A crusher with a multi-layer screen structure suitable for magnesium calcium bricks

Abstract

The application belongs to the technical field of magnesia-calcium brick production, and particularly relates to a crusher with a multi-layer screening structure suitable for magnesia-calcium bricks. The existing crushers for magnesia-calcium brick production generally do not have a multi-layer screening structure. After crushing the raw ore, the un-screened raw ore particles and powders need to be manually collected for secondary screening. The present application proposes the following scheme. The scheme comprises a processing box, a support plate fixedly installed in the processing box, a plurality of discharge holes with equal intervals formed on the support plate, a baffle fixedly installed in the discharge hole, a grinding assembly connected to the processing box, a transmission assembly connected to the grinding assembly, and a driving motor fixedly installed at the rear side of the processing box. The driving motor can be started after the magnesia-calcium bricks to be crushed are placed on the support plate, so that the magnesia-calcium bricks can be crushed and multi-stage screened. When the magnesia-calcium bricks are crushed, the screening can be automatically realized, so that manual screening is not needed, and the application has good practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of magnesia-lime brick production, in particular to a crusher with a multi-layer screening structure suitable for magnesia-lime bricks. Background Art

[0002] Magnesia-calcium brick production, also known as high-calcium magnesium brick, is a magnesia refractory material with periclase as the main crystal phase and tricalcium silicate as the secondary crystal phase. The production of magnesia-calcium brick is made through processes such as crushing, batching, mixing, molding, firing and waterproofing. The raw materials need to be crushed by a crusher to crush the magnesium ore into 5-1mm, 1-0mm and 0.088mm, which increases the bulk density of the brick and reduces the cold cracking scrap rate during the firing process.

[0003] The crushers used for the production of magnesia-calcium bricks on the market generally do not have a multi-layer screening structure. After crushing the raw ore, the unscreened raw ore particle powder needs to be manually collected and screened for a second time. Therefore, we propose a crusher with a multi-layer screening structure suitable for magnesia-calcium bricks to solve the above problems. Summary of the Invention

[0004] Based on the background technology, there is a technical problem that the crushers used for the production of magnesia-lime bricks on the market generally do not have a multi-layer screening structure. After the raw ore is crushed, the unscreened raw ore particle powder needs to be manually collected and screened for a second time. The present invention proposes a crusher with a multi-layer screening structure suitable for magnesia-lime bricks.

[0005] The present invention proposes a crusher with a multi-layer screening structure suitable for magnesia-calcium bricks, comprising a processing box, a support plate fixedly installed in the processing box, and a plurality of discharge holes are opened at equal intervals on the support plate, a baffle is fixedly installed in the discharge hole, a grinding assembly is connected to the processing box, and a transmission assembly is connected to the grinding assembly, a drive motor is fixedly installed on the rear side of the processing box, the output shaft of the drive motor is connected to the transmission assembly, a connecting shaft is rotatably connected to the bottom inner wall of the processing box, and a filter assembly is connected to the connecting shaft, a drive assembly is connected to the connecting shaft, and the rear side of the drive assembly extends to the rear side of the processing box and is connected to the transmission assembly.

[0006] By means of the above structure, after the magnesia-calcium bricks are placed on the support plate, the drive motor is started to drive the transmission component to operate, so that the grinding component can be operated and moved downward at the same time to crush the magnesia-calcium bricks, and when the transmission component is in operation, the driving component can drive the connecting shaft to rotate, and the rotational force of the connecting shaft can drive the filtering component to operate, so that the crushed magnesia-calcium bricks can be graded and screened, and the filtering component can achieve a vibration effect, so when the magnesia-calcium brick particles are screened, the problem of magnesia-calcium bricks stacking will not occur, thereby improving the filtering efficiency of the magnesia-calcium bricks.

[0007] Preferably, the grinding assembly includes a U-shaped frame, a transmission shaft, a support member and a grinding plate, and the U-shaped frame is slidingly connected to the processing box, the transmission shaft passes through the top inner wall of the U-shaped frame and is rotatably connected to the top inner wall of the U-shaped frame, the transmission shaft is connected to the transmission assembly, and the U-shaped frame is connected to the transmission assembly, the support member is installed at the bottom end of the transmission shaft, and the support member is connected to the top of the grinding plate.

