A modular, assembled shredder blade assembly

Abstract

The utility model relates to the technical field of crushing equipment, especially to a modular combined type crusher blade assembly, which comprises a connecting shaft, a plurality of rows of insertion slots extending in the axial direction are evenly and spaced apart in the circumferential direction of the connecting shaft, a blade is inserted into the insertion slots, each row of insertion slots is provided with an inner threaded hole in the lower part, and a screw rod is threaded into the inner threaded hole. By evenly and circumferentially arranging a plurality of insertion slots on the connecting shaft, the number and position of the installed blades can be flexibly selected according to the characteristics of different materials and the requirements of the crushing particle size, and the blades can be assembled on demand, thereby significantly improving the adaptability of the equipment to various working conditions. In addition, the blades adopt a plug-in structure and are axially pressed and fixed with the screw rod, so the installation and replacement of the blades can be quickly completed without the need for special tools, the downtime for maintenance is greatly shortened, and the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment technology, and in particular to a modular combined crusher blade assembly. Background Technology

[0002] Crusher is widely used in many industrial fields such as chemical, pharmaceutical, food, plastic recycling, and agriculture to crush large materials into particles or powders of the required size. Among various crushing equipment, the rotary blade assembly is one of the core components for material crushing. Its structural design directly affects crushing efficiency, particle size uniformity, equipment maintenance costs, and operational safety.

[0003] Currently, traditional crusher blades typically adopt an integral welding and one-piece molding structure. Although the structure is sturdy, once worn or damaged, it is difficult to replace, leading to the scrapping of the entire rotor. This results in high maintenance costs and is not environmentally friendly. In addition, such structures are usually fixed configurations and cannot flexibly adjust the number and layout of blades according to different material characteristics or output particle size requirements, resulting in poor equipment versatility and weak adaptability.

[0004] Therefore, there is an urgent need to provide a modular combination crusher blade assembly that can achieve modular installation, quick disassembly and assembly, and flexible configuration of blades while ensuring high strength and high reliability. Utility Model Content

[0005] In order to overcome the shortcomings of existing crusher blade structures, such as inconvenient disassembly and assembly, poor versatility, and low maintenance efficiency, this utility model provides a modular combined crusher blade assembly.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a modular combined crusher blade assembly, comprising a connecting shaft with multiple rows of axially extending slots evenly spaced along the circumference; blades inserted into the slots; and a screw, with an internally threaded hole at the bottom of each row of slots, the screw threaded through the internally threaded hole, and a mounting hole at the bottom of each blade for the screw to pass through.

[0007] Furthermore, it also includes a rubber ring, which is embedded in the inner wall of the slot.

[0008] Furthermore, it also includes a shielding block, which has a similar structure to the blade and can be inserted into an empty slot where no blade is installed. The shielding block also has mounting holes corresponding to the blade.

[0009] Furthermore, it also includes a retaining ball, each of the slots has a mounting groove on its side, the retaining ball is slidably installed in the mounting groove and partially exposed inside the mounting groove, and each of the blades and the shielding block has a first retaining hole on its side that matches the retaining ball; a spring, one end of the spring is fixedly connected to the retaining ball and the other end is fixedly connected to the inner wall of the mounting groove.

[0010] Furthermore, it also includes a retaining ring, with retaining grooves at both ends of the connecting shaft, and the retaining ring is engaged in the retaining grooves; and a protective shell, which is fixed to the retaining ring.

[0011] Furthermore, it also includes an elastic fixing ball, which is disposed on the outer surface of the retaining ring, and a second retaining hole matching the elastic fixing ball is provided in the retaining groove.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By uniformly setting multiple rows of slots around the connecting shaft, the number and position of the blades can be flexibly selected according to different material characteristics and crushing particle size requirements, realizing on-demand assembly, which significantly improves the equipment's adaptability to various working conditions. In addition, the blades adopt a plug-in structure and are axially pressed and fixed with screws, so that the installation and replacement of blades can be completed quickly without special tools, greatly shortening downtime maintenance time and reducing labor costs.

