 2 As shown in FIGS. and, the housing 1 is provided with an avoidance groove adapted to the gear 132. The toothed ring 133 is sleeved on the outer side of the housing 1. One side of the gear 132 passes through the avoidance groove and meshes with the toothed ring 133. When the toothed ring 133 rotates, it drives the gear 132 to rotate. The driving motor 134 is installed on the outer side of the housing 1 and is used to drive the toothed ring 133 to rotate. At least two groups of threaded rods 131 and gears 132 are arranged circumferentially around the retaining ring 22. The toothed ring 133 is used to drive all the threaded rods 131 to rotate synchronously, so as to improve the movement stability of the retaining ring 22.

[0036] Refer to Figure 1 and Figure 2 As shown in FIGS. and, an opening is provided at the upper end of the housing 1. The granite raw material is added into the housing 1 along the opening. Under the action of gravity, the granite raw material falls onto the uppermost crushing member 2. At this time, the driving member 11 drives the extrusion roller 21 to rotate. When the granite raw material enters the crushing opening, the retaining ring 22 cooperates with the rotating frustum portion to extrude the granite raw material, so that the granite raw material is crushed under the action of pressure.

[0037] Refer to Figure 2 and Figure 3 As shown in FIGS. and, a filter ring 12 is provided below the crushing member 2. The filter ring 12 is sleeved on the outer side of the extrusion roller 21 and is fixedly connected to the housing 1. The granite aggregate after being extruded and crushed falls onto the upper end surface of the filter ring 12 under the action of gravity. A guiding ring 16 is provided between the filter ring 12 and the frustum portion of the corresponding crushing member 2. The guiding ring 16 is also sleeved on the outer side of the extrusion roller 21 and is fixedly connected to the housing 1.

[0038] Refer to Figure 2 and Figure 3 As shown in FIGS. and, the guiding ring 16 is inclined from top to bottom in the diameter direction, and a blanking port 161 is vertically opened at the lower end of the guiding ring 16. When the granite aggregate separated from the frustum portion approaches the filter ring 12, it first contacts the guiding ring 16 and falls along the guiding ring 16 towards the blanking port 161. The guiding ring 16 guides the granite aggregate, so that the granite aggregate slides to a fixed point on the filter ring 12.

[0039] Refer to Figure 1 andFigure 3 The housing 1 is provided with a discharge port 14 corresponding to the filter ring 12 in the transverse direction. The discharge port 14 is located below the filter ring 12. A guiding portion 121 is provided on one side of the filter ring 12 close to the discharge port 14. The guiding portion 121 slopes downward from top to bottom along the direction pointing from the axis of the filter ring 12 to the outer edge. The side of the guiding portion 121 away from the axis of the filter ring 12 faces the discharge port 14 directly. In the vertical direction, the guiding portion 121 and the blanking port 161 are staggeredly arranged. After the granite aggregate falls onto the filter ring 12, it is on the side of the guiding portion 121.

[0040] Refer to Figure 2 and Figure 3 As shown in FIGS. and, a connecting ring 162 is coaxially fixed to the guiding ring 16. The connecting ring 162 is sleeved outside the extrusion roller 21 and is rotatably connected to the extrusion roller 21. The lower end of the frustum portion is hinged with a knocking rod 212 in the transverse direction. The end of the knocking rod 212 away from the frustum portion abuts against the outer edge of the connecting ring 162. An elastic member 213 is provided between the frustum portion and the knocking rod 212. The elastic member 213 is a torsion spring. One end of the torsion spring is fixedly connected to the frustum portion, and the other end is fixedly connected to the knocking rod 212. In the natural state of the elastic member 213, the knocking rod 212 is driven to closely adhere to the connecting ring 162. When the frustum block rotates, the knocking rod 212 is driven to move circumferentially along the connecting ring 162.

