Horizontal rotation type wood chip screening equipment

Abstract

The utility model discloses horizontal rotation type wood chip screening equipment which comprises a shell, a hollow shaft is rotationally installed on the inner side of the center of the top of the shell through a bearing, a solid shaft is rotationally installed on the inner side of the hollow shaft through a bearing, and the lower end of the solid shaft penetrates through the interior of the hollow shaft and is fixedly provided with a filter screen. A filter screen is fixed to the outer wall of the hollow shaft and located in the movable cylinder, a scattering rod is fixed to the outer wall of the hollow shaft and located in the movable cylinder, and the top of the outer side of the movable cylinder is fixed to the inner wall of the shell through a lifting mechanism. According to the device, the filter screen and the scattering rod can rotate in opposite directions, the scattering rod can scatter caked wood chips, the caked wood chips can be filtered by the filter screen, meanwhile, the wood chips in the movable cylinder can be driven to be in a stirring state, and screening of the wood chips by the filter screen is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sawdust screening, in particular to a horizontal rotary sawdust screening device. Background Art

[0002] In the production process of wood-based boards, the crushed wood chips need to be screened and divided into different specifications, and then the corresponding wood chips are selected for hot pressing according to the requirements of the boards. Therefore, screening of wood chips is an indispensable part of the production process of wood-based boards.

[0003] However, the existing sawdust screening equipment is unable to break up the agglomerated sawdust, resulting in the agglomerated sawdust being unable to be screened, and at the same time, the large pieces of sawdust blocked on the filter screen cannot be quickly removed, affecting work efficiency.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original sawdust screening equipment. Utility Model Content

[0005] The purpose of the utility model is to provide a horizontal rotary wood chip screening device to solve the problems raised by the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a horizontal rotary wood chip screening equipment, comprising a shell, a hollow shaft is rotatably installed on the inner side of the top center of the shell through a bearing, a solid shaft is rotatably installed on the inner side of the hollow shaft through a bearing, the lower end of the solid shaft passes through the interior of the hollow shaft and a filter screen is fixed thereon, the filter screen is located inside the movable cylinder, a breaking rod is fixed on the outer wall of the hollow shaft, the breaking rod is located inside the movable cylinder, the top of the outer side of the movable cylinder is fixed to the inner wall of the shell through a lifting mechanism, the upper end of the solid shaft passes through the interior of the hollow shaft and a third bevel gear is fixed thereon, the outer wall of the hollow shaft is located above the shell and a second bevel gear is fixed thereon, a motor is fixed on the top of the shell, a first bevel gear is fixed on the output end of the motor, and the first bevel gear is meshedly connected with the second bevel gear and the third bevel gear.

[0007] Preferably, the outer side of the filter screen fits with the inner side of the movable cylinder, the top of the filter screen fits with the lower end of the hollow shaft, and the bottom of the lowest breaking rod fits with the top of the filter screen.

[0008] Preferably, the lifting mechanism comprises a cylinder, the cylinder is fixed to the inner side of the outer shell, a connecting plate is fixed to the top of the cylinder, and an end of the connecting plate is fixedly connected to the top of the outer side of the movable cylinder.

[0009] Preferably, the breaking up rods are distributed at equal angles with respect to the central axis of the hollow shaft, and the breaking up rods are distributed at equal intervals on one side of the hollow shaft.

[0010] Preferably, there are two cylinders and two connecting plates symmetrically distributed about the central axis of the movable cylinder.

[0011] Preferably, a feeding bin is fixedly passed through the top of the shell, a top cover is threadedly mounted on the top of the feeding bin, and the lower end of the feeding bin is located above the movable cylinder.

[0012] Preferably, a rubber elastic ring is fixed to the top of the movable cylinder, the top of the rubber elastic ring is fixedly connected to the top inside the outer shell, and the lower end of the feeding bin is located inside the rubber elastic ring.

[0013] Preferably, a discharge pipe is provided at the bottom of the shell, and a manual valve is installed on the discharge pipe.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the horizontal rotary sawdust screening device can make the filter screen and the breaking rod rotate in opposite directions by starting the motor, so that the breaking rod can break up the agglomerated sawdust, so that the agglomerated sawdust can also be filtered by the filter screen, and at the same time, the sawdust inside the movable cylinder can be stirred, which is beneficial to the screening of the sawdust by the filter screen;

[0015] Start the two cylinders, which drive the movable cylinder upward through the two connecting plates, so that the movable cylinder moves to the top of the filter. As the filter rotates, large pieces of wood chips on the top of the filter are thrown into the inside of the outer shell and finally discharged through the discharge pipe, thereby facilitating the removal of large pieces of wood chips on the top of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Schematic diagram of the structure after the middle movable cylinder moves upward;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0019] Figure 4 It is a schematic diagram of the top view of the rubber elastic ring of the utility model.

