Piston ring grinder
By designing the tightening mechanism of the piston ring grinding machine, the problem of piston rings getting stuck due to thermal expansion during grinding was solved, and the piston rings were able to be freely disassembled.
Patent Information
- Application Number
- CN202522100909.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-29
AI Technical Summary
The piston rings expanded due to heat during the grinding process and became stuck on the surface of the round rod, affecting disassembly.
A piston ring grinding machine was designed, comprising a fixed chassis, a support frame, a grinding wheel body, an electric push rod, and a tensioning mechanism. The tensioning mechanism supports the piston rings, enabling free disassembly.
This design prevents the piston rings from jamming during the grinding process, facilitating disassembly and avoiding jamming issues caused by thermal expansion.
Smart Images

Figure CN224674543U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of piston rings, specifically a piston ring grinding machine. Background Technology
[0002] Piston rings are metal rings used to fit inside the grooves of the piston. There are two types of piston rings: compression rings and oil rings. Compression rings are used to seal the combustible mixture in the combustion chamber, while oil rings are used to scrape off excess oil from the cylinder. Before the piston rings are ground by the grinding wheel, they are fitted onto the surface of the round rod. However, the piston rings expand due to heat during the grinding process, causing them to get stuck on the surface of the round rod, which in turn affects the disassembly of the piston rings. Utility Model Content
[0003] To overcome the shortcomings of the existing technology, before the piston ring is ground by the grinding wheel, the piston ring is fitted onto the surface of the round rod. However, the piston ring will expand due to heat during the grinding process, causing the piston ring to get stuck on the surface of the round rod, which will affect the disassembly of the piston ring. This utility model proposes a piston ring grinding wheel machine.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a piston ring grinding machine, including a fixed chassis, a support frame fixedly connected to the top of the fixed chassis, a grinding machine body fixedly connected to the top of the support frame, a second electric push rod fixedly connected to the inner wall of the fixed chassis, a connecting plate fixedly connected to the telescopic end of the second electric push rod, and a tightening mechanism provided on one side of the connecting plate. The tensioning mechanism includes a fixed rotating seat, which is fixedly connected to one side of a connecting plate. A support tube is rotatably connected to one side of the fixed rotating seat. A first electric push rod is fixedly connected to the inner wall of the fixed rotating seat. An adjusting push rod is rotatably connected to the telescopic end of the first electric push rod. A motor is fixedly connected to the inner wall of the fixed rotating seat. A gear is fixedly connected to the output end of the motor. A gear ring is fixedly connected to one side of the support tube. The gear ring meshes with the gear. A support plate is slidably connected to the inner wall of the support tube. A limit ring is fixedly connected to the surface of the support plate. A spring is provided on the surface of the support plate.
[0005] Preferably, a collection box is slidably connected to the inner wall of the fixed chassis, and the bottom of the collection box is magnetically attracted to the inner wall of the fixed chassis.
[0006] Preferably, the top of the fixed chassis is fixedly connected with a protective pad, and the number of the protective pads is two.
[0007] Preferably, a support plate is fixedly connected to the top of the fixed chassis, and a sliding rod is fixedly connected to one side of the connecting plate, with the surface of the sliding rod slidably connected to the inner wall of the support plate.
[0008] Preferably, a support ring is fixedly connected to one side of the support tube, and the surface of the support ring is rotatably connected to the inner wall of the first electric push rod.
[0009] Preferably, a branch pipe is fixedly connected to the surface of the first electric push rod, and the surface of the branch pipe is slidably connected to the inner wall of the support pipe.
[0010] Preferably, the telescopic end of the first electric push rod is fixedly connected to a connecting plate, the connecting plate is rotatably connected to the adjusting push rod, and a limiting platform is fixedly connected to the top of the fixed base.
[0011] The advantages of this utility model are: This invention uses a tensioning mechanism to freely support the piston ring, thus facilitating its disassembly. It solves the problem that before the piston ring is ground by the grinding wheel, it is fitted onto the surface of the round rod, but the piston ring expands due to heat during the grinding process, causing it to get stuck on the surface of the round rod and thus affecting the disassembly of the piston ring. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A; Figure 4 This is a schematic diagram of the support tube in this utility model; Figure 5 This is a schematic diagram of the support plate in this utility model; Figure 6 This is a schematic diagram of the adjusting push rod in this utility model.
