Durable weighted pulverizer

By designing a lubrication component in the crusher, the friction between the friction sleeve and the arc plate generates thrust to automatically replenish the lubricating oil, solving the problem of weakened lubricating oil film bearing capacity, achieving full lubrication of the main shaft, and preventing wear.

CN224079959UActive Publication Date: 2026-04-03YANTAI LULI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

When the main shaft of an existing crusher rotates at high speed, the temperature of the lubricating oil rises, which weakens the bearing capacity of the lubricating oil film. The lubricating oil relies on manual addition and cannot be replenished in time, which easily leads to wear of the main shaft.

Method used

A lubrication assembly was designed, including a storage box, a sealing oil sleeve, a drain pipe, and a slide valve. The friction between the friction sleeve and the arc plate generates thrust, which drives the slide valve to move upward, opening the oil circuit and realizing automatic replenishment and circulation of lubricating oil, ensuring that the spindle and bearings are adequately lubricated when operating under high load.

Benefits of technology

It enables automatic replenishment and circulation of lubricating oil, avoiding lubricating oil waste and ensuring that the spindle and bearings are adequately lubricated during high-load operation, thus preventing spindle wear.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224079959U_ABST
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Abstract

The utility model discloses a durable weighting type crusher, which relates to the technical field of crushers, and comprises a crusher body and a main shaft body, a crushing cutter is arranged on the surface of the main shaft body, a stepping motor is arranged at the side end of the crusher body, and a lubricating assembly is arranged on the surface of the main shaft body. The lubricating assembly comprises a storage box, a sealing oil sleeve, a discharging pipe and a sliding valve, soft sleeves are arranged at the two ends of the sliding valve, a valve element and a valve sleeve are arranged in the sliding valve, a connector is fixedly installed at the top end of the storage box, the fixing frame and the arc-shaped plate are pushed to reset downwards, the sliding valve falls back to close an oil way, and when a closing valve at the bottom end of the sealing oil sleeve is opened, the sealing oil sleeve is closed. Internal redundant lubricating oil is discharged through the discharge pipe; and meanwhile, new lubricating oil can be supplemented through the discharge pipe, circulating oil change is achieved, at least two fins with the same interval are arranged in the sealing oil sleeve, the entering lubricating oil is guided in a layered mode, the flowing path of the lubricating oil in the sealing oil sleeve is optimized, and the lubricating coverage and effect are improved.
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Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to a durable heavy-duty crusher. Background Technology

[0002] Heavy-duty crushers are devices designed for specific materials (such as large plastics, wood, etc.) and whose crushing capacity and stability are improved through reinforced structural design (thicker plates, thicker main shaft, etc.).

[0003] Currently, existing crushers (such as patent publication number: CN220126406U) disclose a hammer mill, which has a large shock-absorbing spring at the center of the center of gravity stabilizing plate. The weight inside the center of gravity stabilizing plate is increased or decreased by the number of metal weight plates, which can be operated according to the usage requirements. By adding weight to the bottom, the center of gravity of the moving base is increased, making it more stable, which plays a certain auxiliary role in shock absorption and increases the anti-vibration effect.

[0004] In the aforementioned patent, the spindle is driven to rotate by a motor. When the spindle rotates at high speed, the temperature of the lubricating oil will rise, which will weaken the bearing capacity of the lubricating oil film. The lubricating oil depends on manual addition and cannot be replenished in time, which will easily lead to spindle wear. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a durable heavy-duty crusher that solves the technical problem that when the main shaft rotates at high speed, the temperature of the lubricating oil will rise, resulting in a weakening of the lubricating oil film's load-bearing capacity. Furthermore, the lubricating oil relies on manual addition and cannot be replenished in a timely manner, which easily leads to wear on the main shaft.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A durable heavy-duty pulverizer includes a pulverizer body and a main shaft body. The surface of the main shaft body is provided with pulverizing blades, and a stepper motor is provided at the side end of the pulverizer body. The pulverizer also includes...

[0008] The lubrication assembly is disposed on the surface of the spindle body. The lubrication assembly includes a storage box, a sealing oil sleeve, a drain pipe, and a slide valve. Both ends of the slide valve are provided with soft sleeves. The slide valve is provided with a valve core and a valve sleeve inside. An interface is fixedly installed at the top of the storage box.

[0009] Preferably, a closing valve is fixedly installed at the bottom end of the sealing oil sleeve, and a discharge pipe is fixedly installed at the end of the closing valve;

[0010] Two telescopic sleeves are fixedly installed at the bottom end of the sealing oil sleeve, and the ends of the two telescopic sleeves are fixedly installed with the same fixing frame.

[0011] Preferably, an arc-shaped plate is fixedly installed on the side end of the fixing frame, and the telescopic sleeve has an arc-shaped structure;

[0012] A friction sleeve is provided on the surface of the main spindle body, and the surface of the friction sleeve has a raised structure.

[0013] At least two fins are fixedly installed inside the sealing oil sleeve, and the spacing between each fin is the same.

