Gas ring pushing mechanism

Abstract

The utility model relates to a gas ring pushing mechanism which comprises a push rod driven by a servo motor, a pressing rod is arranged at the front end of the push rod and movably connected with the push rod through a pin shaft, an air cylinder enabling the ring pushing end of the pressing rod to tilt is arranged on the push rod, and a spring enabling the ring pushing end of the pressing rod to press downwards is arranged between the pressing rod and the push rod. According to the utility model, the gas rings positioned on two table surfaces with different heights can be simultaneously pushed into the piston ring assembling device, so that the full-automatic production of assembling the gas rings on the piston is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of piston ring installation in engines, and in particular to a piston ring push mechanism. Background Technology

[0002] Piston rings are a core component inside a fuel-fired engine. Together with the cylinder, piston, and cylinder walls, they seal the fuel-air mixture. Typically, piston rings are installed in the ring grooves of the piston, forming a chamber with the piston, cylinder liner, and cylinder head to perform the work.

[0003] The primary function of the piston rings is to seal the gap between the piston and the cylinder wall, preventing the high-temperature, high-pressure gas from leaking into the crankcase. Simultaneously, it conducts most of the heat from the piston head to the cylinder wall, which is then carried away by the cooling system. The piston rings also distribute splashed or sprayed oil evenly across the cylinder wall, providing lubrication. In automated piston ring assembly, a piston ring pusher mechanism is needed to push the piston rings into the piston ring assembly. Since a double piston ring seal is typically used between the piston and cylinder wall, existing pusher devices (such as patent CN202322781587.1) can only push one piston ring at a time, affecting the installation efficiency. Summary of the Invention

[0004] The problem to be solved by this utility model is to provide a gas ring pushing mechanism that can meet the requirement of simultaneously pushing two gas rings into the piston ring assembly device.

[0005] The technical solution provided by this utility model is: a gas ring pushing ring mechanism, including a push rod driven by a servo motor, a pressure rod provided at the front end of the push rod, the pressure rod being movably connected to the push rod through a pin, a cylinder provided on the push rod to tilt the end of the pressure rod pushing the ring, and a spring provided between the pressure rod and the push rod to press the end of the pressure rod pushing the ring downward.

[0006] The pressure rod is shaped like a "┌", including a horizontal push ring rod and a vertical pressure rod. The pin is located at the intersection of the push ring rod and the pressure rod. The inner side of the pressure rod is connected to the push rod by a compression spring, and the outer side of the pressure rod contacts the piston rod extending from the cylinder. The pressure rod is located above the front end of the push rod, and there is a gap between the pressure rod and the front end of the push rod.

[0007] The front end of the push rod is stepped.

[0008] The width of the pressure rod is slightly smaller than the opening width of the air ring.

[0009] The lower front end of the push ring rod has a chamfer for guidance.

[0010] This invention can simultaneously push the gas rings located on two platforms at different heights into the piston ring assembly device, which facilitates the full automation of piston assembly gas ring production. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model installed in a double-air-ring hopper.

[0012] Figure 2 This is a schematic diagram of the structure of the gas ring pusher mechanism of this utility model.

[0013] Figure 3 for Figure 2 Enlarged cross-sectional view of the central AA section. Detailed Implementation

[0014] See Figures 1-3 The present invention includes a push rod 4 driven by a servo motor. The front end 4.1 of the push rod is provided with a pressure rod 5. The pressure rod 5 is movably connected to the push rod 4 through a pin 12. The push rod 4 is provided with a cylinder 10 that causes the push ring end of the pressure rod 5 to tilt up. A spring 11 is provided between the pressure rod 5 and the push rod 4 to press down the push ring end of the pressure rod.

