Engine connecting rod with rapid cooling structure

Abstract

The utility model relates to the technical field of engine connecting rods, and discloses an engine connecting rod with a rapid cooling structure, which comprises a rod body, a connecting rod small end and a connecting rod large end are fixedly connected to two sides of the rod body respectively, and a connecting rod cover is detachably connected to the outer side wall of the connecting rod large end. First cold water cavities are formed in the connecting rod big head and the upper end in the connecting rod cover; according to the connecting rod, cooling water is input into the rod body through the first cold water cavity, the second cold water cavity and the heat dissipation fins when the connecting rod is used, the cooling water circularly flows through the first cold water cavity and the second cold water cavity, and heat exchange is achieved through heat guided out by the heat dissipation fins while the cooling water flows; and the connecting rod is prevented from being in a high-temperature state for a long time, so that the service life of the connecting rod is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engine connecting rods, in particular to an engine connecting rod with a rapid cooling structure. Background Art

[0002] During the movement of a car, the engine provides power, converting the reciprocating motion of the piston into rotational motion on the crankshaft through the connecting rod. The crankshaft's rotation outputs torque to drive the flywheel. The engine connecting rod's function is to transmit the force exerted on the piston to the crankshaft, converting the reciprocating motion of the piston into rotational motion of the crankshaft. The connecting rod is composed of parts such as the connecting rod body, connecting rod cap, connecting rod bolt, and connecting rod bearing. The small end of the connecting rod is used to install the piston pin to connect to the piston.

[0003] When the engine is running, the existing engine connecting rod heats up due to the friction with the piston and crankshaft and the heat generated by combustion. The high temperature will cause the strength of the connecting rod material to decrease, making it more likely to deform or even break when subjected to normal working loads. In addition, repeated thermal cycles and high temperatures will accelerate fatigue damage to the connecting rod material, significantly shortening its fatigue life. Traditional engine connecting rods can only dissipate heat through natural heat dissipation when in use, with low heat dissipation efficiency. It is difficult to achieve rapid heat dissipation when the connecting rod is in use, making it easy for the connecting rod to be in a high-temperature state for a long time, resulting in a short service life of the engine connecting rod. To this end, we propose an engine connecting rod with a rapid cooling structure. Utility Model Content

[0004] The main purpose of the utility model is to provide an engine connecting rod with a rapid cooling structure, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an engine connecting rod with a rapid cooling structure, comprising a rod body, a connecting rod small end and a connecting rod big end fixedly connected on both sides of the rod body, a connecting rod cover detachably connected to the outer wall of the connecting rod big end, a first cold water chamber is provided on the upper ends of the connecting rod big end and the connecting rod cover, a second cold water chamber is provided on the lower ends of the connecting big end and the connecting rod cover, the first cold water chamber and the second cold water chamber are located on one side of the rod body and are interconnected with a water inlet pipe and a drain pipe, the first cold water chamber is provided with a water guide hole on a side relative to the rod body, and the water guide hole is interconnected with the second cold water chamber, and the inner side walls of the first cold water chamber and the second cold water chamber are fixedly connected with heat dissipation fins.

[0006] Preferably, the first cold water chamber and the second cold water chamber opened in the connecting rod cover are fixedly connected to the positioning frame on one side facing the connecting rod big end.

[0007] Preferably, the connecting rod big end and the connecting rod cover are fixedly connected with fixing blocks on both sides, the surfaces of the fixing blocks on both sides of the connecting rod big end are provided with connecting screw holes, and the surfaces of the fixing blocks on both sides of the connecting rod cover are threadedly connected with fastening bolts that are compatible with the connecting screw holes.

[0008] Preferably, reinforcing ribs are provided at the connections between the connecting rod big end, the connecting rod small end and the rod body.

[0009] Preferably, the reinforcing rib smoothly transitions along the outer side wall of the connecting rod big end toward the rod body.

[0010] Preferably, the connection between the water inlet pipe and the drain pipe is interconnected with an external liquid suction pump through a liquid guide tube.

[0011] Preferably, the surfaces of the rod body, the connecting rod big end and the connecting rod small end are all coated with a corrosion-resistant coating.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model cooperates with each other through the water inlet pipe, the drain pipe, the first cold water chamber, the second cold water chamber, the water guide hole and the heat dissipation fin. When the connecting rod is in use, the external liquid suction pump is connected to the water inlet pipe and the drain pipe on the rod body from the side through the liquid guide hose. When the connecting rod is in use, cooling water is sucked by the external liquid suction pump, injected into the first cold water chamber through the water inlet pipe, flows in the first cold water chamber and flows into the second cold water chamber through the water guide hole, and finally flows back to the external liquid storage tank through the drain pipe on one side of the second cold water chamber, so that the water circulates inside the big end of the connecting rod and flows in the flow. During the process, heat exchange is achieved with the big end of the connecting rod, which can effectively and quickly cool down the big end of the connecting rod, avoid the connecting rod from being in a high temperature state, avoid the connecting rod from being in a high temperature state for a long time, and effectively extend the service life of the connecting rod. At the same time, heat dissipation fins are fixed inside the first cold water chamber and the second cold water chamber. With the help of the heat dissipation fins, the heat generated by the connecting rod can be quickly conducted outward and contacted with the water flowing in the cold water chamber, further improving the heat exchange efficiency, thereby improving the cooling effect on the connecting rod, further improving the cooling efficiency and effect, effectively protecting the connecting rod, and increasing the service life of the engine connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a structural diagram of the connecting rod big end of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the connecting rod cover of the utility model;

