External bearing conical roller flat die extrusion granulator

Abstract

The utility model belongs to extruding granulator technical field especially a kind of external bearing conical roller flat die extruding granulator, in the prior art, in the process of using, the process of roller and template friction, it is prone to cause roller bearing temperature to be too high, to affect performance, prone to damage, material dust is prone to enter into bearing cavity, prone to damage, sealing element is prone to damage, need to frequently change problem, present and propose following scheme, it includes template, rack and the motor being set in rack top;Granulating cylinder, fixedly installed in rack top;Feed hopper, fixedly installed in granulating cylinder top;Shaft, fixedly installed in motor output shaft, shaft is rotatably connected with rack;Small pulley, the utility model, in the process of using, adopt conical roller, purpose makes material extrusion stress uniform, reduces uneven wear, can avoid that material dust enters into bearing cavity, increases the service life of roller and flat template.

Description

Technical Field

[0001] This application relates to the field of extrusion granulation technology, and in particular to a flat die extrusion granulator with an external bearing tapered roller. Background Technology

[0002] In the production of organic fertilizer pellets, the rollers and templates of traditional flat die extrusion pelletizers are key wear parts that are subjected to high-load extrusion and friction for a long time, resulting in rapid wear. For example, for materials with low adhesion and difficult to form, such as sawdust, rice husks, cotton stalks and other crop straw, as well as household waste, waste plastics and factory waste.

[0003] In existing technologies, during use, the friction between the roller and the template can easily cause the roller bearing temperature to become too high, thus affecting performance and making it prone to damage. Material dust can easily enter the bearing cavity, causing damage as well as damage to the seals, requiring frequent replacement. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as excessively high roller bearing temperature during the friction between the roller and the template, which affects performance, leads to easy damage, easy entry of material dust into the bearing cavity, and easy damage to the seals, requiring frequent replacement. The invention proposes an external bearing conical roller flat die extrusion granulator.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An external bearing tapered roller flat die extrusion granulator includes:

[0007] Template, frame, and motor mounted on top of the frame;

[0008] The granulation cylinder is fixedly installed on the top of the frame;

[0009] The feed hopper is fixedly installed on the top of the granulation cylinder;

[0010] The rotating shaft is fixedly mounted on the motor output shaft and is rotatably connected to the frame.

[0011] The small pulley is fixedly installed on the outer surface of the shaft;

[0012] The discharge cylinder is located inside the granulation cylinder;

[0013] The discharge hopper is fixedly installed on one side of the granulation cylinder.

[0014] Preferably, the small pulley is engaged with a V-belt, the V-belt is engaged with a large pulley, and a rotating rod is fixedly installed on the large pulley.

[0015] Preferably, the rotating rod is rotatably connected to the frame, and a spindle bearing seat is fixedly installed on the outer surface of the rotating rod, and the spindle bearing seat is rotatably connected to the frame.

[0016] Preferably, a material discharge disc is fixedly installed on the top of the main shaft bearing housing, a main shaft is fixedly installed at the center of the top of the main shaft bearing housing, and the discharge cylinder is located outside the main shaft.

[0017] Preferably, roller fixing and adjusting devices are fixedly installed around the granulation cylinder, and each of the four roller fixing and adjusting devices has a screw rotatably installed inside.

[0018] Preferably, each of the four screws is fixedly equipped with a wrench, and the four screws are respectively rotatably connected to four roller fixing and adjusting devices.

[0019] Preferably, each of the four screws has an L-block threadedly connected to its outer surface, the four L-blocks are slidably connected to four roller fixing and adjusting devices, and roller bearing seats are fixedly installed on the top of each of the four L-blocks.

[0020] Preferably, a roller shaft is rotatably mounted on one side of each of the four roller bearing seats, and a tapered roller is fixedly mounted on the outer surface of each of the four roller shafts.

[0021] The beneficial effects of the external bearing conical roller flat die extrusion granulator described in this utility model are as follows:

[0022] Because the granulation cylinder, feed hopper, discharge cylinder and discharge hopper are set up, the roller bearing seat is placed outside the granulation barrel, and the roller is installed on the shaft end, separate from the bearing. When the outer ring of the roller tooth is worn flat, the roller can be replaced directly. Such rollers do not need to consider installing bearings, which greatly reduces the processing cost and makes maintenance convenient.

