A straight pipe polishing machine for motorcycle exhaust pipes

By designing a motorcycle exhaust pipe polishing machine with transmission, rotating, and polishing components, the problems of poor production continuity and uneven polishing were solved. This achieved stable transmission and full-circumference polishing of the exhaust pipe, improving production efficiency and quality.

CN224488661UActive Publication Date: 2026-07-14DANYANG DONGJIANG METAL PRODUCTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DANYANG DONGJIANG METAL PRODUCTS CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing motorcycle exhaust pipe polishing equipment suffers from poor production continuity, uneven polishing, and insufficient transmission stability, making it difficult to meet the quality and efficiency requirements of mass production.

Method used

A straight pipe polishing machine for motorcycle exhaust pipes was designed, including a transmission component, a rotating component, and a polishing component. The transmission component achieves stable transmission of the exhaust pipe through a bracket, a main pulley, a belt strip, and a support roller. The rotating component achieves synchronous rotation by driving the support roller. The polishing component achieves full-circumference polishing through a polishing belt roller and a pressure limiting roller.

Benefits of technology

It improves the continuity and efficiency of polishing, ensures the uniformity and quality of polishing, enhances the stability of transmission, has a reasonable structural design and is versatile, and can adapt to the polishing needs of exhaust pipes of different specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to motorcycle accessory processing equipment technical field especially is a kind of straight pipe polishing machine for motorcycle exhaust pipe, it includes: transmission part, transmission part is used for exhaust pipe transmission;Rotary part, rotary part is located in transmission part, and rotary part is used to drive support roller rotation;Polishing part, polishing part is located above transmission part, and polishing part is used to polish exhaust pipe placed above adjacent two support rollers;Lifting polishing continuity and efficiency: through the design of transmission part, the continuous movement of exhaust pipe is realized, so that exhaust pipe can uninterruptedly pass below polishing part and carry out polishing operation, avoid the time waste caused by frequent shutdown and replacement of polishing position in traditional equipment, significantly improve the continuity and overall production efficiency of motorcycle exhaust pipe straight pipe polishing.
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Description

Technical Field

[0001] This utility model belongs to the technical field of motorcycle parts processing equipment, specifically relating to a straight pipe polishing machine for motorcycle exhaust pipes. Background Technology

[0002] In the manufacturing process of motorcycle exhaust pipes, polishing the straight section is a crucial step in ensuring the product's appearance quality and performance. Currently, traditional exhaust pipe polishing methods mostly involve manual hand-held polishing tools or simple fixed equipment for single-stage polishing. Manual polishing is not only labor-intensive and inefficient, but its polishing accuracy is also greatly affected by the operator's skill level, easily leading to uneven polishing and inconsistent surface roughness, making it difficult to meet the consistency requirements of mass production.

[0003] While existing mechanized polishing equipment reduces labor costs to some extent, most suffer from flawed structural designs. For example, some equipment can only polish fixed positions on the exhaust pipe, requiring frequent shutdowns to change the polishing location, resulting in poor production continuity. Other equipment, while capable of conveying the exhaust pipe, cannot synchronously drive its rotation during conveyance, limiting polishing tools to localized areas and hindering uniform polishing across the entire circumference. Furthermore, the conveying mechanisms of traditional equipment lack stability, prone to wobbling or shifting during exhaust pipe transport, further impacting polishing quality and efficiency. Therefore, there is an urgent need for equipment capable of stable exhaust pipe transport, synchronous rotation, and efficient polishing to address the problems in existing technologies. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a straight pipe polishing machine for motorcycle exhaust pipes. The specific technical solution is as follows:

[0005] A straight pipe polishing machine for motorcycle exhaust pipes includes: a transmission component for driving the exhaust pipe; the transmission component includes a bracket; main pulleys are rotatably mounted at the four corners of the bracket; a first drive motor is mounted on the outer side of the bracket, and the output shaft of the first drive motor is fixed to one of the main pulleys; support rollers arranged in a circular array are arranged above the bracket; the two ends of several support rollers are rotatably mounted on two belt strips; the exhaust pipe is placed above two adjacent support rollers during transmission, and the belt strips are arranged on two main pulleys; auxiliary pulleys are rotatably mounted on the inner side of the bracket in a linear arrangement, and the auxiliary pulleys are located on the inner surface of the upper part of the belt strips.

[0006] A rotating component, located within a transmission component, is used to drive the support roller to rotate.

[0007] A polishing component, located above the transmission component, is used to polish exhaust pipes placed above two adjacent support rollers.

