A multi-row cutter for a shredder
Patent Information
- Application Number
- CN202522117433.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0004]针对现有技术的不足，本实用新型的目的在于提供一种撕碎机用多排刀齿，具备方便维护的优点，解决了现有多排刀齿在实际运维中存在明显缺陷：传统设计中，刀齿安装的连接轴拆卸困难，需要使用专用工具拆除焊接点、敲打过盈配合结构，将外壳拆卸下来，从而将刀齿安装的连接轴拆卸下来，随后再对刀齿进行维护工作，导致操作过程中费时费力，严重影响设备连续作业效率的问题
1、本实用新型转动壳体正面的转柄，带动丝杆在壳体内腔前侧、后侧顶部的第二轴承支撑下旋转，丝杆表面螺纹连接的螺纹套，受内腔滑动连接的滑杆限位，无法随丝杆同步转动，只能沿滑杆水平移动，进而带动螺纹套一侧的限位销脱离插座，解除框架与固定架的横向固定；框架通过连接销与固定座插接，此时推动框架即可使连接销脱离固定座，完成框架完全解锁，向左侧拉动矩形杆，矩形杆带动棱柱与连接盘同步左移，压缩空心块内腔的弹簧，同时连接盘右侧的插销脱离固定块；矩形杆一侧固定的阻尼器随矩形杆移动拉伸，此时向上拉动连接架，使其脱离与第一轴承、支架的插接，完成连接架与第一轴承的解锁，第一轴承内圈与连接轴插接、框架与连接轴活动连接均已解锁，直接将连接轴从第一轴承内圈与框架之间抽出，即可对连接轴表面的刀齿本体进行维护操作。
Smart Images
Figure CN224912514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shredder technology, specifically to a multi-row blade for a shredder. Background Technology
[0002] In the fields of industrial solid waste crushing and waste material recycling, the shredder's blades, as the core crushing component, directly determine the material crushing efficiency and finished particle size. To adapt to high-load and large-volume crushing needs, the current mainstream shredders generally adopt a multi-row blade structure. Multiple sets of blades are fixed on the surface of the connecting shaft at a specific interval. The high-speed rotation of the connecting shaft drives the blades to apply shearing and tearing forces to the material, thereby achieving the crushing of various materials such as plastics, metals, and rubber.
[0003] However, existing multi-row blades have obvious drawbacks in actual operation and maintenance: in traditional designs, the connecting shaft for mounting the blades is difficult to disassemble. Special tools are needed to remove the welding points and hammer the interference fit structure to disassemble the outer shell, thereby removing the connecting shaft for mounting the blades. Then, maintenance work on the blades is carried out, which is time-consuming and labor-intensive, seriously affecting the continuous operation efficiency of the equipment. To address this, we propose a multi-row blade for shredders. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a multi-row blade for shredders that offers the advantage of convenient maintenance. This solves the significant defects of existing multi-row blades in actual operation and maintenance: In traditional designs, the connecting shaft for blade mounting is difficult to disassemble, requiring the use of special tools to remove welding points and hammer the interference fit structure to disassemble the outer casing, thereby removing the connecting shaft for blade mounting. Subsequently, maintenance work on the blades is carried out, resulting in time-consuming and labor-intensive operations that seriously affect the continuous operation efficiency of the equipment.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-row blade for a shredder, comprising a support, a first bearing inserted into one side of the support, a connecting frame inserted into the top of the outer ring of the first bearing, a fixing frame fixedly connected to the left side of the support, a hollow block fixedly connected to the right side of the top of the fixing frame, a spring fixedly connected to the left side of the inner cavity of the hollow block, a connecting plate fixedly connected to one side of the spring, a prism fixedly connected to the left side of the connecting plate, a rectangular rod fixedly connected to the left side of the prism, and a pin fixedly connected to the right side of the connecting plate. A fixing block is inserted into the surface of the pin, and the bottom of the fixing block is fixedly connected to the connecting frame. A frame is provided on one side of the fixing frame, and a connecting pin is fixedly connected to one side of the frame. A fixing seat is inserted into the surface of the connecting pin, and one side of the fixing seat is fixedly connected to the fixing frame. A housing is fixedly connected to the top of the frame, and a lead screw is movably connected to one side of the housing. A threaded sleeve is threaded onto the surface of the lead screw, and a limit pin is fixedly connected to one side of the threaded sleeve. A socket is inserted into the surface of the limit pin, and the bottom of the socket is fixedly connected to the fixing frame.
