A pellet mill base

Abstract

This utility model discloses a pellet mill base, including a base, a pellet mill housing on the top of the base, a bottom plate, and a column on one side of the top of the bottom plate. The side wall of the column has a main shaft bearing mounting hole, and a secondary shaft bearing seat mounting plate is provided on one side of the top of the column. The top of the secondary shaft bearing seat mounting plate has multiple evenly spaced fixing holes, and the secondary shaft bearing seat mounting plate is parallel to the base. This utility model can meet the requirements of bearing seat installation and impact load on the positioning reference strength, which is beneficial to the stable and reliable operation of the pellet mill.

Description

Technical Field

[0001] This utility model relates to the field of granulator technology, specifically to a granulator base. Background Technology

[0002] A pellet mill mainly consists of a feeding, mixing, pelleting, transmission, and lubrication system, and is widely used in the pharmaceutical, chemical, and food industries. Pellet mills can be divided into feed pellet mills and biomass energy pellet mills.

[0003] In current belt-driven pellet mills, the main motor's power is transmitted to the large pulley of the hollow main shaft via a belt. However, larger pellet mills on the market currently require a two-stage transmission. The first stage involves the motor transmitting power to the intermediate shaft via a belt, and the intermediate shaft then transmits power to the hollow main shaft of the pellet mill via a V-belt or synchronous belt. The intermediate shaft bearing housing is fixed to the outside of the pellet mill casing. Since the casing is a thin-walled welded component, this negatively impacts the casing's strength, the installation accuracy of the intermediate shaft bearing housing, and stable operation. Therefore, there is room for improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a pellet mill base to solve the problems mentioned in the background art.

[0005] A pellet mill base includes a base, a pellet mill housing is provided on the top of the base, the base includes a bottom plate, a column is provided on the top of one side of the bottom plate, a main shaft bearing mounting hole is provided on the side wall of the column, an intermediate shaft bearing seat mounting plate is provided on one side of the top of the column, and a plurality of equally spaced fixing holes are provided on the top of the intermediate shaft bearing seat mounting plate, the intermediate shaft bearing seat mounting plate is arranged parallel to the base.

[0006] By adopting the above technical solution, an intermediate shaft bearing housing mounting plate is added to the top of the machine base for the installation of the intermediate shaft bearing support box. The intermediate drive shaft is installed on the drive shaft support box through the bearing housing. This allows the installation positioning reference surfaces of the main shaft bearing housing and the intermediate drive shaft bearing housing to easily ensure their mutual form and position tolerances (parallelism) requirements during machining. The intermediate shaft bearing housing mounting plate is integrally cast with the main body of the machine base, which can meet the requirements of the bearing housing installation and the strength of the positioning reference under impact load, which is conducive to the stable and reliable operation of the pellet mill.

[0007] The present invention is further configured such that a plurality of mounting plates are provided on the outer walls of the base plate at equal intervals, and a plurality of first mounting holes are provided on the surface of the mounting plates.

[0008] By adopting the above technical solution, the mounting plate can be easily connected to the pellet mill casing through the first mounting hole, thus improving the strength of the connection.

[0009] The present invention is further configured such that positioning grooves are provided at the four corners of the top of the base plate, and a second mounting hole is provided on the inner wall of the bottom of the positioning groove, and a bolt is inserted into the inner wall of the second mounting hole.

[0010] By adopting the above technical solution, the setting of the second mounting hole allows for convenient installation and fixing of the base plate using bolts, thus improving the ease of installation.

[0011] The present invention is further provided with a copper sleeve on the inner wall of the main shaft bearing mounting hole, and the cross-section of the copper sleeve is circular.

[0012] By adopting the above technical solution, the copper bushing can reduce the coefficient of friction by forming a lubricating film, reduce direct contact between the shaft and the bearing, and thus significantly reduce wear.

[0013] The present invention is further configured such that the copper sleeve is made of high-strength brass.

[0014] By adopting the above technical solutions, the hardness and strength of high-strength brass can share part of the load, reducing the risk of bearing deformation and damage.

[0015] The present invention is further provided that the base is cast from cast iron.

[0016] By adopting the above technical solution, the base made of cast iron has greater strength, which avoids damage caused by excessive impact force and is conducive to the stable and reliable operation of the pellet mill.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: An intermediate shaft bearing seat mounting plate is added to the top of the machine base for the installation of the intermediate shaft bearing support box. The intermediate transmission shaft is installed on the transmission shaft support box through the bearing seat. This makes it easier to ensure the dimensional and positional tolerances (parallelism) requirements between the main shaft bearing seat and the intermediate transmission shaft bearing seat during machining. The intermediate shaft bearing seat mounting plate is integrally cast with the main body of the machine base, which can meet the requirements of the bearing seat installation and the strength of the positioning reference under impact load, which is conducive to the stable and reliable operation of the pellet mill. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram highlighting the base of this utility model; Figure 3 This is a side view of the base structure of this utility model.

