12results about How to "Smooth return" patented technology

The present application relates to a kind of modular molten salt loading and storage system, including vertical support structure rack, normal temperature electrical equipment group and high temperature molten salt equipment group are physically separated by isolation fence and integrated in it;High temperature molten salt equipment group includes molten salt storage tank and molten salt pipeline connected with molten salt storage tank;Molten salt pipeline includes molten salt loading pipe, molten salt loading pipe has upward inclination relative to horizontal plane, to realize the self-weight backflow of molten salt;The middle section of molten salt loading pipe is connected with molten salt isolation valve, and molten salt isolation valve and normal temperature electrical equipment group are cooperated to realize the on-off control of molten salt loading pipe.The present application effectively avoids the thermal influence of high temperature environment on normal temperature electrical equipment by isolation fence, and the integrated design of overall modularization integrates the core equipment of molten salt loading and storage into one, discards the traditional dispersed equipment arrangement and installation mode, greatly simplifies the field construction process, reduces installation period, also makes the debugging, maintenance and overhaul of system more convenient.

This invention relates to a heat dissipation module and its manufacturing method. The heat dissipation module includes a housing, a first capillary structure, and at least two heat pipe assemblies. The housing has several sidewalls on its outer periphery, at least two of which are provided with openings and inner edges formed within the openings. The first capillary structure covers the interior of the housing and is arranged along each inner edge. Each heat pipe assembly includes a cover plate, several heat pipes, and a second capillary structure. Each cover plate has several perforations and an inner sidewall. Each heat pipe has an open end, and the open ends of the heat pipes are connected and sealed to the corresponding perforations. Each second capillary structure covers the inner sidewall and the interior of the heat pipes. Each cover plate closes to the corresponding opening, ensuring tight contact between the second and first capillary structures. In this way, the liquid working fluid within the heat dissipation module can smoothly flow back to the first capillary structure via the second capillary structure, achieving stable heat dissipation efficiency.

The utility model discloses a machining center chip flushing device belongs to machining technical field, including the organism, the bottom wall in the organism is installed with the reflux tank, is provided with the flushing mechanism between the reflux tank and the organism, the inside fixed waste tank of organism, the top symmetrical of waste tank is provided with the flow guide plate, one side symmetrical of organism is installed with the motor, and the motor output shaft is fixed with the deslag screw rod, and the deslag screw rod is through to the inside of waste tank, is provided with the cleaning mechanism between the deslag screw rod and the organism, and the bottom fixed of waste tank one end is provided with the screen frame. The utility model discloses through the hydraulic cylinder drive push frame automatic discharge screen frame in the accumulation chip, avoid the chip to jam the screen, lead to the washing liquid reflux not to be smooth, solve the waste tank waterlogging overflow problem, improve the washing liquid circulation use efficiency, need not manual frequent cleaning screen frame, both promote the chip processing automation degree, and guarantee the washing liquid reflux smooth, avoid the machine tool workstation pollution, reduce the maintenance cost.

This utility model discloses a cyclone separator for a biomass circulating fluidized bed boiler, comprising a flue gas inlet section, a gas-solid two-phase separation section connected to the flue gas inlet section, a flue gas outlet section connected to the top and bottom of the gas-solid two-phase separation section respectively, and a solid return section. The solid return section includes multiple coaxially connected and fixedly connected solid return straight sections and multiple solid return conical sections, which are arranged at intervals in the vertical direction. Flue gas flows in from the flue gas inlet section, rotates along the inner wall of the gas-solid two-phase separation section, and achieves gas-solid two-phase separation through centrifugal force. The gas phase flows out through the flue gas outlet section, and the solid phase is returned from top to bottom through the solid return section. Through segmented and optimized solid return path and gas-solid separation flow field, the intermittent blockage problem caused by alkali metal adhesion in traditional cyclone separators is solved, avoiding forced boiler load reduction or shutdown. It is especially suitable for biomass combustion scenarios with complex fuel types and variable ash composition.

