Motor direct-driven biomass particle forming machine

Abstract

The utility model provides a biomass particle forming machine directly driven by a motor, which comprises a fixed support, a main body and a power supply, a pressing structure used for granulating is arranged above the main body, a feeding bin is arranged above the pressing structure, a feeding port is arranged on the feeding bin, a scraping structure is arranged between the pressing structure and a material cover, a discharging port is arranged on the material cover, and the power supply is connected with the power supply. The main body is connected to the support. A main body comprises a low-speed permanent magnet motor, an output shaft which is vertically arranged and is coaxially connected with the low-speed permanent magnet motor, a granulator main shaft which is coaxially fixed at the top end of the output shaft, and a tapered roller bearing and a double-row self-aligning roller bearing which are arranged on the outer side of the granulator main shaft in a sleeving manner, and the tapered roller bearing and the double-row self-aligning roller bearing are arranged in a bearing chamber; and the bearing chamber is fixed on the bracket. According to the biomass particle forming machine directly driven by the motor, the technical problem of low overall efficiency caused by the fact that an existing particle forming machine is provided with a speed reducer is solved, the biomass particle forming machine is convenient and fast to install, and cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pelletizers, and in particular relates to a biomass pellet forming machine directly driven by a motor. Background Art

[0002] Biomass pellet machines use solid waste such as corn stalks, wheat straw, rice straw, peanut shells, corn cobs, cotton stalks, soybean stalks, husks, weeds, branches, leaves, sawdust, bark and other solid wastes of crops as raw materials. After crushing and drying, they are pressed into small stick-shaped solid pellet fuels. The density of the raw materials is generally around 0.6-0.8, and the density of the pellets after molding is greater than 1.1, which is very convenient for transportation and storage. At present, the roller pellet molding machine is commonly used in biomass compression molding equipment.

[0003] The roller pellet forming machine includes: a main shaft, a roller, a roller shaft, and a ring die. The main shaft is provided with a first gear, the roller shaft is provided with a second gear, the ring die is provided with a hole, the ring die is fixed on the frame, and the roller rolls inside the ring die. However, the roller pellet forming machine is generally provided with a speed reduction mechanism, which makes the overall structure complicated, the installation is inconvenient, and the cost is increased.

[0004] Therefore, this scheme proposes a motor-direct-driven biomass pellet forming machine, which removes the reducer and has good application prospects. Utility Model Content

[0005] The utility model aims to provide a biomass pellet forming machine directly driven by a motor, which solves the technical problem of how to avoid the low overall efficiency of the existing pellet forming machine due to the reducer, is easy to install and reduces costs.

[0006] A motor-driven biomass pellet forming machine comprises a fixed bracket, a main body and a power supply. A pressing structure for pelletizing is arranged above the main body, a feed bin is arranged above the pressing structure, a feed port is arranged on the feed bin, a scraping structure is arranged between the pressing structure and a material cover, a discharge port is arranged on the material cover, and the main body is connected to the bracket.

[0007] The main body includes a low-speed permanent magnet motor, an output shaft placed vertically and coaxially connected to the low-speed permanent magnet motor, a granulator main shaft coaxially fixed to the top of the output shaft, a tapered roller bearing and a double-row spherical roller bearing sleeved on the outside of the granulator main shaft, the tapered roller bearing and the double-row spherical roller bearing are arranged in a bearing chamber, and the bearing chamber is fixed on the bracket.

[0008] The top end of the granulator main shaft and the pressing structure;

[0009] The pressing structure includes a horizontally placed fixed plate, pressing wheel seats respectively arranged on both sides above the fixed plate, a pressing wheel rotatably connected to the pressing wheel seat, and a ring die coaxially arranged above the main shaft of the pelletizer, a gap is arranged between the outer side of the pressing wheel and the inner side of the ring die, the bottom surface of the ring die is connected to the upper end surface of the bearing chamber, and the ring die is provided with pressing holes distributed in an array.

[0010] The output shaft is provided with external splines.

[0011] The granulator main shaft is provided with an internal spline.

[0012] A labyrinth groove is arranged on the lower side of the main shaft of the granulator, and a labyrinth ring is arranged in the labyrinth groove to form a sealing design.

