Piston ring polishing equipment
By designing a piston ring polishing device that includes external and internal polishing components, the problem of not being able to polish the inner and outer surfaces simultaneously in the existing technology has been solved, achieving efficient polishing and cleaning of piston rings and improving the practicality of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2026-04-14
AI Technical Summary
Existing polishing equipment cannot polish the inner and outer surfaces of piston rings simultaneously, requiring the use of different equipment, which leads to low efficiency.
A piston ring polishing device was designed, comprising an outer polishing component and an inner polishing component, capable of polishing piston rings from both the inner and outer sides respectively, and equipped with a cleaning function, using air pressure to control the positioning rod for positioning and cleaning, and integrating a suction device to collect debris.
It achieves efficient polishing and cleaning of the inner and outer surfaces of piston rings, improves polishing efficiency, simplifies the operation process, and enhances the practicality of the equipment.
Smart Images

Figure CN224115898U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of piston ring polishing technology, and in particular to a piston ring polishing device. Background Technology
[0002] A piston ring is a metal elastic ring with a large outward expansion deformation, which is fitted into an annular groove with a corresponding cross-section. Reciprocating and rotary piston rings rely on the pressure difference of gas or liquid to form a seal between the outer surface of the ring and the cylinder, as well as between the ring and one side of the ring groove. Therefore, the piston ring surface needs to be polished. Existing polishing equipment cannot polish both the outer and inner surfaces of the ring simultaneously, requiring different equipment, resulting in low efficiency and limitations. Therefore, a piston ring polishing device needs to be designed to solve this problem. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a piston ring polishing device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A piston ring polishing device includes a main body, a top plate fixedly installed at the top of the main body, and two sets of moving components arranged at the bottom of the top plate. Each moving component is connected to a connecting frame on its outer side, and a first rotating wheel and a second rotating wheel are rotatably connected to the inner side of each connecting frame. Each second rotating wheel is connected to a drive motor through the connecting frame, and a transmission belt is connected between the first rotating wheel and the second rotating wheel. An outer polishing component and an inner polishing component are respectively connected and installed in the transmission belt. An air pump and a suction device are fixedly installed on both sides of the main body, and a spring tube is connected between the air pump and the connecting frame. A cleaning box is slidably connected inside the main body, and a filter plate is arranged inside the cleaning box.
[0006] The outer polishing assembly is fixedly installed with two sets of first polishing rods, two sets of first cleaning rods, one set of first positioning rods and one set of first fixing rods on its inner side, and a first limiting frame is slidably connected to the outer side of the outer polishing assembly;
[0007] The inner polishing assembly is fixedly installed with two sets of second polishing rods, two sets of second cleaning rods, one set of second positioning rods, and one set of second fixing rods, and the outer side of the inner polishing assembly is slidably connected with a second limiting frame.
[0008] Preferably, the moving component consists of a motor and a lead screw, and the bottom of the lead screw is provided with a dustproof pad to prevent dust and extend the service life of the lead screw.
[0009] Preferably, both the first limiting frame and the second limiting frame are circular in design, and the first limiting frame and the second limiting frame are respectively provided with movable grooves that are adapted to the first polishing rod, the first cleaning rod, the first positioning rod, the first fixing rod, the second polishing rod, the second cleaning rod, the second positioning rod and the second fixing rod. This allows them to be moved and adjusted at will without affecting the polishing and cleaning work, thereby fixing the piston ring from both sides.
[0010] Preferably, the first polishing rod, the first cleaning rod, the first positioning rod, and the first fixing rod are all arranged in a circular array with the first limiting frame as the center, so as to clamp the piston ring from the outside. The polishing surface and the cleaning surface of the first polishing rod and the first cleaning rod are both set on the inner wall, and the positioning direction of the first positioning rod is inward, so as to perform polishing, cleaning and positioning work from the outside.
[0011] Preferably, the second polishing rod, the second cleaning rod, the second positioning rod, and the second fixing rod are all arranged in a circular array around the second limiting frame, thereby supporting the piston ring from the inside. The polishing and cleaning surfaces of the second polishing rod and the second cleaning rod are both located on the inner wall, and the positioning direction of the second positioning rod is outward, so that polishing, cleaning, and positioning are performed from the inside.
[0012] Preferably, the first and second limiting frames are connected to the outside of the first and second limiting frames by threaded bolts, and the first and second fixing rods are provided with fastening grooves that are adapted to the fastening bolts, so that the first and second limiting frames are fixed by the fastening bolts.
[0013] Preferably, both the first and second positioning rods have air chambers, and the air chambers are connected to the spring tube through the outer polishing component and the inner polishing component, respectively. Both the first and second positioning rods are slidably connected to positioning frames, and the timing of the positioning work of the first and second positioning rods is controlled by air pressure.
