A double-shaft staggered waste shearing and crushing device
The modular disassembly frame and docking strip design solves the problem of difficult maintenance of existing dual-shaft staggered waste shearing and crushing devices, enabling rapid disassembly and maintenance of the equipment, facilitating regular maintenance, and improving the stability and crushing efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN TIANZE PIPE IND CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-05
AI Technical Summary
Existing dual-shaft staggered waste shearing and crushing devices have problems with disassembly and maintenance during overhaul, especially the replacement of fixed blades, which is time-consuming and requires high technical skills from workers. In addition, the multi-side plate assembly design can easily lead to equipment instability and a decrease in crushing effect.
The modular design of the disassembly frame and docking strips, secured by fasteners, combined with staggered shearing and crushing shafts and bearing assemblies, ensures the stability and reliability of the equipment and facilitates quick disassembly and maintenance.
It improves the stability and ease of maintenance of the equipment, reduces the difficulty and time cost of maintenance, and at the same time improves the efficiency and uniformity of shearing and crushing.
Smart Images

Figure CN224321530U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shearing and crushing technology, and in particular to a dual-axis staggered waste shearing and crushing device. Background Technology
[0002] The twin-shaft staggered waste shearing and crushing device, commonly known as a twin-shaft shredder, is a highly efficient solid waste treatment equipment. The working principle of a twin-shaft shredder is based on the mutual shearing and tearing action between two opposing rotating blades. The two blade shafts are equipped with staggered blades. When the shafts rotate in opposite directions, the material is crushed through the shearing action of the blade edges and the tearing action of the blade teeth. The primary shearing method is the shearing action of adjacent moving blade edges, while the secondary shearing method is the tearing action of the moving blade teeth.
[0003] In practical maintenance applications of dual-shaft staggered waste shearing and crushing devices, the current shearing and crushing devices mainly employ two design methods for their housings: a one-piece design and a design composed of multiple side plates assembled together. While the one-piece design is robust, reliable, and boasts high mechanical strength and machining precision, extending equipment lifespan and saving maintenance costs, its structural integrity often results in a significant workload during maintenance. Especially when the fixed blades need repair or replacement, although each blade can be disassembled and installed independently, it still requires considerable time and demands a high level of technical skill from the workers.
[0004] While a box assembly using multiple side panels may offer greater flexibility in assembly and disassembly, it also consumes considerable time during actual maintenance due to its complex structure and numerous connecting parts. Furthermore, this design may lead to increased gaps in the assembly lines over long-term operation due to vibration and wear, thereby affecting the overall stability and crushing performance of the equipment. Utility Model Content
[0005] The main objective of this invention is to provide a dual-axis staggered waste shearing and crushing device, which can effectively solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A dual-shaft interleaved waste shearing and crushing device includes a support frame, a drive motor, a reducer, a connecting shaft, and a transmission gear. The drive motor and the reducer are mounted on the support frame, with the reducer located at the output end of the drive motor. The transmission gear is connected to the output shaft of the reducer via the connecting shaft.
[0008] The upper end of the support frame is connected to a first disassembly frame and a second disassembly frame via a mounting base. The joint of the first disassembly frame and the second disassembly frame is provided with a docking strip and a docking hole is provided at the docking strip. Fasteners are inserted into the docking holes to fix the first disassembly frame and the second disassembly frame.
[0009] The first disassembly frame is connected to the first shearing and crushing shaft via a bearing assembly, and the second disassembly frame is connected to the second shearing and crushing shaft via another bearing assembly. Lateral shearing blocks are installed on the inner walls of the first and second disassembly frames. The lateral shearing blocks, the first shearing and crushing shaft, and the second shearing and crushing shaft are designed in an alternating manner to realize the shearing and crushing operation of waste materials.
[0010] In an optional embodiment of this application, the first disassembly frame and the docking strip are designed as an integral unit, and the second disassembly frame and another docking strip are designed as an integral unit. The docking strips of the two disassembly frames are mutually compatible. The first disassembly frame and the second disassembly frame are designed as square frames, and the docking holes are directly opposite the openings on the bearing assembly.