[0020] In the figure: 1. outer shell; 2. hollow shaft; 3. solid shaft; 4. filter screen; 5. movable cylinder; 6. breaking rod; 7. motor; 8. first bevel gear; 9. second bevel gear; 10. third bevel gear; 11. cylinder; 12. connecting plate; 13. feeding bin; 14. top cover; 15. rubber elastic ring; 16. discharge pipe; 17. manual valve. DETAILED DESCRIPTION

[0021] See also Figure 1-4 The utility model provides a technical solution: a horizontal rotary wood chip screening device, including a shell 1, a hollow shaft 2 is rotatably installed on the inner side of the top center of the shell 1 through a bearing, a solid shaft 3 is rotatably installed on the inner side of the hollow shaft 2 through a bearing, the lower end of the solid shaft 3 passes through the interior of the hollow shaft 2 and a filter screen 4 is fixed thereon, the filter screen 4 is located inside a movable cylinder 5, a breaking rod 6 is fixed to the outer wall of the hollow shaft 2, the breaking rod 6 is located inside the movable cylinder 5, the top of the outer side of the movable cylinder 5 is fixed to the inner wall of the shell 1 through a lifting mechanism, the upper end of the solid shaft 3 passes through the interior of the hollow shaft 2 and a third bevel gear 10 is fixed thereon, the outer wall of the hollow shaft 2 is located above the shell 1 and fixed There is a second bevel gear 9, a motor 7 is fixed on the top of the shell 1, a first bevel gear 8 is fixed on the output end of the motor 7, the first bevel gear 8 is meshedly connected with the second bevel gear 9 and the third bevel gear 10, a feeding bin 13 is fixed through the top of the shell 1, a top cover 14 is threadedly installed on the top of the feeding bin 13, the lower end of the feeding bin 13 is located above the movable cylinder 5, a discharge pipe 16 is provided at the bottom of the shell 1, a manual valve 17 is installed on the discharge pipe 16, by starting the motor 7, the filter screen 4 and the breaking rod 6 can be rotated in opposite directions, so that the breaking rod 6 can break up the agglomerated wood chips, so that the agglomerated wood chips can also be filtered by the filter screen 4.

[0022] The outer side of the filter screen 4 fits with the inner side of the movable cylinder 5, and the top of the filter screen 4 fits with the lower end of the hollow shaft 2, and the bottom of the lowest breaking rod 6 fits with the top of the filter screen 4, ensuring that the filter screen 4 can rotate normally inside the movable cylinder 5, and at the same time ensuring that the lowest breaking rod 6 and the hollow shaft 2 will not affect the rotation of the filter screen 4.

[0023] The lifting mechanism includes a cylinder 11, the cylinder 11 is fixed on the inner side of the outer shell 1, a connecting plate 12 is fixed on the top of the cylinder 11, the end of the connecting plate 12 is fixedly connected to the top of the outer side of the movable cylinder 5, and there are two cylinders 11 and two connecting plates 12 symmetrically distributed about the central axis of the movable cylinder 5. By starting the cylinder 11, the movable cylinder 5 can be moved above the filter screen 4.

[0024] The breaking rods 6 are distributed at equal angles about the central axis of the hollow shaft 2 , and are evenly spaced on one side of the hollow shaft 2 , which increases the breaking range of the breaking rods 6 and is beneficial to breaking up the wood chips agglomerated inside the movable cylinder 5 .

[0025] A rubber elastic ring 15 is fixed to the top of the movable cylinder 5, and the top of the rubber elastic ring 15 is fixedly connected to the top of the outer shell 1. The lower end of the feeding bin 13 is located inside the rubber elastic ring 15. Under the obstruction of the rubber elastic ring 15, the wood chips inside the feeding bin 13 can fall into the inside of the movable cylinder 5.

