Self-propelled Boom Lift new full hydraulic self-propelled special chassis. The self-propelled high-altitude operation lifting platform vehicle with completely independent intellectual property rights has successfully developed a fully hydraulic driven, self-propelled special chassis by adopting electromechanical and hydraulic integration, reliability design and computer-aided design technologies, breaking through the previous limitation that domestic high-altitude operation lifting platform vehicles can only be modified with automobile or crane chassis.
Unique three-dimensional rotary lifting device. The designed three-dimensional rotary lifting device can not only automatically maintain the posture of the lifted material, but also realize the adjustment requirements of the lifted material at any height, position and direction in the space. The speed control is accurate and sensitive, and the micro movement performance is good, which meets the requirements of high-altitude operation and ventilation pipe installation in large-scale caverns.
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With load driving and good operation stability. The chassis structure breaks through the traditional design theory and method, and reduces the center of gravity offset by optimizing the overall layout and load distribution of the upper platform. The unique large angle rear hinge structure is adopted, and a variety of counterweight modules are reasonably arranged to effectively balance the working torque. The H-shaped variable cross-section composite box girder rigid frame and high load solid rubber tire are adopted to increase the overall rigidity of the chassis, ensure the stability of the whole machine during driving and operation, and realize the function of the high-altitude operation lifting platform vehicle with load.
A multifunctional and multipurpose working device. Through the boom front-end bracket, the lifting device or manned platform can be quickly installed to realize the functions of material lifting, lifting and manned high-altitude operation, and provide an interface for the expansion of the working device and the rapid switching of various working devices.
Solenoid valve main features and application of knowledge
The main features of the solenoid valve (1) leakage block, internal leakage easy to control, the use of safety. Internal and external leaks are elements that endanger safety. Other self-control valve stem usually stick out by the electric, pneumatic, hydraulic actuator control spool rotation or movement. This must solve the long-term action of the valve stem seal leakage problem; only the electromagnetic valve is the role of electromagnetic force sealed in the magnetic separation within the sleeve to complete the core, there is no dynamic seal, so easy to block leakage. Electric valve torque control is not easy, prone to internal leakage, and even pulled off the stem head; structure of the solenoid valve easy to control the internal leakage until it drops to zero. Therefore, the use of special safety solenoid valve, especially for corrosive, toxic or high temperature medium. (2) The system is simple, then the computer, low prices Qian. Solenoid valve itself is simple, the price is low, compared to other types of actuators such as regulating valve easy to install and maintain. Even more remarkable is the composition of the control system is much simpler, the price is much lower. As the solenoid valve is the switch signal control, and industrial computer connection is very convenient. In today's popularization of computers, the price plummeted era, the advantages of the solenoid valve even more pronounced. (3) action express delivery, power is small, lightweight appearance. Solenoid valve response time can be as short as a few milliseconds, even the pilot solenoid valve can be controlled within a few tens of milliseconds. Since the self loop, more responsive than other self-controlled valves. Well-designed solenoid valve coil power consumption is very low, is an energy-saving products; can also be done only trigger action, automatically maintain the valve position, usually do not consume electricity. Solenoid valve small size, saving space, but also lightweight and beautiful. (4) regulation accuracy is limited, the applicable medium is limited. Solenoid valve usually only switch two states, the spool can only be in two extreme positions, can not be adjusted continuously (trying to break a lot of new ideas, but are still in the trial stage of the trial) so the regulation accuracy is subject to certain restrictions. Solenoid valve on the media have a higher cleanliness requirements, including granular media can not be applied, in the case of impurities must be filtered out. In addition, viscous media do not apply and the range of medium viscosities for a particular product is relatively narrow. (5) Model variety, wide range of uses. Although solenoid valve inherent deficiencies, the advantages are still very prominent, so it is designed into a wide range of products to meet a variety of different needs, the use of a very wide range. Solenoid valve technology is also progress around how to overcome the inherent deficiencies, how to better play its inherent advantages and expand.