A large two-shaft coarse crusher

Abstract

The utility model discloses a large -scale double -shaft rough crusher, include: drive case, the drive case is rotationally arranged with two drive shafts at interval, one end of drive shaft is connected with driver, and the other end of drive shaft is connected with the first torque transmission part of the first side wall of drive case that stretches out, cutting box body, cutting box body has with the second side wall opposite first side wall, and cutting box body rotationally arranged with two with drive shaft one -to -one corresponding main shaft, and one end of main shaft is equipped with the second torque transmission part of the second side wall that stretches out, dismounting subassembly, be located between drive case and cutting box body, can drive first side wall and second side wall are close to each other and combine second torque transmission part with first torque transmission part. When needing to repair or adjust cutting parameter to paint welding, utilize dismounting subassembly and take down cutting box body from drive case, and first side wall and second side wall are away from each other to make second torque transmission part with first torque transmission part separate, thereby convenient maintenance or replace cutting box body.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment technology, and in particular to a large-scale twin-shaft coarse crusher. Background Technology

[0002] Twin-shaft coarse crushers are increasingly used in many solid waste treatment fields, such as large-item waste crushing, biomass energy production, and the manufacture of alternative fuels from municipal solid waste. Twin-shaft coarse crushers rely on the shearing and tearing action between the rotating blades on the shaft and the fixed blades on the frame to crush solid waste. They are characterized by large blade box size, high crushing capacity, and high output torque, and are widely used in the first coarse crushing process of materials.

[0003] The wear-resistant welds on the rotating blades, fixed blades and shaft body of the twin-shaft coarse crusher can be repeatedly coated and welded to repair the worn parts. However, due to the large amount of wear during use, frequent coating and welding repairs are required to obtain appropriate crushing and cutting quality and overall service life. However, the coating and welding requires workers to squat inside the crusher cavity, and the crusher itself is located at a high position, making the operation time long and difficult, and also posing certain safety risks such as accidental falls.

[0004] Furthermore, the composition of incoming waste at waste treatment plants is constantly changing, requiring adjustments to waste treatment processes to adapt to evolving market demands. Adjusting these processes (such as adjusting output particle size) necessitates adjusting cutting parameters, including blade shape, number of blades, and the cutting gap between moving and stationary blades. This ultimately necessitates the complete replacement of the equipment. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the purpose of this invention is to provide a large twin-shaft coarse crusher with a separately detachable cutting box, facilitating worker welding repairs and replacement of the cutting box to adjust cutting parameters.

[0006] A large twin-shaft coarse crusher according to an embodiment of the present invention includes: a drive box, on which two drive shafts are rotatably disposed at intervals, one end of each drive shaft being connected to a driver, and the other end of each drive shaft being connected to a first torque transmission member extending from a first sidewall of the drive box; a cutting box, having a second sidewall opposite to the first sidewall, and having two main shafts rotatably disposed on the cutting box corresponding one-to-one with the drive shafts, one end of each main shaft being provided with a second torque transmission member extending from the second sidewall, the second torque transmission member being capable of engaging or disengaging with the first torque transmission member; and a disassembly assembly, disposed between the drive box and the cutting box, capable of driving the first sidewall and the second sidewall closer together and engaging the second torque transmission member with the first torque transmission member.

[0007] A large-scale twin-shaft coarse crusher according to an embodiment of the present utility model has at least the following beneficial effects:

[0008] When welding repair or cutting parameters need to be adjusted, the cutting box is removed from the drive box using the disassembly and assembly components. The first and second side walls are moved away from each other to separate the second torque transmission component from the first torque transmission component, thus facilitating the repair or replacement of the cutting box. During assembly, the disassembly and assembly components are used to drive the first and second side walls closer together to engage the second torque transmission component with the first torque transmission component, and the drive unit can then drive the spindle to rotate.

[0009] In some embodiments of this utility model, one of the first torque transmission component and the second torque transmission component is a spline shaft, and the other is a spline sleeve that cooperates with the spline shaft.

[0010] In some embodiments of this utility model, the main shaft has a first disc portion at one end extending from the second side wall, the spline sleeve includes a second disc portion fixedly connected to the side of the first disc portion and a spline groove provided in the second disc portion, and the spline shaft is formed on the drive shaft.

[0011] In some embodiments of this utility model, one of the first sidewall and the second sidewall is provided with at least two guide posts arranged parallel to the drive shaft, and the other is provided with guide holes that cooperate with the guide posts one by one. The end of the guide post is provided with a guide cone surface.

[0012] In some embodiments of this utility model, the disassembly and assembly assembly includes a lead screw that is rotatably disposed in the drive box, one end of the lead screw extending out of the first side wall, and a threaded hole matching the lead screw on the second side wall. The lead screw is connected to the threaded hole to make the first side wall and the second side wall fit together and to drive the second torque transmission member to engage with the first torque transmission member.