[0006] Preferably, the inner ring of the first bearing is inserted with a connecting shaft, the left side of the surface of the connecting shaft is movably connected to the frame, the left side of the connecting shaft is fixedly connected with an insert shaft, and the surface of the connecting shaft is fixedly connected with a tooth body.
[0007] Preferably, a damper is fixedly connected to one side of the rectangular rod, and one side of the damper is fixedly connected to the hollow block.
[0008] Preferably, the top of the front and rear sides of the inner cavity of the housing is movably connected to the lead screw via a second bearing, and a rotating handle is fixedly connected to the front of the lead screw.
[0009] Preferably, the inner cavity of the threaded sleeve is slidably connected to a slide rod, and both the front and back sides of the slide rod are fixedly connected to the housing.
[0010] Preferably, a fixing plate is fixedly connected to the other side of the fixing frame, a first auxiliary shredding plate is fixedly connected to one side of the fixing plate, a support base is fixedly connected to one side of the bracket, and a second auxiliary shredding plate is fixedly connected to one side of the support base.
[0011] Preferably, a first insert rod is fixedly connected to the bottom of the first bearing, and the bottom of the first insert rod is inserted into the bracket; a second insert rod is fixedly connected to the top of the first bearing, and the top of the second insert rod is inserted into the connecting frame; a third insert rod is fixedly connected to one side of the top of the bracket, and the top of the third insert rod is inserted into the connecting frame.
[0012] Compared with the prior art, this utility model provides a multi-row blade for a shredder, which has the following beneficial effects: 1. The rotating handle on the front of the housing causes the lead screw to rotate under the support of the second bearings on the front and rear top of the housing cavity. The threaded sleeve connected to the lead screw is limited by the sliding rod connected to the inner cavity and cannot rotate synchronously with the lead screw. It can only move horizontally along the sliding rod, thereby causing the limiting pin on one side of the threaded sleeve to disengage from the socket, releasing the lateral fixation between the frame and the fixing bracket. The frame is inserted into the fixing seat through the connecting pin. At this time, pushing the frame will cause the connecting pin to disengage from the fixing seat, completing the complete unlocking of the frame. Pulling the rectangular rod to the left causes the prism and the connecting plate to move synchronously to the left, compressing the spring in the inner cavity of the hollow block. At the same time, the pin on the right side of the connecting plate disengages from the fixing block. The damper fixed on one side of the rectangular rod is stretched as the rectangular rod moves. At this time, pulling the connecting bracket upward will disengage it from the insertion of the first bearing and the bracket, completing the unlocking of the connecting bracket and the first bearing. The insertion of the inner ring of the first bearing into the connecting shaft and the movable connection between the frame and the connecting shaft are both unlocked. The connecting shaft can be directly pulled out from between the inner ring of the first bearing and the frame to perform maintenance operations on the tooth body on the surface of the connecting shaft.
[0013] 2. This utility model connects an external drive device to a plug shaft. After the drive device is started by an external controller, the plug shaft drives the connecting shaft to rotate synchronously. The inner ring of the connecting shaft is inserted into the first bearing, and the left side of its surface is movably connected to the frame. It maintains stable rotation under the dual support of the first bearing and the frame. The multi-row blade body fixed on the surface of the connecting shaft rotates at high speed with the connecting shaft, forming the shearing force required for crushing. After the material is fed into the equipment, the rotating blade body applies a longitudinal shearing force to the material. At the same time, the first auxiliary shredding plate connected to the other side of the fixed frame through a fixed plate and the second auxiliary shredding plate connected to the support side of the bracket through a support seat form limiting support from both sides and below the material. Under the combined action of the shearing force of the blade body and the blocking force of the auxiliary shredding plate, the material is torn and squeezed into the required particle size. After crushing, the material is discharged from the bottom of the equipment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a schematic cross-sectional view of the shell structure of this utility model; Figure 4 This is a cross-sectional view of the hollow block structure of this utility model.