[0017] Figure 4It is a sectional view of the top view of the utility model.

[0018] In the figure: 1. Small end of connecting rod; 2. Reinforcement rib; 3. Rod body; 4. Water inlet pipe; 5. Drain pipe; 6. Big end of connecting rod; 7. Connecting rod cover; 8. Fixing block; 9. Fastening bolt; 10. Connecting screw hole; 11. First cold water chamber; 12. Second cold water chamber; 13. Heat sink fin; 14. Positioning card frame; 15. Water guide hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0020] See also Figure 1 - Figure 4 , an engine connecting rod with a rapid cooling structure shown in the figure includes a rod body 3, a connecting rod small end 1 and a connecting rod big end 6 are fixedly connected on both sides of the rod body 3, a connecting rod cover 7 is detachably connected to the outer wall of the connecting rod big end 6, a first cold water chamber 11 is opened at the upper end of the connecting big end and the connecting rod cover 7, a second cold water chamber 12 is opened at the lower end of the connecting big end and the connecting rod cover 7, the first cold water chamber 11 and the second cold water chamber 12 are located on one side of the rod body 3 and are interconnected with a water inlet pipe 4 and a drain pipe 5, a water guide hole 15 is opened on the side of the first cold water chamber 11 relative to the rod body 3, and the water guide hole 15 is interconnected with the second cold water chamber 12, and the inner walls of the first cold water chamber 11 and the second cold water chamber 12 are fixedly connected with heat dissipation fins 13; cooling water is sucked by an external suction pump and injected into the first cold water chamber 11 through the water inlet pipe 4, and the first cold water chamber 11 is filled with heat. The cooling water flows through the first cold water chamber 11 and the second cold water chamber 12 with the help of the water guide hole 15, and finally flows back to the external liquid storage tank through the drainage pipe 5 on one side of the second cold water chamber 12, so that the water circulates inside the connecting rod big end 6 and realizes heat exchange with the connecting rod big end 6 during the flow process, thereby effectively cooling the connecting rod big end 6 quickly, avoiding the connecting rod from being in a high temperature state, avoiding the connecting rod from being in a high temperature state for a long time, and effectively extending the service life of the connecting rod. At the same time, heat dissipation fins 13 are fixed inside the first cold water chamber 11 and the second cold water chamber 12. With the help of the heat dissipation fins 13, the heat generated by the connecting rod can be quickly conducted outward and contacted with the water flowing in the cold water chamber, further improving the heat exchange efficiency, thereby improving the cooling effect on the connecting rod, further improving the cooling efficiency and effect, effectively protecting the connecting rod, and extending the service life of the engine connecting rod.

[0021] Among them, the first cold water chamber 11 and the second cold water chamber 12 opened inside the connecting rod cover 7 are fixedly connected to the positioning card frame 14 on the side facing the connecting rod big end 6, and the connecting rod big end 6 and the connecting rod cover 7 are fixedly connected with fixing blocks 8 on both sides of the connecting rod big end 6. The surfaces of the fixing blocks 8 on both sides of the connecting rod big end 6 are provided with connecting screw holes 10, and the surfaces of the fixing blocks 8 on both sides of the connecting rod cover 7 are threadedly connected with fastening bolts 9 that are compatible with the connecting screw holes 10; when the connecting rod cover 7 and the connecting rod big end 6 are connected, the two can be quickly positioned and engaged, ensuring installation accuracy while improving installation efficiency.

[0022] Among them, reinforcing ribs 2 are provided at the connections between the connecting rod big end 6, the connecting rod small end 1 and the rod body 3, and the reinforcing ribs 2 transition smoothly along the outer wall of the connecting rod big end 6 toward the rod body 3; by smoothly transitioning the reinforcing ribs 2 along the outer wall of the connecting rod big end 6 toward the rod body 3, the connection between the rod body 3 and the connecting rod big end 6, the connecting rod small end 1 can be effectively reinforced, thereby improving the structural strength of the engine connecting rod and avoiding easy breakage.

