Pulverizing mill for commercial concrete production

Abstract

The utility model belongs to the technical field of flour mills, and particularly relates to a flour mill for commercial concrete production, which comprises a flour mill box body, a feed port arranged above the flour mill box body, a grinding block (2) rotatably arranged at the upper position in the flour mill box body, and a filter plate arranged below the grinding block and connected with the flour mill box body, an elastic part is connected between the upper portion of one side of the filter plate and the pulverizer box, the other side of the filter plate is hinged to the pulverizer box, a transmission shaft is fixedly connected to the lower side of the grinding block, a rotating shaft rotationally connected with the pulverizer box is arranged below the transmission shaft, and a reversing transmission mechanism is assembled and connected between the rotating shaft and the transmission shaft. The rotating shaft is in transmission connection with a cam mechanism for vibrating the filter plate, a discharge hole is formed in one side of the pulverizer box body hinged to the filter plate, and the pulverizer box body is assembled and connected with a baffle plate of the discharge hole; according to the utility model, the rotation of the grinding block and the rotation of the eccentric wheel are realized through one driving piece, and the design is ingenious.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulverizers, and particularly relates to a pulverizer for commercial concrete production. Background Art

[0002] Pulverizers are widely used in industries such as chemical engineering, mining, iron and steel, thermal power, and coal. Any process of turning large particle materials into small particle materials by external force is called crushing, and the machine used is called a crusher; any process of turning small particle materials into powder materials is called pulverization or grinding, simply called powder grinding. The machine used for this is called a pulverizer. Existing pulverizers usually process materials through grinding blocks.

[0003] For example, a Chinese patent with the patent number CN221085892U discloses a pulverizer for commercial concrete production, which includes a pulverizing device and an installation box. A grinding block is rotatably arranged at an upper position inside the pulverizing device. A filter screen is slidably arranged at a middle position of the pulverizing device. The filter screen is arranged below the grinding block. The lower end of the filter screen is fixedly connected to an installation frame. A driving shaft is rotatably arranged inside the pulverizing device. A plurality of cams are fixedly sleeved on the outer wall of the driving shaft. All the plurality of cams are arranged below the installation frame. A feeding port is fixedly opened on one side of the upper end surface of the pulverizing device. Both the filter screen and the bottom plate of the installation box are inclined. A collection box is arranged on the upper end surface of the bottom plate of the pulverizing device. And a sealing door is rotatably arranged at a lower position near the front end of the pulverizing device. It can effectively prevent the filter screen from being blocked and can improve the powder grinding effect of the device, and has practicability.

[0004] However, in the prior art, by placing the filter plate obliquely, it is easy for the raw materials to directly fall into the installation box, and the raw materials cannot be filtered. Under the action of gravity, the raw materials cannot fall above the filter plate, so that the upper side of the filter plate cannot be utilized. Summary of the Utility Model

[0005] Aiming at the problems raised in the above background art, the purpose of the present utility model is: to provide a pulverizer for commercial concrete production to solve the problems raised in the above background art.

[0006] To achieve the above technical purpose, the technical solution adopted by the present utility model is as follows:

[0007] A pulverizer for the production of commercial concrete, comprising a pulverizer box body, an inlet is arranged above the pulverizer box body, a grinding block is rotatably arranged at an upper position inside the pulverizer box body, a filter plate connected to the pulverizer box body is arranged below the grinding block, an elastic member is connected between the upper side of one side of the filter plate and the pulverizer box body, and the other side is hinged to the pulverizer box body. A transmission shaft is fixedly connected to the lower side of the grinding block, a rotating shaft rotatably connected to the pulverizer box body is arranged below the transmission shaft, a reversing transmission mechanism is assembled and connected between the rotating shaft and the transmission shaft, the rotating shaft is drivingly connected to a cam mechanism for vibrating the filter plate, a discharge port is arranged on one side of the pulverizer box body hinged to the filter plate, and a baffle plate of the discharge port is assembled and connected to the pulverizer box body.

[0008] Preferably, the gap between the grinding block and the pulverizer box body gradually decreases from top to bottom.

[0009] Preferably, an annular plate is fixedly connected to the lower part of the transmission shaft under the grinding block, and a circular retaining ring is arranged directly below the annular plate on the filter plate.

[0010] Preferably, the reversing transmission mechanism includes a first bevel gear drivingly connected to the transmission shaft and a second bevel gear drivingly connected to the rotating shaft, and the first bevel gear and the second bevel gear are meshed and drivingly connected.

[0011] Preferably, the cam mechanism includes an eccentric wheel drivingly connected to the rotating shaft, and the eccentric wheel is located on one side close to the elastic member under the filter plate and is slidably connected to the eccentric wheel.

[0012] Preferably, a guide plate is fixedly connected to the lower side of the filter plate inside the pulverizer box body.

