Main shaft dustproof structure of vertical type circular mold particle forming machine

Abstract

The utility model discloses a main shaft dustproof structure of a vertical type circular mould particle forming machine, which comprises a base and a main shaft component, the base comprises a main shaft hole and an ash discharge port, a main shaft is embedded in the main shaft hole, the main shaft component comprises the main shaft and a main disc, the main disc is connected onto the main shaft, the upper disc surface of the main disc is used for installing a compression roller assembly, and the main shaft dustproof structure further comprises an ash removal groove. The ash removal groove is formed below the main disc, an ash removal plate is arranged in the ash removal groove, the top of the ash removal plate is connected to the lower surface of the main disc, the bottom of the ash removal plate is tightly attached to the bottom face of the ash removal groove, and the ash discharge port is communicated with the bottom face of the ash removal groove. Therefore, by arranging the combination of the ash removal groove and the ash removal plate, dust is pushed to the ash discharge port to be discharged in time, the dust can be prevented from being accumulated in the gap and continuously moving towards one side of the main shaft, the active dust prevention effect is achieved, and the situation that a bearing of the main shaft is damaged by the dust is avoided; and the service life of the main shaft bearing is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to pellet manufacturing technical field, especially stand type ring die pellet forming machine's main shaft dustproof structure. BACKGROUND

[0002] Biomass pellet machine is a kind of biomass, such as sawdust, straw, rice husk, bark and so on, is used as raw material, through pretreatment and processing, it is solidified into high-density pellet fuel, is the ideal fuel of coal oil replacement, can save energy and reduce emissions, with good economic benefit and social benefit.

[0003] When preparing biomass pellets, biomass powder enters the equipment, then through the strong extrusion of ring die and pressure roller, material is extruded from the die hole of ring die to form pellets, in the process, due to the restriction of rotating structure on main shaft, part of biomass powder is easy to enter the main shaft through gap, thereby directly affecting even destroying the smooth rotation of main shaft, leading to the loss of main shaft and even the whole pellet machine.

[0004] Therefore, people usually adopt sealing ring to seal small gap, although the invasion of powder can be effectively plugged by sealing ring, but since sealing ring will be worn out in the rotating process of main shaft, gap will become larger and larger, so that the dust entering the gap will be more and more, so that the dust needs to be cleaned periodically, thereby greatly increasing the daily maintenance cost, which is not conducive to the improvement of economic benefit. SUMMARY

[0005] The utility model discloses a kind of main shaft dustproof structures of vertical ring die pellet forming machine, and the technical problem of one of the prior art is solved.

[0006] According to the main shaft dustproof structure of vertical ring die pellet forming machine of the utility model embodiment, it includes:

[0007] Base, the base includes main shaft hole and ash outlet;

[0008] Main shaft assembly, the main shaft assembly includes main shaft and main disc, the main shaft is embedded in the main shaft hole, the main disc is connected on the main shaft, and the main disc is used to install and drive pressure roller assembly;And

[0009] Ash removal groove, the ash removal groove is located below the main disc, ash removal plate is provided in the ash removal groove, the top of the ash removal plate is connected to the lower surface of the main disc, the bottom is tightly attached to the bottom surface of the ash removal groove, and the ash outlet is communicated with the ash removal groove.

[0010] According to some embodiments of the utility model, still include: oil seal cover, the oil seal cover includes cover body and limit ring, the limit ring fixedly arranged at the lower surface of cover body, wherein, the limit ring is embedded in the main shaft hole, the cover body at least partial cover the upper end surface of main shaft hole, the ash removal groove is arranged at the outside of cover body.

[0011] According to some embodiments of the utility model, the oil seal cover still includes: first annular sealing plate, the first annular sealing plate is arranged on the upper surface of oil seal cover, the lower surface of main disc is equipped with first annular groove, the first annular sealing plate is arranged in the first annular groove, and the outside of first annular sealing plate is tightly combined with the inside of first annular groove.

[0012] According to some embodiments of the utility model, still include: sealing ring, the sealing ring is arranged on the inside of first annular sealing plate, and the upper surface of sealing ring is tightly combined with the top wall of first annular groove.

