Bushing outer circle grinding device

By drilling limiting key holes inside the disc brush and adopting an irregular groove design, the problem of cumbersome cleaning of traditional disc brushes is solved, enabling quick disassembly and cleaning, and improving polishing efficiency and safety.

CN223876807UActive Publication Date: 2026-02-06ZHEJIANG JULI POWER TOOLS CO LTD
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Patent Information

Application Number
CN202520481278.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-06
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Traditional disc brushes are cumbersome to clean, affecting polishing efficiency and quality, posing safety hazards, and their complex connection structure makes disassembly inconvenient.

Method used

Limiting key holes are drilled inside the disc brush, and an irregular groove design is adopted. The cylinder and the limiting key are stably connected, which facilitates disassembly and installation and simplifies the cleaning process.

Benefits of technology

It enables quick disassembly and cleaning of the disc brush, avoiding the impact on the grinding work during disassembly and improving safety and equipment stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bush outer circle polishing device which comprises a disc brush, connecting mechanisms are arranged at the two ends of the disc brush, an original round hole in the disc brush is upgraded, a limiting key hole is formed in the disc brush, a special-shaped groove is formed between the round hole and the limiting key hole, and therefore the bush outer circle polishing device can be used for polishing the bush outer circle. The cylinders and the limiting insertion keys in the two connecting mechanisms at the two ends correspond to the round holes and the limiting key holes respectively, special-shaped insertion keys matched with the round holes and the limiting key holes in size are formed between the cylinders and the limiting insertion keys, the insertion keys are inserted into the insertion grooves to complete limiting, and springs in the connecting pipes can form thrust on the fixing rods. When dismounting and cleaning are needed in the later period, the fixing rod contracts towards the interior of the connecting pipe until the cylinder and the limiting insertion key are pulled out of the round hole and the limiting key hole, dismounting is convenient and fast, and too much time cannot be delayed. And the polishing work on the outer circle of the bushing is not influenced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a polishing device technical field, especially a bushing outer circle polishing device. BACKGROUND

[0002] The main purpose of using a disc brush to polish the outer circle of the bushing is to remove burrs and improve surface finish. The disc brush has grinding and polishing functions. Through the softness and wear resistance of its bristles, it can effectively finely polish the outer circle of the bushing and remove tiny burrs and uneven parts generated during processing. This not only improves the overall appearance quality of the bushing, but also ensures its cooperation accuracy and sealing performance with other components, thereby improving the stability and service life of the entire mechanical system. However, the disc brush is difficult to disassemble, and during the polishing process, the brush will accumulate a large amount of dirt and debris. Therefore, the brush needs to be cleaned regularly to maintain its good polishing effect and service life.

[0003] If the brush used for polishing is not cleaned regularly, the following problems may occur:

[0004] Reduced polishing efficiency:

[0005] During use, the brush will accumulate a large amount of dirt, debris, and metal particles. These impurities will block the gaps between the bristles, reducing the contact area between the bristles and the workpiece surface, thereby reducing the polishing efficiency;

[0006] Influence of polishing quality:

[0007] The presence of impurities will cause uneven polishing, and the workpiece surface may have scratches, pits, or residues, affecting the final polishing quality;

[0008] Accelerate the wear of the bristles:

[0009] Hard particles in impurities will accelerate the wear of the bristles, shortening the service life of the brush. Long-term cleaning may also cause the bristles to break or deform;

[0010] Increased equipment load:

[0011] Accumulated impurities will increase the load of the polishing machine, which may cause the motor to overheat, the transmission system to wear, and even damage the equipment in severe cases;

[0012] Safety hazards:

[0013] Accumulated impurities may splash out during work, posing a safety hazard to operators. At the same time, uncleaned brushes may vibrate due to imbalance during rotation, increasing the risk of equipment failure.

[0014] The traditional disc brush is connected with a fixed rod through a fixed connecting piece, the rod is communicated with the disc, one end of the rod penetrating the disc is fixed with the bearing in the bearing frame through a connection to achieve the rotating effect, and the other end is connected with the motor output end through another connecting piece.

