Universal ball type spring cushioned hot pelletizer

Abstract

The application relates to the field of hot pellet cutters, and provides a universal ball type spring buffering hot pellet cutter which comprises a stock bin shell, a driving motor, a rotating shaft, a connecting shaft, a cutter and a buffering spring; the driving motor is installed on the stock bin shell, the rotating shaft is connected to an output shaft of the driving part; the connecting shaft is fixedly connected to the stock bin shell and coaxially arranged with the rotating shaft; an end of the connecting shaft is provided with a universal ball, the cutter is connected with the connecting shaft in a universal mode through the universal ball; the buffering spring is sleeved outside the rotating shaft; a first connecting table is arranged on the periphery of the rotating shaft; one end of the buffering spring is connected to the first connecting table, and the other end is connected to the cutter. The application has the effect of improving the problems of mechanical bearing jamming and high material accumulation rate in the granulation process.

Description

Technical Field

[0001] This application relates to the field of hot pelletizing machines, and more particularly to a universal ball spring buffer hot pelletizing machine. Background Technology

[0002] In traditional hot pelletizers, the cutter is directly fixed to the rotating shaft via mechanical bearings. This method of fixing relies primarily on rigid rotation to complete the pelletizing operation, and is a relatively common and traditional technique.

[0003] However, on the one hand, during the granulation process, the molten high-temperature material is prone to intruding into the mechanical bearings, causing them to jam and thus affecting the life of the pelletizer; on the other hand, the eccentricity of the cutter will cause vibration, which will lead to a high material accumulation rate and affect production efficiency. Utility Model Content

[0004] To improve the problems of mechanical bearing jamming and high material accumulation rate during the pelleting process, this application provides a universal ball spring buffer hot pelletizer.

[0005] The universal ball spring buffer type hot pelletizer provided in this application adopts the following technical solution: A universal ball spring-cushioned hot pelletizer includes a hopper shell, a drive motor, a rotating shaft, a connecting shaft, a cutter, and a cushioning spring. The drive motor is mounted on the hopper shell, and the rotating shaft is connected to the output shaft of the drive motor. The connecting shaft is fixedly connected to the hopper shell and coaxially arranged with the rotating shaft. A universal ball is provided at the end of the connecting shaft, and the cutter is universally connected to the connecting shaft through the universal ball. The cushioning spring is sleeved outside the rotating shaft. A first connecting platform is provided on the periphery of the rotating shaft. One end of the cushioning spring is connected to the first connecting platform, and the other end is connected to the cutter.

[0006] By adopting the above technical solution, the cutter assembly is connected to the rotating shaft through a universal ball joint structure. The universal ball head can rotate freely to avoid material intrusion and prevent jamming caused by material intrusion. The high-elasticity spring arranged circumferentially around the universal ball joint structure is fixed at one end to the support base and at the other end to the cutter assembly. The spring can buffer radial vibration, reduce eccentric force, and automatically compensate for the positional deviation between the cutter and the extrusion strip.

[0007] Optionally, the first connecting platform is arranged circumferentially around the rotation axis.

[0008] By adopting the above technical solution, a large connection area is ensured between the buffer spring and the first connecting platform, thereby ensuring the connection strength between the buffer spring and the first connecting platform.

[0009] Optionally, the first connecting platform is detachably connected to the rotating shaft.

[0010] By adopting the above technical solution, it is convenient to repair, replace and adjust the connecting table or rotating shaft.

[0011] Optionally, the inner wall of the first connecting platform is provided with an internal thread, and the outer wall of the rotating shaft is provided with an external thread, wherein the external thread and the internal thread are threadedly engaged.

[0012] By adopting the above technical solution, the first connecting platform and the rotating shaft are detachably connected via a threaded connection, facilitating the replacement or maintenance of the first connecting platform and improving the maintainability of the equipment. Furthermore, the installation position of the first connecting platform on the rotating shaft can be adjusted by the engagement of the internal and external threads, thereby facilitating the adjustment of the deformation degree of the buffer spring.

[0013] Optionally, a threaded hole is provided through the side wall of the first connecting platform, and a positioning screw is threadedly connected to the first connecting platform through the threaded hole. The end of the positioning screw is used to abut against the rotating shaft.

[0014] By adopting the above technical solution, after the first connecting platform is installed at a suitable position on the rotating shaft, the positioning screw is screwed into the threaded hole until the end of the positioning screw abuts against the rotating shaft, thereby fixing the first connecting platform to the rotating shaft and ensuring the connection stability between the first connecting platform and the rotating shaft.

[0015] Optionally, the cutter is connected to a second connecting platform, the second connecting platform having a mounting groove for accommodating the universal ball; the surface of the universal ball abuts against the groove wall of the mounting groove.

[0016] By adopting the above technical solution, the connection between the cutter and the omnidirectional ball is realized by using the second connecting platform. Only the second connecting platform needs to be fixed on the existing cutter, without the need to redesign the cutter structure, thus reducing improvement costs.