[0013] 2. By setting an elastic pre-locking mechanism consisting of a ball and a spring on the side wall of the slot, the blade or blocking block can automatically lock into the first locking hole during insertion, achieving preliminary positioning and anti-dislodgement functions, preventing it from accidentally slipping out before the fastening screw, and improving operational safety and assembly efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional sectional view of the connecting shaft, blade, and screw components of this utility model.

[0016] Figure 3 This is a partial sectional view of the screw, rubber ring, and shielding block components of this utility model.

[0017] Figure 4 This is a partial sectional view of the connecting shaft, retaining ball, and spring components of this utility model.

[0018] Figure 5 This is a three-dimensional sectional view of the components of this utility model, including the retaining ring, protective shell, and elastic fixing ball.

[0019] The component names and serial numbers in the diagram are as follows: 1: connecting shaft, 2: slot, 201: threaded hole, 3: blade, 301: mounting hole, 4: screw, 5: rubber ring, 6: shielding block, 7: mounting groove, 8: retaining ball, 801: first retaining hole, 9: spring, 10: retaining ring, 11: protective shell, 12: elastic retaining ball, 1201: second retaining hole. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figures 1-3 A modular, combined crusher blade assembly includes a connecting shaft 1 with eight rows of axially extending slots 2 evenly spaced circumferentially, each row containing 10 slots 2; blades 3 inserted into the slots 2, with the number of rows of blades 3 selectable according to processing requirements for flexible configuration; and a screw 4 with an internally threaded hole 201 at the bottom of each row of slots 2, the screw 4 threaded through the internally threaded hole 201. Each blade 3 has a mounting hole 301 at its bottom for the screw 4 to pass through. During installation, a row of blades 3 is inserted sequentially into the same slot 2, and then a screw 4 is passed through the slot. The mounting holes 301 of all the blades 3 are screwed into the internal threaded holes 201 of the slot 2, thereby pressing and fixing the entire row of blades 3 into the slot 2; the rubber ring 5 is embedded in the inner wall of the slot 2 for vibration reduction, anti-loosening and buffering; the shielding block 6 is similar in structure to the blades 3 and can be inserted into the empty slot 2 where no blades 3 are installed, and the shielding block 6 also has mounting holes 301 corresponding to the blades 3. During installation, the screw 4 is passed through the mounting holes 301 of the shielding block 6 and screwed into the internal threaded holes 201 of the slot 2 to fix it, so as to close the empty slot 2 and prevent materials or impurities from entering the interior.

[0022] When using the modular combination crusher blade 3 assembly, the blades 3 can be selectively installed in different slots 2 of the connecting shaft 1 according to the type of material to be crushed, particle size requirements, and production efficiency needs. For example, for coarse crushing, only some slots 2 can be filled with blades 3, while for fine crushing, multiple rows of blades 3 can be filled. When installing the blades 3, insert the required number of blades 3 into the selected slots 2 one by one to ensure accurate positioning. Then, pass the screw 4 through the mounting holes 301 of all the blades 3 in that row and screw it into the internal threaded hole 201 of the slot 2. The axial pressure of the screw 4 firmly presses the entire row of blades 3, preventing loosening or falling off due to vibration during operation. For unused slots 2, insert the matching blocking block 6 and fix it with the screw 4 in the same way to effectively seal the opening of the slot 2, preventing dust, liquid, or other foreign objects from entering the interior of the connecting shaft 1 during the crushing process and protecting the transmission structure. When it is necessary to replace or maintain the blades 3, simply unscrew the screw 4 of the corresponding slot 2 to easily remove the entire row of blades 3 for replacement or cleaning. The operation is simple and the maintenance efficiency is high.

