Self-locking structure based on chipping machine fly cutter installation
By designing a self-locking structure on the chipper's fly knife, and utilizing the combination of the locking mechanism and fastening bolts, the problem of fly knife blades loosening due to vibration is solved, achieving stable blade fixation and normal operation.
Patent Information
- Application Number
- CN202520482823.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-19
AI Technical Summary
The blades of existing chippers are prone to loosening and falling off due to unstable fastening bolts during operation, which affects normal operation.
A locking mechanism consisting of a support plate, a limit plate, a limit rod, a limit hole, a positioning hole, a positioning pin, and a spring, combined with fastening bolts, is used to achieve self-locking fixation between the pressure plate and the blade holder, thereby enhancing the stability of the blade.
It effectively prevents the blade from loosening or falling off due to vibration, ensuring the stability and normal operation of the blade during the chipping process.
Smart Images

Figure CN223948109U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of chipper flying knife fixing equipment, in particular to a self-locking structure based on chipper flying knife installation. BACKGROUND
[0002] Chipper flying knife is one of the key components of chipper, mainly used for cutting wood into thin slices, chipper is widely used in the material preparation section in the production process of textile, papermaking, pulping, wood-based panel and other industries, flying knife is usually composed of blade, cutter roll / cutter disc, pressing plate, cutter seat and other components, the cutter roll / cutter disc drives the blade to cut wood through high-speed rotation;
[0003] The blade of flying knife is usually fixed on the cutter seat by the cooperation of fastening bolt and pressing plate, however, only fixing the blade of flying knife by bolt may cause instability, strong vibration may occur in the working process of chipper, and the vibration may cause the fastening bolt of the blade to gradually loosen, resulting in the blade falling off, thereby affecting the normal operation of the chipper.
[0004] Therefore, the utility model provides a self-locking structure based on chipper flying knife installation to solve the above problems. UTILITY MODEL CONTENTS
[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:
[0006] A self-locking structure based on chipper flying knife installation, including cutter roll, the surface of cutter roll is fixedly connected with cutter seat, the surface of cutter seat is installed with pressing plate, the pressing plate and cutter seat are installed with blade, the cutter seat and pressing plate are used for providing support for the blade, the both ends of cutter seat and pressing plate are provided with locking mechanism, the locking mechanism includes support plate, limiting plate, limiting rod, limiting hole, positioning hole, positioning pin and spring, the locking mechanism is used for fixing cutter seat and pressing plate, the support plate is fixedly connected with pressing plate, the limiting plate is fixedly connected with cutter seat, the limiting hole is opened in the surface of limiting plate, the positioning hole is opened in the surface of limiting rod, one end of limiting rod is fixedly connected with support plate, the other end of limiting rod extends to the inner cavity of limiting hole and is movably connected with the inner cavity of limiting hole, one end of positioning pin penetrates limiting plate and extends to the inner cavity of positioning hole and is movably connected with the inner cavity of positioning hole, and the both ends of spring are fixedly connected with positioning pin and limiting plate respectively.
[0007] Further, in the utility model, the both ends of spring are fixedly connected with positioning pin and limiting plate respectively, and one end of limiting rod and positioning pin is provided as inclined surface.
[0008] Further, in the utility model, the surface of pressing plate is installed with fastening bolt, and the fastening bolt is used for fixing the blade.
[0009] Further, in the utility model, the surface of the tool holder is provided with a threaded hole, and the surface of the pressing plate is provided with a guide hole.
[0010] Further, in the utility model, one end of the fastening bolt penetrates through the guide hole and the blade and extends to the inner cavity of the threaded hole, and is in threaded connection with the inner cavity of the threaded hole.
[0011] Further, in the utility model, the surface of the blade is provided with an adjusting hole, the fastening bolt penetrates through the inner cavity of the adjusting hole, and the adjusting hole is used for adjusting the extension length of the blade.
[0012] Beneficial effects, the utility model has following beneficial effects:
[0013] The utility model discloses a supporting plate, a limiting plate, a limiting rod, a limiting hole, a positioning hole, a positioning pin and a spring cooperate, realize the self-locking fixing between the pressing plate and the tool holder, through the common action of locking mechanism and fastening bolt, the stability of the blade during the working process of the chipper is greatly improved, the situation that the blade is loosened or falls off due to vibration is effectively prevented, and the stability of the blade during the chip process is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the main view structural schematic drawing of the utility model, and
[0015] Figure 2 It is the separation state structure schematic drawing of the tool holder and the pressing plate of the utility model, and
[0016] Figure 3 It is the separation state structure schematic drawing of the locking mechanism of the utility model, and
[0017] Figure 4 It is the separation state structure schematic drawing of the locking mechanism of the utility model, and Figure 1 It is the partial enlarged structure schematic drawing of A place in the utility model.