[0015] In the diagram: 1. Bracket; 2. First bearing; 3. Connecting frame; 4. Fixing frame; 5. Hollow block; 6. Spring; 7. Connecting disc; 8. Prism; 9. Rectangular rod; 10. Damper; 11. Pin; 12. Fixing block; 13. Frame; 14. Connecting pin; 15. Fixing seat; 16. Housing; 17. Lead screw; 18. Threaded sleeve; 19. Limiting pin; 20. Socket; 21. Connecting shaft; 22. Insert shaft; 23. Fixing plate; 24. First auxiliary shredding plate; 25. Support seat; 26. Second auxiliary shredding plate; 27. Blade body. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example 1:
[0018] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model provides a multi-row blade for a shredder, including a bracket 1. A first bearing 2 is inserted into one side of the bracket 1, and a connecting frame 3 is inserted into the top of the outer ring of the first bearing 2. A fixing frame 4 is fixedly connected to the left side of the bracket 1. A hollow block 5 is fixedly connected to the right side of the top of the fixing frame 4. A spring 6 is fixedly connected to the left side of the inner cavity of the hollow block 5. A connecting plate 7 is fixedly connected to one side of the spring 6. A prism 8 is fixedly connected to the left side of the connecting plate 7. A rectangular rod 9 is fixedly connected to the left side of the prism 8. A pin 11 is fixedly connected to the right side of the connecting plate 7. A fixing block 12 is inserted into the surface of the pin 11. The bottom of the fixing block 12 is fixedly connected to the connecting frame 3. A frame 13 is provided on one side of the fixing frame 4. A connecting pin 14 is fixedly connected to one side of the frame 13. A fixing seat 15 is inserted into the surface of the connecting pin 14. One side of the fixing seat 15 is fixedly connected to the fixing frame 4. A housing 16 is fixedly connected to the top of the frame 13. A lead screw 17 is movably connected to one side of the housing 16. A threaded sleeve 18 is threadedly connected to the surface of the lead screw 17. A limit pin 19 is fixedly connected to one side of the threaded sleeve 18. A socket 20 is inserted into the surface of the limit pin 19. The bottom of the socket 20 is fixedly connected to the fixed frame 4. A damper 10 is fixedly connected to one side of the rectangular rod 9. A damper 10 is fixedly connected to one side of the hollow block 5. The top of the front and rear sides of the inner cavity of the housing 16 are movably connected to the lead screw 17 through a second bearing. A rotating handle is fixedly connected to the front of the lead screw 17. A sliding rod is slidably connected to the inner cavity of the threaded sleeve 18. The front and back sides of the sliding rod are fixedly connected to the housing 16. A first insert rod is fixedly connected to the bottom of the first bearing 2. The bottom of the first insert rod is inserted into the bracket 1. A second insert rod is fixedly connected to the top of the first bearing 2. The top of the second insert rod is inserted into the connecting frame 3. A third insert rod is fixedly connected to one side of the top of the bracket 1. The top of the third insert rod is inserted into the connecting frame 3.
[0019] The specific function of this technical solution is as follows: Rotating the handle on the front of the housing 16 causes the lead screw 17 to rotate under the support of the second bearings on the front and rear top sides of the inner cavity of the housing 16. The threaded sleeve 18, threaded to the surface of the lead screw 17, is limited by the sliding rod connected to the inner cavity and cannot rotate synchronously with the lead screw 17. It can only move horizontally along the sliding rod, thereby causing the limiting pin 19 on one side of the threaded sleeve 18 to disengage from the socket 20, releasing the lateral fixation between the frame 13 and the fixing bracket 4. The frame 13 is connected to the fixing seat 15 via the connecting pin 14. At this time, pushing the frame 13 will cause the connecting pin 14 to disengage from the fixing seat 15, completing the complete unlocking of the frame 13. Pulling the rectangular... The rectangular rod 9 drives the prism 8 and the connecting plate 7 to move to the left in sync, compressing the spring 6 in the inner cavity of the hollow block 5. At the same time, the pin 11 on the right side of the connecting plate 7 disengages from the fixing block 12. The damper 10 fixed on one side of the rectangular rod 9 moves and stretches with the rectangular rod 9. At this time, the connecting frame 3 is pulled upward to disengage it from the first bearing 2 and the bracket 1, thus unlocking the connecting frame 3 from the first bearing 2. The inner ring of the first bearing 2 is now connected to the connecting shaft 21, and the frame 13 is now movably connected to the connecting shaft 21. The connecting shaft 21 can be directly pulled out from between the inner ring of the first bearing 2 and the frame 13 to perform maintenance operations on the tooth body 27 on the surface of the connecting shaft 21. Example 2:
[0020] Based on Embodiment 1, this utility model is as follows: Figure 1 and Figure 2 As shown, a connecting shaft 21 is inserted into the inner ring of the first bearing 2. The left side of the surface of the connecting shaft 21 is movably connected to the frame 13. An insert shaft 22 is fixedly connected to the left side of the connecting shaft 21. A blade body 27 is fixedly connected to the surface of the connecting shaft 21. A fixing plate 23 is fixedly connected to the other side of the fixing frame 4. A first auxiliary shredding plate 24 is fixedly connected to one side of the fixing plate 23. A support seat 25 is fixedly connected to one side of the bracket 1. A second auxiliary shredding plate 26 is fixedly connected to one side of the support seat 25.