[0017] Optionally, the second connecting platform is provided with an annular elastic sheet, the outer edge of the elastic sheet is connected to the second connecting platform, and the inner edge of the elastic sheet is connected to the side wall of the connecting shaft.

[0018] By adopting the above technical solution, the groove opening of the installation slot is sealed with an annular elastic sheet, reducing the possibility of high-temperature materials getting stuck in the installation slot.

[0019] Optionally, the buffer spring is made of high-temperature resistant spring steel with a wire diameter of 1.8-2.2 mm and a stiffness coefficient of 4.8-5.2 N / mm.

[0020] By adopting the above technical solution, the buffer spring is made of high-temperature resistant spring steel with a wire diameter of 1.8-2.2mm and a stiffness coefficient of 4.8-5.2N / mm, which enables the buffer spring to have high-temperature resistance and maintain its elasticity and normal working performance in high-temperature environments. The appropriate wire diameter and stiffness coefficient can ensure the buffering effect, further reduce cutter vibration, and improve the working stability and production efficiency of the pelletizer.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The cutter is universally connected to the connecting shaft via a ball joint, avoiding direct fixing of the cutter to the rotating shaft via mechanical bearings. This prevents molten, high-temperature material from entering and causing jamming, thus extending the pelletizer's lifespan. A buffer spring is sleeved outside the rotating shaft, with one end connected to the first connecting platform and the other end connected to the cutter. This buffer spring cushions the cutter's eccentric vibration, reduces material accumulation, and improves production efficiency. 2. The first connecting table is detachably connected to the rotating shaft through the engagement of internal and external threads, which facilitates the maintenance of the first connecting table and the rotating shaft, and also facilitates the adjustment of the installation position of the first connecting table on the rotating shaft, thereby improving the flexibility of the pelletizer. 3. By opening a threaded hole in the first connecting table and threading a screw through the threaded hole, the connection strength between the first connecting table and the rotating shaft is strengthened by the contact between the screw and the rotating shaft. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0023] Figure 2 This is a structural diagram of the omnidirectional ball used to demonstrate the mounting groove.

[0024] Figure 3 yes Figure 1 Enlarged diagram of part A.

[0025] Explanation of reference numerals in the attached drawings: 1. Hopper shell; 2. Drive motor; 3. Rotating shaft; 31. First connecting platform; 311. Threaded hole; 312. Screw; 4. Connecting shaft; 41. Universal ball; 5. Cutter; 51. Second connecting platform; 511. Elastic sheet; 52. Mounting groove; 6. Buffer spring. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0027] This application discloses a universal ball type 41 spring buffer hot pelletizing machine.

[0028] Reference Figures 1 to 3A type 41 universal ball spring-buffered hot pellet mill includes a hopper shell 1, a drive motor 2, a rotating shaft 3, a connecting shaft 4, a cutter 5, and a buffer spring 6.

[0029] The drive motor 2 is mounted on the outer wall of the hopper shell 1, and the rotating shaft 3 is connected to the output shaft of the drive motor 2. The connecting shaft 4 is fixedly connected to the inner wall of the hopper shell 1 and is coaxial with the rotating shaft 3. The end of the connecting shaft 4 away from the drive motor 2 is provided with a universal ball 41, and the cutter 5 is universally connected through the universal ball 41 at the end of the connecting shaft 4.

[0030] In this embodiment, the universal ball 41 and the connecting shaft 4 are integrally formed. The universal ball 41 is made of stainless steel, has a diameter of 20mm, and a surface polishing Ra≤0.2μm.

[0031] A buffer spring 6 is sleeved around the rotating shaft 3, and its two ends are respectively connected to the first connecting platform 31 and the cutter 5 on the periphery of the rotating shaft 3. The buffer spring 6 is made of high-temperature resistant spring steel with a wire diameter of 1.8-2.2mm, preferably 2mm, and a stiffness coefficient of 4.8-5.2N / mm, preferably 5N / mm.

[0032] With the above design, the universal ball joint 41 allows the cutter 5 to flexibly adjust its angle, the buffer spring 6 buffers the vibration of the cutter 5, and the buffer spring 6 automatically compensates for the deviation between the cutter 5 and the extrusion strip, thereby reducing the vibration caused by the eccentricity of the cutter 5, reducing the material accumulation rate, and improving the life and production efficiency of the pelletizer.

[0033] Specifically, a first connecting platform 31 is provided on the circumference of the rotating shaft 3, and one end of the buffer spring 6 is connected to the first connecting platform 31. In this embodiment, the first connecting platform 31 is arranged around the circumference of the rotating shaft 3, that is, the first connecting platform 31 has a ring structure, so as to ensure the connection area between the first connecting platform 31 and the buffer spring 6 and to ensure the connection strength between the buffer spring 6 and the first connecting platform 31.