[0026] Working principle: When using the horizontal rotary sawdust screening equipment, first rotate the top cover 14 so that the top cover 14 is removed from the top of the feeding bin 13, then pour the sawdust to be screened into the inside of the movable cylinder 5 through the feeding bin 13, and then reinstall the top cover 14 on the top of the feeding bin 13;

[0027] Then, the motor 7 is started, and the motor 7 drives the first bevel gear 8 to rotate. The first bevel gear 8 drives the second bevel gear 9 and the third bevel gear 10 to rotate in opposite directions respectively, so that the third bevel gear 10 drives the solid shaft 3 and the filter screen 4 to rotate in opposite directions to the second bevel gear 9 driving the breaking rod 6, so that the filter screen 4 and the breaking rod 6 rotate in opposite directions. The breaking rod 6 can break up the agglomerated wood chips inside the movable cylinder 5 during the rotation process, and can also drive the wood chips inside the movable cylinder 5 to be in a stirring state, which is beneficial to the screening of the wood chips by the filter screen 4, and the screened wood chips are discharged through the discharge pipe 16;

[0028] The two cylinders 11 are started, and the two cylinders 11 drive the movable cylinder 5 to move upward through the two connecting plates 12, so that the movable cylinder 5 moves to the top of the filter screen 4, so that Figure 1 The state of the middle movable cylinder 5 becomes Figure 2 In the state of the middle movable cylinder 5, when the filter screen 4 rotates, the large pieces of wood chips on the top of the filter screen 4 are thrown into the interior of the shell 1 and finally discharged through the discharge pipe 16, so that the large pieces of wood chips on the top of the filter screen 4 are conveniently taken out.

Claims

1. A horizontal rotary wood chip screening device, comprising a housing (1), characterized in that: A hollow shaft (2) is rotatably mounted on the inner side of the top center of the housing (1) via a bearing, a solid shaft (3) is rotatably mounted on the inner side of the hollow shaft (2) via a bearing, a filter screen (4) is fixed to the lower end of the solid shaft (3) through the interior of the hollow shaft (2), the filter screen (4) is located inside the movable cylinder (5), a breaking rod (6) is fixed to the outer wall of the hollow shaft (2), the breaking rod (6) is located inside the movable cylinder (5), and the top of the outer side of the movable cylinder (5) is fixed to the outer wall of the hollow shaft (2) via a lifting mechanism. The lowering mechanism is fixed to the inner wall of the outer shell (1); the upper end of the solid shaft (3) passes through the interior of the hollow shaft (2) and is fixed with a third bevel gear (10); the outer wall of the hollow shaft (2) is located above the outer shell (1) and is fixed with a second bevel gear (9); the top of the outer shell (1) is fixed with a motor (7); the output end of the motor (7) is fixed with a first bevel gear (8); the first bevel gear (8) is meshingly connected with the second bevel gear (9) and the third bevel gear (10).

2. The horizontal rotary wood chip screening device according to claim 1, characterized in that: The outer side of the filter screen (4) fits with the inner side of the movable cylinder (5), the top of the filter screen (4) fits with the lower end of the hollow shaft (2), and the bottom of the breaking rod (6) fits with the top of the filter screen (4).

3. The horizontal rotary wood chip screening device according to claim 1, characterized in that: The lifting mechanism comprises a cylinder (11), the cylinder (11) is fixed on the inner side of the outer shell (1), a connecting plate (12) is fixed on the top of the cylinder (11), and the end of the connecting plate (12) is fixedly connected to the top of the outer side of the movable cylinder (5).

4. The horizontal rotary wood chip screening device according to claim 1, characterized in that: The breaking rods (6) are distributed at equal angles with respect to the central axis of the hollow shaft (2), and the breaking rods (6) are distributed at equal intervals on one side of the hollow shaft (2).

5. The horizontal rotary wood chip screening device according to claim 3, characterized in that: The cylinders (11) and the connecting plates (12) are both symmetrically distributed with respect to the central axis of the movable cylinder (5).

6. The horizontal rotary wood chip screening device according to claim 1, characterized in that: A feeding bin (13) is fixedly passed through the top of the housing (1), a top cover (14) is threadedly mounted on the top of the feeding bin (13), and the lower end of the feeding bin (13) is located above the movable cylinder (5).

7. The horizontal rotary wood chip screening device according to claim 6, characterized in that: A rubber elastic ring (15) is fixed to the top of the movable cylinder (5), the top of the rubber elastic ring (15) is fixedly connected to the top of the housing (1), and the lower end of the feeding bin (13) is located inside the rubber elastic ring (15).

8. The horizontal rotary wood chip screening device according to claim 1, characterized in that: A discharge pipe (16) is provided at the bottom of the housing (1), and a manual valve (17) is installed on the discharge pipe (16).

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