[0023] Among them, the connection points of the water inlet pipe 4 and the drain pipe 5 are interconnected with the external liquid suction pump through the liquid guide tube, and the surfaces of the rod body 3, the connecting rod big end 6 and the connecting rod small end 1 are coated with a corrosion-resistant coating; the connection points of the water inlet pipe 4 and the drain pipe 5 are interconnected with the external liquid suction pump through the liquid guide tube to realize the circulation of water, which is convenient for rapid cooling, and the corrosion-resistant layer can effectively improve the corrosion resistance of the rod body 3, the connecting rod big end 6 and the connecting rod small end 1, and they will not be easily corroded during long-term use, further improving their service life.

[0024] It should be noted that the utility model is an engine connecting rod with a rapid cooling structure, wherein the rod body 3 is connected to the crankshaft and the piston respectively through the connecting rod small end 1 and the connecting rod big end 6, and a first cold water chamber 11 and a second cold water chamber 12 which are the same as the connecting rod big end 6 are provided inside the connecting rod small end. When in use, an external liquid suction pump is connected to the water inlet pipe 4 and the drain pipe 5 on the rod body 3 from the side through a liquid guide hose. When the connecting rod is in use, cooling water is sucked in by the external liquid suction pump, injected into the first cold water chamber 11 through the water inlet pipe 4, flows in the first cold water chamber 11 and flows into the second cold water chamber 12 through the water guide hole 15, and finally flows back to the external liquid storage tank through the drain pipe 5 on one side of the second cold water chamber 12, so that the water body is cooled in the connecting rod small end. The circulating flow inside the head 1 and the connecting rod big end 6 realizes heat exchange with the connecting rod small end 1 and the connecting rod big end 6 during the flow process, thereby effectively cooling the connecting rod small end 1 and the connecting rod big end 6 quickly, preventing the connecting rod from being in a high temperature state for a long time, avoiding affecting the structural strength of the connecting rod due to high temperature, and preventing fracture, thereby effectively extending the service life of the connecting rod. At the same time, heat dissipation fins 13 are fixed inside the first cold water chamber 11 and the second cold water chamber 12. With the help of the heat dissipation fins 13, the heat generated by the connecting rod can be quickly conducted outward and contacted with the water flowing in the cold water chamber, further improving the heat exchange efficiency, thereby increasing the cooling demand for the connecting rod, further improving the cooling efficiency and effect, effectively protecting the connecting rod, and improving the service life of both ends of the engine.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine connecting rod with a rapid cooling structure, comprising a rod body (3), characterized in that: The rod body (3) is fixedly connected to a small connecting rod head (1) and a large connecting rod head (6) on both sides, and the outer wall of the large connecting rod head (6) is detachably connected to a connecting rod cover (7). The upper ends of the large connecting rod head and the connecting rod cover (7) are both provided with a first cold water chamber (11), and the lower ends of the large connecting rod head and the connecting rod cover (7) are both provided with a second cold water chamber (12). The first cold water chamber (11) and the second cold water chamber (12) are located on one side of the rod body (3) and are interconnected with a water inlet pipe (4) and a drain pipe (5). The first cold water chamber (11) is provided with a water guide hole (15) on the side relative to the rod body (3), and the water guide hole (15) is interconnected with the second cold water chamber (12). The inner walls of the first cold water chamber (11) and the second cold water chamber (12) are both fixedly connected with heat dissipation fins (13).

2. The engine connecting rod with a rapid cooling structure according to claim 1, characterized in that: The first cold water chamber (11) and the second cold water chamber (12) opened inside the connecting rod cover (7) are fixedly connected to a positioning card frame (14) on one side facing the connecting rod big end (6).

3. The engine connecting rod with a rapid cooling structure according to claim 1, characterized in that: The connecting rod big end (6) and the connecting rod cover (7) are both fixedly connected with fixing blocks (8), the surfaces of the fixing blocks (8) on both sides of the connecting rod big end (6) are both provided with connecting screw holes (10), and the surfaces of the fixing blocks (8) on both sides of the connecting rod cover (7) are threadedly connected with fastening bolts (9) that are compatible with the connecting screw holes (10).

4. The engine connecting rod with a rapid cooling structure according to claim 1, characterized in that: Reinforcing ribs (2) are provided at the connection points between the connecting rod big end (6), the connecting rod small end (1) and the rod body (3).

5. The engine connecting rod with a rapid cooling structure according to claim 4, characterized in that: The reinforcing rib (2) smoothly transitions along the outer side wall of the connecting rod big end (6) toward the rod body (3).

6. The engine connecting rod with a rapid cooling structure according to claim 1, characterized in that: The connection points between the water inlet pipe (4) and the drainage pipe (5) are interconnected with an external liquid suction pump via a liquid guide tube.

7. The engine connecting rod with a rapid cooling structure according to claim 1, characterized in that: The surfaces of the rod body (3), the connecting rod big end (6) and the connecting rod small end (1) are all coated with a corrosion-resistant coating.

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