Cylinder piston
By using fluoroelastic cushioning, buffer grooves and cooling channels on the cylinder piston, vibration and noise problems during piston movement are solved, engine parts wear and noise pollution are reduced, and thermal efficiency and sealing are improved.
Patent Information
- Application Number
- CN202420018706.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-04
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-01-04
AI Technical Summary
The vibration and noise generated by existing pistons when reciprocating in the engine cause the wear of engine components to intensify, and spread to the external environment through the engine housing and vehicle structure, causing noise pollution, especially when the vibration is more significant when the load changes greatly. , affects riding comfort and environment.
A cylinder piston is designed, using external and internal cushioning pads of fluoroelastic material, combined with multiple main rod cushioning grooves and internal cooling channels, and using integrated casting process and heat dissipation fins to support metal plates and fluoroelastic sealing rings to reduce Vibration, noise and thermal management.
It effectively reduces vibration and noise during piston movement, extends the service life of the sealing ring, improves thermal efficiency and heat dissipation efficiency, and reduces engine component wear and noise pollution.
Smart Images
Figure CN222315241U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protective equipment, and more specifically to a cylinder piston. Background Art
[0002] In current engine designs, the reciprocating motion of the piston is a critical part of engine operation, but this process also comes with potential problems, namely the possibility of generating additional vibration and noise. These vibrations and noises from existing pistons not only lead to increased wear between engine components, but also spread through the engine housing and vehicle structure to the external environment, forming noise pollution.
[0003] Especially when running at high speed or with large load changes, the vibration generated by the piston and connecting rod mechanism may be more significant, which not only affects the ride comfort but also interferes with the environment. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a cylinder piston to solve the problem that the vibration and noise of the existing piston in the above-mentioned background technology not only lead to increased wear between engine components, but also spread to the external environment through the engine housing and the vehicle structure, causing noise pollution.
[0005] The utility model provides the following technical solution: it includes a piston rod body, an external buffer plate is fixedly installed on the top of the outer surface of the piston rod body, a first external buffer pad is fixedly installed on the bottom end of the external buffer plate, the first external buffer pad is annular in shape, the inner wall of the first external buffer pad is fixedly connected to the outside of the piston rod body, an internal buffer pad is fixedly installed on the bottom end of the piston rod body, the internal buffer pad is annular in shape, the first external buffer pad and the internal buffer pad are both made of fluororubber, a plurality of main rod buffer grooves are evenly opened on the outer surface of the piston rod body, and the edges of the main rod buffer grooves are all rounded. During use, when the piston rod body performs piston motion reciprocating at high speed inside the cylinder, the first external buffer pad on the external buffer plate and the internal buffer pad at the bottom end of the piston rod body will continue to provide shock absorption for the piston rod body. When the piston rod body drives the first external buffer pad and the internal buffer pad to move at high speed, the first external buffer pad will contact the external top end of the cylinder and provide shock absorption, while the internal buffer pad will contact the internal bottom end of the cylinder and provide shock absorption. At the same time, when the piston rod body moves in the cylinder, the friction between the outer surface and the cylinder wall is the main source of vibration. The multiple main rod buffer grooves designed and opened on the piston rod body can directly reduce this friction and effectively disperse the vibration energy. In actual use, these vibrations and noises occurring in the existing pistons can be effectively solved, which will not only cause increased wear between engine components, but will also be transmitted to the external environment through the engine housing and vehicle structure, causing noise pollution.
[0006] Furthermore, an internal cooling channel is provided inside the piston rod body, the bottom end of the internal cooling channel extends to the bottom end of the piston rod body, and a plurality of heat dissipation fins are fixedly installed on the inner wall of the internal cooling channel, and the heat dissipation fins are all centrally symmetrically distributed along the axis of the piston rod body. When in use, the internal cooling channel is provided inside the piston rod body, which is an effective method for improving thermal efficiency and managing piston temperature. The internal cooling channel is milled in a straight line inside the piston rod body, allowing cooling media such as oil or water to pass through. At the same time, in order to improve the heat exchange efficiency, a plurality of heat dissipation fins can be installed on the inner surface of the internal cooling channel to improve the heat dissipation and heat exchange efficiency.
[0007] Furthermore, an internal piston head is fixedly mounted on the bottom end of the outer surface of the piston rod body, and the internal piston head and the piston rod body are manufactured using an integrated casting process. When in use, the spherical internal piston head can reduce the vibration of the piston rod body during high-speed piston movement, and the internal piston head can reduce the impact force on the cylinder wall.
[0008] Furthermore, a supporting metal plate is fixedly mounted on the top of the outer surface of the piston rod body, and a piston sealing ring is fixedly mounted on the outer surface of the supporting metal plate, and the material of the piston sealing ring is fluororubber. When in use, the supporting metal plate can provide support for the piston sealing ring, so that the piston sealing ring can maintain its shape and sealing performance during long-term high-speed piston movement, and prevent it from losing its sealing function due to wear before reaching the end of its service life.
[0009] Technical effects and advantages of the utility model:
[0010] 1. The utility model is provided with a piston rod body, an external buffer plate, a first external buffer pad, an internal buffer pad, and a main rod buffer groove. In actual use, the vibration and noise of the existing piston can effectively solve the problem that not only the wear between engine parts is aggravated, but also the vibration and noise are transmitted to the external environment through the engine housing and the vehicle structure, causing noise pollution.
