A mechanical press clutch lubrication system

Abstract

The invention relates to a clutch lubrication system of a mechanical press, comprising a clutch, an oil mist supply mechanism, an air intake air path and an exhaust air path. The oil mist supply mechanism provides oil mist; one end of the air intake path communicates with the oil mist supply mechanism, It communicates with the piston cavity through the clutch shaft and flywheel in turn; one end of the exhaust air path communicates with the piston cavity, and the other end communicates with the exhaust end through the clutch shaft, and the air intake path and the exhaust air path do not overlap. The existing lubricating system adopts the same channel design for the air intake and exhaust, resulting in poor oil mist circulation, resulting in low oil mist concentration at the sealing ring, and the sealing ring is still severely worn. The non-overlapping technical structure of the air and gas paths realizes the circulation of oil mist in the clutch cavity, effectively lubricates the sealing ring for a long time, and reduces the wear of the sealing ring. Equipped with intelligent detection means, it realizes the intelligent measurement and control lubrication of the clutch sealing ring, prolongs the service life of the clutch, and has high reliability and environmental protection.

Description

Technical field: [0001] The invention relates to the technical field of forging machine tools, in particular to a lubricating system for a mechanical press clutch. Background technique: [0002] The clutch is one of the main components of a mechanical press. At present, the interior of the existing clutch mainly adopts a piston-type technical structure with a sealing ring. Through the cooperation of air pressure, sealing ring, piston, spring and other components, the on-off action of the clutch is controlled to realize the connection action of the entire transmission system. The clutch and the brake adopt the pneumatic interlocking control method. When the press stroke is opened, the electromagnetic double valve and the two-position three-way electromagnetic valve act simultaneously, and the compressed air quickly enters the brake through the double valve to disengage the brake disc, and then the clutch is ventilated to drive the transmission. When the mechanism is running ...

AI Technical Summary

Problems solved by technology

[0003] When the mechanical press and the automatic feeding of the robot are operated in a single stroke state, the clutch needs to be frequently engaged and disengaged. With long-term and high-frequency operation, the sealing ring on the clutch piston will wear out rapidly due to lack of lubricating oil. When the wear reaches a certain level, air leakage will occur, causing the clutch torque to decrease, causing the clutch of the mechanical press to slip, resulting in insufficient punching force of the slider and resulting in waste products, and it is also difficult to reset the slider after the clutch slips

[0004] In order to improve the lubrication of the clutch piston seal ring, attempts have been made in the prior art, and the currently generally adopted scheme includes a pressure tank, a lubricator and a passage for lubricating the piston seal ring, which simultaneously serves as the intake passage and exhaust passage of the clutch. The air channel, that is, the air intake and exhaust share the same channel. Although the above solution improves the lubrication effect to a certain extent, the lubrication effect is not good

The root cause of the poor lubricating effect of the above scheme is that the air intake and the air outlet share the same channel, and the gas with a high concentration of oil mist pushes the gas with a low oil mist concentration inside the channel to move forward during the intake, which will cause Dispersion of the oil mist; when the gas returns to the original path when exhausting, the gas with a high concentration of oil mist will be discharged first, which will cause the oil mist to not circulate effectively in the clutch cavity, and the oil mist will not circulate smoothly for a long time , it will cause low oil mist concentration at the sealing ring inside the clutch, and insufficient lubrication at the sealing ring, which will aggravate the wear of the sealing ring, which will seriously affect the working effect and service life of the clutch, and reduce the accuracy and stability of the machine tool

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