Main shaft transmission structure of biomass particle extruder

Abstract

The utility model discloses a main shaft transmission structure of a biomass particle extruder, which comprises a box body, a transverse output component is transversely mounted in the box body, and a vertical output component is vertically mounted on the output side of the transverse output component; the vertical output assembly comprises a first output shaft which is rotationally installed, two sets of simplified bearings are symmetrically installed on the upper side and the lower side of the first output shaft in a sleeving mode, the simplified bearing on the lower side is fixedly installed in the box body, and a large gear is installed on the portion, located between the two sets of simplified bearings, of the outer arc face of the first output shaft in a sleeving mode. Stable rotation of the first output shaft is guaranteed through simplified bearings installed on the two sides of the first output shaft, the first output shaft and the second output shaft are connected through a spline housing, torque conduction is more stable, and the position, located in an upper flange, of the second output shaft is guaranteed to be stable through a positioning sleeve installed outside the second output shaft in a sleeving mode and barrel shafts installed on the upper side and the lower side of the positioning sleeve. And meanwhile, the stability of rotation of the second output shaft in the upper flange can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of biomass fuel extrusion molding equipment, in particular to a main shaft transmission structure of a biomass particle extruder. Background Art

[0002] Biomass fuel refers to the burning of biomass materials as fuel, generally mainly agricultural and forestry waste (such as straw, sawdust, bagasse, rice bran, etc.). Under current national policies and environmental protection standards, direct combustion is considered a highly polluting fuel and is not allowed to be used directly. These raw materials need to be crushed, mixed, extruded, dried and other processes to be made into various shaped particles so that they can become a new type of clean fuel for direct combustion.

[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 use a motor and a rotating shaft to achieve power output, which results in poor power output stability, and cannot guarantee efficiency during pellet extrusion, which is prone to blockage. Therefore, a main shaft transmission structure for a biomass pellet extruder is now needed. Utility Model Content

[0005] The purpose of the utility model is to provide a main shaft transmission structure of a biomass pellet extruder, by providing a rotating buckle and a limit plate for the rotatable surrounding tube to limit the force on the rotating surrounding tube, thereby improving its safety in use and solving the technical problems mentioned in the background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a main shaft transmission structure of a biomass pellet extruder comprises a box body, a lateral output assembly is horizontally installed inside the box body, and a vertical output assembly is vertically installed on the output side of the lateral output assembly;

[0007] The vertical output assembly comprises a first output shaft which is rotatably mounted, two sets of simplified bearings are symmetrically sleeved and mounted on the upper and lower sides of the first output shaft, the simplified bearing on the lower side is fixedly mounted inside the box, and a large gear is sleeved and mounted on the outer arc surface of the first output shaft in the middle of the two sets of simplified bearings;

[0008] The top end of the simplified bearing is provided with a second output shaft via a spline sleeve.

[0009] Preferably, a distance ring is sleeved and installed on the outer arc surface of the first output shaft between the upper simplified bearing and the large gear, and an adjusting ring is fitted on the upper end surface of the upper simplified bearing.

[0010] Preferably, a positioning sleeve is sleeved and installed in the middle of the second output shaft, and two groups of barrel shafts are symmetrically sleeved and installed on the outer arc surface of the second output shaft on the upper and lower sides of the positioning sleeve, and the two groups of barrel shafts are installed in contact with the surface of the positioning sleeve.

[0011] Preferably, a box cover is sealed and plugged installed on the upper end of the box body, an upper flange is bolted and installed on the top end of the box cover, and the second output shaft passes through the center of the upper flange.

[0012] Preferably, the outer arc surfaces of the two groups of barrel shafts are installed in contact with the inner side of the central through hole of the upper flange, and the second output shaft is provided with a seal at the top end thereof.

