Wood chip pulverizer

Abstract

The utility model discloses a sawdust pulverizer which comprises a base, a pulverizing box is arranged on the base, a pulverizing cavity is formed in the pulverizing box, a feeding port is formed in the top of the pulverizing box, mounting ports are formed in the two sides of the pulverizing cavity, a rotating shaft is rotationally arranged in the middle of the pulverizing box, and a hammer carrier plate is arranged on the rotating shaft. Materials are subjected to corresponding coarse crushing and micro crushing by adjusting the gaps between the hammers and the sieve pressing plate, the gaps between the hammers and the sieve pressing plate are adjusted through the two sets of different pin shaft holes, the materials are subjected to coarse crushing and micro crushing according to actual needs, adjustment is convenient and rapid, the crushing efficiency is high, and the crushing efficiency is high. The device is simple in structure and wide in applicability, after materials are crushed, the motor is started to drive the spiral shaft to rotate, the crushed materials are conveyed to the discharging barrel, the materials are collected for use through an external pipeline, meanwhile, the dust remover is used for removing dust of the materials in the discharging box, and workers are prevented from being affected by dust.

Description

Technical Field

[0001] The utility model relates to the technical field of wood chip crushing devices, in particular to a wood chip crusher. Background Art

[0002] Biomass pellets are cold-formed and compacted by crushing biomass straw, forestry waste and other raw materials under normal temperature conditions using rollers and ring dies. In the production of biomass pellets, wood chips need to be crushed. The crusher can crush various granular feed raw materials, such as corn, sorghum, wheat, crushed cakes and other materials. It is widely used in the crushing of granular raw materials in various large and medium-sized livestock and poultry aquatic feed factories, alcohol factories, lemon factories, food factories, and oil factories.

[0003] However, the existing sawdust crushing device cannot adjust the particle size of the crushed sawdust according to actual needs during crushing, and when the crushed sawdust is discharged, dust will overflow, causing impact on the environment.

[0004] Therefore, it is necessary to provide a wood chip crusher to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a wood chip crusher to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wood chip crusher comprises a base, a crushing box is arranged on the base, a crushing chamber is provided in the crushing box, a feeding port is provided on the top of the crushing box, mounting ports are provided on both sides of the crushing chamber, a rotating shaft is rotatably arranged in the middle of the crushing box, a hammer frame plate is arranged on the rotating shaft, the hammer frame plate is located in the middle of the crushing chamber, one end of the rotating shaft passes through the other side wall of the crushing box and extends to the outside, a connecting seat is arranged on the base, a servo motor is fixedly arranged on the connecting seat, the output end of the servo motor is transmission-connected to the end of the rotating shaft through a coupling, and two side walls of the base are provided A fixed shaft is provided, a screen frame is rotatably arranged on the fixed shaft, a screen pressing plate is provided on the inner side wall of the screen frame, opening and closing doors are rotatably arranged on the two side walls of the screen frame, a connecting hole is provided in the middle of the hammer frame plate, a plurality of slots are provided on the hammer frame plate, four first pin holes and four second pin holes are evenly provided on the side wall of the hammer frame plate, the diameter of the circle where the centers of the four first pin holes are located is greater than the diameter of the circle where the centers of the four second pin holes are located, four hammer pieces are provided in the slot, mounting holes are provided on the hammer pieces, a feeding hole is provided in the middle of the bottom of the crushing box, a filter screen is provided above the feeding hole, and a discharging mechanism is provided at the bottom of the base.

[0007] As an optimal technical solution of the utility model, a bracket is arranged at the bottom of the discharging mechanism, and the discharging mechanism includes a discharging box, a spiral shaft, a cover plate and a motor. The cover plate is arranged on the top of the discharging box, and a feed hole and a dust removal hole are opened on the cover plate. The feed hole is opposite to the discharge hole, and a discharge pipe is arranged at the bottom of the discharge hole, which is connected with the feed hole and is sealed. The spiral shaft is rotatably arranged in the discharging box, one end of the spiral shaft passes through the side wall of the discharging box and extends to the outside, the motor is arranged on the side wall of the discharging box, the output end of the motor is transmission-connected with the end extending from the spiral shaft, a dust removal box is arranged on the cover plate, the bottom of the dust removal box is connected with the dust removal hole, the upper end of the dust removal box is connected with an external dust collector through a pipeline, and a discharging barrel is arranged at the bottom of one end of the discharging box close to the motor, and the discharging barrel is connected with the external discharging pipe.