[0011] In an optional embodiment of this application, a plurality of the lateral shear blocks are equidistantly distributed on the inner walls of the first disassembly frame and the second disassembly frame, and the lateral shear blocks are fixed on the first disassembly frame and the second disassembly frame by bolts, wherein the cross-section of the lateral shear blocks is trapezoidal.
[0012] In an optional embodiment of this application, both the first shearing and crushing shaft and the second shearing and crushing shaft are composed of shafts and shearing and crushing discs, with multiple shearing and crushing discs equidistantly distributed on the shafts, and the shearing and crushing discs of the first shearing and crushing shaft and the second shearing and crushing shaft are designed to be staggered.
[0013] In an optional embodiment of this application, the fastener includes a fastening bolt and a fastening nut. The fastening bolt is inserted into the mating holes of the bearing assembly, the first disassembly frame, the second disassembly frame, and the mating strip, and the fastening nut is used to fix the bearing assembly, the first disassembly frame, the second disassembly frame, and the mating strip.
[0014] In an optional embodiment of this application, the mounting base has an "L"-shaped cross-section and is fixed to the first and second disassembly frames by bolts, and is also fixed to the support frame by bolts.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] The modular design of the disassembly and assembly frame makes the assembly and disassembly of the equipment simple and quick. The first and second disassembly and assembly frames are fixed together by interlocking strips and fasteners. This modular design not only improves the stability and reliability of the equipment but also facilitates maintenance and replacement. When the equipment malfunctions or requires repair, relevant components can be quickly disassembled, reducing maintenance difficulty and time costs.
[0017] The design of the mating strips and mating holes ensures a tighter connection between the assembly and disassembly frames, guaranteeing the overall stability of the equipment. Simultaneously, the integrated design of the mating strips and the assembly / disassembly frames enhances the structural strength between components, improving the durability of the equipment.
[0018] The design of the shearing and crushing shafts and bearing assemblies significantly improves the shearing and crushing efficiency of the equipment. The first and second shearing and crushing shafts are connected to the disassembly frame via bearing assemblies, ensuring smooth shaft operation. The staggered design of the shearing and crushing discs enhances the uniformity and efficiency of shearing and crushing, enabling effective crushing of waste materials. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a diagram showing the overall structure of the present invention;
[0021] Figure 3 This is a diagram illustrating the disassembly and assembly frame, shearing and crushing shaft, and bearing assembly of this utility model.
[0022] Figure 4 This is a schematic diagram of the disassembly and assembly frame, shearing and crushing shaft, and bearing assembly of this utility model.
[0023] In the diagram: 1. Support frame; 2. Drive motor; 3. Reducer; 4. Connecting shaft; 5. Transmission gear; 6. First disassembly frame; 7. Second disassembly frame; 8. Connecting strip; 9. Connecting hole; 10. Mounting base; 11. Bearing assembly; 12. Fastener; 13. First shearing and crushing shaft; 14. Second shearing and crushing shaft; 15. Lateral shearing block. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] like Figure 1 - Figure 4As shown, a dual-shaft interleaved waste shearing and crushing device mainly consists of a support frame 1, a drive motor 2, a reducer 3, a connecting shaft 4, and a transmission gear 5. The drive motor 2 and the reducer 3 are mounted on the support frame 1, with the reducer 3 located at the output end of the drive motor 2. The transmission gear 5 is connected to the output shaft of the reducer 3 via the connecting shaft 4, thereby realizing the transmission of power.
[0026] The upper end of the support frame 1 is connected to a first disassembly frame 6 and a second disassembly frame 7 via a mounting base 10. A mating strip 8 is provided at the joint between the first disassembly frame 6 and the second disassembly frame 7, and a mating hole 9 is provided at the mating strip 8. By inserting fasteners 12 into the mating holes 9, the first disassembly frame 6 and the second disassembly frame 7 can be fixed, ensuring the stability and reliability of the device.
