Double-shaft shredding machine

Abstract

The utility model relates to a double-shaft shredding machine which is used for crushing a waste filter for an automobile. Comprising a box body, a first crushing shaft assembly and a second crushing shaft assembly, the first crushing shaft assembly comprises a first crushing shaft, the second crushing shaft assembly comprises a second crushing shaft, the first crushing shaft is parallel to the second crushing shaft, and an adjusting device is arranged on the second crushing shaft; the adjusting device comprises a fixing sleeve, a sliding block and a positioning device; the second crushing shaft is rotationally connected with the sliding block; the positioning device comprises a left positioning bolt and a right positioning bolt; the device has the beneficial effects that the distance between the first crushing shaft and the second crushing shaft can be adjusted, old filters of various specifications can be shredded conveniently, and the working efficiency is improved.

Description

A dual-shaft shredder Technical Field

[0001] This utility model relates to the field of crushing equipment technology, and in particular to a dual-shaft shredder. Background Technology

[0002] Our company specializes in recycling and sorting used automotive filters. We shred and sort these filters before selling them to relevant companies for continued use. However, we encountered the following problems with our previous dual-shaft shredder. The used filters were categorized into three types: oil filters, fuel filters, and air filters. These filters vary in size. Because the distance between the two shafts of the existing dual-shaft shredder was fixed, the shafts were generally kept close together to prevent smaller filters from falling through the gap. This resulted in larger filters requiring repeated tearing to break them, leading to low efficiency.

[0003] The existing patent application CN201610723195.1, entitled "A Dual-Shaft Shredder," discloses a housing and blades. The housing contains a crushing chamber with spaced-apart mounting plates and partitions at both ends, forming a first gap between them. The blades include two blade shafts, cutting blades, and multiple scraping blades. Each blade shaft passes through the partitions and is pivotally connected to the mounting plate by bearings. Multiple cutting blades are fixed to each blade shaft. A second gap is formed between adjacent cutting blades on each blade shaft. Each cutting blade includes a cutting blade holder and a cutting edge. Multiple cutting edges are spirally distributed on the blade shaft. Each scraping blade includes a scraping blade holder and a scraping edge, with each scraping edge corresponding to one of the second gaps. This application has a fixed distance between the two crushing shafts, which also suffers from the aforementioned problem. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a dual-shaft shredder that can adjust the spacing of the crushing shafts to improve crushing efficiency for filters of different specifications.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A dual-shaft shredder for crushing waste automotive filters; comprising a housing, a first crushing shaft assembly and a second crushing shaft assembly mounted on the housing; the first crushing shaft assembly includes a first crushing shaft, the second crushing shaft assembly includes a second crushing shaft, the first crushing shaft and the second crushing shaft are parallel, and the second crushing shaft is provided with an adjusting device for adjusting the distance between the second crushing shaft and the first crushing shaft.

[0007] Furthermore, the adjusting device includes fixed sleeves respectively disposed at both ends of the housing, a slider slidably connected to the fixed sleeves, and a positioning device for positioning the slider and the fixed sleeves; the second crushing shaft is rotatably connected to the slider.

[0008] Furthermore, the fixing sleeve is a rectangular frame, the slider is a rectangular block, and the rectangular block is slidably connected to the inside of the rectangular frame.

[0009] Furthermore, the fixed sleeve is provided with a sliding groove, and the slider is provided with a protrusion, which is slidably connected to the sliding groove. By having the protrusion slide within the sliding groove, axial movement of the slider within the fixed sleeve can be prevented.

[0010] Furthermore, the positioning device includes a left positioning device and a right positioning device; the left positioning device includes a left positioning bolt threadedly connected to the left side of the fixed sleeve, the end of the left positioning bolt abutting against the left side of the slider; the right positioning device includes a right positioning bolt threadedly connected to the right side of the fixed sleeve, the end of the right positioning bolt abutting against the right side of the slider. By using the positioning devices, both ends of the slider can be positioned, preventing the slider from wobbling within the fixed sleeve.

[0011] Furthermore, a second reducer is fixedly connected to the slider, and the second reducer is drivenly connected to the second crushing shaft; a second motor is provided on the second reducer.

[0012] Furthermore, a first reducer is fixedly connected to the housing; the first reducer is drivenly connected to the first crushing shaft; and a first motor is provided on the first reducer.

[0013] Furthermore, a protective plate is fixedly connected between the two sliders, and the protective plate is used to guide the waste filter when it enters the housing. By moving with the sliders, the protective plate prevents the waste filter from leaking through due to excessive gap between the second crushing shaft and the housing after entering the housing if it is not completely crushed.