[0008] As a preferred technical solution of the utility model, four pairs of first guide plates and four pairs of second guide plates are evenly arranged between the two side walls of the cutting groove, the four pairs of first guide plates are respectively located on both sides of the four first pin shaft holes, the four pairs of second guide plates are respectively located on both sides of the four second pin shaft holes, the four first pin shaft holes are evenly distributed with the connecting hole as the center, and the four second pin shaft holes are evenly distributed with the connecting hole as the center.

[0009] As a preferred technical solution of the utility model, the side wall of the crushing box is provided with a plurality of lock buckles, and the surface of the opening and closing door is provided with two handles.

[0010] As a preferred technical solution of the utility model, the screen frame structure is arc-shaped, and the screen frame surface is in the shape of a filter screen, the screen pressing plate structure is arc-shaped and its surface is in the shape of a filter screen, and the two screen pressing plates surround the hammer frame plate in the middle.

[0011] As a preferred technical solution of the utility model, a protective cover is arranged on the base, and the protective cover covers the coupling.

[0012] As a preferred technical solution of the utility model, one end of the rotating shaft extends out of the crushing box, and the base is provided with a bearing seat, and a bearing is provided in the bearing seat and is rotatably connected to one end of the rotating shaft.

[0013] As a preferred technical solution of the utility model, a lower material bin is arranged on the top of the crushing box, and the bottom of the lower material bin is connected to the feed port.

[0014] As a preferred technical solution of the utility model, a plurality of legs are arranged at the bottom of the base.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model discloses a wood chip crusher, which performs corresponding coarse crushing and fine crushing on materials by adjusting the gap between the hammer and the screen pressing plate. When performing coarse crushing, the mounting holes of the four hammers are respectively aligned with the four second pin shaft holes, and the hammers are fixed by the pin shaft passing through the second pin shaft holes and the mounting holes. At the same time, the hammers are inserted into the cutting grooves along a pair of second guide plates, and the second guide plates limit the hammers for easy installation. Since the gap between the end of the hammer and the screen pressing plate is relatively large, the materials are coarsely crushed to obtain materials with larger particles. When performing fine crushing, the mounting holes of the four hammers are respectively aligned with the four first pin shaft holes, and the pin shaft passes through the first pin shaft holes and the mounting holes. The mounting hole fixes the hammer, and at the same time, the hammer is inserted into the cutting groove along a pair of first guide plates. The first guide plate limits the hammer for easy installation. Since the gap between the end of the hammer and the screen pressing plate is small, the material is finely crushed to obtain material with smaller particles. The gap between the hammer and the screen pressing plate is adjusted through two sets of different pin shaft holes. The material is coarsely crushed and finely crushed according to actual needs. The adjustment is convenient and fast, and the applicability is wide. After the material is crushed, the motor is started to drive the spiral shaft to rotate and transport the crushed material to the discharge barrel. The material is collected and used through an external pipeline. At the same time, the dust collector is used to remove dust from the material in the discharge box to prevent the staff from being affected by dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a sectional view of the overall structure of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the crushing box structure of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of the hammer installation of the utility model;

[0022] Figure 5 It is a three-dimensional schematic diagram of the hammer frame plate structure of the utility model;

[0023] Figure 6 This is a front view of the hammer frame plate structure of the utility model;

[0024] Figure 7 It is a three-dimensional schematic diagram of the discharge mechanism structure of the utility model.

[0025] In the figure: 1. base; 2. support leg; 3. crushing box; 31. crushing chamber; 32. feeding hole; 33. feeding port; 34. mounting port; 4. feeding bin; 5. hammer frame plate; 51. connecting hole; 52. cutting groove; 53. first pin shaft hole; 54. second pin shaft hole; 55. first guide plate; 56. second guide plate; 6. rotating shaft; 7. hammer; 71. mounting hole; 8. discharging mechanism; 81. discharging box; 82. spiral shaft; 83. cover plate; 831. feeding hole; 832. dust removal hole; 84. motor; 85. discharging barrel; 9. bracket; 10. fixed shaft; 11. screen frame; 12. screen pressing plate; 13. connecting seat; 14. servo motor; 15. dust removal box; 16. opening and closing door; 17. lock; 18. handle; 19. protective cover; 20. bearing seat. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described below with reference to the accompanying drawings. In the process, in order to ensure the clarity and convenience of the description, we may exaggerate the width of the lines or the size of the components in the drawings.

[0027] In addition, the terms used below are defined based on the functions of the present invention and may differ depending on the intention or custom of the user or operator. Therefore, these terms are defined based on the entire contents of this specification.