[0008] Furthermore, the U-shaped frame can be used to rotatably support the transmission shaft, and after the transmission shaft receives power from the transmission assembly, it can drive the grinding plate to rotate with the help of the supporting member to achieve rotational grinding of the magnesia-calcium bricks.

[0009] Preferably, the supporting member includes a connecting cover, a movable cover, a push rod, a buffer pad and an elastic member. The connecting cover is fixedly mounted on the bottom end of the transmission shaft, the top of the movable cover extends into the connecting cover and is slidingly connected to the inner wall of the connecting cover, the bottom of the movable cover is fixedly connected to the top of the grinding plate, the buffer pad is fixedly mounted in the movable cover, the push rod is fixedly mounted on the top inner wall of the connecting cover, the bottom end of the push rod extends into the movable cover and is fixedly connected to the top of the buffer pad, and the elastic member is respectively connected to the inner wall of the connecting cover and the movable cover.

[0010] Furthermore, the sliding connection between the connecting cover and the movable cover can be used to achieve sliding support for the grinding plate, and the elastic member and the buffer pad can be used to achieve elastic support for the grinding plate.

[0011] Preferably, the elastic member includes two limit rods, two compression springs and a support ring, the two limit rods are respectively fixedly mounted on the left inner wall and the right inner wall of the connecting cover, and the two limit rods both pass through the support ring and are slidably connected to the support ring, the movable cover is fixedly mounted on the bottom of the support ring, and the compression spring is sleeved on the corresponding limit rod, and the top and bottom ends of the compression spring are respectively fixedly connected to the top of the limit rod and the top of the support ring.

[0012] Furthermore, the compression spring can be used to elastically support the movable cover through the support ring, thereby avoiding the problem of damage to the grinding plate caused by excessive pressure when pressing the magnesia-calcium bricks.

[0013] Preferably, the transmission assembly includes a mounting plate, a threaded member, a transmission belt and a connecting member. The mounting plate is fixedly mounted on the rear side of the U-shaped frame, the threaded member passes through the mounting plate and is connected to the mounting plate, the threaded member is respectively connected to the connecting member and the rear side of the processing box, the transmission belts are respectively mounted on the transmission shaft and the threaded member and are respectively connected to the threaded member of the transmission shaft, and the connecting member is respectively connected to the drive assembly, the threaded member and the output shaft of the drive motor.

[0014] Further, the rotating force can be transmitted to the transmission shaft through the transmission belt when the threaded member rotates with the connecting member, and the threaded member can provide downward pressure to the grinding plate when rotating.

[0015] Preferably, the threaded member comprises a threaded pipe and a threaded plate, the threaded pipe penetrates the mounting plate and is rotationally connected with the mounting plate, the transmission belt is sleeved on the threaded pipe and is in transmission connection with the threaded pipe, the threaded plate is fixedly installed on the rear side of the processing box, the threaded pipe penetrates the threaded plate and is in threaded connection with the threaded plate, and the connecting member is connected with the inner side of the threaded pipe.

[0016] Further, the transmission shaft can be driven to rotate through the transmission belt when the threaded pipe rotates, and the grinding plate can move downward under the driving of the mounting plate.

[0017] Preferably, the connecting member comprises a rotating shaft, two sliding plates and two sliding rails, the rotating shaft is fixedly installed on the output shaft of the driving motor, the two sliding plates are respectively fixedly installed on the left side and the right side of the rotating shaft, the top end of the rotating shaft extends into the threaded pipe, and the two sliding rails are respectively fixedly installed on the left inner wall and the right inner wall of the threaded pipe, and the sliding plate is in sliding connection with the corresponding sliding rail.

[0018] Further, the threaded pipe can be driven to rotate when the rotating shaft rotates under the sliding cooperation of the two sliding rails and the two sliding plates, and the threaded pipe can continuously drive the threaded pipe to rotate when the threaded pipe moves longitudinally.

