Wood crushing mechanism

Abstract

The utility model relates to the field of wood crushing, and discloses a wood crushing mechanism which comprises a shell and a feeding port fixed to the top of the shell. The crushing roller is mounted in the feeding hole; the motor is connected with a transmission shaft at one end of the crushing roller; the guide plate is mounted in the shell; the first discharging opening is formed in the side wall of the shell and corresponds to the lower end of the guide plate; the transmission belt is mounted at one end of the crushing roller away from the motor; the eccentric wheel is mounted at the bottom of the guide plate. The guide plate is installed in the shell, the first discharging port is formed in the side wall, corresponding to the guide plate, of the shell, crushed wood particles are screened through the guide plate, unqualified particles slide out of the shell through guiding and wait for secondary crushing, the eccentric wheel is installed at the bottom of the guide plate, and when the crushing roller rotates, the crushing roller can be driven by the eccentric wheel to rotate. The eccentric wheel is driven by the transmission belt to vibrate the guide plate, so that the screening efficiency of the guide plate is improved, and meanwhile, the possibility that meshes of the guide plate are blocked is reduced.

Description

Technical Field

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

[0002] As is well known, the raw materials of wood-based panel factories are tree branches, tree trunks, or waste wood. The first process for these raw materials to be made into wood-based panels is to chip, cut short, and screen them with a chipper. The second process is to crush them into fine materials with a crusher. The third process is drying. The fourth process is to make the finished wood-based panel under the action of an adhesive through high temperature and high pressure.

[0003] Among them, in order to facilitate the subsequent drying process and gluing and pressing process, when crushing the wood, it should be ensured that the particle size of the crushed particles is not too large. Therefore, screening is required during wood crushing to screen out unqualified particles and crush them again. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a wood crushing mechanism, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions:

[0006] The utility model discloses a wood crushing mechanism, including a housing,

[0007] A feed inlet, fixed at the top of the housing;

[0008] A crushing roller, installed inside the feed inlet;

[0009] A motor, installed outside the feed inlet and connected to the transmission shaft at one end of the crushing roller;

[0010] A guide plate, installed inside the housing;

[0011] A first discharge port, opened on the side wall of the housing and corresponding to the lower end of the guide plate;

[0012] A transmission belt, installed at the end of the crushing roller far from the motor;

[0013] An eccentric wheel, installed at the bottom of the guide plate.

[0014] Furthermore, limiting claws are fixed on the surface of the crushing roller, and the limiting claws are arc-shaped.

[0015] Furthermore, through holes are opened on the side wall of the feed inlet corresponding to the position of the limiting claws.

[0016] Furthermore, a plurality of guide teeth are fixed at the bottom of the inclined plate of the feed inlet.

[0017] Further, a cleaning tooth is fixed on the side of the inner wall of the feed inlet away from the guiding teeth.

[0018] Further, a second discharge port is formed in the bottom side wall of the housing.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. In the utility model, a guiding plate is installed inside the housing, and a first discharge port is formed in the side wall of the housing corresponding to the guiding plate. The crushed wood particles are screened by the guiding plate, and the unqualified particles slide out of the interior of the housing through the guiding plate and wait for secondary crushing. An eccentric wheel is installed at the bottom of the guiding plate. When the crushing roller rotates, the eccentric wheel is driven by the transmission belt to vibrate the guiding plate, thereby accelerating the screening efficiency of the guiding plate and reducing the possibility of blockage of the mesh holes of the guiding plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structure diagram of the utility model;

[0022] Figure 2 is a front sectional three-dimensional view of the utility model;

[0023] Figure 3 is a side sectional view of the utility model;

[0024] The reference numerals in the drawings respectively represent: 1, housing; 2, feed inlet; 3, crushing roller; 4, motor; 5, limiting claw; 6, through hole; 7, guiding tooth; 8, cleaning tooth; 9, guiding plate; 10, first discharge port; 11, second discharge port; 12, transmission belt; 13, eccentric wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-3, including a housing 1, a feed inlet 2 fixed at the top of the housing 1, which is trapezoidal in reverse, one side of the feed inlet 2 is perpendicular to the top of the housing 1, and the other side extends outward; a crushing roller 3 installed inside the feed inlet 2, and the feed inlet 2 is perpendicular to the side plate of the housing 1 close to the crushing roller 3. Therefore, the distances between the crushing roller 3 and the inner walls on both sides of the feed inlet 2 are not equal. When the crushing roller 3 crushes the wood, the crushing roller 3 rotates towards the inclined plate side of the feed inlet 2, and the wood falling into the feed inlet 2 is crushed between the inclined plate of the feed inlet 2 and the crushing roller 3. And as the wood approaches the housing 1, the distance between the feed inlet 2 and the crushing roller 3 becomes smaller, and the wood particles crushed between the feed inlet 2 and the crushing roller 3 also become smaller; a motor 4 installed outside the feed inlet 2, connected to the transmission shaft at one end of the crushing roller 3; a guide plate 9 installed inside the housing 1, the guide plate 9 is inclined, both sides of the guide plate 9 are fixed with limit shafts, and the housing 1 inner wall is provided with movable holes corresponding to the positions of the limit shafts, and a support plate is fixed at the position corresponding to the lower end of the guide plate 9 on the inner wall of the housing 1. The wood crushed by the crushing roller 3 is screened by the guide plate 9; a first discharge port 10 is opened on the side wall of the housing 1 and corresponds to the lower end of the guide plate 9. The unqualified wood particles screened by the guide plate 9 slide out from the first discharge port 10; a second discharge port 11 is opened on the bottom side wall of the housing 1, and the second discharge port 11 is located on the side far from the first discharge port 10. The qualified wood particles screened by the guide plate 9 are collected through the second discharge port 11; a transmission belt 12 is installed at one end of the crushing roller 3 far from the motor 4; an eccentric wheel 13 is installed at the bottom of the guide plate 9, and the transmission shaft is connected to the transmission belt 12. When the motor 4 drives the crushing roller 3 to crush the wood, the crushing roller 3 drives the eccentric wheel 13 to rotate through the transmission belt 12. When the eccentric wheel 13 rotates, it produces a vibration effect on the guide plate 9, so that the wood particles falling on the surface of the guide plate 9 can be quickly screened, avoiding particle accumulation and at the same time reducing the blockage of the mesh holes of the guide plate 9.

