Abstract: The present disclosure relates to a bearing supporting assembly and a machining method thereof, and a centrifugal compressor. The bearing supporting assembly includes: bearing supports, provided with through holes for mounting radial bearings; and a fixing plate, detachably mounted at one end of each of the bearing supports along an axial direction, sides, away from the bearing supports, of the fixing plates being configured to mount first thrust bearings.

Abstract: Provided are a phosphorescent organometallic complex and a use thereof. The metal complex has a ligand with a structure represented by Formula 1 and may be used as a light-emitting material in an electroluminescent device. These novel metal complexes can not only maintain low voltage and improve device efficiency in electroluminescent devices but also greatly reduce the half-peak width of light emitted by these devices so as to greatly improve color saturation of the light emitted by these devices, thereby providing better device performance. Further provided are an electroluminescent device and a compound formulation.

Abstract: The present disclosure relates to a centrifugal compressor and air conditioning equipment. The centrifugal compressor includes: a main shaft; a diffuser, provided with a first thrust bearing at one end away from a diffusion surface; a supporting assembly, provided with a second thrust bearing at one end facing towards the diffuser; and a thrust disk, configured to rotate together with the main shaft, located between the diffuser and the supporting assembly along an axial direction and provided with a thrust portion, a clearance between one side of the thrust portion and the first thrust bearing and a clearance between the other side of the thrust portion and the second thrust bearing being limited through mutual abutting of the diffuser and the supporting assembly.

Abstract: Provided are a phosphorescent organometallic complex and a use thereof. The metal complex has a ligand with a structure represented by Formula 1 and may be used as a light-emitting material in an electroluminescent device. These novel metal complexes can not only maintain high device efficiency and low voltage in electroluminescent devices but also allow these devices to have narrower half-peak width so as to greatly improve color saturation of light emitted by these devices, thereby providing better device performance. Further provided are an electroluminescent device and a compound formulation.

Abstract: The present disclosure provides a compressor rotor, a compressor and a refrigerant circulation system. The compressor rotor includes: a motor rotor including a plurality of rotor sections, a locking rod, a compression unit rotating part and a locking member. The rotor sections are fixedly connected in an axial direction and are provided with an axial through hole; and the locking rod penetrates through the axial through hole. The compression unit rotating part is located at the end part of the motor rotor and is connected to the locking rod. The locking member is configured to lock the compression unit rotating part on the locking rod. The locking rod, the compression unit rotating part and the locking member form a pressing structure which applies a pressure toward an axial inner side to the motor rotor.

Abstract: Provided are a parcel sorting system and method. The parcel sorting system is arranged in layers and includes: a parcel sorting layer (10) located on an upper layer of the parcel sorting system, a moveable container carrying layer (11) located on a lower layer of the parcel sorting system, a parcel delivery robot (12) and a control device (13). The parcel sorting layer (10) includes a modular entity platform (101) is a physical platform formed by splicing multiple splicable units and used for sorting parcels. The modular entity platform (101) includes multiple delivery lattices (1011) arranged in an array and a traveling area constituted by gaps between the multiple delivery lattices (1011) and used for the parcel delivery robot (12) traveling. One delivery lattices (1011) corresponds to one or more delivery path directions.

Abstract: The present disclosure discloses an order processing method. The method includes: receiving at least one pending order and placing the at least one pending order in an order pool; dividing part or all of pending orders in the order pool into at least one batch of task; for any of the at least one batch of task, allocating the batch of task to a corresponding target workstation, selecting a target inventory container matching an order item for a pending order in the batch of task, and selecting a target robot for carrying the target inventory container for the batch of task; controlling the target robot to carry the target inventory container matching the order item to the target workstation corresponding to the batch of task. The present disclosure further discloses an order processing device, a server, and a storage medium.

Abstract: Disclosed is a robot including a travelling apparatus, a body, a containing apparatus and an item grabbing apparatus. The travelling apparatus is disposed at a bottom of the robot and configured to travel to a preset position based on a travelling path received by the robot. The body is disposed above the travelling apparatus. The containing apparatus is connected to the body and includes multiple containing positions that are interlayers stacked in a vertical direction. One of the interlayers may contain at least one target item. The item grabbing apparatus is disposed on the body and configured to, based on a task received by the robot, grab, at the preset position, a first target item from an item storage apparatus and automatically place the first target item at a containing position of the containing apparatus, or grab, at the preset position, a second target item from the containing position of the containing apparatus and automatically place the second target item in the item storage apparatus.

Abstract: Provided are a marker-combined simultaneous localization and mapping (SLAM) navigation method, device and system. The method includes: providing an initialization area for a located object, where at least one of the initialization area for a located object, a travelling path of a located object, and a docking device of the located object is provided with an marker including at least one of pose information, identification information and non-identification graphic information; controlling the located object to perform at least one of following operations: starting from the initialization area for a located object, and based on the marker, determining an initial pose of the located object; when the marker is passed on the travelling path, updating a current pose of the located object based on the marker; and when docking with the docking device, adjusting a relative pose between the located object and the docking device based on the marker.

Abstract: Provided is a relay goods picking system, the system includes: a plurality of carrying robots, a manual picking area, auxiliary pickup tools for manual goods picking which store goods for manual picking, a robot picking inventory container area provided with a plurality of inventory containers used for storing goods and being carried by the plurality of carrying robots, operating positions and a control system capable of communicating with the plurality of carrying robots and manual picking persons. For a mixed order which involves both goods in the manual picking area and goods in the robot picking rack area, under control of the control system, a person-to-goods picking mode and a goods-to-person picking mode are used to complete the goods picking.