[0023] Example 2: Based on Example 1, please refer to... Figure 4 It also includes a retaining ball 8, and each of the slots 2 has a mounting groove 7 on its side. The retaining ball 8 is slidably installed in the mounting groove 7 and partially exposed inside the mounting groove 7. Each of the blades 3 and the blocking block 6 has a first retaining hole 801 on its side that matches the retaining ball 8. A spring 9 is also included, with one end fixedly connected to the retaining ball 8 and the other end fixedly connected to the inner wall of the mounting groove 7, for pushing the retaining ball 8 outward.

[0024] When installing the blade 3 or the blocking block 6, insert it into the corresponding slot 2. During the insertion process, the side wall of the blade 3 or the blocking block 6 contacts the exposed retaining ball 8, pressing the retaining ball 8 back into the mounting groove 7. At the same time, the compressed spring 9 stores energy. When the insertion continues to the predetermined depth, the first retaining hole 801 on the blade 3 or the blocking block 6 is aligned with the retaining ball 8. At this time, the compressed spring 9 releases energy, pushing the retaining ball 8 to pop out again and lock into the first retaining hole 801, forming a radial limit. This pre-locking state can effectively prevent the blade 3 or the blocking block 6 from accidentally slipping off due to gravity, vibration or external operating force before it is tightened, ensuring the safety and convenience of the assembly process.

[0025] Please see Figure 5It also includes a retaining ring 10, with retaining grooves at both ends of the connecting shaft 1, and the retaining ring 10 is snapped into the retaining grooves; a protective shell 11, which is fixed to the retaining ring 10 and is used to cover the exposed part of the screw 4 to prevent damage; and an elastic fixing ball 12, which is disposed on the outer surface of the retaining ring 10, and a second locking hole 1201 matching the elastic fixing ball 12 is provided in the retaining groove, so that the elastic fixing ball 12 is snapped into the second locking hole 1201 to achieve anti-loosening locking.

[0026] After the device is installed on the machine, the protective shell 11 is installed to protect both ends of the connecting shaft 1. The retaining ring 10 is inserted into the retaining groove, and the elastic fixing ball 12 is embedded in the second retaining hole 1201 to fix the protective shell 11 and prevent it from loosening. The protective shell 11 protects the exposed screw 4 structure at both ends from being damaged.

[0027] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. A modular, combined crusher blade assembly, comprising: Connecting shaft (1); Its features include: The connecting shaft (1) is provided with multiple rows of slots (2) that extend axially and are evenly spaced along the circumference; Blade (3), which is inserted into the slot (2); The screw (4) has an internal threaded hole (201) at the bottom of each row of slots (2), and the screw (4) is threaded through the internal threaded hole (201). Each blade (3) has an installation hole (301) at the bottom for the screw (4) to pass through.

2. The modular combined crusher blade assembly as described in claim 1, characterized in that, it further includes... include: A rubber ring (5) is embedded in the inner wall of the slot (2).

3. The modular combined crusher blade assembly as described in claim 2, characterized in that, it further includes... include: The shielding block (6) has a similar structure to the blade (3) and can be inserted into an empty slot (2) where the blade (3) is not installed. The shielding block (6) also has a mounting hole (301) corresponding to the blade (3).

4. The modular combined crusher blade assembly as described in claim 3, characterized in that, it further includes... include: The ball (8) is provided with a mounting groove (7) on the side of each slot (2). The ball (8) is slidably installed in the mounting groove (7) and partially exposed inside the mounting groove (7). Each blade (3) and the shielding block (6) are provided with a first locking hole (801) that matches the ball (8). Spring (9), one end of which is fixedly connected to the ball (8), and the other end is fixedly connected to the inner wall of the mounting groove (7).

5. A modular combined crusher blade assembly as described in claim 4, characterized in that, it further includes... include: A retaining ring (10) is provided at both ends of the connecting shaft (1), and the retaining ring (10) is snapped into the retaining ring. A protective shell (11) is fixed to the retaining ring (10).

6. A modular combined crusher blade assembly as described in claim 5, characterized in that, it further includes... include: An elastic fixing ball (12) is disposed on the outer surface of the retaining ring (10), and a second retaining hole (1201) matching the elastic fixing ball (12) is provided in the retaining groove.

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