[0011] 2. The utility model is provided with an internal cooling channel and heat dissipation fins. When in use, the internal cooling channel is opened inside the piston rod body, which is an effective method to improve thermal efficiency and manage piston temperature. The internal cooling channel is milled in a straight line inside the piston rod body, allowing cooling media such as oil or water to pass through. At the same time, in order to improve the heat exchange efficiency, a plurality of heat dissipation fins can be installed on the inner surface of the internal cooling channel to improve the heat dissipation and heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic front view cross-sectional diagram of the structure of the present utility model.
[0013] Figure 2 It is a schematic front view of the structure of the present utility model.
[0014] Figure 3 It is a schematic top view of part of the structure of the utility model.
[0015] Figure 4 It is a bottom view schematic diagram of a partial structure of the utility model.
[0016] The figures are marked as follows: 100, piston rod body; 110, external buffer plate; 111, first external buffer pad; 112, internal buffer pad; 113, main rod buffer groove; 114, internal cooling channel; 115, heat dissipation fins; 116, internal piston head; 117, supporting metal plate; 118, piston sealing ring. DETAILED DESCRIPTION
[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the cylinder piston involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. Example
[0018] Reference Figure 1 and Figure 2 The utility model provides a cylinder piston, including a piston rod body 100, an external buffer plate 110 is fixedly installed on the top of the outer surface of the piston rod body 100, a first external buffer pad 111 is fixedly installed on the bottom end of the external buffer plate 110, the first external buffer pad 111 is annular in shape, the inner wall of the first external buffer pad 111 is fixedly connected to the outside of the piston rod body 100, an internal buffer pad 112 is fixedly installed on the bottom end of the piston rod body 100, the internal buffer pad 112 is annular in shape, the first external buffer pad 111 and the internal buffer pad 112 are both made of fluororubber, a plurality of main rod buffer grooves 113 are evenly opened on the outer surface of the piston rod body 100, and the edges of the main rod buffer grooves 113 are all rounded.
[0019] An internal cooling channel 114 is opened inside the piston rod body 100, and the bottom end of the internal cooling channel 114 extends to the bottom end of the piston rod body 100. A plurality of heat dissipation fins 115 are fixedly installed on the inner wall of the internal cooling channel 114, and the heat dissipation fins 115 are all centrally symmetrically distributed along the axis of the piston rod body 100.
[0020] An internal piston head 116 is fixedly mounted on the bottom end of the outer surface of the piston rod body 100 , and the internal piston head 116 and the piston rod body 100 are manufactured using an integrated casting process.
[0021] Working principle: During use, when the piston rod body 100 performs piston motion reciprocatingly at high speed inside the cylinder, the first external buffer pad 111 on the external buffer plate 110 and the internal buffer pad 112 at the bottom end of the piston rod body 100 will continue to provide shock absorption for the piston rod body 100. When the piston rod body 100 drives the first external buffer pad 111 and the internal buffer pad 112 to move at high speed, the first external buffer pad 111 will contact the external top end of the cylinder and provide shock absorption, while the internal buffer pad 112 will contact the internal bottom end of the cylinder and provide shock absorption. At the same time, when the piston rod body 100 moves in the cylinder, the friction between the outer surface and the cylinder wall is the main source of vibration. The multiple main rod buffer grooves 113 designed and opened on the piston rod body 100 can directly reduce this friction and effectively disperse the vibration energy. Example
[0022] Reference Figure 1 The difference between the second embodiment and the first embodiment is that a supporting metal plate 117 is fixedly installed at the top of the outer surface of the piston rod body 100, and a piston sealing ring 118 is fixedly installed on the outer surface of the supporting metal plate 117. The material of the piston sealing ring 118 is fluororubber.
[0023] Working principle: When in use, the supporting metal plate can provide support for the piston sealing ring, so that the piston sealing ring can maintain its shape and sealing performance during long-term high-speed piston movement, preventing it from losing its sealing function due to wear before reaching its service life.
[0024] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.
Claims
1. A cylinder piston, comprising a piston rod body (100), characterized in that: An external buffer plate (110) is fixedly mounted on the top of the outer surface of the piston rod body (100), and a first external buffer pad (111) is fixedly mounted on the bottom end of the external buffer plate (110). The first external buffer pad (111) is annular in shape, and the inner wall of the first external buffer pad (111) is fixedly connected to the outside of the piston rod body (100). An internal buffer pad (112) is fixedly mounted on the bottom end of the piston rod body (100). The internal buffer pad (112) is annular in shape. The first external buffer pad (111) and the internal buffer pad (112) are both made of fluororubber. A plurality of main rod buffer grooves (113) are evenly arranged on the outer surface of the piston rod body (100), and the edges of the main rod buffer grooves (113) are all subjected to rounded transition treatment.
2. A cylinder piston according to claim 1, characterized in that: An internal cooling channel (114) is provided inside the piston rod body (100), the bottom end of the internal cooling channel (114) extends to the bottom end of the piston rod body (100), a plurality of heat dissipation fins (115) are fixedly mounted on the inner wall of the internal cooling channel (114), and the heat dissipation fins (115) are all centrally symmetrically distributed along the axis of the piston rod body (100).
3. A cylinder piston according to claim 1, characterized in that: An internal piston head (116) is fixedly mounted on the bottom end of the outer surface of the piston rod body (100); the internal piston head (116) and the piston rod body (100) are manufactured using an integrated casting process.
4. A cylinder piston according to claim 1, characterized in that: A supporting metal plate (117) is fixedly mounted on the top end of the outer surface of the piston rod body (100), and a piston sealing ring (118) is fixedly mounted on the outer surface of the supporting metal plate (117). The material of the piston sealing ring (118) is fluororubber.