[0028] like Figures 1 to 3As shown, a wood chip crusher comprises a base 1 and a leg 2, wherein the leg 2 is provided in plurality, and the plurality of legs 2 are fixedly arranged at the bottom of the base 1 to support the base 1, and a crushing box 3 is arranged on the base 1, and a crushing cavity 31 is provided in the crushing box 3, and a feed port 33 is provided at the top of the crushing box 3, and a lower material bin 4 is arranged at the top of the crushing box 3, and the bottom of the lower material bin 4 is connected with the feed port 33 to facilitate material discharge, and installation ports 34 are provided on both sides of the crushing cavity 31, and the middle of the crushing box 3 is provided with a lower material bin 4. A rotating shaft 6 is rotatably provided, a hammer frame plate 5 is provided on the rotating shaft 6, and the hammer frame plate 5 is located in the middle of the crushing chamber 31. One end of the rotating shaft 6 extends out of the crushing box 3. The base 1 is provided with a bearing seat 20. A bearing is provided in the bearing seat 20 and is rotatably connected to one end of the rotating shaft 6. The other end of the rotating shaft 6 passes through the other side wall of the crushing box 3 and extends to the outside. A connecting seat 13 is provided on the base 1. A servo motor 14 is fixedly provided on the connecting seat 13. The output end of the servo motor 14 is connected to the servo motor 14 through a coupling. The end of the rotating shaft 6 is connected by transmission, and the hammer frame plate 5 is driven to rotate in the crushing chamber 31 by the servo motor 14. A protective cover 19 is provided on the base 1, and the protective cover 19 covers the coupling to play a protective role. Fixed shafts 10 are provided on both side walls of the base 1, and a screen frame 11 is rotatably provided on the fixed shaft 10. The structure of the screen frame 11 is arc-shaped, and the surface of the screen frame 11 is in the shape of a filter. The screen frame 11 is arranged in the crushing chamber 31 through the installation port 34, and a pressure screen plate is provided on the inner wall of the screen frame 11 12, the structure of the screen pressing plate 12 is arc-shaped and its surface is in the shape of a filter screen, the two screen pressing plates 12 surround the hammer frame plate 5 in the middle, and the opening and closing doors 16 are rotatably provided on the two side walls of the screen frame 11, and the opening and closing doors 16 completely close the installation opening 34 to prevent the crushed materials from flying out through the installation opening 34, and the side walls of the crushing box 3 are provided with multiple locks 17, and the locks 17 lock the opening and closing doors 16 to facilitate opening and closing the opening and closing doors 16, and the surface of the opening and closing doors 16 is provided with two handles 18 to facilitate pulling the opening and closing doors 16 to rotate.

[0029] like Figures 4 to 6As shown, a connecting hole 51 is provided in the middle of the hammer frame plate 5 to cooperate with the rotating shaft 6, a plurality of slots 52 are provided on the hammer frame plate 5, and four first pin holes 53 and four second pin holes 54 are evenly provided on the side wall of the hammer frame plate 5. The four first pin holes 53 are evenly distributed with the connecting hole 51 as the center, and the four second pin holes 54 are evenly distributed with the connecting hole 51 as the center. The diameter of the circle A where the centers of the four first pin holes 53 are located is greater than the diameter of the circle B where the centers of the four second pin holes 54 are located. The slots 52 on both sides are Four pairs of first guide plates 55 and four pairs of second guide plates 56 are evenly arranged between the walls. The four pairs of first guide plates 55 are respectively located on both sides of the four first pin shaft holes 53, and the four pairs of second guide plates 56 are respectively located on both sides of the four second pin shaft holes 54. Four hammer pieces 7 are arranged in the slot 52. The hammer pieces 7 are provided with mounting holes 71. The four hammer pieces 7 are respectively opposite to the four first pin shaft holes 53 or the four second pin shaft holes 54 through the mounting holes 71. When the mounting holes 71 of the four hammer pieces 7 are respectively opposite to the four first pin shaft holes 53 When the hammer 7 is fixed by passing the pin through the first pin hole 53 and the mounting hole 71, the hammer 7 is inserted into the slot 52 along a pair of first guide plates 55. The first guide plate 55 limits the position of the hammer 7 for easy installation. The gap between the end of the hammer 7 and the screen pressing plate 12 is used to crush the material. Since the gap between the end of the hammer 7 and the screen pressing plate 12 is small, the material is finely crushed to obtain a material with smaller particles. When the mounting holes 71 of the four hammers 7 are respectively opposite to the four second pin holes 54, the pins are passed through the second pin holes 54 and The mounting hole 71 fixes the hammer 7. At the same time, the hammer 7 is inserted into the cutting groove 52 along a pair of second guide plates 56. The second guide plate 56 limits the hammer 7 for easy installation. The gap between the end of the hammer 7 and the screen pressing plate 12 is used to crush the material. Since the gap between the end of the hammer 7 and the screen pressing plate 12 is large, the material is coarsely crushed to obtain material with larger particles. The gap between the hammer 7 and the screen pressing plate 12 is adjusted by two sets of different pin holes. The material is coarsely crushed and finely crushed according to actual needs. The adjustment is convenient and fast, and the applicability is wide.

