An alumina raw material crushing device

Abstract

The present invention provides a pulverizing device for alumina raw materials, mainly relating to the technical field of alumina pulverization. It includes a machine body, on which there is a motor. The rotating shaft of the motor is connected to a cutting device. The cutting device is rotatably arranged on the machine body. At the end of the cutting device, there is a first synchronous pulley. Both ends of the first synchronous belt are meshed with the first synchronous pulley and a second synchronous pulley. The second synchronous pulley is fixedly arranged on a power shaft. The power shaft is rotatably arranged on the machine body. On the power shaft, there is a first bevel gear. The first bevel gear is meshed with a second bevel gear. The second bevel gear is fixedly arranged on the rotating shaft of a screw rod. The screw rod is rotatably arranged on a feeding cylinder. The feeding cylinder is fixedly arranged on the machine body. On the machine body, there is a filtering cylinder which wraps the cutting device. On the machine body, there is a reversing device and a lifting device. The reversing device is used to control the lifting of the lifting device. On the machine body, there is a through-hole device which dredges the round holes of the filtering cylinder to facilitate improving the discharging efficiency of the finished product.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of alumina crushing, and particularly relates to a crushing device for alumina raw materials. Background Art

[0002] With the development of the national industry, the demand for alumina in many industries is increasing. The freshly mined alumina raw materials are relatively large blocks and cannot be directly used. They need to be crushed by a crusher and then undergo secondary processing. Therefore, a crusher is required when crushing alumina raw materials.

[0003] In the prior art, a patent application with the publication number CN1089568341A discloses an ultrafine crusher for producing alumina micropowder. The crushing knives of this device are arranged on the crushing disc, and the crushing knives crush the raw materials. However, the funnel of this device cannot be automatically cleaned, and it is not convenient for feeding and discharging. Summary of the Invention

[0004] Aiming at the above technical problems, the purpose of the present invention is to provide a crushing device for alumina raw materials. The through-hole device of this device dredges and cleans the filtering cylinder, facilitates feeding by placing the raw materials in the raw material bin, and the screw and the feeding cylinder discharge the crushed alumina raw materials.

[0005] A crushing device for alumina raw materials includes a machine body. A motor is arranged on the machine body, and the rotating shaft of the motor is connected to a cutting device. The cutting device is rotatably arranged on the machine body. A synchronous pulley one is arranged at the end of the cutting device. Both ends of a synchronous belt one are engaged with the synchronous pulley one and a synchronous pulley two. The synchronous pulley two is fixedly arranged on a power shaft. The power shaft is rotatably arranged on the machine body. A bevel gear one is arranged on the power shaft. The bevel gear one is engaged with a bevel gear two. The bevel gear two is fixedly arranged on the rotating shaft of a screw. The screw is rotatably arranged on a feeding cylinder. The feeding cylinder is fixedly arranged on the machine body. A filtering cylinder is arranged on the machine body. The filtering cylinder wraps the cutting device. A reversing device and a lifting device are arranged on the machine body. The reversing device is used to control the lifting of the lifting device. A through-hole device is arranged on the machine body. The through-hole device dredges the round holes of the filtering cylinder.

[0006] Further, the reversing device includes a driving gear one and a driving gear two. The driving gear one and the driving gear two are sequentially arranged on the power shaft. The driving gear one is engaged with a double gear set. The driving gear two is engaged with an intermediate gear. The intermediate gear and the double gear set are rotatably arranged on the machine body. A driven gear is slidably arranged on an input rotating shaft. The input rotating shaft is rotatably arranged on the machine body. A push plate is slidably arranged on the machine body. Both ends of a spring one are respectively connected to the push plate and the machine body. The push plate contacts the driven gear. The spring one is fixedly arranged on the machine body. A circular push cylinder is arranged on the telescopic shaft of a hydraulic rod. The circular push cylinder is inserted into the input rotating shaft and contacts the driven gear.

