A waste material pulverizer and a working method thereof

By installing a control mechanism on the crusher's door, and utilizing the cooperation of a pusher and a conductive component, the power is automatically cut off when the door is opened. This solves the safety risks caused by operational errors in existing technologies and ensures the safety and normal operation of the crusher.

CN118080066BActive Publication Date: 2026-04-07宁波晟龙再生资源有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-04-15
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing crushers require manual control of the circuit system during use, which can easily lead to the door opening due to operational errors, causing danger, affecting normal operation, and posing an accident risk.

Method used

A waste material crusher was designed. By setting a control mechanism on the door, and using the cooperation of pushing, pressing and conductive parts, the power is automatically cut off when the door is opened to avoid danger.

Benefits of technology

It automatically cuts off power when the door is opened, ensuring the safety of the crusher, avoiding dangers caused by operational errors, and guaranteeing normal operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a waste material crusher and its working method, including a crushing chamber and a control mechanism. The control mechanism includes a mounting component and a mounting plate. A symmetrical connecting assembly is located in the middle of the mounting component, comprising a pressing component, a fixing rod, a conductive component, a fixing component, and a power-connecting component. A pushing component is provided on the chamber door. When the chamber door is opened, the pushing component pushes the pressing component, compressing the spring. The pressing component then pushes the pressing section, keeping the conductive component rotating on the fixing rod, thereby pulling the conductive column away from the power-connecting area. This waste material crusher, by placing the control mechanism on one side of the chamber door, allows for automatic power-off when the door is opened, ensuring immediate power disconnection and preventing potential hazards. The chamber door drives the pushing component to rotate, compressing the spring of the pressing component and keeping the pressing component pushing the pressing section, causing the conductive component to rotate on the fixing rod, thereby pulling the conductive column away from the power-connecting area, achieving immediate power disconnection upon opening the door.
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Description

Technical Field

[0001] This invention relates to crusher technology, and more particularly to a waste material crusher and its working method. Background Technology

[0002] Waste material crushing equipment is used to crush large-sized solid waste materials to the required size. Crushing equipment is frequently needed in the solid waste treatment process, and the crushed waste materials are easier to process later.

[0003] Currently, most pulverizers are motor-driven, requiring operators to control the electrical system during operation to prevent accidents caused by operator error. Although power-off systems are in place, mistakes can still occur during actual operation, leading to the door being opened, disrupting the pulverizer's normal operation, and in severe cases, causing accidents. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention proposes a waste material crusher and its working method.

[0005] The technical solution of this invention is implemented as follows:

[0006] A waste material crusher, characterized in that it comprises:

[0007] The crushing chamber has a hopper at its upper end, symmetrically arranged crushing rollers inside, a rotating shaft in the middle of each roller, a motor at one end of the rotating shaft, the motor being mounted on the outer wall of the crushing chamber, and a door at the front end of the crushing chamber.

[0008] A control mechanism mounted on a crushing chamber includes a mounting component and a mounting plate. A hinge shaft is provided on the chamber door, which is hinged to the mounting plate. A symmetrical connecting assembly is provided in the middle of the mounting component, and the connecting assembly includes:

[0009] A pressing component is provided, which is located in the middle of the mounting component. A positioning plate is provided in the middle of the mounting component, and the positioning plate has a notch. The pressing component is positioned within the notch. Symmetrical positioning rods are provided on the pressing component, and springs are fitted onto the positioning rods. One end of each spring contacts the pressing component, and the other end contacts the positioning plate.

[0010] A fixing rod is installed in the middle of the mounting component. A conductive element is provided on the fixing rod, and the conductive element is sleeved on the fixing rod. The middle of the conductive element contacts a pressing component. The conductive element consists of a pressing section and symmetrically arranged connecting sections, spiral sections, and mounting sections. A fixing post is provided on the mounting section, and a conductive post is provided on the fixing post. A fixing hole is formed in the middle of the spiral section to mate with the fixing rod.

[0011] A fixing member is positioned in the middle of the mounting component. The fixing member has symmetrically arranged electrical contact components. Each electrical contact component consists of a contact section, arc-shaped sections at both ends of the contact section, and elastic sections. A contact area is formed between the elastic sections, and a mounting area is formed between the arc-shaped sections and the contact sections. The fixing member is positioned within the mounting area, and the conductive post is placed within the contact area.