[0014] In the diagram: 1. Fixed chassis; 2. Support frame; 3. Grinding wheel body; 4. Support plate; 5. Sliding rod; 6. Connecting plate; 7. Protective pad; 8. Tensioning mechanism; 801. Fixed rotating seat; 802. Support pipe; 803. Support plate; 804. Spring; 805. Limiting ring; 806. Adjusting push rod; 807. First electric push rod; 808. Motor; 809. Gear; 810. Gear ring; 9. Second electric push rod; 10. Limiting platform; 11. Collection box; 12. Support ring; 13. Support pipe; 14. Connecting plate. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0016] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail. This application discloses a piston ring grinding machine. (Refer to...) Figures 1-6 A piston ring grinding machine includes a fixed chassis 1, a support frame 2 fixedly connected to the top of the fixed chassis 1, a grinding machine body 3 fixedly connected to the top of the support frame 2, a second electric push rod 9 fixedly connected to the inner wall of the fixed chassis 1, a connecting plate 6 fixedly connected to the telescopic end of the second electric push rod 9, a tensioning mechanism 8 provided on one side of the connecting plate 6, the tensioning mechanism 8 including a fixed rotating seat 801, the fixed rotating seat 801 fixedly connected to one side of the connecting plate 6, a support tube 802 rotatably connected to one side of the fixed rotating seat 801, a first electric push rod 807 fixedly connected to the inner wall of the fixed rotating seat 801, an adjusting push rod 806 rotatably connected to the telescopic end of the first electric push rod 807, a motor 808 fixedly connected to the inner wall of the fixed rotating seat 801, a gear 809 fixedly connected to the output end of the motor 808, and the support tube 806... A toothed ring 810 is fixedly connected to one side of the support tube 802. The toothed ring 810 meshes with the gear 809. A support plate 803 is slidably connected to the inner wall of the support tube 802. A limit ring 805 is fixedly connected to the surface of the support plate 803. A spring 804 is provided on the surface of the support plate 803. When the piston ring needs to be ground, the piston ring can be placed on the surface of the support plate 803. Then, the first electric push rod 807 is controlled to push the adjusting push rod 806 to squeeze the support plate 803 upward, so that the support plate 803 can hold the piston ring. The second electric push rod 9 pushes the piston ring to the bottom of the grinding wheel body 3 for grinding. When the piston ring surface heats up during the grinding process, the first electric push rod 807 can be controlled to pull the adjusting push rod 806 to the left to release the support plate 803 so that the user can take out the piston ring.
[0017] Reference Figure 1 A collection box 11 is slidably connected to the inner wall of the fixed chassis 1. The bottom of the collection box 11 is magnetically attracted to the inner wall of the fixed chassis 1. When the grinding wheel body 3 is grinding the piston ring, the collection box 11 can be used to collect the debris from the grinding of the piston ring, thus preventing the debris from being thrown out. Reference Figure 1 The top of the fixed chassis 1 is fixedly connected with two protective pads 7. When the second electric push rod 9 drives the connecting plate 6 to be stored, the protective pads 7 can limit the position of the connecting plate 6 to avoid the connecting plate 6 from colliding with the fixed chassis 1. Reference Figure 1 A support plate 4 is fixedly connected to the top of the fixed chassis 1, and a sliding rod 5 is fixedly connected to one side of the connecting plate 6. The surface of the sliding rod 5 is slidably connected to the inner wall of the support plate 4. The sliding rod 5 installed on one side of the connecting plate 6 can increase the movement stability of the connecting plate 6 by sliding on the surface of the support plate 4. Reference Figure 2 A support ring 12 is fixedly connected to one side of the support tube 802. The surface of the support ring 12 is rotatably connected to the inner wall of the first electric push rod 807. The support ring 12 installed on one side of the support tube 802 can support the support tube 802 to rotate stably on one side of the fixed rotating seat 801. Reference Figure 3 A branch pipe 13 is fixedly connected to the surface of the first electric push rod 807. The surface of the branch pipe 13 is slidably connected to the inner wall of the support pipe 802. The branch pipe 13 installed on the surface of the first electric push rod 807 can support the first electric push rod 807 to slide within the support plate 803. Reference Figure 3 The telescopic end of the first electric push rod 807 is fixedly connected to a connecting plate 14, which is rotatably connected to the adjusting push rod 806. The top of the fixed base 1 is fixedly connected to a limiting platform 10. The connecting plate 14 installed at the telescopic end of the first electric push rod 807 can limit the adjusting push rod 806, so that the first electric push rod 807 can drive the adjusting push rod 806 to slide stably.