[0008] Preferably, the rotating component includes a base bracket welded to the inner side of the support, a side frame welded above the base bracket, drive wheels rotatably mounted at both ends of the side frame, a second drive motor mounted on the outer side of the side frame, the output shaft of the second drive motor being fixed to one of the drive wheels, and a drive belt being sleeved on both drive wheels, with the drive belt in contact with the inner surface of the upper support roller.

[0009] Preferably, the polishing component includes an upper frame fixed to the upper end of a bracket, two polishing belt rollers rotatably mounted on the upper part of the upper frame, a third drive motor mounted on the outer side of the upper frame, and the output shaft of the third drive motor fixed to the polishing belt rollers, a polishing pressure limiting roller mounted on the inner side of the upper frame, an elastic element mounted between the polishing pressure limiting roller and the upper frame, a polishing belt for the exhaust pipe being provided outside the polishing belt roller and the polishing pressure limiting roller, and a pressure limiting element for limiting the pressure of the polishing belt being provided above the upper frame.

[0010] Preferably, the elastic element includes a guide rod movably mounted at the end of the polishing pressure limiting roller shaft, and the two ends of the guide rod are respectively fixed to the bracket and the upper frame. A spring is sleeved on the upper part of the guide rod, and the upper end of the spring is fixed to the inner surface of the upper frame.

[0011] Preferably, the pressure limiting component includes a guide frame welded to the upper part of the upper frame, a polishing belt pressure limiting roller for pressure limiting is provided above the polishing belt, and the shafts at both ends of the polishing belt pressure limiting roller are rotatably installed in the guide frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Improve polishing continuity and efficiency: The design of the transmission components enables continuous movement of the exhaust pipe, allowing it to pass uninterruptedly under the polishing parts for polishing. This avoids the time wasted due to frequent machine stops to change polishing positions in traditional equipment, significantly improving the continuity and overall production efficiency of motorcycle exhaust pipe straight pipe polishing.

[0014] 2. Ensuring Polishing Uniformity and Quality: The rotating component drives the support roller to rotate, which in turn causes the exhaust pipe placed on the support roller to rotate synchronously. This rotational motion allows the polishing component to uniformly process the entire circumference of the exhaust pipe, effectively solving the problem of localized over- or under-polishing caused by the fixed exhaust pipe in traditional polishing methods, and significantly improving the uniformity and overall quality of the polished surface.

[0015] 3. Enhanced transmission stability: The auxiliary pulley in the transmission component is located on the inner surface of the upper part of the belt, providing effective support for the belt and preventing swaying or deviation during the movement of the support roller and exhaust pipe. Simultaneously, the main pulleys at the four corners cooperate with the belt to ensure smooth transmission, providing a reliable guarantee for the stable transmission of the exhaust pipe and further ensuring the stability and precision of the polishing operation.

[0016] 4. The structure is rationally designed and highly practical: The transmission system consists of a bracket, main pulley, first drive motor, belt, support roller, and auxiliary pulley. These components work together to achieve the transmission and rotation functions of the exhaust pipe. The overall structure is compact and rationally designed. This design not only facilitates the installation, debugging, and maintenance of the equipment but also adapts to the polishing requirements of straight exhaust pipes for different specifications of motorcycles, demonstrating strong practicality and versatility. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of a half-section of the present invention;

[0019] Figure 3 for Figure 1 Enlarged structural diagram at point A;

[0020] Figure 4 This is a schematic diagram of the belt strip and support roller structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the rotating component structure in this utility model.

[0022] Reference numerals in the attached drawings: 1. Bracket; 2. Main pulley; 3. First drive motor; 4. Belt strip; 5. Support roller; 6. Base bracket; 7. Side frame; 8. Drive wheel; 9. Second drive motor; 10. Drive belt; 11. Upper frame; 12. Polishing belt roller; 13. Third drive motor; 14. Polishing pressure limiting roller; 15. Guide rod; 16. Spring; 17. Guide frame; 18. Polishing belt pressure limiting roller; 19. Polishing belt; 20. Secondary pulley. Detailed Implementation

[0023] The technical solution of this utility model will now be described with reference to the accompanying drawings and embodiments.

