Skirt-reinforced piston
By designing reinforcement blocks with reinforcement frames and annular distribution on the piston skirt, the serious wear problem of piston skirt is solved, and the effect of reducing wear and extending service life is achieved.
Patent Information
- Application Number
- CN202421601187.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The existing piston skirts are prone to severe wear and tear during operation in the cylinder, which affects the service life.
A skirt reinforced piston is designed, using reinforcement frames and annularly distributed reinforcement blocks. By contacting the reinforcement frames with the inner wall of the cylinder, the piston skirt and the inner wall of the cylinder are reduced directly, thereby reducing wear. Meanwhile, the hollow groove and the second reinforcement block distributed in annular shape are used to reduce weight and improve compressive resistance.
It effectively reduces wear on the piston skirt, extends service life, and improves the piston's compressive and wear resistance, reducing vibration and noise.
Smart Images

Figure CN222863507U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of piston skirt reinforcement, in particular to a skirt-reinforced piston. Background Art
[0002] The piston is an important component in an internal combustion engine. It is usually a cylindrical metal part that reciprocates in the cylinder. The piston plays an important role in the internal combustion engine, such as sealing the cylinder, transmitting pressure, and converting heat energy into mechanical energy. The piston plays a vital role in the internal combustion engine and directly affects the performance and efficiency of the engine. The skirt-reinforced piston is a special piston design. Its main feature is that the skirt of the piston is reinforced. The skirt is an important part of the piston. It is responsible for guiding the piston in the process of reciprocating up and down in the cylinder, controlling the swing of the piston head, and bearing the side pressure.
[0003] The Chinese patent "A high-strength and lightweight piston" authorization announcement number "CN217152130U" achieves the strength and lightness of the piston through a skirt groove, a reinforcement block, a reinforcement ring, a pin ring, a first reinforcement layer and a second reinforcement layer, thereby extending the service life of the piston and increasing the practicality of the device.
[0004] The above-mentioned piston skirt has the same diameter as the cone and is only reinforced in the skirt groove. When the piston works in the cylinder, it is easy to cause serious wear of the piston skirt as a whole, thereby affecting the service life of the piston skirt.
[0005] Therefore, a skirt-reinforced piston is proposed to solve the above problems. Utility Model Content
[0006] The utility model aims to provide a skirt-reinforced piston in order to solve the above problems, thereby improving the problem that the piston skirt has the same diameter as the cone and is only reinforced in the skirt groove, resulting in severe overall wear of the piston skirt.
[0007] The utility model achieves the above-mentioned purpose through the following technical solutions: a skirt-reinforced piston, comprising: a piston head, the bottom end of which is fixedly connected to a piston skirt; a reinforcing mechanism, which is used to enhance the overall wear resistance of the piston skirt and is arranged on the surface of the piston skirt; wherein the reinforcing mechanism comprises two reinforcing frames fixedly connected to the surface of the piston skirt, and the inner wall of the reinforcing frame is fixedly connected to a first reinforcing block distributed in an annular manner. By using the reinforcing frame, the reinforcing frame is directly in contact with the inner wall of the cylinder, thereby avoiding direct contact between the entire piston skirt and the inner wall of the cylinder, reducing the overall wear of the piston skirt, and ensuring the service life of the piston skirt; by using the first reinforcing block, the surface of the reinforcing frame is reinforced, the compression and wear resistance of the reinforcing frame is ensured, and the service life of the reinforcing frame is ensured.
[0008] Preferably, a hollow groove is provided inside the piston skirt, and the inner wall of the hollow groove is fixedly connected with a second reinforcing block distributed in an annular manner. The hollow groove is used to reduce the weight of the piston skirt, ensure the lightweight of the piston, and further reduce the inertial force of the piston during movement, reduce vibration and noise, and the second reinforcing block distributed in an annular manner is used to strengthen the piston skirt, ensure the compression resistance of the piston skirt, and prevent the piston skirt from deformation.
[0009] Preferably, the inner wall of the piston skirt is fixedly connected with third reinforcement blocks distributed in an annular manner.