[0019] Preferably, the filtering assembly comprises a first screen, a second screen, a third screen and two mounting rods, the second screen is located between the first screen and the third screen, the two mounting rods are fixedly connected with the first screen, the second screen and the third screen, the connecting shaft penetrates the third screen and the second screen and is in sliding connection with the third screen and the second screen, the connecting shaft is sleeved with a tension spring located below the third screen, and the top end and the bottom end of the tension spring are fixedly connected with the bottom of the third screen and the connecting shaft.

[0020] Further, the aperture of the first screen is larger than that of the second screen, and the aperture of the second screen is larger than that of the third screen, so that the magnesium calcium bricks can be classified and screened when being crushed, thereby having good practicability.

[0021] Preferably, the driving assembly comprises a driving shaft, a driving worm, a transmission worm gear, a connecting worm and a driven worm gear, the driving shaft penetrates the rear inner wall of the processing box and is in rotational connection with the rear inner wall of the processing box, the driving worm is fixedly sleeved on the rotating shaft, the transmission worm gear is fixedly sleeved on the rear end of the driving shaft, the driving worm is in meshing connection with the transmission worm gear, the driven worm gear is fixedly sleeved on the connecting shaft, the connecting worm is fixedly sleeved on the front end of the driving shaft, and the connecting worm is in meshing connection with the driven worm gear.

[0022] Furthermore, when the shaft rotates, the driving shaft can be rotated under the meshing transmission action of the active worm and the transmission worm wheel, and then the connecting shaft can be driven to rotate under the meshing transmission action of the connecting worm and the driven worm wheel, thereby conveniently driving the filter assembly to rotate.

[0023] Preferably, two blocking wheels are symmetrically installed at the bottom of the three-stage screen, and two inclined panels are symmetrically fixedly installed at the bottom of the processing box, and the blocking wheels are in rolling contact with the inclined surfaces of the two inclined panels respectively.

[0024] Furthermore, with the cooperation of the baffle wheel and the inclined plate, the filter assembly can vibrate when it rotates, thereby facilitating the screening of magnesia-calcium bricks.

[0025] The beneficial effects of the present invention are:

[0026] 1. In the present invention, after the magnesia-calcium brick is placed on the support plate, the driving motor can be started to drive the rotating shaft to rotate. When the rotating shaft rotates, the threaded tube can be rotated under the sliding action of the two slide plates and the slide rail. When the threaded tube rotates, the transmission shaft can be driven to rotate by the transmission belt, and the grinding plate can be rotated at this time. When the threaded tube rotates, the U-shaped frame can be driven downward by the mounting plate under the thread transmission action of the threaded plate, so that the grinding plate can be displaced downward. At this time, the grinding plate can be used to rotate and crush the magnesia-calcium brick, so that the magnesia-calcium brick can be broken into granular fragments, which can then fall from the discharge hole onto the primary screen, so that the magnesia-calcium brick particles can be screened.

[0027] 2. In the present invention, when the rotating shaft rotates, the driving shaft can be rotated by the meshing transmission action of the active worm and the transmission worm gear. When the driving shaft rotates, the connecting shaft can be rotated by the meshing transmission action of the connecting worm and the driven worm gear, so that the filter assembly can be operated, and when the three-stage screen rotates, the two blocking wheels can be driven to perform circular motion, so that they can contact the inclined surfaces of the two inclined plates respectively. When the blocking wheels contact the inclined surfaces of the inclined plates, the height of the filter assembly can be lifted, and the tension spring can be put into a stressed state. When the blocking wheels pass through the inclined plates, the tension spring in a stressed state will pull the filter assembly downward, so that the filter assembly can be vibrated by reciprocating, and the crushed magnesia-calcium bricks can be screened according to volume using the first-stage screen, the second-stage screen and the third-stage screen.

