Lightweight high-strength gas compressor connecting rod

By incorporating reinforcing ribs and weight-reducing holes in the connecting rod of the gas compressor, and employing a tight connection with bolts and fastening nuts, the problem of traditional connecting rods being prone to damage under complex loads is solved, achieving a high-strength and stable connecting rod connection, thereby improving the operating efficiency and reliability of the compressor.

CN224533236UActive Publication Date: 2026-07-21WUXI JINHONGXIN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI JINHONGXIN TECH CO LTD
Filing Date
2025-07-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional connecting rods are prone to stress concentration under long-term exposure to complex alternating loads, leading to fatigue damage, loosening, increased clearance, vibration and noise, and even separation of the connecting rod from the crankshaft, causing compressor failure.

Method used

A lightweight, high-strength gas compressor connecting rod is designed. By setting reinforcing ribs and weight-reducing holes inside the connecting rod body, combined with the connection structure between the connecting rod big end and the connecting rod cap, and using a tight connection with bolts and fastening nuts, stability and reliability are ensured. The connection between the piston pin and the piston body prevents gas leakage.

Benefits of technology

The strength and torsional resistance of the connecting rod were improved, the weight was reduced, the inertial force was decreased, the stability and reliability of the connection were ensured, the equipment maintenance work and downtime were reduced, and the operating efficiency and stability of the compressor were improved.

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Abstract

The utility model discloses a kind of light weight high-strength gas compressor connecting rod, belong to gas compressor technical field, it includes: connecting rod body, connecting rod body includes: connecting rod body, the inside of connecting rod body is provided with multiple groups of reinforcing ribs, the inside of connecting rod body is provided with multiple groups of lightening holes, the bottom of connecting rod body is fixedly installed with connecting rod big head, the outside of connecting rod big head is fixedly installed with two groups of connecting seat one, the bottom of connecting rod big head is abutted with connecting rod cover, the outside of connecting rod cover is fixedly installed with two groups of connecting seat two, the inside of connecting seat one and connecting seat two located in same side is slidably installed with same bolt, so that it can withstand huge alternating load in the process of power transmission and conversion movement form, lightening hole reduces connecting rod weight under the premise of not affecting strength, reduces inertial force, further guarantee the reliability of connecting rod and crankshaft connection, reduce maintenance work and equipment downtime caused by connection loosening.
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Description

Technical Field

[0001] This utility model relates to the field of gas compressor technology, and in particular to a lightweight, high-strength gas compressor connecting rod. Background Technology

[0002] In modern industrial production, gas compressors are key equipment and are widely used in many fields such as chemical industry, energy, and machinery manufacturing. Their performance directly affects production efficiency and product quality. As the core component connecting the piston and crankshaft in the gas compressor, the connecting rod undertakes the important function of converting the rotational motion of the crankshaft into the reciprocating linear motion of the piston and transmitting power. Its performance plays a decisive role in the overall operation of the compressor.

[0003] Traditional connecting rods fail to adequately consider mechanical distribution and lack reasonable reinforcement and weight reduction structures. Under long-term exposure to complex alternating loads, they are prone to stress concentration, leading to fatigue damage and serious failures such as connecting rod breakage. Over long-term operation, problems such as loosening and increased clearance may occur, causing vibration and noise, and even causing the connecting rod to detach from the crankshaft, resulting in compressor failure. Therefore, we propose a lightweight, high-strength gas compressor connecting rod to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight, high-strength gas compressor connecting rod to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lightweight, high-strength gas compressor connecting rod includes: a connecting rod body, the connecting rod body comprising: a connecting rod shaft, the connecting rod shaft having multiple sets of reinforcing ribs inside, the connecting rod shaft having multiple sets of weight-reducing holes inside, a connecting rod big end fixedly installed at the bottom of the connecting rod shaft, two sets of connecting seats one fixedly installed on the outer side of the connecting rod big end, a connecting rod cap abutting the bottom of the connecting rod big end, two sets of connecting seats two fixedly installed on the outer side of the connecting rod cap, the same bolt slidably installed inside the connecting seats one and two on the same side, a fastening nut provided inside both sets of connecting seats two, a connecting rod small end fixedly installed at the top of the connecting rod shaft, a piston pin rotatably installed inside the connecting rod small end, the same piston body fixedly installed at both ends of the piston pin, and multiple sets of piston rings sleeved on the outer side of the piston body.

[0007] Preferably, the inside of the connecting rod big end abuts against the connecting rod second tile, and the inside of the connecting rod cover abuts against the connecting rod first tile, and the connecting rod first tile and the connecting rod second tile are interlocked.

