Wet-type shredding equipment

Abstract

The utility model belongs to the technical field of shredding machines, and particularly relates to wet-type shredding equipment which is characterized in that sealing rings are respectively arranged on the side walls of a machine base on the inner sides of bearings, glands are arranged on the outer sides of the bearings, and oil injection nozzles and / or sealing rings are arranged on the glands; the number of the cutting teeth in a circle on the tooth sheet is an odd number ranging from 7 to 15, and the tooth sheet is connected with the driving shaft and the driven shaft through double keys or splines; the front angle of each cutting tooth ranges from 1.5 degrees to 5 degrees, the rear angle of each cutting tooth ranges from 3 degrees to 15 degrees, and the tooth pieces are high-chromium alloy steel machined parts; the adjacent cutting teeth on the driving shaft and the driven shaft sequentially rotate by 60 degrees, the installation angles of the tooth pieces symmetrically, reversely and progressively deflect towards the two ends with the middle position of the tooth piece set as the center, and the cutting teeth on the tooth pieces are arranged in a V shape. The double-shaft crusher has the advantages that the single-rotation-direction cutting tooth sheets are adopted on the basis of double shafts, so that materials are gathered, the materials can be prevented from slipping, and the crushing efficiency is improved; the installation precision of the tooth pieces is improved, fascia and feathers can be cut up to the maximum degree, and the problem of conglomeration of follow-up materials is solved.

Description

Technical Field

[0001] This utility model belongs to the field of shredder technology, and in particular relates to a wet shredding device. Background Technology

[0002] Shredders are mainly used for crushing materials. They reduce the size of materials through shearing, tearing, and extrusion. They are generally used to process unprocessed raw materials or scraps, making them smaller. A representative example is shredding plastic or rubber scraps, melting them as raw materials, and then granulating them to remake plastic bottles, tires, or trash cans, etc. Chinese invention patent application CN106269119A discloses a box structure for a dual-shaft shredder. This box structure forms a crushing chamber inside, with mounting plates at both ends of the crushing chamber. Bearing seats are provided on both sides of the mounting plates, and the mounting plates and side plates are connected separately by bolts.

[0003] In the livestock and poultry slaughtering, processing, and breeding industry, many young livestock and poultry die before reaching adulthood. If discarded carelessly, this can lead to the spread of pathogens, causing environmental pollution and potentially resulting in mass infections and deaths of livestock and poultry, causing huge losses to farmers. Therefore, the remaining scraps often require harmless treatment of the young livestock and poultry carcasses. This involves a series of processes such as shredding, disinfection, and drying before recycling and reuse, for example, to make fertilizer. Because shredded livestock and poultry carcasses contain blood, feces, water, and grease, and also produce an unpleasant odor, the sealing performance of conventional shredders is insufficient. Improved sealing performance is needed for wastewater and exhaust gas. Furthermore, to avoid blockages in subsequent conveying processes, the material needs to be as finely broken as possible. Toughly shredded fascia and feathers often cause conveyor blockages, affecting smooth production. Utility Model Content

[0004] The purpose of this invention is to provide a wet shredding device that overcomes the shortcomings of existing technologies. Based on a dual-shaft structure, it adopts a single-rotation cutting tooth blade to improve the installation accuracy of the tooth blade and avoid excessive gaps between the tooth blades, so as to achieve the maximum shredding effect on the fascia and feathers of livestock and poultry carcasses. The top and bottom of the device shell maintain the airtightness after being connected with related process equipment to prevent the escape of viscous liquids and odors, and protect the hygiene of the working environment.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A wet shredding device includes a base, a drive shaft, a driven shaft, a drive gear, a driven gear, and a geared motor. The drive shaft and driven shaft are arranged parallel to each other within the base. Each drive shaft and driven shaft is equipped with toothed blades, with adjacent toothed blades forming shearing edges. Toothed blade spacers are provided between adjacent toothed blades on both the drive shaft and driven shaft. The geared motor is connected to one end of the drive shaft and is mounted on a motor mount on one side of the base. The drive shaft and driven shaft are connected to the base via bearings. Sealing rings are provided on the inner side wall of the base of each bearing, and pressure caps are provided on the outer side of each bearing. At least one of the glands is provided with an oil injection nozzle and / or a sealing ring; the outer edge of the toothed plate is uniformly provided with a ring of cutting teeth, the number of cutting teeth in the ring being an odd number of 7-15, the center hole of the toothed plate is connected to the drive shaft and the driven shaft by a double key or spline; the front angle of the cutting teeth is 1.5-5°, the rear angle is 3-15°, and the toothed plate is a high chromium alloy steel machined part; the rotation direction of the cutting teeth on the toothed plate on the drive shaft and the driven shaft is arranged opposite to each other, the adjacent cutting teeth rotate 60° in sequence, the installation angle of the toothed plate is symmetrically deflected in opposite directions from the middle position of the toothed plate group to both ends, and the cutting teeth on the toothed plate form a V-shaped arrangement.