[0028] The present invention can start the driving motor after placing the magnesia-lime bricks to be crushed on the support plate, thereby realizing the crushing and multi-stage screening of the magnesia-lime bricks. When the magnesia-lime bricks are crushed, screening can be automatically realized, so there is no need for manual screening, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a main cross-sectional view of the structure of a crusher with a multi-layer screening structure suitable for magnesia-lime bricks proposed by the present invention;

[0030] Figure 2 The invention proposes a multi-layer screening structure crusher for magnesia-calcium bricks. Figure 1 Schematic diagram of the structure of part A;

[0031] Figure 3 This is a front view of the internal structure of the connection cover of a crusher with a multi-layer screening structure suitable for magnesia-calcium bricks proposed by the present invention;

[0032] Figure 4 This is a rear view of the structure of a crusher with a multi-layer screening structure suitable for magnesia-lime bricks proposed by the present invention;

[0033] Figure 5 A top view of the structure of a crusher with a multi-layer screening structure suitable for magnesia-lime bricks proposed by the present invention;

[0034] Figure 6 A three-dimensional diagram of the connection structure of the first-stage screen, the second-stage screen and the third-stage screen of a crusher with a multi-layer screening structure suitable for magnesia-calcium bricks proposed by the present invention;

[0035] Figure 7 A three-dimensional diagram of the U-shaped frame, transmission belt and threaded pipe connection structure of a crusher with a multi-layer screening structure suitable for magnesia-calcium bricks proposed by the present invention;

[0036] Figure 8 This is a bottom view of the rotating shaft, two slide plates, two slide rails and threaded pipe connection structure of a crusher with a multi-layer screening structure suitable for magnesia-lime bricks proposed by the present invention.

[0037] In the figure: 1. Processing box; 2. Support plate; 3. Feeding hole; 4. Baffle; 5. U-shaped frame; 6. Drive shaft; 7. Connecting cover; 8. Grinding plate; 9. Limit rod; 10. Compression spring; 11. Moving cover; 12. Buffer pad; 13. Push rod; 14. Drive belt; 15. Drive motor; 16. Rotating shaft; 17. Threaded pipe; 18. Mounting plate; 19. Active worm; 20. Drive shaft; 21. Drive worm gear; 22. Slide plate; 23. Slide rail; 24. Threaded plate; 25. Connecting worm; 26. Driven worm gear; 27. Primary screen; 28. Secondary screen; 29. ​​Tertiary screen; 30. Inclined panel; 31. Stop wheel; 32. Connecting shaft; 33. Tension spring; 34. Mounting rod. DETAILED DESCRIPTION

[0038] The present invention will be further explained below with reference to specific embodiments.

[0039] Example

[0040] refer to Figure 1-8 In this embodiment, a crusher with a multi-layer screening structure suitable for magnesia-calcium bricks is proposed, including a processing box 1, a support plate 2 is fixedly installed in the processing box 1, and a plurality of discharge holes 3 are opened at equal intervals on the support plate 2, and a baffle 4 is fixedly installed in the discharge hole 3, a grinding assembly is connected to the processing box 1, and the grinding assembly is connected to the transmission assembly, a drive motor 15 is fixedly installed on the rear side of the processing box 1, and the output shaft of the drive motor 15 is connected to the transmission assembly, a connecting shaft 32 is rotatably connected to the inner wall of the bottom of the processing box 1, and a filtering assembly is connected to the connecting shaft 32, and a drive assembly is connected to the connecting shaft 32, and the rear side of the drive assembly extends to the rear side of the processing box 1 and is connected to the transmission assembly.

[0041] By means of the above structure, after the magnesia-calcium bricks are placed on the support plate 2, the drive motor 15 is started to drive the transmission component to operate, so that the grinding component can be operated and moved downward at the same time to crush the magnesia-calcium bricks, and when the transmission component is operating, the driving component can drive the connecting shaft 32 to rotate, and the rotational force of the connecting shaft 32 can drive the filtering component to operate, so that the crushed magnesia-calcium bricks can be graded and screened, and the filtering component can achieve a vibration effect, so when the magnesia-calcium brick particles are screened, the magnesia-calcium bricks will not accumulate, thereby improving the filtering efficiency of the magnesia-calcium bricks.

