A piston reinforcement mechanism for an internal combustion engine

Abstract

The utility model relates to internal combustion engine parts technical field especially is a kind of internal combustion engine piston reinforcing mechanism, including piston skirt, the top of the outer wall of piston skirt is equidistant and is opened with oil ring groove, the lower portion of piston skirt is provided with piston connecting rod, the piston connecting rod includes the connecting rod main body being set in the lower portion of piston skirt, the top of connecting rod main body extends to the inside of piston skirt, the middle part of the top of connecting rod main body is penetrated with the piston pin shaft for being connected with piston skirt, the two sides of piston skirt inner cavity are symmetrically connected with reinforcing plate, the both ends of two reinforcing plate are fixedly connected with the inner wall of piston skirt, two reinforcing plate is respectively set in the two sides of piston pin shaft, annular groove is equidistantly opened in the side of two reinforcing plate mutually close, the piston pin shaft includes the rotating layer being penetrated through the top center of connecting rod main body, reduce the friction between piston pin shaft and piston skirt, and strengthen the connection stability between piston skirt and piston connecting rod.

Description

Technical Field

[0001] This utility model relates to the technical field of internal combustion engine parts, specifically to an internal combustion engine piston strengthening mechanism. Background Technology

[0002] As a core component of an internal combustion engine, the piston's design and manufacturing quality directly determine the engine's overall performance and long-term operational reliability. In actual operation, the piston not only has to withstand extreme conditions of high temperature and high pressure, but also repeatedly undergoes high-speed reciprocating motion. Therefore, its structural strength, material selection, and surface treatment process all have a crucial impact on the combustion efficiency, output power, and service life of the internal combustion engine. Existing pistons experience significant wear between the piston pin bore and the piston pin during use, and the connection stability between the piston skirt and the piston rod is poor. Under long-term high-speed operation, loosening is likely to occur, thus affecting the normal operation of the internal combustion engine. Utility Model Content

[0003] The purpose of this invention is to provide a piston strengthening mechanism for internal combustion engines to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An internal combustion engine piston reinforcement mechanism includes a piston skirt. Oil ring grooves are equidistantly spaced at the top of the outer wall of the piston skirt. A piston connecting rod is disposed below the piston skirt. The connecting rod includes a connecting rod body disposed below the piston skirt, with the top of the connecting rod body extending into the interior of the piston skirt. A piston pin for connecting to the piston skirt passes through the middle of the top of the connecting rod body. Reinforcing plates are symmetrically connected to both sides of the inner cavity of the piston skirt. Both ends of the two reinforcing plates are fixedly connected to the inner wall of the piston skirt. The two reinforcing plates are respectively disposed on both sides of the piston pin, and equidistant annular grooves are formed on the side of the two reinforcing plates that are close to each other.

[0005] As a preferred embodiment of this utility model, connecting blocks are fixedly connected to both sides of the bottom end of the connecting rod body, and mounting blocks are connected to the bottom of the two connecting blocks by fastening bolts, with a connecting rod cover provided between the two mounting blocks.

[0006] As a preferred embodiment of this utility model, the two sides of the connecting rod cover are respectively fixedly connected to the sides of the two mounting blocks that are close to each other. The connecting rod cover is arc-shaped, and the middle part of the bottom end of the connecting rod body is also arc-shaped.

[0007] As a preferred embodiment of this utility model, heat dissipation holes are evenly provided on both sides of the outer wall of the piston skirt, and the diameter of the heat dissipation holes is 2 to 3.5 mm.

[0008] Through the above technical solution, the heat dissipation holes can dissipate the heat generated by the piston skirt during operation in a timely manner, preventing the piston skirt from being affected by excessive temperature, thereby improving the working efficiency of the entire internal combustion engine piston strengthening mechanism.

[0009] As a preferred embodiment of this utility model, the piston pin includes a rotating layer that passes through the center of the top end of the connecting rod body. The outer wall of the rotating layer is fixedly connected to the inner wall of the connecting rod body, and the inner side of the connecting rod body is provided with the pin body.

[0010] As a preferred embodiment of this utility model, ball bearings are evenly distributed between the pin body and the rotating layer. The ball bearings are connected to the pin body through a ball bearing retainer, and the ball bearings are movably connected to the inner wall of the rotating layer.

[0011] Through the above technical solution, the outer surface of the piston pin body is connected to the rotating layer by ball bearings, which greatly reduces the friction during rotation, reduces wear, and improves the service life of the piston pin, thereby ensuring the stability of the internal combustion engine operation.

[0012] As a preferred embodiment of this utility model, sleeves are equidistantly connected to both outer walls of the rotating layer, and a positioning block penetrates the side of the sleeve away from the rotating layer. The end of the positioning block away from the sleeve is arc-shaped.