[0013] Preferably, a groove is provided on the upper end surface of the upper flange, and the sealing member is rotatably installed inside the groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The simplified bearings installed on both sides of the first output shaft ensure stable rotation of the first output shaft, and the first output shaft is connected to the second output shaft by a spline sleeve, so that the torque transmission is more stable. The positioning sleeve installed on the outside of the second output shaft and the barrel shaft installed on the upper and lower sides of the positioning sleeve ensure the stability of the position of the second output shaft inside the upper flange, and also ensure the stability of the rotation of the second output shaft inside the upper flange. The seal installed on the top of the second output shaft seals the center hole of the upper flange, so that dust and oil cannot enter the device during the overall use of the device, making the output of the second output shaft of the device safer and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the disassembly of the large overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the large gear installation structure of the utility model;

[0019] Figure 4This is a schematic diagram of the installation structure of the positioning sleeve of the utility model;

[0020] Figure 5 This is a schematic diagram of the overall structure of the vertical output component of the utility model.

[0021] In the figure: 1. Box body; 2. Horizontal output assembly; 3. Vertical output assembly; 4. First output shaft; 5. Limit sleeve; 6. Simplified bearing; 7. Large gear; 8. Distance ring; 9. Adjusting ring; 10. Spline sleeve; 11. Second output shaft; 12. Positioning sleeve; 13. Bucket shaft; 14. Seal; 15. Box cover; 16. Upper flange. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model provides: a main shaft transmission structure of a biomass particle extruder, such as Figure 1-Figure 5 As shown, it includes a box body 1, a horizontal output component 2 is horizontally installed inside the box body 1, and a vertical output component 3 is vertically installed on the output side of the horizontal output component 2; the vertical output component 3 includes a rotatably installed first output shaft 4, and two groups of simplified bearings 6 are symmetrically sleeved and installed on the upper and lower sides of the first output shaft 4, the lower simplified bearing 6 is fixedly installed inside the box body 1, and the outer arc surface of the first output shaft 4 is located in the middle of the two groups of simplified bearings 6 and is sleeved and installed with a large gear 7; the top of the simplified bearing 6 is installed with a second output shaft 11 through a spline sleeve 10.

[0024] Preferably, a distance ring 8 is sleeved and installed on the outer arc surface of the first output shaft 4 between the upper simplified bearing 6 and the large gear 7, and an adjustment ring 9 is fitted on the upper end surface of the upper simplified bearing 6. The simplified bearings 6 installed on both sides of the first output shaft 4 ensure the rotation of the first output shaft 4 after being subjected to force, and because the simplified bearings 6 are fixedly installed inside the housing 1, the bottom simplified bearing 6 can limit the first output shaft 4 more stably, and the limiting sleeve 5 sleeved and installed on the outer arc surface of the first output shaft 4 limits the position of the lower simplified bearing 6, so that the simplified bearing 6 will not contact the large gear 7, thereby reducing the friction when the large gear 7 is rotated under force, and improving the force output efficiency. The distance ring 8 sleeved and installed between the large gear 7 and the upper simplified bearing 6 can also prevent the simplified bearing 6 from contacting the large gear 7, thereby improving the force of the large gear 7 to rotate.

[0025] Furthermore, a positioning sleeve 12 is installed in the middle of the second output shaft 11, and two groups of barrel shafts 13 are symmetrically installed on the upper and lower sides of the positioning sleeve 12 on the outer arc surface of the second output shaft 11, and the two groups of barrel shafts 13 are installed in contact with the surface of the positioning sleeve 12. The first output shaft 4 and the second output shaft 11 are connected by a spline sleeve 10, and the spline sleeve 10 itself is a relatively mature technology, and its main purpose is to transmit torque, so it is not repeated here. The positioning sleeve 12 installed in the middle of the second output shaft 11 is used to limit the two groups of barrel shafts 13. Its purpose is to make the rotation of the second output shaft 11 more stable through the cooperation of the barrel shaft 13 and the upper flange 16, to ensure the output efficiency of the second output shaft 11, to minimize the shaking during the rotation process, to reduce the friction during the output of the second output shaft 11, and to improve the stability of the output of the second output shaft 11.

