How to optimize the structure of non-standard hydraulic cylinders

Non-standard hydraulic cylinders are an important factor to promote the development of heavy hydraulic presses. Its design principles and related technical issues have obtained the synchronous control strategy of the hydraulic system and applied the control to the interval system.

According to the shortcomings of the current cylinder application, using the application practice of the dynamic characteristics of the hydraulic system, for the existing shield propulsion system, the pressure in the hydraulic cylinder in the regional control zone is synchronized, and the actual understanding is carried out to obtain the coordinated control of the flow synchronization. Method and application results show that its flow synchronization control can control the synchronization error within 3 mm.

Nowadays, under the gradual load of non-standard hydraulic cylinders, pressure synchronization can maintain good characteristics, but synchronization has a great impact on sudden loads. Flow synchronization can maintain excellent characteristics for sudden applications, but has some energy loss. Its on-off valve control The hydraulic cylinder adopts application practice. On this basis, the software is used to actually and optimize its dynamic characteristics, which plays an important role in the design of the actual hydraulic system.

By understanding the total application of hydraulic system actuators, the friction force expression parameters are developed, and the friction force of the non-standard hydraulic cylinder is divided into two parts to increase the friction force and constant friction force, and add the concept of friction force and its coefficient and theoretical equations , Designed a simple and feasible experimental measurement method, developed a dynamic application practice for the actual valve-controlled non-standard hydraulic cylinder system, and optimized the dynamic characteristics of the system. Practice provided for the design of components and systems, as well as structural optimization. Important reference.