[0015] When the disc brush needs to be cleaned, the connecting piece at the connecting position of the rod and the bearing and the motor shaft end needs to be disassembled, and even the rod and the disc brush need to be disassembled, so that the disc brush can be cleaned. The utility model discloses a bushing outer circle polishing device, can effectively solve the problem in the prior art.

[0016] The utility model discloses a bushing outer circle polishing device, can effectively solve the problem in the prior art.

[0017] In order to achieve the above object, the technical scheme adopted by the utility model is:

[0018] A bushing outer circle polishing device, including disc brush, both ends of disc brush are equipped with connecting mechanism, the lateral wall of disc brush is communicated and is excavated with round hole, the inside of round hole is excavated with limit key hole, connecting mechanism includes connecting pipe, the inside of connecting pipe is inserted with fixed rod near one end of disc brush, one end of fixed rod extends to the outside of connecting pipe, the inside of connecting pipe is fixed with spring away from one end of fixed rod, one end of fixed rod is fixed with the disc that lies in the outside of connecting pipe, the disc is fixed with cylinder and limit key away from one end of fixed rod.

[0019] Preferably, the cylinder and the limit key are respectively inserted into the inside of the round hole and the limit key hole, and the outer dimension formed between the cylinder and the limit key matches the inner dimension formed between the round hole and the limit key hole.

[0020] Preferably, the spring and the fixed rod are fixedly connected at the end close to each other.

[0021] Preferably, the fixed rod and the connecting pipe are slidingly connected.

[0022] Preferably, the disc and the lateral wall of the disc brush are in contact.

[0023] Preferably, the connecting pipe is fixed with a mounting seat away from the disc.

[0024] Preferably, the disc is fixed with a handle at both ends close to the fixed rod.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] This application upgrades the original circular hole inside the disc brush by adding a limiting key hole. A groove is formed between the circular hole and the limiting key hole. The cylinder and limiting key in the two connecting mechanisms at both ends correspond to the circular hole and the limiting key hole, respectively. A shaped key with a size matching the circular hole and the limiting key hole is formed between the cylinder and the limiting key hole. The key is inserted into the slot to complete the limiting. The spring in the connecting tube can generate a pushing force on the fixing rod, so that the cylinder and the limiting key are stably inserted into the circular hole and the limiting key hole, achieving a stable insertion effect. When disassembly and cleaning are required later, the fixing rod retracts into the connecting tube until the cylinder and the limiting key hole are pulled out from the circular hole and the limiting key hole. Disassembly is convenient and quick, without wasting too much time, so as not to affect the grinding work of the outer circle of the bushing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a bushing outer circle grinding device according to the present invention;

[0028] Figure 2 This is a schematic diagram of the circular hole and cross hole of a bushing outer circle grinding device according to the present invention;

[0029] Figure 3 This is a schematic diagram of the external structure of the connecting mechanism of the bushing outer circle grinding device of this utility model;

[0030] Figure 4 This is a cross-sectional view of the internal structure of the connecting pipe of the bushing outer circle grinding device of this utility model.

[0031] In the diagram: 1. Circular brush; 11. Circular hole; 12. Limit key hole; 2. Connecting mechanism; 21. Connecting tube; 22. Spring; 23. Fixing rod; 24. Support plate; 25. Cylinder; 26. Limit key; 27. Mounting base; 28. Handle. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0033] like Figures 1-4 As shown, a bushing outer circle grinding device includes a disc brush 1. Both ends of the disc brush 1 are provided with connecting mechanisms 2. A circular hole 11 is drilled through the side wall of the disc brush 1. A limiting key hole 12 is drilled inside the circular hole 11. The connecting mechanism 2 includes a connecting tube 21. A fixing rod 23 is inserted into the end of the connecting tube 21 near the disc brush 1. One end of the fixing rod 23 extends to the outside of the connecting tube 21. A spring 22 is fixed to the end of the connecting tube 21 away from the fixing rod 23. A stop plate 24 is fixed to the end of the fixing rod 23 outside the connecting tube 21. A cylinder 25 and a limiting key 26 are fixed to the end of the stop plate 24 away from the fixing rod 23.

[0034] Specifically, the cylinder 25 and the limiting key 26 are respectively inserted in the inside of the round hole 11 and the limiting key hole 12, and the outer size formed between the cylinder 25 and the limiting key 26 matches the inner size formed between the round hole 11 and the limiting key hole 12, so that the size difference is avoided to shake.