[0042] In this embodiment, the grinding assembly includes a U-shaped frame 5, a transmission shaft 6, a support member and a grinding plate 8, and the U-shaped frame 5 is slidingly connected to the processing box 1, the transmission shaft 6 passes through the top inner wall of the U-shaped frame 5 and is rotatably connected to the top inner wall of the U-shaped frame 5, the transmission shaft 6 is connected to the transmission assembly, and the U-shaped frame 5 is connected to the transmission assembly, the support member is installed at the bottom end of the transmission shaft 6, and the support member is connected to the top of the grinding plate 8.

[0043] The U-shaped frame 5 can be used to rotatably support the transmission shaft 6, and after the transmission shaft 6 receives the power of the transmission component, it can drive the grinding plate 8 to rotate with the help of the supporting member to realize the rotational grinding of the magnesia-calcium bricks.

[0044] In this embodiment, the supporting member includes a connecting cover 7, a movable cover 11, a push rod 13, a buffer pad 12 and an elastic member. The connecting cover 7 is fixedly mounted on the bottom end of the transmission shaft 6. The top of the movable cover 11 extends into the connecting cover 7 and is slidingly connected to the inner wall of the connecting cover 7. The bottom of the movable cover 11 is fixedly connected to the top of the grinding plate 8. The buffer pad 12 is fixedly mounted in the movable cover 11. The push rod 13 is fixedly mounted on the top inner wall of the connecting cover 7. The bottom end of the push rod 13 extends into the movable cover 11 and is fixedly connected to the top of the buffer pad 12. The elastic member is respectively connected to the inner wall of the connecting cover 7 and the movable cover 11.

[0045] The sliding connection between the connecting cover 7 and the movable cover 11 can realize sliding support of the grinding plate 8 , and the elastic member and the buffer pad 12 can realize elastic support of the grinding plate 8 .

[0046] In this embodiment, the elastic member includes two limit rods 9, two compression springs 10 and a support ring. The two limit rods 9 are respectively fixedly mounted on the left inner wall and the right inner wall of the connecting cover 7, and the two limit rods 9 both pass through the support ring and are slidably connected to the support ring. The movable cover 11 is fixedly mounted on the bottom of the support ring, and the compression spring 10 is sleeved on the corresponding limit rod 9. The top and bottom ends of the compression spring 10 are respectively fixedly connected to the top of the limit rod 9 and the top of the support ring.

[0047] The compression spring 10 can be used to elastically support the movable cover 11 through the support ring, thereby avoiding the problem of damage to the grinding plate 8 caused by excessive pressure when pressing the magnesia-calcium brick.

[0048] In this embodiment, the transmission assembly includes a mounting plate 18, a threaded member, a transmission belt 14 and a connecting member. The mounting plate 18 is fixedly mounted on the rear side of the U-shaped frame 5. The threaded member passes through the mounting plate 18 and is connected to the mounting plate 18. The threaded member is respectively connected to the connecting member and the rear side of the processing box 1. The transmission belt 14 is respectively mounted on the transmission shaft 6 and the threaded member and is respectively connected to the threaded member of the transmission shaft 6. The connecting member is respectively connected to the drive assembly, the threaded member and the output shaft of the drive motor 15.

[0049] When the threaded member rotates along with the connecting member, the rotational force can be transmitted to the transmission shaft 6 through the transmission belt 14, and the threaded member can provide downward pressure to the grinding plate 8 when it is in operation.

[0050] In this embodiment, the threaded member includes a threaded tube 17 and a threaded plate 24. The threaded tube 17 passes through the mounting plate 18 and is rotatably connected to the mounting plate 18. The transmission belt 14 is sleeved on the threaded tube 17 and is transmission-connected to the threaded tube 17. The threaded plate 24 is fixedly installed on the rear side of the processing box 1. The threaded tube 17 passes through the threaded plate 24 and is threadedly connected to the threaded plate 24. The connecting member is connected to the inner side of the threaded tube 17.

[0051] When the threaded tube 17 rotates, the transmission shaft 6 can be driven to rotate through the transmission belt 14 , and the grinding plate 8 can be driven by the mounting plate 18 to move downward.