[0014] Compared with the prior art, the present invention has the following beneficial effects;

[0015] In this invention, when the spindle body rotates, the surface friction sleeve rotates synchronously. The rotating friction sleeve rubs against the arc-shaped plate on the side of the fixed frame. When the protruding end contacts the arc-shaped plate, it generates an upward thrust, which drives the slide valve to slide upward along the discharge pipe. The valve core and valve sleeve inside the slide valve move upward with the slide valve, opening the oil passage. The lubricating oil then enters the sealing oil sleeve to lubricate the spindle body and bearings, avoiding the waste of lubricating oil caused by continuous oil supply, and ensuring that the spindle and bearings are fully lubricated when operating under high load.

[0016] In this invention, when the valve at the bottom of the sealing oil sleeve is opened, excess lubricating oil inside is discharged through the discharge pipe; at the same time, new lubricating oil can be added through the discharge pipe to achieve oil circulation and replacement. Inside the sealing oil sleeve, there are at least two fins with the same spacing to guide the incoming lubricating oil in layers, optimize the flow path of the lubricating oil in the sealing oil sleeve, and improve the lubrication coverage effect. Attached Figure Description

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is a structural diagram of the pulverizer body of this utility model;

[0019] Figure 2 This is a front view of the main shaft body of this utility model;

[0020] Figure 3 This is a structural diagram of the sealing oil sleeve of this utility model;

[0021] Figure 4 This is a structural diagram of the storage box of this utility model.

[0022] In the diagram: 11. Crusher body; 12. Main shaft body; 13. Storage box; 14. Interface; 15. Friction sleeve; 16. Sealing oil sleeve; 17. Closing valve; 18. Discharge pipe; 19. Fin; 21. Inlet pipe; 22. Slide valve; 23. Fixing frame; 24. Telescopic sleeve; 25. Arc plate. Detailed Implementation

[0023] This application provides a durable heavy-duty crusher that effectively solves the problem that when the main shaft rotates at high speed, the lubricating oil temperature rises, weakening the lubricating oil film's carrying capacity. The lubricating oil relies on manual addition, which cannot be replenished in a timely manner and easily leads to main shaft wear. When the main shaft rotates, the surface friction sleeve rotates synchronously. The rotating friction sleeve rubs against the arc-shaped plate on the side of the fixed frame. When the protruding end contacts the arc-shaped plate, it generates an upward thrust, causing the slide valve to slide upward along the discharge pipe. The valve core and valve sleeve inside the slide valve move upward with the slide valve, opening the oil passage. Lubricating oil then enters the sealed oil sleeve to lubricate the main shaft and bearings, avoiding lubricating oil waste caused by continuous oil supply. Simultaneously, it ensures that the main shaft and bearings are adequately lubricated during high-load operation.

[0024] Example

[0025] like Figures 1-4 As shown, the technical solution in this application embodiment effectively solves the technical problem that when the spindle rotates at high speed, the temperature of the lubricating oil will rise, resulting in a weakening of the lubricating oil film's load-bearing capacity. Furthermore, the lubricating oil relies on manual addition, which cannot be replenished in a timely manner, easily leading to spindle wear. The overall approach is as follows:

[0026] To address the problems existing in the prior art, this utility model provides a durable heavy-duty crusher, including a crusher body 11 and a main shaft body 12. The surface of the main shaft body 12 is provided with crushing blades, and a stepper motor is provided on the side of the crusher body 11. The material is conveyed into the interior of the crusher body 11 through the feed port at the top of the crusher body 11. The motor, in conjunction with a belt, drives the main shaft body 12 to rotate, and the main shaft body 12 drives the crushing blades inside the crusher body 11 to rotate, thereby crushing the material.

[0027] The lubrication assembly is located on the surface of the spindle body 12. The lubrication assembly includes a storage box 13, a sealing oil sleeve 16, a drain pipe 21, and a slide valve 22. Both ends of the slide valve 22 are provided with soft sleeves. The slide valve 22 contains a valve core and a valve sleeve. An interface 14 is fixedly installed at the top of the storage box 13. Lubricating oil is stored in the storage box 13 through the interface 14. At the same time, the bottom end of the storage box 13 is connected to the interior of the sealing oil sleeve 16 through the drain pipe 21. Moving the sealing oil sleeve 16 allows it to slide upwards and open the valve core. The lubricating oil inside the storage box 13 enters the interior of the sealing oil sleeve 16 through the drain pipe 21 to lubricate the spindle body 12 and the bearings.

[0028] A closing valve 17 is fixedly installed at the bottom end of the sealing oil sleeve 16, and a discharge pipe 18 is fixedly installed at the end of the closing valve 17. When the closing valve 17 is opened, the excess lubricating oil inside the sealing oil sleeve 16 is discharged through the discharge pipe 18. New lubricating oil is added to the inside of the sealing oil sleeve 16 through the discharge pipe 21. At the same time, the discharge pipe 18 discharges the original lubricating oil inside, forming a cycle.

