Raw material grinding device

Abstract

The utility model discloses a raw material grinding device which comprises a shell, a motor is fixedly installed at the top of the shell, the driving end of the motor is fixedly connected with a main shaft, and the main shaft penetrates through the top of the shell, extends into the shell and is rotationally connected with the shell; a smashing assembly, a filter screen, a cam driving assembly, a discharging disc and a millstone grinding assembly are sequentially installed on the outer surface of the main shaft from top to bottom. And the filter screen slides with the main shaft and the shell in a sealing manner. According to the utility model, through the arrangement of the motor, the main shaft, the crushing assembly, the filter screen and the blanking disc, cooked caking raw materials can be crushed before grinding and then conveyed into the millstone grinding assembly, so that the raw materials can enter a gap between an upper millstone and a lower millstone, and the phenomenon of feeding blockage is avoided; and a spring, a fixing block and a cam driving assembly are arranged, so that the filter screen can be assisted to vibrate up and down, and the discharging effect of the filter screen is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a raw material grinding device. Background Art

[0002] Cement is a common building material used in construction projects. The raw materials of cement mainly include limestone, clay, iron ore powder, etc. These raw materials are finely crushed and mixed with limestone, clay and iron ore powder in a certain proportion. This raw material mixture is called raw material powder, which is then fired at a high temperature of 1450 degrees to form cement clinker. The clinker and mortar are then ground together and mixed in a certain proportion to form cement.

[0003] Currently, after the cement raw materials are cooked, they need to be ground using a grinding device.

[0004] The prior art publication number CN215901861U is a grinding device for producing cement clinker raw material using mine crack soil, which includes a supporting mechanism and a grinding mechanism. The supporting mechanism includes a base, and hydraulic cylinders are fixedly connected to the four corners of the top of the base. A supporting plate is arranged above the four hydraulic cylinders, and a rectangular plate is arranged above the supporting plate. The grinding mechanism includes a sieve plate, which is embedded in the inner side of the rectangular plate, and a conical bucket is detachably fixedly connected to the bottom of the sieve plate, a lower grinding plate is fixedly connected to the center position of the top of the sieve plate, and an upper grinding plate is arranged above the lower grinding plate.

[0005] The device utilizes the synergistic effect of the upper grinding plate and the lower grinding plate to grind the mine crack soil, and utilizes the action of the hydraulic cylinder to drive the rectangular plate to move up and down, thereby allowing the grinding mechanism and the feed pipe to move up and down, solving the problems of complex structure and low installation efficiency of the existing grinding device for using mine crack soil as cement clinker raw material production.

[0006] However, in actual use, since cement raw materials tend to agglomerate after being burned and are of different sizes, after the agglomerated raw materials are fed into the annular groove of the upper grinding plate through a feed pipe, large pieces of raw materials cannot enter the gap between the upper grinding plate and the lower grinding plate, causing more and more raw materials to accumulate in the annular groove, resulting in feed blockage, idling of the device, and increased wear. Therefore, a raw material grinding device is proposed. Utility Model Content

[0007] The utility model is a raw material grinding device proposed to solve the shortcomings in the prior art.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a raw material grinding device comprises a shell, a motor is fixedly installed on the top of the shell, a driving end of the motor is fixedly connected to a main shaft, and the main shaft passes through the top of the shell and extends to the inside and is rotatably connected thereto; a crushing assembly, a filter screen, a cam driving assembly, a discharge disc and a grinding disc grinding assembly are installed on the outer surface of the main shaft in sequence from top to bottom; the filter screen is sealed and slidable with the main shaft and the shell, the filter screen is connected to the cam driving assembly, a plurality of springs are fixedly connected to the bottom of the filter screen, a plurality of springs are fixedly connected to the bottom of each of the springs, and the fixed blocks are fixedly connected to the shell; a fixing rod is fixedly installed on one side of the inner wall of the shell, the other end of the fixing rod is connected to the cam driving assembly, a scraper is fixedly connected to the bottom of the fixing rod, and the scraper is in contact with the discharge disc; the discharge port of the discharge disc is fixedly connected to the loading port of the grinding disc grinding assembly.

