Wood fiber ultrafine crushing mechanism

Abstract

The utility model relates to the technical field of wood fiber processing equipment, in particular to a wood fiber superfine crushing mechanism which comprises an outer box, two primary crushing rollers are symmetrically and rotatably mounted in the outer box and close to the top, two secondary crushing rollers are symmetrically and rotatably mounted below the primary crushing rollers, a crushing mechanism is mounted below the secondary crushing rollers, and a crushing mechanism is mounted below the secondary crushing rollers. And two grinding rollers are symmetrically and rotationally mounted below the crushing mechanism. According to the ultrafine crushing mechanism for the wood fibers, the primary crushing roller, the secondary crushing roller, the crushing mechanism and the grinding roller are arranged in sequence, so that multi-stage crushing and crushing of the wood fibers are realized, the crushing effect of the wood fibers is greatly improved, and the wood fibers reach an ultrafine grade. The whole mechanism is compact in structure, easy to operate and suitable for large-scale ultrafine crushing treatment of wood fibers.

Description

Technical Field

[0001] The utility model relates to the technical field of wood fiber processing equipment, in particular to an ultra-fine grinding mechanism for wood fibers. Background Art

[0002] In the existing wood fiber processing equipment, although there are a variety of crushing and pulverizing equipment, these equipment usually face some common problems.

[0003] First, many traditional equipment cannot achieve efficient multi-stage crushing and pulverization of wood fibers, resulting in the processed fiber particle size not being fine enough to meet the needs of specific applications. Secondly, some equipment has defects in structural design, making it difficult to further refine wood fibers after primary crushing, affecting the subsequent pulverization effect. In view of this, we propose a wood fiber ultra-fine pulverization mechanism. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a wood fiber ultra-fine grinding mechanism.

[0005] The technical solution of the utility model is:

[0006] A wood fiber ultrafine grinding mechanism comprises an outer box, wherein two primary crushing rollers are symmetrically rotatably installed near the top inside the outer box, two secondary crushing rollers are symmetrically rotatably installed below the primary crushing rollers, a grinding mechanism is installed below the secondary crushing rollers, and two grinding rollers are symmetrically rotatably installed below the grinding mechanism. A driving mechanism for driving the primary crushing roller, the secondary crushing roller, the grinding mechanism and the grinding roller to rotate is installed on the outer wall of the outer box, a support leg is fixedly installed at each of the four corners of the bottom of the outer box, a feeding port is opened at the top of the outer box, and a top cover is installed at the feeding port.

[0007] As a preferred technical solution, the distance between the two secondary crushing rollers is smaller than the distance between the two primary crushing rollers.

[0008] As a preferred technical solution, the crushing mechanism includes two symmetrically arranged support rods and a mounting plate fixed between the two support rods, the support rods are fixedly connected to the inner wall of the outer box, a rotating shaft is rotatably mounted on the bottom of the mounting plate, and a number of crushing blades are fixedly mounted on the circumferential outer wall of the rotating shaft.

[0009] As a preferred technical solution, a protective cover is fixedly installed on the top of the mounting plate, and a bevel gear set for connecting the rotating shaft to the driving mechanism is provided inside the protective cover. The inner wall of the outer box is located below the crushing mechanism and has two lower baffles symmetrically hinged thereon. A hydraulic cylinder for driving the lower baffles to rotate is installed on the inner wall of the outer box.

[0010] As a preferred technical solution, when the two lower baffles are opened, the bottoms of the two lower baffles are respectively located above the two grinding rollers.

[0011] As a preferred technical solution, the driving mechanism includes a driving box fixed on an outer box, wherein a driving shaft coaxially fixed to the primary crushing roller, a first gear coaxially fixed to the secondary crushing roller, a main pulley connected to the bevel gear set, and a second gear coaxially fixed to the grinding roller are arranged inside the driving box, the two first gears are meshed, the two second gears are meshed, the main pulley and one of the first gears and one of the second gears are driven by pulleys, the first gear and the driving shaft on the same side thereof are driven by pulleys, and a driving motor for driving the main pulley to rotate is symmetrically installed on the outer wall of the driving box.