[0013] As a preferred embodiment of this utility model, the inner cavity of the sleeve is provided with a spring, the end of the positioning block away from the sleeve is inserted into the inside of the annular groove and is slidably connected with the inner wall of the spring, one end of the spring is fixedly connected to the inner wall of the sleeve, and the other end of the spring is fixedly connected to the positioning block.

[0014] Through the above technical solution, the positioning block can be tightly inserted into the annular groove under the action of the spring, which enhances the connection stability between the piston skirt and the piston connecting rod, effectively avoids loosening under long-term high-speed operation, and further ensures the normal operation of the internal combustion engine.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the rotating layer is connected to the outside of the piston pin body by ball bearings, which greatly reduces the friction during rotation, reduces wear, and improves the service life of the piston pin, thereby ensuring the stability of the internal combustion engine operation.

[0016] 2. In this utility model, the positioning block can be tightly inserted into the annular groove under the action of the spring, which enhances the connection stability between the piston skirt and the piston connecting rod, effectively avoids loosening under long-term high-speed operation, and further ensures the normal operation of the internal combustion engine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the piston pin of this utility model; Figure 3 This is a top view schematic diagram of the connection structure between the piston pin and the piston skirt of this utility model; Figure 4 This is an enlarged structural diagram of point A in this utility model.

[0018] In the diagram: 1. Piston skirt; 2. Oil ring groove; 3. Piston connecting rod; 4. Piston pin; 5. Reinforcing plate; 6. Annular groove; 7. Heat dissipation hole; 301. Connecting rod body; 302. Connecting block; 303. Mounting block; 304. Connecting rod cap; 401. Rotating layer; 402. Pin body; 403. Ball bearing; 404. Sleeve; 405. Positioning block; 406. Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0021] For examples, please refer to Figure 1-4 This utility model provides a technical solution: An internal combustion engine piston strengthening mechanism includes a piston skirt 1. Oil ring grooves 2 are equidistantly provided on the top of the outer wall of the piston skirt 1. A piston connecting rod 3 is provided below the piston skirt 1. The piston connecting rod 3 includes a connecting rod body 301 provided below the piston skirt 1. The top of the connecting rod body 301 extends into the interior of the piston skirt 1. A piston pin 4 for connecting with the piston skirt 1 passes through the middle of the top of the connecting rod body 301. The piston skirt 1 has two reinforcing plates 5 symmetrically connected to both sides of its inner cavity. Both ends of the two reinforcing plates 5 are fixedly connected to the inner wall of the piston skirt 1. The two reinforcing plates 5 are respectively set on both sides of the piston pin 4. The two reinforcing plates 5 are provided with annular grooves 6 at equal intervals on the side that is close to each other. The piston skirt 1 has heat dissipation holes 7 evenly opened on both sides of its outer wall. The diameter of the heat dissipation holes 7 is 2 to 3.5 mm. Connecting blocks 302 are fixedly connected to both sides of the bottom end of the connecting rod body 301. The bottom of each connecting block 302 is connected to a mounting block 303 by fastening bolts. A connecting rod cover 304 is provided between the two mounting blocks 303. The two sides of the connecting rod cover 304 are fixedly connected to the side of the two mounting blocks 303 that are close to each other. The connecting rod cover 304 is arc-shaped. The middle part of the bottom end of the connecting rod body 301 is also arc-shaped. The piston pin 4 includes a rotating layer 401 that passes through the center of the top end of the connecting rod body 301. The outer wall of the rotating layer 401 is fixedly connected to the inner wall of the connecting rod body 301. A pin body 402 is provided on the inner side of the connecting rod body 301. Balls 403 are evenly distributed between the pin body 402 and the rotating layer 401. The balls 403 are connected to the pin body 402 through a ball retainer. The balls 403 are movably connected to the inner wall of the rotating layer 401. Both outer walls of the rotating layer 401 are equidistantly connected with sleeves 404. On the side of the sleeves 404 away from the rotating layer 401, a positioning block 405 passes through. The end of the positioning block 405 away from the sleeve 404 is arc-shaped. The end of the positioning block 405 away from the sleeve 404 is inserted into the inside of the annular groove 6 and is slidably connected to the inner wall of the spring 406. The inner cavity of the sleeve 404 is provided with the spring 406. One end of the spring 406 is fixedly connected to the inner wall of the sleeve 404, and the other end of the spring 406 is fixedly connected to the positioning block 405.

[0022] Under the elastic force of the spring 406, the positioning block 405 pops out and is tightly inserted into the annular groove 6, which enhances the connection stability between the piston skirt 1 and the piston connecting rod 3 and effectively avoids the phenomenon of loosening under long-term high-speed operation. In this embodiment, during the rotation of the piston pin 4, the evenly distributed balls 403 between the pin body 402 and the rotating layer 401 transmit power by rolling, which greatly reduces the friction during rotation, reduces wear, and improves the service life of the piston pin 4, thereby ensuring the stability of the internal combustion engine operation.