[0041] Refer to Figure 2 and Figure 3 As shown in FIGS. and, a plurality of arc-shaped blocks 163 are fixedly connected to the outer circumference of the connecting ring 162 along the circumferential direction. When the knocking rod 212 moves, it continuously contacts and separates from the arc-shaped blocks 163. When the knocking rod 212 contacts the arc-shaped blocks 163, or separates from the arc-shaped blocks 163 and then contacts the connecting ring 162 again, the connecting ring 162 is knocked, causing the connecting ring 162 to vibrate, thereby accelerating the movement of the granite aggregate along the guiding ring 16 and facilitating the reduction of the probability of the granite aggregate jamming and piling up on the guiding ring 16.

[0042] Refer to Figure 2 and Figure 3 As shown in FIGS. and, a plurality of pushing plates 211 are fixed to the outer edge of the extrusion roller 21. The pushing plates 211 are located above the filter ring 12, and the lower end surface of the pushing plates 211 is close to the upper end surface of the filter ring 12. When the extrusion roller 21 rotates, the pushing plates 211 are driven to move along the filter ring 12, thereby pushing the granite aggregate to move circumferentially along the filter ring 12. The filter ring 12 is uniformly provided with high-mesh filter holes in the vertical direction. When the granite aggregate moves along the filter ring 12, the filter ring 12 screens the granite aggregate. At this time, some granite aggregates with too small particle sizes directly pass through the filter holes and fall to the crushing openings of the next set of crushing members 2. When the granite aggregate moves along the filter ring 12 to the guiding portion 121, it is discharged from the discharge port 14 under the action of gravity.

[0043] Refer to Figure 1 and Figure 4, the material receiving components correspond to the crushing parts 2 one by one. The material receiving device includes a reflux part 4 and a collecting part 3. The collecting part 3 includes a support frame 31, a first sieve plate 32 and a second sieve plate 33. The first sieve plate 32 and the second sieve plate 33 are both provided with a plurality of sieve holes along the vertical direction, and the diameter of the sieve holes of the first sieve plate 32 is larger than that of the second sieve plate 33. The support frame 31 is connected to the machine housing 1, and the support frame 31 is located below the discharge port 14, and the support frame 31 is inclined from top to bottom in a direction away from the machine housing 1.

[0044] Refer to Figure 4 and Figure 5 , the first sieve plate 32 is located above the support frame 31 and is parallel to the support frame 31. Both sides of the support frame 31 along the transverse direction are provided with connecting blocks 311. The connecting blocks 311 are divided into two groups along the vertical direction. The connecting blocks 311 located above are used to support the first sieve plate 32, and the first sieve plate 32 is detachably connected to the corresponding connecting blocks 311 by bolts. The connecting blocks 311 are slidably connected to the support frame 31 along the transverse direction, and a connecting spring 312 is arranged between the connecting blocks 311 and the support frame 31. One end of the connecting spring 312 is fixedly connected to the connecting block 311, and the other end is fixedly connected to the support frame 31. A vibration motor 34 is arranged above the first sieve plate 32, and the vibration motor 34 is installed on any of the connecting blocks 311 located above. When the vibration motor works, it drives the connecting block 311 and the first sieve plate 32 to vibrate.

[0045] Refer to Figure 4 and Figure 5 , the second sieve plate 33 includes a movable frame 331 and two movable plates 332. The movable frame 331 is connected to the connecting blocks 311 below, and the support frame 31 supports the movable frame 331 through the connecting blocks 311. Both of the two movable plates 332 are located inside the movable frame 331, and one side of the two movable plates 332 close to each other is hinged to the movable frame 331 along the vertical direction. The sieve holes of the second sieve plate 33 are located on the largest end faces of the movable plates 332. A locking part is arranged on one side of the two movable plates 332 close to each other. The locking part includes a sliding part 351 and a guiding block 352. The sliding part 351 is arranged along the length direction of the movable plate 332, and a sliding groove 353 is opened along the transverse direction of the sliding part 351. One side of the movable plate 332 along the width direction is inserted into the sliding groove 353 and is slidably connected to the sliding part 351 along the transverse direction.