[0007] Further, the lifting device includes two third synchronous pulleys which are fixedly arranged on the input rotating shaft. The second synchronous belt meshes with the third synchronous pulleys and the fourth synchronous pulley at the same time. The fourth synchronous pulley is fixedly arranged on the synchronous shaft. The synchronous shaft is rotatably arranged on the machine body. The second synchronous belt is connected with the translation pressing plate. The translation pressing plate is rotatably connected with the lower translation end of the telescopic device. The lower rotating end of the telescopic device is rotatably arranged on the machine body. The upper rotating end of the telescopic device is rotatably arranged on the lifting plate. The upper translation end of the telescopic device is slidably arranged on the lifting plate.

[0008] Further, a raw material bin and an L-shaped rod are rotatably arranged on the lifting plate, and a horizontal straight plate is arranged on the rotating shaft of the raw material bin.

[0009] Further, a flip cover is rotatably arranged at the opening of the machine body. Two ends of a connecting rod are respectively rotatably connected with the middle part of the flip cover and one end of a rotating rod. The other end of the rotating rod is rotatably arranged on the machine body. The L-shaped rod is used to push the rotating rod to rotate. A retaining platform is arranged on the machine body, and the retaining platform is used to block the horizontal straight plate.

[0010] Further, the through-hole device includes an outer wrapping plate which is arranged on the machine body and located outside the filter cylinder. A round hole is arranged below the outer wrapping plate. The round hole of the outer wrapping plate is used for discharging materials. The discharging hole of the outer wrapping plate is aligned with the feeding hole of the material conveying cylinder.

[0011] Further, a through-hole row rod is slidably arranged on the outer wrapping plate in sequence. The number of through-hole row rods is the same as the number of through-hole rows on the filter cylinder. The through-hole row rod is used to dredge the round holes of the filter cylinder. There are two turntables which are rotatably arranged on both sides of the machine body. There are a plurality of arc grooves on the turntables. The arc grooves of the turntables form a sliding fit with both ends of the through-hole row rod.

[0012] Further, a power rotating rod is rotatably arranged on the turntable. Two ends of a second spring are respectively connected with the power rotating rod and the turntable. A blocking platform is arranged on the turntable. The blocking platform contacts with the power rotating rod and prevents the power rotating rod from rotating clockwise.

[0013] Further, a pull rod is rotatably arranged on the turntable. The pull rod passes through the slot hole of the pull rod platform. Two ends of a third spring are respectively connected with the pull rod and the pull rod platform.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: (1) The raw material bin of the present invention is used to load alumina raw materials, transport them from a low position to a high position, and the flip cover automatically opens. At the same time, the raw material bin automatically rotates to transport the raw materials into the machine body for cutting. The feeding is simple and there is no need for manual labor to lift the raw materials and then add them to the machine body; (2) When the raw material bin rises for feeding each time, the dredging device of the present invention automatically drives the power rotating rod and the turntable to rotate, driving the through-hole row rod to move, and completing the filtering and cleaning of the filter cylinder, which is convenient for improving the discharging efficiency of the finished product; (3) The present invention is provided with a filter cylinder. The cutting device cuts and crushes the alumina raw materials. When the size of the alumina is smaller than the size of the round holes of the filter cylinder, the crushed alumina falls from the round holes of the filter cylinder into the inlet of the material transfer cylinder to produce particles of the required size, and then the finished product is transported out by using a screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 is a schematic diagram of the overall structure of the present invention when the lifting device rises.

[0017] Figure 3 is Figure 2 a partial enlarged view of A in

[0018] Figure 4 is a schematic diagram of the overall bottom structure of the present invention.

[0019] Figure 5 is Figure 4 a partial enlarged view of B in

[0020] Figure 6 is Figure 4 a partial enlarged view of C in

[0021] Figure 7 is a schematic diagram of the machine body structure of the present invention.

[0022] Figure 8 is Figure 7 a partial enlarged view of D in

[0023] Figure 9 is a schematic diagram of the lifting device structure of the present invention.