[0012] As a preferred technical solution, a glass baffle is fixedly installed on the front outer wall of the outer box, and the glass baffle is made of colorless and transparent tempered glass.

[0013] As a preferred technical solution, a guide block is fixedly connected to the inner bottom of the outer box on both sides of its discharge port, and a guide plate fixedly connected to the legs is provided under the outer box.

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

[0015] The ultra-fine pulverizing mechanism of wood fiber of the utility model realizes multi-stage pulverizing and crushing of wood fiber by sequentially arranging a primary pulverizing roller, a secondary pulverizing roller, a pulverizing mechanism and a grinding roller, greatly improving the pulverizing effect of wood fiber and making it reach an ultra-fine level. At the same time, the distance between the primary pulverizing roller and the secondary pulverizing roller is different, so that the wood fiber can be further refined after the primary pulverization, which is convenient for the subsequent pulverizing operation. The pulverizing blade in the pulverizing mechanism can efficiently cut the wood fiber and further improve the pulverizing effect. The whole mechanism has a compact structure and is easy to operate, and is suitable for large-scale ultra-fine pulverizing of wood fiber. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the internal structure of the outer box in the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the drive box in the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the protective cover, support rod and mounting plate in the utility model.

[0020] The meaning of each number in the figure is:

[0021] 1. Outer box; 10. Glass baffle; 11. Top cover; 12. Feeding port; 13. Primary crushing roller; 14. Secondary crushing roller; 15. Support rod; 150. Mounting plate; 16. Protective cover; 160. Bevel gear set; 17. Rotating shaft; 170. Crushing blade; 18. Lower baffle; 180. Hydraulic cylinder; 19. Grinding roller; 190. Guide block; 2. Support legs; 3. Guide plate; 4. Drive box; 40. Drive motor; 41. Main pulley; 42. First gear; 43. Drive shaft; 44. Second gear. 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] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] A wood fiber ultra-fine grinding mechanism comprises an outer box 1, wherein two primary crushing rollers 13 are symmetrically rotated near the top of the outer box 1, two secondary crushing rollers 14 are symmetrically rotated below the primary crushing rollers 13, a grinding mechanism is installed below the secondary crushing rollers 14, and two grinding rollers 19 are symmetrically rotated below the grinding mechanism. A driving mechanism for driving the primary crushing rollers 13, the secondary crushing rollers 14, the grinding mechanism and the grinding rollers 19 to rotate is installed on the outer wall of the outer box 1, a support leg 2 is fixedly installed at each of the four corners of the bottom of the outer box 1, a feeding port 12 is opened at the top of the outer box 1, and a top cover 11 is installed at the feeding port 12. The wood fiber ultra-fine grinding mechanism realizes multi-stage crushing and crushing of wood fiber by sequentially arranged primary crushing rollers 13, secondary crushing rollers 14, the grinding mechanism and the grinding rollers 19, greatly improving the crushing effect of wood fiber to make it reach an ultra-fine level. At the same time, the distance between the primary crushing roller 13 and the secondary crushing roller 14 is different, so that the wood fiber can be further refined after primary crushing, which is convenient for subsequent crushing operations. The crushing blade 170 in the crushing mechanism can efficiently cut the wood fiber, further improving the crushing effect. The entire mechanism has a compact structure and is easy to operate, and is suitable for large-scale ultra-fine crushing of wood fiber.

[0025] As a preferred embodiment of the present invention, the distance between the two secondary crushing rollers 14 is smaller than the distance between the two primary crushing rollers 13. In this way, the secondary crushing roller 14 can perform secondary crushing on the wood fiber based on the primary crushing roller 13, which is convenient for the subsequent crushing effect.

[0026] As a preferred embodiment of the present invention, the crushing mechanism includes two symmetrically arranged support rods 15 and a mounting plate 150 fixed between the two support rods 15. The support rods 15 are fixedly connected to the inner wall of the outer box 1. A rotating shaft 17 is rotatably mounted at the bottom of the mounting plate 150. A plurality of crushing blades 170 are fixedly mounted on the circumferential outer wall of the rotating shaft 17. When in use, the wood fibers can be crushed by driving the rotating shaft 17 to rotate, thereby driving the crushing blades 170 to rotate.

