Air cooling equipment for engine connecting rod machining
By designing an air-cooled cooling device for engine connecting rod machining, and utilizing the combination of a pressing plate and an impact plate, the problem of difficult removal of surface oxides was solved, achieving rapid internal cooling and reducing temperature difference, thus preventing deformation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU DONGGUANG ZHONGYI PRECISION FORGING CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-24
AI Technical Summary
During the tempering process, the oxides on the surface of the engine connecting rod are difficult to remove, resulting in a large temperature difference between the inside and outside, which may cause deformation.
Design an air-cooled cooling device for engine connecting rod machining. By using a pressing plate and an impact plate, surface oxides are removed and the heat dissipation area is increased. Vibration is controlled by a drive cam and a guide block to achieve rapid internal cooling.
It effectively removes surface oxides, reduces the temperature difference between the inside and outside, prevents deformation, and improves cooling efficiency.
Smart Images

Figure CN224160650U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine connecting rod processing technology, specifically to an air-cooling cooling device for engine connecting rod processing. Background Technology
[0002] Engine connecting rods undergo pretreatment, quenching, tempering, and grinding during machining. In the tempering step, the quenched connecting rod is heated to regain a certain degree of toughness. The purpose of tempering is to eliminate internal stress generated during quenching and improve physical properties such as hardness, strength, and toughness. During tempering, the quenched connecting rod is heated, held at that temperature for a period of time, and then rapidly cooled using cooling equipment. However, during the heating process, an oxide layer forms on the surface of the connecting rod, encapsulating the internal structure and forming an insulating layer. When air cooling is used, only the outer oxide layer is cooled rapidly, while the interior remains stagnant. This condition leads to a significant temperature difference between the inside and outside of the connecting rod, which can even cause deformation in severe cases. Utility Model Content
[0003] The purpose of this invention is to provide an air-cooled cooling device for engine connecting rod processing, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an air-cooled cooling device for engine connecting rod processing, comprising a cooling chamber, at least one blower head fixedly connected to the inner walls on both sides of the cooling chamber, a mounting plate provided in the middle of the cooling chamber, two positioning posts for inserting into the engine connecting rod holes fixedly connected to the upper end of the mounting plate, a pressing plate provided between the two positioning posts, a linkage rod for controlling the position and height of the pressing plate hinged to both sides of the upper end of the pressing plate, a horizontally movable block hinged to the upper end of the two linkage rods, a double-headed electric push rod fixedly connected between the two movable blocks, and a connecting cavity provided inside the left movable block, an impact plate inserted into the left side of the movable block, and an adjusting screw threadedly connected to the right side of the movable block, a drive motor fixedly connected to the upper inner wall of the cooling chamber, a drive cam fixedly connected to the power output end of the drive motor, and a guide block for controlling the vibration of the engine connecting rod provided on the side end of the drive cam.
[0005] Preferably, the main body of the mounting plate has a U-shaped structure, and a groove is formed in the middle of the mounting plate by stamping, with the two positioning posts located on both sides of the groove.
[0006] Preferably, a pressing protrusion is fixedly connected to the left side of the mounting plate. The pressing protrusion has a hemispherical structure. A control button is provided on the inner wall of the cooling chamber. The control button is connected to a double-headed electric push rod and a drive motor. Conveyor rollers driven by chains are provided on both sides of the lower end of the mounting plate.
[0007] Preferably, at least four pressing protrusions are fixedly connected to the lower end of the pressing plate, the side ends of the pressing protrusions are arc-shaped, and the lower ends of the pressing protrusions abut against the engine connecting rod.
[0008] Preferably, at least one heat sink is fixedly connected to both sides of the upper end of the pressing plate, and the heat sink is located at the side end of the linkage rod.
[0009] Preferably, the impact plate has a T-shaped structure, a spring is provided between the impact plate and the inner wall of the connecting cavity, and the top of the adjusting screw has a spherical structure.