[0046] Refer to Figure 4 and Figure 5, the sliding part 351 forms a movable space between the two movable plates 332. When the two movable plates 332 are in the same plane, the two sliding parts 351 are in contact with each other. A positioning spring 354 is provided between the sliding part 351 and the movable plate 332. One end of the positioning spring 354 is fixedly connected to the sliding part 351, and the other end is fixedly connected to the movable plate 332. When the two sliding parts 351 approach each other, the positioning spring 354 is in a compressed state and exerts a thrust force on the sliding part 351 away from the movable plate 332.

[0047] Refer to Figure 4 and Figure 5 , a positioning bolt is provided between the two sliding parts 351. The positioning bolt is located below the sliding part 351, and the positioning bolt sequentially passes through the two sliding parts 351 and is threadedly connected with a nut. The positioning bolt and the nut cooperate to connect the two sliding parts 351, so that the two sliding parts 351 cooperate with the movable frame 331 to limit the movable plate 332, so that the two movable plates 332 are in the same plane and parallel to the first sieve plate 32. The guide block 352 is located above the sliding part 351 and is fixedly connected to the sliding part 351 along the length direction of the sliding part 351. The upper end surface of the guide block 352 is inclined from top to bottom along the direction from the sliding part 351 to the movable plate 332.

[0048] Refer to Figure 1 and Figure 4 , the granite aggregate discharged from the discharge port 14 is above the slideway of the support frame 31 and the first sieve plate 32, and slides along the inclined direction of the first sieve plate 32. The first sieve plate 32 screens the granite aggregate, so that the granite aggregate with a particle size smaller than the sieve holes of the first sieve plate 32 falls onto the movable plate 332. During this process, if a small amount of granite aggregate falls at the joint of the two movable plates 332, it will move towards the movable plate 332 under the guiding action of the guide block 352.

[0049] Refer to Figure 4 and Figure 5 , a positioning rod 333 is fixedly provided at the upper end of the movable plate 332. When the movable plate 332 moves, it drives the positioning rod 333 to move. A positioning groove 321 corresponding to the positioning rod 333 is opened at the lower end of the first sieve plate 32. When the movable plate 332 is parallel to the first sieve plate 32, the positioning rod 333 is located in the positioning groove 321, and the side of the positioning rod 333 away from the locking member 35 contacts the first sieve plate 32. When the first sieve plate 32 vibrates under the action of the vibration motor 34, it drives the movable plate 332 to vibrate through the positioning rod 333, thereby improving the screening effect of the movable plate 332 on the granite aggregate.

[0050] Refer to Figure 1 and Figure 4, a discharge port 313 is opened on the side of the support frame 31 away from the machine housing 1. The granite aggregate that has passed through the screening of the movable plate 332 is discharged from the discharge port 313 and collected. This part of the granite aggregate is the large particle part of all the granite aggregate. The granite aggregate passing through the movable plate 332 falls onto the first sieve plate 32 of the next collecting member 3 and is screened again. A fine material collecting box 18 is arranged below the lowermost collecting member 3, and the fine granite aggregate passing through all the collecting members 3 falls into the fine material box.

[0051] Refer to Figure 1 and Figure 4 , the reflux member 4 includes a guide plate 41, a conveyor belt 42 and a feeding head 43. The guide plate 41 is located on the side of the support frame 31 away from the machine housing 1 and is arranged along the width direction of the support frame 31. An extension plate 322 is fixedly arranged at one end of the first sieve plate 32 away from the machine housing 1. The extension plate 322 is used to guide the granite aggregate on the first sieve plate 32 towards the guide plate 41. A guide groove 411 is opened on the upper end surface of the guide plate 41 along the length direction. The granite aggregate moving along the first sieve plate 32 falls into the guide groove 411. The guide groove 411 is inclined from top to bottom along the length direction of the guide plate 41. After the granite aggregate falls into the guide groove 411, it moves along the inclined direction of the guide groove 411.