[0018] In the drawing,
[0019] 1, knife roll;2, tool holder;3, pressing plate;4, blade;5, locking mechanism;51, supporting plate;52, limiting plate;53, limiting rod;54, limiting hole;55, positioning hole;56, positioning pin;57, spring;6, fastening bolt;7, guide hole;8, threaded hole;9, adjusting hole. SPECIFIC EMBODIMENTS
[0020] In order to understand the technical content of the utility model more, specific embodiments are raised and the following is described with the attached drawings. In the present disclosure, aspects of the utility model are described with reference to the attached drawings, which show many embodiments of the description. The embodiments of the present disclosure are not necessarily defined in all aspects including the utility model. It should be understood that the above-mentioned various concepts and embodiments, as well as those concepts and embodiments described in more detail below, can be implemented in any one of many ways, because the concepts and embodiments disclosed by the utility model are not limited to any implementation. In addition, some aspects of the utility model can be used alone or in any appropriate combination with other aspects of the utility model.
[0021] Embodiment 1
[0022] As Figures 1-3 shown, the first embodiment of the utility model provides a self-locking structure based on the installation of the flying knife of the chipper, which comprises a knife roll 1, the surface of the knife roll 1 is fixedly connected with a knife seat 2, the surface of the knife seat 2 is installed with a pressing plate 3, the pressing plate 3 and the knife seat 2 are installed with a blade 4, the knife seat 2 and the pressing plate 3 are used to provide support for the blade 4, the both ends of the knife seat 2 and the pressing plate 3 are provided with a locking mechanism 5, the locking mechanism 5 comprises a supporting plate 51, a limiting plate 52, a limiting rod 53, a limiting hole 54, a positioning hole 55, a positioning pin 56 and a spring 57, the locking mechanism 5 is used to fix the knife seat 2 and the pressing plate 3, the supporting plate 51 is fixedly connected with the pressing plate 3, the limiting plate 52 is fixedly connected with the knife seat 2, the limiting hole 54 is opened on the surface of the limiting plate 52, the positioning hole 55 is opened on the surface of the limiting rod 53, one end of the limiting rod 53 is fixedly connected with the supporting plate 51, the other end of the limiting rod 53 extends to the inner cavity of the limiting hole 54 and is movably connected with the inner cavity of the limiting hole 54, one end of the positioning pin 56 penetrates through the limiting plate 52 and extends to the inner cavity of the positioning hole 55 and is movably connected with the inner cavity of the positioning hole 55, and the both ends of the spring 57 are fixedly connected with the positioning pin 56 and the limiting plate 52 respectively.
[0023] As Figures 1-3 shown, through the synergistic effect of the supporting plate 51, the limiting plate 52, the limiting rod 53, the limiting hole 54, the positioning hole 55, the positioning pin 56 and the spring 57, the self-locking fixation between the pressing plate 3 and the knife seat 2 is realized, when the pressing plate 3 is put down and pressed tightly against the blade 4, one end of the limiting rod 53 will be inserted into the limiting hole 54, at the same time, the positioning pin 56 will automatically penetrate into the positioning hole 55 under the action of the spring 57, thereby locking the position of the limiting rod 53, preventing it from loosening due to vibration, so as to ensure the stability of the blade 4 during the chip cutting process.
[0024] Embodiment 2
[0025] Referring Figures 1-3This is the second embodiment of the present invention, which is based on the previous embodiment.
[0026] In this embodiment, the two ends of the spring 57 are fixedly connected to the positioning pin 56 and the limiting plate 52 respectively, and one end of the limiting rod 53 and the positioning pin 56 are both set as inclined surfaces.
[0027] The surface of the pressure plate 3 is fitted with fastening bolts 6, which are used to fix the blade 4.
[0028] The surface of the tool holder 2 is provided with a threaded hole 8, and the surface of the pressure plate 3 is provided with a guide hole 7.
[0029] One end of the fastening bolt 6 passes through the guide hole 7 and the blade 4 and extends into the inner cavity of the threaded hole 8, and is threadedly connected to the inner cavity of the threaded hole 8.
[0030] The blade 4 has an adjustment hole 9 on its surface, and the fastening bolt 6 passes through the inner cavity of the adjustment hole 9. The adjustment hole 9 is used to adjust the extension length of the blade 4.
[0031] like Figures 1-3 As shown, one end of both the limiting rod 53 and the positioning pin 56 is set as an inclined surface, which helps the positioning pin 56 to overcome the elastic force of the spring 57 and enter or exit the positioning hole 55 more easily during installation and disassembly. The fastening bolt 6 plays an important auxiliary fixing role. One end of the fastening bolt 6 passes through the guide hole 7 on the pressure plate 3 and the adjustment hole 9 on the blade 4, and then screws into the threaded hole 8 on the blade holder 2, firmly fixing the blade 4 between the blade holder 2 and the pressure plate 3. Through the combined action of the locking mechanism 5 and the fastening bolt 6, the stability of the blade 4 during the operation of the chipper is greatly improved, effectively preventing the blade 4 from loosening or falling off due to vibration. The cooperation between the fastening bolt 6 and the adjustment hole 9 allows the extension length of the blade 4 to be flexibly adjusted according to actual needs, meeting the requirements of different chipping thicknesses.