[0014] The beneficial effects of this utility model are:
[0015] This utility model is equipped with an external polishing component and an internal polishing component, which can polish the piston ring from the inside and the outside respectively. While polishing, the external and internal polishing components can also clean the piston ring, remove attached debris, and collect it in a cleaning box through a suction device for easy cleaning. It can also fix the piston ring from multiple angles through a first limiting frame, a second limiting frame, a first fixing rod, and a second positioning rod, which can play a stabilizing role and has practicality. Attached Figure Description
[0016] Figure 1 This is a 3D structural schematic diagram of a piston ring polishing device proposed in this utility model;
[0017] Figure 2 This is a front structural diagram of a piston ring polishing device proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the outer polishing component in a piston ring polishing device proposed in this utility model;
[0019] Figure 4 This is an internal structural diagram of the internal polishing component in a piston ring polishing device proposed in this utility model.
[0020] In the diagram: 1. Main body; 2. Top plate; 3. Moving component; 4. Connecting frame; 5. First rotating wheel; 6. Second rotating wheel; 7. Drive motor; 8. Transmission belt; 9. Outer polishing component; 10. Inner polishing component; 11. Air pump; 12. Bourdon tube; 13. Cleaning box; 14. Pressure suction device; 15. Filter plate; 16. First polishing rod; 17. First cleaning rod; 18. First positioning rod; 19. First fixing rod; 20. First limiting frame; 21. Second polishing rod; 22. Second cleaning rod; 23. Second positioning rod; 24. Second fixing rod; 25. Second limiting frame. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Example: Refer to Figure 1-4A piston ring polishing device includes a main body 1. A top plate 2 is fixedly installed at the top of the main body 1, and two sets of moving components 3 are provided at the bottom of the top plate 2. The moving components 3 are composed of a motor and a lead screw, and the bottom of the lead screw is provided with a dustproof pad to prevent dust and extend the service life of the lead screw. A connecting frame 4 is connected to the outside of the moving components 3, and a first rotating wheel 5 and a second rotating wheel 6 are rotatably connected to the inside of the connecting frame 4. The second rotating wheel 6 is connected to a drive motor 7 through the connecting frame 4, and a transmission belt 8 is connected between the first rotating wheel 5 and the second rotating wheel 6. An outer polishing component 9 and an inner polishing component 10 are respectively connected and installed in the transmission belt 8. An air pump 11 and a suction device 14 are fixedly installed on both sides of the main body 1, and a spring tube 12 is connected between the air pump 11 and the connecting frame 4. A cleaning box 13 is slidably connected inside the body 1, and a filter plate 15 is installed inside the cleaning box 13. Two sets of first polishing rods 16, two sets of first cleaning rods 17, a set of first positioning rods 18, and a set of first fixing rods 19 are fixedly installed on the inner side of the outer polishing assembly 9. A first limiting frame 20 is slidably connected to the outer side of the outer polishing assembly 9. The first polishing rods 16, first cleaning rods 17, first positioning rods 18, and first fixing rods 19 are all arranged in a circular array with the first limiting frame 20 as the center, thereby clamping the piston rings from the outside. The polishing surface and cleaning surface of the first polishing rods 16 and first cleaning rods 17 are both located on the inner wall. The positioning direction of the first positioning rod 18 is inward, so that polishing, cleaning, and positioning work are performed from the outside. The inner polishing assembly 10 is fixedly installed on the inner side. There are two sets of second polishing rods 21, two sets of second cleaning rods 22, one set of second positioning rods 23, and one set of second fixing rods 24. A second limiting frame 25 is slidably connected to the outer side of the inner polishing assembly 10. Air chambers are opened inside both the first positioning rod 18 and the second positioning rod 23, and these air chambers communicate with the spring tube 12 through the outer polishing assembly 9 and the inner polishing assembly 10, respectively. Positioning frames are slidably connected inside both the first positioning rod 18 and the second positioning rod 23. The timing of the positioning work of the first positioning rod 18 and the second positioning rod 23 is controlled by air pressure. Both the first limiting frame 20 and the second limiting frame 25 are circular in design, and the first limiting frame 20 and the second limiting frame 25 are respectively provided with openings for connection to the first polishing rod 16, the first cleaning rod 17, the first positioning rod 18, and the first fixing rod 24. The movable grooves of the fixed rod 19, the second polishing rod 21, the second cleaning rod 22, the second positioning rod 23, and the second fixed rod 24 allow for free movement and position adjustment without affecting polishing and cleaning operations, thereby fixing the piston ring from both sides. The second polishing rod 21, the second cleaning rod 22, the second positioning rod 23, and the second fixed rod 24 are all arranged in a circular array with the second limiting frame 25 as the center, thus supporting the piston ring from the inside. The polishing and cleaning surfaces of the second polishing rod 21 and the second cleaning rod 22 are both located on the inner wall, and the positioning direction of the second positioning rod 23 faces outward, performing polishing, cleaning, and positioning work from the inside. The outer sides of the first limiting frame 20 and the second limiting frame 25 are connected by threaded fastening bolts.Furthermore, the outer sides of the first fixing rod 19 and the second fixing rod 24 are provided with fastening grooves adapted to the fastening bolts, and the first limiting frame 20 and the second limiting frame 25 are fixed by the fastening bolts.