[0009] Furthermore, the crushing assembly includes a plurality of crushing knives, and the crushing knives are evenly and fixedly installed on the outer surface of the main shaft, so as to crush the agglomerated raw materials.

[0010] Furthermore, the cam driving assembly includes a shell, and the shell is rotatably connected to the main shaft and fixedly connected to the fixed rod. The outer surface of the main shaft is fixedly sleeved with an active bevel gear, and the outer surface of the active bevel gear is meshingly connected with a driven bevel gear. One end of the driven bevel gear is fixedly connected to a connecting shaft, and the connecting shaft passes through the shell and is rotatably connected thereto. The other end of the connecting shaft is fixedly connected to a cam, and the cam abuts against the filter screen, which can drive the cam to rotate, and the filter screen is always in contact with the cam under the action of the spring, so that the filter screen can be driven to vibrate up and down.

[0011] Furthermore, the lower material tray includes a material tray, and the material tray is fixedly sleeved on the outer surface of the main shaft and fits with the inner wall of the shell, the material tray fits with the scraper, and a lower hopper is fixedly installed on the bottom of the material tray, and an annular oblique block is fixedly connected to the inner wall of the shell, and the annular oblique block fits with the material tray and the scraper. The arrangement of the scraper and the annular oblique block facilitates scraping the material falling on the material tray into the lower hopper.

[0012] Furthermore, the grinding wheel grinding assembly includes an upper grinding wheel, and the upper feeding port of the upper grinding wheel is fixedly connected to the lower feeding hopper, the upper grinding wheel is fixedly connected to the main shaft, the bottom of the upper grinding wheel is matched with a lower grinding wheel, the bottom of the lower grinding wheel is fixedly connected to a cross, and the cross is fixedly connected to the shell, and the grinding wheel grinding assembly adopts the existing grinding wheel grinding technology, and the specific models and specifications of the upper grinding wheel and the lower grinding wheel can be selected according to actual needs.

[0013] Furthermore, a support ring is rotatably connected to the outer surface of the upper grinding disc, and the support ring is fixedly connected to the shell. The support ring has a supporting effect on the upper grinding disc, which is beneficial to the installation of the upper grinding disc.

[0014] Furthermore, a feeding pipe is fixedly passed through the top of the shell, and the feeding pipe can be connected to an external feeding device, which is beneficial to the feeding operation.

[0015] Beneficial effects of the utility model:

[0016] When the utility model is in use, the raw material grinding device can crush the cooked and agglomerated raw materials before grinding through the arranged motor, main shaft, crushing assembly, filter screen and feeding disc, and then convey the raw materials to the grinding disc grinding assembly to ensure that the raw materials can enter the gap between the upper and lower grinding discs to avoid the feeding blockage phenomenon, and then the arranged spring, fixed block and cam driving assembly can assist the filter screen to vibrate up and down to ensure the feeding effect of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 : A three-dimensional diagram of the utility model;

[0019] Figure 2 : A cross-sectional view of the utility model;

[0020] Figure 3 : A schematic diagram of the local structure of the utility model;

[0021] Figure 4 :The utility model Figure 3 Enlarged view of point A in the middle.

[0022] The reference numerals are as follows:

[0023] 1. Shell; 2. Feeding pipe; 3. Motor; 4. Feeding tray; 5. Annular bevel block; 6. Lower hopper; 7. Support ring; 8. Cross; 9. Spindle; 10. Crushing knife; 11. Filter screen; 12. Scraper; 13. Upper grinding disc; 14. Lower grinding disc; 15. Spring; 16. Fixed rod; 17. Fixed block; 18. Active bevel gear; 19. Cam; 20. Connecting shaft; 21. Driven bevel gear; 22. Shell. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 4 As shown, it relates to a raw material grinding device, including a shell 1, a motor 3 is fixedly installed on the top of the shell 1, a main shaft 9 is fixedly connected to the driving end of the motor 3, and the main shaft 9 extends through the top of the shell 1 to the inside and is rotatably connected thereto, and a crushing assembly, a filter screen 11, a cam drive assembly, a feed plate and a grinding disc grinding assembly are installed on the outer surface of the main shaft 9 in sequence from top to bottom.