[0007] Furthermore, the base is a rectangular shell, and both the upper and lower surfaces of the base are rectangular flat flanges. The flat flanges are provided with sealing bosses and threaded holes, and the sealing bosses are provided with continuous flange sealing grooves.

[0008] Furthermore, the two ends of the gear train on the drive shaft and driven shaft are connected by round nuts and retaining washers.

[0009] Furthermore, a spacer baffle is provided between the outer side of the toothed spacer and the inner wall of the machine base, and the spacer baffle is fixedly connected to the inner wall of the machine base.

[0010] Furthermore, the sealing ring is a B-type skeleton oil seal with an inner skeleton and no secondary lip.

[0011] Furthermore, the bearing is a self-aligning roller bearing.

[0012] Furthermore, the assembly clearance between the gears on adjacent drive shafts and driven shafts is 0.1-0.15 mm.

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

[0014] Based on the dual-shaft structure, a single-rotation cutting tooth is adopted. The V-shaped arrangement of the cutting teeth has a gathering and restraining effect on the material, which can prevent the material from slipping during the crushing process and improve the crushing efficiency.

[0015] It improves the installation accuracy of the toothed blades, avoids excessive gaps between the blades, and maximizes the shredding effect of the fascia and feathers, reducing the problem of subsequent material clumping.

[0016] Maintaining a tight seal between the top and bottom flat flanges of the equipment casing and the relevant process equipment after connection prevents unpleasant odors from escaping, thereby maintaining a hygienic working environment and benefiting the health of employees. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 2 yes Figure 1 Sectional view along line AA;

[0019] Figure 3 yes Figure 2 Sectional view along the middle BB line;

[0020] Figure 4 This is a schematic diagram of the toothed plate structure in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the V-shaped arrangement of the cutting teeth in an embodiment of this utility model;

[0022] Figure 6 This is a schematic diagram of the flat flange structure in an embodiment of this utility model.

[0023] In the diagram: 1-Base, 2-Drive shaft, 3-Driven shaft, 4-Drive gear, 5-Driven gear, 6-Gear plate, 7-Gear plate spacer, 8-Gear motor, 9-Bearing, 10-Sealing ring, 11-Gland cover, 12-Oil nozzle, 13-Cutting tooth, 14-Keyway, 15-Flat flange, 16-Sealing boss, 17-Threaded hole, 18-Flat flange sealing groove, 19-Round nut, 20-Stop washer, 21-Placement baffle, 22-Motor base. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the specific embodiments used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some embodiments of this utility model. For those skilled in the art, other specific embodiments can be obtained based on these specific embodiments without creative effort.

[0026] The components of the present invention described and shown in the specific embodiments herein can be arranged and designed in numerous different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the claimed invention, but only to illustrate selected embodiments of the invention.

[0027] See Figure 1-3 This is a schematic diagram of an embodiment of a wet shredding device according to the present invention. It includes a base 1, a drive shaft 2, a driven shaft 3, a drive gear 4, a driven gear 5, and a reduction motor 8. The drive shaft 2 and the driven shaft 3 are arranged in parallel within the base 1. The drive shaft 2 and the driven shaft 3 are respectively provided with toothed blades 6. A shearing edge is formed between adjacent toothed blades 6. Toothed blade spacers 7 are respectively provided between adjacent toothed blades 6 on the drive shaft 2 and the driven shaft 3. The assembly gap of the toothed blades 6 on adjacent drive shaft 2 and driven shaft 3 is 0.1-0.15mm, which helps to keep the shearing edge sharp. A geared motor 8 is connected to one end of the drive shaft 2, and the geared motor 8 is mounted on a motor base 22 on one side of the base 1. The drive shaft 2 and the driven shaft 3 are connected to the base 1 via bearings 9. Sealing rings 10 are provided on the inner side of the bearing 9 and on the outer side of the bearing 9. A pressure cap 11 is provided on the outer side of the bearing 9. At least one pressure cap 11 is provided with an oil injection nozzle 12 and / or a sealing ring 10. A ring of cutting teeth 13 is evenly provided on the outer edge of the gear plate 6. There are 13 cutting teeth 13 in a ring. A keyway 14 is provided on the center hole of the gear plate 6 and is connected to the drive shaft 2 and the driven shaft 3 via a double key. A spline structure can also be used to improve the fitting accuracy.

