Blade assembly of drum chipper

Abstract

The utility model provides a blade assembly of drum chipper relates to chipper blade field, including blade body, the both sides of blade body are detachably connected with fixed frame, the front end and the rear end of fixed frame inner cavity are provided with vent hole, the one side of vent hole inner cavity is provided with fan, and the fan is provided with the fan. A fixing unit is arranged in an inner cavity of the fixing frame; the blade body is a main component for cutting wood, the fixing frame is used for stably installing internal elements on the two sides of the blade body, the fan forcibly convects through the ventilation holes, air flow between the blade body and the fixing frame is accelerated, the heat dissipation effect is further enhanced, and the phenomenon that the service life of the blade body is affected due to the fact that the temperature is too high is avoided. The mounting holes, the through holes, the clamping columns and the clamping grooves jointly act to stably fix the fixing frame to the surface of the blade body, and the clamping of the clamping columns and the clamping grooves ensures the stability of the fixing frame on the surface of the blade body.

Description

Technical Field

[0001] This utility model belongs to the field of chipper blades, specifically a blade assembly for a drum chipper. Background Technology

[0002] Drum chippers are specialized equipment for producing high-quality wood chips. They are known for their superior performance and can efficiently and stably cut logs and small-diameter timber into high-quality industrial wood chips with uniform length, smooth cuts, and uniform thickness. The blade assembly is a key part of the equipment, responsible for cutting logs or timber into wood chips of the required specifications.

[0003] The blade assembly of a drum chipper generates a lot of heat during the cutting process. Therefore, heat dissipation grooves are usually designed on the blades to increase the contact area between the blades and the air, and the heat is dissipated into the air through natural convection. However, this heat dissipation method is relatively slow. When the blades work for a long time, the rate of heat generation is higher than the rate of heat dissipation. A lot of heat is generated due to friction, which causes the blades to overheat, affecting their hardness and wear resistance, and easily reducing the service life of the blades.

[0004] In summary, this utility model provides a blade assembly for a drum chipper to solve the above-mentioned problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A blade assembly for a drum chipper includes a blade body. A fixing frame is detachably connected to both sides of the blade body. Ventilation holes are provided at the front and rear ends of the inner cavity of the fixing frame. A fan is provided on one side of the inner cavity of the ventilation hole. A fixing unit is provided within the inner cavity of the fixing frame. The fixing unit includes mounting holes located at the front and rear ends of the top sides of the blade body. Through holes are provided at the front and rear ends of the bottom of the fixing frame. A locking pin is slidably connected to the inner cavity of the through holes. Locking grooves are provided at the front and rear ends of the top of the inner cavity of the fixing frame. The top of the locking pin extends into the inner cavity of the locking groove and engages with the inner cavity of the locking groove.

[0007] Furthermore, in this utility model, a pressing plate is provided on each of the two fixed frames on opposite sides, and a fixing frame is fixedly connected to the front and back of the pressing plate, and the bottom of the clamping post is fixedly connected to the top of the fixing frame.

[0008] Furthermore, in this utility model, limit grooves are provided at the front and rear ends of the two fixed frames on opposite sides. Limit blocks are slidably connected to the inner cavity of the limit grooves, and one end of the limit block extends to the outside of the limit groove and is fixedly connected to the fixed frame.

[0009] Furthermore, in this utility model, a compression spring is fixedly connected to the bottom of the limiting block, and the bottom of the compression spring is fixedly connected to the bottom of the inner cavity of the limiting groove.

[0010] Furthermore, in this utility model, positioning blocks are fixedly connected to both sides of the top of the blade body and to the front end of the fixing frame, and protective frames are fixedly connected to the surface of the ventilation hole and to the side of the two fixing frames that are close to each other, and the number of protective frames is four.