[0014] The beneficial effects of this utility model are:

[0015] The distance between the first and second crushing shafts can be adjusted by the set adjustment device, which makes it convenient to shred old filters of various specifications and improves work efficiency.

[0016] The positioning device can fix the slider to the box, thereby positioning the second crushing shaft to the box and preventing the second crushing shaft from shaking.

[0017] By installing a protective plate, it is prevented that when the old filter is fed, the material will leak into the gap between the second crushing shaft and the housing, thus affecting the crushing effect. Attached Figure Description

[0018] Figure 1 is a schematic front view of the structure of this utility model;

[0019] Figure 2 is a top view showing the structure of this utility model;

[0020] Figure 3 is a schematic cross-sectional view of the connection between the slider and the fixed sleeve;

[0021] Figure 4 is a schematic diagram of the structure of the fixing sleeve and the adjustment device;

[0022] Figure 5 is a schematic diagram of the installation of the protective plate;

[0023] Figure 6 is a schematic diagram of the installation of the pad.

[0024] Explanation of the labels in the diagram:

[0025] 1-Box body, 2-First crushing shaft assembly, 21-First crushing shaft, 22-First reducer, 3-Second crushing shaft assembly, 31-Fixing sleeve, 32-Slider, 33-Second motor, 34-Second reducer, 35-, 36-Right positioning bolt, 37-Left positioning bolt, 38-Second crushing shaft, 311-Slide groove, 321-Protrusion, 322-Guard plate, 323-Pad plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] As shown in Figure 1-4

[0029] A dual-shaft shredder is disclosed for shredding used automotive filters. It includes a housing 1, a first shredding shaft assembly 2, and a second shredding shaft assembly 3 mounted on the housing 1. The first shredding shaft assembly 2 includes a first shredding shaft 21, and the second shredding shaft assembly 3 includes a second shredding shaft 38. The first shredding shaft 21 and the second shredding shaft 38 are parallel, and the second shredding shaft 38 is equipped with an adjusting device for adjusting the distance between the second shredding shaft 38 and the first shredding shaft 21. Both the first shredding shaft 21 and the second shredding shaft 38 are equipped with shredding teeth, which are arranged oppositely to each other to facilitate shredding of the used filters. The first shredding shaft 21 and the second shredding shaft 38 rotate in opposite directions, as shown in Figure 1. The first shredding shaft 21 rotates counterclockwise, and the second shredding shaft 38 rotates clockwise. This ensures that the used filters between the two shafts are shredded. If the rotation directions are reversed, the shredding effect will not be achieved.

[0030] The adjusting device includes a fixed sleeve 31 respectively disposed at both ends of the housing 1, a slider 32 slidably connected to the fixed sleeve 31, and a positioning device for positioning the slider 32 and the fixed sleeve 31; the second crushing shaft 38 is rotatably connected to the slider 32.

[0031] In detail, the fixing sleeve 31 is a rectangular frame, and the slider 32 is a rectangular block, which is slidably connected to the inside of the rectangular frame. The rectangular block can prevent rotation within the rectangular frame, thus preventing the second crushing shaft 38 from malfunctioning.

[0032] The fixed sleeve 31 is provided with a sliding groove 311, and the slider 32 is provided with a protrusion 321, which is slidably connected to the sliding groove 311. By allowing the protrusion 321 to slide within the sliding groove 311, the slider 32 is restricted to sliding only left and right along the fixed sleeve 31, thus preventing axial movement.

[0033] The positioning device includes a left positioning device and a right positioning device; the left positioning device includes a left positioning bolt 37 threadedly connected to the left side of the fixed sleeve 31, the end of the left positioning bolt 37 abutting against the left side of the slider 32; the right positioning device includes a right positioning bolt 36 threadedly connected to the right side of the fixed sleeve 31, the end of the right positioning bolt 36 abutting against the right side of the slider 32. The slider 32 is limited by the two positioning bolts to prevent the second crushing shaft 38 from sliding on the housing 1 during operation.

[0034] A second reducer 34 is fixedly connected to the slider 32, and the second reducer 34 is connected to the second crushing shaft 38 in a transmission connection; a second motor 33 is provided on the second reducer 34. The rotation of the motor 33 drives the reducer 34 to rotate, which in turn drives the second crushing shaft 38 to rotate, thereby crushing the old filter.

[0035] A first reducer 22 is fixedly connected to the housing 1; the first reducer 22 is connected to the first crushing shaft 21 in a transmission connection; a first motor is provided on the first reducer 22.