[0012] The door is equipped with a pusher, one end of which is connected to the door and the other end forms an arc end. The arc end is kept in contact with the pressing part. The pusher is also provided with an inwardly recessed relief opening. When the door is opened by rotating, the pusher pushes the pressing part, causing the spring to compress. The pressing part pushes the pressing section, keeping the conductive part rotating on the fixed rod, thereby pulling the conductive column away from the electrical contact area.

[0013] In this invention, the elastic segment is arc-shaped, and a horizontal segment is provided in the middle of the elastic segment.

[0014] In this invention, a fixed arm is provided on one side of the horizontal segment, and a bent portion is provided on the fixed arm, which remains in contact with another horizontal segment.

[0015] In this invention, the pressing member consists of a pressing plate and a pushing plate. The pressing plate and the pushing plate are arranged perpendicularly. The pressing plate has an extension, and the pushing plate is disposed in a notch.

[0016] In this invention, a pressing area is formed between the spiral segments, and the push plate is disposed within the pressing area.

[0017] In this invention, the push plate is provided with symmetrically arranged receiving openings, and the connecting section is disposed within the receiving openings.

[0018] In this invention, the push plate is further provided with a pulling part, which is arranged perpendicularly to the push plate and is located between symmetrically arranged receiving openings.

[0019] In this invention, the fixed post is provided with a threaded portion, and the conductive post is provided with a threaded hole that mates with the threaded portion.

[0020] In this invention, the conductive post is provided with symmetrically arranged positioning recesses, and the elastic segment is disposed within the positioning recesses.

[0021] A method for operating a waste material crusher, using the crusher described above, includes the following steps:

[0022] Step 1: Pull the door and keep it rotating around the hinge axis so that the pusher on the door pushes the presser.

[0023] Step 2: Keep the pressing plate on the pressing part compressed with the spring;

[0024] Step 3: The push plate on the pressing plate pushes the pressing section on the conductive component, causing the spiral section on the conductive component to rotate on the fixed rod, which drives the conductive post in the energized area to disengage from the contact of the energized component, thereby achieving power disconnection.

[0025] The waste material crusher and its working method according to the present invention have the following beneficial effects: By setting the control mechanism on one side of the box door, the waste material crusher can automatically cut off the power when the box door is opened, ensuring that the crusher is immediately powered off, thereby avoiding danger. The box door drives the pushing component to rotate, thereby keeping the pressing component compressed by the spring, and keeping the pressing component pushing the pressing section, causing the conductive component to rotate on the fixed rod, thereby pulling the conductive column away from the energized area, achieving power cut-off upon opening the door. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the waste material crusher and its working method according to the present invention;

[0027] Figure 2 for Figure 1 Internal structure diagram;

[0028] Figure 3 for Figure 1 A schematic diagram of the control mechanism and door structure;

[0029] Figure 4 for Figure 3 A schematic diagram of the control mechanism structure in the diagram;

[0030] Figure 5 for Figure 4 Top view;

[0031] Figure 6 for Figure 4 Internal structure diagram;

[0032] Figure 7 for Figure 6 A schematic diagram of the structure in another direction;

[0033] Figure 8 for Figure 6 A schematic diagram of the pressing component and positioning plate structure in the middle;

[0034] Figure 9 This is a schematic diagram showing the installation state of the pusher, door, and pressing component in this invention.

[0035] Figure 10 for Figure 6 A schematic diagram of the conductive components in the diagram;

[0036] Figure 11 for Figure 6 A schematic diagram of the conductive pillars, electrical connectors, and fixing components in the diagram;

[0037] Figure 12 for Figure 11 A schematic diagram of the electrical connectors and conductive posts in the diagram.

