Sealing structure of biomass particle extruder

Abstract

The utility model discloses a sealing structure of a biomass particle extruder, which comprises a box body, a vertical output component for limiting the sealing structure is vertically arranged in the box body, a box cover is bolted and arranged at the top end of the box body, and an upper flange is bolted and arranged on the upper surface of the box cover corresponding to the extending position of the vertical output component. A sealing insertion plate at the bottom of a first sealing triangular plate is matched with a sealing cover to form a labyrinth sealing structure, so that dust cannot enter the device through an upper flange, and meanwhile, a framework oil seal matched with the lower part of the sealing cover in the upper flange is used for preventing grease from entering the upper flange; the second sealing triangular plate installed at the top end of the first sealing triangular plate is used for fixing the using position of the first sealing triangular plate, so that the sealing insertion plate, the sealing cover and the framework oil seal are matched more stably, the influence on the internal structure of the device is reduced to the maximum extent, and the situation that external sundries enter the framework oil seal easily and abrade the oil seal before is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass particle extruder seals, in particular to a sealing structure of a biomass particle extruder. Background Art

[0002] With the development of social economy and the improvement of people's living standards, the surplus of wood scraps and plant straw is increasing. These wastes have low density and bulky volume, resulting in a large amount of energy accumulation. Their destruction not only requires certain manpower and material resources, but also pollutes the environment. The direct combustion of biomass molded fuel is an effective way to make efficient and clean use of biomass worldwide.

[0003] The Chinese utility model patent with publication number CN 219744726 U discloses a transmission device for a biomass fuel pellet machine, including a working box, a feeding box is fixed on one side of the upper end of the working box, a guide plate is fixed on the lower end of the working box, a pellet outlet is provided on the guide plate, a motor is fixed in the middle of the upper end of the working box, a rotating shaft is fixed on the lower end of the motor, the rotating shaft rotates through the working box, an extrusion mechanism for extruding pellets is installed on the rotating shaft, the structure is simple, and the operation is convenient, and the diameter of the straw pellets falling on the guide plate can be made smaller than the diameter of the pellet outlet, so as to avoid the straw pellets blocking the pellet outlet and affecting the processing rate of the straw pellets, and the device can make the straw squeezed downward, and a collecting device is arranged at the lower end of the working box to collect the extruded pellets, so as to reduce the splashing of pellets and the phenomenon of inconvenience in collection, and it is worthy of popularization and use.

[0004] The above-mentioned public documents do not provide a sealing structure with protective properties, so that external debris can easily enter the skeleton oil seal, wear the oil seal, and require frequent replacement of the oil seal. Therefore, a sealing structure for a biomass pellet extruder is now needed. Utility Model Content

[0005] The utility model aims to provide a sealing structure for a biomass pellet extruder, which solves the problem of dust intrusion by a sealing method of a labyrinth seal plus a skeleton oil seal, so as to solve the technical problems mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure of a biomass pellet extruder, comprising a box body and a sealing plug plate, a vertical output assembly for limiting the sealing structure is vertically installed inside the box body, a box cover is bolted to the top of the box body, an upper flange is bolted to the upper surface of the box cover corresponding to the extended position of the vertical output assembly, the vertical output assembly extends from the inside of the upper flange, a first sealing triangle is installed on the upper part of the vertical output assembly, a second annular groove is fitted on the bottom of the first sealing triangle, and a sealing cover is clamped and installed on the bottom of the second annular groove;

[0007] A limiting groove is provided at the center of the upper end of the upper flange, and a skeleton oil seal is embedded and installed at the center of the limiting groove.

[0008] Preferably, a plurality of groups of reinforcing plates are installed on the outer arc surface of the upper flange in equal arcs, a hole is passed through the center of the upper flange, the vertical output assembly extends from the inside of the hole, and the skeleton oil seal is embedded in the upper opening position of the hole.

[0009] Preferably, a plurality of groups of first annular grooves are provided on the upper surface of the sealing cover, and a limiting sleeve is fixedly installed on the lower surface of the sealing cover, and the limiting sleeve is plug-in-seal installed with the skeleton oil seal.

[0010] Preferably, a plurality of groups of second annular grooves are provided on the lower surface of the sealing plug plate corresponding to each group of first annular grooves, the first annular grooves and the second annular grooves are installed in an alternating manner, and the first annular grooves and the second annular grooves are not in contact with each other.