[0024] Please see Figure 1-5 This embodiment provides the following technical solution: a straight pipe polishing machine for motorcycle exhaust pipes, comprising:

[0025] The transmission component is used for exhaust pipe transmission. The transmission component includes a bracket 1. The bracket 1 has main pulleys 2 rotatably mounted at its four corners. A first drive motor 3 is mounted on the outside of the bracket 1, and the output shaft of the first drive motor 3 is fixed to one of the main pulleys 2. Support rollers 5 arranged in a circular array are arranged above the bracket 1. The two ends of several support rollers 5 are rotatably mounted on two belt strips 4. When the exhaust pipe is being transmitted, it is placed above two adjacent support rollers 5, and the belt strips 4 are arranged on two main pulleys 2. A secondary pulley 20 arranged in a linear pattern is rotatably mounted on the inside of the bracket 1, and the secondary pulley 20 is located on the inner surface of the upper part of the belt strips 4.

[0026] A rotating component is located inside a transmission component and is used to drive the support roller 5 to rotate.

[0027] The polishing component is located above the transmission component and is used to polish the exhaust pipe placed above the two adjacent support rollers 5.

[0028] In this embodiment, a transmission component, a rotating component, and a polishing component are provided. The transmission component is used for exhaust pipe transmission, and the rotating component is used for the exhaust pipe to rotate during the transmission process. This facilitates polishing when the rotating exhaust pipe passes under the polishing component. The transmission component causes the exhaust pipe to move continuously, thereby improving the continuity of the motorcycle exhaust pipe polishing. The transmission component consists of a bracket 1, a main pulley 2, a first drive motor 3, a belt 4, a support roller 5, and a secondary pulley 20. The output shaft of the first drive motor 3 is fixed to one of the main pulleys 2, which facilitates the main pulley 2 to drive the belt 4, so that the belt 4 moves with the support roller 5. This facilitates the support roller 5 to drive the exhaust pipe placed above. The belt 4 is also supported by the secondary pulley 20, which increases the stability of the belt 4 during movement.

[0029] Specifically, the rotating component includes a base bracket 6 welded to the inner side of the bracket 1, a side bracket 7 welded above the base bracket 6, drive wheels 8 rotatably mounted at both ends of the side bracket 7, a second drive motor 9 mounted on the outer side of the side bracket 7, the output shaft of the second drive motor 9 being fixed to one of the drive wheels 8, and a drive belt 10 being sleeved on both drive wheels 8, with the drive belt 10 in contact with the inner surface of the upper support roller 5.

[0030] In this embodiment, a rotating component consisting of a base bracket 6, a side frame 7, a drive wheel 8, a second drive motor 9, and a drive belt 10 is used. The base bracket 6 supports the side frame 7, and the side frame 7 supports the drive belt 10 through the drive wheels 8 installed at both ends. The drive wheels 8 are driven by the second drive motor 9, which facilitates the contact between the drive belt 10 and the support roller 5. The displacement direction of the drive belt 10 is opposite to that of the support roller 5, so that the moving drive belt 10 causes the support roller 5 to rotate. In order to improve the stability of the rotation of the support roller 5, the outer surfaces of the drive belt 10 and the support roller 5 are provided with interlocking patterns.

[0031] Specifically, the polishing component includes an upper frame 11 fixed at the upper end of the bracket 1. Two polishing belt rollers 12 are rotatably mounted on the upper part of the upper frame 11. A third drive motor 13 is mounted on the outer side of the upper frame 11, and the output shaft of the third drive motor 13 is fixed to the polishing belt rollers 12. A polishing pressure limiting roller 14 is mounted on the inner side of the upper frame 11. An elastic element is installed between the polishing pressure limiting roller 14 and the upper frame 11. A polishing belt 19 for the exhaust pipe is provided outside the polishing belt rollers 12 and the polishing pressure limiting roller 14. A pressure limiting element for limiting the pressure of the polishing belt 19 is provided above the upper frame 11.

[0032] In this embodiment, a polishing component consisting of an upper frame 11, a polishing belt roller 12, a third drive motor 13, a polishing pressure limiting roller 14, a polishing belt 19, a pressure limiting component, and an elastic component is used. The elastic component is used to press down the polishing pressure limiting roller 14. At this time, the polishing pressure limiting roller 14 presses down on the lower part of the polishing belt 19, so that the lower part of the polishing belt 19 is in close contact with the exhaust pipe. The pressure limiting component presses down on the upper part of the polishing belt 19, so that the polishing belt 19 is kept taut. The third drive motor 13 installed on the outside of the upper frame 11 is used to drive the polishing belt roller 12, thereby realizing that the polishing belt roller 12 polishes the exhaust pipe with the polishing belt 19.

[0033] Specifically, the elastic element includes a guide rod 15 movably mounted at the end of the shaft of the polishing pressure limiting roller 14, and the two ends of the guide rod 15 are fixed to the bracket 1 and the upper frame 11 respectively. A spring 16 is sleeved on the upper part of the guide rod 15, and the upper end of the spring 16 is fixed to the inner surface of the upper frame 11.