Abstract: The present application relates to a liquid injection ring and a refrigerant lubricated bearing assembly, the liquid injection ring includes a ring body; the ring body is provided with a liquid storage chamber and a plurality of liquid guide holes; the liquid storage chamber is arranged in a circle around the axis of the ring body; the inlets of the liquid guide holes communicate with the liquid storage chamber; the outlets of the liquid guide holes face the end surface of a to-be-lubricated bearing; and the plurality of liquid guide holes are uniformly distributed in a spaced manner along the circumferential direction of the ring body.

Abstract: Disclosed is a robot including a travelling apparatus, a body, a containing apparatus and an item grabbing apparatus. The travelling apparatus is disposed at a bottom of the robot and configured to automatically travel to a preset position based on a travelling path received by the robot. The body is disposed above the travelling apparatus. The containing apparatus is connected to the body and includes multiple containing positions that are interlayers stacked in a vertical direction. One of the interlayers may contain at least one target item.

Abstract: The present application discloses a cooling system and a control method thereof; the cooling system includes a compressor unit, a condenser, a first solenoid valve, a second solenoid valve, a first throttle valve and a frequency converter; the second solenoid valve and the first throttle valve are connected with the first solenoid valve in parallel after being connected in series with each other; the compressor unit, the condenser, the first solenoid valve and the frequency converter are connected in series to form a first cooling loop; the compressor unit, the condenser, the second solenoid valve, the first throttle valve and the frequency converter are connected in series to form a second cooling loop; and the frequency converter is internally provided with a temperature detection module and a heat exchange module.

Abstract: Provided is a relay goods picking system, the system includes: a plurality of carrying robots, a manual picking rack area, auxiliary pickup tools for manual goods picking which store goods for manual picking, a robot picking rack area provided with a plurality of racks used for storing goods and being carried by the plurality of carrying robots, operating positions and a control system capable of communicating with the plurality of carrying robots and manual picking persons. For a mixed order which involves both goods in the manual picking rack area and goods in the robot picking rack area, under control of the control system, a person-to-goods picking mode and a goods-to-person picking mode are used in series to complete the goods picking in a relay manner.

Abstract: Provided are a warehousing access system and method. The system includes a control server, an access device, a carrying device, a storage container and a dock location; in response to an item operation request, the control server controls a first target access device to take a target storage container out from a current storage location and carry to a first target dock location, and controls a first target carrying device to carry a first target storage container from the first target dock location to a workstation for operation; in response to an operation complete instruction, the control server controls a second target carrying device to carry the target storage container from the workstation to a second target dock location and controls a second target access device to carry the target storage container from the second target dock location to a storage area and store at the target storage location.

Abstract: A group control device includes a central processing system. An output port of the central processing system is electrically connected to an input port of a display unit through a first wire. An output port of the display unit is electrically connected to an input port of a signal feedback module through a second wire. The output port of the signal feedback module is electrically connected to an input port of the central processing system through a third wire. The input port of the central processing system is electrically connected to an input port of the group control host operating terminal. The input port of the group control host operating terminal is electrically connected to an output port of a data sending module. The central processing system is bidirectionally connected with a retrieval and extraction module through wireless connection.

Abstract: The invention discloses a method and system for obtaining an evaluation model and an evaluation method and system for the plugging performance of drilling fluid. The method for obtaining the evaluation model comprises: applying a confining pressure to a holding device where a preset fracture model is located, wherein a displacement differential pressure of two ends of the holding device is a preset displacement differential pressure; measuring a flow of standard measuring fluid flowing through the preset fracture model under different confining pressures, wherein the different confining pressures gradually increase according to a first preset rule; and controlling to stop increasing the confining pressure when the flow of the standard measuring fluid flowing through the preset fracture model reaches a preset flow so as to compress the preset fracture model into the evaluation model at a micro-nano level.

Abstract: Provided is an article sorting system having a security inspection function which relates to intelligent logistics. The system includes: a security inspection machine including a detector, a security inspection driving device and a security inspection channel; and a mobile transport device matched with the security inspection channel in space, which is configured to move a received article to be sorted by using the security inspection driving device so that the article to be sorted passes through the security inspection channel and accepts a security detection performed by the detector in the security inspection channel.

Abstract: Disclosed is a high-temperature air conditioning device. By changing an arrangement mode of throttle valves, a pressure of refrigerant inside a low-pressure pipeline is made to be lower than a pressure of refrigerant inside a medium-pressure pipeline, thus ensuring that the refrigerant, used for cooling components, inside the low-pressure pipeline has a low pressure, thereby solving a problem in the prior art that a frequency converter, a motor and lubricating oil are not cooled sufficiently or cannot be cooled due to excessively high evaporation pressure.

Abstract: The present invention provides an improved visual laryngeal mask comprising a snorkel, an end of the snorkel is provided with a fixing seat. The fixing seat is provided with an airbag, and the fixing seat has a recess which is provided with an airway opening. The inner wall of the snorkel longitudinally extends an imaging cavity and a cleaning channel. The imaging cavity has a built-in imaging device, and the imaging cavity and the cleaning channel protrude forward relative to the airway opening to form a stopper which prevents an epiglottis from blocking the imaging device.