[0013] In some embodiments of this utility model, the first sidewall is provided with a first clearance hole for the lead screw to pass through, the drive box is provided with a vertical mounting plate on one side of the first sidewall, the vertical mounting plate is provided with a second clearance hole for the lead screw to pass through, and the lead screw is threadedly connected with a first stop screw that can tighten against the vertical mounting plate and a second stop screw that can tighten against the back of the first sidewall.

[0014] In some embodiments of this utility model, there are two lead screws, which are distributed on both sides of the two first torque transmission components, and the line connecting the axes of the two lead screws is perpendicular to the axis of the drive shaft.

[0015] In some embodiments of this utility model, a plurality of fastening screws are detachably provided between the first sidewall and the second sidewall to drive them to abut against each other.

[0016] In some embodiments of this utility model, the length direction of the drive box is parallel to the drive shaft, the length direction of the cutting box is parallel to the main shaft, the two drive shafts are spaced apart along the width direction of the drive box, the two main shafts are spaced apart along the width direction of the cutting box, the bottom plate of the drive box is provided with at least two first bolt through holes spaced apart along its length direction on both sides along its width direction, and the bottom plate of the cutting box is provided with at least two second bolt through holes spaced apart along its length direction on both sides along its width direction.

[0017] In some embodiments of this utility model, the driver includes a motor and a reducer connected to the output shaft of the motor, and the output end of the reducer is connected to the drive shaft.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the large twin-shaft coarse crusher of this utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure in which the drive box and the cutting box are separated in the embodiment;

[0022] Figure 3 for Figure 2 A diagram from another perspective;

[0023] Figure 4 This is a cross-sectional diagram of the component assembly / disassembly point;

[0024] Figure 5 This is a schematic diagram showing the structure where the first torque transmission component on the drive shaft is separated from the second torque transmission component on the main shaft.

[0025] Figure label:

[0026] Drive box 100; first side wall 101; first clearance hole 102; drive shaft 110; first torque transmission component 120; vertical mounting plate 130; second clearance hole 131; driver 200; motor 210; reducer 220; cutting box 300; second side wall 301; main shaft 310; first disc part 311; second torque transmission component 320; second disc part 321; spline groove 322; disassembly assembly 400; lead screw 410; threaded hole 420; first stop screw 430; second stop screw 440; guide post 510; guide cone surface 511; guide hole 520; fastening screw 600; first bolt through hole 710; second bolt through hole 720. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] See Figures 1 to 3 This utility model discloses a large-scale twin-shaft coarse crusher, comprising: a drive housing 100, on which two drive shafts 110 are rotatably mounted at intervals; one end of each drive shaft 110 is connected to a driver 200, and the other end of each drive shaft 110 is connected to a first torque transmission component 120 extending from a first sidewall 101 of the drive housing 100; and a cutting housing 300, which has a second sidewall 301 opposite to the first sidewall 101, and two drive shafts 110 are rotatably mounted on the cutting housing 100. The drive shaft 110 corresponds to the main shaft 310. One end of the main shaft 310 is provided with a second torque transmission member 320 extending out of the second side wall 301. The second torque transmission member 320 can be engaged with or separated from the first torque transmission member 120. The disassembly assembly 400 is provided between the drive box 100 and the cutting box 300, which can drive the first side wall 101 and the second side wall 301 to move closer to each other and engage the second torque transmission member 320 with the first torque transmission member 120.

[0032] When welding repair or cutting parameters need to be adjusted, the cutting box 300 is removed from the drive box 100 using the disassembly and assembly component 400. The first side wall 101 and the second side wall 301 are moved away from each other so that the second torque transmission component 320 is separated from the first torque transmission component 120, thereby facilitating the repair or replacement of the cutting box 300. During assembly, the disassembly and assembly component 400 is used to drive the first side wall 101 and the second side wall 301 closer together so that the second torque transmission component 320 is engaged with the first torque transmission component 120, and the driver 200 can then drive the spindle 310 to rotate.

[0033] See Figure 2 , Figure 3 and Figure 5In some embodiments of this utility model, one of the first torque transmission component 120 and the second torque transmission component 320 is a splined shaft, and the other is a splined sleeve that mates with the splined shaft. It can be understood that driving the cutting box 300 and the drive box 100 closer or further apart along the axial direction of the main shaft 310 achieves transmission connection or separation. The splined shaft has multiple teeth simultaneously bearing the load; compared to a single-key connection, it can distribute the torque across multiple teeth, resulting in relatively smaller stress on each tooth, thereby greatly improving the load-bearing capacity of the connection and meeting the requirements for transmitting larger power and torque.