[0015] The pressure rod 5 is shaped like a "┌", comprising a horizontal push ring rod portion 5.1 and a vertical pressure rod portion 5.2. A pin 12 is positioned at the intersection of the push ring rod portion 5.1 and the pressure rod portion 5.2. The inner side of the pressure rod portion is connected to the push rod 4 via a compression spring 11, and the outer side of the pressure rod portion contacts the piston rod extending from the cylinder 10. The pressure rod portion is located above the front end of the push rod, and a gap exists between the pressure rod portion and the front end of the push rod. The lower front end of the push ring rod portion 5.1 has a guide chamfer 5.1.1 to facilitate the entry of the two air rings into the gap.

[0016] The front end 4.1 of the push rod is stepped (or "convex").

[0017] The width of the pressure rod is slightly smaller than the opening width of the air ring.

[0018] The working process of this utility model is as follows: One gas ring and two gas rings (for example, multiple gas rings 6 are placed in gas ring hopper 1 and gas ring hopper 2, with the openings of the two gas rings facing forward and the opening of the first gas ring facing backward) are placed on platforms 7 and 8, where the height difference is equal to the height difference of the two gas ring grooves of the piston. The pusher 9 pushes the T-shaped push rod 3, pushing the inner side of the lowest gas ring in hopper 2 at the rear large end of the T-shaped push rod, and pushing the outer side of the lowest gas ring in hopper 1 at the front large end of the T-shaped push rod. Simultaneously, one of the lowest gas rings in hoppers 1 and 2 is pushed out. The pushed-out gas ring 6, due to gravity, falls onto the partition plate 7 and the base plate 8 respectively through the gas ring holes on the support plate. Platforms 7 and 8 are equipped with the pushing ring mechanism of this utility model. During pushing, the cylinder 7 extends its piston rod to press the pressure rod 5, causing the front end of the pressure rod 5 to tilt upward. The first and second air rings 6 are supported by a certain height difference (equal to the height difference between the two air ring grooves of the piston) in the air ring hopper. The opening of the lower air ring (the second air ring) faces forward, and the opening of the upper air ring (the opening of the first air ring) faces backward. When the push rod 4 is driven forward by the servo motor, the lower air ring enters the gap under the pressure rod 5 (located at the stepped notch at the front end of the push rod). The cylinder 10 retracts the piston rod, and the spring 11 pushes the pressure rod 5 to rotate around the pin 12, thereby pressing the lower air ring. As the push rod 4 moves forward, the lower air ring is pushed below the upper air ring, and the opening of the upper air ring enters the pressure rod 5. In this way, the lower air ring is pressed, and the opening of the upper air ring is blocked by the pressure rod 5. During the process of pushing the first and second air rings 6 forward, the first and second air rings 6 can be prevented from rotating.

[0019] During the above process, when push rod 4 moves forward, it will first encounter the second air ring. At this time, cylinder 10 in push rod 4 retracts, spring 11 drives pressure rod 5 to press the second air ring, push rod 4 pushes the second air ring to continue moving forward, to the position of the first air ring, and pushes the first air ring forward together into the ring-separating mechanism of the piston ring mounting device.

Claims

1. A gas ring pushing mechanism, characterized in that: It includes a push rod driven by a servo motor, a pressure rod at the front end of the push rod, the pressure rod being movably connected to the push rod via a pin, a cylinder on the push rod for raising the pressure rod push ring end, and a spring between the pressure rod and the push rod for pressing down the pressure rod push ring end.

2. The gas ring pushing mechanism according to claim 1, characterized in that: The pressure rod is "┌" shaped, including a horizontal push ring rod and a vertical pressure rod. The pin is located at the intersection of the push ring rod and the pressure rod. The inner side of the pressure rod is connected to the push rod by a compression spring, and the outer side of the pressure rod contacts the piston rod extending from the cylinder. The pressure rod is located above the front end of the push rod, and there is a gap between the pressure rod and the front end of the push rod.

3. The gas ring pushing mechanism according to claim 2, characterized in that: The front end of the push rod is stepped.

4. The gas ring pushing mechanism according to claim 2, characterized in that: The width of the pressure rod is slightly smaller than the opening width of the air ring.

5. The gas ring pushing mechanism according to claim 2, 3, or 4, characterized in that: The lower front end of the push ring rod has a chamfer for guidance.

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