[0021] The specific function of this technical solution is as follows: The external drive device is connected to the insertion shaft 22. After the drive device is started by the external controller, the insertion shaft 22 drives the connecting shaft 21 to rotate synchronously. The inner ring of the connecting shaft 21 is inserted into the first bearing 2, and its left side is movably connected to the frame 13. It maintains stable rotation under the dual support of the first bearing 2 and the frame 13. The multi-row blade body 27 fixed on the surface of the connecting shaft 21 rotates at high speed with the connecting shaft 21, generating the shearing force required for crushing. After the material is fed into the equipment, the rotating blade body 27 applies a longitudinal shearing force to the material. Simultaneously, the first auxiliary shredding plate 24 connected to the other side of the fixed frame 4 via the fixed plate 23, and the second auxiliary shredding plate 26 connected to one side of the support 1 via the support seat 25, form limiting supports from both sides and below the material. Under the combined action of the shearing force of the blade body 27 and the blocking force of the auxiliary shredding plate, the material is torn and squeezed into particles of the required size. After crushing, the material is discharged from the bottom of the equipment.
[0022] Working principle: Rotating the handle on the front of the housing 16 causes the lead screw 17 to rotate under the support of the second bearings on the front and rear top sides of the inner cavity of the housing 16. The threaded sleeve 18, which is threaded to the surface of the lead screw 17, is limited by the sliding rod connected to the inner cavity and cannot rotate synchronously with the lead screw 17. It can only move horizontally along the sliding rod, thereby causing the limiting pin 19 on one side of the threaded sleeve 18 to disengage from the socket 20, releasing the lateral fixation between the frame 13 and the fixing bracket 4. The frame 13 is inserted into the fixing seat 15 through the connecting pin 14. At this time, pushing the frame 13 will cause the connecting pin 14 to disengage from the fixing seat 15, completing the complete unlocking of the frame 13. Pull the rectangular rod 9 to the left. The rectangular rod 9 drives the prism 8 and the connecting plate 7 to move to the left in sync, compressing the spring 6 in the inner cavity of the hollow block 5. At the same time, the pin 11 on the right side of the connecting plate 7 disengages from the fixing block 12. The damper 10 fixed on one side of the rectangular rod 9 moves and stretches with the rectangular rod 9. At this time, the connecting frame 3 is pulled upward to disengage it from the first bearing 2 and the bracket 1, thus unlocking the connecting frame 3 from the first bearing 2. The inner ring of the first bearing 2 is now connected to the connecting shaft 21, and the frame 13 is now movably connected to the connecting shaft 21. The connecting shaft 21 can be directly pulled out from between the inner ring of the first bearing 2 and the frame 13 to perform maintenance on the tooth body 27 on the surface of the connecting shaft 21. The external drive device is connected to the insertion shaft 22. After the drive device is started by the external controller, the insertion shaft 22 drives the connecting shaft 21 to rotate synchronously. The inner ring of the connecting shaft 21 is inserted into the first bearing 2, and the left side of its surface is movably connected to the frame 13. It maintains stable rotation under the dual support of the first bearing 2 and the frame 13. The multi-row blade body 27 fixed on the surface of the connecting shaft 21 rotates at high speed with the connecting shaft 21, forming the shearing force required for crushing. After the material is fed into the equipment, the rotating blade body 27 applies longitudinal shearing force to the material. At the same time, the first auxiliary shredding plate 24 connected to the other side of the fixed frame 4 through the fixed plate 23 and the second auxiliary shredding plate 26 connected to the side of the support 1 through the support seat 25 form limiting support from both sides and below the material. Under the combined action of the shearing force of the blade body 27 and the blocking force of the auxiliary shredding plate, the material is torn and squeezed into the required particle size. After crushing, the material is discharged from the bottom of the equipment.
