Lubricating mechanism for balance cylinder of die forging machine

Abstract

The utility model provides a lubricating mechanism for a balance cylinder of a die forging machine, which relates to the technical field of mechanical part lubrication and comprises a cylinder body, a piston rod, a piston block, a sealing ring, an oil storage tank, an oil inlet, a sealing cover, a through groove, a filter screen, an oil guide groove and a through hole. The oil accumulation groove is located between the two sealing rings, an oil gap exists between the outer surface of the piston block between the two sealing rings and the inner wall of the cylinder body, an oil way communicated with the oil accumulation groove is arranged on the inner side of the piston block, and one through hole in the piston rod is communicated with the oil way. The other through hole in the piston rod is connected with the oil storage tank through the telescopic pipe, more lubricating oil can be stored at a time through the independently-arranged oil storage tank, so that the oil adding frequency is reduced, in the process of adding the lubricating oil into the oil storage tank, the balance cylinder and the die forging machine can still be used continuously, and the service life of the balance cylinder is prolonged. And normal processing is ensured.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts lubrication technology, specifically a lubrication mechanism for a balance cylinder of a die forging machine. Background Technology

[0002] The balance cylinder is an important functional component of a pneumatic forging machine. Its function is to buffer movement and prevent the slide from sliding abnormally during the operation of the pneumatic forging machine, thus providing a corresponding safety function. The balance cylinders of pneumatic forging machines on the market are generally prone to air leakage and even cylinder wall scoring. The main reason for this phenomenon is that the lubrication between the piston and the cylinder wall of the traditional pneumatic forging machine balance cylinder is carried out by manual periodic oiling. Since the amount of oil added at one time is limited by manual oiling, and both the balance cylinder and the forging machine must be stopped during the manual oiling process, the effective utilization rate of the forging machine is reduced. Utility Model Content

[0003] The purpose of this invention is to provide a lubrication mechanism for a balance cylinder of a forging machine, which aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: The lubrication mechanism for the balance cylinder of the forging machine includes a cylinder body, a piston rod, a piston block, and sealing rings. Two sealing rings are symmetrically arranged on the outer surface of the piston block. The piston block is mounted on the piston rod, and the piston rod drives the piston block and piston rings to move inside the cylinder body. It also includes an oil reservoir located outside the cylinder body. An oil inlet is provided at the upper end of the oil reservoir, and a cap is threaded onto the oil inlet. A through groove is formed at the upper end of the cap, and the inner surface of the through groove... The piston rod is equipped with a filter screen. An oil guide groove is located inside the piston rod. Two through holes, each communicating with one end of the oil guide groove, are located on the outer surface of the piston rod. An oil accumulation groove is formed on the outer surface of the piston block between two sealing rings. An oil gap exists between the outer surface of the piston block and the inner wall of the cylinder between the two sealing rings. An oil passage, communicating with the oil accumulation groove, is located on the inner side of the piston block. One of the through holes on the piston rod communicates with the oil passage, and the other through hole on the piston rod is connected to the oil reservoir via a retractable telescopic tube.

[0005] Preferably, an electric heating plate is provided on the outer side of the cylinder body, and the oil storage tank is located on one side of the electric heating plate.

[0006] Preferably, the outer surface of the oil storage tank is provided with an observation window.

[0007] Preferably, the inside of the oil collection tank is provided with oil-retaining cotton.

[0008] The beneficial effects of this utility model are:

[0009] A separate oil reservoir can store a larger amount of lubricating oil at once, thereby reducing the frequency of refueling. Furthermore, the balance cylinder and forging machine can continue to be used while lubricating oil is being added to the reservoir, ensuring normal processing. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0011] Figure 2 This is a front view of a specific embodiment of the present invention.

[0012] Figure 3 This is a schematic diagram of the internal structure of the cylinder block.

[0013] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0014] In the diagram: 1. Cylinder block; 2. Piston rod; 3. Piston block; 4. Piston ring; 5. Oil reservoir; 6. Cover; 7. Filter screen; 8. Oil guide groove; 9. Through hole; 10. Oil collection groove; 11. Oil passage; 12. Telescopic pipe; 13. Electric heating plate; 14. Observation window; 15. Oil storage cotton. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0016] like Figure 1-4 As shown, a lubrication mechanism for a balancing cylinder of a forging machine includes a cylinder body 1, a piston rod 2, a piston block 3, and sealing rings. Two sealing rings are symmetrically arranged on the outer surface of the piston block 3. The piston block 3 is mounted on the piston rod 2. The piston rod 2 drives the piston block 3 and piston rings 4 to move inside the cylinder body 1. The mechanism also includes an oil reservoir 5 located outside the cylinder body 1. The upper end of the oil reservoir 5 has an oil inlet, and a cap 6 is threadedly connected to the oil inlet. The upper end of the cap 6 has a through groove, and a filter screen 7 is installed inside the through groove. The piston rod 2 is provided with an oil guide groove 8. The outer surface of the piston rod 2 is provided with two through holes 9 that are respectively connected to the two ends of the oil guide groove 8. The outer surface of the piston block 3 is provided with an oil accumulation groove 10, which is located between two sealing rings. There is an oil gap between the outer surface of the piston block 3 and the inner wall of the cylinder 1 between the two sealing rings. The inner side of the piston block 3 is provided with an oil passage 11 that is connected to the oil accumulation groove 10. One of the through holes 9 on the piston rod 2 is connected to the oil passage 11. The other through hole 9 on the piston rod 2 is connected to the oil reservoir 5 through a telescopic tube 12.