[0008] Preferably, the two sets of bolts are threadedly connected within corresponding fastening nuts.

[0009] Preferably, the two sets of bolts are threadedly connected in corresponding fastening nuts, and the interior of both sets of connecting seats is provided with fixing grooves, with the two sets of fastening nuts set in corresponding fixing grooves.

[0010] Preferably, the piston pin is fixedly installed inside the piston body.

[0011] Preferably, a connecting plate is fixedly installed at one end of both the first connecting rod and the second connecting rod, and a connecting slot is opened at the other end of both the first connecting rod and the second connecting rod, and the two sets of connecting plates are adapted to the corresponding connecting slots.

[0012] In this utility model, a lightweight high-strength gas compressor connecting rod is described. The small end of the connecting rod is connected to the piston body through a piston pin. Multiple sets of piston rings fitted on the outside of the piston body serve to seal the cylinder, prevent gas leakage, improve compression efficiency, and ensure stable gas pressure output by the compressor to meet the gas compression requirements of industrial production.

[0013] This utility model features a rational structural design. The connecting rod big end is connected to the crankshaft via internally abutting connecting rod bearings one and two, which interlock. This structure ensures the stability and reliability of the connection. The connecting rod big end and connecting rod cap are tightly connected by bolts and fastening nuts inside connecting seat one and connecting seat two. The setting of fixing grooves ensures that the fastening nut will not deflect, ensuring that it will not loosen during operation and playing a positioning role for the nut, making the nut installation more accurate. It also facilitates the installation and fixing of the nut during assembly. Multiple sets of reinforcing ribs inside the connecting rod body enhance the strength and torsional performance of the rod body, enabling it to withstand huge alternating loads during power transmission and motion conversion. The weight reduction hole reduces the weight of the connecting rod without affecting the strength, reducing inertial force and further ensuring the reliability of the connection between the connecting rod and the crankshaft, reducing maintenance work and equipment downtime caused by loose connection. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a lightweight, high-strength gas compressor connecting rod proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural schematic diagram of a lightweight, high-strength gas compressor connecting rod proposed in this utility model;

[0016] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0017] Figure 4 This is a three-dimensional structural diagram showing the disassembled connecting rod bearing 1 and connecting rod bearing 2 of a lightweight, high-strength gas compressor connecting rod proposed in this utility model.

[0018] In the diagram: 1. Connecting rod body; 2. Connecting rod shaft; 3. Weight reduction hole; 4. Connecting rod big end; 5. Connecting rod cap; 6. Connecting rod bearing 1; 7. Connecting seat 1; 8. Connecting seat 2; 9. Connecting rod small end; 10. Piston pin; 11. Piston ring; 12. Piston body; 13. Connecting rod bearing 2; 14. Connecting plate; 15. Connecting slot; 16. Bolt; 17. Fixing groove; 18. Fastening nut; 19. Reinforcing rib. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-4 A lightweight, high-strength gas compressor connecting rod includes: a connecting rod body, the connecting rod body comprising: a connecting rod shaft, the connecting rod shaft having multiple sets of reinforcing ribs inside, the connecting rod shaft having multiple sets of weight-reducing holes inside, a connecting rod big end fixedly installed at the bottom of the connecting rod shaft, two sets of connecting seats one fixedly installed on the outer side of the connecting rod big end, a connecting rod cap abutting the bottom of the connecting rod big end, two sets of connecting seats two fixedly installed on the outer side of the connecting rod cap two, the same bolt being slidably installed inside the connecting seats one and two on the same side, and a fastening nut being provided inside both sets of connecting seats two, a connecting rod small end fixedly installed at the top of the connecting rod shaft, a piston pin being rotatably installed inside the connecting rod small end, the same piston body being fixedly installed at both ends of the piston pin, and multiple sets of piston rings being sleeved on the outer side of the piston body.

[0021] In this embodiment, the inside of the connecting rod big end abuts against the connecting rod bearing two, and the inside of the connecting cover abuts against the connecting rod bearing one. The connecting rod bearing one and the connecting rod bearing two are interlocked. The interlocking structure ensures that the connecting rod bearings will not shift during operation and always maintain a good friction reduction effect.

[0022] In this embodiment, two sets of bolts are threadedly connected to corresponding fastening nuts to ensure reliable power transmission and maintain the normal working cycle of the compressor.