[0030] like Figure 7As shown, a discharge hole 32 is provided at the middle position of the bottom of the crushing box 3, and a filter screen is provided above the discharge hole 32 to prevent the discharge of materials with larger particles, and a discharge mechanism 8 is provided at the bottom of the base 1, and a bracket 9 is provided at the bottom of the discharge mechanism 8 to support the discharge mechanism 8, and the discharge mechanism 8 includes a discharge box 81, a spiral shaft 82, a cover plate 83 and a motor 84, and the cover plate 83 is arranged on the top of the discharge box 81, and a feed hole 831 and a dust removal hole 832 are provided on the cover plate 83, and the feed hole 831 is opposite to the discharge hole 32, and a discharge pipe is provided at the bottom of the discharge hole 32 to communicate with the feed hole 831 and be sealed, and the spiral shaft 82 is rotatably arranged in the discharge box 81. 1, one end of the spiral shaft 82 passes through the side wall of the discharge box 81 and extends to the outside. The motor 84 is arranged on the side wall of the discharge box 81. The output end of the motor 84 is transmission-connected with the end of the spiral shaft 82 that extends out. The spiral shaft 82 is driven by the motor 84 to rotate to convey the material. A dust removal box 15 is arranged on the cover plate 83. The bottom of the dust removal box 15 is communicated with the dust removal hole 832. The upper end of the dust removal box 15 is connected with an external dust collector through a pipeline to remove dust from the crushed material to prevent the staff from being affected. A discharge barrel 85 is arranged at the bottom of one end of the discharge box 81 close to the motor 84. The discharge barrel 85 is communicated with the external discharge pipe to collect the crushed material for use.

[0031] The specific implementation method is as follows: the material to be crushed is fed into the crushing box 3 through the lower bin 4 and the feed port 33, the servo motor 14 is started to drive the hammer frame plate 5 and the hammer 7 to rotate, and the gap between the hammer 7 and the screen pressing plate 12 is adjusted to perform coarse crushing and fine crushing on the material accordingly. When coarse crushing is performed, the mounting holes 71 of the four hammer pieces 7 are respectively aligned with the four second pin holes 54, and the hammer pieces 7 are fixed by the pins passing through the second pin holes 54 and the mounting holes 71. At the same time, the hammer pieces 7 are inserted into the cutting grooves 52 along a pair of second guide plates 56, and the second guide plates 56 limit the hammer pieces 7 for easy installation. Since the gap between the end of the hammer piece 7 and the screen pressing plate 12 is large, the material is coarsely crushed to obtain material with larger particles. When fine crushing is performed, the mounting holes 71 of the four hammer pieces 7 are respectively aligned with the four first The pin hole 53 is facing each other, and the hammer 7 is fixed by passing the pin through the first pin hole 53 and the mounting hole 71. At the same time, the hammer 7 is inserted into the cutting groove 52 along a pair of first guide plates 55. The first guide plate 55 limits the hammer 7 for easy installation. Since the gap between the end of the hammer 7 and the screen pressing plate 12 is small, the material is finely crushed to obtain material with smaller particles. The gap between the hammer 7 and the screen pressing plate 12 is adjusted by two sets of different pin holes. The material is coarsely crushed and finely crushed according to actual needs. The adjustment is convenient and fast, and the applicability is wide. After the material is crushed, the motor 84 is started to drive the screw shaft 82 to rotate and transport the crushed material to the discharge barrel 85, and the material is collected and used through an external pipeline. At the same time, the dust collector is used to remove dust from the material in the discharge box 81 to prevent the staff from being affected by dust.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wood chip crusher, characterized in that: The invention comprises a base (1), wherein a crushing box (3) is arranged on the base (1), a crushing chamber (31) is provided in the crushing box (3), a feeding port (33) is provided on the top of the crushing box (3), and mounting ports (34) are provided on both sides of the crushing chamber (31), a rotating shaft (6) is rotatably arranged in the middle of the crushing box (3), a hammer frame plate (5) is arranged on the rotating shaft (6), and the hammer frame plate (5) is located in the middle of the crushing chamber (31), one end of the rotating shaft (6) passes through the other side wall of the crushing box (3) and extends to the outside, a connecting seat (13) is arranged on the connecting seat (13), a servo motor (14) is fixedly arranged on the connecting seat (13), and the output end of the servo motor (14) is transmission-connected to the end of the rotating shaft (6) through a coupling, and a fixed shaft (10) is arranged on both side walls of the base (1), and a rotating shaft (10) is arranged on the fixed shaft (10) A screen frame (11) is provided, a screen pressing plate (12) is provided on the inner side wall of the screen frame (11), opening and closing doors (16) are rotatably provided on the two side walls of the screen frame (11), a connecting hole (51) is provided in the middle of the hammer frame plate (5), a plurality of slots (52) are provided on the hammer frame plate (5), four first pin holes (53) and four second pin holes (54) are evenly provided on the side wall of the hammer frame plate (5), the diameter of the circle where the hole centers of the four first pin holes (53) are located is greater than the diameter of the circle where the hole centers of the four second pin holes (54) are located, four hammer pieces (7) are provided in the slots (52), and mounting holes (71) are provided on the hammer pieces (7), a material discharge hole (32) is provided in the middle of the bottom of the crushing box (3), a filter screen is provided above the material discharge hole (32), and a material discharge mechanism (8) is provided at the bottom of the base (1).