[0010] Preferably, a guide block is fixedly connected to the side end of the impact plate, the side end of the guide block is inclined, and the guide block is directly opposite the drive cam.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: when the connecting rod moves to the cooling chamber, the pressing plate presses the connecting rod through the pressing protrusion. At this time, the driving cam drives the impact plate to move and impact the top of the adjusting screw, thereby causing the moving block to vibrate. This vibration is transmitted to the surface of the connecting rod through the pressing plate, removing the oxide on the surface of the connecting rod and exposing the interior. At the same time, the pressing protrusion and the pressing plate can conduct heat, increase the heat dissipation area, and enable the interior of the connecting rod to be cooled quickly, avoiding a large temperature difference between the inside and outside. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the internal connections of the cooling equipment.
[0013] Figure 2 This is a schematic diagram showing the connection between the impact plate and the adjusting screw.
[0014] Figure 3 This is a schematic diagram of the three-dimensional connection of the pressing plate.
[0015] Figure 4 This is a schematic diagram of the 3D connection of the mounting plate.
[0016] In the diagram: 1 Cooling chamber, 2 Mounting plate, 3 Conveyor roller, 4 Extrusion protrusion, 5 Control button, 6 Positioning column, 7 Blower head, 8 Moving block, 9 Drive cam, 10 Double-headed electric push rod, 11 Pressing plate, 12 Guide block, 13 Impact plate, 14 Adjusting screw, 15 Pressing protrusion, 16 Heat dissipation plate, 17 Linkage rod. Detailed Implementation
[0017] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0018] Please see Figure 1-4 This utility model provides a technical solution: an air-cooled cooling device for engine connecting rod processing, including a cooling chamber 1. At least one blower head 7 is fixedly connected to the inner walls of both sides of the cooling chamber 1. A mounting plate 2 is provided in the middle of the cooling chamber 1. Two positioning posts 5 for inserting into the engine connecting rod holes are fixedly connected to the upper end of the mounting plate 2. A pressing plate 11 is provided between the two positioning posts 5. Linkage rods 17 for controlling the height of the pressing plate 11 are hinged to both sides of its upper end. Horizontally movable moving blocks 8 are hinged to the upper ends of the two linkage rods 17. A double-headed electric push rod 10 is fixedly connected between the two moving blocks 8. The push rod 10 is manufactured by Skaman Machinery, and the left movable block 8 has a connecting cavity inside. The left side of the movable block 8 is connected to the impact plate 13, and the right side of the movable block 8 is threadedly connected to the adjusting screw 14. The upper inner wall of the cooling chamber 1 is fixedly connected to the drive motor, which is an MSMD012G1U. The power output end of the drive motor is fixedly connected to the drive cam 9. The side end of the drive cam 9 is provided with a guide block 12 for controlling the vibration of the engine connecting rod. The connecting rod is positioned and installed on the two positioning columns 5, and then transported to the cooling chamber 2 by the mounting plate 2. At this time, the pressing plate 11 moves downward to press the connecting rod.
[0019] The main body of the mounting plate 2 is a U-shaped structure. A groove is formed in the middle of the mounting plate 2 by stamping. Two positioning posts 5 are located on both sides of the groove, which facilitates the use of clamping objects to clamp and secure the connecting rod.
[0020] A pressing protrusion 4 is fixedly connected to the left side of the mounting plate 2. The pressing protrusion 4 is a hemispherical structure. A control button 5 is provided on the inner wall of the cooling chamber 1. The control button 5 is connected to the double-headed electric push rod 10 and the drive motor. Both sides of the lower end of the mounting plate 2 are provided with conveyor rollers 3 driven by chains. When the mounting plate 2 moves to the control button 5, the pressing protrusion 4 presses the control button 5, thereby stopping the mounting plate 2. At this time, the double-headed electric push rod 10 drives two moving blocks 8 to move. The moving blocks control the pressing plate 11 to move downward through the connecting rod 17 and press the connecting rod.
[0021] At least four pressing protrusions 15 are fixedly connected to the lower end of the pressing plate 11. The side ends of the pressing protrusions 15 are arc-shaped. The lower ends of the pressing protrusions 15 abut against the engine connecting rod. The pressing plate can press the connecting rod through the pressing protrusions 15. At the same time, when vibration occurs, the vibration can be transmitted to the connecting rod through the pressing protrusions 15.
