30results about How to "Avoid service life impact" patented technology

The invention discloses a vertical and horizontal dual-purpose special angle head suitable for special machining. The vertical and horizontal dual-purpose special angle head suitable for special machining comprises a box, a main shaft and a transmission mechanism which is installed between the box and the main shaft. The vertical and horizontal dual-purpose special angle head suitable for special machining is characterized in that the box is composed of an upper box and a lower box, and a plurality of needle bearings are installed between the upper box and the transmission mechanism; a front main-shaft bearing pedestal is fixedly installed on the lower box, the front end of the main shaft is fixed on the front main-shaft bearing pedestal through a first back-to-back angular contact ball bearing, and the rear end of the main shaft is fixed on the lower box through a second back-to-back angular contact ball bearing; the included angle ranging from 30 degrees to 45 degrees is formed between the main shaft and the transmission shaft. The vertical and horizontal dual-purpose special angle head suitable for special machining has the advantages of being good in rigidity, large in torque, small in size, beautiful, capable of achieving high machining accuracy under the vertical and horizontal dual-purpose conditions, suitable for rough machining and semi-finish machining of deep cavities, capable of achieving finish machining, capable of being applied to special machining of gantry machine tools and floor type boring machine tools, and particularly suitable for machining bumper bars of automobiles.

The invention provides a solar photovoltaic cell assembly protected by the back plate tempered glass, and belongs to the technical field of solar photovoltaic assemblies. The solar photovoltaic cell assembly comprises a solar photovoltaic cell assembly body. The solar photovoltaic cell assembly body comprises a panel, a silicon wafer plate, a back plate and a back plate protective plate. The solar photovoltaic cell assembly is characterized in that a sealing rubber strip is arranged to surround the peripheral edge part of the solar photovoltaic cell assembly body. Meanwhile, the four corners of the solar photovoltaic cell assembly body are respectively provided with a corner protective member. By means of the four corner protective members, the panel, the silicon wafer plate, the back plate and the back plate protective plate are mutually combined as one piece. According to the technical scheme of the invention, the overall mechanical strength of the solar photovoltaic cell assembly is improved, and the solar photovoltaic cell assembly is longer in service life. The solar photovoltaic cell assembly is convenient in inspection and maintenance, and the long-term stable operation of the solar photovoltaic cell assembly is ensured. The generation of virtual seams between the layers of the solar photovoltaic cell assembly is avoided, so that the service life of the solar photovoltaic cell assembly is not influenced at all. During the packaging, warehousing, transporting and installing process, the solar photovoltaic cell assembly is well protected by the back plate tempered glass. Meanwhile, the solar photovoltaic cell assembly is prevented from getting aged, and is convenient to machine, good in elasticity and excellent in restorative property. The back plate tempered glass can be in good contact with the solar photovoltaic cell assembly body and the clamping force between the back plate tempered glass and the solar photovoltaic cell assembly body is strong.

The invention discloses a glass cover plate for a display assembly, the display assembly and a terminal. The glass cover plate comprises a display area, wherein the display area corresponds to the display area of a display panel of the display assembly; and a periphery area which surrounds the display area, wherein a first corner part of the periphery area has a first information media window, andthe first information media window corresponds to a first electronic element. According to the glass cover plate, the display assembly and the terminal, the display assembly is enabled to have a relatively high screen-to-body ratio, and a sunken part is prevented from being formed in the display assembly.

The invention discloses a built-in wind driven generator blade heating device, and relates to the technical field of wind power generation. The built-in wind driven generator blade heating device comprises a supporting pillar. An oil tank is arranged on the inner wall of one side of the supporting pillar. Two sets of symmetrically-arranged heating rods are installed at the bottom of the inner sideof the oil tank in a welded mode. An oil conveying pipe is fixedly installed on the outer surface of the top of the oil tank, and one end of the oil conveying pipe stretches into the oil tank. A first oil absorption machine is installed at the top of the inner side of the oil tank in a welded mode, and a first oil inlet pipe is installed at the oil inlet end of the first oil absorption machine ina welded mode. By means of the built-in wind driven generator blade heating device, hot oil can be evenly carried into fan blades effectively at a constant speed, the fan blades are subjected to uniform deicing, deicing homogeneity to the blades by the device is greatly improved, the temperatures of the insides of the fan blades can be effectively controlled and adjusted, and the safety problem that fires can happen to the device due to excess temperatures is greatly avoided.