[0052] In this embodiment, the connecting member includes a rotating shaft 16, two slides 22 and two slide rails 23. The rotating shaft 16 is fixedly mounted on the output shaft of the drive motor 15, and the two slides 22 are fixedly mounted on the left and right sides of the rotating shaft 16 respectively. The top end of the rotating shaft 16 extends into the threaded tube 17, and the two slide rails 23 are fixedly mounted on the left inner wall and the right inner wall of the threaded tube 17 respectively. The slides 22 are slidably connected to the corresponding slide rails 23.

[0053] Under the sliding cooperation between the two slide rails 23 and the two slide plates 22 , the threaded tube 17 can be driven to rotate when the rotating shaft 16 rotates, and the threaded tube 17 can be continuously driven to rotate when the threaded tube 17 moves longitudinally.

[0054] In this embodiment, the filter assembly includes a primary screen 27, a secondary screen 28, a tertiary screen 29 and two mounting rods 34. The secondary screen 28 is located between the primary screen 27 and the tertiary screen 29. The two mounting rods 34 are fixedly connected to the primary screen 27, the secondary screen 28 and the tertiary screen 29. The connecting shaft 32 passes through the tertiary screen 29 and the secondary screen 28 respectively and is slidingly connected to the tertiary screen 29 and the secondary screen 28 respectively. A tension spring 33 is provided on the connecting shaft 32 and is located below the tertiary screen 29, and the top and bottom ends of the tension spring 33 are fixedly connected to the bottom of the tertiary screen 29 and the connecting shaft 32 respectively.

[0055] The aperture of the first-stage screen 27 is larger than that of the second-stage screen 28, and the aperture of the second-stage screen 28 is larger than that of the third-stage screen 29. Therefore, when the magnesia-calcium bricks are crushed, graded screening can be achieved, which has good practicality.

[0056] In this embodiment, Figure 1 and Figure 4As shown, the drive assembly includes a drive shaft 20, a driving worm 19, a transmission worm wheel 21, a connecting worm 25 and a driven worm wheel 26. The drive shaft 20 passes through the rear inner wall of the processing box 1 and is rotatably connected to the rear inner wall of the processing box 1. The driving worm 19 is fixedly sleeved on the rotating shaft 16, and the transmission worm wheel 21 is fixedly sleeved on the rear end of the drive shaft 20. The driving worm 19 is meshed with the transmission worm wheel 21. The driven worm wheel 26 is fixedly sleeved on the connecting shaft 32, and the connecting worm 25 is fixedly sleeved on the front end of the drive shaft 20. The connecting worm 25 is meshed with the driven worm wheel 26.

[0057] When the rotating shaft 16 rotates, the driving shaft 20 can be rotated under the meshing transmission action of the active worm 19 and the transmission worm wheel 21, and then the connecting shaft 32 can be driven to rotate under the meshing transmission action of the connecting worm 25 and the driven worm wheel 26, thereby conveniently driving the filter assembly to rotate.

[0058] In this embodiment, the bottom of the third-stage screen 29 is symmetrically installed with a stop wheel 31, and the number of the stop wheels 31 is two. The bottom of the processing box 1 is symmetrically fixed with inclined panels 30, and the number of the inclined panels 30 is two. The stop wheel 31 is in rolling contact with the inclined surfaces of the two inclined panels 30 respectively.

[0059] With the cooperation of the blocking wheel 31 and the inclined plate 30, the filter assembly can vibrate when it rotates, so as to facilitate the screening of magnesia-lime bricks.

