Extrusion granulator structure

Abstract

The utility model provides an extrusion granulator structure, belongs to the field of powder forming granulation equipment, and solves the problem that the existing granulator cannot run stably due to small yield, small load and overlarge vibration. The discharging device comprises a rack and a discharging pipe, a mounting seat is arranged on the rack, a bearing seat is mounted on the mounting seat, a cylindrical roller bearing is mounted in the bearing seat, a rotating shaft is mounted in the bearing seat, an auger structure is mounted on the rotating shaft, the auger structure and the rotating shaft are mounted in the discharging pipe, and a cylindrical discharging head is mounted on the discharging pipe. A cover plate is installed at the front end of the cylindrical discharging head, an annular cover is installed on the cylindrical discharging head, and a discharging opening is formed in the annular cover. The utility model has the advantages that the discharge port at the cover plate is changed into the discharge port of the cylindrical discharge head, so that the discharge area is increased; the bearing seat is additionally arranged on the machine frame, jumping of the rotating shaft is borne through the bearing, so that the rotating shaft operates stably, larger load and rotating speed can be borne, and productivity is improved.

Description

Technical Field

[0001] The utility model belongs to the field of powder forming granulation equipment and relates to a granulator structure, in particular to an extrusion granulator structure. Background Art

[0002] Granulator is a machine that mixes materials that have been broken into powder, extrude them and outputs them into granules. It is widely used in chemical, petrochemical, pharmaceutical, food, building materials, mining and metallurgy, environmental protection, printing and dyeing, ceramics, rubber, plastics and other fields.

[0003] Extrusion-type granulators usually transport mixed materials through a screw or auger structure. The material discharge port is usually a cover installed on the discharge pipe, and an opening is set on the cover. Since the cover is the fulcrum supporting the rotating shaft, there are few openings on the cover. In order to prevent the material from blocking the opening, the transported material is small and the production capacity is low. The cover is located at the end of the transportation device and is affected by the lever effect and is subject to large vibrations. The material may be cut off in the middle when being extruded and cannot be completely granulated. Utility Model Content

[0004] The utility model aims to solve the above problems existing in the prior art and provides a granulator structure with a simple structure, which can bear a larger load, reduce vibration, improve production capacity and run stably.

[0005] The utility model can be realized through the following technical scheme: an extrusion granulator structure, including a frame and a discharge pipe, the frame is provided with a mounting seat, the mounting seat is installed with a bearing seat, a rotating shaft is installed in the bearing seat, an auger structure is provided on the rotating shaft, the rotating shaft and the auger structure are installed in the discharge pipe, a cylindrical discharge head is installed on the discharge pipe, and a cover plate is installed at the front end of the cylindrical discharge head.

[0006] In the above-mentioned extrusion granulator structure, two cylindrical roller bearings are installed in the bearing seat, and the cylindrical roller bearings are installed on the rotating shaft.

[0007] In the above-mentioned extrusion granulator structure, an annular cover is installed on the cylindrical discharge head, and a discharge port is opened on the annular cover.

[0008] In the above-mentioned extrusion granulator structure, a sealing ring is arranged between the cylindrical discharge head and the discharge pipe.

[0009] In the above-mentioned extrusion granulator structure, the cylindrical discharge head is provided with an annular protrusion, and the cover plate is provided with a corresponding annular groove.

[0010] In the above-mentioned extrusion granulator structure, two key slots are provided at the output end of the rotating shaft, and the key slots are 180° apart.

[0011] Compared with the prior art, the advantages of the utility model are: a bearing seat is added to the frame, the support points of the rotating shaft are increased, and the load and vibration of the rotating shaft are reduced; an annular cover with a discharge port is installed on the cylindrical discharge head, which increases the discharge area, and the auger structure arranged on the rotating shaft can serve as a cutting device on the granulator, which is convenient for material granulation and simplifies the structure; the setting of two keyways makes the torque on the rotating shaft more uniform and reduces the vibration amplitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of the structure of the extrusion granulator;

[0013] Figure 2 yes Figure 1 Enlarged view of the inner circle A;

[0014] Figure 3 yes Figure 1 Enlarged view of inner circle B;

[0015] Figure 4 yes Figure 1 Enlarged view of the inner circle C;

[0016] Figure 5 It is a cross-sectional view of the discharge pipe of the extrusion granulator structure;

[0017] Among them, 1. frame; 11. mounting seat; 2. discharge pipe; 3. bearing seat; 31. cylindrical roller bearing; 4. rotating shaft; 41. auger structure; 42. keyway; 5. cylindrical discharge head; 51. annular cover; 511. discharge port; 52. annular protrusion; 6. cover plate; 61. annular groove; 7. sealing ring. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figures 1 to 5 As shown, the utility model can be implemented through the following embodiments: an extrusion granulator structure, including a frame 1 and a discharge pipe 2, a mounting seat 11 is provided on the frame 1, a bearing seat 3 is installed on the mounting seat 11, a rotating shaft 4 is installed in the bearing seat 3, an auger structure 41 is provided on the rotating shaft 4, the rotating shaft 4 and the auger structure 41 are installed in the discharge pipe 2, a cylindrical discharge head 5 is installed on the discharge pipe 2, and a cover plate 6 is installed at the front end of the cylindrical discharge head 5.