[0023] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0024] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A multi-row blade for a shredder, comprising a support (1), characterized in that: A first bearing (2) is inserted into one side of the bracket (1), and a connecting frame (3) is inserted into the top of the outer ring of the first bearing (2). A fixing frame (4) is fixedly connected to the left side of the bracket (1), and a hollow block (5) is fixedly connected to the right side of the top of the fixing frame (4). A spring (6) is fixedly connected to the left side of the inner cavity of the hollow block (5), and a connecting plate (7) is fixedly connected to one side of the spring (6). A prism (8) is fixedly connected to the left side of the connecting plate (7), and a rectangular rod (9) is fixedly connected to the left side of the prism (8). A pin (11) is fixedly connected to the right side of the connecting plate (7), and a fixing block (12) is inserted into the surface of the pin (11). The bottom of the fixing block (12) is connected to the connecting plate (7). The bracket (3) is fixedly connected. A frame (13) is provided on one side of the fixed bracket (4). A connecting pin (14) is fixedly connected to one side of the frame (13). A fixing seat (15) is inserted into the surface of the connecting pin (14). One side of the fixing seat (15) is fixedly connected to the fixed bracket (4). A housing (16) is fixedly connected to the top of the frame (13). A lead screw (17) is movably connected to one side of the housing (16). A threaded sleeve (18) is threadedly connected to the surface of the lead screw (17). A limit pin (19) is fixedly connected to one side of the threaded sleeve (18). A socket (20) is inserted into the surface of the limit pin (19). The bottom of the socket (20) is fixedly connected to the fixed bracket (4).
2. The multi-row blade for a shredder according to claim 1, characterized in that: The inner ring of the first bearing (2) is connected to a connecting shaft (21). The left side of the surface of the connecting shaft (21) is movably connected to the frame (13). The left side of the connecting shaft (21) is fixedly connected to a plug shaft (22). The surface of the connecting shaft (21) is fixedly connected to a tooth body (27).
3. The multi-row blade for a shredder according to claim 1, characterized in that: A damper (10) is fixedly connected to one side of the rectangular rod (9), and one side of the damper (10) is fixedly connected to the hollow block (5).
4. The multi-row blade for a shredder according to claim 1, characterized in that: The top of the front and rear sides of the inner cavity of the housing (16) are movably connected to the lead screw (17) through the second bearing, and the front of the lead screw (17) is fixedly connected to the rotating handle.
5. A multi-row blade for a shredder according to claim 1, characterized in that: The inner cavity of the threaded sleeve (18) is slidably connected to a slide rod, and the front and back sides of the slide rod are fixedly connected to the housing (16).
6. A multi-row blade for a shredder according to claim 1, characterized in that: A fixing plate (23) is fixedly connected to the other side of the fixing frame (4), a first auxiliary shredding plate (24) is fixedly connected to one side of the fixing plate (23), a support base (25) is fixedly connected to one side of the bracket (1), and a second auxiliary shredding plate (26) is fixedly connected to one side of the support base (25).
7. A multi-row blade for a shredder according to claim 1, characterized in that: The bottom of the first bearing (2) is fixedly connected to a first insert rod, and the bottom of the first insert rod is inserted into the bracket (1). The top of the first bearing (2) is fixedly connected to a second insert rod, and the top of the second insert rod is inserted into the connecting frame (3). The top of the bracket (1) is fixedly connected to a third insert rod, and the top of the third insert rod is inserted into the connecting frame (3).