[0011] Preferably, a sealing plate is fixedly installed on the upper surface of the second sealing triangle plate, and holes are fixedly installed through the centers of the first sealing triangle plate and the second sealing triangle plate, and a plurality of groups of connecting through holes are correspondingly opened through the first sealing triangle plate and the second sealing triangle plate.

[0012] Preferably, the top end of the vertical output component is inserted from the inside of the socket, and the outer surface of the vertical output component is tightly fitted against the inner wall of the socket.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] A labyrinth sealing structure is formed by the sealing plug plate at the bottom of the first sealing triangle plate and the sealing cover, so that dust cannot enter the device through the upper flange. At the same time, the skeleton oil seal used in conjunction with the lower part of the sealing cover inside the upper flange prevents grease from entering the upper flange, avoiding blockage to the greatest extent, thereby reducing the replacement of easily worn structures, greatly improving production efficiency, and reducing actual production costs. The second sealing triangle plate installed on the top of the first sealing triangle plate is used to fix the position of the first sealing triangle plate, so that the cooperation between the sealing plug plate, the sealing cover and the skeleton oil seal is more stable, minimizing the impact on the internal structure of the device, and solving the problem that external debris can easily enter the skeleton oil seal, wear the oil seal, and pollute the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the split upper flange installation structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the upper flange of the utility model;

[0018] Figure 4 This is a schematic diagram of the disassembly of the sealing cover installation structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the bottom structure of the first sealing triangle plate of the utility model.

[0020] In the figure: 1, box body; 2, horizontal output assembly; 3, vertical output assembly; 4, box cover; 5, upper flange; 6, reinforcement plate; 7, limit groove; 8, skeleton oil seal; 9, sealing cover; 10, first annular groove; 11, limit sleeve; 12, first sealing triangle plate; 13, sealing plug plate; 14, second annular groove; 15, second sealing triangle plate; 16, sealing plate; 17, plug hole; 18, connecting through hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides: a sealing structure of a biomass particle extruder, such as Figure 1-Figure 5 As shown, it includes a box body 1 and a sealing plug plate 13, a vertical output component 3 for limiting the sealing structure is vertically installed inside the box body 1, a box cover 4 is bolted to the top of the box body 1, an upper flange 5 is bolted to the upper surface of the box cover 4 corresponding to the extended position of the vertical output component 3, the vertical output component 3 extends from the upper flange 5, a first sealing triangular plate 12 is installed on the upper part of the vertical output component 3, a second annular groove 14 is fitted on the bottom of the first sealing triangular plate 12, and a sealing cover 9 is clamped and installed on the bottom of the second annular groove 14; a limiting groove 7 is opened at the center of the upper end of the upper flange 5, a skeleton oil seal 8 is embedded and installed at the center of the limiting groove 7, and a transverse output component 2 for power output of the vertical output component 3 is installed inside the box body 1.

[0023] Preferably, several groups of reinforcing plates 6 are installed on the outer arc surface of the upper flange 5, a hole is passed through the center of the upper flange 5, the vertical output component 3 extends from the inside of the hole, and the skeleton oil seal 8 is embedded in the upper opening position of the hole. The reinforcing plates 6 are installed on the outside of the upper flange 5 to reinforce the upper flange 5, so that the output of the vertical output component 3 is more stable. At the same time, the embedded skeleton oil seal 8 can block grease and prevent grease from entering the interior to absorb dust and wear the oil seal.

[0024] Furthermore, a plurality of groups of first annular grooves 10 are provided on the upper surface of the sealing cover 9, and a limiting sleeve 11 is fixedly installed on the lower surface of the sealing cover 9. The limiting sleeve 11 is sealingly plugged and installed with the skeleton oil seal 8. The first annular grooves 10 provided on the upper surface of the sealing cover 9 can be plugged with the second annular grooves 14 provided at the bottom of the sealing plug plate 13 to form a labyrinth sealing structure, thereby preventing dust from entering to the greatest extent. The limiting sleeve 11 at the bottom of the sealing cover 9 enables the sealing cover 9 to be sealingly plugged with the skeleton oil seal 8, thereby further blocking the influence of foreign matter entering the oil seal, thereby greatly improving the service life of the device.