[0018] Working principle: Before grinding the piston ring, the position needs to be marked on the surface of the support plate 803. Then, the piston ring is placed on the surface of the support plate 803. After the piston ring is moved to the marked position, the first electric push rod 807 is controlled to push the adjusting push rod 806 to squeeze the support plate 803 upward, so that the support plate 803 locks the piston ring. Then, the grinding wheel body 3 is controlled to run. Subsequently, the second electric push rod 9 pushes the piston ring to the bottom of the grinding wheel body 3 for grinding. During the grinding process, the motor 808 drives the support tube 802 to rotate through the gear 809, so that the grinding wheel body 3 can grind the surface of the piston ring evenly. After the grinding process, the surface of the piston ring will be hot. The first electric push rod 807 can be controlled to pull the adjusting push rod 806 to the left to release the support plate 803. The user can then remove the piston ring to avoid the piston ring getting stuck.
[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A piston ring grinding machine, comprising a fixed chassis (1), characterized in that: The top of the fixed chassis (1) is fixedly connected to a support frame (2), the top of the support frame (2) is fixedly connected to a grinding wheel body (3), the inner wall of the fixed chassis (1) is fixedly connected to a second electric push rod (9), the telescopic end of the second electric push rod (9) is fixedly connected to a connecting plate (6), and a tensioning mechanism (8) is provided on one side of the connecting plate (6). The tensioning mechanism (8) includes a fixed rotating seat (801), which is fixedly connected to one side of the connecting plate (6). A support tube (802) is rotatably connected to one side of the fixed rotating seat (801). A first electric push rod (807) is fixedly connected to the inner wall of the fixed rotating seat (801). An adjusting push rod (806) is rotatably connected to the telescopic end of the first electric push rod (807). A motor (808) is fixedly connected to the inner wall of the fixed rotating seat (801). A gear (809) is fixedly connected to the output end of the motor (808). A toothed ring (810) is fixedly connected to one side of the support tube (802). The toothed ring (810) meshes with the gear (809). A support plate (803) is slidably connected to the inner wall of the support tube (802). A limit ring (805) is fixedly connected to the surface of the support plate (803). A spring (804) is provided on the surface of the support plate (803).
2. The piston ring grinding machine according to claim 1, characterized in that: A collection box (11) is slidably connected to the inner wall of the fixed chassis (1), and the bottom of the collection box (11) is magnetically attracted to the inner wall of the fixed chassis (1).
3. A piston ring grinding machine according to claim 1, characterized in that: The top of the fixed chassis (1) is fixedly connected with a protective pad (7), and there are two protective pads (7).
4. A piston ring grinding machine according to claim 1, characterized in that: The top of the fixed chassis (1) is fixedly connected to a support plate (4), and a sliding rod (5) is fixedly connected to one side of the connecting plate (6). The surface of the sliding rod (5) is slidably connected to the inner wall of the support plate (4).
5. A piston ring grinding machine according to claim 1, characterized in that: A support ring (12) is fixedly connected to one side of the support tube (802), and the surface of the support ring (12) is rotatably connected to the inner wall of the first electric push rod (807).
6. A piston ring grinding machine according to claim 1, characterized in that: A branch pipe (13) is fixedly connected to the surface of the first electric push rod (807), and the surface of the branch pipe (13) is slidably connected to the inner wall of the support pipe (802).
7. A piston ring grinding machine according to claim 1, characterized in that: The telescopic end of the first electric push rod (807) is fixedly connected to a connecting plate (14), the connecting plate (14) is rotatably connected to the adjusting push rod (806), and the top of the fixed base (1) is fixedly connected to a limiting platform (10).