32results about How to "Smooth return" patented technology

The compressor shaft system oil return structure comprises a crankshaft, an upper support, a lower support and a bottom oil pool, the crankshaft is provided with a crankshaft oil return channel, the crankshaft oil return channel comprises an oil return channel, an oil return outlet and an oil return inlet, the oil return outlet is communicated with the top of the oil return channel, the oil return inlet is communicated with the bottom of the oil return channel, and the oil return inlet is communicated with the bottom of the oil return channel. The upper end of the crankshaft is inserted into the upper support, the oil return inlet is formed in the upper support, the oil return outlet is formed in the lower support, the bottom oil pool is located below the lower support, and a gap is formed between the inner side wall of the bottom oil pool and the outer surface of the lower support. By implementing the structure, the performance of the scroll compressor lubricating system can be improved, the installation and maintenance process is simplified, and the reliability and efficiency of the system are improved.

The present invention provides a detachable and reconfigurable large-folding manned lunar rover, comprising a front suspension mounting plate, a front bottom plate, a rear suspension mounting plate, a rear bottom plate, a suspension system, a seat, a power supply, a control system, a storage bag, a remote control, an antenna, a connection fixing mechanism, a folding fixing mechanism, wheels, a dual-axle suspension, and a clamping seat. Compared with the traditional lunar rover, the vehicle has a folding and unfolding function to achieve a small envelope launch; at the same time, the whole vehicle has a separation and reconstruction function, and the whole vehicle can be separated and reconstructed into two three-wheeled manned vehicles to ensure the normal progress of the mission when the whole vehicle has a partial failure.

The utility model relates to the technical field of battery production, in particular to a battery cell pre-welding and cutting magnetic suspension production line and a battery production system. The battery cell pre-welding and cutting magnetic suspension production line comprises a magnetic suspension conveying assembly, a feeding assembly, a tab welding assembly, a tab cutting assembly, a rubberizing assembly and a discharging assembly. The magnetic suspension conveying assembly comprises a conveying line and a plurality of rotor carriers, the feeding assembly, the tab welding assembly, the tab cutting assembly, the rubberizing assembly and the discharging assembly are sequentially arranged at intervals in the conveying direction of the conveying line so as to form a plurality of cell processing stations on the conveying line, and the rotor carriers circularly move on the conveying line; and the battery cells are driven to shuttle to different battery cell processing stations along the conveying direction of the conveying line. The magnetic suspension conveying assembly replaces a traditional conveying mode, the rotor carrier flows back smoothly, the conveying time is saved, the automation degree is high, personnel investment is reduced, the occupied area is small, and the conveying efficiency between stations of the battery assembly line is effectively improved.

The utility model discloses an electrostatic spinning coating mechanism and an electrostatic spinning device. The electrostatic spinning coating mechanism comprises a base; the seat stand is connected to the base in a sliding manner; the at least one coating piece is mounted on the seat stand and comprises a seat body, and the seat body is provided with a liquid storage tank and a wire passing hole communicated with the liquid storage tank; the electrode wires are fixed at the two ends of the base and penetrate through the wire passing holes; the liquid supply circulating assembly comprises a liquid inlet header pipe, a liquid outlet pipe, a liquid storage tank and a circulating pump, the circulating pump is connected with the liquid inlet header pipe and the liquid storage tank, and the liquid outlet pipe is connected with the liquid storage tank; wherein the liquid storage tank and the circulating pump are installed on one side of the seat stand, a liquid outlet hole communicated with the wire passing hole and a liquid inlet hole communicated with the liquid storage tank are further formed in the bottom of the seat body, the liquid inlet header pipe is connected with the liquid inlet hole, and the liquid outlet pipe is connected with the liquid outlet hole. And the liquid supply circulating assembly is connected with the coating piece, so that the spinning liquid can circularly flow in a backflow and supply manner, and the working continuity of the whole spinning process is improved.

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.

The utility model provides a metal roof snow removal device, which relates to the technical field of roof snow removal, comprises two guide frame bodies, two moving blocks, a push plate and two driving mechanisms used for driving the moving blocks to move, and is characterized in that the two moving blocks are respectively connected in the two guide frame bodies in a sliding manner; a bearing is fixedly installed in the moving block, positioning shafts are fixedly connected to the two ends of the push plate, the moving block is rotationally connected with the positioning shafts through the bearing arranged in the moving block, and a limiting plate is fixedly connected to the bottom of the side, close to the push plate, of the moving block; in the process that the push plate returns from the edge of the roof panel to the top, the push plate rotates around the positioning shaft after the back face of the push plate abuts against snow, so that the snow passes through the lower portion of the push plate and cannot be accumulated on the back face of the push plate, the push plate returns smoothly, damage to a driving mechanism due to overload work is avoided, and the problem that the push plate is fractured due to too large stress is solved. And the practicability is improved.

