Double shaft shredder with a pressure device

Abstract

This utility model discloses a dual-shaft shredder with a pressing device, belonging to the field of shredder technology. The dual-shaft shredder with a pressing device includes a shredder body, a protective cover on the shredder body, a pressing arc plate installed on the outer side of the shredder body, and a hydraulic cylinder installed on the inner side of the connecting arm. This utility model solves the problem that in existing dual-shaft shredders, the material position cannot be guaranteed when the two shredder modules simultaneously squeeze inward during actual use, affecting the working effect. This utility model adopts a hinged limiting method for the connecting arm, combined with an arc shape, so that the downward pressing position of the anti-slip pressure plate corresponds exactly to the top of the two shredding rollers. Thus, the material is pressed between the two shredding rollers by the anti-slip pressure plate. During the rotation of the shredding rollers, the material position remains stable, ensuring thorough shredding and improving working efficiency. The structure is simple, occupies a small area, and is conducive to long-term operation.

Description

Technical Field

[0001] This utility model relates to the field of shredder technology, specifically a twin-shaft shredder with a pressing device. Background Technology

[0002] Twin-shaft shredders have strong shredding capacity and high efficiency, but they are more expensive. Currently, most twin-shaft shredders on the market adopt a single-box structure, with two shredding blades placed parallel inside the box. The materials are cut and crushed by the shredding blades.

[0003] Chinese patent CN112191344B discloses a dual-shaft shredder comprising two shredder modules. Each shredder module includes a housing, a shredding shaft, shredding blades, a fixed blade, and a docking structure. The docking structure includes a mating interface, which can be used to connect the two shredder modules or to connect with a feeding mechanism. The mating interface allows the housing cavities of the two shredder modules to be connected, forming a dual-shaft shredder. Simultaneously, when the mating interface connects with the feeding mechanism outlet, it forms a single-shaft shredder. During production and inventory preparation, since the shredder module can be used for both single-shaft and dual-shaft shredders, the quantity of each type of shredder required can be reduced, thus lowering inventory costs and solving the technical problem of high inventory costs associated with current single-shaft and dual-shaft shredders.

[0004] In actual use, the dual-shaft shredder of the aforementioned patent has two shredder modules squeezing inwards simultaneously, which makes it impossible to guarantee the position of the material and affects the working effect; therefore, it does not meet the existing needs. In response, we have proposed a dual-shaft shredder with a pressing device. Utility Model Content

[0005] The purpose of this invention is to provide a twin-shaft shredder with a pressing device, which solves the problem mentioned in the background art that in actual use of twin-shaft shredders, the two shredder modules squeeze inward at the same time, and the position of the material cannot be guaranteed, thus affecting the working effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dual-shaft shredder with a pressing device, comprising a shredder body, a protective cover on the shredder body, two shredding rollers inside the shredder body, a pressing arc plate on the outer side of the shredder body, a connecting arm at the lower end of the pressing arc plate, and a hydraulic cylinder on the inner side of the connecting arm.

[0007] Preferably, the front end of the shredder body is welded with two connecting frames, and two connecting arms are provided, both of which are welded to one end of the pressing arc plate.

[0008] Preferably, the protective cover is connected to the shredder body by fixing screws. The protective cover has two feed ports and an integrally formed movable opening on its surface. The pressing arc plate extends through the movable opening into the interior of the protective cover and is slidably connected to the protective cover.

[0009] Preferably, the two ends of the hydraulic cylinder are respectively hinged to one side of the shredder body and the lower end of the pressing arc plate, and both connecting arms are hinged to the connecting frame.

[0010] Preferably, an anti-slip pressure plate is installed at the other end of the pressing arc plate, the surface of the anti-slip pressure plate is provided with anti-slip grooves, and the anti-slip pressure plate is connected to the pressing arc plate by fixing screws.

[0011] Preferably, a support frame is fixedly connected to the lower part of the shredder body, and an integrally formed feeding port is provided at the lower end of the support frame, the position of which corresponds to the position of the two shredding rollers.