[0024] Figure 10 is a schematic diagram of the flip cover installation structure of the present invention.

[0025] Figure 11 is a schematic diagram of the outer plate installation structure of the present invention.

[0026] Figure 12 is a schematic diagram of the turntable installation structure of the present invention.

[0027] Figure 13For Figure 12 Partial enlarged view at position E in

[0028] Reference numerals: 1 - body; 2 - motor; 3 - cutting device; 4 - first synchronous pulley; 5 - second synchronous pulley; 6 - first synchronous belt; 7 - power shaft; 8 - first bevel gear; 9 - second bevel gear; 10 - screw; 11 - feeding cylinder; 12 - filtering cylinder; 13 - first driving gear; 14 - second driving gear; 15 - intermediate gear; 16 - double gear set; 17 - driven gear; 18 - input rotating shaft; 19 - push plate; 20 - guide rod; 21 - first spring; 22 - hydraulic rod; 23 - circular pushing cylinder; 24 - third synchronous pulley; 25 - fourth synchronous pulley; 26 - synchronous shaft; 27 - second synchronous belt; 28 - translation pressing plate; 29 - telescopic device; 30 - lifting plate; 31 - raw material bin; 32 - L-shaped rod; 33 - horizontal straight plate; 34 - rotating rod; 35 - connecting rod; 36 - flip cover; 37 - blocking table; 38 - outer wrapping plate; 39 - through-hole row rod; 40 - turntable; 41 - power rotating rod; 42 - second spring; 43 - blocking platform; 44 - pull rod; 45 - third spring; 46 - pull rod platform. Detailed implementation manners

[0029] The present invention will be further described below in conjunction with specific embodiments. Here, the present invention is explained through illustrative embodiments of the present invention, but it does not limit the present invention.

[0030] Embodiment 1: As Figures 1 to 13 shown, an alumina raw material crushing device includes a body 1. A motor 2 is provided on the body 1. The rotating shaft of the motor 2 is connected to a cutting device 3. The cutting device 3 is rotatably arranged on the body 1. A first synchronous pulley 4 is provided at the end of the cutting device 3. Both ends of a first synchronous belt 6 are meshed with the first synchronous pulley 4 and the second synchronous pulley 5. The second synchronous pulley 5 is fixedly arranged on a power shaft 7. The power shaft 7 is rotatably arranged on the body 1. A first bevel gear 8 is provided on the power shaft 7. The first bevel gear 8 is meshed with a second bevel gear 9. The second bevel gear 9 is fixedly arranged on the rotating shaft of a screw 10. The screw 10 is rotatably arranged on a feeding cylinder 11. The feeding cylinder 11 is fixedly arranged on the body 1. A filtering cylinder 12 is provided on the body 1. The filtering cylinder 12 wraps the cutting device 3. A reversing device and a lifting device are provided on the body 1. The reversing device is used to control the lifting of the lifting device. A through-hole device is provided on the body 1. The through-hole device dredges the round holes of the filtering cylinder 12.

[0031] Specifically, the motor 2 drives the cutting device 3 to rotate. The cutting device 3 crushes the alumina raw material. When the size of the crushed raw material is smaller than the round holes of the filtering cylinder 12, the crushed raw material falls out through the round holes of the filtering cylinder 12 and enters the material conveying cylinder 11 through the lower round holes of the retaining platform 37. The cutting device 3 drives the first synchronous pulley 4 to rotate. Power is transmitted through the first synchronous belt 6 and the second synchronous pulley 5, causing the power shaft 7 to rotate. Then, power is transmitted through the first bevel gear 8 and the second bevel gear 9, causing the screw rod 10 to rotate in the material conveying cylinder 11. The material conveying cylinder 11 transports the crushed raw material out from the outlet of the material conveying cylinder 11.