[0060] In this embodiment, after the magnesia-calcium brick is placed on the support plate 2, the drive motor 15 can be started to drive the rotating shaft 16 to rotate. When the rotating shaft 16 rotates, the threaded tube 17 can be rotated under the sliding action of the two slides 22 and the slide rail 23. When the threaded tube 17 rotates, the transmission shaft 6 can be driven to rotate by the transmission belt 14. At this time, the grinding plate 8 can be rotated, and when the threaded tube 17 rotates, the U-shaped frame 5 can be driven downward by the mounting plate 18 under the threaded transmission action of the threaded plate 24, so that the grinding plate 8 can be displaced downward. At this time, the grinding plate 8 can be used to rotate the magnesia-calcium brick. The magnesia-calcium bricks can be crushed by rolling to form particle fragments, which can then fall from the discharge hole 3 onto the primary screen 27 to screen the magnesia-calcium brick particles. When the rotating shaft 16 rotates, the driving shaft 20 can be rotated by the meshing transmission of the active worm 19 and the transmission worm wheel 21. When the driving shaft 20 rotates, the connecting shaft 32 can be rotated by the meshing transmission of the connecting worm 25 and the driven worm wheel 26, so that the filter assembly can be operated, and when the tertiary screen 29 rotates, the two blocking wheels 31 can be driven to perform circular motion, so that they can contact the inclined surfaces of the two inclined panels 30 respectively.

[0061] When the stop wheel 31 contacts the inclined surface of the inclined plate 30, the height of the filter assembly can be raised, and the tension spring 33 will be in a stressed state. When the stop wheel 31 passes through the inclined plate 30, the tension spring 33 in a stressed state will pull the filter assembly downward, so that the filter assembly can be vibrated by reciprocating. The crushed magnesia-calcium bricks can be screened according to their volume using the first-level screen 27, the second-level screen 28 and the third-level screen 29. When the magnesia-calcium bricks are crushed, screening can be automatically achieved, so there is no need for manual screening, which has good practicality.

[0062] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A crusher with a multi-layer screening structure suitable for magnesia-calcium bricks, comprising a processing box (1), characterized in that: A support plate (2) is fixedly installed in the processing box (1), and a plurality of discharge holes (3) are opened on the support plate (2) at equal intervals, and a baffle (4) is fixedly installed in the discharge hole (3), a grinding assembly is connected to the processing box (1), and a transmission assembly is connected to the grinding assembly, a driving motor (15) is fixedly installed on the rear side of the processing box (1), and the output shaft of the driving motor (15) is connected to the transmission assembly, a connecting shaft (32) is rotatably connected to the inner wall of the bottom of the processing box (1), and a filter assembly is connected to the connecting shaft (32), and a driving assembly is connected to the connecting shaft (32), and The rear side of the driving assembly extends to the rear side of the processing box (1) and is connected to the transmission assembly. The filtering assembly includes a primary screen (27), a secondary screen (28), a tertiary screen (29) and two mounting rods (34). The secondary screen (28) is located between the primary screen (27) and the tertiary screen (29). The two mounting rods (34) are fixedly connected to the primary screen (27), the secondary screen (28) and the tertiary screen (29). The connecting shaft (32) passes through the tertiary screen (29) and the secondary screen (28) and is respectively connected to the tertiary screen (29) and the secondary screen (28). The connecting shaft (32) is provided with a tension spring (33) located below the three-stage screen (29), and the top and bottom ends of the tension spring (33) are fixedly connected to the bottom of the three-stage screen (29) and the connecting shaft (32), respectively. The bottom of the three-stage screen (29) is symmetrically installed with a blocking wheel (31), and the number of the blocking wheels (31) is two. The bottom of the processing box (1) is symmetrically fixed with an inclined panel (30), and the number of the inclined panel (30) is two. The blocking wheel (31) is in rolling contact with the inclined surface of the two inclined panels (30), respectively. The driving assembly includes a driving A driving shaft (20), an active worm (19), a transmission worm wheel (21), a connecting worm (25) and a driven worm wheel (26), wherein the driving shaft (20) passes through the rear inner wall of the processing box (1) and is rotatably connected to the rear inner wall of the processing box (1), and the transmission worm wheel (21) is fixedly sleeved on the rear end of the driving shaft (20), the active worm (19) is meshed with the transmission worm wheel (21), the driven worm wheel (26) is fixedly sleeved on the connecting shaft (32), and the connecting worm (25) is fixedly sleeved on the front end of the driving shaft (20), and the connecting worm (25) is meshed with the driven worm wheel (26).