[0027] As a preferred embodiment of the present invention, a protective cover 16 is fixedly mounted on the top of the mounting plate 150, and a bevel gear set 160 for connecting the rotating shaft 17 with the driving mechanism is arranged inside the protective cover 16, and two lower baffles 18 are symmetrically hingedly mounted on the inner wall of the outer box 1 below the crushing mechanism, and a hydraulic cylinder 180 for driving the lower baffles 18 to rotate is mounted on the inner wall of the outer box 1. The protective cover 16 can protect the bevel gear set 160 and prevent the crushed wood fibers from accumulating on the mounting plate 150.

[0028] As a preferred embodiment of the present invention, when the two lower baffles 18 are opened, the bottoms of the two lower baffles 18 are respectively located above the two grinding rollers 19. After such arrangement, the lower baffles 18 can play the role of guiding the material, and can guide the crushed material to between the two grinding rollers 19.

[0029] As a preferred embodiment of the present invention, the driving mechanism includes a driving box 4 fixed on the outer box 1, and a driving shaft 43 coaxially fixed to the primary crushing roller 13, a first gear 42 coaxially fixed to the secondary crushing roller 14, a main pulley 41 connected to the bevel gear set 160, and a second gear 44 coaxially fixed to the grinding roller 19 are provided inside the driving box 4. The two first gears 42 are meshed, and the two second gears 44 are meshed. The main pulley 41 and one of the first gears 42 and one of the second gears 44 are all driven by pulleys. The first gear 42 and the driving shaft 43 located on the same side thereof are driven by pulleys. A driving motor 40 for driving the main pulley 41 to rotate is symmetrically installed on the outer wall of the driving box 4. Only one driving motor 40 is provided in the driving mechanism, which saves the use of motors to a certain extent and reduces energy consumption. At the same time, when in use, the driving motor 40 is started, and drives the main pulley 41 to rotate, and then drives the first gear 42 and the second gear 44 to rotate through the pulley. The first gear 42 drives the driving shaft 43 to rotate through the pulley. The main pulley 41 can also drive the rotating shaft 17 to rotate through the bevel gear set 160, and then can synchronously drive the primary crushing roller 13, the secondary crushing roller 14, the crushing blade 170 and the grinding roller 19 to rotate, that is, the wood fiber can be processed.

[0030] As a preferred embodiment of the present invention, a glass baffle 10 is fixedly mounted on the front outer wall of the outer box 1. The glass baffle 10 is made of colorless and transparent tempered glass. The glass baffle 10 is arranged to facilitate observation of the processing process of the wood fiber inside the outer box 1.

[0031] As a preferred embodiment of the present invention, a guide block 190 is fixedly connected to both sides of the discharge port of the inner bottom of the outer box 1, and a guide plate 3 fixedly connected to the legs 2 is provided below the outer box 1. The guide block 190 and the guide plate 3 are provided to facilitate the discharge of the crushed wood fibers to the outside of the bottom of the outer box 1.

[0032] When the wood fiber ultra-fine grinding mechanism of the utility model is used, first, the wood fiber to be processed is added into the outer box 1 through the feeding port 12. Then, the driving motor 40 is started, and the driving motor 40 drives the main pulley 41 to rotate, and then drives the first gear 42 and the second gear 44 to rotate through the pulley transmission. The rotation of the first gear 42 drives the driving shaft 43 coaxial with it to rotate through the pulley transmission, thereby driving the primary crushing roller 13 to start working. At the same time, the rotation of the second gear 44 drives the grinding roller 19 coaxial with it to rotate.

[0033] The wood fiber is firstly crushed by the primary crushing roller 13, and then falls between the secondary crushing rollers 14 below. Since the distance between the two secondary crushing rollers 14 is smaller than the distance between the two primary crushing rollers 13, the wood fiber will be further finely crushed here.

[0034] The wood fiber after the secondary crushing continues to fall and enters the crushing mechanism. Here, the rotating shaft 17 drives the crushing blade 170 to rotate at a high speed, and the wood fiber is efficiently cut and crushed to achieve a superfine level of crushing effect.

