A large block breaking device for scrap metal

Abstract

The utility model discloses a kind of waste metal bulk crushing devices, including lifting frame, the top of the lifting frame is fixedly connected with crushing frame, four round holes are arranged in the inner wall of the crushing frame, every two of four round holes are rotatably connected with transmission shaft, the outer wall of two transmission shafts is evenly fixed with a plurality of crushing teeth, the top of the lifting frame is equipped with driving assembly, the outer wall of the crushing frame is fixedly connected with four ear plates.The protective cover can be opened and closed along the guide rod, and can effectively block the metal debris from splashing during crushing after closing. The double protection of protection and monitoring is realized by cooperating with the tempered glass observation window, solving the problem of traditional open equipment debris injury and damage to surrounding equipment, greatly improving the operation safety. The multiple crushing teeth realize efficient crushing of large metal by tearing and shearing, and the bearing seat provides stable support for the transmission shaft to ensure smooth crushing process.

Description

Technical Field

[0001] This utility model relates to the field of waste metal recycling technology, and in particular to a waste metal large-piece crushing device. Background Technology

[0002] Crushing is a crucial preliminary step in scrap metal recycling, primarily aimed at improving the efficiency and economy of subsequent processing. By physically breaking large, irregularly shaped metal waste (such as metal blocks and discarded household appliances) into smaller pieces or powder, the bulk density of the metal can be significantly increased, facilitating transportation and storage. Simultaneously, crushing effectively removes attached non-metallic impurities (such as plastics and rubber) and creates conditions for subsequent fine separation processes such as magnetic separation and eddy current separation, thereby maximizing the purity of recovered high-value metals.

[0003] In existing technologies, scrap metal crushing equipment is often open-type, which makes it difficult to effectively deal with the high-speed metal fragments that fly during the crushing process. These fragments have high kinetic energy and random direction, which can easily pose a serious threat to the personal safety of on-site operators and may also damage surrounding equipment. Therefore, we propose a scrap metal large-piece crushing device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a device for crushing large pieces of waste metal.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A large scrap metal crushing device includes a lifting frame, a crushing frame fixedly connected to the top of the lifting frame, four circular holes on the inner wall of the crushing frame, and a drive shaft rotatably connected to each of the four circular holes in pairs. Multiple crushing teeth are uniformly fixedly fitted onto the outer walls of the two drive shafts. A drive assembly is provided on the top of the lifting frame. Four ear plates are fixedly connected to the outer wall of the crushing frame, and guide rods are fixedly connected to each of the four ear plates in pairs. Two bushings are slidably fitted onto the outer walls of the two guide rods. Lining plates are fixedly connected to the tops of the four bushings, and protective covers are fixedly connected to each of the four lining plates in pairs.

[0007] Preferably, the drive assembly includes a geared motor, with gears fixedly fitted at one end of each of the two drive shafts, the two gears meshing with each other, the top of the lifting frame being fixedly connected to the bottom of the geared motor, and the output shaft of the geared motor being fixedly connected to one of the drive shafts by the same coupling, the flexible connection characteristics of the coupling being able to buffer the impact loads generated during the motor's start-up and operation.

[0008] Preferably, bearing seats are fixedly fitted on the outer walls of both ends of the two drive shafts, and the outer walls of the four bearing seats are fixedly connected to the outer wall of the crushing frame. The bearing seats can convert the sliding friction of the drive shaft into rolling friction, which greatly reduces the rotational resistance and improves the power transmission efficiency.

[0009] Preferably, a protective frame is fixedly connected to the outer wall of the crushing frame, and both gears are located inside the protective frame, which protects the gears.

[0010] Preferably, two tempered glass panels are fixedly embedded in the outer walls of both protective covers. The tempered glass panels facilitate observation of the working conditions and can prevent metal fragments from flying out.

[0011] Preferably, the bottom of both protective covers is slidably connected to the top of the break frame.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] The protective cover of this solution can slide open and close along the guide rod. When closed, it can effectively block metal debris from flying during crushing. Combined with the tempered glass observation window, it provides dual protection and monitoring, solving the problem of debris injuring people and damaging surrounding equipment in traditional open equipment, and greatly improving operational safety. Multiple crushing teeth achieve efficient crushing of large pieces of metal through tearing and shearing, and the bearing seat provides stable support for the drive shaft, ensuring a smooth crushing process. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a waste metal large-piece crushing device proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of a waste metal large-piece crushing device proposed in this utility model;

[0017] Figure 3 This is a top view schematic diagram of a waste metal large-piece crushing device proposed in this utility model.

[0018] In the diagram: 1. Elevating frame; 2. Crushing frame; 3. Drive shaft; 4. Crushing teeth; 5. Bearing housing; 6. Gear; 7. Gear motor; 8. Coupling; 9. Protective frame; 10. Ear plate; 11. Guide rod; 12. Bushing; 13. Liner plate; 14. Protective cover; 15. Tempered glass. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figures 1-3 As shown, a device for crushing large pieces of scrap metal is disclosed, including a lifting frame 1. A crushing frame 2 is fixedly connected to the top of the lifting frame 1. The inner wall of the crushing frame 2 has four round holes. Each of the four round holes is rotatably connected to a drive shaft 3 in pairs. Multiple crushing teeth 4 are uniformly fixed on the outer wall of the two drive shafts 3. The multiple crushing teeth 4 are uniformly fixed on the outer wall of the drive shafts 3 to form a dense tooth group. The staggered tooth design can produce multiple effects of tearing, shearing and squeezing on large pieces of metal, and quickly crush them into small pieces of material.