[0013] According to some embodiments of the utility model, the sealing ring is lip-shaped sealing ring, and the lip of lip-shaped sealing ring is tightly combined with the top wall of first annular groove.

[0014] According to some embodiments of the utility model, the sealing ring adopts FB fluorine glue sealing ring.

[0015] According to some embodiments of the utility model, still include: dust baffle ring, the dust baffle ring is arranged on the base, and is adjacent to the circumference of main disc.

[0016] According to some embodiments of the utility model, the lower surface of main disc is equipped with second annular groove, and annular convex is arranged on dust baffle ring, and the annular convex is embedded in second annular groove.

[0017] According to some embodiments of the utility model, the ash removal groove is enclosed by oil seal cover, dust baffle ring and base.

[0018] According to some embodiments of the utility model, the ash removal plate includes plate body and bristle, the lower edge of plate body is suspended on the bottom of ash removal groove, one end of bristle is connected to the lower end, left end and right end of plate body respectively, and the other end extends to the inner wall of ash removal groove. Beneficial effects

[0019] The utility model discloses a combination of ash removal groove and ash removal plate, which can timely push dust to the ash discharge port for discharge, avoid dust accumulation in the gap and continue to move to the main shaft side, realize the effect of active dust prevention, avoid damage to the bearing of main shaft, and improve the service life of main shaft bearing. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the overall structure of the base and main shaft assembly of the vertical ring die pellet forming machine according to an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the base and spindle assembly according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the main disk separation according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of a dust removal plate according to an embodiment of the present utility model.

[0025] Figure label:

[0026] 1. Base; 11. Spindle hole; 12. Ash discharge port; 2. Spindle assembly; 21. Spindle; 22. Main disc; 221. First annular groove; 222. Second annular groove; 3. Ash cleaning groove; 4. Ash cleaning plate; 41. Plate body; 42. Brush bristles; 5. Oil seal cover; 51. Cover body; 52. Limiting ring; 53. First annular sealing plate; 54. Sealing ring; 6. Ash blocking ring; 61. Annular protrusion. Detailed Implementation

[0027] The technical solutions of the embodiments disclosed in this application will be clearly and completely described below with reference to the accompanying drawings. The descriptions of the embodiments are merely illustrative and exemplary, and are not intended to limit the scope of this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort should fall within the scope of protection of this disclosure. Furthermore, techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification.

[0028] Combination Figures 1 to 4As shown, the main shaft dustproof structure 100 of the vertical ring die pellet forming machine comprises a base 1 and a main shaft assembly 2, wherein the base 1 comprises a main shaft hole 11 and an ash discharge port 12, the main shaft 21 is embedded in the main shaft hole 11, the main shaft assembly 2 comprises the main shaft 21 and a main disc 22, the main disc 22 is connected to the main shaft 21, and the upper disc surface of the main disc 22 is used for mounting a compression roller assembly; in use, the main shaft 21 can drive the main disc 22 to rotate, the main disc 22 drives the compression roller assembly to rotate, and then the biomass powder is extruded into biomass particles by the action force between the compression roller and the ring die.

[0029] Further comprising an ash removal groove 3 arranged below the main disc 22, the ash removal groove 3 is provided with an ash removal plate 4, the top of the ash removal plate 4 is connected to the lower surface of the main disc 22, the bottom is tightly attached to the bottom surface of the ash removal groove 3, and the ash discharge port 12 is in communication with the bottom surface of the ash removal groove 3.

[0030] In use, the biomass powder is easy to move from the peripheral gap of the main disc 22 to the lower part of the main disc 22 and gradually approach the bearing of the main shaft 21 along the gap below the main disc 22, therefore, the annular ash removal groove 3 arranged on the moving path of the biomass powder can effectively cut off the advance of the powder, so that the biomass powder falls into the ash removal groove 3, and then the powder in the ash removal groove 3 is pushed to the ash discharge port 12 by the ash removal plate 4 rotating with the main shaft 21, so that the powder leaves the ash discharge port 12.

[0031] Therefore, when the biomass powder enters the ash removal groove 3, the dust can be pushed to the ash discharge port 12 in time by the ash removal plate 4, so that the dust can be prevented from accumulating at the gap and moving to the side of the main shaft 21, thereby achieving the effect of active dust prevention and avoiding damage to the bearing of the main shaft 21, so that the service life of the bearing of the main shaft 21 is improved.