[0052] Refer to Figure 1 and Figure 4 , the conveyor belt 42 is located below the guide plate 41. The granite aggregate sliding down from the guide groove 411 falls onto the conveyor belt 42. The conveyor belt 42 is inclined from top to bottom, and the conveyor belt 42 drives the granite aggregate to rise when working. The feeding head 43 is installed at one end of the conveyor belt 42 away from the guide plate 41. The machine housing 1 is provided with a feeding port 17 corresponding to the crushing member 2 in the transverse direction. The feeding head 43 is communicated with the feeding port 17. When the conveyor belt 42 drives the granite aggregate to move to the feeding head 43, the feeding head 43 guides the granite aggregate into the feeding port 17.

[0053] Refer to Figure 1 and Figure 2 , the feeding port 17 is located above the crushing port of the corresponding crushing member 2. After the granite aggregate enters the machine housing 1 along the feeding port 17, it falls into the crushing port again for processing, and the large-diameter granite aggregate is processed twice, which is beneficial to improving the utilization rate of the raw materials. A collecting part 15 is arranged at the lowermost part of the machine housing 1. The collecting part 15 is communicated with the fine material collecting box 18. The collecting part 15 is located below the filtering ring 12. Among the granite aggregate in the machine housing 1, if there are fine aggregates passing through all the filtering rings 12, they will fall into the collecting part 15 under the action of gravity. The granite aggregate in the collecting part 15 and the fine material collecting box is the part with the smallest particle size among all the aggregates.

[0054] Refer to Figure 1 and Figure 2, among the two groups of crushing members 2, the lower crushing member 2 cooperates with the corresponding collecting member 3 for processing granite aggregates with medium particle sizes. Among all the granite aggregates, when the granite aggregate with the largest particle size reaches the required quantity, the positioning bolts at the corresponding movable plate 332 are disassembled, and the two movable plates 332 are separated, so that the granite aggregates passing through the first sieve plate 32 directly fall onto the first sieve plate 32 of the other collecting member 3 below, and are transported to the lower crushing member 2 among the two groups of crushing members 2 through the return member 4 below for processing medium-sized aggregate, which is beneficial to improving the convenience during the processing of granite aggregates.

[0055] The implementation principle of a granite crushing device according to an embodiment of the present application is as follows: When the granite raw material is input into the casing 1 from the open end above the casing 1, the upper crushing member 2 performs the first processing on the raw material, and the processed granite aggregates are preliminarily screened through the corresponding filtering ring 12. After the screened granite aggregates are discharged from the discharge port 14, they are subjected to a primary screening through the first sieve plate 32, and then the aggregates with too large particle sizes are screened out. The granite aggregates passing through the first sieve plate 32 are subjected to a secondary screening by the movable plate 332, and then the granite raw materials with too small particle sizes are screened out. The granite aggregates that have completed the screening are discharged and collected from the discharge port 313, and thus the granite aggregates with the largest particle sizes are obtained. The deflector 41, the conveyor belt 42, and the feeding head 43 cooperate, and the granite aggregates with too large particle sizes are recycled to the corresponding crushing member 2 for secondary processing. Among the two groups of crushing members 2, the lower crushing member 2 is used for processing granite aggregates with medium particle sizes. When the quantity of the granite aggregates with large particle sizes meets the requirements, the movable plate 332 of the upper collecting member 3 is disassembled, so that all the granite aggregates that have undergone the first crushing directly fall onto the collecting member 3 below, and are transported to the crushing member 2 for processing medium-sized aggregates through the corresponding return member 4, and thus medium-sized granite aggregates are obtained in batches. When the granite aggregates pass through all the filtering rings 12 and the collecting member 3, they fall into the collecting part 15 or the fine material collecting box 18 under the action of gravity, and thus the granite aggregates with the smallest particle sizes are obtained. Three different particle sizes of granite aggregates are processed simultaneously, which is beneficial to improving the production efficiency of granite aggregates.