[0036] The working process of this utility model,

[0037] When it is necessary to replace the waste filter, adjust the distance between the second crushing shaft 38 and the first crushing shaft 21 by adjusting the length of the fixing sleeve 31 extending from the left and right positioning bolts according to the volume of the waste filter. Start the first motor and the second motor 34 respectively, which will drive the first crushing shaft 21 and the second crushing shaft 38 to shred the waste filter.

[0038] Example 2

[0039] This practical example has a basically the same structure as Example 1.

[0040] The difference is that,

[0041] As shown in Figure 6, to avoid interference between the nut of the right positioning bolt 36 of the right positioning device and the first reducer 22 and the first motor on the first crushing shaft 21, the right positioning bolt 36 is removed. When it is necessary to adjust the distance between the first crushing shaft 21 and the second crushing shaft 38, the left positioning bolt 37 is loosened, and the slider 32 is moved to leave a distance between the slider 32 and the side wall of the rectangular groove of the fixed sleeve 31. A pad 323 is set in this gap. The pad 323 can have various thicknesses to adapt to old filters of different specifications. After inserting the pad 323, the slider 32 is pressed against the pad 323 with the left positioning bolt 37.

[0042] Example 3

[0043] This embodiment has a basically the same structure as Embodiment 2.

[0044] The difference is that,

[0045] As shown in Figure 5

[0046] A protective plate 322 is fixedly connected between the two sliders 32. The protective plate 322 is used to guide the waste filter when it enters the housing 1. The protective plate 322 should avoid interference with the side wall of the housing 1. That is, the protective plate 322 has a notch, which is fitted into both sides of the side wall of the housing 1 and has a gap with the side wall of the housing 1 to avoid interference. Since the gap between the second crushing shaft 38 and the housing 1 is adjustable, when the second crushing shaft 38 is close to the first crushing shaft 21, the second crushing shaft 38 will move away from the side of the housing 1. In this case, smaller old filters may fall through the gap. The protective plate 322 solves this problem.

[0047] The above description is only a preferred embodiment of the present utility model; however, the protection scope of the present utility model is not limited thereto; any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 process, method, article, or apparatus.

Claims

1. A double shaft shredder for breaking of waste filters for automobiles; characterized in that, It includes a housing (1), a first crushing shaft assembly (2) and a second crushing shaft assembly (3) mounted on the housing (1); the first crushing shaft assembly (2) includes a first crushing shaft; the second crushing shaft assembly (3) includes a second crushing shaft (38); the first crushing shaft and the second crushing shaft (38) are parallel, and the second crushing shaft (38) is provided with an adjustment device for adjusting the distance between the second crushing shaft (38) and the first crushing shaft.

2. A double shaft shredder according to claim 1, characterized in that: The adjustment device includes a fixed sleeve (31) respectively disposed at both ends of the housing (1), a slider (32) slidably connected to the fixed sleeve (31), and a positioning device for limiting the slider (32) to the fixed sleeve (31); the second crushing shaft (38) is rotatably connected to the slider (32).

3. A dual-shaft shredder according to claim 2, characterized in that, The fixed sleeve (31) is a rectangular frame, and the slider (32) is a rectangular block, which is slidably connected to the inside of the rectangular frame.

4. A double shaft shredder according to claim 3, characterized in that: The fixed sleeve (31) is provided with a sliding groove (311), and the slider (32) is provided with a protrusion (321), which is slidably connected to the sliding groove (311).

5. A dual-shaft shredder according to claim 4, characterized in that: The positioning device includes a left positioning device and a right positioning device; the left positioning device includes a left positioning bolt (37) threadedly connected to the left side of the fixed sleeve (31), and the end of the left positioning bolt (37) abuts against the left side of the slider (32); the right positioning device includes a right positioning bolt (36) threadedly connected to the right side of the fixed sleeve (31); the end of the right positioning bolt (36) abuts against the right side of the slider (32).

6. A dual-shaft shredder according to claim 5, characterized in that: A second reducer (34) is fixedly connected to the slider (32), and the second reducer (34) is connected to the second crushing shaft (38) in a transmission connection; a second motor (33) is provided on the second reducer (34).

7. A double shaft shredder according to claim 6, characterized in that A first reducer (22) is fixedly connected to the housing (1); the first reducer (22) is connected to the first crushing shaft (21) in a transmission connection; a first motor is provided on the first reducer (22).

8. A double shaft shredder according to claim 7, characterized in that A guard plate (322) is fixedly connected between the two sliders (32), and the guard plate (322) is used to guide the waste filter when it enters the housing (1).

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