[0035] The crushed wood fibers continue to fall, and at this time the lower baffle 18 is opened under the drive of the hydraulic cylinder 180, and the crushed wood fibers are guided between the two grinding rollers 19. The grinding rollers 19 perform the final fine crushing on the wood fibers to ensure the fineness of the discharged material.

[0036] Finally, the ultra-finely crushed wood fibers are discharged through the discharge port at the bottom of the outer box 1. The design of the guide block 190 and the guide plate 3 makes the discharge process smoother and avoids blockage and accumulation.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wood fiber ultrafine grinding mechanism, comprising an outer box (1), characterized in that: Two primary crushing rollers (13) are symmetrically mounted near the top of the outer box (1), two secondary crushing rollers (14) are symmetrically mounted below the primary crushing rollers (13), a crushing mechanism is mounted below the secondary crushing rollers (14), and two grinding rollers (19) are symmetrically mounted below the crushing mechanism. A driving mechanism for driving the primary crushing rollers (13), the secondary crushing rollers (14), the crushing mechanism and the grinding rollers (19) to rotate is mounted on the outer wall of the outer box (1). A support leg (2) is fixedly mounted at each of the four corners of the bottom of the outer box (1). A feeding port (12) is provided at the top of the outer box (1), and a top cover (11) is mounted at the feeding port (12).

2. The wood fiber ultrafine grinding mechanism according to claim 1, characterized in that: The distance between the two secondary crushing rollers (14) is smaller than the distance between the two primary crushing rollers (13).

3. The wood fiber ultrafine grinding mechanism according to claim 2, characterized in that: The crushing mechanism comprises two symmetrically arranged support rods (15) and a mounting plate (150) fixed between the two support rods (15); the support rods (15) are fixedly connected to the inner wall of the outer box (1); a rotating shaft (17) is rotatably mounted on the bottom of the mounting plate (150); and a plurality of crushing blades (170) are fixedly mounted on the circumferential outer wall of the rotating shaft (17).

4. The wood fiber ultrafine grinding mechanism according to claim 3, characterized in that: A protective cover (16) is fixedly mounted on the top of the mounting plate (150), and a bevel gear set (160) for connecting the rotating shaft (17) to the driving mechanism is arranged inside the protective cover (16). Two lower baffles (18) are symmetrically hingedly mounted on the inner wall of the outer box (1) below the pulverizing mechanism, and a hydraulic cylinder (180) for driving the lower baffles (18) to rotate is mounted on the inner wall of the outer box (1).

5. The wood fiber ultrafine grinding mechanism according to claim 4, characterized in that: When the two lower baffles (18) are opened, the bottoms of the two lower baffles (18) are respectively located above the two grinding rollers (19).

6. The wood fiber ultrafine grinding mechanism according to claim 5, characterized in that: The driving mechanism comprises a driving box (4) fixed on an outer box (1), wherein a driving shaft (43) coaxially fixed to a primary crushing roller (13), a first gear (42) coaxially fixed to a secondary crushing roller (14), a main belt pulley (41) connected to a bevel gear set (160), and a second gear (44) coaxially fixed to a grinding roller (19) are arranged inside the driving box (4), two first gears (42) are meshed, two second gears (44) are meshed, the main belt pulley (41) and one of the first gears (42) and one of the second gears (44) are all driven by a belt pulley, the first gear (42) and the driving shaft (43) located on the same side thereof are driven by a belt pulley, and a driving motor (40) for driving the main belt pulley (41) to rotate is symmetrically mounted on the outer wall of the driving box (4).

7. The wood fiber ultrafine grinding mechanism according to claim 6, characterized in that: A glass baffle (10) is fixedly mounted on the front outer wall of the outer box (1), and the glass baffle (10) is made of colorless and transparent tempered glass.

8. The wood fiber ultrafine grinding mechanism according to claim 7, characterized in that: A guide block (190) is fixedly connected to the inner bottom of the outer box (1) on both sides of the material discharge port, and a material guide plate (3) fixedly connected to the support leg (2) is provided below the outer box (1).

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