[0056] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A granite crushing device, comprising a crusher, a material collecting mechanism is arranged at the discharge end of the crusher, and the material collecting mechanism is used for collecting the granite aggregates that have completed the crushing process, and is characterized in that: The crusher includes a housing (1) and a number of crushing members (2). The number of crushing members (2) are all located inside the housing (1) and are vertically distributed along the housing (1). The crushing member (2) includes a squeezing roller (21) and a retaining ring (22). The squeezing roller (21) is located inside the housing (1) and is arranged vertically. The housing (1) is provided with a driving member (11) for driving the squeezing roller (21) to rotate. The retaining ring (22) is located outside the squeezing roller (21). The housing (1) is provided with a connecting member for supporting the retaining ring (22). The gap between the retaining ring (22) and the squeezing roller (21) forms a crushing opening for squeezing granite raw materials. A filtering ring (12) is provided at the lower end of the crushing member (2). The filtering ring (12) is opposite to the crushing opening and is vertically provided with filter holes. The diameters of the filter holes of all the filtering rings (12) gradually decrease from top to bottom. A pushing plate (211) is fixedly provided at the lower end of the squeezing roller (21). The lower end of the pushing plate (211) is close to the upper end surface of the filtering ring (12). A collecting portion (15) is provided at the lower end of the housing (1). The collecting portion (15) is opposite to the lowermost filtering ring (12). An outlet (14) corresponding to the filtering ring (12) is opened on one side of the housing (1). The material collecting assembly includes a number of collecting members (3) and a number of reflux members (4). The collecting members (3) correspond to the crushing members (2) one by one and are connected to the outlet (14) below the corresponding crushing member (2) for collecting and screening the granite aggregates discharged from the outlet (14). The reflux members (4) correspond to the collecting members (3) one by one. The large-sized aggregates screened out by the collecting members (3) are transported back into the crushing opening of the corresponding crushing member (2) by the collecting members (3).

2. The granite crushing device according to claim 1, characterized in that: The retaining ring (22) is slidably connected to the housing (1) vertically. The supporting member includes a threaded rod (131), a gear (132), a toothed ring (133) and a driving motor (134). The threaded rod (131) is arranged parallel to the axis of the retaining ring (22), and the threaded rod (131) is rotatably connected to the housing (1) horizontally. The retaining ring (22) is fixedly connected with a driving block (221) corresponding to the threaded rod (131). The threaded rod (131) passes through the driving block (221) and is threadedly connected to the driving block (221). There are at least two groups of threaded rods (131) and they are evenly distributed along the circumference of the retaining ring (22). The gear (132) is coaxially fixed to one end of the threaded rod (131). The housing (1) is provided with an avoidance opening adapted to the gear (132). The toothed ring (133) is rotatably connected to the outside of the housing (1). The gear (132) passes through the avoidance opening and meshes with the toothed ring (133). The driving motor (134) is fixedly connected to the outside of the housing (1) for driving the toothed ring (133) to rotate.

3. A granite crushing device according to claim 1, characterized in that: A guide portion (121) is provided on one side of the filter ring (12) close to the discharge port (14); the guide portion (121) is inclined from top to bottom in a direction away from the axis of the squeezing roller (21); and the side of the guide portion (121) away from the axis of the squeezing roller (21) is directly opposite to the discharge port (14); a guide ring (16) is provided above the filter ring (12); the guide ring (16) is sleeved on the outside of the squeezing roller (21) and is rotatably connected to the squeezing roller (21); the outer edge of the guide ring (16) is in contact with the inner wall of the casing (1); the guide ring (16) is arranged to be inclined in the horizontal direction from top to bottom; and a discharge port (161) is provided at the lower end of the guide ring (16); the discharge port (161) and the guide portion (121) are arranged in a staggered manner in the vertical direction.

4. A granite crushing device according to claim 3, characterized in that: The guide ring (16) is coaxially fixed with a connecting ring (162), the connecting ring (162) is located outside the squeezing roller (21) and is coaxially rotatably connected with the squeezing roller (21), the squeezing roller (21) is vertically hinged with a striking rod, the striking rod is located outside the connecting ring (162), an elastic member (213) is provided between the striking rod and the squeezing roller (21), the elastic member (213) is used to drive the striking rod to approach the connecting ring (162), a plurality of arc blocks (163) are fixedly provided along the circumferential direction on the outer edge of the connecting ring (162), and the squeezing roller (21) drives the striking rod to move along the arrangement track of the arc blocks (163) when working.