[0032] It should be noted that the ash removal groove 3 can be directly arranged on the base 1, that is, a groove structure is excavated on the outside of the main shaft hole 11 of the base 1; of course, as one of the alternative solutions of the ash removal groove 3, the ash removal groove 3 can also be surrounded by a component, that is, a groove structure is surrounded by the structure of the dust blocking ring 6 and the oil seal cover 5 on the upper surface of the base 1.

[0033] Further, on the basis of the above embodiment, as Figure 2As shown, the vertical ring die pelletizing machine further comprises an oil seal cover 5, wherein the oil seal cover 5 comprises a cover body 51 and a limiting ring 52 fixedly arranged at the lower surface of the cover body 51, the limiting ring 52 is embedded in the main shaft hole 11 during installation, and the cover body 51 at least partially covers the upper end surface of the main shaft hole 11, and the ash removal groove 3 is arranged on the outer side of the cover body 51. In this way, the limiting ring 52 can be tightly embedded in the main shaft hole 11, and the gap between the limiting ring 52 and the inner wall of the main shaft hole 11 is sealed by the peripheral edge of the cover body 51, and the height of the cover body 51 can block the biomass dust from spreading to the main shaft 21.

[0034] Preferably, the oil seal cover 5 further comprises a first annular sealing plate 53, and the lower surface of the main disc 22 is provided with a first annular groove 221, the first annular sealing plate 53 is integrally arranged on the upper surface of the oil seal cover 5, and during assembly, the first annular sealing plate 53 is inserted into the first annular groove 221, and the outer side surface of the first annular sealing plate 53 is tightly attached to the inner side surface of the first annular groove 221, thereby improving the sealing performance between the oil seal cover 5 and the main disc 22, and preventing the dust from entering the bearing chamber through the gap between the oil seal cover 5 and the main disc 22.

[0035] More preferably, the inner side surface of the first annular sealing plate 53 is further provided with a sealing ring 54, and the sealing ring 54 is a lip-shaped sealing ring 54, and the upper surface of the sealing ring 54 is tightly attached to the top wall of the first annular groove 221, thereby improving the sealing reliability between the sealing ring 54 and the main disc 22.

[0036] In addition, the sealing ring 54 is an FB fluorine rubber sealing ring 54, and the fluorine rubber sealing ring can withstand a high temperature of 300 DEG C, thereby improving the durability in harsh working conditions, and the oil resistance of the fluorine rubber sealing ring is the best among oil-resistant rubbers, so that the sealing ring 54 is not affected by the grease or lubricating oil of the bearing, thereby prolonging the service life of the sealing ring 54 and reducing the replacement frequency.

[0037] In some embodiments of the present application, as shown in Figure 2 and Figure 3 As shown, the vertical ring die pelletizing machine further comprises a dust blocking ring 6, wherein the dust blocking ring 6 is detachably arranged on the base 1 and closely adjacent to the peripheral edge of the main disc 22, so as to seal the gap between the main disc 22 and the base 1, thereby preventing the biomass powder from entering the lower part of the main disc 22 through the gap, and avoiding the biomass powder directly leaving the pelletizing machine through the ash discharge port 12, thereby preventing the waste of biomass powder raw materials.

[0038] Preferably, as shown in Figure 3As shown, the lower surface of the main disc 22 is provided with a second annular groove 222, and the dust-proof ring 6 is provided with an annular protrusion 61 which is embedded in the second annular groove 222, so that the dust-proof ring 6 and the main disc 22 can not only be sealed, but also can avoid direct contact between the dust-proof ring 6 and the main disc 22, reduce the friction resistance between the dust-proof ring 6 and the main disc 22, and avoid rapid wear of the dust-proof ring 6.

[0039] In some embodiments of the utility model, as shown in the figure, Figure 2 As shown, the dust removal groove 3 is enclosed by the oil seal cover 5, the dust-proof ring 6 and the base 1, specifically, the oil seal cover 5 is detachably connected to the base 1, and the dust-proof ring 6 is detachably connected to the base 1, so that the oil seal cover 5 and the dust-proof ring 6 can form the dust removal groove 3 structure without cutting materials on the base 1, which not only reduces the processing technology and processing cost of the base 1, but also facilitates replacement and maintenance of the dust-proof ring 6 and the oil seal cover 5, and reduces the use cost.