[0012] Preferably, servo motors are installed on both sides of the shredder body, and the output end of the servo motor is connected to a reducer. The reducer is fixedly connected to the shredding roller through a coupling, and the shredding roller is rotatably connected to the shredder body through a bearing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model's shredder uses two servo motors and two reducers to simultaneously drive two shredding rollers, crushing the material above the rollers. By adjusting the hydraulic cylinder, the pressing arc plate is moved. The telescopic hydraulic cylinder can extend one end of the pressing arc plate into the protective cover. Using a connecting arm hinged limit method, combined with the arc shape, the downward pressing position of the anti-slip pressure plate corresponds exactly to the top of the two shredding rollers. Thus, the material is pressed between the two shredding rollers by the anti-slip pressure plate. During the rotation of the shredding rollers, the material's position remains stable, ensuring thorough crushing, improving working efficiency. The structure is simple, occupies a small area, and is conducive to long-term operation. Attached Figure Description

[0015] Figure 1 This is an axonometric view of the front view of this utility model;

[0016] Figure 2 This is an axonometric view of the side of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of a portion of area A in the middle;

[0018] Figure 4 This is an axonometric view of the present invention viewed from below;

[0019] Figure 5 This is an isometric view of the front view of the pressure arc plate of this utility model after adjustment.

[0020] In the diagram: 1. Shredder body; 101. Connecting frame; 2. Protective cover; 201. Feed inlet; 202. Movable opening; 3. Pressing arc plate; 301. Connecting arm; 302. Hydraulic cylinder; 303. Anti-slip pressure plate; 4. Servo motor; 401. Reducer; 402. Shredding roller; 5. Support frame; 501. Discharge port. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0022] To address the issue in existing dual-shaft shredders where the simultaneous inward compression of the two shredder modules during operation leads to inconsistent material positioning and reduced efficiency, please refer to [the relevant documentation / reference]. Figure 1 - Figure 5 This embodiment provides the following technical solution:

[0023] This embodiment of a dual-shaft shredder with a pressing device includes a shredder body 1, a protective cover 2 on the shredder body 1, two shredding rollers 402 inside the shredder body 1, and a pressing arc plate 3 installed on one side of the shredder body 1. A connecting arm 301 is installed at the lower end of the pressing arc plate 3, and a hydraulic cylinder 302 is installed on the inner side of the connecting arm 301. Servo motors 4 are installed on both sides of the shredder body 1, and the output end of the servo motors 4 is connected to a reducer 401. The reducer 401 is fixedly connected to the shredding rollers 402 through a coupling. The shredding rollers 402 are rotatably connected to the shredder body 1 through bearings. The two servo motors 4 and the two reducers 401 simultaneously drive the two shredding rollers 402 to crush the material above the shredding rollers 402.

[0024] It should be noted that an anti-slip pressure plate 303 is installed at the other end of the pressing arc plate 3. The surface of the anti-slip pressure plate 303 is provided with anti-slip grooves, and the anti-slip pressure plate 303 is connected to the pressing arc plate 3 by fixing screws. The material can be pressed between the two shredding rollers 402 by the anti-slip pressure plate 303. During the rotation of the shredding rollers 402, the material position can be kept stable, fully crushed, and the working effect can be improved. The structure is simple, the footprint is small, and it is conducive to long-term operation.

[0025] In fact, the two ends of the hydraulic cylinder 302 are respectively hinged to one side of the shredder body 1 and the lower end of the pressing arc plate 3. Both connecting arms 301 are hinged to the connecting frame 101. The telescopic hydraulic cylinder 302 can extend one end of the pressing arc plate 3 into the interior of the protective cover 2. The protective cover 2 is connected to the shredder body 1 by fixing screws. The protective cover 2 is provided with two feed ports 201, and the surface of the protective cover 2 is also provided with an integrally formed movable port 202. The pressing arc plate 3 extends through the movable port 202 to the interior of the protective cover 2 and slides in connection with the protective cover 2. Two connecting frames 101 are welded to the front end of the shredder body 1. There are two connecting arms 301. Both connecting arms 301 are welded to one end of the pressing arc plate 3. The connecting arms 301 are hinged and limited. With the arc shape, the downward pressing position of the anti-slip pressure plate 303 corresponds exactly to the upper part of the two shredding rollers 402, thus limiting the material to be crushed.

[0026] Specifically, two servo motors 4 and two reducers 401 simultaneously drive two shredding rollers 402 to shred the material above the shredding rollers 402. By adjusting the hydraulic cylinder 302, the pressing arc plate 3 is moved. The telescopic hydraulic cylinder 302 can extend one end of the pressing arc plate 3 into the interior of the protective cover 2. The connecting arm 301 is used for hinged limiting. With the arc shape, the downward pressing position of the anti-slip pressure plate 303 corresponds exactly to the top of the two shredding rollers 402. Thus, the anti-slip pressure plate 303 can press the material between the two shredding rollers 402. During the rotation of the shredding rollers 402, the position of the material can be kept stable, and the material can be fully shredded, improving the working effect. The structure is simple, the footprint is small, and it is conducive to long-term operation.