[0023] Because of the tapered rollers, roller shafts and roller bearing seats, the linear velocity of the inner and outer diameters of the flat die is not equal when the flat die is working, the material is subjected to unbalanced force, and the wear of the rollers and flat die is also uneven. The purpose of using tapered rollers is to make the material extrusion force uniform, reduce uneven wear, and increase the service life of the rollers and flat die.

[0024] Because the main shaft bearing housing, the material throwing disc and the main shaft are set up, the template rotates actively and the rollers rotate passively. In order to ensure the smooth rotation of the template and uniform contact with the rollers, the main shaft is supported and driven by a hollow shaft large bearing.

[0025] In this invention, a conical roller is used to ensure that the material is squeezed evenly, reducing uneven wear and preventing material dust from entering the bearing cavity, thus increasing the service life of the roller and flat template. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an external bearing conical roller flat die extrusion granulator proposed in this utility model;

[0027] Figure 2 This is a left-side structural schematic diagram of an external bearing conical roller flat die extrusion granulator proposed in this utility model.

[0028] Figure 3 This is a top view of the structure of an external bearing conical roller flat die extrusion granulator proposed in this utility model;

[0029] Figure 4 This is a three-dimensional structural diagram of an external bearing conical roller flat die extrusion granulator proposed in this utility model;

[0030] Reference numerals: 1. Frame; 2. Small pulley; 3. V-belt; 4. Large pulley; 5. Main shaft bearing housing; 6. Discharge disc; 7. Main shaft; 8. Discharge cylinder; 9. Roller fixing and adjusting device; 10. Template; 11. Feed hopper; 12. Conical roller; 13. Roller shaft; 14. Roller bearing housing; 15. Discharge hopper; 16. Granulation cylinder; 17. Motor; 18. Screw; 19. Wrench; 20. L-block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Example 1

[0033] Reference Figures 1-4 An external bearing conical roller flat die extrusion granulator includes:

[0034] Template 10, frame 1, and motor 17 mounted on top of frame 1;

[0035] Granulation cylinder 16 is fixedly installed on the top of frame 1;

[0036] The feed hopper 11 is fixedly installed on the top of the granulation cylinder 16;

[0037] The rotating shaft is fixedly mounted on the output shaft of motor 17 and is rotatably connected to the frame 1.

[0038] Small pulley 2 is fixedly installed on the outer surface of the rotating shaft;

[0039] The discharge cylinder 8 is located inside the granulation cylinder 16;

[0040] The discharge hopper 15 is fixedly installed on one side of the granulation cylinder 16.

[0041] In this embodiment, the small pulley 2 is engaged with the V-belt 3, the V-belt 3 is engaged with the large pulley 4, and a rotating rod is fixedly installed on the large pulley 4.

[0042] In this embodiment, the rotating rod is rotatably connected to the frame 1, and a spindle bearing seat 5 is fixedly installed on the outer surface of the rotating rod. The spindle bearing seat 5 is rotatably connected to the frame 1.

[0043] In this embodiment, a material throwing disc 6 is fixedly installed on the top of the main shaft bearing housing 5, a main shaft 7 is fixedly installed at the center of the top of the main shaft bearing housing 5, and a discharge cylinder 8 is located outside the main shaft 7.

[0044] In this embodiment, roller fixing and adjusting devices 9 are fixedly installed around the granulation cylinder 16, and screws 18 are rotatably installed inside each of the four roller fixing and adjusting devices 9.

[0045] In this embodiment, a wrench 19 is fixedly installed on each of the four screws 18, and the four screws 18 are rotatably connected to the four roller fixing and adjusting devices 9 respectively.

[0046] In this embodiment, the outer surfaces of the four screws 18 are threaded with L blocks 20, the four L blocks 20 are slidably connected to the four roller fixing and adjusting devices 9 respectively, and roller bearing seats 14 are fixedly installed on the top of the four L blocks 20.

[0047] In this embodiment, roller shafts 13 are rotatably mounted on one side of each of the four roller bearing seats 14, and tapered rollers 12 are fixedly mounted on the outer surfaces of each of the four roller shafts 13.