5. A granite crushing device according to claim 1, characterized in that: The collecting member (3) comprises a supporting frame (31), a sieve plate 1 (32) and a sieve plate 2 (33); the supporting frame (31) is located outside the housing (1) and is arranged to be inclined from top to bottom in a direction away from the housing (1); the sieve plate 1 (32) is located at the upper end of the supporting frame (31) and is parallel to the supporting frame (31); a vibration motor (34) is fixedly arranged at the upper end of the sieve plate 1 (32); the sieve plate 2 (33) is arranged parallel to the lower end of the sieve plate 1 (32); the supporting frame (31) is provided with a plurality of sieve plates 1 (32) and 33, respectively connected to the sieve plates 1 (32) and 33; The sieve plate 2 (33) corresponds to a connecting block (311), the sieve plate 1 (32) and the sieve plate 2 (33) are both movably connected to the support frame (31) through the connecting block (311), the return member (4) is arranged at one end of the support frame (31) away from the casing (1), and is used to receive the granite aggregate sliding down the sieve plate 1 (32), the sieve hole diameter of the sieve plate 1 (32) is larger than the sieve hole diameter of the sieve plate 2 (33), and the end of the support frame (31) away from the casing (1) is opened with a discharge port (313) directly opposite to the sieve plate 2 (33).

6. The granite crushing device according to claim 5, wherein: The second sieve plate (33) includes a movable frame (331) and two movable plates (332). The movable frame (331) is located inside the support frame (31) and is connected to the connecting block (311). Both of the two movable plates (332) are located inside the movable frame (331). The sieve holes of the second sieve plate (33) are located on the movable plates (332). One side of each of the two movable plates (332) facing away from each other is hinged to the movable frame (331) vertically. A locking member (35) is provided on one side of each of the two movable plates (332) facing each other. The locking member (35) is slidably connected to the movable plate (332) along the width direction of the movable plate (332). A positioning bolt is provided between the two locking members (35) for connecting the two locking members (35). Positioning rods (333) are fixedly connected to the upper ends of the two movable plates (332). A positioning groove (321) corresponding to the positioning rod (333) is formed on the lower end surface of the first sieve plate (32). When the positioning rod (333) is inserted into the positioning groove (321), the side of the positioning rod (333) facing away from the locking member (35) abuts against the first sieve plate (32).

7. A granite crushing device according to claim 6, characterized in that: The locking member (35) includes a sliding portion (351) and a guiding block (352). A sliding groove (353) is formed on the lateral side of the sliding portion (351) along the transverse direction. One side of the movable plate (332) is located inside the sliding groove (353) and is slidably connected to the sliding portion (351) along the width direction. A positioning spring (354) is provided between the movable portion and the movable plate (332) for pushing the sliding portion (351) away from the movable plate (332). The guiding block (352) is fixedly connected to the upper end of the sliding portion (351) and is parallel to the sliding portion (351). The upper end surface of the guiding block (352) is inclined downward from top to bottom along the direction from the sliding portion (351) to the movable plate (332).

8. A granite crushing device according to claim 5, characterized in that: The reflux member (4) includes a guide plate (41), a conveyor belt (42), and a feeding head (43). The guide plate (41) is fixedly provided on the side of the support frame (31) away from the machine case and is arranged along the width direction of the support frame (31). A guide groove (411) facing the first sieve plate (32) is formed on the upper end surface of the guide plate (41). The guide groove (411) is inclined downward from top to bottom along the length direction of the guide plate (41). The conveyor belt (42) is located at the lower end of the guide groove (411) for receiving the granite aggregate in the guide groove (411) and conveying the granite aggregate to the machine shell (1). The machine shell (1) is provided with a feeding port (17) corresponding to the crushing member (2). The feeding port (17) is located above the crushing port of the corresponding crushing member (2). The feeding head (43) is located between the feeding port (17) and the conveyor belt (42) for conveying the granite aggregate on the conveyor belt (42) to the feeding port (17).

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