A new knife barrel for wood shaving machine

Abstract

The utility model discloses a novel knife barrel for a wood chipping machine, comprising a knife barrel body, a power column fixed at one end of the knife barrel body, a driving sleeve and a movable sleeve respectively sleeved on the outer wall of the power column, a synchronous groove opened on the inner wall of the movable sleeve, a synchronous block arranged on the inner side of the synchronous groove, the synchronous block fixed on the outer wall of the power column, a pulley sleeved on the outer wall of the driving sleeve, a spring arranged at one end of the movable sleeve, and the spring sleeved on the outer wall of the power column; the utility model adopts the designed power column, driving sleeve, movable sleeve, synchronous block and synchronous groove, when the wood chipping of the knife barrel body is obstructed too much, the wood chipping rotation of the knife barrel body is overloaded, the torsional force of the inclined surface is greater than the extrusion force of the spring, the torsional force pushes the movable sleeve away from the driving sleeve to stop power transmission in time, and effectively avoids the damage of the knife barrel due to excessive resistance load on the wood chipping of the knife barrel body.

Description

Technical Field

[0001] The utility model belongs to the technical field of wood shavings, and in particular relates to a novel knife barrel for a wood shaving machine. Background Art

[0002] Wood chipper is an important equipment in wood processing, also known as chipper crusher and wood chip chipper. It is mainly used to cut wood blocks or wood strips into thin slices in batches for subsequent reprocessing. Therefore, the quality of the chipper slicing effect directly affects the quality of the subsequent pressed board. The current wood chipper is mainly divided into horizontal reciprocating cutting and rotary cutting. The rotary cutting method adopts a knife cylinder structure to realize the shavings processing of wood, such as the wood chipper rotary knife cylinder and wood chipper with application number 202011542342.8, including side panels on both sides, a cylinder connecting the side panels on both sides, a turntable, a tool and a connecting block for installing the tool, and sliding rods are provided at both ends of the connecting block, and a first sliding groove matching the sliding rod is provided on the side of the side panel facing the connecting block, and a rotating rod is also provided on the end of the sliding rod away from the connecting block, and an arc groove matching the rotating rod is provided on the turntable, and the connecting block is driven to move in the radial direction of the side panel by rotating the turntable, thereby increasing the gap between the connecting blocks, increasing the cutting gap, and controlling the thickness of the cut wood chips. At the same time, multiple connecting blocks and the cutters on the connecting blocks can be adjusted synchronously so that their adjustment positions are the same and there will be no difference, thereby effectively realizing the rapid adjustment of the wood cutting gap. The above-mentioned planer knife barrel has the following defects:

[0003] (1) Although the rotating knife barrel of the wood planer can adjust the tool gap, during the actual wood planing process, when the knife barrel is overloaded by the inserted wood, the knife barrel cannot stop rotating in time, which can easily cause damage to the tool in the barrel. For this reason, we propose a new knife barrel for wood planing machines. Utility Model Content

[0004] The utility model aims to provide a new knife barrel for a wood chipper to solve the problem in the background art that the chipper knife barrel is hindered and overloaded during operation and cannot stop rotating in time, resulting in damage to the knife.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of knife barrel for a wood shaving machine, comprising a knife barrel body, a power column is fixed at one end of the knife barrel body, the outer walls of the power column are respectively sleeved with a driving sleeve and a movable sleeve, the inner wall of the movable sleeve is provided with a synchronization groove, a synchronization block is arranged on the inner side of the synchronization groove, the synchronization block is fixed on the outer wall of the power column, the outer wall of the driving sleeve is sleeved with a pulley, a spring is arranged at one end of the movable sleeve, and the spring is sleeved on the outer wall of the power column.

[0006] Preferably, the outer wall of the power column is provided with a side groove with a circular cross-section, the inner side of the side groove is provided with a side block, and the side block is fixed on the inner wall of the driving sleeve.

[0007] Preferably, the longitudinal section of the power column is a circular structure, and the cross section of the power column is a convex structure.

[0008] Preferably, a ball groove is formed on the end surface of the power column, and a ball is embedded in the ball groove.