[0019] In the diagram: 1. Base; 2. Granulator housing; 3. Main shaft bearing mounting hole; 4. Mounting plate; 5. First mounting hole; 6. Second mounting hole; 7. Positioning groove; 8. Copper sleeve; 9. Base plate; 10. Column; 11. Intermediate shaft bearing seat mounting plate; 12. Fixing hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a pellet mill base, including a base 1, a pellet mill housing 2 is provided on the top of the base 1, the base 1 includes a bottom plate 9, a column 10 is provided on the top of one side of the bottom plate 9, a main shaft bearing mounting hole 3 is provided on the side wall of the column 10, an intermediate shaft bearing seat mounting plate 11 is provided on one side of the top of the column 10, a plurality of equally spaced fixing holes 12 are provided on the top of the intermediate shaft bearing seat mounting plate 11, and the intermediate shaft bearing seat mounting plate 11 is arranged parallel to the base 1.

[0022] In this embodiment, the outer walls of the base plate 9 are provided with a plurality of equally spaced mounting plates 4. The surface of the mounting plates 4 is provided with a plurality of first mounting holes 5. The base plate 9 can be easily connected to the pellet mill housing 2 through the first mounting holes 5 via the mounting plates 4, thereby improving the firmness of the connection.

[0023] Furthermore, positioning grooves 7 are provided at the four corners of the top of the base plate 9, and second mounting holes 6 are provided on the inner wall of the bottom of the positioning grooves 7. Bolts are inserted into the inner wall of the second mounting holes 6. The base plate 9 can be easily installed and fixed by bolts through the second mounting holes 6, which improves the ease of installation.

[0024] A copper sleeve 8 is provided on the inner wall of the spindle bearing mounting hole 3. The cross-section of the copper sleeve 8 is circular. The copper sleeve 8 can reduce the coefficient of friction by forming a lubricating film, reduce the direct contact between the shaft and the bearing, and thus significantly reduce wear. The copper sleeve 8 is made of high-strength brass. The hardness and strength of high-strength brass can share part of the load, reducing the risk of bearing deformation and damage.

[0025] It is worth mentioning that the base 1 is made of cast iron. The cast iron base 1 has great strength, which avoids damage caused by excessive impact force and is conducive to the stable and reliable operation of the pellet mill.

[0026] Working principle: An intermediate shaft bearing housing mounting plate 11 is added to the top of the machine base for the installation of the intermediate shaft bearing support box. The intermediate drive shaft is installed on the drive shaft support box through the bearing housing. This allows the installation positioning reference surfaces of the main shaft bearing housing and the intermediate drive shaft bearing housing to easily ensure the form and position tolerance (parallelism) requirements between them during machining. The intermediate shaft bearing housing mounting plate 11 is integrally cast with the main body of the machine base, which can meet the requirements of the bearing housing installation and the strength of the positioning reference under impact load, which is conducive to the stable and reliable operation of the pellet mill.

Claims

1. A pellet mill base, comprising a base (1), wherein a pellet mill housing (2) is disposed on the top of the base (1), characterized in that, The base (1) includes a base plate (9), and a column (10) is provided on the top of one side of the base plate (9). The side wall of the column (10) is provided with a main shaft bearing mounting hole (3). An intermediate shaft bearing seat mounting plate (11) is provided on one side of the top of the column (10). The top of the intermediate shaft bearing seat mounting plate (11) is provided with a plurality of equally spaced fixing holes (12). The intermediate shaft bearing seat mounting plate (11) is arranged parallel to the base (1).

2. The pellet mill base according to claim 1, characterized in that, The base plate (9) has multiple equally spaced mounting plates (4) on its outer walls, and the surface of the mounting plates (4) has multiple first mounting holes (5).

3. A pellet mill base according to claim 2, characterized in that, The base plate (9) has positioning grooves (7) at the top four corners, and the bottom inner wall of the positioning groove (7) has a second mounting hole (6), and a bolt is inserted into the inner wall of the second mounting hole (6).

4. The pellet mill base according to claim 1, characterized in that, The inner wall of the main shaft bearing mounting hole (3) is provided with a copper sleeve (8), and the cross-section of the copper sleeve (8) is circular.

5. A pellet mill base according to claim 4, characterized in that, The copper sleeve (8) is made of high-strength brass.

6. A pellet mill base according to any one of claims 1-5, characterized in that, The base (1) is made of cast iron.

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