[0034] In other embodiments, the first connecting platform 31 may also be a plurality of block structures arranged circumferentially around the rotation axis 3.

[0035] Furthermore, in this embodiment, the inner wall of the first connecting platform 31 is provided with internal threads, and the outer wall of the rotating shaft 3 is provided with external threads. The connection is achieved through the threaded engagement of the internal and external threads. With this connection method, the first connecting platform 31 and the rotating shaft 3 are detachably connected via the threaded engagement, facilitating the replacement or repair of the first connecting platform 31 and improving the maintainability of the equipment. In addition, the installation position of the first connecting platform 31 on the rotating shaft 3 can be adjusted by the engagement of the internal and external threads, thereby facilitating the adjustment of the deformation degree of the buffer spring 6.

[0036] Furthermore, a threaded hole 311 is provided through the side wall of the first connecting platform 31, and a positioning screw 312 is threadedly connected through the threaded hole 311. The end of the positioning screw 312 is used to abut against the rotating shaft 3, further enhancing the stability of the connection.

[0037] In other embodiments, the first connecting platform 31 may also adopt other detachable methods such as clamp connection.

[0038] Furthermore, a second connecting platform 51 is fixedly connected to the side of the cutter 5 near the rotating shaft 3. The second connecting platform 51 has a mounting groove 52 for accommodating the universal ball 41. The surface of the universal ball 41 abuts against the groove wall of the mounting groove 52 to achieve universal connection of the cutter 5.

[0039] Furthermore, the second connecting platform 51 is provided with an annular elastic sheet 511, the outer edge of the elastic sheet 511 is connected to the second connecting platform 51, and the inner edge of the elastic sheet 511 is connected to the side wall of the connecting shaft 4. The implementation principle of a universal ball type 41 spring-buffered hot pelletizer according to an embodiment of this application is as follows: the drive motor 2 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the cutter 5 to rotate through the buffer spring 6 to perform pelletizing operation. The universal ball 41 allows the cutter 5 to flexibly adjust its angle, avoiding vibration caused by the eccentricity of the cutter 5, and also preventing molten high-temperature material from intruding into the connection parts. The buffer spring 6 can effectively buffer the vibration of the cutter 5 during operation, reduce the material accumulation rate, and improve the service life and production efficiency of the pelletizer.

Claims

1. A universal ball-type spring-buffered hot pelletizing machine, characterized in that: The device includes a hopper shell (1), a drive motor (2), a rotating shaft (3), a connecting shaft (4), a cutter (5), and a buffer spring (6); the drive motor (2) is mounted on the hopper shell (1), and the rotating shaft (3) is connected to the output shaft of the drive motor; the connecting shaft (4) is fixedly connected to the hopper shell (1) and coaxially arranged with the rotating shaft (3); the end of the connecting shaft (4) is provided with a universal ball (41), and the cutter (5) is universally connected to the connecting shaft (4) through the universal ball (41); The buffer spring (6) is sleeved outside the rotating shaft (3); a first connecting platform (31) is provided on the periphery of the rotating shaft (3); one end of the buffer spring (6) is connected to the first connecting platform (31), and the other end is connected to the cutter (5).

2. The universal ball-type spring-buffered hot pelletizer according to claim 1, characterized in that: The first connecting platform (31) is arranged circumferentially around the rotation axis (3).

3. The universal ball-type spring-buffered hot pelletizer according to claim 2, characterized in that: The first connecting platform (31) is detachably connected to the rotating shaft (3).

4. The universal ball-type spring-buffered hot pelletizer according to claim 3, characterized in that: The inner wall of the first connecting platform (31) is provided with an internal thread, and the outer wall of the rotating shaft (3) is provided with an external thread, and the external thread is threadedly engaged with the internal thread.

5. A universal ball-type spring-buffered hot pelletizer according to claim 3 or 4, characterized in that: The first connecting platform (31) has a threaded hole (311) through its side wall. The first connecting platform (31) is threadedly connected to a positioning screw (312) through the threaded hole (311). The end of the positioning screw (312) is used to abut against the rotating shaft (3).

6. The universal ball-type spring-buffered hot pelletizer according to claim 1, characterized in that: The cutter (5) is connected to a second connecting platform (51), and the second connecting platform (51) has an installation groove (52) for accommodating the universal ball (41); the surface of the universal ball (41) abuts against the groove wall of the installation groove (52).

7. A universal ball-type spring-buffered hot pelletizer according to claim 6, characterized in that: The second connecting platform (51) is provided with an annular elastic sheet. The outer edge of the elastic sheet is connected to the second connecting platform (51), and the inner edge of the elastic sheet is connected to the side wall of the connecting shaft (4).

8. The universal ball-type spring-buffered hot pelletizer according to claim 1, characterized in that: The buffer spring (6) is made of high-temperature resistant spring steel with a wire diameter of 1.8-2.2 mm and a stiffness coefficient of 4.8-5.2 N / mm.

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