The light-weight aluminum alloy profile machining cooling device comprises a water storage base, a cooling chamber is fixedly installed on one side of the top of the water storage base, an inlet and outlet is formed in one side of the cooling chamber, a material containing box is arranged on one side of the cooling chamber, and a baffle is fixedly connected to one side of the material containing box; a water outlet groove is formed in the bottom of the material containing box. According to the light-weight aluminum alloy profile machining cooling device, through the design of the cooling chamber, the storage box, the baffle, the motor, the screw, the nut plate, the driving wheel, the driven wheel and the belt, the motor drives the driving wheel to rotate, and the belt drives the driven wheel and the screw to rotate synchronously; the nut plate, the baffle connected with the nut plate and the material containing box are pushed to stably enter and exit from the cooling chamber according to the threaded connection principle, manual carrying is not needed, manpower is saved, operation convenience is guaranteed, the stability and safety of sectional materials in the cooling process are guaranteed, and sectional material damage or safety accidents caused by misoperation or equipment failures are avoided.

The invention relates to the technical field of cab lifting pumps, and discloses a lorry cab lifting pump system device which comprises an oil cylinder unit, an oil conveying pipe unit, an electric pump unit and an oil tank unit, and oil ways among the oil cylinder unit, the electric pump unit and the oil tank unit are communicated through the oil conveying pipe unit; according to the lorry cab lifting pump system device, the speed of directly driving the manual-electric integrated pump by the driving motor is reduced by additionally arranging the speed reducing mechanism, so that the oil suction and discharge stability is improved, and furthermore, a piston plate is arranged in the oil tank main body and is matched with a piston mechanism to control the internal pressure of the oil tank main body, so that the oil suction and discharge stability is improved. In the oil suction process, positive pressure is provided in an auxiliary mode to guarantee oil supply smoothness of the oil tank body, meanwhile, negative pressure is provided in the oil discharge process in an auxiliary mode to guarantee smooth backflow of hydraulic oil, and therefore the problem that in winter, the viscosity of the hydraulic oil is increased, and oil suction and discharge are difficult is solved.

The embodiment of the utility model provides a heat conveying device which can prevent a working fluid in an evaporation part from being dried up even under the use condition that a heating body with high heat productivity is thermally connected and under the use condition that the air volume of cooling air is increased. A heat transfer device is provided with: a first heat transfer unit having an evaporation unit thermally connected to a heating element; and a second heat transport unit connected to the condensing unit of the first heat transport unit and having a heat transport direction different from that of the first heat transport unit. The first heat transport unit has an integrated internal space in which a working fluid is sealed and which communicates from the evaporation unit to a connection part between the first heat transport unit and the second heat transport unit, and the internal space of the first heat transport unit communicates with the internal space of the second heat transport unit. The heat transport device is provided with: a first capillary structure which is provided in the internal space of the first heat transport unit and which extends from the evaporation unit to the condensation unit; a second capillary structure which is provided on the inner surface of the second heat transport unit and extends in the heat transport direction of the second heat transport unit; and a backflow promoting body that is provided to the second capillary structure, extends in the heat transport direction of the second heat transport unit, and has a capillary force, the capillary force of the first capillary structure being greater than the capillary force of the backflow promoting body. The capillary force of the backflow promoting body is greater than the capillary force of the second capillary structure, or the capillary force of the backflow promoting body is the same as the capillary force of the second capillary structure.

The utility model provides a storage battery exhaust cover structure and a storage battery, and belongs to the technical field of storage batteries, the storage battery exhaust cover structure comprises an exhaust cover body and an air filtering sheet, the lower end face of the exhaust cover body is provided with a labyrinth structure, two sides of the lower end face of the exhaust cover body are respectively provided with a fixed table, and the fixed table is lower than the labyrinth structure. The two sides of the lower end face of the exhaust cover body are each transversely provided with an exhaust channel, one end of the inner side of each exhaust channel communicates with an inner cavity of the corresponding installation groove, and one end of the outer side of each exhaust channel communicates with the outside. According to the exhaust cover structure of the storage battery provided by the utility model, the height of the fixed table is lower than that of the labyrinth structure, so that an enough gap is formed between the exhaust cover and the plastic cover after the exhaust cover and the plastic cover are subjected to hot melting, and accumulated liquid can smoothly flow back. In addition, the air filtering piece is embedded and hot-melted in the mounting groove through the combining side face on the upper portion of the circumferential direction, so that the air filtering piece is more convenient to assemble.

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.