[0011] Beneficial effects: This utility model has the following beneficial effects:

[0012] The blade body of this utility model is the main component for cutting wood, while the fixing frame is used to securely install the internal components on both sides of the blade body. The fan forces convection through the ventilation holes, accelerates the airflow between the blade body and the fixing frame, further enhances the heat dissipation effect, and prevents the blade body from being affected by excessive temperature, thus affecting its service life. The mounting holes, through holes, locking posts, and locking slots work together to securely fix the fixing frame to the surface of the blade body. The engagement of the locking posts and locking slots ensures the stability of the fixing frame on the surface of the blade body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the blade body of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the through hole and the locking post in the separated state of this utility model;

[0016] Figure 4 This is a schematic diagram of the main structure of the right-side fixed frame of this utility model;

[0017] Figure 5 This is a bottom sectional view of the right-side fixed frame of this utility model.

[0018] In the picture:

[0019] 1. Blade body; 2. Fixing frame; 3. Ventilation hole; 4. Fan; 5. Positioning block; 6. Fixing unit; 601. Mounting hole; 602. Through hole; 603. Locking post; 604. Locking groove; 605. Pressing plate; 606. Fixing bracket; 607. Limiting groove; 608. Limiting block; 609. Compression spring; 7. Protective frame. Detailed Implementation

[0020] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0021] Example 1

[0022] like Figure 1-5 As shown, this is the first embodiment of the present invention. This embodiment provides a blade assembly for a drum chipper, including a blade body 1. A fixing frame 2 is detachably connected to both sides of the blade body 1. Ventilation holes 3 are provided at the front and rear ends of the inner cavity of the fixing frame 2. A fan 4 is provided on one side of the inner cavity of the ventilation hole 3. A fixing unit 6 is provided in the inner cavity of the fixing frame 2. The fixing unit 6 includes mounting holes 601, which are located at the front and rear ends of the top sides of the blade body 1. Through holes 602 are provided at the front and rear ends of the bottom of the fixing frame 2. A locking post 603 is slidably connected to the inner cavity of the through hole 602. A locking groove 604 is provided at the front and rear ends of the top of the inner cavity of the fixing frame 2. The top of the locking post 603 extends into the inner cavity of the locking groove 604 and engages with the inner cavity of the locking groove 604.

[0023] like Figure 1-5 As shown, the blade body 1 is the main component for cutting wood, while the fixing frame 2 is used to securely install the internal components on both sides of the blade body 1. The fan 4 forces convection through the ventilation hole 3, accelerating the airflow between the blade body 1 and the fixing frame 2, further enhancing the heat dissipation effect and preventing the blade body 1 from being affected by excessive temperature, thus affecting its service life. The mounting hole 601, through hole 602, locking post 603, and locking groove 604 work together to securely fix the fixing frame 2 to the surface of the blade body 1. The engagement of the locking post 603 and the locking groove 604 ensures the stability of the fixing frame 2 on the surface of the blade body 1.

[0024] Example 2

[0025] Reference Figure 2 , 3 4 and 5 represent the second embodiment of this utility model, which is based on the previous embodiment.

[0026] In this embodiment, positioning blocks 5 are fixedly connected to both sides of the top of the blade body 1 and to the front end of the fixing frame 2, and protective frames 7 are fixedly connected to the surface of the ventilation hole 3 and to the side of the two fixing frames 2 that are close to each other. There are four protective frames 7.

[0027] Pressing plates 605 are provided on the opposite sides of the two fixed frames 2. Fixing brackets 606 are fixedly connected to the front and back of the pressing plates 605. The bottom of the clamping post 603 is fixedly connected to the top of the fixing bracket 606.

[0028] like Figure 2 , 3 As shown in Figure 4, the positioning block 5 is used to ensure the correct installation position of the blade body 1 within the fixing frame 2, while the protective frame 7 is used to protect the ventilation hole 3 and the fan 4, preventing sawdust or other impurities generated during the cutting process from entering and blocking the ventilation channel. The pressing plate 605 and the fixing bracket 606 work together to move the operating pin 603 up and down, thereby fixing and releasing the fixing frame 2 on the surface of the blade body 1.

[0029] Example 3

[0030] Reference Figure 3 and 4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0031] In this embodiment, limit grooves 607 are provided at the front and rear ends of the two fixed frames 2 on the opposite side. Limit blocks 608 are slidably connected to the inner cavity of the limit grooves 607. One end of the limit block 608 extends to the outside of the limit grooves 607 and is fixedly connected to the fixed frame 606.