[0034] Furthermore, the splined shaft and splined sleeve, when mated, provide better positioning and guidance in both the circumferential and axial directions, ensuring good coaxiality between the main shaft 310 and the drive shaft 110, and improving the smoothness of the mechanical transmission. Of course, in other embodiments, the first torque transmission member 120 can also be replaced by a polygonal protrusion, and the second torque transmission member 320 can be correspondingly configured as a polygonal groove.

[0035] See Figure 5 In some embodiments of this utility model, the spindle 310 has a first disc portion 311 extending from the second side wall 301. The spline sleeve includes a second disc portion 321 fixedly connected to the side of the first disc portion 311 and a spline groove 322 provided in the second disc portion 321. The spline shaft is formed on the drive shaft 110. Specifically, the first disc portion 311 and the second disc portion 321 have a large contact area. Welding the side walls of the first disc portion 311 and the second disc portion 321 together or fixing them together with a large number of circumferentially spaced bolts is beneficial for a stable connection between the spindle 310 and the spline sleeve.

[0036] See Figure 2 and Figure 3 In some embodiments of this utility model, one of the first sidewall 101 and the second sidewall 301 is provided with at least two guide posts 510 arranged parallel to the drive shaft 110, and the other is provided with guide holes 520 that mate with the guide posts 510. The end of each guide post 510 is provided with a guide cone surface 511. It is understood that when there is a slight deviation between the axial direction of the guide post 510 and the guide hole 520, it can be corrected during the insertion of the guide cone surface 511 into the guide hole 520. The insertion of the guide post 510 into the guide hole 520 serves to guide the second torque transmission component 320 and the first torque transmission component 120 to move and engage along a preset direction, reducing assembly difficulty.

[0037] See Figures 2 to 4In some embodiments of this utility model, the disassembly and assembly assembly 400 includes a lead screw 410 rotatably mounted on the drive housing 100. One end of the lead screw 410 extends out of the first sidewall 101. The second sidewall 301 has a threaded hole 420 that matches the lead screw 410. The lead screw 410 is connected to the threaded hole 420 to bring the first sidewall 101 and the second sidewall 301 into contact and to drive the second torque transmission member 320 to engage with the first torque transmission member 120. It should be noted that by rotating the lead screw 410, the first sidewall 101 and the second sidewall 301 slowly approach each other, eventually causing the second torque transmission member 320 and the first torque transmission member 120 to move axially along the main shaft 310 and engage, for example, by inserting a splined shaft into a splined sleeve. The disassembly and assembly assembly 400 with the above structure has a self-locking function to prevent the second torque transmission member 320 from disengaging from the first torque transmission member 120 along the main shaft 310.

[0038] See Figure 4 In some embodiments of this utility model, the first sidewall 101 is provided with a first clearance hole 102 for the lead screw 410 to pass through, the drive box 100 is provided with a vertical mounting plate 130 on one side of the first sidewall 101, the vertical mounting plate 130 is provided with a second clearance hole 131 for the lead screw 410 to pass through, and the lead screw 410 is threadedly connected with a first stop screw 430 that can tighten against the vertical mounting plate 130 and a second stop screw 440 that can tighten against the back of the first sidewall 101. It should be noted that when the lead screw 410 is rotated to be tightened into the threaded hole 420, the first stop screw 430 is then tightened to press against the vertical mounting plate 130 and the second stop screw 440 is tightened to press against the back of the first side wall 101. At this time, the lead screw 410 cannot continue to rotate. Even under long-term high vibration conditions, the lead screw 410 is not likely to rotate on its own, which would cause the connection between the second torque transmission component 320 and the first torque transmission component 120 to become loose.

[0039] See Figure 3 In some embodiments of this utility model, in order to improve the connection strength and reliability between the drive box 100 and the cutting box 300, and at the same time to balance the tension on both sides of the cutting box 300, two lead screws 410 are provided. The two lead screws 410 are distributed on both sides of the two first torque transmission components 120, and the line connecting the axes of the two lead screws 410 is perpendicular to the axis of the drive shaft 110.

[0040] See Figures 2 to 4In some embodiments of this utility model, in order to further improve the connection strength and reliability between the drive box 100 and the cutting box 300, a plurality of fastening screws 600 are detachably provided between the first side wall 101 and the second side wall 301 to drive the two to abut against each other.

[0041] See Figure 1 In some embodiments of this utility model, the drive box 100 is arranged parallel to the drive shaft 110 in its length direction, and the cutting box 300 is arranged parallel to the main shaft 310 in its length direction. The two drive shafts 110 are spaced apart along the width direction of the drive box 100, and the two main shafts 310 are spaced apart along the width direction of the cutting box 300. The bottom plate of the drive box 100 has at least two first bolt through holes 710 spaced apart along its length direction on both sides of its width direction, and the bottom plate of the cutting box 300 has at least two second bolt through holes 720 spaced apart along its length direction on both sides of its width direction. The first bolt through holes 710 and the second bolt through holes 720 are both arranged in the vertical direction. Bolts can be used to fix the drive box 100 and the cutting box 300 to the frame platform, ensuring the stability of their positions.

