摘要:
An electro-hydraulic drive system for a work machine which drives an upper rotary body by controlling a flow rate of a hydraulic fluid by a control valve, includes an electro-hydraulic pump including a hydraulic pump driven by an engine, and a first electric motor, and an electro-hydraulic motor including a hydraulic motor rotated by the hydraulic oil supplied from the electro-hydraulic pump, and a second electric motor, and a controller which determines an operating state of the first electric motor and an operating state of the second electric motor based on a load of the electro-hydraulic pump and a load of the electro-hydraulic motor, and is able to perform an efficient operation by using a hydraulic pressure (fluid pressure) and electric power.
摘要:
In drive control of an operating machine configured to drive a structure by a hydraulic motor configured to be driven by operating oil supplied from a hydraulic pump through a control valve and an electric motor configured to cooperate with the hydraulic motor, a speed command generated based on a manipulation amount of a remote control valve configured to determine an operation amount of the structure is subjected to speed feedback control performed based on an actual rotation speed of the hydraulic motor and pressure difference feedback control performed based on an operating oil pressure difference between a suction port and discharge port of the hydraulic motor.
摘要:
The present invention provides a small-size light-weight electric motor integrated hydraulic motor which is simple in configuration, integrally includes an electric motor and a hydraulic motor, and is capable of efficiently operating, by being configured such that: a swash plate type hydraulic motor and an electric motor driven by the swash plate type hydraulic motor are provided in one casing; the casing is filled with oil; a driving shaft of the swash plate type hydraulic motor is configured to extend from a front end portion of the casing up to a rear end portion thereof and be supported at the front and rear end portions of the casing; the swash plate type hydraulic motor and a rotor of the electric motor are provided in series at the driving shaft; and a stator of the electric motor is fixed to an inner side portion of the casing.
摘要:
An aspect according to the invention provides a method of producing an optical transmission component in which peel-off and a bubble are not generated within a keeping temperature range in a bonding agent with which a space between an optical function portion and an end face of an optical transmission line is filled while a holder portion for holding the optical transmission line such as an optical fiber and the optical function portion such as a lens array are integrally molded. An optical function array is disposed across the space from a fiber holder, and the optical function array including lenses and a lower-side holder portion are integrally molded by a transparent resin. Fiber cores are placed in V-shape grooves of the lower-side holder portion, and an upper-side holder portion is put on the fiber cores. End faces of the fiber cores face the space, and the space is filled with the bonding agent. When a linear expansion coefficient of the bonding agent is smaller (or larger) than the linear expansion coefficient of the connection portion that connects the optical function array and the lower-side holder portion, the bonding agent is cured at an atmosphere temperature higher than an upper limit (or lower than a lower limit) of a keeping temperature of the optical transmission component.
摘要:
A problem to be solved is to provide a pad for preventing axial shift for use in grinding of a eyeglass lens with which it is possible to process a raw lens into a desired profile without causing axial shift even if it is a lens coated with fluorine. The problem is solved by a pad for preventing axial shift for use in grinding of a eyeglass lens coated with fluorine comprising a laminate containing a first pressure-sensitive adhesive layer, an elastic material layer, an adhesive layer, a resin film and a second pressure-sensitive adhesive layer, the elastic material layer having a thickness of from 0.2 to 3 mm, an elongation of from 150 to 500% and a tensile strength of from 5 to 200 Kg/cm2, the adhesive layer having an adhesive strength of from 2 to 100 Kg/25 mm, and the resin film having an elongation of from 50 to 700% and a tensile strength of from 25 to 300 MPa.
摘要翻译:要解决的问题是提供一种用于防止用于研磨眼镜镜片的轴向移位的垫,通过该垫可以将原始透镜处理成期望的轮廓,而不引起轴向移动,即使其是涂覆有氟的透镜。 该问题通过用于防止用于研磨涂覆有氟的眼镜镜片的轴向移位的垫来解决,该垫包括含有第一压敏粘合剂层,弹性材料层,粘合剂层,树脂膜和第二压力 粘合剂层,弹性材料层的厚度为0.2至3mm,伸长率为150至500%,拉伸强度为5至200Kg / cm 2,粘合剂 粘合强度为2〜100Kg / 25mm的层,树脂膜的伸长率为50〜700%,拉伸强度为25〜300MPa。
摘要:
The present invention provides an optical multiplexer/demultiplexer which can demultiplex a multiplexed optical signal having a number of wavelength bands into respective wavelength regions, or multiplex light having respective wavelength regions in the field of optical communications. That is, light gained by multiplexing light having wavelengths λ1, λ2, λ3 and λ4 is emitted from an optical fiber (9a) and the optical axis thereof is bent by a micro lens (12a) of a micro lens array (14) so that the light is converted to parallel light which is then reflected from a mirror layer (19) so as to enter into a filter layer (17). A filter (17a) transmits only light having wavelength λ1, and light having other wavelengths is reflected and again reflected by the mirror layer (19) so as to enter into the filter layer (17). The optical axis of light that has transmitted through the filter (17a) is bent by a micro lens (12c) so that the light is coupled to an optical fiber (9c). Light having wavelength λ1, λ2, λ3 and λ4 is taken out from the light emitting ends of optical fibers (9c, 9d, 9e and 9f), respectively.
摘要:
An anti-reaction valve device is configured to open such that a plunger and a sheet member move away from each other in association with first and second set difference pressures. Two anti-reaction valve devices are provided between two pipes fluidically connected to a hydraulically powered actuator such that directional relationship of connection of primary and secondary ports is reversed between the two anti-reaction valve devices so that a reaction of the actuator is inhibited quickly and reliably. A one-way valve is positioned between the secondary port and an open and close control chamber within which the plunger and the sheet member are movable into contact with and away from each other and serves to inhibit a back flow of a hydraulic fluid. The one-way valve is capable of inhibiting the plunger and the sheet member from moving away from each other undesirably, and hence malfunction of the anti-reaction valve devices.
摘要:
A heat fumigation apparatus for transpiring a solution of a chemical agent dissolved in a solvent by heating which comprises a container having the solution therein, a wick a part of which is immersed in the solution and a heater for heating the upper portion of the wick thereby transpiring the solution drawn up the wick. The wick is composed of an inorganic powder and/or an organic powder, a binding agent and at least one antioxidant which is substantially non-evaporative at a heating temperature.