The invention relates to the technical field of precision transmission equipment, in particular to a closed-loop pipeline high-precision electric sliding table with a grating ruler, which comprises a base, linear guide rails are fixedly connected to the left side and the right side of the top of the base, and a sliding block is slidably sleeved on the surface of each linear guide rail; guide side plates are installed on the front side and the rear side of the sliding block through bolts, and guide sliding grooves are formed in the left side and the right side of the inner side of each guide side plate. The U-shaped circulation channel is matched with the arc-shaped guide block, so that the steel ball steers smoothly along an arc-shaped track, the clamping stagnation problem of a traditional channel is thoroughly solved, backflow is smoother, the friction coefficient is reduced through the polytetrafluoroethylene coating, the transmission efficiency is improved, the sliding block displacement is directly measured through the glass grating ruler assembly, and accumulated errors caused by indirect measurement are avoided. The incremental PID algorithm realizes rapid deviation correction, improves positioning precision and repeated positioning precision, does not have precision drift after long-term work, and is high and stable in positioning precision.

The utility model discloses a gravity return hinge device belongs to door body hinge field, including upper hinge, pin shaft, first shaft sleeve, second shaft sleeve and lower hinge, upper hinge is integral type structure, is constituted by upper hinge board, sleeve and pivot, upper hinge board bottom surface and sleeve top end vertical, pivot is located in the sleeve, and with sleeve coaxial arrangement, pivot top end and upper hinge board vertical, bottom end and stretch out sleeve, be equipped with first through -hole and second through -hole on the sleeve wall, be equipped with third through -hole on the pivot, and three through -holes coaxial arrangement, pin shaft passes first through -hole, third through -hole and second through -hole in proper order, and with three through -hole interference fit, first shaft sleeve rotatable sleeve on pin shaft between first through -hole and third through -hole section, second shaft sleeve rotatable sleeve on pin shaft between second through -hole and third through -hole section. Pin shaft and upper hinge jointly bear the weight of door body, greatly improved the bearing strength to door body, has promoted the service life of hinge.

The utility model discloses an oil slinging structure at the near pressure end of a supercharger, which comprises a turbine shaft (1), the near pressure end of the turbine shaft (1) is sleeved with a shaft sealing sleeve (2) and a floating bearing (3), the shaft sealing sleeve (2) and the floating bearing (3) are arranged along the axial direction of the turbine shaft (1), the outer layer of the shaft sealing sleeve (2) is sleeved with an air sealing plate (4), the outer layer of the floating bearing (3) is sleeved with a middle body (5), and the middle body (5) is sleeved with a sealing ring (6). An oil throwing cavity (6) is formed in the connecting position of the air sealing plate (4) and the middle body (5), and the lower end of the oil throwing cavity (6) is connected with an oil return pipeline (7). The utility model provides an oil throwing structure at a near-pressure end of a supercharger, which can reduce oil leakage and reduce engine oil supply frequency by reducing the design of an oil baffle plate.

The application discloses a backflow pipeline for aluminum paste metering and feeding, and relates to the field of pipeline design.The backflow pipeline for aluminum paste metering and feeding comprises, in sequence from the inlet to the outlet, an aluminum paste stirring kettle, an aluminum paste circulating pump, an aluminum paste metering tank and a concrete preparation device, and is connected with the concrete preparation device;feeding valves and cut-off valves are arranged in sequence between the aluminum paste circulating pump and the aluminum paste metering tank;one end of the feeding valve is connected with the aluminum paste circulating pump through a tee joint;the other end of the feeding valve is connected with a backflow valve through the other end of the tee joint;the other end of the backflow valve is connected with the top of the aluminum paste stirring kettle;the pipeline connected in sequence between the aluminum paste stirring kettle, the aluminum paste circulating pump, the feeding valve, the cut-off valve, the aluminum paste metering tank and the concrete preparation device is a feeding pipeline;the pipeline connected in sequence between the aluminum paste stirring kettle, the aluminum paste circulating pump and the backflow valve is a backflow pipeline;the pipeline design is optimized, and linkage control of each component is realized, so that the accuracy of the aluminum paste quality in the aluminum paste metering tank is improved, and the quality of concrete products is improved.