[0028] See Figure 4-5 This is a schematic diagram of the toothed plate structure in an embodiment of this utility model. The front angle α of the cutting tooth 13 is 1.5-5°, preferably 3.5°, and the rear angle β is 3-15°, preferably 12.5°. The toothed plate 6 is a high-chromium alloy steel machined part, which is wear-resistant and not easy to rust. The cutting teeth on the toothed plate 6 on the drive shaft 2 and the driven shaft 3 are arranged in opposite directions. Adjacent cutting teeth rotate 60° in sequence. The installation angle of the toothed plate deflects symmetrically and progressively from the middle position of the toothed plate group to both ends. The cutting teeth on the toothed plate form a V-shaped arrangement, forming a gathering effect from both sides to the center, so that the crushed material is discharged outward from the bottom center position, which is convenient for subsequent processing.

[0029] The base 1 is a rectangular shell, and both the upper and lower surfaces of the base 1 are rectangular flat flanges 15, see... Figure 6 The flat flange 15 is provided with a sealing boss 16 and a threaded hole 17. The sealing boss 16 is provided with a continuous flange sealing groove 18. When connected to adjacent equipment, glue is applied to the sealing boss and a rubber gasket is used to improve the sealing effect.

[0030] The two ends of the toothed plates 6 on the drive shaft 2 and driven shaft 3 are connected by round nuts 19 and stop washers 20, achieving the functions of connection, fastening, and limiting. The stop washers prevent loosening. A spacer baffle 21 is provided between the outer side of the toothed plate spacer sleeve 7 and the inner wall of the machine base 1. The spacer baffle 21 is fixedly connected to the inner wall of the machine base 1, and the gap between the spacer baffle 21 and the toothed plates is less than 2mm, which can prevent larger materials from leaking through the gap. In this embodiment, the sealing ring 10 is a B-type skeleton oil seal with an inner skeleton and no secondary lip. The bearing 9 is a self-aligning roller bearing 9.

[0031] In use, this utility model embodiment is connected to an automatic feeding device at the top and a screw conveyor at the bottom. The shredded material is conveyed to the next process for disinfection, drying, and molding for output.

[0032] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wet shredding device, comprising a base, a drive shaft, a driven shaft, a drive gear, a driven gear, and a geared motor; the drive shaft and the driven shaft are arranged parallel to each other within the base; each drive shaft and the driven shaft is provided with toothed blades, with shearing edges formed between adjacent toothed blades; toothed blade spacers are provided between adjacent toothed blades on the drive shaft and the driven shaft; the geared motor is connected to one end of the drive shaft and is mounted on a motor mount on one side of the base; the drive shaft and the driven shaft are respectively connected to the base via bearings, characterized in that... Sealing rings are provided on the inner side wall of the bearing housing, and a pressure cap is provided on the outer side of the bearing. At least one pressure cap is provided with an oil injection nozzle and / or a sealing ring. A ring of cutting teeth is evenly provided on the outer edge of the gear plate. The number of cutting teeth in the ring is an odd number of 7-15. The center hole of the gear plate is connected to the drive shaft and the driven shaft through a double key or spline. The rake angle of the cutting teeth is 1.5-5° and the clearance angle is 3-15°. The gear plate is a high-chromium alloy steel machined part. The cutting teeth on the gear plate on the drive shaft and the driven shaft are arranged in opposite directions of rotation. Adjacent cutting teeth rotate 60° in sequence. The installation angle of the gear plate deflects symmetrically and progressively from the middle position of the gear plate group to both ends. The cutting teeth on the gear plate form a V-shaped arrangement.

2. The wet shredding equipment according to claim 1, characterized in that, The base is a rectangular shell, and the upper and lower surfaces of the base are rectangular flat flanges. The flat flanges are provided with sealing bosses and threaded holes, and the sealing bosses are provided with continuous flange sealing grooves.

3. The wet shredding equipment according to claim 1, characterized in that, The two ends of the gear train on the drive shaft and driven shaft are connected by round nuts and locking washers.

4. The wet shredding equipment according to claim 1, characterized in that, A spacer baffle is provided between the outer side of the toothed plate spacer and the inner wall of the machine base, and the spacer baffle is fixedly connected to the inner wall of the machine base.

5. A wet shredding device according to claim 1, characterized in that, The sealing ring is a B-type skeleton oil seal with an inner skeleton and no secondary lip.

6. The wet shredding equipment according to claim 1, characterized in that, The bearing is a self-aligning roller bearing.

7. A wet shredding device according to claim 1, characterized in that, The assembly clearance between the gears on adjacent drive shafts and driven shafts is 0.1-0.15 mm.

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