[0023] The working process of this utility model is as follows: During use, the top end of the connecting rod body 301 extends into the interior of the piston skirt 1. When the positioning blocks 405 on both sides of the rotating layer 401 enter the interior of the piston skirt 1, because the end of the positioning block 405 away from the sleeve 404 is arc-shaped, it retracts into the sleeve 404 when squeezed by the inner wall of the piston skirt 1, simultaneously compressing the spring 406. When the positioning block 405 moves to the position of the annular groove 6, under the elastic force of the spring 406, the positioning block 405 pops out and tightly inserts into the annular groove 6, enhancing the connection stability between the piston skirt 1 and the piston connecting rod 3, effectively... This avoids loosening under long-term high-speed operation. At the same time, during the rotation of the piston pin 4, the evenly distributed balls 403 between the main body 402 and the rotating layer 401 transmit power through rolling, which greatly reduces the friction during rotation, reduces wear, and improves the service life of the piston pin 4, thereby ensuring the stability of the internal combustion engine operation. In addition, the heat dissipation holes 7 evenly opened on both sides of the outer wall of the piston skirt 1 can dissipate the heat generated by the piston skirt 1 during operation in a timely manner, preventing the piston skirt 1 from being affected by excessive temperature, thereby improving the working efficiency of the entire internal combustion engine piston strengthening mechanism.

[0024] All standard parts used in this application can be purchased from the market. 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 are also general components, which are common knowledge in this field.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A piston strengthening mechanism for an internal combustion engine, comprising a piston skirt (1), characterized in that: Oil ring grooves (2) are provided at equal intervals on the top of the outer wall of the piston skirt (1). A piston connecting rod (3) is provided below the piston skirt (1). The piston connecting rod (3) includes a connecting rod body (301) provided below the piston skirt (1). The top of the connecting rod body (301) extends into the interior of the piston skirt (1). A piston pin (4) for connecting with the piston skirt (1) passes through the middle of the top of the connecting rod body (301). Reinforcing plates (5) are symmetrically connected to both sides of the inner cavity of the piston skirt (1). Both ends of the two reinforcing plates (5) are fixedly connected to the inner wall of the piston skirt (1). The two reinforcing plates (5) are respectively provided on both sides of the piston pin (4). Annular grooves (6) are provided at equal intervals on the side of the two reinforcing plates (5) that are close to each other.

2. The internal combustion engine piston strengthening mechanism according to claim 1, characterized in that: Connecting blocks (302) are fixedly connected to both sides of the bottom end of the connecting rod body (301). The bottom of each of the two connecting blocks (302) is connected to an mounting block (303) by fastening bolts. A connecting rod cover (304) is provided between the two mounting blocks (303).

3. The internal combustion engine piston strengthening mechanism according to claim 2, characterized in that: The two sides of the connecting rod cover (304) are fixedly connected to the two mounting blocks (303) on the side close to each other. The connecting rod cover (304) is arc-shaped, and the middle part of the bottom end of the connecting rod body (301) is also arc-shaped.

4. The internal combustion engine piston strengthening mechanism according to claim 1, characterized in that: The piston skirt (1) has heat dissipation holes (7) evenly distributed on both sides of its outer wall. The diameter of the heat dissipation holes (7) is 2 to 3.5 mm.

5. The internal combustion engine piston strengthening mechanism according to claim 1, characterized in that: The piston pin (4) includes a rotating layer (401) that passes through the center of the top of the connecting rod body (301). The outer wall of the rotating layer (401) is fixedly connected to the inner wall of the connecting rod body (301). The inner side of the connecting rod body (301) is provided with a pin body (402).

6. The internal combustion engine piston strengthening mechanism according to claim 5, characterized in that: Ball bearings (403) are evenly distributed between the main body of the pin (402) and the rotating layer (401). The ball bearings (403) are connected to the main body of the pin (402) through a ball bearing retainer. The ball bearings (403) are movably connected to the inner wall of the rotating layer (401).

7. The internal combustion engine piston strengthening mechanism according to claim 6, characterized in that: Both outer walls of the rotating layer (401) are connected with sleeves (404) at equal intervals. A positioning block (405) runs through the side of the sleeve (404) away from the rotating layer (401). The end of the positioning block (405) away from the sleeve (404) is arc-shaped.

8. The internal combustion engine piston strengthening mechanism according to claim 7, characterized in that: The inner cavity of the sleeve (404) is provided with a spring (406). The end of the positioning block (405) away from the sleeve (404) is inserted into the inside of the annular groove (6) and is slidably connected to the inner wall of the spring (406). One end of the spring (406) is fixedly connected to the inner wall of the sleeve (404), and the other end of the spring (406) is fixedly connected to the positioning block (405).

Images