[0013] The scraper structure includes a rotating gear ring arranged inside the material cover, a pinion gear meshingly connected to the outer side of the rotating gear ring, a material-sliding motor coaxially connected to the pinion gear, and a material-sliding tooth fixed on the rotating gear ring, wherein the material-sliding tooth is arranged close to the discharge port and the outer side of the ring mold.

[0014] A connecting platform is arranged above the pressing wheel, an oil separator block is arranged on the connecting platform, and the oil separator block is connected to the pressing wheel through an oil path.

[0015] The positive effects of the utility model are as follows:

[0016] (1) The biomass pellet machine provided by this solution is directly driven by a low-speed permanent magnet motor, without a reducer, pulley, gear or other reduction devices, eliminating the need for complex mechanical structures, making transportation and installation convenient and reducing costs.

[0017] (2) Due to the direct drive of the low-speed permanent magnet motor, the fixed plate drives the stirring shaft to rotate more efficiently. The stirring shaft is provided with a cutter, which helps to chop large-sized materials and facilitate particle discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the biomass pelletizing machine in the utility model.

[0019] Among them, the accompanying drawings are marked as: 1. low-speed permanent magnet motor; 2. output shaft; 3. tapered roller bearing; 4. double-row spherical roller bearing; 5. granulator main shaft; 6. labyrinth ring; 7. pressure wheel seat; 8. pressure wheel; 9. ring die; 10. feeder tooth; 11. rotary gear ring; 12. pinion; 13. feeder motor; 14. feed bin; 15. material cover; 16. bearing chamber. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0021] See also Figure 1 A motor-driven biomass pellet forming machine includes a fixed bracket, a main body, and a power supply. A pressing structure for pelletizing is arranged above the main body, a feed bin 14 is arranged above the pressing structure, a feed port is arranged on the feed bin 14, a scraping structure is arranged between the pressing structure and a material cover 15, a discharge port is arranged on the material cover 15, and the main body is connected to the bracket.

[0022] The main body includes a low-speed permanent magnet motor 1, an output shaft 2 placed vertically and coaxially connected to the low-speed permanent magnet motor 1, a granulator main shaft 5 coaxially fixed to the top of the output shaft 2, a tapered roller bearing 3 and a double-row spherical roller bearing 4 sleeved on the outside of the granulator main shaft 5, the tapered roller bearing 3 and the double-row spherical roller bearing 4 are arranged in a bearing chamber 16, and the bearing chamber 16 is fixed on the bracket.

[0023] The top of the granulator main shaft 5 and the pressing structure;

[0024] The pressing structure includes a horizontally placed fixed plate, pressing wheel seats 7 respectively arranged on both sides above the fixed plate, a pressing wheel 8 rotatably connected to the pressing wheel seat 7, and a ring die 9 coaxially arranged above the main shaft 5 of the pelletizer. A gap is set between the outer side of the pressing wheel 8 and the inner side of the ring die 9. The bottom surface of the ring die 9 is connected to the upper end surface of the bearing chamber 16, and the ring die 9 is provided with array-distributed pressing holes.

[0025] The output shaft 2 is provided with external splines.

[0026] The granulator main shaft 5 is provided with an internal spline.

[0027] A labyrinth groove is arranged on the lower side of the granulator main shaft 5, and a labyrinth ring 6 is arranged in the labyrinth groove to form a sealing design.

[0028] A rotating gear ring 11 is provided inside the material cover 15, and the rotating gear ring 11 is meshed with a pinion 12, and the pinion 12 is coaxially driven with a material-discharging motor 13. A material-discharging tooth 10 is fixed on the rotating gear ring 11, and the material-discharging tooth 10 is arranged near the discharge port.

[0029] Preferably, a stirring shaft is arranged on the fixed plate, the stirring shaft is arranged coaxially with the granulator main shaft 5, and a cutter is arranged on the stirring shaft. Driven by the rotation of the granulator main shaft 5, the fixed plate drives the stirring shaft and the cutter to rotate, which helps to chop large-sized materials and facilitate pelleting. For the purpose of simplifying the design, the structure of the cutter is a prior art, which has been clearly explained in the text part, and no drawings are provided here, so it is specially explained.

[0030] A connecting platform is arranged above the pressing wheel 8 , and an oil separator block is arranged on the connecting platform. The oil separator block is connected to the pressing wheel 8 through an oil path.