[0027] The first disassembly frame 6 is connected to the first shearing and crushing shaft 13 via a bearing assembly 11, and the second disassembly frame 7 is connected to the second shearing and crushing shaft 14 via another bearing assembly 11. Lateral shearing blocks 15 are installed on the inner walls of both the first and second disassembly frames 6 and 7. The lateral shearing blocks 15, the first shearing and crushing shaft 13, and the second shearing and crushing shaft 14 are designed in an alternating manner, thereby enabling efficient waste material shearing and crushing operations.
[0028] The first disassembly frame 6 and the mating strip 8 are integrated into one piece, as are the second disassembly frame 7 and the other mating strip 8. The mating strips 8 of the two disassembly frames are mutually compatible, and the first and second disassembly frames 6 and 7 are square-framed. The mating hole 9 is aligned with the opening on the bearing assembly 11, facilitating the installation and removal of the fastener 12.
[0029] Multiple lateral shear blocks 15 are equidistantly distributed on the inner walls of the first disassembly frame 6 and the second disassembly frame 7, and are fixed to the first disassembly frame 6 and the second disassembly frame 7 by bolts. The cross-section of the lateral shear block 15 is trapezoidal, which helps to improve the efficiency and effect of shearing and crushing.
[0030] Both the first shearing and crushing shaft 13 and the second shearing and crushing shaft 14 are composed of shafts and shearing and crushing discs. Multiple shearing and crushing discs are equidistantly distributed on the shafts, and the shearing and crushing discs of the first shearing and crushing shaft 13 and the second shearing and crushing shaft 14 are designed in an alternating manner. This alternating design can improve the uniformity and efficiency of shearing and crushing.
[0031] Fastener 12 includes a fastening bolt and a fastening nut. The fastening bolt is inserted into the mating holes 9 of the bearing assembly 11, the first disassembly frame 6, the second disassembly frame 7, and the mating strip 8, and the fastening nut secures the bearing assembly 11, the first disassembly frame 6, the second disassembly frame 7, and the mating strip 8. This fastening method is simple, reliable, and easy to maintain and replace.
[0032] The mounting base 10 has an "L"-shaped cross-section. It is bolted to the first disassembly frame 6 and the second disassembly frame 7, and also bolted to the support frame 1. This design ensures the stability and reliability of the device while facilitating its installation and disassembly.
[0033] Connect the power supply and start drive motor 2. Confirm that the motor is operating normally without abnormal noise or vibration. Place the waste material into the feed inlet of the device. The waste material is sheared and crushed by the staggered shearing and crushing discs of the first shearing and crushing shaft 13 and the second shearing and crushing shaft 14. Observe the shearing and crushing effect of the waste material to ensure it is effectively crushed. During operation, monitor the equipment's operating status to ensure no abnormalities occur. If abnormal noise, vibration, or overheating is detected, immediately stop the machine and inspect it. After waste processing is complete, turn off drive motor 2. Clean the remaining waste material inside the equipment to ensure cleanliness.
[0034] After each use, perform a visual inspection of the equipment to confirm there is no obvious damage or wear. Check if fastener 12 is loose; tighten it immediately if necessary. Regularly check the operating status of drive motor 2 and reducer 3 to ensure there is no abnormal noise or overheating. Check if the connection between transmission gear 5 and connecting shaft 4 is secure and free from abnormal wear or damage. Check if the mating strips 8 of the first and second disassembly frames 6 and 7 are intact and free from cracks or deformation. Confirm that the mating holes 9 and bearing assembly 11 are properly fitted and free from looseness or wear.