[0017] The inside of the oil reservoir 5 is used to store lubricating oil. By unscrewing the cap 6, lubricating oil can be added to the oil reservoir 5. After the lubricating oil is added, the cap 6 is screwed back onto the oil reservoir 5. The filter screen 7 on the cap 6 can prevent external dust and impurities from entering the oil reservoir 5, while not affecting the entry of external air into the oil reservoir 5, so that the lubricating oil in the oil reservoir 5 can be used.

[0018] When the balance cylinder is installed on the forging machine, the base of the balance cylinder is located on top, and the cover 6 is located above the oil reservoir 5. Under atmospheric pressure, the lubricating oil in the oil reservoir 5 enters the oil guide groove 8 of the piston rod 2 through the telescopic pipe 12. The lubricating oil in the oil guide groove 8 enters the oil passage 11 of the piston block 3 through the through hole 9 on the piston rod 2. The lubricating oil in the oil passage 11 further enters the oil accumulation groove 10 of the piston block 3. When the piston rod 2 drives the piston block 3 to move up and down inside the cylinder body 1, the lubricating oil in the oil accumulation groove 10 will contact the inner wall of the cylinder body 1. Through the oil gap between the piston block 3 and the inner wall of the cylinder body 1, the lubricating oil can form an oil film in a certain area of ​​the inner wall of the cylinder body 1. When the piston ring 4 moves on the inner wall of the cylinder body 1, the friction between the piston ring 4 and the inner wall of the cylinder body 1 can be reduced through the lubrication of the oil film, which helps to protect the inner wall of the cylinder and ensure the normal use of the balance cylinder.

[0019] During the assembly of the balance cylinder, the lubricating oil needs to be filled with the oil guide groove 8 in advance, and the two piston rings 4 on the piston block 3 can prevent the lubricating oil located between the two piston rings 4 from leaking to the outside of the piston rings 4.

[0020] Furthermore, an electric heating plate 13 is provided on the outer side of the cylinder 1, and an oil storage tank 5 is located on one side of the electric heating plate 13. When the temperature of the lubricating oil in the oil storage tank 5 is at a low level, its fluidity will be poor, which will affect the delivery of the lubricating oil to the oil collection tank 10. The lubricating oil in the oil storage tank 5 can be heated by the electric heating plate 13 to maintain a certain fluidity so that the lubricating oil can enter the oil collection tank 10 normally.

[0021] Furthermore, an observation window 14 is provided on the outer surface of the oil reservoir 5 to facilitate observation and understanding of the remaining amount of lubricating oil in the oil reservoir 5, and to facilitate timely addition of lubricating oil to the oil reservoir 5.

[0022] Furthermore, the oil collection tank 10 is equipped with an oil storage cotton 15, which can store a certain amount of lubricating oil. This prevents the lubricating oil in the oil storage tank 5 from being consumed too much and unable to reach the oil collection tank 10. The lubricating oil in the oil storage cotton 15 can still coat the inner wall of the cylinder 1 with an oil film.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A lubrication mechanism for a balance cylinder of a forging machine, characterized in that, The system includes a cylinder block, piston rod, piston block, and sealing rings. Two sealing rings are symmetrically arranged on the outer surface of the piston block. The piston block is mounted on the piston rod, and the piston rod drives the piston block and piston rings to move inside the cylinder block. It also includes an oil reservoir located outside the cylinder block. The upper end of the oil reservoir has an oil inlet, and a cap is threaded onto the oil inlet. The upper end of the cap has a through groove, and a filter screen is installed inside the through groove. The piston rod has an oil guide groove inside, and two through holes on its outer surface that communicate with the two ends of the oil guide groove. The outer surface of the piston block has an oil accumulation groove located between the two sealing rings. An oil gap exists between the outer surface of the piston block and the inner wall of the cylinder block between the two sealing rings. An oil passage is provided on the inner side of the piston block, communicating with the oil accumulation groove. One through hole on the piston rod communicates with the oil passage, and the other through hole on the piston rod is connected to the oil reservoir via a retractable telescopic tube.

2. The lubrication mechanism for the balance cylinder of a forging machine according to claim 1, characterized in that, An electric heating plate is provided on the outside of the cylinder body, and the oil storage tank is located on one side of the electric heating plate.

3. The lubrication mechanism for the balance cylinder of a forging machine according to claim 1, characterized in that, An observation window is provided on the outer surface of the oil storage tank.

4. The lubrication mechanism for the balance cylinder of a forging machine according to claim 1, characterized in that, The oil collection tank is equipped with oil-retaining cotton.

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