[0023] In this embodiment, two sets of bolts are threaded into corresponding fastening nuts. Both sets of connecting seats have internal fixing grooves, and the two sets of fastening nuts are set in corresponding fixing grooves, which effectively avoids failure of the connecting rod structure due to loose connection and ensures stable operation of the compressor.

[0024] In this embodiment, the piston pin is fixedly installed inside the piston body to improve the working efficiency of the compressor.

[0025] In this embodiment, a connecting plate is fixedly installed at one end of both connecting rod bearing 1 and connecting rod bearing 2, and a connecting slot is opened at the other end of both connecting rod bearing 1 and connecting rod bearing 2. The two sets of connecting plates are matched with the corresponding connecting slots to avoid problems such as increased wear and abnormal noise caused by loose connecting rod bearings, thus ensuring stability and reliability.

[0026] In this embodiment, during use, the multiple sets of reinforcing ribs inside the connecting rod enhance the strength and torsional performance of the rod, enabling it to withstand huge alternating loads during power transmission and motion conversion. The weight reduction holes reduce the weight of the connecting rod and reduce inertial forces without affecting its strength.

[0027] The small end of the connecting rod is connected to the piston body through the piston pin. Multiple sets of piston rings fitted on the outside of the piston body serve to seal the cylinder and prevent gas leakage.

[0028] The connecting rod big end is connected to the crankshaft via connecting rod bearing 1 and connecting rod bearing 2, which are internally abutted together. Connecting rod bearing 1 and connecting rod bearing 2 are interlocked, ensuring the stability and reliability of the connection. The connecting rod big end and connecting rod cap are tightly connected to each other via bolts and fastening nuts inside connecting seat 1 and connecting seat 2. By setting a fixing groove, the fastening nut is prevented from deflecting, ensuring that it will not loosen during operation and playing a positioning role for the nut, making the nut installation more accurate. It also helps to facilitate the installation and fixing of the nut during assembly.

[0029] The above provides a detailed description of a lightweight, high-strength gas compressor connecting rod provided by this utility model. Specific embodiments have been used to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are only intended to aid in understanding the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A lightweight, high-strength gas compressor connecting rod, characterized in that, include: The connecting rod body (1) includes: a connecting rod body (2), the connecting rod body (2) having multiple sets of reinforcing ribs (19) inside, the connecting rod body (2) having multiple sets of weight-reducing holes (3) inside, a connecting rod big end (4) fixedly installed at the bottom of the connecting rod body (2), two sets of connecting seats one (7) fixedly installed on the outside of the connecting rod big end (4), a connecting rod cover (5) abutting the bottom of the connecting rod big end (4), and two sets of connecting seats two (8) fixedly installed on the outside of the connecting rod cover (5). The connecting seat 1 (7) and connecting seat 2 (8) located on the same side are slidably installed with the same bolt (16). Both sets of connecting seats 2 (8) are provided with fastening nuts (18). The top of the connecting rod body (2) is fixedly installed with the connecting rod small end (9). The piston pin (10) is rotatably installed inside the connecting rod small end (9). The two ends of the piston pin (10) are fixedly installed with the same piston body (12). Multiple sets of piston rings (11) are sleeved on the outside of the piston body (12).

2. The lightweight, high-strength gas compressor connecting rod according to claim 1, characterized in that, The inside of the connecting rod big end (4) is abutted by the connecting rod tile 2 (13), and the inside of the connecting rod cover is abutted by the connecting rod tile 1 (6). The connecting rod tile 1 (6) and the connecting rod tile 2 (13) are inserted into each other.

3. The lightweight, high-strength gas compressor connecting rod according to claim 1, characterized in that, The two sets of bolts (16) are threaded into the corresponding fastening nuts (18).

4. The lightweight, high-strength gas compressor connecting rod according to claim 1, characterized in that, The two sets of bolts (16) are threaded into the corresponding fastening nuts (18), and the two sets of connecting seats (8) are provided with fixing grooves (17) inside, and the two sets of fastening nuts (18) are set in the corresponding fixing grooves (17).

5. A lightweight, high-strength gas compressor connecting rod according to claim 1, characterized in that, The piston pin (10) is fixedly installed inside the piston body (12).

6. A lightweight, high-strength gas compressor connecting rod according to claim 2, characterized in that, One end of each of the first connecting rod (6) and the second connecting rod (13) is fixedly equipped with a connecting plate (14), and the other end of each of the first connecting rod (6) and the second connecting rod (13) is provided with a connecting slot (15). The two sets of connecting plates (14) are compatible with the corresponding connecting slots (15).