[0040] In some embodiments of the utility model, the dust removal plate 4 comprises a plate body 41 and a brush 42, the lower edge of the plate body 41 is suspended on the bottom surface of the dust removal groove 3, one end of the brush 42 is connected to the lower end, the left end and the right end of the plate body 41 respectively, and the other end extends to the inner wall of the dust removal groove 3.

[0041] When the dust falls into the dust removal groove 3, the dust will adhere to the inner wall of the dust removal groove 3, especially the bottom wall of the dust removal groove 3, at this time, the brush 42 arranged on the plate body 41 can brush off the dust more easily; compared with the mode that the plate body 41 directly contacts with the inner wall of the dust removal groove 3, the brush 42 can effectively reduce the rotating resistance and friction noise, and also can avoid the problem of abrasion of the plate body 41, thereby prolonging the service life of the dust removal plate 4.

[0042] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0043] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example.

[0044] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A main shaft dustproof structure of a vertical ring die pelletizing machine, characterized by, The base comprises a main shaft hole and an ash discharge port. The main shaft assembly comprises a main shaft and a main disc, the main shaft is embedded in the main shaft hole, and the main disc is connected to the main shaft and used for mounting and driving a compression roller assembly. The ash removal groove is provided below the main disc, the ash removal groove is provided with an ash removal plate, the top of the ash removal plate is connected to the lower surface of the main disc, the bottom is tightly attached to the bottom surface of the ash removal groove, and the ash discharge port is in communication with the ash removal groove. The oil seal cover comprises a cover body and a limiting ring, the limiting ring is fixedly arranged at the lower surface of the cover body, when the limiting ring is embedded in the main shaft hole, the cover body at least partially covers the upper end surface of the main shaft hole, and the ash removal groove is arranged outside the cover body. The oil seal cover further comprises a first annular sealing plate arranged on the upper surface of the oil seal cover, the lower surface of the main disc is provided with a first annular groove, the first annular sealing plate is arranged in the first annular groove, and the outer side surface of the first annular sealing plate is tightly attached to the inner side surface of the first annular groove.

2. The main shaft dustproof structure of a vertical ring die granulator according to claim 1, characterized in that, The sealing ring is arranged on the inner side surface of the first annular sealing plate, and the upper surface of the sealing ring is tightly attached to the top wall of the first annular groove. The sealing ring is a lip-shaped sealing ring, and the lip of the lip-shaped sealing ring is tightly attached to the top wall of the first annular groove.

3. The main shaft dustproof structure of a vertical ring die granulator according to claim 2, characterized in that, The sealing ring is an FB fluorine rubber sealing ring.

4. The main shaft dustproof structure of a vertical ring die granulator according to claim 3, characterized in that, The ash blocking ring is arranged on the base and closely adjacent to the periphery of the main disc. The lower surface of the main disc is provided with a second annular groove, the ash blocking ring is provided with an annular protrusion, and the annular protrusion is embedded in the second annular groove.

5. The main shaft dustproof structure of a vertical ring die granulator according to claim 4, characterized in that, The ash removal groove is surrounded by the oil seal cover, the ash blocking ring and the base.

6. The main shaft dustproof structure of a vertical ring die granulator according to claim 4 or 5, characterized in that, The ash removal plate comprises a plate body and bristles, the lower edge of the plate body is suspended on the bottom surface of the ash removal groove, one end of the bristles is respectively connected to the lower end, the left end and the right end of the plate body, and the other end extends to the inner wall of the ash removal groove.

7. The main shaft dustproof structure of a vertical ring die granulator according to claim 2, characterized in that, ​ ​ 8. The main shaft dustproof structure of a vertical ring die granulator according to claim 7, characterized in that, ​ 9. The main shaft dustproof structure of a vertical ring die granulator according to claim 7 or 8, characterized in that, ​ 10. The main shaft dustproof structure of a vertical ring die granulator according to claim 1, characterized in that, ​

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