[0034] In this embodiment, an elastic element consisting of a guide rod 15 and a spring 16 is used, and the shaft at the end of the polishing pressure limiting roller 14 is movably mounted outside the guide rod 15. This allows the spring 16, which is in a compressed state, to limit the pressure on the shaft at the end of the polishing pressure limiting roller 14. This allows the spring 16 to move the polishing pressure limiting roller 14 downwards, bringing the polishing belt 19 close to the surface of the exhaust pipe, which facilitates the polishing belt 19 polishing the exhaust pipe.

[0035] Specifically, the pressure limiting component includes a guide frame 17 welded to the upper part of the upper frame 11, a polishing belt pressure limiting roller 18 for pressure limiting is provided above the polishing belt 19, and the shafts at both ends of the polishing belt pressure limiting roller 18 are rotatably installed in the guide frame 17.

[0036] In this embodiment, a pressure limiting component consisting of a guide frame 17 and a polishing belt pressure limiting roller 18 is used. The shaft at the end of the polishing belt pressure limiting roller 18 is movably installed in the guide frame 17, which facilitates the polishing belt pressure limiting roller 18 to limit the pressure on the upper part of the polishing belt 19 under its own weight, thereby facilitating the tensioning of the polishing belt 19.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A straight pipe polishing machine for motorcycle exhaust pipes, characterized in that, include: The transmission component is used for exhaust pipe transmission. The transmission component includes a bracket (1). The bracket (1) has main pulleys (2) rotatably mounted at its four corners. A first drive motor (3) is mounted on the outside of the bracket (1). The output shaft of the first drive motor (3) is fixed to one of the main pulleys (2). Support rollers (5) arranged in a circular array are provided above the bracket (1). The two ends of several support rollers (5) are rotatably mounted on two belt strips (4). When the exhaust pipe is transmitted, it is placed above two adjacent support rollers (5). The belt strips (4) are set on two main pulleys (2). A secondary pulley (20) arranged in a linear distribution is rotatably mounted on the inside of the bracket (1). The secondary pulley (20) is located on the inner surface of the upper part of the belt strip (4). A rotating component, which is located inside a transmission component and is used to drive the support roller (5) to rotate; A polishing component, located above the transmission component, is used to polish the exhaust pipes placed above two adjacent support rollers (5).

2. The straight pipe polishing machine for motorcycle exhaust pipes according to claim 1, characterized in that: The rotating component includes a base bracket (6) welded to the inner side of the bracket (1), a side frame (7) welded above the base bracket (6), drive wheels (8) rotatably mounted at both ends of the side frame (7), a second drive motor (9) mounted on the outer side of the side frame (7), the output shaft of the second drive motor (9) being fixed to one of the drive wheels (8), and a drive belt (10) being sleeved on both drive wheels (8), and the drive belt (10) contacting the inner surface of the upper support roller (5).

3. A straight pipe polishing machine for motorcycle exhaust pipes according to claim 1, characterized in that: The polishing component includes an upper frame (11) fixed at the upper end of a bracket (1). Two polishing belt rollers (12) are rotatably mounted on the upper part of the upper frame (11). A third drive motor (13) is mounted on the outer side of the upper frame (11), and the output shaft of the third drive motor (13) is fixed to the polishing belt rollers (12). A polishing pressure limiting roller (14) is mounted on the inner side of the upper frame (11). An elastic element is installed between the polishing pressure limiting roller (14) and the upper frame (11). A polishing belt (19) for the exhaust pipe is provided outside the polishing belt rollers (12) and the polishing pressure limiting roller (14). A pressure limiting element for limiting the pressure of the polishing belt (19) is provided above the upper frame (11).

4. A straight pipe polishing machine for motorcycle exhaust pipes according to claim 3, characterized in that: The elastic element includes a guide rod (15) movably mounted at the end of the shaft of the polishing pressure limiting roller (14), and the two ends of the guide rod (15) are fixed to the bracket (1) and the upper frame (11) respectively. A spring (16) is sleeved on the upper part of the guide rod (15), and the upper end of the spring (16) is fixed on the inner surface of the upper frame (11).

5. A straight pipe polishing machine for motorcycle exhaust pipes according to claim 4, characterized in that: The pressure limiting component includes a guide frame (17) welded to the upper part of the upper frame (11), and a polishing belt pressure limiting roller (18) for pressure limiting is provided above the polishing belt (19), and the shafts at both ends of the polishing belt pressure limiting roller (18) are rotatably installed in the guide frame (17).