[0027] Limit claws 5 are fixed on the surface of the crushing roller 3, and the limit claws 5 are arc-shaped. When the crushing roller 3 rotates, the limit claws 5 rotate with the crushing roller 3 to move the wood inside the feed inlet 2, so that the wood is located between the crushing roller 3 and the inclined plate of the feed inlet 2, thus facilitating the crushing roller 3 to crush the wood. Through holes 6 are opened on the side wall of the feed inlet 2 corresponding to the positions of the limit claws 5. When the limit claws 5 rotate to the side wall position of the feed inlet 2, the limit claws 5 can pass through the inside of the through holes 6, which not only ensures that the distance between the crushing roller 3 and the side wall of the feed inlet 2 remains unchanged, but also enables the limit claws 5 to work properly.

[0028] A number of guide teeth 7 are fixed at the bottom of the inclined plate of the feed inlet 2. The wood is cut off by the guide teeth 7 to further crush the wood. Cleaning teeth 8 are fixed on the side of the inner wall of the feed inlet 2 far from the guide teeth 7. When the crushing teeth on the crushing roller 3 are wound with wood, the wood wound on the surface of the crushing roller 3 is cleaned by the cleaning teeth 8 to ensure the normal operation of the crushing teeth.

[0029] Working principle: Feed the wood to be crushed into the inside of the feed inlet 2, start the motor 4, the motor 4 drives the crushing roller 3 to rotate, and rolls and crushes the wood. When the crushing roller 3 rotates, it drives the limit claw 5 to rotate together. When the limit claw 5 moves inside the feed inlet 2, it gathers the wood to one side, thus facilitating the crushing by the crushing roller 3. When the surface of the crushing roller 3 is wound with wood, the cleaning teeth 8 fixed on the inner wall of the feed inlet 2 come into contact with the surface of the crushing roller 3, and can clean the wound wood, ensuring that the crushing teeth of the crushing roller 3 are not blocked, and thus ensuring the crushing efficiency of the wood. After the wood is crushed by the crushing roller 3, it falls onto the surface of the guide plate 9. When the guide plate 9 screens the crushed wood particles, the eccentric wheel 13 at the bottom of the guide plate 9 is driven by the transmission belt 12 to vibrate the guide plate 9, accelerating the screening efficiency of the guide plate 9 and at the same time reducing the blockage of the mesh holes of the guide plate 9. The qualified wood particles fall to the bottom of the housing 1 through the guide plate 9, and the qualified particles can be collected uniformly through the second discharge port 11 opened on the side wall of the bottom of the housing 1.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wood crushing mechanism, comprising a housing (1), It is characterized in that Also included are: A feed inlet (2) is fixed on the top of the shell (1); A crushing roller (3) is installed inside the feed port (2); A motor (4) is installed outside the feed port (2) and connected to a transmission shaft at one end of the crushing roller (3); A guide plate (9) installed inside the housing (1); A first discharge port (10) is provided on the side wall of the housing (1) and corresponds to a lower end of the guide plate (9); A transmission belt (12) is mounted on an end of the crushing roller (3) away from the motor (4); An eccentric wheel (13) is mounted on the bottom of the guide plate (9); A limiting claw (5) is fixed on the surface of the crushing roller (3), and the limiting claw (5) is arc-shaped; A plurality of guide teeth (7) are fixed to the bottom of the inclined plate of the feed inlet (2).

2. The wood crushing mechanism according to claim 1, characterized in that: A through hole (6) is provided on the side wall of the feed port (2) at a position corresponding to the limiting claw (5).

3. The wood crushing mechanism according to claim 1, characterized in that: A cleaning tooth (8) is fixed on a side of the inner wall of the feed port (2) away from the guide tooth (7).

4. The wood crushing mechanism according to claim 1, characterized in that: A second discharge port (11) is provided on the bottom side wall of the housing (1).

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