[0032] A compression spring 609 is fixedly connected to the bottom of the limiting block 608, and the bottom of the compression spring 609 is fixedly connected to the bottom of the inner cavity of the limiting groove 607.

[0033] like Figure 3 and 4 As shown, the cooperation between the limiting groove 607 and the limiting block 608 restricts the movement range of the fixing frame 606 and the locking post 603. The compression spring 609 provides an upward elastic force to the limiting block 608, so that the locking post 603 can be tightly engaged in the locking groove 604.

[0034] During use, a space is reserved in the chipper for the fixed frame 2. The blade body 1 is fixed to the cutter roller with a fly knife bolt. After the chipper is started, the cutter roller drives the blade body 1 to rotate, cutting the added wood. During the cutting process, the fan 4 can be started through the external controller. When the fan 4 is running, it can accelerate the air circulation speed on the surface of the blade body 1, thereby accelerating the heat dissipation of the blade body 1. When the blade body 1 is worn out and needs to be replaced, the blade body 1 is first removed from the chipper. After removal, the pressing plate 605 is pressed in conjunction with the fixed frame 606 to move the locking post 603 downward. Until it is removed from the inside of the mounting hole 601, the compression spring 609 will deform due to the pressure. After it is removed, the fixing frame 2 can be removed from the surface of the blade body 1. After removal, the fixing frame 2 is installed on the side of the new blade body 1. Release the pressing plate 605. At this time, the pressure on the compression spring 609 disappears and resets. The reset force of the compression spring 609 drives the locking pin 603 to reset, so that the locking pin 603 passes through the mounting hole 601 and is inserted into the inner cavity of the locking slot 604. The fixing frame 2 can be repositioned. After installation, the blade body 1 can be reinstalled into the chipper for continued use.

[0035] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0036] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A blade assembly for a drum chipper, comprising a blade body (1), characterized in that: Both sides of the blade body (1) are detachably connected to a fixing frame (2). The front and rear ends of the inner cavity of the fixing frame (2) are provided with ventilation holes (3). A fan (4) is provided on one side of the inner cavity of the ventilation hole (3). The inner cavity of the fixing frame (2) is provided with a fixing unit (6). The fixing unit (6) includes a mounting hole (601). The mounting hole (601) is opened at the front and rear ends of the top sides of the blade body (1). The front and rear ends of the bottom of the fixing frame (2) are provided with through holes (602). The inner cavity of the through hole (602) is slidably connected with a locking post (603). The front and rear ends of the top of the inner cavity of the fixing frame (2) are provided with a locking groove (604). The top of the locking post (603) extends into the inner cavity of the locking groove (604) and engages with the inner cavity of the locking groove (604).

2. The blade assembly of the drum chipper as described in claim 1, characterized in that: A pressing plate (605) is provided on the side of each of the two fixed frames (2) that are far apart. A fixing frame (606) is fixedly connected to the front and back of the pressing plate (605). The bottom of the card post (603) is fixedly connected to the top of the fixing frame (606).

3. The blade assembly of the drum chipper as described in claim 2, characterized in that: Limiting grooves (607) are provided at the front and rear ends of the two fixed frames (2) on opposite sides. A limiting block (608) is slidably connected to the inner cavity of the limiting groove (607). One end of the limiting block (608) extends to the outside of the limiting groove (607) and is fixedly connected to the fixing frame (606).

4. The blade assembly of the drum chipper as described in claim 3, characterized in that: A compression spring (609) is fixedly connected to the bottom of the limiting block (608), and the bottom of the compression spring (609) is fixedly connected to the bottom of the inner cavity of the limiting groove (607).

5. The blade assembly of the drum chipper as described in claim 1, characterized in that: Positioning blocks (5) are fixedly connected to both sides of the top of the blade body (1) and to the front end of the fixing frame (2). Protective frames (7) are fixedly connected to the surface of the ventilation hole (3) and to the side of the two fixing frames (2) that are close to each other. There are four protective frames (7).

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