[0013] Preferably, the baffle plate slides in a groove formed in the side wall of the pulverizer box body, a connecting block is fixedly connected to the outer side of the baffle plate, a plug pin is connected to the connecting block, and a positioning block for connecting with the plug pin is fixedly connected to one side of the upper part of the connecting block on the pulverizer box body.

[0014] The utility model has the following advantages compared with the prior art:

[0015] The structure of the utility model is simple. The filter plate is driven by the eccentric wheel to vibrate up and down, thereby improving the screening effect of the filter plate. The elastic member provides a downward acting force on the filter plate. When the proximal end of the eccentric wheel contacts the lower side of the filter plate, one side of the filter plate tilts downward. When the distal end of the eccentric wheel contacts the lower side of the filter plate, the filter plate tilts upward, so as to make full use of the filter plate. At the same time, the material can be discharged after being fully screened, effectively improving the screening rate.

[0016] The utility model realizes the rotation of the grinding block and the rotation of the eccentric wheel through one driving member, and the design is ingenious. Description of the Drawings

[0017] The present utility model can be further illustrated by the non-limiting embodiments given in the attached drawings;

[0018] Figure 1 It is a schematic structural diagram of an embodiment of a pulverizer for commercial concrete production according to the present utility model;

[0019] Figure 2 It is a middle sectional view of a pulverizer for commercial concrete production according to the present utility model;

[0020] Figure 3 It is a schematic structural diagram of a filter plate according to the present utility model;

[0021] Figure 4 It is a schematic structural diagram of a rotating shaft assembly according to the present utility model;

[0022] The main element symbols are explained as follows:

[0023] Pulverizer box body 1, feeding port 11, guiding plate 12;

[0024] Grinding block 2, rotating shaft 21, annular plate 22;

[0025] Filter plate 3, circular retaining ring 31;

[0026] Elastic member 4, rotating shaft 5;

[0027] Reversing transmission mechanism 6, first bevel gear 61, second bevel gear 62;

[0028] Cam mechanism 7, eccentric wheel 71;

[0029] Baffle 8, connecting block 81, plug pin 82, positioning block 83. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the present utility model, the technical solution of the present utility model will be further described below in conjunction with the attached drawings and embodiments.

[0031] As Figures 1-4As shown in the figure, a pulverizer for commercial concrete production includes a pulverizer box body 1. There is a feeding port 11 above the pulverizer box body 1. A grinding block 2 is rotatably arranged at an upper position inside the pulverizer box body 1. Below the grinding block 2, there is a filter plate 3 connected to the pulverizer box body 1. An elastic member 4 is connected between one side above the filter plate 3 and the pulverizer box body 1, and the other side is hinged to the pulverizer box body 1. A transmission shaft 21 is fixedly connected to the lower side of the grinding block 2. Below the transmission shaft 21, there is a rotating shaft 5 rotatably connected to the pulverizer box body 1. A reversing transmission mechanism 6 is assembled and connected between the rotating shaft 5 and the transmission shaft 21. The rotating shaft 5 is drivingly connected to a cam mechanism 7 for vibrating the filter plate 3. On one side of the pulverizer box body 1 hinged to the filter plate 3, there is a discharge port. The pulverizer box body 1 is assembled and connected with a baffle 8 at the discharge port.

[0032] Adopting the technical solution of this embodiment, the material enters the pulverizer box body 1 from the feeding port 11. The module 2 rotates to grind the material into powder. The ground material falls above the filter plate 3 and is screened. The material with a particle size smaller than the filter plate 3 is screened to below the filter plate 3. The side connected to the filter plate 3 through the elastic member 4 vibrates up and down under the action of the cam mechanism 7 to screen the material. When the material screening is not completed, the baffle 8 blocks the discharge port, and the material cannot be discharged from the discharge port; during operation, the material enters the pulverizer box body 1 from the feeding port, and then the grinding block 2 grinds the material. The ground material falls above the filter plate 3. The cam mechanism 7 drives the filter plate 3 to vibrate, so that the filter plate 3 screens the material. During the screening process, the material with a particle size larger than the filter plate 3 remains above the filter plate 3. After stopping the feeding, opening the baffle 8 can discharge the material.

[0033] Refer to Figure 2 : The gap between the grinding block 2 and the pulverizer box body 1 gradually decreases from top to bottom.

[0034] In this embodiment, the gap between the grinding block 2 and the pulverizer box body 1 gradually decreases, which is beneficial for the material to enter the gap of the grinding block 2. When the material is ground fine enough, the material is discharged from the gap between the grinding block 2 and the lower part of the pulverizer box body 1.

[0035] Refer to Figure 3 : A circular plate 22 is fixedly connected to the lower part of the grinding block 2 on the transmission shaft 21. A circular retaining ring 31 is arranged directly below the circular plate 22 on the filter plate 3.

[0036] In this embodiment, the circular plate 22 is used to prevent the material falling from above from directly falling into the relief hole of the rotating shaft 5 in the middle of the filter plate 3. The circular retaining ring 31 is used to prevent the material from falling into the hole in the middle of the filter plate 3 when the filter plate 3 is tilted.