[0009] Preferably, the surface of the power column and the surface of the knife barrel body are connected together with a rib plate, and the cross-section of the rib plate is a triangular structure.

[0010] Preferably, there are four ribs, and the four ribs are arranged in a circular array about the central axis of the power column.

[0011] Preferably, the longitudinal cross-sections of the driving sleeve and the movable sleeve are both circular structures, and the central axes of the driving sleeve, the movable sleeve and the power column coincide with each other.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) Through the designed power column, drive sleeve, movable sleeve, synchronization block and synchronization groove, the power column equipped with the drive sleeve and the movable sleeve is installed on the knife barrel body. The spring provides an extrusion force to the movable sleeve, so that the inclined surfaces of the drive sleeve and the movable sleeve fit together, and the power source drives the drive sleeve to rotate. At this time, the drive sleeve and the movable sleeve rotate synchronously under the effect of torsional effect and friction resistance. When the wood shavings of the knife barrel body are too obstructed, the wood shavings of the knife barrel body are overloaded. The torsional force of the inclined surface is greater than the extrusion force of the spring. The torsional force pushes the movable sleeve away from the drive sleeve to stop power transmission in time, effectively avoiding the damage of the knife barrel body caused by excessive resistance load. Through the designed side block and side groove, the drive sleeve is rotatably installed at one end of the power column to avoid detachment from the power column. The designed ball plays a lubricating role to reduce the rotational wear between the end face of the power column and the inner wall of the drive sleeve. The designed rib plate is used to reinforce the connection between the power column and the knife barrel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is an assembly cross-sectional view of the power column, movable sleeve and driving sleeve of the utility model;

[0016] Figure 3 This is a side view of the assembly of the power column and the movable sleeve of the utility model;

[0017] Figure 4This is an assembly side view of the pulley and the drive sleeve of the utility model;

[0018] In the figure: 1. knife barrel body; 2. rib plate; 3. movable sleeve; 4. pulley; 5. driving sleeve; 6. spring; 7. power column; 8. ball bearing; 9. side block; 10. synchronous groove; 11. synchronous block; 12. side groove. DETAILED DESCRIPTION

[0019] 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.

[0020] Example

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a new knife barrel for a wood shaving machine, comprising a knife barrel body 1, a power column 7 is fixed at one end of the knife barrel body 1, the outer wall of the power column 7 is respectively sleeved with a driving sleeve 5 and a movable sleeve 3, the inner wall of the movable sleeve 3 is provided with a synchronous groove 10, the inner side of the synchronous groove 10 is provided with a synchronous block 11, the synchronous block 11 is fixed on the outer wall of the power column 7, the outer wall of the driving sleeve 5 is sleeved with a pulley 4, and one end of the movable sleeve 3 is provided with a spring 6. Through the designed power column 7, driving sleeve 5, movable sleeve 3, synchronous block 11 and synchronous groove 10, the power column 7 equipped with the driving sleeve 5 and the movable sleeve 3 is installed On the knife barrel body 1, the spring 6 provides an extrusion force on the movable sleeve 3, so that the inclined surfaces of the driving sleeve 5 and the movable sleeve 3 fit together, and the power source drives the driving sleeve 5 to rotate. At this time, the driving sleeve 5 and the movable sleeve 3 rotate synchronously under the torsional effect and the friction resistance. When the knife barrel body 1 is too obstructed, the knife barrel body 1 is overloaded, and the torsional force of the inclined surface is greater than the extrusion force of the spring 6. The torsional force pushes the movable sleeve 3 away from the driving sleeve 5 to stop power transmission in time, effectively avoiding the knife barrel body 1 from being damaged due to excessive resistance load. The spring 6 is sleeved on the outer wall of the power column 7.