[0032] The commutation device includes the first driving gear 13 and the second driving gear 14. The first driving gear 13 and the second driving gear 14 are sequentially arranged on the power shaft 7. The first driving gear 13 meshes with the double gear set 16. The second driving gear 14 meshes with the intermediate gear 15. The intermediate gear 15 and the double gear set 16 are rotatably arranged on the machine body 1. The driven gear 17 is slidably arranged on the input rotating shaft 18. The input rotating shaft 18 is rotatably arranged on the machine body 1. The push plate 19 is slidably arranged on the machine body 1. The two ends of the first spring 21 are respectively connected to the push plate 19 and the machine body 1. The push plate 19 contacts the driven gear 17. The first spring 21 is fixedly arranged on the machine body 1. The telescopic shaft of the hydraulic rod 22 is provided with a circular push cylinder 23. The circular push cylinder 23 is inserted into the input rotating shaft 18 and contacts the driven gear 17.

[0033] Specifically, the power shaft 7 drives the first driving gear 13 and the second driving gear 14 to rotate. The first driving gear 13 and the second driving gear 14 respectively drive the double gear set 16 and the intermediate gear 15 to rotate. The output rotation directions of the double gear set 16 and the intermediate gear 15 are opposite. When the telescopic shaft of the hydraulic rod 22 is in the middle position, the driven gear 17 does not mesh with the double gear set 16 and the intermediate gear 15, and the driven gear 17 does not rotate. When the telescopic shaft of the hydraulic rod 22 extends, the circular push cylinder 23 presses, and the driven gear 17 meshes with the double gear set 16, and the driven gear 17 rotates forward. When the telescopic shaft of the hydraulic rod 22 retracts, the first spring 21 pushes the push plate 19 to move towards the hydraulic rod 22. The push plate 19 pushes the driven gear 17 to mesh with the intermediate gear 15, and the driven gear 17 rotates in reverse. The driven gear 17 drives the input rotating shaft 18 and the third synchronous pulley 24 to rotate.

[0034] The lifting device includes two third synchronous pulleys 24. The third synchronous pulleys 24 are fixedly arranged on the input rotating shaft 18. The second synchronous belt 27 simultaneously meshes with the third synchronous pulleys 24 and the fourth synchronous pulley 25. The fourth synchronous pulley 25 is fixedly arranged on the synchronous shaft 26. The synchronous shaft 26 is rotatably arranged on the machine body 1. The second synchronous belt 27 is connected to the translation pressing plate 28. The translation pressing plate 28 is rotatably connected to the lower translation end of the telescopic device 29. The lower rotating end of the telescopic device 29 is rotatably arranged on the machine body 1. The upper rotating end of the telescopic device 29 is rotatably arranged on the lifting plate 30. The upper translation end of the telescopic device 29 is slidably arranged on the lifting plate 30.

[0035] Among them, the telescopic device 29 is composed of connecting plates that are sequentially cross-rotationally connected. The two connecting rods at the lower end of the telescopic device 29 respectively correspond to the lower translation end and the lower rotation end, and the two connecting rods at the upper end of the telescopic device 29 respectively correspond to the upper translation end and the upper rotation end. When the translation end approaches the rotation end, the telescopic device 29 elongates, and when the translation end moves away from the rotation end, the telescopic device 29 shortens.

[0036] Specifically, the synchronous pulley three 24 drives the synchronous belt two 27 to rotate, and the synchronous belt two 27 drives the translation pressing plate 28 to translate, thereby controlling the elongation and shortening of the telescopic device 29.

[0037] A raw material bin 31 and an L-shaped rod 32 are rotatably provided on the lifting plate 30, and a horizontal straight plate 33 is provided on the rotating shaft of the raw material bin 31.

[0038] A flip cover 36 is rotatably provided at the opening of the machine body 1. The two ends of the connecting rod 35 are respectively rotatably connected to the middle of the flip cover 36 and one end of the rotating rod 34. The other end of the rotating rod 34 is rotatably provided on the machine body 1. The L-shaped rod 32 is used to push the rotating rod 34 to rotate. A stop platform 37 is provided on the machine body 1, and the stop platform 37 is used to block the horizontal straight plate 33.