[0035] Inspect the shearing discs of the first shearing and crushing shaft 13 and the second shearing and crushing shaft 14 for integrity, ensuring they are free from severe wear or damage. Confirm that the staggered design of the shearing and crushing discs is correct and there is no misalignment. Check that the fixing bolts of the lateral shearing block 15 are tight and not loose. Confirm that the trapezoidal cross-section of the lateral shearing block 15 is intact and free from severe wear or damage. Check that the fastening bolts and nuts are intact and free from rust or damage. Confirm that the fasteners 12 are properly tightened and not loose. Inspect the "L"-shaped structure of the mounting base 10 for integrity, ensuring it is free from cracks or deformation. Confirm that the fixing bolts of the mounting base 10 are tight and not loose. Repair or replace any damaged or severely worn parts. Replace damaged shearing and crushing discs, lateral shearing blocks 15, or fasteners 12, etc. After repair or replacement, reassemble all components, ensuring a secure connection. Conduct a trial run of the equipment to confirm that it has returned to normal working condition. Record the findings and corrective actions taken during the maintenance process.
[0036] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A dual-shaft interleaved waste shearing and crushing device, comprising a support frame (1), a drive motor (2), a reducer (3), a connecting shaft (4), and a transmission gear (5), wherein the drive motor (2) and the reducer (3) are mounted on the support frame (1), the reducer (3) is located at the output end of the drive motor (2), and the transmission gear (5) is connected to the output shaft of the reducer (3) via the connecting shaft (4), characterized in that: The upper end of the support frame (1) is connected to the first disassembly frame (6) and the second disassembly frame (7) via the mounting base (10). The first disassembly frame (6) and the second disassembly frame (7) are provided with a docking strip (8) at the joint. The docking strip (8) is provided with a docking hole (9). The first disassembly frame (6) and the second disassembly frame (7) are fixed by inserting a fastener (12) into the docking hole (9). The first disassembly frame (6) is connected to the first shearing and crushing shaft (13) via a bearing assembly (11), and the second disassembly frame (7) is connected to the second shearing and crushing shaft (14) via another bearing assembly (11). Lateral shearing blocks (15) are installed on the inner walls of the first disassembly frame (6) and the second disassembly frame (7). The lateral shearing blocks (15), the first shearing and crushing shaft (13), and the second shearing and crushing shaft (14) are designed in an alternating manner to realize the shearing and crushing operation of waste materials.
2. The dual-shaft staggered waste shearing and crushing device according to claim 1, characterized in that: The first disassembly frame (6) and the docking strip (8) are designed as a whole, and the second disassembly frame (7) and the other docking strip (8) are designed as a whole. The docking strips (8) of the two disassembly frames are compatible with each other. The first disassembly frame (6) and the second disassembly frame (7) are designed as a square frame, and the docking hole (9) is directly opposite the opening on the bearing assembly (11).
3. The dual-shaft staggered waste shearing and crushing device according to claim 2, characterized in that: Multiple lateral shear blocks (15) are equidistantly distributed on the inner walls of the first disassembly frame (6) and the second disassembly frame (7), and the lateral shear blocks (15) are fixed on the first disassembly frame (6) and the second disassembly frame (7) by bolts. The cross-section of the lateral shear blocks (15) is trapezoidal.
4. The dual-shaft staggered waste shearing and crushing device according to claim 3, characterized in that: Both the first shearing and crushing shaft (13) and the second shearing and crushing shaft (14) are composed of shafts and shearing and crushing discs. Multiple shearing and crushing discs are equidistantly distributed on the shafts. The shearing and crushing discs of the first shearing and crushing shaft (13) and the second shearing and crushing shaft (14) are designed to be staggered.
5. A dual-shaft staggered waste shearing and crushing device according to claim 4, characterized in that: The fastener (12) includes a fastening bolt and a fastening nut. The fastening bolt is inserted into the mating hole (9) of the bearing assembly (11), the first disassembly frame (6), the second disassembly frame (7), and the mating strip (8), and the fastening nut is used to fix the bearing assembly (11), the first disassembly frame (6), the second disassembly frame (7), and the mating strip (8).
6. A dual-shaft staggered waste shearing and crushing device according to claim 5, characterized in that: The mounting base (10) has an "L" shaped cross-section. The mounting base (10) is fixed to the first disassembly frame (6) and the second disassembly frame (7) by bolts. The mounting base (10) is fixed to the support frame (1) by bolts.