[0042] In some embodiments of this utility model, the driver 200 includes a motor 210 and a reducer 220 connected to the output shaft of the motor 210. The output end of the reducer 220 is connected to the drive shaft 110, which helps to output a larger torque.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A large twin-shaft coarse crusher, characterized in that, include: A drive housing (100) is provided with two drive shafts (110) rotatably arranged at intervals. One end of each drive shaft (110) is connected to a driver (200), and the other end of each drive shaft (110) is connected to a first torque transmission component (120) extending out of the first sidewall (101) of the drive housing (100). A cutting box (300) has a second sidewall (301) opposite to the first sidewall (101). The cutting box (300) is rotatably provided with two main shafts (310) corresponding one-to-one with the drive shaft (110). One end of the main shaft (310) is provided with a second torque transmission member (320) extending out of the second sidewall (301). The second torque transmission member (320) can be engaged with or separated from the first torque transmission member (120). The disassembly assembly (400) is located between the drive box (100) and the cutting box (300), and is capable of driving the first side wall (101) and the second side wall (301) to move closer to each other and engaging the second torque transmission member (320) with the first torque transmission member (120).

2. The large twin-shaft coarse crusher according to claim 1, characterized in that: One of the first torque transmission component (120) and the second torque transmission component (320) is a spline shaft, and the other is a spline sleeve that mates with the spline shaft.

3. A large twin-shaft coarse crusher according to claim 2, characterized in that: The main shaft (310) has a first disc portion (311) extending from one end of the second side wall (301). The spline sleeve includes a second disc portion (321) fixedly connected to the side of the first disc portion (311) and a spline groove (322) provided in the second disc portion (321). The spline shaft is formed on the drive shaft (110).

4. A large twin-shaft coarse crusher according to claim 1, characterized in that: One of the first sidewall (101) and the second sidewall (301) is provided with at least two guide posts (510) arranged parallel to the drive shaft (110), and the other is provided with guide holes (520) that cooperate with the guide posts (510). The end of the guide post (510) is provided with a guide cone surface (511).

5. A large twin-shaft coarse crusher according to claim 1, characterized in that: The disassembly assembly (400) includes a lead screw (410) that is rotatably mounted on the drive housing (100). One end of the lead screw (410) extends out of the first sidewall (101). The second sidewall (301) is provided with a threaded hole (420) that matches the lead screw (410). The lead screw (410) is connected to the threaded hole (420) to make the first sidewall (101) and the second sidewall (301) fit together and to drive the second torque transmission member (320) to engage with the first torque transmission member (120).

6. A large twin-shaft coarse crusher according to claim 5, characterized in that: The first sidewall (101) is provided with a first clearance hole (102) for the lead screw (410) to pass through. The drive box (100) is provided with a vertical mounting plate (130) on one side of the first sidewall (101). The vertical mounting plate (130) is provided with a second clearance hole (131) for the lead screw (410) to pass through. The lead screw (410) is threaded with a first stop screw (430) that can tighten against the vertical mounting plate (130) and a second stop screw (440) that can tighten against the back of the first sidewall (101).

7. A large twin-shaft coarse crusher according to claim 5 or 6, characterized in that: Two lead screws (410) are provided, which are distributed on both sides of the two first torque transmission components (120). The line connecting the axes of the two lead screws (410) is perpendicular to the axis of the drive shaft (110).

8. A large twin-shaft coarse crusher according to claim 5, characterized in that: A plurality of fastening screws (600) are detachably provided between the first sidewall (101) and the second sidewall (301) to drive the two sides to abut against each other.

9. A large twin-shaft coarse crusher according to claim 5, characterized in that: The drive box (100) is arranged parallel to the drive shaft (110) in the length direction, and the cutting box (300) is arranged parallel to the main shaft (310) in the length direction. The two drive shafts (110) are arranged at intervals along the width direction of the drive box (100), and the two main shafts (310) are arranged at intervals along the width direction of the cutting box (300). The bottom plate of the drive box (100) is provided with at least two first bolt through holes (710) spaced apart along its length direction on both sides of its width direction, and the bottom plate of the cutting box (300) is provided with at least two second bolt through holes (720) spaced apart along its length direction on both sides of its width direction.

10. A large twin-shaft coarse crusher according to claim 1, characterized in that: The driver (200) includes a motor (210) and a reducer (220) connected to the output shaft of the motor (210), the output end of the reducer (220) being connected to the drive shaft (110).

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