Rodless Cylinder is a key shift drive component in large mechanical equipment, such as well repair machines or other heavy equipment. It realizes the mechanical shifting operation through precise air pressure control and is an important component to ensure the normal operation and efficient operation of the equipment. This article will introduce in detail the working principle of the eight-position shift cylinder and its application in mechanical equipment.
1. Structure and working principle of rodless cylinder
Rodless cylinders are usually composed of cylinder body, piston, seal, control valve and connecting rod. There are multiple grooves in different positions inside the cylinder body, and the piston can move in these grooves. The position of the piston determines the output of the cylinder, thereby controlling the mechanical shifting action. The control valve is connected to the piston and drives the piston to the predetermined position through hydraulic or air pressure.
When the shift command is issued, the shift valve changes the hydraulic or air pressure flow direction according to the control signal. The hydraulic or air pressure pushes the piston in the eight-position shift cylinder. The piston moves to a specific position in the cylinder, causing the mechanical parts connected to it to move, and the transmission gear shift is realized. In this process, the logical combination movement of the stop ring and the piston in the shift cylinder plays a vital role.
II. Application of rodless cylinders
Rodless cylinders are widely used in large mechanical equipment that requires precise shift control. In heavy equipment such as well repair machines, the eight-position shift cylinder controls the oil inlet and outlet of the hydraulic clutches of each gear of the hydraulic transmission, thereby controlling the clutch state of each gear clutch and realizing the shift of the hydraulic transmission. This not only improves the shifting accuracy and stability of the equipment, but also greatly extends the service life of the equipment.
III. Maintenance and care of rodless cylinders
In order to ensure the normal operation of rodless cylinders, they need to be maintained and serviced regularly. This includes checking the sealing performance of the shift cylinder and the shift valve to ensure no leakage; cleaning the control valve and related pipelines to prevent oil contamination from causing control failure; checking the matching of the piston and the cylinder wall to avoid seal failure due to wear, etc. In addition, it is necessary to regularly replace the filters in the hydraulic oil or air pressure system to ensure the cleanliness of the system, and to regularly calibrate the shift valve to ensure accuracy and response speed during shifting.