[0020] A bearing seat 3 is added to the frame 1, and a supporting point of the rotating shaft 4 is added through the bearing in the bearing seat 3, so as to reduce the influence of radial runout and torque on the rotating shaft 4, reduce the overall weight of the rotating shaft 4, and make the rotating shaft 4 run smoothly; the auger structure 41 is set to transport powdered materials and convey them to the cylindrical discharge head 5, and the cover plate 6 is used to cover the cylindrical discharge head 5 to prevent the material from flowing out and provide support for the rotating shaft 4.

[0021] like Figure 1 and Figure 4 As shown, two cylindrical roller bearings 31 are installed in the bearing seat 3, and the cylindrical roller bearings 31 are installed on the rotating shaft 4. The cylindrical roller bearings 31 have a large radial load capacity and are suitable for bearing heavy loads and impact loads. At the same time, the maximum speed allowed by the cylindrical roller bearings 31 is similar to that of the deep groove ball bearings, which facilitates the high-speed rotation of the rotating shaft 4 and increases the transportation volume of materials.

[0022] like Figure 1 , Figure 2 and Figure 5 As shown, an annular cover 51 is installed on the cylindrical discharge head 5, and a discharge port 511 is opened on the annular cover 51. The discharge port 511 is opened on the annular cover 51, compared with opening the discharge port 511 on the cover plate 6, avoiding the shaft 4 from occupying the discharge area, increasing the material discharge area, and improving the production capacity of the granulator.

[0023] like Figure 1 and Figure 2 As shown, a sealing ring is provided between the cylindrical discharge head 5 and the discharge pipe 2. The provision of the sealing ring strengthens the sealing between the discharge pipe 2 and the cylindrical discharge head 5, preventing the material from being squeezed out from the gap between the cylindrical discharge head 5 and the discharge pipe 2 during the extrusion process, causing waste.

[0024] like Figure 1 and Figure 3 As shown, an annular protrusion 52 is provided on the cylindrical discharge head 5, and a corresponding annular groove 61 is provided on the cover plate 6. The annular protrusion 52 cooperates with the annular groove 61 to form a curved surface between the cover plate 6 and the cylindrical discharge head 5, thereby improving the sealing performance between the cover plate 6 and the cylindrical discharge head 5, preventing the material from overflowing from the contact surface between the cover plate 6 and the cylindrical discharge head 5; and facilitating the installation of the cover plate 6 on the cylindrical discharge head 5, preventing the cover plate 6 from being affected by excessive vibration and causing poor sealing performance.

[0025] like Figure 5 As shown, the output end of the rotating shaft 4 is provided with two keyways 42, which are 180° apart. The design of the double keyways 42 can transmit torque more smoothly while transmitting power, preventing radial runout of the rotating shaft 4 when rotating, so that the rotating shaft 4 can run more smoothly, reduce vibration of the rotating shaft 4, and facilitate material granulation.

[0026] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0027] Although various terms are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An extrusion granulator structure, comprising a frame (1) and a discharge pipe (2), characterized in that: The frame (1) is provided with a mounting seat (11), a bearing seat (3) is installed on the mounting seat (11), a rotating shaft (4) is installed in the bearing seat (3), an auger structure (41) is provided on the rotating shaft (4), the rotating shaft (4) and the auger structure (41) are installed in a discharge pipe (2), a cylindrical discharge head (5) is installed on the discharge pipe (2), and a cover plate (6) is installed at the front end of the cylindrical discharge head (5).

2. An extrusion granulator structure according to claim 1, characterized in that: Two cylindrical roller bearings (31) are installed in the bearing seat (3), and the cylindrical roller bearings (31) are installed on the rotating shaft (4).

3. An extrusion granulator structure according to claim 1, characterized in that: An annular cover (51) is installed on the cylindrical discharge head (5), and a discharge port (511) is provided on the annular cover (51).

4. An extrusion granulator structure according to claim 1, characterized in that: A sealing ring (7) is provided between the cylindrical discharge head (5) and the discharge pipe (2).

5. The extrusion granulator structure according to claim 1, characterized in that: The cylindrical discharge head (5) is provided with an annular protrusion (52), and the cover plate (6) is provided with a corresponding annular groove (61).

6. An extrusion granulator structure according to claim 1, characterized in that: The output end of the rotating shaft (4) is provided with two key slots (42), and the key slots (42) are 180° apart.

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