[0032] In use, when the blade 4 needs to be installed or disassembled, the positioning pin 56 is withdrawn from the positioning hole 55 by external force to overcome the elastic force of the spring 57, at this time the limiting rod 53 can be freely moved in the limiting hole 54, the position of the pressing plate 3 is adjusted, one end of the limiting rod 53 is aligned with the limiting hole 54 and inserted, then the external force is released, the positioning pin 56 is automatically reset under the action of the spring 57 and penetrates into the positioning hole 55, the limiting rod 53 and the limiting plate 52 are fixed, so that the pressing plate 3 and the tool holder 2 are tightly fixed together, the clamping and self-locking of the blade 4 are completed, the fastening bolt 6 passes through the guide hole 7 on the pressing plate 3 and the adjusting hole 9 on the blade 4, and then is screwed into the threaded hole 8 on the tool holder 2, the tool holder 2 and the pressing plate 3 jointly provide support for the blade 4, and the stability of the blade 4 in the slicing process is ensured, the locking mechanism 5 and the fastening bolt 6 ensure the tight fixing of the pressing plate 3 and the tool holder 2, and prevent the blade 4 from loosening in the slicing process.
[0033] The standard parts used in the application file can be purchased from the market, and can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical, parts and equipment adopt the conventional type in the prior art, the control mode is automatically controlled through the controller, the control circuit of the controller can be realized by simple programming of the person skilled in the art, which belongs to the common knowledge in the art, and the application is mainly used to protect the mechanical device, so the control mode and the circuit connection are not explained in detail.
[0034] Although the utility model has disclosed as above with preferred embodiments, it is not used to limit the utility model. Those skilled in the art without departing from the spirit and scope of the utility model can make various changes and decorations. Therefore, the protection scope of the utility model is defined by the claims.
Claims
1. A self-locking structure based on the installation of a flying knife of a chipper, comprising a knife roll (1), characterized in that: The surface of the knife roller (1) is fixedly connected with a knife seat (2), the surface of the knife seat (2) is mounted with a pressing plate (3), the pressing plate (3) and the knife seat (2) are mounted with a blade (4), the knife seat (2) and the pressing plate (3) are used for providing support for the blade (4), the both ends of the knife seat (2) and the pressing plate (3) are provided with locking mechanisms (5), the locking mechanism (5) comprises a supporting plate (51), a limiting plate (52), a limiting rod (53), a limiting hole (54), a positioning hole (55), a positioning pin (56) and a spring (57), the locking mechanism (5) is used for fixing the knife seat (2) and the pressing plate (3), the supporting plate (51) is fixedly connected with the pressing plate (3), the limiting plate (52) is fixedly connected with the knife seat (2), the limiting hole (54) is formed in the surface of the limiting plate (52), the positioning hole (55) is formed in the surface of the limiting rod (53), one end of the limiting rod (53) is fixedly connected with the supporting plate (51), the other end of the limiting rod (53) extends to the inner cavity of the limiting hole (54) and is movably connected with the inner cavity of the limiting hole (54), one end of the positioning pin (56) penetrates through the limiting plate (52) and extends to the inner cavity of the positioning hole (55) and is movably connected with the inner cavity of the positioning hole (55), and the both ends of the spring (57) are fixedly connected with the positioning pin (56) and the limiting plate (52) respectively.
2. The self-locking structure based on the installation of a flying knife of a chipper according to claim 1, characterized in that: The both ends of the spring (57) are fixedly connected with the positioning pin (56) and the limiting plate (52) respectively, and one end of the limiting rod (53) and the positioning pin (56) is provided as an inclined surface.
3. The self-locking structure based on the installation of a flying knife of a chipper according to claim 1, characterized in that: The surface of the pressing plate (3) is mounted with a fastening bolt (6), and the fastening bolt (6) is used for fixing the blade (4).
4. The self-locking structure based on the installation of the flying knife of the chipper according to claim 3, characterized in that: The surface of the knife seat (2) is provided with a threaded hole (8), and the surface of the pressing plate (3) is provided with a guide hole (7).
5. The self-locking structure based on the installation of the flying knife of the chipper according to claim 3, characterized in that: One end of the fastening bolt (6) penetrates through the guide hole (7) and the blade (4) and extends to the inner cavity of the threaded hole (8) and is threadedly connected with the inner cavity of the threaded hole (8).
6. The self-locking structure based on the installation of a flying knife of a chipper according to claim 3, characterized in that: The surface of the blade (4) is provided with an adjusting hole (9), the fastening bolt (6) penetrates through the inner cavity of the adjusting hole (9), and the adjusting hole (9) is used for adjusting the extension length of the blade (4).