[0039] Specifically, when the telescopic device 29 elongates, it drives the lifting plate 30 to rise. The lifting plate 30 drives the raw material bin 31, the L-shaped rod 32, and the horizontal straight plate 33 to rise. When rising to the top, the L-shaped rod 32 touches the rotating rod 34, causing the rotating rod 34 to rotate. Through the transmission of power by the connecting rod 35, the flip cover 36 rotates and opens. The flip cover 36 and the machine body 1 form an opening. The horizontal straight plate 33 then contacts the stop platform 37. The lifting plate 30 continues to rise. The stop platform 37 causes the horizontal straight plate 33 to rotate, synchronously driving the raw material bin 31 to rotate, and the raw material in the raw material bin 31 is poured into the opening.

[0040] The through-hole device includes an outer wrapping plate 38. The outer wrapping plate 38 is provided on the machine body 1 and is located outside the filter cylinder 12. There are round holes below the outer wrapping plate 38. The round holes of the outer wrapping plate 38 are used for discharging materials, and the discharge holes of the outer wrapping plate 38 are aligned with the feed holes of the material transfer cylinder 11.

[0041] Through-hole row rods 39 are sequentially slidably provided on the outer wrapping plate 38. The number of through-hole row rods 39 is the same as the number of through-hole rows on the filter cylinder 12. The through-hole row rods 39 are used to dredge the round holes of the filter cylinder 12. There are two turntables 40. The turntables 40 are rotatably provided on both sides of the machine body 1. There are multiple arc grooves on the turntables 40. The arc grooves of the turntables 40 form a sliding fit with both ends of the through-hole row rods 39.

[0042] A power rotating rod 41 is rotatably provided on the turntable 40. The two ends of the second spring 42 are respectively connected to the power rotating rod 41 and the turntable 40. A blocking platform 43 is provided on the turntable 40. The blocking platform 43 contacts the power rotating rod 41, and the blocking platform 43 prevents the power rotating rod 41 from rotating clockwise.

[0043] A pull rod 44 is rotatably arranged on the turntable 40. The pull rod 44 passes through the slot hole of the pull rod table 46. Two ends of the third spring 45 are respectively connected to the pull rod 44 and the pull rod table 46.

[0044] Specifically, during the elongation process of the telescopic device 29, the horizontal straight plate 33 is driven to rise. When the horizontal straight plate 33 passes by the power rotating rod 41, it contacts the power rotating rod 41. Since the blocking table 43 prevents the power rotating rod 41 from rotating, the power rotating rod 41 drives the turntable 40 to rotate. The arc groove of the turntable 40 drives the through-hole row rod 39 to slide on the outer wrapping plate 38. The through-hole row rod 39 is inserted into the through holes of the filter cylinder 12 to dredge the filter cylinder 12, facilitating the next pulverization and filtration. When the horizontal straight plate 33 passes by the power rotating rod 41, the third spring 45 provides power to make the turntable 40 rotate in the reverse direction, and the turntable 40 returns to the original state; during the shortening process of the telescopic device 29, the horizontal straight plate 33 descends. When the horizontal straight plate 33 passes by the power rotating rod 41, the horizontal straight plate 33 drives the power rotating rod 41 to rotate, and the second spring 42 is compressed. When the horizontal straight plate 33 passes by the power rotating rod 41, the second spring 42 provides power to make the power rotating rod 41 touch the blocking table 43 again.

[0045] Working principle: When the raw material bin 31 is at a low position, alumina raw materials are put into the raw material bin 31. The motor 2 is started, and at the same time, the telescopic shaft of the hydraulic rod 22 extends. The motor 2 drives the cutting device 3 to rotate. The cutting device 3 drives the first synchronous wheel 4 to rotate. Power is transmitted through the first synchronous belt 6 and the second synchronous wheel 5, making the power shaft 7 rotate. The power shaft 7 drives the first driving gear 13 to rotate. The first driving gear 13 drives the double gear set 16 to rotate. Since the circular push cylinder 23 presses the driven gear 17, and the driven gear 17 meshes with the double gear set 16, the driven gear 17 rotates forward, and the driven gear 17 drives the input rotating shaft 18 and the third synchronous wheel 24 to rotate.