[0035] Specifically, the spring 22 is fixedly connected with one end of the fixed rod 23 close to each other.

[0036] Specifically, the fixed rod 23 is slidingly connected with the connecting pipe 21, so that the cylinder 25 and the limiting key 26 are horizontally moved.

[0037] Specifically, the stop disc 24 is in contact with the side wall of the disc brush 1.

[0038] Specifically, the connecting pipe 21 is fixedly connected with the mounting seat 27 away from the stop disc 24, and the mounting seat 27 is connected with the bearing frame and the motor output end through the connecting piece.

[0039] Specifically, the stop disc 24 is fixedly connected with the handle 28 at both ends close to the fixed rod 23, and the cylinder 25 and the limiting key 26 can be pulled out from the round hole 11 and the limiting key hole 12 through the handle 28.

[0040] Working principle:

[0041] The round hole 11 in the disc brush 1 is upgraded, and the limiting key hole 12 is additionally drilled, and the special-shaped slot is formed between the round hole 11 and the limiting key hole 12. The cylinder 25 and the limiting key 26 in the two connecting mechanisms 2 at both ends correspond to the round hole 11 and the limiting key hole 12 respectively, and the special-shaped key with the size matching the round hole 11 and the limiting key hole 12 is formed between the cylinder 25 and the limiting key 26. The key is inserted into the slot to complete the limiting, and the spring 22 in the connecting pipe 21 can form a thrust force on the fixed rod 23, so that the cylinder 25 and the limiting key 26 are stably inserted into the round hole 11 and the limiting key hole 12, and the effect of stable insertion is achieved. When disassembly and cleaning are needed in the later period, the fixed rod 23 is retracted into the connecting pipe 21 until the cylinder 25 and the limiting key 26 are pulled out from the round hole 11 and the limiting key hole 12, so that the disassembly is convenient and fast, and a lot of time is not wasted, so as to avoid affecting the polishing work of the outer circle of the bushing.

[0042] The circuit, the electronic components and the control module are all prior art, and the person skilled in the art can realize them without further description. The content protected by the utility model does not involve the improvement of software and method.

[0043] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A bushing outer circle polishing device comprising a disc brush (1), characterized in that: Both ends of the disc brush (1) are provided with connecting mechanisms (2), a side wall of the disc brush (1) is provided with a round hole (11) penetratingly drilled, the inside of the round hole (11) is provided with a limiting key hole (12), the connecting mechanism (2) comprises a connecting pipe (21), a fixed rod (23) is inserted into one end of the connecting pipe (21) close to the disc brush (1), one end of the fixed rod (23) extends to the outside of the connecting pipe (21), a spring (22) is fixed to one end of the connecting pipe (21) away from the fixed rod (23), one end of the fixed rod (23) located outside the connecting pipe (21) is fixed with a stop disc (24), one end of the stop disc (24) away from the fixed rod (23) is fixed with a cylinder (25) and a limiting key (26).

2. A bushing outer diameter polishing apparatus as set forth in claim 1, characterized by: The cylinder (25) and the limiting key (26) are respectively inserted into the inside of the round hole (11) and the limiting key hole (12), and the outer dimension formed between the cylinder (25) and the limiting key (26) matches the inner dimension formed between the round hole (11) and the limiting key hole (12).

3. The bushing outer diameter polishing apparatus of claim 1, wherein: The spring (22) and the fixed rod (23) are fixedly connected at the end close to each other.

4. The bushing outer diameter polishing apparatus of claim 1, wherein: The fixed rod (23) is slidingly connected with the connecting pipe (21).

5. The bushing outer diameter polishing apparatus of claim 1, wherein: The stop disc (24) is in contact with the side wall of the disc brush (1).

6. The bushing outer diameter polishing apparatus of claim 1, wherein: One side of the connecting pipe (21) away from the stop disc (24) is fixedly provided with a mounting seat (27).

7. The bushing outer diameter polishing apparatus of claim 1, wherein: Both ends of the side of the stop disc (24) close to the fixed rod (23) are fixedly provided with handles (28).