30results about How to "Small load change" patented technology

In order to solve the problems that the good material crushing effect and cleaning easiness of an existing soybean milk machine can not be achieved at the same time, and the uniformity of the crushing effect is difficult to guarantee, the invention provides a soybean milk machine with a small-space crushing cover. According to the soybean milk machine, the unsealed small-space crushing cover is arranged on the lower portion of a lower cover of a machine head, a cutter body is located inside the unsealed small-space crushing cover, the cutter body is provided with a water pumping part which enables water in a cup body to move towards the unsealed small-space crushing cover in the rotating process, the unsealed small-space crushing cover is provided with at least one bottom feed port and a plurality of discharge ports, and the maximal permission passing size of materials on the discharge ports is smaller than the original size of materials to be crushed. According to the soybean milk machine with the small-space crushing cover, material crushing is divided into the two phases of small-space concentrated crushing and cyclic crushing, the material crushing effect is made to be greatly improved, the uniformity of the crushing effect is guaranteed, meanwhile, the small-space crushing cover can be conveniently cleaned, and the problem that the good material crushing effect and cleaning easiness can not be achieved at the same time is solved.

The invention relates to a cloud computing resource allocation method supporting sudden emergency. The method comprises the steps that 1, user resource application information including user priority,urgency degree of resource requirements, resource application quantity and configuration is acquired; 2, the user resource allocation priority is calculated; 3, resource information of a physical server is acquired; 4, the resource utilization rate of the physical server is calculated; 5, a multi-objective function with optimal performance matching of a virtual machine, shortest time provided bythe virtual machine and minimum total load change of a platform and a constraint condition are established; 6, a mapping relation of a virtual machine request and the physical server is established; 7, resource allocation is conducted. According to the cloud computing resource allocation method supporting the sudden emergency, the multi-objective function and the constraint condition are established, a multi-objective optimization algorithm is adopted for obtaining a solution set, a solution is selected as a mapping scheme, and optimal arrangement of the virtual machine can be achieved. Meanwhile, the allocation method has the function of supporting the sudden emergency and can preferentially allocate resources for sudden emergency users.

The invention belongs to the technical field of multi-axis linkage devices and particularly relates to a five-axis linkage type hybrid machine tool. The five-axis linkage type hybrid machine tool overcomes the shortcomings of traditional numerically-controlled machine tools and existing hybrid machine tools in the process of machining long and thin integral structural members. The five-axis linkage type hybrid machine tool comprises long and straight guide rails and a parallel module; the parallel module comprises a foundation platform, a movable platform and branch chains connected between the foundation platform and the movable platform; all the parts form a spatial parallel closed loop mechanism; the movable platform of the parallel module can realize two-dimensional movement in the XZ plane and two-dimensional rotation of a rotating shaft in the movable platform; the parallel module is installed on the long and straight guide rails in the Y axis direction, and an active driver enabling the parallel module to slide in the Y axis direction is additionally arranged in the Y axis direction. The five-axis linkage type hybrid machine tool integrates the advantages of traditional serially-connected machine tools and parallel machine tools, has the advantages that the work space is large, the rigidity and the accuracy are high, the drive load change is small in the Y axis direction, the dynamic performance is good, the re-configurability is high and the modularization degree is high and can realize five-axis linkage machining of the complex long and thin integral structural members.

A mobile crusher (2) is provided that can be displaced on four caterpillars and that includes a supporting frame (20), a large hopper (31), an apron conveyor (32), a sizer (34) and an intermediate conveyor (36) for use in strip-mining. The material is received by the shovel (1) of a shovel excavator or a wheel loader, is fed to the crusher (2), crushed and is then transferred onto a conveyor plant via a discharge conveyor system. The crusher (2) has to follow at the same cycle in which the shovel excavator moves forward during an advance in mining. In order to obtain a good maneuverability of the crusher (2), the two front caterpillars (22) are driven and can be steered like a two-caterpillar chassis. As the crusher (2) is subject to high loads, all components have to have a robust design. For this purpose, the individual functional groups are accommodated in a stable supporting frame (20). The crushed material is transferred onto a subsequent bench conveyor via an evolving conveyor directly connected to the mobile crusher (2), a transfer conveyor or a mobile bridge. The plant can be displaced while under full useful load.

The present invention provides a baseplate comprising a cylindrical hub, a flat flange, and one or two circular notches of a "V" or "U" shape etc. formed in said flange. This baseplate has the advantages of smaller deformation and larger retention torque during swage operation. Also it is easy to make and has no further cost in production. Moreover, the present invention further provides an arm and suspension assembly equipped with the baseplate and a hard disk drive equipped with the arm and suspension assembly.