The invention relates to the technical field of dehumidifiers, and discloses a fresh air system pipeline dehumidifier for a clean room. Comprising a bottom plate, a first shell arranged on the top face of the bottom plate, a clamping plate arranged on the top face of the first shell, an outdoor air inlet formed in the outer wall of the first shell, a fan arranged in the first shell, an outdoor air outlet formed in the outer wall of the first shell and an indoor fresh air opening formed in the outer wall of the first shell. The indoor air outlet is formed in the outer wall of the first shell, the filter screen mounting base is arranged in the bottom plate, the efficient filter screen is arranged in the filter screen mounting base, and the dehumidification mechanism is arranged in the first shell. According to the fresh air system pipeline dehumidifier for the clean room, the risk of high-place operation when the efficient filter screen is cleaned can be effectively reduced, and the influence of accumulation of dust and bacteria on the efficient filter screen on the performance of a fresh air system is reduced.

The present application belongs to the technical field of circulating cooling water treatment of air conditioning system, and particularly relates to a condenser online cleaning method and device with filtering and water quality treatment functions. The method comprises the following steps: S1, rubber ball cleaning; S2, backwashing and pollution discharge; and S3, water quality treatment. The present application can realize the switching logic of the three working modes of rubber ball cleaning, backwashing and pollution discharge, and water quality treatment, and through the cooperation control of the ball feeder, the filtering filter separator and the water pump, the device can be switched in the same device with the least equipment, so that long-term stable online cleaning is realized. Through the installation mode of the stainless steel filter cartridge in the filtering filter separator, the water body can flow in three different paths, so that the filtering filter separator can be used for a long time.

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 belongs to the technical field of condensate recovery, and particularly relates to a water electrolysis hydrogen production system and process capable of carrying out condensate nondestructive recovery. A water electrolysis hydrogen production system capable of carrying out condensate lossless recovery is characterized in that an oxygen side condensate collector and a hydrogen side condensate collecting tank are arranged, an added hydrogen side and oxygen side condensate recovery process is associated with a hydrogen production system process, and the recovered condensate finally flows back to an electrolytic bath through an alkali liquor process pipeline to participate in an electrolytic reaction; the hydrogen cooler condenser pipe and the oxygen cooler condenser pipe introduce the formed condensate into the gas-liquid separators connected with the hydrogen cooler condenser pipe and the oxygen cooler condenser pipe respectively, and the condensate flows back to the electrolytic bath through the alkali liquor process pipeline to participate in the electrolytic reaction, so that water-removed oxygen and water-removed hydrogen are obtained respectively, the condensate is effectively recycled, and the cyclic utilization of the alkali liquor is realized; the waste of water resources is reduced, the production cost is further reduced, and the overall environmental protection property of the system is improved.

The utility model provides a multifunctional self-closing valve, which relates to the valve body field, and comprises a valve body mechanism and a floating ball mechanism, the valve body mechanism comprises a valve body, the middle part of the valve body is provided with a hollow cavity which is through up and down, and the floating ball mechanism is a hollow sphere-like structure. The valve body is vertically fixed in the cooling water tank through the flange connecting part, the upper end of the self-closing valve is externally connected with the cooling water pipeline, cooling water flows into the cooling water tank along the cooling water pipeline and the self-closing valve under the normal working condition, and the floating ball mechanism floats up and down along the floating ball cavity along with the change of the liquid level under the marine bumpy working condition. When the upper portion of the floating ball mechanism abuts against the first sealing ring, the floating ball mechanism seals the shrinkage cavity, liquid is limited to flow from bottom to top, and then cooling water smoothly flows back to the cooling water tank under normal pressure. Opening and closing of the self-closing valve completely depend on buoyancy, so that the self-closing valve can be more suitable for complex working environments on the sea, and is high in practicability, better in durability and high in market value.

The invention discloses an automobile polyester film extensibility detection device, which relates to the technical field of photoelectric detection and comprises a workbench and an experiment table connected to the workbench. The driving table is arranged in the experiment table, a driving surface gradually protruding outwards is arranged on one side of the driving table, and a plurality of strip-shaped arc openings penetrating through the driving table are concentrically formed in the driving surface; the concentric strip-shaped arc opening formed in the driving table is matched with the frustum-shaped transmission part of the transmission table, so that the rotating speed of the transmission table can be flexibly adjusted, automatic adjustment of the angle of an optical instrument in the polyester film stretching process is achieved, and light deflection caused by deformation of a film material is compensated. Besides, aiming at the change of the stretching speed and the design of different rotating speeds of the transmitting end and the receiving end, the dynamic deformation of the polyester film is better adapted, the response speed and sensitivity of detection are improved, the detection efficiency is improved, and the adaptability and reliability of detection are enhanced.