The utility model provides a novel sealing structure of a speed reducer, and belongs to the technical field of machinery. The problem that a traditional speed reducer is prone to dust invasion in the actual operation process is solved. The novel sealing structure of the speed reducer comprises a machine body and a motor installed on one side of the machine body, a fixing cover is installed on the motor, a motor shaft of the motor penetrates through the fixing cover and extends into the machine body, a transmission gear is arranged at the end of the motor shaft in a sleeving mode, and a transmission assembly is arranged in the machine body. The transmission gear is connected with the transmission assembly in a meshing connection mode and improves power of the transmission assembly. The speed reducer has the advantage that the sealing performance of the speed reducer is improved.

The application discloses a bearing for a vertical shaft, comprising an outer ring and an inner ring, two rows of retainers are arranged between the outer ring and the inner ring, rolling bodies are assembled in the retainers, the retainers comprise an upper edge part, a pocket part and a lower edge part, the upper edge part is arranged along the axial direction of the outer ring, the lower edge part is arranged along the radial direction of the outer ring, the pocket part is arranged obliquely, a plurality of pockets are arranged on the pocket part, pocket beams are formed between adjacent pockets on the pocket part, a plurality of outer convex ribs are arranged obliquely on the outer circumferential wall of the retainer, a plurality of inner convex ribs are arranged obliquely on the inner circumferential wall of the retainer, and the inner convex ribs and the outer convex ribs are arranged at positions corresponding to the pocket beams. The bearing has the advantages of simple structure, effective solution to the problems of uneven distribution of lubricating grease, double-row bearing lubricating grease flow and poor sealing reliability in the prior art, and effective improvement of the operation stability and service life of the bearing.

The invention belongs to the technical field of medical first-aid equipment, and discloses an automatic cardio-pulmonary resuscitation device and method.Intelligent pressing control is achieved by integrating an outer sleeve, a driving assembly, a transmission assembly, a pressing assembly, a monitoring unit and a controller; the controller controls the driving assembly to drive the pressing assembly to move downwards according to the depth and dynamically adjusts the output torque of the driving assembly based on the estimated value of the contact force or the load torque, so that the contact force is stabilized in a preset near-zero force window, namely, the lower limit ensures that contact is not disengaged, and the upper limit limits the residual compression force. By adopting the device, the contradiction of the traditional device is effectively solved, the rebound resistance is eliminated to realize near-zero residual force, the smooth backflow of venous blood is ensured, meanwhile, the separation and re-collision of the pressing head and the chest wall are avoided, the rib fracture risk is reduced, and the equipment stability and the cardio-pulmonary resuscitation effect are improved.

A rotary floating gear assembly machine comprises a base, a two-shaft moving device and an assembly mechanism. The assembling mechanism comprises a mounting plate, a driving assembly and a floating press-fitting assembly. The driving assembly is used for driving the floating press-fitting assembly to rotate forwards and backwards in a reciprocating mode. The floating press-fitting assembly comprises a limiting plate, a movable shaft, a limiting block, a first spring, a negative pressure connector, a buffer head, a contact pin and a second spring. And an air channel is formed in a central shaft of the movable shaft. In the descending process, the driving assembly drives the to-be-assembled gear to rotate forwards and backwards in a micro-amplitude mode to find a tooth groove, and meanwhile the floating press-fitting assembly conducts buffering and downward pressing till teeth are aligned, and meshing is completed. According to the assembling machine, automation, high precision and flexibility of gear assembling are achieved, tooth surface damage is effectively prevented, and the assembling success rate is increased.