[0023] Working principle: When using, the piston rings need to be placed on the outside of the inner polishing component 10 in sequence. The inner polishing component 10 supports the piston rings from the inside. Then, the moving component 3 is opened to control the movement of the outer polishing component 9 and the inner polishing component 10, so that the inner polishing component 10 enters the outer polishing component 9 and the inner wall of the inner polishing component 10 is in contact with the outside of the piston ring. Then, the first limiting bracket 20 and the second limiting bracket 25 are moved so that they are in contact with the two sides of the piston ring respectively. Then, they are fixed by fastening bolts. After completion, the polishing work can begin.
[0024] When it is necessary to polish the outer wall of the piston ring, the air pump 11 injects gas into the air chamber of the second positioning rod 23 to extend the positioning frame and position the piston ring from the inside. Then, the drive motor 7 is turned on to control the rotation of the outer polishing assembly 9. The first polishing rod 16 continuously contacts the outer wall of the piston ring for polishing. At the same time, the first cleaning rod 17 also continuously contacts the outer wall of the piston ring to remove the debris attached to the outer wall. The debris is sucked into the cleaning box 13 by the suction device 14 and blocked by the filter plate 15.
[0025] When the inner wall of the piston ring needs to be polished, the air pump 11 injects gas into the air chamber of the first positioning rod 18 to extend the positioning frame and position the piston ring from the outside. Then, the drive motor 7 is turned on to control the inner polishing assembly 10 to rotate. The second polishing rod 21 continuously contacts the inner wall of the piston ring for polishing. At the same time, the second cleaning rod 22 also continuously contacts the inner wall of the piston ring to remove the debris attached to the inner wall. The debris is sucked into the cleaning box 13 by the suction device 14 and blocked by the filter plate 15.
[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A piston ring polishing apparatus comprising a main body (1), characterized in that, The top of the main body (1) is fixedly provided with a top plate (2), and the bottom of the top plate (2) is provided with two groups of moving assemblies (3), the outer side of each moving assembly (3) is connected with a connecting frame (4), and the inner side of each connecting frame (4) is rotatably connected with a first rotating wheel (5) and a second rotating wheel (6), the second rotating wheel (6) is connected with a driving motor (7) through the connecting frame (4), and the first rotating wheel (5) and the second rotating wheel (6) are connected with a transmission belt (8), the transmission belt (8) is respectively connected with an outer polishing assembly (9) and an inner polishing assembly (10), the two sides of the main body (1) are fixedly provided with an air pump (11) and a suction device (14), the air pump (11) and the connecting frame (4) are connected with a spring pipe (12), and the main body (1) is slidably connected with a cleaning box (13), and the cleaning box (13) is provided with a filter plate (15). The inner side of the outer polishing assembly (9) is fixedly provided with two groups of first polishing rods (16), two groups of first cleaning rods (17), a group of first positioning rods (18) and a group of first fixing rods (19), and the outer side of the outer polishing assembly (9) is slidably connected with a first limiting frame (20). The inner side of the inner polishing assembly (10) is fixedly provided with two groups of second polishing rods (21), two groups of second cleaning rods (22), a group of second positioning rods (23) and a group of second fixing rods (24), and the outer side of the inner polishing assembly (10) is slidably connected with a second limiting frame (25).
2. A piston ring polishing apparatus according to claim 1, wherein The moving assembly (3) is composed of a motor and a lead screw, and the bottom of the lead screw is provided with a dustproof pad.
3. A piston ring polishing apparatus according to claim 1, wherein The first limiting frame (20) and the second limiting frame (25) are circular in structure, and the first limiting frame (20) and the second limiting frame (25) are respectively provided with moving grooves matched with the first polishing rod (16), the first cleaning rod (17), the first positioning rod (18), the first fixing rod (19), the second polishing rod (21), the second cleaning rod (22), the second positioning rod (23) and the second fixing rod (24).
4. A piston ring polishing apparatus according to claim 1, wherein The first polishing rod (16), the first cleaning rod (17), the first positioning rod (18) and the first fixing rod (19) are arranged in a ring array around the first limiting frame (20), the polishing surface and the cleaning surface of the first polishing rod (16) and the first cleaning rod (17) are arranged on the inner wall, and the positioning direction of the first positioning rod (18) is inward.
5. A piston ring polishing apparatus according to claim 1, wherein The second polishing rod (21), the second cleaning rod (22), the second positioning rod (23) and the second fixing rod (24) are arranged in a ring array around the second limiting frame (25), the polishing surface and the cleaning surface of the second polishing rod (21) and the second cleaning rod (22) are arranged on the inner wall, and the positioning direction of the second positioning rod (23) is outward.
6. A piston ring polishing apparatus according to claim 1, wherein The outer side of the first limiting frame (20) and the second limiting frame (25) is connected with a fastening bolt through threads, and the outer side of the first fixing rod (19) and the second fixing rod (24) is provided with a fastening groove matched with the fastening bolt.
7. A piston ring polishing apparatus according to claim 1 wherein, The first positioning rod (18) and the second positioning rod (23) are both provided with air cavities, and the air cavities are communicated with the spring tube (12) through the outer polishing assembly (9) and the inner polishing assembly (10) respectively, and the first positioning rod (18) and the second positioning rod (23) are both slidably connected with positioning frames.