a cylinder

Abstract

The invention discloses an oil cylinder. In order to solve the problem that the two ends of the piston of the traditional oil cylinder are prone to hydraulic oil leakage, an oil cylinder structure with side-by-side double piston chambers and four working chambers is proposed. Two working chambers located in the middle The cavity is connected to the oil circuit for driving in and out of the hydraulic oil, and the primary seal is realized through the added oil seal and wear-resistant ring, while the other two working chambers can be set as cavities, or other components can be set, and An oil seal and a wear-resistant ring are added again to achieve a secondary seal, so that even if the two working chambers connected to the oil circuit have a hydraulic oil leakage problem similar to that of a traditional oil cylinder during the use of the cylinder, the working chambers at both ends can also play a role. The function of secondary leakage prevention, so as to avoid the leakage of hydraulic oil, the part of the piston rod protruding from the cylinder will not contain hydraulic oil, and a series of problems after hydraulic oil leakage will not occur.

Description

technical field [0001] The invention belongs to the technical field of machine tool equipment, and in particular relates to an oil cylinder. Background technique [0002] The traditional cylinder structure such as image 3 As shown, it includes a large piston 600, a connecting rod 601, a cylinder body 602, an end cover 603, an oil inlet chamber 604, and an oil return chamber 605. The cylinder body 602 is provided with a piston cavity for installing the large piston 600, and the large piston 600 connects the piston The chamber is divided into an oil inlet chamber 604 and an oil return chamber 605. The circulation of the hydraulic oil through the oil inlet chamber 604 and the oil return chamber 605 pushes the piston to move, and the large piston 600 drives the connecting rod 601 to move. In order to avoid the oil inlet chamber 604 and the hydraulic oil in the oil return chamber 605 leaks, between the large piston 600 and the cylinder body 602, between the end cover 603 and the...

AI Technical Summary

Problems solved by technology

[0002] The traditional cylinder structure such as image 3 As shown, it includes a large piston 600, a connecting rod 601, a cylinder body 602, an end cover 603, an oil inlet chamber 604, and an oil return chamber 605. The cylinder body 602 is provided with a piston cavity for installing the large piston 600, and the large piston 600 connects the piston The chamber is divided into an oil inlet chamber 604 and an oil return chamber 605. The circulation of the hydraulic oil through the oil inlet chamber 604 and the oil return chamber 605 pushes the piston to move, and the large piston 600 drives the connecting rod 601 to move. In order to avoid the oil inlet chamber 604 and the hydraulic oil in the oil return chamber 605 leaks, between the large piston 600 and the cylinder body 602, between the end cover 603 and the connecting rod 601, and between the cylinder body 602 and the connecting rod 601, there are oil seals for preventing oil leakage. However, due to work wear or its own sealing performance, the sealing effect of the oil seal is not enough to exert the sealing effect, and the hydraulic oil will still leak to the surface of the connecting rod 601, and leak from both ends with the movement of the connecting rod 601. In equipment with high precision requirements, the leaked hydraulic oil will contaminate the optical detection components, thereby affecting the detection results of related detection devices and causing misjudgment, and then issuing wrong instructions, affecting the normal operation of the equipment

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