[0046] The third synchronous wheel 24 drives the second synchronous belt 27 to rotate. The second synchronous belt 27 drives the translation pressing plate 28 to translate, making the telescopic device 29 extend, driving the lifting plate 30 to rise. The lifting plate 30 drives the raw material bin 31, the L-shaped rod 32 and the horizontal straight plate 33 to rise. When the horizontal straight plate 33 passes by the power rotating rod 41, it contacts the power rotating rod 41. Since the blocking table 43 prevents the power rotating rod 41 from rotating, the power rotating rod 41 drives the turntable 40 to rotate. The arc groove of the turntable 40 drives the through-hole row rod 39 to slide on the outer wrapping plate 38. The through-hole row rod 39 is inserted into the through holes of the filter cylinder 12 to dredge the filter cylinder 12, facilitating the next pulverization and filtration. When the horizontal straight plate 33 passes by the power rotating rod 41, the third spring 45 provides power to make the turntable 40 rotate in the reverse direction, and the turntable 40 returns to the original state.

[0047] The telescopic device 29 continues to extend. When the lifting plate 30 rises to the top, the L-shaped rod 32 touches the rotating rod 34, causing the rotating rod 34 to rotate. Power is transmitted through the connecting rod 35 to make the flip cover 36 rotate and open. An opening is formed between the flip cover 36 and the body 1. Then the horizontal straight plate 33 contacts the retaining platform 37. The lifting plate 30 continues to rise, and the retaining platform 37 causes the horizontal straight plate 33 to rotate, synchronously driving the raw material bin 31 to rotate, and the raw materials in the raw material bin 31 are poured into the opening.

[0048] The telescopic shaft of the hydraulic rod 22 retracts. The first spring 21 pushes the push plate 19 to move towards the hydraulic rod 22. The push plate 19 pushes the driven gear 17 to mesh with the intermediate gear 15. The driven gear 17 rotates in reverse. By the same principle, the telescopic device 29 shortens. Due to gravity, the raw material bin 31 rotates back to the horizontal state. The horizontal straight plate 33 descends. When the horizontal straight plate 33 passes the power rotating rod 41, the horizontal straight plate 33 drives the power rotating rod 41 to rotate, and the second spring 42 is compressed. When the horizontal straight plate 33 passes the power rotating rod 41, the second spring 42 provides power to make the power rotating rod 41 touch the blocking platform 43 again.

[0049] When the lifting plate 30 descends to the bottom, the telescopic shaft of the hydraulic rod 22 extends to the middle position. The driven gear 17 does not mesh with the double gear set 16 and the intermediate gear 15, and the driven gear 17 does not rotate. The lifting plate 30 stops moving. The motor 2 continues to operate, and the cutting device 3 crushes the alumina raw materials. When the size of the crushed raw materials is smaller than the round holes of the filter cylinder 12, the crushed raw materials fall out through the round holes of the filter cylinder 12 to produce particles of the required size, and enter the material transfer cylinder 11 through the lower round holes of the retaining platform 37; then power is transmitted through the first bevel gear 8 and the second bevel gear 9 to make the screw rod 10 rotate in the material transfer cylinder 11, and the material transfer cylinder 11 transports the crushed raw materials out from the outlet of the material transfer cylinder 11.

[0050] Matters not described in this invention are applicable to the prior art.