The utility model discloses a refrigeration mirror cabinet and a heat dissipation device for a semiconductor refrigeration module. The heat dissipation device comprises a refrigerant box (1) and a heat conduction pipe (2) located above the refrigerant box (1), and the two tail ends of the heat conduction pipe (2) are connected with the refrigerant box (1). The heat conduction pipe (2) comprises an inflow branch pipe (21), a conveying branch pipe (22), a heat dissipation branch pipe (23) and an outflow branch pipe (24), the outflow branch pipe (24) is located between the lower tail end of the heat dissipation branch pipe (23) and the refrigerant box (1), and the outflow branch pipe (24) is vertically arranged downwards or obliquely arranged downwards towards the refrigerant box (1), so that a refrigerant medium in the heat dissipation branch pipe (23) rapidly flows back into the refrigerant box (1). By optimizing the heat conduction pipe structure of the heat dissipation device, the refrigerant medium flows in the heat conduction pipe more smoothly, so that the heat dissipation capacity of the heat dissipation device is improved, and the refrigeration performance of the semiconductor refrigeration module is improved.

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 reagent strip material returning device and medical detection equipment, and the reagent strip material returning device comprises a tray positioning device which is used for bearing and positioning a tray filled with a reagent strip; the material returning plate is arranged above the tray positioning device and is used for returning the reagent strips on the tray at the tray positioning device; and the material returning driving device is connected with the material returning plate and drives the material returning plate to ascend and descend so as to realize material returning of the reagent strips on the tray at the tray positioning device. According to the utility model, the tray positioning device is arranged for placing the tray, and meanwhile, the material returning plate is connected with the material returning driving device for driving the material returning plate to lift, so that the tray can be placed on the tray positioning device and material returning is realized by moving the material returning plate during material returning, and a tray clamping jaw and a structure for driving the tray clamping jaw to turn over do not need to be stressed; the long-term stable use of the structures can be effectively ensured, and the failure rate is reduced.

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 present invention provides an automatic control device and method for the withdrawal of ingots from an extruder, including an ingot withdrawal mechanism, a feeding robot, an ingot support platform, and a PLC control system. The ingot withdrawal mechanism and the feeding robot are both electrically connected to the PLC control system by signals. The ingot withdrawal mechanism and the feeding robot cooperate to withdraw the ingot to the ingot support platform. The PLC control system is electrically connected to an HMI by signals. The PLC control system is used to calculate the ingot length input by the HMI to obtain the pre-stop position L1 of the ingot withdrawal mechanism to withdraw the ingot to the ingot support platform and the starting position L2 of the feeding robot to follow and open, and to monitor the positions of the ingot withdrawal mechanism and the feeding robot in real time to send instructions at the corresponding positions for control. The present invention adjusts the relative positions of the ingot withdrawal arm and the movable telescopic arm of the feeding robot in real time during the withdrawal process to always maintain a dynamic balance, thereby realizing full automation of the ingot withdrawal of the extruder without manual intervention, speeding up the production rhythm, and reducing the safety hazards caused by manual transportation.

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 utility model discloses a drainage structure for a bank slope dam section of a gravity dam, which comprises a drainage steel pipe embedded in the bank slope dam section, a lower drainage unit arranged in a dam foundation and an upper drainage unit arranged in a dam body, and the lower drainage unit comprises lower drainage holes arranged side by side and permeable pipes arranged in the lower drainage holes. The upper drainage unit comprises upper drainage holes which are arranged side by side, and the upper drainage holes and the permeable pipe are coaxially arranged; an end cap is arranged at the top of each upper drainage hole, the upper drainage holes are communicated with a drainage steel pipe, and the bottom of the drainage steel pipe is communicated with a drainage gallery. Seepage water is converged into the lower drainage gallery through the drainage steel pipe through the permeable pipe, the upper drainage hole and the drainage steel pipe, the uplift pressure of a dam foundation is reduced, the safety of the dam body is improved, the drainage layout problem of a small bank slope section dam body is solved, only drilling and burying of the drainage steel pipe are needed, the self weight of the dam body is basically not reduced, and the construction cost is reduced. And dam body stability and safety are facilitated, and the influence on dam body construction is small.

The utility model relates to the technical field of bean product processing, in particular to quantitative feeding equipment for bean product processing, which comprises a metering box, a feeding hopper is fixedly mounted at the left end of the top of the metering box, a stirring device is detachably mounted in the metering box, and beans are effectively concentrated and fed into the metering box. In order to ensure that beans are uniformly distributed and mixed in the metering box, a stirring device is further arranged, in addition, in order to orderly convey bean products into a processing device and ensure that the material returning process is smooth and free of blockage, a material returning device is arranged, it is ensured that the bean products can smoothly move in the conveying process, and the overall processing efficiency is improved; by installing the metering ruler, an operator can directly observe the accurate position of a bean product in the metering box, the bean metering work of the operator is greatly simplified, the operation accuracy is improved, the working efficiency is remarkably improved, and in addition, great convenience is provided for quantitative feeding into equipment.

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.