[0038] In the diagram: 1. Crushing box; 2. Control mechanism; 3. Box door; 4. Pushing component; 5. Pressing component; 6. Pressing section; 7. Conductive component; 8. Fixing rod; 9. Conductive column; 10. Electrically connected area; 11. Feed hopper; 12. Crushing roller; 13. Rotating shaft; 14. Motor; 15. Arc end; 16. Clearance opening; 17. Mounting plate; 18. Hinge shaft; 19. Mounting component; 20. Connecting assembly; 21. Fixing component; 22. Electrically connected component; 23. Positioning plate; 24. Notch; 25. Positioning rod; 26. Spring; 27. Pressing plate. 28. Push plate, 29. Extension, 30. First side plate, 31. Second side plate, 32. Pulling part, 33. Connecting section, 34. Spiral section, 35. Mounting section, 36. Fixing post, 37. Fixing hole, 38. Threaded part, 39. Threaded hole, 40. Positioning notch, 41. Pressing area, 42. Receiving opening, 43. Contact section, 44. Arc-shaped section, 45. Elastic section, 47. Fixing block, 48. Bolt hole, 49. Wire, 50. Horizontal section, 51. Fixing arm, 52. Bending part, 53. Power connection hole. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0040] like Figures 1 to 12 As shown, this waste material crusher of the present invention includes a crushing chamber 1 and a control mechanism 2. The control mechanism 2 is used to control the circuit of the crushing chamber 1, and works with the chamber door 3 on the crushing chamber 1 to realize the opening and closing of the circuit. By opening the chamber door 3, the pusher 4 on the chamber door 3 pushes the pressing member 5, which in turn pushes the pressing section 6, causing the conductive member 7 to rotate on the fixed rod 8, thereby pulling the conductive column 9 away from the energized area 10, thus realizing the power off when the door is opened.

[0041] A hopper 11 is provided at the upper end of the crushing box 1. Symmetrically arranged crushing rollers 12 are provided inside the crushing box 1. A rotating shaft 13 is located in the middle of the crushing rollers 12, and a motor 14 is installed at one end of the rotating shaft 13. The motor 14 is mounted on the outer wall of the crushing box 1. The motor 14 drives the rotating shaft 13 to rotate, thereby driving the crushing rollers 12 to rotate, crushing the waste material discharged from the hopper 11. A door 3 is provided at the front end of the crushing box 1. A pusher 4 is provided on the door 3. One end of the pusher 4 is connected to the door 3, and the other end forms an arc end 15, which remains in contact with the pressing part 5. The pusher 4 also has an inwardly recessed clearance 16. The clearance 16 is used to prevent the pusher 4 from touching the mounting plate 17 when rotating.

[0042] The control mechanism 2 is mounted on the crushing chamber 1. The control mechanism 2 includes a mounting component 19 and a mounting plate 17. A hinge shaft 18 is provided on the chamber door 3, and the chamber door 3 is hinged to the mounting plate 17 via the hinge shaft 18. A symmetrical connecting assembly 20 is provided in the middle of the mounting component 19. The connecting assembly 20 includes a pressing component 5, a fixing rod 8, a conductive component 7, a conductive post 9, a fixing component 21, and a connecting component 22. The conductive component 7, the conductive post 9, and the connecting component 22 are all made of conductive materials, while the pressing component 5, the fixing rod 8, and the fixing component 21 are all made of insulating materials.

[0043] The pressing element 5 is located in the middle of the mounting element 19. A positioning plate 23 is located in the middle of the mounting element 19. The positioning plate 23 has a notch 24, and the pressing element 5 is located in the notch 24. The pressing element 5 has symmetrical positioning rods 25, and springs 26 are sleeved on the positioning rods 25. One end of the springs 26 contacts the pressing element 5, and the other end contacts the positioning plate 23.

[0044] The pressing member 5 consists of a pressing plate 27 and a pushing plate 28. The pressing plate 27 and the pushing plate 28 are arranged perpendicularly. The pressing plate 27 has an extension 29, and the pushing plate is disposed within the notch 24. The mounting member 19 has a first side plate 30 and a second side plate 31. The first side plate 30 contacts the extension 29, and the second side plate 31 contacts the pressing plate 27. A positioning plate 23 is positioned between the first side plate 30 and the second side plate 31. The pulling part 32 is kept in contact with the first side plate 30. The position of the pressing member 5 is restricted by the first side plate 30, the second side plate 31, and the positioning plate 23.

[0045] The fixing rod 8 is installed in the middle of the mounting part 19. A conductive element 7 is provided on the fixing rod 8. The conductive element 7 is sleeved on the fixing rod 8, and the middle of the conductive element 7 is in contact with the pressing part 5. The conductive element 7 consists of a pressing section 6 and symmetrically arranged connecting sections 33, spiral sections 34 and mounting sections 35. The mounting section 35 is provided with a fixing post 36, and the fixing post 36 is provided with a conductive post 9. The middle of the spiral section 34 forms a fixing hole 37 that mates with the fixing rod 8.