[0022] At least one heat sink 16 is fixedly connected to both sides of the upper end of the pressing plate 11. The heat sink 16 is located at the side end of the linkage rod 17. The pressing protrusion 15 can conduct the heat of the linkage rod to the heat sink 16, increase the heat dissipation area, and ensure heat dissipation efficiency.
[0023] The impact plate 13 has a T-shaped structure. A spring is provided between the impact plate 13 and the inner wall of the connecting cavity. The top of the adjusting screw 14 has a spherical structure. A guide block 12 is fixedly connected to the side end of the impact plate 13. The side end of the guide block 12 has an inclined structure. The guide block 12 faces the drive cam 9. When the drive cam 9 rotates, it pushes the guide block 12 and the impact plate 13 to move. The impact plate 13 hits the top of the adjusting screw 14, thereby generating vibration. The vibration is transmitted to the connecting rod, shaking off the oxide on the surface of the connecting rod. When the impact plate 13 moves, it compresses and stores the spring. When the spring is released, the impact plate 13 returns to its original position. By rotating the adjusting screw 14, the distance between the adjusting screw 14 and the impact plate is controlled, thereby controlling the impact force and ensuring that the oxide on the surface of the connecting rod is shaken off.
[0024] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand 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. An air cooling device for engine connecting rod machining, comprising a cooling bin (1), characterized in that: At least one blower head (7) is fixedly connected to the inner walls on both sides of the cooling chamber (1). A mounting plate (2) is provided in the middle of the cooling chamber (1). Two positioning posts (6) for inserting into the engine connecting rod holes are fixedly connected to the upper end of the mounting plate (2). A pressing plate (11) is provided between the two positioning posts (6). The upper ends of the pressing plate (11) are hinged with linkage rods (17) that control its position and height. The upper ends of the two linkage rods (17) are hinged with horizontally movable blocks (8). A double-headed electric push rod (10) is fixedly connected between the two movable blocks (8). The left movable block (8) has a connecting cavity inside. An impact plate (13) is inserted into the left side of the movable block (8). An adjusting screw (14) is threadedly connected to the right side of the movable block (8). A drive motor is fixedly connected to the upper inner wall of the cooling chamber (1), and a drive cam (9) is fixedly connected to the power output end of the drive motor. A guide block (12) for controlling the vibration of the engine connecting rod is provided on the side end of the drive cam (9).
2. The air cooling device for engine connecting rod machining according to claim 1, characterized in that: The main body of the mounting plate (2) is a U-shaped structure, and a groove is formed in the middle of the mounting plate (2). The two positioning posts (6) are located on both sides of the groove.
3. The air cooling device for engine connecting rod machining according to claim 1, characterized in that: The left side of the mounting plate (2) is fixedly connected to an extrusion protrusion (4), which is a hemispherical structure. The inner wall of the cooling chamber (1) is provided with a control button (5), which is connected to a double-headed electric push rod (10) and a drive motor. Both sides of the lower end of the mounting plate (2) are provided with conveyor rollers (3) driven by chains.
4. The air-cooled cooling equipment for engine connecting rod processing according to claim 1, characterized in that: The lower end of the pressing plate (11) is fixedly connected with at least four pressing protrusions (15). The side ends of the pressing protrusions (15) are arc-shaped, and the lower end of the pressing protrusions (15) abuts against the engine connecting rod.
5. The air cooling apparatus for machining of an engine connecting rod according to claim 1, characterized in that: At least one heat sink (16) is fixedly connected to both sides of the upper end of the pressing plate (11), and the heat sink (16) is located at the side end of the linkage rod (17).
6. The air cooling apparatus for machining of an engine connecting rod according to claim 1, characterized by: The impact plate (13) has a T-shaped structure, and a spring is provided between the impact plate (13) and the inner wall of the connecting cavity. The top of the adjusting screw (14) has a spherical structure.
7. The air cooling apparatus for machining of an engine connecting rod according to claim 1, characterized in that: The side end of the impact plate (13) is fixedly connected to a guide block (12), the side end of the guide block (12) is an inclined structure, and the guide block (12) is directly opposite the drive cam (9).