[0010] Preferably, the lower end of the surface of the third reinforcement block forms an angle with the horizontal plane. The tilted third reinforcement block is used to strengthen the overall structure of the piston skirt, improve the stability and bearing capacity of the piston skirt structure, and thus ensure the service life of the piston skirt.
[0011] Preferably, the reinforcing frame is in a crescent shape. By using the reinforcing frame in a crescent shape, the raised portion of the reinforcing frame can directly contact the inner wall of the cylinder, thereby avoiding direct contact between the entire piston skirt and the inner wall of the cylinder, thereby reducing deformation or damage to the piston skirt.
[0012] Preferably, the first reinforcement block is in an "X" shape. The X-shaped first reinforcement block can evenly disperse the pressure on the reinforcement frame, thereby ensuring the overall compression resistance of the reinforcement frame.
[0013] Preferably, the second reinforcement block is in a V-shape. The V-shaped second reinforcement block can evenly disperse the pressure on the piston skirt, thereby enhancing the compression resistance of the piston skirt.
[0014] Preferably, the reinforcement frame, the first reinforcement block, the second reinforcement block and the third reinforcement block are all aluminum alloy components.
[0015] The beneficial effects of the utility model are:
[0016] 1. The reinforcement frame is used to directly contact the inner wall of the cylinder, thereby avoiding direct contact between the piston skirt and the inner wall of the cylinder, reducing the wear of the piston skirt as a whole, and ensuring the service life of the piston skirt. The first reinforcement block is used to strengthen the surface of the reinforcement frame, ensuring the compression and wear resistance of the reinforcement frame, and thus ensuring the service life of the reinforcement frame;
[0017] 2. The hollow groove is used to reduce the weight of the piston skirt, ensuring the lightweight of the piston, thereby reducing the inertial force of the piston during movement, reducing vibration and noise. The second reinforcing block distributed in an annular manner is used to strengthen the piston skirt, ensuring the compression resistance of the piston skirt, thereby preventing the piston skirt from deforming;
[0018] 3. The third reinforcement block arranged obliquely is used to strengthen the overall structure of the piston skirt, thereby improving the stability and bearing capacity of the piston skirt structure, thereby ensuring the service life of the piston skirt. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the strengthening mechanism structure of the utility model;
[0021] Figure 3 for Figure 2 A magnified view of middle;
[0022] Figure 4 for Figure 2 Enlarged view of B.
[0023] In the figure: 1. piston head; 2. piston skirt; 3. reinforcement mechanism; 31. reinforcement frame; 32. first reinforcement block; 33. hollow groove; 34. second reinforcement block; 35. third reinforcement block. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] When implementing: Figure 1-4 As shown, a skirt-reinforced piston comprises: a piston head 1, the bottom end of the piston head 1 is fixedly connected to a piston skirt 2; a reinforcing mechanism 3, which is used to enhance the overall wear resistance of the piston skirt 2 and is arranged on the surface of the piston skirt 2; wherein the reinforcing mechanism 3 comprises two reinforcing frames 31 fixedly connected to the surface of the piston skirt 2, the inner wall of the reinforcing frame 31 is fixedly connected to a first reinforcing block 32 distributed in an annular manner, the reinforcing frame 31 is in a crescent shape, and the first reinforcing block 32 is in an "X" shape.
[0026] It should be noted that the piston head 1 and the piston skirt 2 in the above description are both relatively mature devices in the existing technology. The specific models can be selected according to actual needs and will not be described in detail here.
[0027] When the piston is working in the cylinder, the protrusion on the reinforcement frame 31 contacts the inner wall of the cylinder, which reduces the overall wear of the piston skirt 2 and ensures the overall wear resistance of the piston skirt 2. The "X"-shaped first reinforcement block 32 evenly disperses the pressure on the reinforcement frame 31, avoiding deformation of the reinforcement frame 31 during operation and ensuring the compression resistance of the reinforcement frame 31.
[0028] like Figure 4 As shown, a hollow groove 33 is provided inside the piston skirt 2, and the inner wall of the hollow groove 33 is fixedly connected with an annularly distributed second reinforcement block 34, and the second reinforcement block 34 is in a "V" shape. The hollow groove 33 reduces the weight of the piston skirt 2, thereby reducing the weight of the piston as a whole. The multiple V-shaped second reinforcement blocks 34 evenly disperse the pressure on the piston skirt 2, and the second reinforcement blocks 34 strengthen the compression resistance of the piston skirt 2, thereby preventing the piston skirt 2 from deforming.