[0046] The fixed post 36 is provided with a threaded portion 38, and the conductive post 9 is provided with a threaded hole 39 that mates with the threaded portion 38. The conductive post 9 is provided with symmetrically arranged positioning recesses 40, and the elastic segment 45 is disposed within the positioning recesses 40.

[0047] A pressing area 41 is formed between the spiral segments 34, and a push plate 28 is disposed within the pressing area 41. The push plate 28 is provided with symmetrically arranged receiving openings 42, and a connecting segment 33 is disposed within the receiving openings 42. The push plate 28 is also provided with a pulling part 32, which is arranged perpendicularly to the push plate 28 and is located between the symmetrically arranged receiving openings 42.

[0048] When the pressing member 5 is pressed, the receiving port 42 on the push plate 28 pushes the connecting section 33. When the pressing force is released, the pressing member 5 can be reset under the elastic force of the spring 26 and the spiral section 34, thereby pulling the pressing section 6 to reset via the pulling part 32.

[0049] The fixing member 21 is located in the middle of the mounting member 19. The fixing member 21 is provided with symmetrically arranged electrical contact members 22. The electrical contact members 22 are composed of a contact section 43 and arc-shaped sections 44 and elastic sections 45 located at both ends of the contact section 43. The elastic sections 45 form an electrical contact area 10, and the arc-shaped sections 44 and the contact sections 43 form an installation area. The fixing member 21 is located in the installation area, and the conductive post 9 is placed in the electrical contact area 10.

[0050] The connecting element 22 is located at both ends of the fixing element 21, and the fixing element 21 has a fixing block 47 for connecting to the mounting element 19. The connecting element 22 can be installed on the fixing element 21 with bolts. The fixing element 21 has bolt holes 48 for fixing the wire 49 with bolts. The connecting element 22 has a connecting hole 53. The wire 49 is placed in the connecting hole 53, and then the bolt is placed in the bolt hole 48, so that the bolt fixes the wire 49 to the fixing element 21 and keeps the wire 49 in contact with the connecting element 22 for energization.

[0051] Two symmetrical connecting components 20 are used for two electrical connections. One electrical connection component 22 in one connecting component 20 is used to connect to an external power source, while the other electrical connection component 22 is used to connect to the crusher. The two electrical connection components 22 are connected by a conductive component 7 to realize the circuit connection.

[0052] In its natural state, the distance between the elastic segments 45 is less than the thickness between the positioning recesses 40 on the conductive post 9.

[0053] The elastic segment 45 is arc-shaped, and a horizontal segment 50 is provided in the middle of the elastic segment 45. A fixing arm 51 is provided on one side of the horizontal segment 50, and a bending part 52 is provided on the fixing arm 51, which keeps in contact with another horizontal segment 50. The fixing arm 51 can limit the size of the electrical contact area 10, so that when the conductive post 9 is inserted into the electrical contact area 10, the electrical contact component 22 can maintain stable contact with the conductive post 9.

[0054] When the pusher 4 contacts the presser 5 and the door 3 is turned to open, the pusher 4 pushes the presser 5, causing the spring 26 to compress. The presser 5 pushes the pressing section 6, keeping the conductive part 7 rotating on the fixed rod 8, thereby pulling the conductive post 9 away from the contact area 10.

[0055] When the pusher 4 pushes the connecting section 33 and the pressing section 6, it keeps the spiral section 34 rotating on the fixed rod 8, which drives the mounting section 35 at the other end of the spiral section 34, causing the mounting section 35 to pull the conductive post 9 away from the power-connecting area 10, so that the conductive post 9 no longer contacts the power-connecting part 22, thus achieving power disconnection.