[0029] Two telescopic sleeves 24 are fixedly installed at the bottom end of the sealing oil sleeve 16. The same fixed frame 23 is fixedly installed at the end of the two telescopic sleeves 24. When the fixed frame 23 slides upward, it drives the slide valve 22 to move upward. The fixed frame 23 slides upward and squeezes the two telescopic sleeves 24. The telescopic sleeves 24 are compressed by force. At the same time, a spring rod is set inside the telescopic sleeve 24. After the telescopic sleeve 24 is compressed, it generates a reverse force on the fixed frame 23, pushing the fixed frame 23 to move downward and reset.

[0030] An arc-shaped plate 25 is fixedly installed on the side end of the fixed frame 23. The telescopic sleeve 24 has an arc-shaped structure. The rotating main shaft body 12 drives the friction sleeve 15 to rotate. The rotating friction sleeve 15 rubs against the arc-shaped plate 25, generating an upward thrust on the arc-shaped plate 25, which drives the slide valve 22 to slide upward inside the discharge pipe 21.

[0031] The surface of the spindle body 12 is provided with a friction sleeve 15. The surface of the friction sleeve 15 has a raised structure. The rotating friction sleeve 15 rubs against the arc plate 25. The raised end rubs against the arc plate 25, generating a thrust on the arc plate 25, causing the arc plate 25 to slide upward. When the protruding end of the friction sleeve 15 rotates away from the bottom end of the arc plate 25, the arc plate 25 moves downward and resets itself under the auxiliary thrust of the telescopic sleeve 24.

[0032] At least two fins 19 are fixedly installed inside the sealing oil sleeve 16. The spacing between each fin 19 is the same. The fins 19 are installed inside the sealing oil sleeve 16 to guide the lubricating oil into the sealing oil sleeve 16 in layers and guide the flow of the lubricating oil.

[0033] Working principle:

[0034] In the first step, the material enters the crusher body 11 through the feed port at the top. The stepper motor, in conjunction with the belt, drives the main shaft body 12 to rotate. The main shaft body 12 drives the surface crushing blades to rotate, crushing the material. When the main shaft body 12 rotates, the surface friction sleeve 15 rotates synchronously. The rotating friction sleeve 15 rubs against the arc plate 25 on the side of the fixed frame 23. When the protruding end contacts the arc plate 25, it generates an upward thrust, which drives the slide valve 22 to slide upward along the discharge pipe 21. The valve core and valve sleeve inside the slide valve 22 move upward with the slide valve 22, opening the oil circuit. The lubricating oil in the storage box 13 is stored through the top interface 14, and the bottom end is connected to the sealing oil sleeve 16 through the discharge pipe 21. The lubricating oil enters the interior of the sealing oil sleeve 16 through this connection, lubricating the main shaft body 12 and the bearings.

[0035] In the second step, when the protruding end of the friction sleeve 15 leaves the bottom end of the arc plate 25, the telescopic sleeve 24 connected to the fixed frame 23 generates a reverse force due to compression, pushing the fixed frame 23 and the arc plate 25 to reset downwards, and the slide valve 22 falls back to close the oil circuit.

[0036] When the closing valve 17 at the bottom of the sealing oil sleeve 16 is opened, the excess lubricating oil inside is discharged through the discharge pipe 18; at the same time, new lubricating oil can be added through the discharge pipe 21 to achieve oil circulation and replacement. Inside the sealing oil sleeve 16, there are at least two fins 19 with the same spacing to guide the incoming lubricating oil in layers, optimize the flow path of the lubricating oil in the sealing oil sleeve 16, and improve lubrication coverage and effect.

[0037] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A durable type weight-type pulverizer including a pulverizer body (11) and a main shaft body (12), characterized in that, The surface of the main shaft body (12) is provided with a crushing cutter, the side end of the crusher body (11) is provided with a stepping motor, further comprising; A lubricating assembly is arranged on the surface of the main shaft body (12), the lubricating assembly comprises a storage box (13), a sealed oil sleeve (16), a discharge pipe (21) and a slide valve (22), both ends of the slide valve (22) are provided with a soft sleeve, the inside of the slide valve (22) is provided with a valve core and a valve sleeve, and the top end of the storage box (13) is fixedly installed with a connector (14).

2. A heavy-duty shredder as claimed in claim 1, wherein, The bottom end of the sealed oil sleeve (16) is fixedly installed with a closing valve (17), and the tail end of the closing valve (17) is fixedly installed with a discharge pipe (18).

3. A heavy-duty shredder as claimed in any one of claims 1-2, characterized in that The bottom end of the sealed oil sleeve (16) is fixedly installed with two telescopic sleeves (24), and the tail end of the two telescopic sleeves (24) is fixedly installed with a same fixing frame (23).

4. A heavy-duty shredder as claimed in claim 3, wherein, The side end of the fixing frame (23) is fixedly installed with an arc-shaped plate (25), and the telescopic sleeve (24) is in an arc-shaped structure.

5. A heavy-duty shredder as claimed in claim 1, wherein, The surface of the main shaft body (12) is provided with a friction sleeve (15), and the surface of the friction sleeve (15) is in a convex structure.

6. A heavy-duty shredder as claimed in claim 1, wherein, At least two fins (19) are fixedly installed in the sealed oil sleeve (16), and the spacing of each fin (19) is the same.

Citation Information

Patent Citations

  • Hammer mill

    CN220126406U