2. A crusher with a multi-layer screening structure suitable for magnesia-lime bricks according to claim 1, characterized in that: The grinding assembly comprises a U-shaped frame (5), a transmission shaft (6), a supporting member and a grinding plate (8), wherein the U-shaped frame (5) is slidably connected to the processing box (1), the transmission shaft (6) passes through the top inner wall of the U-shaped frame (5) and is rotationally connected to the top inner wall of the U-shaped frame (5), the transmission shaft (6) is connected to the transmission assembly, and the U-shaped frame (5) is connected to the transmission assembly, the supporting member is installed at the bottom end of the transmission shaft (6), and the supporting member is connected to the top of the grinding plate (8).

3. A crusher with a multi-layer screening structure suitable for magnesia-lime bricks according to claim 2, characterized in that: The supporting member comprises a connecting cover (7), a movable cover (11), a push rod (13), a buffer pad (12) and an elastic member, wherein the connecting cover (7) is fixedly mounted on the bottom end of the transmission shaft (6), the top of the movable cover (11) extends into the connecting cover (7) and is slidably connected to the inner wall of the connecting cover (7), the bottom of the movable cover (11) is fixedly connected to the top of the grinding plate (8), the buffer pad (12) is fixedly mounted in the movable cover (11), the push rod (13) is fixedly mounted on the top inner wall of the connecting cover (7), the bottom end of the push rod (13) extends into the movable cover (11) and is fixedly connected to the top of the buffer pad (12), and the elastic member is respectively connected to the inner wall of the connecting cover (7) and the movable cover (11).

4. A crusher with a multi-layer screening structure suitable for magnesia-lime bricks according to claim 3, characterized in that: The elastic member comprises two limiting rods (9), two compression springs (10) and a support ring, the two limiting rods (9) are fixedly mounted on the left inner wall and the right inner wall of the connecting cover (7), respectively, and the two limiting rods (9) both pass through the support ring and are slidably connected to the support ring, the movable cover (11) is fixedly mounted on the bottom of the support ring, and the compression spring (10) is sleeved on the corresponding limiting rod (9), and the top and bottom ends of the compression spring (10) are fixedly connected to the top of the limiting rod (9) and the top of the support ring, respectively.

5. The crusher with a multi-layer screening structure suitable for magnesia-lime bricks according to claim 2, characterized in that: The transmission assembly comprises a mounting plate (18), a threaded member, a transmission belt (14) and a connecting member, wherein the mounting plate (18) is fixedly mounted on the rear side of the U-shaped frame (5), the threaded member passes through the mounting plate (18) and is connected to the mounting plate (18), the threaded member is respectively connected to the connecting member and the rear side of the processing box (1), the transmission belt (14) is respectively mounted on the transmission shaft (6) and the threaded member and is respectively connected to the transmission shaft (6) and the threaded member, and the connecting member is respectively connected to the drive assembly, the threaded member and the output shaft of the drive motor (15).

6. A crusher with a multi-layer screening structure suitable for magnesia-lime bricks according to claim 5, characterized in that: The threaded member comprises a threaded tube (17) and a threaded plate (24), the threaded tube (17) passes through the mounting plate (18) and is rotatably connected to the mounting plate (18), and the transmission belt (14) is sleeved on the threaded tube (17) and is transmission-connected to the threaded tube (17), the threaded plate (24) is fixedly mounted on the rear side of the processing box (1), the threaded tube (17) passes through the threaded plate (24) and is threadably connected to the threaded plate (24), and the connecting member is connected to the inner side of the threaded tube (17).

7. The crusher with a multi-layer screening structure suitable for magnesia-lime bricks according to claim 5, characterized in that: The connecting member comprises a rotating shaft (16), two slide plates (22) and two slide rails (23), the rotating shaft (16) is fixedly mounted on the output shaft of the driving motor (15), and the two slide plates (22) are respectively fixedly mounted on the left and right sides of the rotating shaft (16), the top end of the rotating shaft (16) extends into the threaded tube (17), and the two slide rails (23) are respectively fixedly mounted on the left inner wall and the right inner wall of the threaded tube (17), the slide plates (22) are slidably connected to the corresponding slide rails (23), and the active worm (19) is fixedly sleeved on the rotating shaft (16).

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