[0025] Furthermore, a plurality of groups of second annular grooves 14 are provided on the lower surface of the sealing plug plate 13 corresponding to each group of first annular grooves 10. The first annular grooves 10 and the second annular grooves 14 are installed in an interlaced manner, and the first annular grooves 10 and the second annular grooves 14 do not contact each other. When the sealing cover 9 and the sealing plug plate 13 are plugged in, the first annular grooves 10 and the second annular grooves 14 do not contact each other, so that the gas flow in the gap is disordered, thereby reducing the entry of dust.

[0026] It is worth mentioning that a sealing plate 16 is fixedly installed on the upper surface of the second sealing triangle plate 15, and a socket 17 is fixedly installed through the center of the first sealing triangle plate 12 and the second sealing triangle plate 15. A plurality of connecting through holes 18 are correspondingly opened through the first sealing triangle plate 12 and the second sealing triangle plate 15. The sealing plate 16 installed on the upper surface of the second sealing triangle plate 15 can protect the second sealing triangle plate 15, and reduce the damage to the second sealing triangle plate 15 by external force when the second sealing triangle plate 15 is fixed. The opened socket 17 enables the vertical output component 3 to be stably inserted to complete the limit, so as to better ensure the connection between the sealing plug plate 13, the sealing cover 9 and the skeleton oil seal 8.

[0027] Specifically, the top of the vertical output component 3 is inserted from the inside of the socket 17, and the outer surface of the vertical output component 3 is tightly fitted against the inner wall of the socket 17 for installation. The vertical output component 3 is plugged into the inner wall of the socket 17, so that the second sealing triangle plate 15 and the first sealing triangle plate 12 are more stably positioned, ensuring the coordination between the components and reducing the influence of dust and grease on the oil seal.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The sealing structure of the biomass pellet extruder is characterized by: The invention comprises a box body (1), a sealing plug plate (13) and a second sealing triangular plate (15); a vertical output component (3) for limiting the sealing structure is vertically installed inside the box body (1); a box cover (4) is bolted to the top of the box body (1); an upper flange (5) is bolted to the upper surface of the box cover (4) at a position corresponding to the extension of the vertical output component (3); the vertical output component (3) extends from the inside of the upper flange (5); a first sealing triangular plate (12) is installed on the upper part of the vertical output component (3); a second annular groove (14) is fitted on the bottom of the first sealing triangular plate (12); and a sealing cover (9) is clamped and installed on the bottom of the second annular groove (14); A limiting groove (7) is provided at the center of the upper end of the upper flange (5), and a skeleton oil seal (8) is embedded and installed at the center of the limiting groove (7).

2. The sealing structure of the biomass pellet extruder according to claim 1, characterized in that: The outer arc surface of the upper flange (5) is provided with a plurality of groups of reinforcing plates (6) in equal arcs, a hole is passed through the center of the upper flange (5), the vertical output assembly (3) extends from the inside of the hole, and the skeleton oil seal (8) is embedded in the upper opening of the hole.

3. The sealing structure of the biomass pellet extruder according to claim 2, characterized in that: The upper surface of the sealing cover (9) is provided with a plurality of groups of first annular grooves (10), and the lower surface of the sealing cover (9) is fixedly mounted with a limiting sleeve (11), which is sealed and plugged with the skeleton oil seal (8).

4. The sealing structure of the biomass pellet extruder according to claim 3, characterized in that: A plurality of groups of second annular grooves (14) are provided on the lower surface of the sealing plug plate (13) corresponding to each group of first annular grooves (10); the first annular grooves (10) and the second annular grooves (14) are installed in an interlaced manner, and the first annular grooves (10) and the second annular grooves (14) are not in contact with each other.

5. The sealing structure of the biomass pellet extruder according to claim 4, characterized in that: A sealing plate (16) is fixedly mounted on the upper surface of the second sealing triangular plate (15); a plug hole (17) is fixedly mounted through the center of the first sealing triangular plate (12) and the second sealing triangular plate (15); and a plurality of groups of connecting through holes (18) are correspondingly opened through the first sealing triangular plate (12) and the second sealing triangular plate (15).

6. The sealing structure of the biomass pellet extruder according to claim 5, characterized in that: The top end of the vertical output component (3) is inserted into the inside of the plug hole (17), and the outer surface of the vertical output component (3) is tightly fitted into the inner wall of the plug hole (17).

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