[0022] In this embodiment, preferably, the outer wall of the power column 7 is provided with a side groove 12 with a circular cross-section, and a side block 9 is arranged on the inner side of the side groove 12. Through the designed side block 9 and side groove 12, the drive sleeve 5 is rotatably installed on one end of the power column 7 to avoid detachment from the power column 7. The side block 9 is fixed on the inner wall of the drive sleeve 5. The longitudinal section of the power column 7 is a circular structure, and the cross-section of the power column 7 is a convex structure. A ball groove is provided on the end face of the power column 7, and a ball 8 is embedded in the ball groove. The designed ball 8 plays a lubricating role, thereby reducing the rotational wear between the end face of the power column 7 and the inner wall of the drive sleeve 5.

[0023] In the present embodiment, preferably, the surface of the power column 7 and the surface of the knife barrel body 1 are commonly connected with ribs 2, the cross-section of the ribs 2 is a triangular structure, there are four ribs 2, and the connection between the power column 7 and the knife barrel body 1 is reinforced by the designed ribs 2, and the four ribs 2 are arranged in a circular array about the central axis of the power column 7, the longitudinal sections of both the drive sleeve 5 and the movable sleeve 3 are circular structures, and the central axes of the drive sleeve 5, the movable sleeve 3 and the power column 7 coincide with each other.

[0024] The working principle and use process of the utility model: the utility model installs the power column 7 equipped with the driving sleeve 5 and the movable sleeve 3 on the knife barrel body 1, and with the cooperation of the synchronization block 11 and the synchronization groove 10, it is ensured that the movable sleeve 3 can slide on the power column 7 while ensuring synchronous rotation. The spring 6 provides an extrusion force to the movable sleeve 3, so that the inclined surfaces of the driving sleeve 5 and the movable sleeve 3 fit together, and the power source drives the driving sleeve 5 to rotate. At this time, the driving sleeve 5 and the movable sleeve 3 rotate synchronously under the torsional effect and friction resistance. When the knife barrel body 1 is too obstructed in shavings, the knife barrel body 1 is overloaded in shavings rotation, and the torsional force of the inclined surface is greater than the extrusion force of the spring 6. The torsional force pushes the movable sleeve 3 away from the driving sleeve 5 to stop power transmission in time, effectively avoiding the knife barrel body 1 from being damaged by excessive resistance load.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new knife barrel for a wood shaving machine, comprising a knife barrel body (1), characterized in that: A power column (7) is fixed to one end of the knife barrel body (1); a driving sleeve (5) and a movable sleeve (3) are respectively sleeved on the outer wall of the power column (7); a synchronization groove (10) is opened on the inner wall of the movable sleeve (3); a synchronization block (11) is arranged on the inner side of the synchronization groove (10); the synchronization block (11) is fixed on the outer wall of the power column (7); a pulley (4) is sleeved on the outer wall of the driving sleeve (5); a spring (6) is arranged at one end of the movable sleeve (3), and the spring (6) is sleeved on the outer wall of the power column (7).

2. The new knife barrel for a wood chipper according to claim 1 is characterized in that: The outer wall of the power column (7) is provided with a side groove (12) with a circular cross section, and a side block (9) is arranged inside the side groove (12), and the side block (9) is fixed on the inner wall of the driving sleeve (5).

3. The new knife barrel for a wood chipper according to claim 2 is characterized in that: The longitudinal section of the power column (7) is a circular structure, and the cross section of the power column (7) is a convex structure.

4. The new knife barrel for a wood chipper according to claim 3 is characterized in that: The end surface of the power column (7) is provided with a ball groove, and a ball (8) is embedded in the ball groove.

5. The new knife barrel for a wood chipper according to claim 1 is characterized in that: The surface of the power column (7) and the surface of the knife barrel body (1) are commonly connected with a rib plate (2), and the cross section of the rib plate (2) is a triangular structure.

6. The new knife barrel for a wood chipper according to claim 5 is characterized in that: There are four rib plates (2), and the four rib plates (2) are arranged in a circular array about the central axis of the power column (7).

7. The new knife barrel for a wood chipper according to claim 1 is characterized in that: The longitudinal cross-sections of the driving sleeve (5) and the movable sleeve (3) are both circular structures, and the central axes of the driving sleeve (5), the movable sleeve (3) and the power column (7) coincide with each other.

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