The invention discloses a steel pipe fixture for pipe saw mills, which comprises an upper clamping plate (3), a lower clamping plate (4), a left clamping plate (5) and a right clamping plate (6). The steel pipe fixture is characterized in that: the surfaces of the upper clamping plate (3) and the lower clamping plate (4), which are contacted with steel pipes (2), are cambered, moreover, the two cambers are concentric, and the difference between the diameters of the two concentric cambers is the diameter of the clamped steel pipe (2). A saw disk can simultaneously saw each of the steel pipes in a row, the downstroke of the saw disk is shortened, the sawing time is shortened, the sawing efficiency is increased, meanwhile, from the beginning to the end of steel pipe sawing by the saw disk, the area of the row of pipes sawed by the saw disk is nearly unchanged, consequently, the load change of a sawing machine is little, the impact on the saw disk is little, tooth breaking can be reduced, and the service life of the saw disk can be prolonged.

The invention discloses an electrochemical polishing device and an electrochemical polishing method using the same. In the electrochemical polishing process, the calculation is performed according to the voltage change feedback of a power supply; the corresponding swing of a swing arm connected with a second nozzle is controlled according to the calculation result; and the position of the second nozzle relative to a first nozzle is adjusted along the edge of a wafer, so that the resistance in an electrical polishing loop is always kept in an original value state, the load change is low, the problem of difficult process control caused by polishing voltage change in the electrochemical polishing process can be prevented, the in-wafer uniformity after polishing is effectively improved, and the process interruption probability caused by high voltage is reduced.

The invention discloses an alternated fixed-bed residual oil hydrotreatment method and system. According to the method, a first hydropretreating reactor and a second hydropretreating reactor are in series connection to be served as online hydropretreating reactors, the first hydropretreating reactor is switched over and serves as a non-online hydropretreating reactor when pressure drop in the first hydropretreating reactor rises to a pressure drop design upper limit or the activity of a catalyst is lower than a required value, and then, switchover is carried out according to a sequence that the second hydropretreating reactor and a third hydropretreating reactor are connected in parallel, the third hydropretreating reactor and the first hydropretreating reactor are connected in parallel, and the first hydropretreating reactor and the second hydropretreating reactor are connected in series, so that the condition that two hydropretreating reactors are online simultaneously is achieved, and an uninterrupted hydropretreating reaction can be achieved. According to the method, the utilization efficiency of a main catalyst and the stability of device operation can be improved, and the operating time of a hydrotreating reactor is greatly prolonged.

The invention designs a control method of a microscope light source. Multiple power sources supply power to LEDs of different wavelengths. A dummy load and a high-speed changeover switch are added toan adjustment control circuit. When it is necessary to switch the light sources of different wavelengths, an LED constant-current and power supply circuit required to be turned off is switched to thedummy load, and an LED constant-current and power supply circuit required to be turned on is switched to the LED, thereby reducing the load variation of each constant-current circuit and a power supply, and further increasing the switching speed and improving the stability of the light source.

A deburring and chamfering tool, characterized in that: the tool has a bidirectional expansion-and-contraction mechanism configured from a first spring and a second spring; each of the first spring and the second spring has a spring constant K (N/mm) that satisfies the relationship K <= F0.H/delta L, where F0 is the standard setting load (N), H is the load change value (%), and delta L is the length-direction change value (mm); and H is 10% or less.

The invention relates to a processing system and a processing method for dealing with line electric leakage in direct current lighting power supply, the processing system for dealing with line electric leakage in a direct current lighting power supply system is composed of a direct current power supply cabinet, a power supply cable, a DC-DC driver and a lamp, and the DC-DC driver converts input direct current into voltage and current required by the lamp. The DC-DC driver comprises an MCU microprocessor, and an input voltage detection circuit, a PWM conversion circuit, a PWM control circuit, an input end fault feedback circuit and an output end fault feedback control circuit which are connected with the MCU microprocessor. Because the direct current system is sensitive in protection, overload protection of the direct current system is easily caused by line leakage, and a lamp is turned off. According to the invention, the DC-DC driver detects the input voltage, the output power is adaptively adjusted, and the load change of the DC power supply cabinet is reduced by reducing the load power of the lamp when the line leaks electricity, so that the overload protection probability of the DC power supply cabinet is greatly reduced.