The invention discloses a heating pipe and a heating device comprising the heating pipe, and belongs to the technical field of heaters. The heating pipe (1) comprises a heating body (11) and a heat conduction part (12); the heating body (11) is an elongated hollow profile; and the heat conduction part (12) is arranged on the heating body (11), and is used for conducting heat radiation generated bythe heating body (11). According to the heating pipe provided in the embodiment of the invention, the heat conduction part is arranged on the heating body of the heating pipe; the structure of the heating pipe is changed; the heat exchange area of the heating pipe is increased; generated heat is sufficiently dissipated to four sides through the heat conduction part, the contact area of which is relatively large; therefore, the heat exchange efficiency is increased; the heating speed is increased; and simultaneously, the problem that the service life is influenced due to the fact that the surface of the heating pipe is too hot can be avoided.

The invention discloses a water drop steam engine. The water drop steam engine comprises an anti-skid bottom frame, a mounting base, an air guide support, a driving assembly, driving wheels, a supporting assembly, a heat dissipation assembly, a bearing seat, an air inlet assembly and a water inlet pipe. The mounting base is fixedly installed on one side of the top end face of the anti-skid bottom frame through a screw. The air guide support is mounted on one side of the top end face of the mounting base, the driving assembly is mounted on one side of the air guide support, the driving wheels are arranged on the outer side of the driving assembly, the supporting assembly is fixedly mounted on the other side of the top end face of the anti-skid bottom frame, and the bearing seat is mounted on the other side of the top end face of the anti-skid bottom frame. The water drop steam engine is simple in structure and small in size; during use, steam of steam water drops can be utilized, the driving wheels are driven through the steam, and the transmission effect is good; and meanwhile, during working, a good heat dissipation effect can be achieved, and therefore the heat dissipation rate of a piston air cylinder can be improved.

The invention relates to a remote automatic start-stop system for a pulverizer and a start-stop method thereof. An output end of an equipment access module is connected to an input end of a controllermodule; the controller module is connected to an internet-of-things gateway module which is connected to an equipment cloud platform module; the equipment cloud platform module is connected to a Uwebapplication module; the Uweb application module is connected to networked remote monitoring equipment; the remote monitoring equipment is connected to the controller module through the Internet; andan output end of the controller module is connected to an input end of the equipment access module. Even if the equipment operation goes wrong and a supervisor is not on the construction site, the equipment failure information such as improper operation during the period can be processed quickly and timely, thus, the service life of the entire equipment is not affected, and the equipment damage isavoided.

The invention provides a circuit breaker equipped with a permanent magnetic mechanism and a speed control device and method for the circuit breaker. The device comprises a permanent magnetic control module, a signal acquisition module and a high-speed digital processing module, wherein the signal acquisition module is used for acquiring a load state parameter of the circuit breaker; the high-speed digital processing module is used for looking up mechanical properties of the circuit breaker equipped with the permanent magnetic mechanism at that time according to a known corresponding relation table of a load state and the mechanical properties of the circuit breaker equipped with the permanent magnetic mechanism and adjusting and inputting a duty ratio of a PWM (pulse width modulation) wave of the circuit breaker equipped with the permanent magnetic mechanism; the permanent magnetic control module is used for controlling the opening/closing speed of the to-be-controlled circuit breaker equipped with the permanent magnetic mechanism according to the PWM wave subjected to duty ratio adjustment. Reasonable control on the opening/closing speed of the circuit breaker equipped with the permanent magnetic mechanism can be intelligently and reasonably realized, so that the influence of impact of the circuit breaker equipped with the permanent magnetic mechanism on service life of the circuit breaker equipped with the permanent magnetic mechanism is avoided and the mechanical life of the circuit breaker equipped with the permanent magnetic mechanism is prolonged.

The invention relates to the technical field of mining stone wall ecological restoration, and discloses a mining stone wall ecological restoration method. The mining stone wall ecological restoration method comprises the steps that planting holes are drilled in a stone wall, and the included angle alpha formed by the straight line where the center axis of each planting hole is formed and the upward direction of the outer wall of the stone wall is smaller than 45 degrees and larger than 10 degrees; water storage holes are drilled around the planting holes in the stone wall, and the drilling angles of the water storage holes need to meet the following requirements that it can be guaranteed that cavities of all the water storage holes must communicate with cavities of the planting holes, and the cavity of any planting hole communicates with the cavity of one water storage hole; conveying and guiding structures extending outwards along the outer wall of the stone wall are fixedly mounted at the lower edge position of orifices of the water storage holes; and vines are planted in the planting holes in the stone wall. According to the mining stone wall ecological restoration method, the defect that a net hanging grass spraying regreening technology is not resistant to rain wash is overcome, the requirement of plant growth for water is met, and the defect that a planting pool hanging regreening technology is difficult to irrigate is overcome.