[0056] A method for operating a waste material crusher, using the crusher described above, includes the following steps:

[0057] Step 1: Pull the door 3 and keep the door 3 rotating around the hinge axis 18, so that the pusher on the door 3 pushes the pressing member 5;

[0058] Step 2: Keep the pressing plate 27 on the pressing part 5 compressed with the spring 26;

[0059] Step 3: The push plate 28 on the pressing plate 27 pushes the pressing section 6 on the conductive component 7, causing the spiral section 34 on the conductive component 7 to rotate on the fixed rod 8, which drives the conductive post 9 in the power-on area 10 to disengage from the contact of the power-on component 22, thereby achieving power disconnection.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste material crusher, characterized in that, include: The crushing chamber has a hopper at its upper end, symmetrically arranged crushing rollers inside, a rotating shaft in the middle of each roller, a motor at one end of the rotating shaft, the motor being mounted on the outer wall of the crushing chamber, and a door at the front end of the crushing chamber. A control mechanism mounted on a crushing chamber includes a mounting component and a mounting plate. A hinge shaft is provided on the chamber door, which is hinged to the mounting plate. A symmetrical connecting assembly is provided in the middle of the mounting component, and the connecting assembly includes: A pressing component is provided, which is located in the middle of the mounting component. A positioning plate is provided in the middle of the mounting component, and the positioning plate has a notch. The pressing component is positioned within the notch. Symmetrical positioning rods are provided on the pressing component, and springs are fitted onto the positioning rods. One end of each spring contacts the pressing component, and the other end contacts the positioning plate. A fixing rod is installed in the middle of the mounting component. A conductive element is provided on the fixing rod, and the conductive element is sleeved on the fixing rod. The middle of the conductive element contacts a pressing component. The conductive element consists of a pressing section and symmetrically arranged connecting sections, spiral sections, and mounting sections. A fixing post is provided on the mounting section, and a conductive post is provided on the fixing post. A fixing hole is formed in the middle of the spiral section to mate with the fixing rod. A fixing member is positioned in the middle of the mounting component. The fixing member has symmetrically arranged electrical contact components. Each electrical contact component consists of a contact section, arc-shaped sections at both ends of the contact section, and elastic sections. A contact area is formed between the elastic sections, and a mounting area is formed between the arc-shaped sections and the contact sections. The fixing member is positioned within the mounting area, and the conductive post is placed within the contact area. The door is equipped with a pusher, one end of which is connected to the door and the other end forms an arc end. The arc end is kept in contact with the pressing part. The pusher is also provided with an inwardly recessed relief opening. When the door is opened by rotating, the pusher pushes the pressing part, causing the spring to compress. The pressing part pushes the pressing section, keeping the conductive part rotating on the fixed rod, thereby pulling the conductive column away from the electrical contact area.

2. The waste material crusher according to claim 1, characterized in that, The elastic segment is arc-shaped, and a horizontal segment is provided in the middle of the elastic segment.

3. The waste material crusher according to claim 2, characterized in that, A fixed arm is provided on one side of the horizontal section, and a bent part is provided on the fixed arm, which keeps in contact with another horizontal section.

4. The waste material crusher according to claim 1, characterized in that, The pressing component consists of a pressing plate and a pushing plate. The pressing plate and the pushing plate are arranged perpendicularly. The pressing plate has an extension, and the pushing plate is disposed in a notch.

5. The waste material crusher according to claim 4, characterized in that, A pressing area is formed between the spiral segments, and the push plate is disposed within the pressing area.

6. The waste material crusher according to claim 5, characterized in that, The push plate is provided with symmetrically arranged receiving ports, and the connecting section is disposed within the receiving ports.

7. The waste material crusher according to claim 6, characterized in that, The push plate is also provided with a pulling part, which is arranged perpendicularly to the push plate and is located between symmetrically arranged receiving openings.

8. The waste material crusher according to claim 1, characterized in that, The fixed post is provided with a threaded part, and the conductive post is provided with a threaded hole that mates with the threaded part.

9. The waste material crusher according to claim 1, characterized in that, The conductive post has symmetrically arranged positioning notches, and the elastic segment is disposed within the positioning notches.

10. A working method for a waste material crusher, characterized in that, The method of using the pulverizer of claim 1 includes the following steps: Step 1: Pull the door and keep it rotating around the hinge axis so that the pusher on the door pushes the presser. Step 2: Keep the pressing plate on the pressing part compressed with the spring; Step 3: The push plate on the pressing plate pushes the pressing section on the conductive component, causing the spiral section on the conductive component to rotate on the fixed rod, which drives the conductive post in the energized area to disengage from the contact of the energized component, thereby achieving power disconnection.

Citation Information

Patent Citations

  • Telescopic double-roller crusher with power-off protection function

    CN113893946A

  • Paper crusher with safety device and safeguard at inlet

    CN201055798Y