[0048] In this invention, during use, the template 10 is fed into the granulation cylinder 16 through the feed hopper 15. When the granulator is working, the motor 17 is started, and the output shaft of the motor 17 drives the rotating shaft to rotate. The rotating shaft drives the small pulley 2 to rotate, which in turn drives the large pulley 4 to rotate via the V-belt 3. The large pulley 4 drives the rotating rod to rotate, which in turn drives the main shaft bearing seat 5 to rotate. The main shaft bearing seat 5 simultaneously drives the throwing disc 6 and the main shaft 7 to rotate together. That is, the template 10 rotates actively, while the conical roller 12 rotates passively. To ensure the smooth rotation of the template 10 and uniform contact with the conical roller 12, the main shaft 7 is supported and driven by a hollow shaft large bearing. When the flat die extrusion granulator is working, the linear velocity of the inner and outer diameters of the flat die is not equal, resulting in unbalanced material force and uneven wear on the conical roller 12 and the flat die. The use of the conical roller 12 makes the material extrusion force uniform, reduces uneven wear, and increases the wear of the roller and the flat die. The service life of the flat template is adjusted according to the thickness of the template 10. The wrench 19 is turned manually, which drives the screw 19 to rotate. During the rotation of the screw 18, the L block 20 will move upward. The L block 20 will simultaneously drive the roller bearing seat 14, the roller shaft 13 and the conical roller 12 to move upward together. The roller and the template will wear continuously during operation. When the gap between the roller and the template is too large, the extruded granule output will be reduced. Therefore, it should be tightened downward until it just makes contact. The roller bearing seat 14 is placed outside the granulation cylinder 16 and can be adjusted according to the thickness of the template 10. The roller is installed at the shaft end and is separate from the bearing. When the outer ring of the roller tooth is worn flat, the roller can be replaced directly. Such rollers do not need to consider the installation of bearings, which greatly reduces the processing cost and makes maintenance convenient. After the template 10 is processed, it falls into the discharge cylinder 8 and then the template 10 is discharged from the feed hopper 11.

[0049] Example 2

[0050] The difference between this embodiment and Embodiment 1 is that a protective cover is provided on the top of the frame 1 to protect the exterior of the motor 17 and prevent it from being easily damaged when exposed to the outside for a long time.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flat die extrusion granulator with external bearing tapered rollers, characterized in that: include: Template (10), frame (1) and motor (17) mounted on top of frame (1); Granulation cylinder (16) is fixedly installed on the top of frame (1); The feed hopper (11) is fixedly installed on the top of the granulation cylinder (16); The rotating shaft is fixedly installed on the output shaft of the motor (17) and is rotatably connected to the frame (1); Small pulley (2) is fixedly installed on the outer surface of the shaft; The discharge cylinder (8) is located inside the granulation cylinder (16); The discharge hopper (15) is fixedly installed on one side of the granulation cylinder (16).

2. The external bearing conical roller flat die extrusion granulator according to claim 1, characterized in that: The small pulley (2) is engaged with a triangular belt (3), the triangular belt (3) is engaged with a large pulley (4), and a rotating rod is fixedly installed on the large pulley (4).

3. The external bearing conical roller flat die extrusion granulator according to claim 2, characterized in that: The rotating rod is rotatably connected to the frame (1), and a spindle bearing seat (5) is fixedly installed on the outer surface of the rotating rod. The spindle bearing seat (5) is rotatably connected to the frame (1).

4. The external bearing conical roller flat die extrusion granulator according to claim 3, characterized in that: The top of the main shaft bearing housing (5) is fixedly installed with a material throwing disc (6), and the main shaft (7) is fixedly installed at the top center of the main shaft bearing housing (5). The discharge cylinder (8) is located outside the main shaft (7).

5. The external bearing conical roller flat die extrusion granulator according to claim 4, characterized in that: The granulation cylinder (16) is fixedly installed around the four sides with roller fixing and adjusting devices (9), and each of the four roller fixing and adjusting devices (9) has a screw (18) rotatably installed inside.

6. The external bearing conical roller flat die extrusion granulator according to claim 5, characterized in that: Each of the four screws (18) is fixedly equipped with a wrench (19), and the four screws (18) are rotatably connected to the four roller fixing and adjusting devices (9).

7. The external bearing conical roller flat die extrusion granulator according to claim 6, characterized in that: The outer surfaces of the four screws (18) are threaded with L blocks (20), and the four L blocks (20) are slidably connected to the four roller fixing and adjusting devices (9). Roller bearing seats (14) are fixedly installed on the top of the four L blocks (20).

8. The external bearing conical roller flat die extrusion granulator according to claim 7, characterized in that: Roller shafts (13) are rotatably mounted on one side of each of the four roller bearing seats (14), and tapered rollers (12) are fixedly mounted on the outer surfaces of each of the four roller shafts (13).

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