[0037] Refer to Figure 2: The reversing drive mechanism 6 includes a first bevel gear 61 drivingly connected to the drive shaft 21 and a second bevel gear 62 drivingly connected to the rotating shaft. The first bevel gear 61 and the second bevel gear 62 are meshed and drivingly connected. In this embodiment, the cooperation between the first bevel gear 61 and the second bevel gear 62 is used to convert the vertical rotation of the drive shaft 21 into the horizontal rotation of the rotating shaft 5, so as to enable the rotating shaft 5 to drive the cam 7 to rotate.

[0038] Refer to Figure 2 and 4 : The cam mechanism 7 includes an eccentric wheel 71 drivingly connected to the rotating shaft 5. The eccentric wheel 71 is located on the lower side of the filter plate 3 close to the elastic member 4 and is slidably connected to the eccentric wheel 71. In this embodiment, when the eccentric wheel 71 rotates, it generates a vertical force on one side of the filter plate 3, thereby vibrating the filter plate 3.

[0039] Refer to Figures 1-2 : A material guide plate 12 is fixedly connected to the inner side of the grinding mill box body 1 below the filter plate 3. In this embodiment, the material guide plate 12 is used to discharge the filtered material out of the grinding mill box body, facilitating the centralized collection of the material.

[0040] Refer to Figure 1 : The baffle 8 slides in a groove formed in the side wall of the grinding mill box body 1. A connecting block 81 is fixedly connected to the outer side of the baffle 8. The connecting block 81 is connected with a bolt 82. A positioning block 83 for connecting with the bolt 82 is fixedly connected to the upper side of the connecting block 81 on one side of the grinding mill box body 1. In this embodiment, when the feeding stops and the material screening above the filter plate 3 is completed, the baffle 8 is moved upward. When the bolt 82 is connected to both the connecting block 81 and the positioning block 83 simultaneously, the baffle 8 moves above the feeding port, and the material can be discharged from the discharging port.

[0041] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in this field. And the present utility model mainly aims to protect mechanical devices, so the control mode and circuit connection of the present utility model will not be explained in detail.

[0042] The above embodiments are only used to exemplarily illustrate the principle and its effects of the present utility model, rather than to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A grinding mill for commercial concrete production, comprising a grinding mill housing (1), characterized in that: A material inlet (11) is provided above the grinding mill housing (1); a grinding block (2) is rotatably arranged at an upper position in the grinding mill housing (1); a filter plate (3) connected to the grinding mill housing (1) is provided below the grinding block (2); an elastic member (4) is connected between the upper side of one side of the filter plate (3) and the grinding mill housing (1); and the other side is hinged to the grinding mill housing (1); a transmission shaft (21) is fixedly connected to the lower side of the grinding block (2); a rotating shaft (5) rotatably connected to the grinding mill housing (1) is provided below the transmission shaft (21); a reversing transmission mechanism (6) is assembled and connected between the rotating shaft (5) and the transmission shaft (21); a cam mechanism (7) for vibrating the filter plate (3) is transmission-connected to the rotating shaft (5); a material outlet is provided on one side of the grinding mill housing (1) hinged to the filter plate (3); and a baffle (8) connected to the material outlet is assembled to the grinding mill housing (1).

2. A pulverizer for commercial concrete production according to claim 1, characterized in that: The gap between the grinding block (2) and the grinding machine housing (1) gradually decreases from top to bottom.

3. A pulverizer for commercial concrete production according to claim 1, characterized in that: The transmission shaft (21) is fixedly connected to an annular plate (22) below the grinding block (2), and the filter plate (3) is provided with a circular retaining ring (31) directly below the annular plate (22).

4. A pulverizer for commercial concrete production according to claim 1, characterized in that: The reversing transmission mechanism (6) comprises a first bevel gear (61) transmission-connected to the transmission shaft (21) and a second bevel gear (62) transmission-connected to the rotating shaft; the first bevel gear (61) and the second bevel gear (62) are meshingly transmission-connected.

5. The pulverizer for commercial concrete production according to claim 1, characterized in that: The cam mechanism (7) comprises an eccentric wheel (71) which is transmission-connected to the rotating shaft (5); the eccentric wheel (71) is located on a side of the lower side of the filter plate (3) close to the elastic member (4) and is slidably connected to the eccentric wheel (71).

6. A pulverizer for commercial concrete production according to claim 1, characterized in that: A material guide plate (12) is fixedly connected to the lower side of the filter plate (3) in the grinding machine housing (1).

7. A pulverizer for commercial concrete production according to claim 1, characterized in that: The baffle (8) slides in a groove provided in a side wall of the grinding mill housing (1); a connecting block (81) is fixedly connected to the outer side of the baffle (8); a latch (82) is connected to the connecting block (81); and a positioning block (83) for connecting to the latch (82) is fixedly connected to one side of an upper portion of the connecting block (81) of the grinding mill housing (1).

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