[0027] To address the issues of unstable structural positioning and poor shredding efficiency in existing dual-shaft shredders during practical use, please refer to... Figure 1 - Figure 5 This embodiment provides the following technical solution:

[0028] In this embodiment, a support frame 5 is fixedly connected to the lower part of the shredder body 1. The lower end of the support frame 5 is provided with an integrally formed feeding port 501. The position of the feeding port 501 corresponds to the position of the two shredding rollers 402. The material shredded by the shredding rollers 402 is discharged from the machine through the feeding port 501 for recycling.

[0029] The shredder body 1 is equipped with servo motors 4 on both sides. The output end of the servo motor 4 is connected to a reducer 401. The reducer 401 is fixedly connected to the shredding roller 402 through a coupling. The shredding roller 402 is rotatably connected to the shredder body 1 through bearings. The two servo motors 4 and the two reducers 401 drive the two shredding rollers 402 simultaneously to crush the material above the shredding rollers 402. The dual motors can effectively improve the crushing efficiency and increase the strength.

[0030] Specifically, two servo motors 4 and two reducers 401 simultaneously drive two shredding rollers 402 to shred the material above the shredding rollers 402. The shredded material is discharged from the machine through the discharge port 501 for recycling. The dual motors can effectively improve the shredding efficiency and increase the strength.

[0031] Working Principle: During operation, two servo motors 4 and two reducers 401 simultaneously drive two shredding rollers 402 to shred the material above them. Adjusting the hydraulic cylinder 302 moves the pressing arc plate 3. The telescopic hydraulic cylinder 302 extends one end of the pressing arc plate 3 into the protective cover 2. Using a hinged limiting mechanism with a connecting arm 301, combined with the arc shape, the downward pressure position of the anti-slip pressure plate 303 corresponds precisely to the top of the two shredding rollers 402. Thus, the anti-slip pressure plate 303 presses the material between the two shredding rollers 402. During rotation, the shredding rollers 402 maintain a stable material position, ensuring thorough shredding and improved working efficiency. The structure is simple, occupies a small area, and is suitable for long-term operation. The shredded material is discharged from the machine through the discharge port 501 for recycling. The dual motors effectively improve shredding efficiency and increase strength.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" 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 thereof 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.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A twin-shaft shredder with a pressing device, comprising a shredder body (1), characterized in that, The shredder body (1) is provided with a protective cover (2). The shredder body (1) is provided with two shredding rollers (402) inside. A pressing arc plate (3) is installed on the outer side of the shredder body (1). A connecting arm (301) is installed at the lower end of the pressing arc plate (3). A hydraulic cylinder (302) is installed on the inner side of the connecting arm (301).

2. The twin-shaft shredder with a pressing device according to claim 1, characterized in that, The front end of the shredder body (1) is welded with two connecting frames (101), and two connecting arms (301) are provided. Both connecting arms (301) are welded to one end of the pressing arc plate (3).

3. A twin-shaft shredder with a pressing device according to claim 1, characterized in that, The protective cover (2) is connected to the shredder body (1) by fixing screws. The protective cover (2) is provided with two feed ports (201) and the surface of the protective cover (2) is also provided with an integrally formed movable port (202). The pressing arc plate (3) extends through the movable port (202) into the interior of the protective cover (2) and is slidably connected to the protective cover (2).

4. A twin-shaft shredder with a pressing device according to claim 2, characterized in that, The two ends of the hydraulic cylinder (302) are respectively hinged to one side of the shredder body (1) and the lower end of the pressing arc plate (3), and the two connecting arms (301) are hinged to the connecting frame (101).

5. A twin-shaft shredder with a pressing device according to claim 2, characterized in that, An anti-slip pressure plate (303) is installed at the other end of the pressing arc plate (3). The surface of the anti-slip pressure plate (303) is provided with anti-slip grooves, and the anti-slip pressure plate (303) is connected to the pressing arc plate (3) by fixing screws.

6. A twin-shaft shredder with a pressing device according to claim 1, characterized in that, A support frame (5) is fixedly connected to the lower part of the shredder body (1). The lower end of the support frame (5) is provided with an integrally formed feeding port (501). The position of the feeding port (501) corresponds to the position of the two shredding rollers (402).

7. A twin-shaft shredder with a pressing device according to claim 6, characterized in that, Servo motors (4) are installed on both sides of the shredder body (1). The output end of the servo motor (4) is connected to a reducer (401). The reducer (401) is fixedly connected to the shredding roller (402) through a coupling. The shredding roller (402) is rotatably connected to the shredder body (1) through a bearing.

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