Claims

1. An alumina raw material crushing device, characterized in that: The machine body comprises a motor, a rotating shaft of the motor is connected to a cutting device, the cutting device is rotatably arranged on the machine body, a synchronous wheel 1 is arranged at the end of the cutting device, two ends of the synchronous belt 1 are meshed with the synchronous wheel 1 and the synchronous wheel 2, the synchronous wheel 2 is fixedly arranged on the power shaft, the power shaft is rotatably arranged on the machine body, a bevel gear 1 is arranged on the power shaft, the bevel gear 1 is meshed with the bevel gear 2, the bevel gear 2 is fixedly arranged on the rotating shaft of the screw, the screw is rotatably arranged on the material transfer cylinder, the material transfer cylinder is fixedly arranged on the machine body, a filter cylinder is arranged on the machine body, the filter cylinder wraps the cutting device, a reversing device and a lifting device are arranged on the machine body, the reversing device is used to control the lifting of the lifting device, a through-hole device is arranged on the machine body, and the through-hole device clears the circular hole of the filter cylinder; The through-hole device comprises an outer covering plate, which is arranged on the machine body and located outside the filter cylinder. A circular hole is arranged below the outer covering plate, and the circular hole of the outer covering plate is used for discharging materials. The discharge hole of the outer covering plate is aligned with the feed hole of the transfer cylinder. The outer plate is provided with through-hole row rods which are slidably arranged in sequence. The number of through-hole row rods is consistent with the number of through-hole rows on the filter cylinder. The through-hole row rods are used to dredge the circular holes of the filter cylinder. There are two turntables which are rotatably arranged on both sides of the machine body. There are multiple arc grooves on the turntable. The arc grooves of the turntable form a sliding fit with the two ends of the through-hole row rods. A power rotating rod is rotatably arranged on the rotating disk, and two ends of the second spring are respectively connected with the power rotating rod and the rotating disk, and a blocking platform is arranged on the rotating disk, and the blocking platform contacts with the power rotating rod, and the blocking platform prevents the power rotating rod from rotating clockwise; A pull rod is rotatably arranged on the turntable, the pull rod passes through a slot of the pull rod platform, and two ends of the spring three are respectively connected to the pull rod and the pull rod platform; The reversing device comprises a driving gear 1 and a driving gear 2, which are arranged on the power shaft in sequence, the driving gear 1 is meshed with the double gear set, the driving gear 2 is meshed with the intermediate gear, the intermediate gear and the double gear set are rotatably arranged on the machine body, the driven gear is slidably arranged on the input rotating shaft, the input rotating shaft is rotatably arranged on the machine body, the push plate is slidably arranged on the machine body, the two ends of the spring 1 are respectively connected with the push plate and the machine body, the push plate contacts the driven gear, the spring 1 is fixedly arranged on the machine body, the telescopic shaft of the hydraulic rod is provided with a round push cylinder, the round push cylinder is inserted into the input rotating shaft, and the round push cylinder contacts the driven gear; The lifting device includes a synchronous wheel three, there are two synchronous wheels three, the synchronous wheel three is fixed on the input shaft, the synchronous belt two is meshed with the synchronous wheel three and the synchronous wheel four at the same time, the synchronous wheel four is fixed on the synchronous shaft, the synchronous shaft is rotatably arranged on the machine body, the synchronous belt two is connected with the translation pressure plate, the translation pressure plate is rotatably connected with the lower translation end of the telescopic device, the lower rotation end of the telescopic device is rotatably arranged on the machine body, the upper rotation end of the telescopic device is rotatably arranged on the lifting plate, and the upper translation end of the telescopic device is slidably arranged on the lifting plate; A raw material bin and an L-shaped rod are rotatably arranged on the lifting plate, and a horizontal and vertical plate is arranged on the rotating shaft of the raw material bin.

2. The alumina raw material crushing device according to claim 1, characterized in that: A flap is rotatably provided at the opening on the machine body, two ends of the connecting rod are rotatably connected with the middle part of the flap and one end of the rotating rod respectively, the other end of the rotating rod is rotatably provided on the machine body, the L-shaped rod is used to push the rotating rod to rotate, and a stopper is provided on the machine body, which is used to block the horizontal and vertical plates.

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