[0026] The crushing assembly includes a plurality of crushing knives 10 , and the crushing knives 10 are evenly and fixedly mounted on the outer surface of the main shaft 9 . The motor 3 can drive the main shaft 9 to rotate, and the main shaft 9 can drive the crushing knives 10 to rotate.

[0027] The filter screen 11 is sealed and slidable with the main shaft 9 and the housing 1, and the filter screen 11 is connected to the cam drive assembly. The bottom of the filter screen 11 is fixedly connected with a plurality of springs 15, and the bottoms of the plurality of springs 15 are fixedly connected with a fixed block 17, and the fixed block 17 is fixedly connected with the housing 1. The cam drive assembly includes a housing 22, and the housing 22 is rotatably connected with the main shaft 9 and is fixedly connected with the fixed rod 16. The outer surface of the main shaft 9 is fixedly sleeved with an active bevel gear 18, and the outer surface of the active bevel gear 18 is meshed with a driven bevel gear 21, one end of the driven bevel gear 21 is fixedly connected to the connecting shaft 20, and the connecting shaft 20 passes through the housing 22 and is rotatably connected thereto, the other end of the connecting shaft 20 is fixedly connected to the cam 19, and the cam 19 abuts against the filter 11, the main shaft 9 drives the active bevel gear 18 to rotate, the active bevel gear 18 can drive the connecting shaft 20 to rotate through the driven bevel gear 21, the connecting shaft 20 can drive the cam 19 to rotate, and the filter 11 is always in contact with the cam 19 under the action of the spring 15, which can drive the filter 11 to vibrate up and down.

[0028] A fixing rod 16 is fixedly installed on one side of the inner wall of the shell 1, and the other end of the fixing rod 16 is connected to the cam driving assembly. A scraper 12 is fixedly connected to the bottom of the fixing rod 16, and the scraper 12 is fitted with the lower material tray. The lower material tray includes a material tray 4, and the material tray 4 is fixedly sleeved on the outer surface of the main shaft 9 and fits with the inner wall of the shell 1. The material tray 4 fits with the scraper 12. A lower hopper 6 is fixedly installed on the bottom of the material tray 4, and an annular oblique block 5 is fixedly connected to the inner wall of the shell 1, and the annular oblique block 5 fits with the material tray 4 and the scraper 12. The main shaft 9 can drive the material tray 4 to rotate, and the material tray 4 can drive the raw material dropped on the top thereof to move. When the raw material contacts the scraper 12, it is blocked, allowing the raw material to fall through the lower hopper 6.

[0029] The lower material port of the lower material plate is fixedly connected to the upper material port of the grinding disc assembly, the grinding disc grinding assembly includes an upper grinding disc 13, and the upper material port of the upper grinding disc 13 is fixedly connected to the lower material hopper 6, the upper grinding disc 13 is fixedly connected to the main shaft 9, the bottom of the upper grinding disc 13 is matched with the lower grinding disc 14, the bottom of the lower grinding disc 14 is fixedly connected with a cross 8, and the cross 8 is fixedly connected to the shell 1, the outer surface of the upper grinding disc 13 is rotatably connected to the support ring 7, and the support ring 7 is fixedly connected to the shell 1, the grinding disc grinding assembly adopts the existing grinding disc grinding technology, wherein the specific models and specifications of the upper grinding disc 13 and the lower grinding disc 14 can be selected according to actual needs, when the main shaft 9 drives the upper grinding disc 13 to rotate, the material enters the gap between the upper grinding disc 13 and the lower grinding disc 14 and is ground, and then discharged.

[0030] A feeding pipe 2 is fixedly passed through the top of the shell 1, and the feeding pipe 2 can be connected to an external feeding device to facilitate the feeding operation.