2. A wood chip crusher according to claim 1, characterized in that: A bracket (9) is arranged at the bottom of the discharging mechanism (8). The discharging mechanism (8) comprises a discharging box (81), a spiral shaft (82), a cover plate (83) and a motor (84). The cover plate (83) is arranged at the top of the discharging box (81). A feeding hole (831) and a dust removal hole (832) are opened on the cover plate (83). The feeding hole (831) is directly opposite to the discharge hole (32). A discharge pipe is arranged at the bottom of the discharge hole (32) and is connected to the feeding hole (831) and is sealed. The spiral shaft (82) is rotatably arranged in the discharging box (81). The spiral shaft (82) is rotatably arranged in the discharging box (81). One end of the shaft (82) passes through the side wall of the discharge box (81) and extends to the outside. The motor (84) is arranged on the side wall of the discharge box (81). The output end of the motor (84) is drivingly connected to the end of the spiral shaft (82) extending out. The cover plate (83) is provided with a dust removal box (15). The bottom of the dust removal box (15) is connected to the dust removal hole (832). The upper end of the dust removal box (15) is connected to an external dust collector through a pipeline. A discharge barrel (85) is arranged at the bottom of one end of the discharge box (81) close to the motor (84). The discharge barrel (85) is connected to an external discharge pipeline.

3. A wood chip crusher according to claim 1, characterized in that: Four pairs of first guide plates (55) and four pairs of second guide plates (56) are evenly arranged between the two side walls of the cutting groove (52); the four pairs of first guide plates (55) are respectively located on the two sides of the four first pin shaft holes (53); the four pairs of second guide plates (56) are respectively located on the two sides of the four second pin shaft holes (54); the four first pin shaft holes (53) are evenly distributed with the connecting hole (51) as the center; and the four second pin shaft holes (54) are evenly distributed with the connecting hole (51) as the center.

4. A wood chip crusher according to claim 1, characterized in that: The side wall of the crushing box (3) is provided with a plurality of lock buckles (17), and the surface of the opening and closing door (16) is provided with two handles (18).

5. The wood chip crusher according to claim 1, characterized in that: The screen frame (11) has an arc-shaped structure and a surface of the screen frame (11) is in the shape of a filter screen. The screen pressing plate (12) has an arc-shaped structure and a surface of the screen pressing plate (12) is in the shape of a filter screen. The two screen pressing plates (12) surround the hammer frame plate (5) in the middle.

6. The wood chip crusher according to claim 1, characterized in that: A protective cover (19) is provided on the base (1).

7. The wood chip crusher according to claim 1, characterized in that: One end of the rotating shaft (6) extends out of the crushing box (3); the base (1) is provided with a bearing seat (20); a bearing is provided in the bearing seat (20) and is rotatably connected to one end of the rotating shaft (6).

8. The wood chip crusher according to claim 1, characterized in that: A lower material bin (4) is provided on the top of the crushing box (3), and the bottom of the lower material bin (4) is connected to a feed port (33).

9. The wood chip crusher according to claim 1, characterized in that: A plurality of supporting legs (2) are arranged at the bottom of the base (1).

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