[0031] The specific working process of this utility model:

[0032] In the biomass pellet machine described in this patent, the output shaft 2 of the low-speed permanent magnet motor 1 is an external spline, and the pelletizer main shaft 5 is an internal spline, and the external spline and the internal spline are connected in a matching manner; the bearing chamber 16 is provided with a double-row spherical roller bearing 4 that can bear huge loads and a paired tapered roller bearing 3, and the pelletizer main shaft 5 is provided with a labyrinth groove and a labyrinth ring 6 to form a sealing design, which seals the double-row spherical roller bearing 4 and the paired tapered roller bearing 3 in the bearing chamber 16 to prevent debris and dust generated by granulation from entering the bearing chamber 16, thereby avoiding affecting the service life of the bearing.

[0033] A pressing wheel seat 7 is provided on the upper part of the pelletizer main shaft 5. The pressing wheel 8 is fixed in the pressing wheel seat 7 and rotates with the pelletizer main shaft 5. The material enters the ring die 9 through the feed bin 14. The ring die 9 is provided with evenly arranged small holes. The material is squeezed by the rotation of the pressing wheel 8 and then extruded from the small holes of the ring die 9 to form biomass pellets.

[0034] A material cover 15 is arranged on the outside of the ring die 9, and a rotary ring gear 11 is arranged inside the material cover 15. A material-discharging motor 13 drives a pinion 12 to drive the rotation of the rotary ring gear 11. A material-discharging tooth 10 is fixed on the rotary ring gear 11 (the structure of the material-discharging tooth 10 also belongs to the prior art, and is not described in detail here for the purpose of simplifying the design) to deliver the particles to the discharge port.

[0035] Technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A motor-driven biomass pellet forming machine, comprising a fixed bracket, a main body, and a power supply, characterized in that: A pressing structure for granulation is arranged above the main body, a feed bin (14) is arranged above the pressing structure, a feed port is arranged on the feed bin (14), a scraping structure is arranged between the pressing structure and the material cover (15), a discharge port is arranged on the material cover (15), and the main body is connected to the bracket; The main body comprises a low-speed permanent magnet motor (1), an output shaft (2) placed vertically and coaxially connected to the low-speed permanent magnet motor (1), a granulator main shaft (5) coaxially fixed to the top of the output shaft (2), a tapered roller bearing (3) and a double-row spherical roller bearing (4) sleeved on the outside of the granulator main shaft (5), the tapered roller bearing (3) and the double-row spherical roller bearing (4) are arranged in a bearing chamber (16), and the bearing chamber (16) is fixed on the bracket.

2. The motor-driven biomass pellet forming machine according to claim 1, characterized in that: The top end of the granulator main shaft (5) and the pressing structure; The pressing structure comprises a horizontally placed fixed plate, a pressing wheel seat (7) respectively arranged on both sides above the fixed plate, a pressing wheel (8) rotatably connected to the pressing wheel seat (7), and a ring die (9) coaxially arranged above the main shaft (5) of the granulator, a gap is arranged between the outer side of the pressing wheel (8) and the inner side of the ring die (9), the bottom surface of the ring die (9) is connected to the upper end surface of the bearing chamber (16), and the ring die (9) is provided with pressing holes distributed in an array.

3. The motor-driven biomass pellet forming machine according to claim 1, characterized in that: The output shaft (2) is provided with an external spline.

4. The motor-driven biomass pellet forming machine according to claim 1, characterized in that: The granulator main shaft (5) is provided with an internal spline.

5. The motor-driven biomass pellet forming machine according to claim 1, characterized in that: A labyrinth groove is provided on the lower side of the granulator main shaft (5), and a labyrinth ring (6) is provided in the labyrinth groove to form a sealing design.

6. The motor-driven biomass pellet forming machine according to claim 1, characterized in that: The scraping structure comprises a rotating gear ring (11) arranged inside the material cover (15), a pinion gear (12) meshingly connected to the outside of the rotating gear ring (11), a material-sliding motor (13) coaxially connected to the pinion gear (12), and a material-sliding tooth (10) fixed to the rotating gear ring (11), wherein the material-sliding tooth (10) is arranged close to the discharge port and the outer side surface of the ring die (9).

7. The motor-driven biomass pellet forming machine according to claim 2, characterized in that: A connecting platform is arranged above the two pressing wheels (8), an oil separator block is arranged on the connecting platform, and the oil separator block is connected to the pressing wheels (8) through an oil path.

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