[0031] Working principle: start the motor 3, the motor 3 drives the main shaft 9 to rotate, the main shaft 9 drives multiple crushing knives 10, the material tray 4, the active bevel gear 18 and the upper grinding disc 13 to rotate, the active bevel gear 18 drives the connecting shaft 20 to rotate through the driven bevel gear 21, the connecting shaft 20 drives the cam 19 to rotate, and the filter screen 11 is always in contact with the cam 19 under the action of the spring 15, so that the filter screen 11 vibrates up and down; when the raw material is transported to the shell 1, it is first crushed by the rotating crushing knife 10, and the qualified raw material falls on the top of the material tray 4 through the vibrating filter screen 11, and then enters the gap between the upper grinding disc 13 and the lower grinding disc 14 through the lower hopper 6, and then is ground, and the ground raw material is discharged through the discharge port at the bottom of the shell 1.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A raw material grinding device, comprising a housing (1), characterized in that: A motor (3) is fixedly mounted on the top of the housing (1), a driving end of the motor (3) is fixedly connected to a main shaft (9), and the main shaft (9) passes through the top of the housing (1), extends to the inside and is rotatably connected thereto; The outer surface of the main shaft (9) is provided with a crushing assembly, a filter screen (11), a cam driving assembly, a feed plate and a grinding plate grinding assembly in sequence from top to bottom; The filter screen (11) is sealed and slidable with the main shaft (9) and the housing (1); the filter screen (11) is connected to a cam drive assembly; a plurality of springs (15) are fixedly connected to the bottom of the filter screen (11); a fixing block (17) is fixedly connected to the bottom of each of the plurality of springs (15); and the fixing block (17) is fixedly connected to the housing (1); A fixing rod (16) is fixedly mounted on one side of the inner wall of the housing (1), the other end of the fixing rod (16) is connected to a cam driving assembly, a scraper (12) is fixedly connected to the bottom of the fixing rod (16), and the scraper (12) is in contact with the unloading tray; The unloading opening of the unloading plate is fixedly connected to the loading opening of the grinding disc grinding assembly.

2. A raw material grinding device according to claim 1, characterized in that: The pulverizing assembly comprises a plurality of pulverizing knives (10), and the pulverizing knives (10) are evenly and fixedly mounted on the outer surface of the main shaft (9).

3. A raw material grinding device according to claim 1, characterized in that: The cam driving assembly comprises a housing (22), and the housing (22) is rotatably connected to the main shaft (9) and fixedly connected to the fixed rod (16); an active bevel gear (18) is fixedly sleeved on the outer surface of the main shaft (9); a driven bevel gear (21) is meshingly connected to the outer surface of the active bevel gear (18); one end of the driven bevel gear (21) is fixedly connected to a connecting shaft (20), and the connecting shaft (20) passes through the housing (22) and is rotatably connected thereto; the other end of the connecting shaft (20) is fixedly connected to a cam (19), and the cam (19) abuts against the filter screen (11).

4. A raw material grinding device according to claim 1, characterized in that: The lower material tray comprises a material tray (4), and the material tray (4) is fixedly sleeved on the outer surface of the main shaft (9) and fits with the inner wall of the shell (1), the material tray (4) fits with the scraper (12), a lower hopper (6) is fixedly installed at the bottom of the material tray (4), and an annular oblique block (5) is fixedly connected to the inner wall of the shell (1), and the annular oblique block (5) fits with the material tray (4) and the scraper (12).

5. A raw material grinding device according to claim 4, characterized in that: The grinding disc grinding assembly comprises an upper grinding disc (13), and the upper material port of the upper grinding disc (13) is fixedly connected to the lower material hopper (6), the upper grinding disc (13) is fixedly connected to the main shaft (9), the bottom of the upper grinding disc (13) is matched with a lower grinding disc (14), the bottom of the lower grinding disc (14) is fixedly connected to a cross (8), and the cross (8) is fixedly connected to the shell (1).

6. A raw material grinding device according to claim 5, characterized in that: The outer surface of the upper grinding disc (13) is rotatably connected to a support ring (7), and the support ring (7) is fixedly connected to the housing (1).

7. A raw material grinding device according to claim 1, characterized in that: A feeding pipe (2) is fixedly passed through the top of the shell (1).

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