[0029] like Figure 3-4 As shown, the inner wall of the piston skirt 2 is fixedly connected with a third reinforcing block 35 distributed in an annular manner, and the lower end of the surface of the third reinforcing block 35 forms an angle with the horizontal plane. The reinforcing frame 31, the first reinforcing block 32, the second reinforcing block 34 and the third reinforcing block 35 are all aluminum alloy components. The reinforcing frame 31, the first reinforcing block 32, the second reinforcing block 34 and the third reinforcing block 35 of the aluminum alloy components have good mechanical properties and wear resistance, which can effectively improve the bearing capacity of the piston skirt 2 and reduce wear, thereby extending the service life of the piston. The third reinforcing block 35 arranged obliquely ensures the structural stability and bearing capacity of the piston skirt 2. It effectively disperses the pressure and impact force on the piston skirt 2 during operation, thereby reducing the deformation and damage of the piston skirt 2.
[0030] When the utility model is in use, the convex part on the reinforcing frame 31 contacts with the inner wall of the cylinder, reducing the overall wear of the piston skirt 2, ensuring the overall wear resistance of the piston skirt 2. The "X"-shaped first reinforcing block 32 evenly disperses the pressure received by the reinforcing frame 31, ensuring the compressive performance of the reinforcing frame 31 and avoiding deformation of the reinforcing frame 31 during operation. The hollow groove 33 reduces the weight of the piston skirt 2, reducing the overall weight of the piston. The multiple V-shaped second reinforcing blocks 34 evenly disperse the pressure received by the piston skirt 2, and the second reinforcing blocks 34 enhance the compressive capacity of the piston skirt 2, thereby avoiding deformation of the piston skirt 2. The inclined third reinforcing block 35 ensures the structural stability and load-bearing capacity of the piston skirt 2. Effectively dispersing the pressure and impact force received by the piston skirt 2 during operation, thereby reducing the deformation and damage of the piston skirt 2. The reinforcing frame 31, the first reinforcing block 32, the second reinforcing block 34 and the third reinforcing block 35 made of aluminum alloy components have good mechanical properties and wear resistance, can effectively improve the bearing capacity of the piston skirt 2 and reduce wear, thereby extending the service life of the piston.
[0031] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A skirt-reinforced piston, characterized in that: include: A piston head (1), wherein the bottom end of the piston head (1) is fixedly connected to a piston skirt (2); A reinforcing mechanism (3), used for reinforcing the overall wear resistance of the piston skirt (2), wherein the reinforcing mechanism (3) is arranged on the surface of the piston skirt (2); The reinforcing mechanism (3) comprises two reinforcing frames (31) fixedly connected to the surface of the piston skirt (2), and the inner wall of the reinforcing frame (31) is fixedly connected with an annularly distributed first reinforcing block (32).
2. A skirt-reinforced piston according to claim 1, characterized in that: A hollow groove (33) is provided inside the piston skirt (2), and an inner wall of the hollow groove (33) is fixedly connected to an annularly distributed second reinforcement block (34).
3. A skirt-reinforced piston according to claim 2, characterized in that: The inner wall of the piston skirt (2) is fixedly connected with third reinforcement blocks (35) distributed in an annular manner.
4. A skirt-reinforced piston according to claim 3, characterized in that: The lower end of the surface of the third reinforcement block (35) forms an angle with the horizontal plane.
5. A skirt-reinforced piston according to claim 1, characterized in that: The reinforcement frame (31) is in the shape of a crescent.
6. A skirt-reinforced piston according to claim 1, characterized in that: The first reinforcement block (32) is in an "X" shape.
7. A skirt-reinforced piston according to claim 2, characterized in that: The second reinforcement block (34) is in a V-shape.
8. The skirt-reinforced piston according to claim 3, characterized in that: The reinforcement frame (31), the first reinforcement block (32), the second reinforcement block (34) and the third reinforcement block (35) are all aluminum alloy components.
Citation Information
Patent Citations
High-strength light-weight piston
CN217152130U