[0026] Furthermore, a box cover 15 is sealed and plugged installed on the upper end of the box body 1, and an upper flange 16 is bolted to the top of the box cover 15. The second output shaft 11 passes through the center of the upper flange 16. The box cover 15 seals the box body 1 to protect the horizontal output component 2 and the vertical output component 3 installed inside the box body 1, so that the horizontal force can be stably transmitted as a vertical force. The upper flange 16 bolted to the upper surface of the box cover 15 can limit the output position of the second output shaft 11 and protect the second output shaft 11. At the same time, it can also cooperate with the seal 14 to prevent dust and grease from entering the interior of the device, resulting in unstable output of the second output shaft 11.

[0027] It is worth mentioning that the outer arc surfaces of the two sets of barrel shafts 13 are installed in contact with the inner through hole of the upper flange 16, and the second shaft 11 is installed with a seal 14 on the top of the second shaft 11. The barrel shaft 13 is in contact with the inner wall of the upper flange 16 to limit the second shaft 11, and the use position of the second shaft 11 is further limited by the barrel shaft 13 being in contact with the inner wall of the upper flange 16.

[0028] Specifically, a groove is provided on the upper end surface of the upper flange 16 , and the seal 14 is rotatably installed inside the groove. The groove provided on the upper end surface of the upper flange 16 prevents the seal 14 from being completely exposed, so that the seal 14 can stably seal the opening of the upper flange 16 .

[0029] 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 main shaft transmission structure of the biomass pellet extruder is characterized by: It comprises a box body (1), a horizontal output assembly (2) is horizontally mounted inside the box body (1), and a vertical output assembly (3) is vertically mounted on the output side of the horizontal output assembly (2); The vertical output assembly (3) comprises a first output shaft (4) which is rotatably mounted, two sets of simplified bearings (6) being symmetrically sleeved and mounted on the upper and lower sides of the first output shaft (4), the simplified bearing (6) on the lower side being fixedly mounted inside the housing (1), and a large gear (7) being sleeved and mounted on the outer arc surface of the first output shaft (4) in the middle of the two sets of simplified bearings (6); A second output shaft (11) is mounted on the top end of the simplified bearing (6) via a spline sleeve (10).

2. The main shaft transmission structure of the biomass pellet extruder according to claim 1 is characterized in that: A distance ring (8) is sleeved and installed on the outer arc surface of the first output shaft (4) between the simplified bearing (6) on the upper side and the large gear (7), and an adjustment ring (9) is fitted on the upper end surface of the simplified bearing (6) on the upper side.

3. The main shaft transmission structure of the biomass pellet extruder according to claim 2 is characterized in that: A positioning sleeve (12) is sleeved and installed in the middle of the second output shaft (11), and two groups of barrel shafts (13) are symmetrically sleeved and installed on the outer arc surface of the second output shaft (11) located on the upper and lower sides of the positioning sleeve (12), and the two groups of barrel shafts (13) are installed in contact with the surface of the positioning sleeve (12).

4. The main shaft transmission structure of the biomass pellet extruder according to claim 3 is characterized in that: A box cover (15) is installed at the upper end of the box body (1) in a sealed manner, and an upper flange (16) is installed at the top end of the box cover (15) by bolting, and the second output shaft (11) passes through the center of the upper flange (16).

5. The main shaft transmission structure of the biomass pellet extruder according to claim 4 is characterized in that: The outer arc surfaces of the two sets of barrel shafts (13) are mounted in contact with the inner side of the central through hole of the upper flange (16), and the second outlet shaft (11) is provided with a sealing member (14) at the top end thereof.

6. The main shaft transmission structure of the biomass pellet extruder according to claim 5, characterized in that: The upper end surface of the upper flange (16) is provided with a groove, and the sealing member (14) is rotatably mounted inside the groove.

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