[0021] Bearing seats 5 are fixedly fitted on the outer walls of both ends of the two drive shafts 3. The outer walls of the four bearing seats 5 are fixedly connected to the outer wall of the crushing frame 2. The bearing seats 5 can convert the sliding friction of the drive shaft 3 into rolling friction, which greatly reduces the rotational resistance, improves the power transmission efficiency, and reduces the wear at the end of the drive shaft 3.

[0022] Four ear plates 10 are fixedly connected to the outer wall of the crushing frame 2. Each pair of ear plates 10 is fixedly connected to a guide rod 11. The rigid structure of the ear plates 10 can provide stable support for the guide rods 11. The guide rods 11 are prevented from bending or shifting during the sliding of the protective cover 14, ensuring the smooth opening and closing of the protective cover 14.

[0023] Two bushings 12 are slidably fitted on the outer walls of the two guide rods 11. The bushings 12 are made of wear-resistant and lubricating material, which can reduce the coefficient of friction between the protective cover 14 and the guide rods 11 when sliding, making the opening and closing operation easier. The top of each of the four bushings 12 is fixedly connected to a liner plate 13. Each of the four liners 13 is fixedly connected to the protective cover 14 in pairs. The liners 13 enhance the structural stability of the protective cover 14 and prevent it from deforming when sliding or being impacted by debris.

[0024] Two tempered glass 15s are fixedly embedded in the outer walls of the two protective covers 14. The two tempered glass 15s on the protective covers 14 are symmetrically arranged front and back. The tempered glass 15s facilitate observation of the working conditions and can prevent metal fragments from flying out. The bottom of the two protective covers 14 is slidably connected to the top of the crushing frame 2.

[0025] The top of the lifting frame 1 is equipped with a drive assembly, which includes a geared motor 7. One end of each of the two drive shafts 3 is fixedly fitted with a gear 6, and the two gears 6 are meshed together. The top of the lifting frame 1 is fixedly connected to the bottom of the geared motor 7. The output shaft of the geared motor 7 is fixedly connected to one of the drive shafts 3 by the same coupling 8. The flexible connection characteristics of the coupling 8 can buffer the impact load generated during the start-up and operation of the motor, and protect the drive shaft 3 and the motor output shaft from instantaneous stress damage. The outer wall of the crushing frame 2 is fixedly connected with a protective frame 9, and the two gears 6 are located inside the protective frame 9.

[0026] Working principle: The two protective covers 14 are moved outward along the two guide rods 11 via the two liners 13 and two bushings 12 connected to them, opening the top of the crushing frame 2. Then, scrap metal is put into the crushing frame 2. The two protective covers 14 are slid closed along the top of the crushing frame 2. At this time, the protective covers 14 prevent metal fragments from flying out of the crushing frame 2 during the crushing process, ensuring operational safety. When starting, the geared motor 7 drives one of the drive shafts 3 to rotate through the coupling 8. The drive shaft 3 drives the other drive shaft 3 to rotate in opposite directions through two meshing gears 6. This causes the multiple sets of crushing teeth 4 fixed on the two drive shafts 3 to rotate alternately, tearing, shearing and crushing the large pieces of metal put into the crushing frame 2. The gears 6 outside the crushing frame 2 are completely closed by the protective frame 9. The tempered glass 15 on the protective cover 14 facilitates observation of the working conditions and can prevent metal fragments from flying out. Throughout the crushing process, the bearing seat 5 provides stable support for the drive shaft 3.

[0027] It should be noted that when actually put into use, an existing PLC controller can be added. The PLC controller is electrically connected to the geared motor 7 to facilitate the control of the overall operation.

[0028] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0029] Although embodiments of this application 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 this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for crushing large pieces of scrap metal, comprising a lifting frame (1), characterized in that, The top of the lifting frame (1) is fixedly connected to a crushing frame (2). The inner wall of the crushing frame (2) has four round holes. Each of the four round holes is rotatably connected to a drive shaft (3) in pairs. The outer walls of the two drive shafts (3) are uniformly fitted with multiple crushing teeth (4). The top of the lifting frame (1) is provided with a drive assembly. The outer wall of the crushing frame (2) is fixedly connected to four ear plates (10). Each of the four ear plates (10) is fixedly connected to a guide rod (11) in pairs. The outer walls of the two guide rods (11) are slidably fitted with two bushings (12). The top of each of the four bushings (12) is fixedly connected to a liner plate (13). Each of the four liner plates (13) is fixedly connected to a protective cover (14) in pairs.

2. The waste metal large-piece crushing device according to claim 1, characterized in that, The drive assembly includes a geared motor (7), and gears (6) are fixedly fitted at one end of each of the two drive shafts (3). The two gears (6) are meshed together. The top of the lifting frame (1) is fixedly connected to the bottom of the geared motor (7). The output shaft of the geared motor (7) is fixedly connected to one of the drive shafts (3) by the same coupling (8).

3. The waste metal large-piece crushing device according to claim 1, characterized in that, The outer walls of both ends of the two drive shafts (3) are fixedly fitted with bearing seats (5), and the outer walls of the four bearing seats (5) are fixedly connected to the outer wall of the crushing frame (2).

4. The waste metal large-piece crushing device according to claim 1, characterized in that, The outer wall of the crushing frame (2) is fixedly connected to a protective frame (9), and both gears (6) are located inside the protective frame (9).

5. The waste metal large-piece crushing device according to claim 1, characterized in that, Two tempered glass panes (15) are fixedly embedded in the outer walls of both protective covers (14).

6. The waste metal large-piece crushing device according to claim 1, characterized in that, The bottom of both protective covers (14) is slidably connected to the top of the break frame (2).

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