0120004268 Research on Impedance Control of Pile Driver Load Simulator c, S., Sato, R., J. 7 and Prof. lecture series. 1998.79,81 When vibrating with a vibrator, due to the different characteristics of the soil, it has a greater impact on the piling operation. Spring shock absorbers were studied using load simulators. The combined system of mass loads completes the evaluation of the vibrator characteristics in the test chamber. The device adopts hydraulic cylinder 1 degree of freedom for impedance control, realizing hitting and machine load simulation. 82 620004269 Vibration Characteristics of Hydraulic Motors with Two Eccentric Rotors, Ryoichi Sato, K.Kyu 7 K., K., K., K. and K., Lectures, Speeches, Symposium 1998 With the requirement of environmental protection, the vibration pile driver must avoid the resonance between the super-accumulation frequency and the foundation. . Using two hydraulic motors equipped with eccentric rotors as objects, we studied how to avoid the resonance generated by the rise and fall movement of the eccentric rotor and the foundation. The vibration amplitude is zero. To discuss the design and practice of vibration-reinforced concrete mixing plant with vibration frequency and amplitude variation, Zhong Lichao construction machinery. 1999, 126. The characteristics of the 2550 concrete mixing plant were analyzed, and it was found that during the work cycle, there was an empty operation. Introduce the use of 12550's idle time, change the structure, adjust the cycle, that is, in the layout of the layout and host selection without changing the premise of improving the basic idea of ​​the productivity of the mixing station. This article describes the specific design considerations and practices for the development of 142575 from Day 2550. GJ20004272 Manual Disposal Design and Development Magazine, Zhong Shu Guo Ju Construction Machinery. The impact caused by the mechanism, the mechanism, and the simultaneous control of the angular speed and relative angle of the two eccentric rotor hydraulic motors. Through experiments, we have found out the effect of the vibration of the vibration part on the eccentric rotor speed. The 9-seat 1 Nanying patent is a kind of machine based on the German patent 3833882. An intermediate member made of an elastic material is provided between the pile driver housing and the pipe that moves the impact piston to mitigate the impact. The main disadvantage of the original pile driver is that the intermediate member is fixed on the housing and the conduit, the structure is complicated, and the strength of the vent hole is weakened due to the vent hole. The new patent was proposed to overcome this shortcoming. The middle member is a thick-walled bushing. In order to fix it on the shell, a corresponding annular groove is provided on the inner surface of the shell, the end of the catheter has a shoulder, the end of the middle member is supported on the annular groove, and the other end is fixed by a flange on the sleeve. The connecting sleeve is threaded on the shoulder and the end is connected to the venting sleeve. Zhou Wei Guo Wei Machinery introduced the work principle of the new product of the Zhonglian Company. Structural composition characteristics and the selection of key parameters. GJ20004273 concrete mixer truck 0 person 0 system, Zhong Wei Junmin, construction machinery. Explain the content, design essentials and requirements of the design of the mixing drum of the concrete mixer truck; analyze the mixer drum, six, the operation flow of the system and the functions and features of the system. 2 Ref. 3 020004274 Technical Adaptability of Concrete Pumps, Zhong Wuhong Construction Mechanization. Fiberglass Grinding Wheel Mesh Grinding Fiberglass,High Strength Fiberglass,Grinding Wheel For Fiberglass,Fiberglass Grinding Wheel Mesh Shandong Fiberglass Group Corp. , https://www.en-glasstex.com