11results about How to "Change quantity" patented technology

This disclosure provides a dust collection device and cleaning equipment, belonging to the field of cleaning equipment. The dust collection device includes a dust cup, a cyclone separator, a shielding member, and a drive motor. The cyclone separator is disposed within the dust cup and has a dust discharge side and a clean air discharge side arranged opposite each other along the axial direction of the cyclone separator. The cyclone separator includes multiple cyclone cones, each of which has an exhaust passage communicating with its interior and facing the clean air discharge side. The shielding member is rotatably disposed on the clean air discharge side of the cyclone separator and configured to selectively close at least a portion of the exhaust passage during rotation. The drive motor is disposed on the dust discharge side of the cyclone separator and is drively connected to the shielding member to drive the shielding member to rotate. The dust collection device and cleaning equipment provided by this disclosure can balance separation performance, flow capacity, structural compactness, and switching reliability.

The invention relates to a method for determining at least one free space in a vehicle environment of a vehicle, wherein the method has the following steps: (a) receiving at least two-dimensional contour points (11) of an object (5) in the vehicle environment; (b) assigning the received contour points (11) to a plurality of rows (8) which divide at least one field of view (4) located in the vehicle environment and considered in the scope of the method in rows; (c) for at least a portion of the plurality of rows (8), respectively within a row (8), determining as a minimum contour point (13) such a contour point (11) which has the smallest contour point distance (15) to a reference system (2, 3) of the vehicle (1) of all contour points (11) assigned to the respective row (8) within the row (8); and (d) connecting the previously determined minimum contour points (13) as one free space (6) or a plurality of free spaces (6) within the at least one field of view (4) considered.

The application discloses a graphite / silicon carbide composite phase change energy storage unit and a preparation method thereof. The graphite / silicon carbide composite phase change energy storage unit is prepared by the following basic processes: (1) 3D printing of mixed powder; (2) selective laser sintering of a phase change energy storage unit blank; (3) multiple carbonization and vacuum pressure impregnation densification pretreatment; (4) molten silicon infiltration sealing strengthening treatment; (5) loading of high-temperature molten salt; and (6) packaging. The graphite / silicon carbide composite phase change energy storage unit provided by the application has the advantages of simple preparation process, low cost, easy industrial production, high-temperature resistance, corrosion resistance, good mechanical properties, good packaging performance, high loading rate and the like. The existence of the three-dimensional porous graphite skeleton improves the energy conversion efficiency and heat transfer uniformity, and multiple phase change energy storage units are assembled together to form an energy storage device, which is expected to be applied to peak load shifting, waste heat recycling and reuse and periodic new energy rapid storage and release.

The utility model discloses an inverted push rod mechanism of a packaging machine supply line, which comprises a conveying rack, a bearing track mounted on the conveying rack and used for bearing and guiding products, a transmission chain belt mounted inside the conveying rack, and a first push rod and a second push rod alternately rotating on one side of the transmission chain belt at intervals. And open grooves matched with the first push rod and the second push rod are formed in the top of the bearing rail, and the guide assembly is installed on the conveying rack, used for guiding and limiting the first push rod and the second push rod and further used for changing the working state of the second push rod. The transmission chain belt, the first push rod, the second push rod and the guide assembly are used in a matched mode, the length of the first guide rod on the first push rod is different from that of the second guide rod on the second push rod, when the switch unit is opened or closed, the working state of the second push rod can be adjusted through the second guide rod, and the number of conveyed products can be changed.

The application discloses a low-rigidity thin-wall gear ring end face grinding tool, which comprises an electric permanent magnetic chuck, three fine-tuning precision lifting platforms, three arc-shaped clamping blocks and a flatness measuring device, the three fine-tuning precision lifting platforms and the three arc-shaped clamping blocks are alternately arranged on the surface of the electric permanent magnetic chuck with equal intervals. The application changes the traditional end face adsorption clamping into gear ring cylindrical surface clamping, changes the clamping force from axial to radial, and transfers the error to the non-sensitive direction of machining, so that the gear ring positioning can be rapidly realized, and the machining efficiency of the gear ring is improved; the end face will not be deformed and the error reflection problem will not occur under the large magnetic force, and the clamping force will not affect the precision of the end face grinding process. The electric permanent magnetic chuck is adopted for clamping, so that the deformation problem of the clamping position in the traditional clamping mode is avoided, and the end face grinding production efficiency is improved.

The application discloses a kind of intelligent injection devices for microbial oil displacement injection agent, including operation platform, operation platform includes storage area, output area and support area, storage area includes microorganism monitoring unit and sampling tube;Nutrient additive unit;Microbial injection unit;Control area;Control area further includes: adjustment assembly, set in control area, according to the detection result of microorganism monitoring unit to control microbial injection amount;Injection assembly for intelligently injecting nutrient agent into oil reservoir formation is provided in the inside of output area;And central control panel is set on support area, this microbial oil displacement injection agent intelligent injection device, using adjustment assembly can effectively inject the right amount of oil displacement and plug removal type microorganism, change the number of microorganisms under oil reservoir formation, avoid the condition of plugging, so that the subsequent injection of nutrient agent can be fully absorbed by microorganism, to improve the purpose of oil displacement efficiency.

This utility model discloses a modular stator structure, characterized by comprising several stator core blocks arranged in an I-shape, each composed of a yoke and stator teeth, forming an integral stator core. Stator slots are formed between adjacent stator core blocks, and the stator teeth are T-shaped, with slot openings communicating with the slots between adjacent teeth. The structure also includes a filler for changing the number of stator slots without altering the stator core diameter. This utility model utilizes several stator core blocks assembled into an integral stator core, with each block composed of a yoke and stator teeth. The entire stator core is modularly assembled, which effectively improves utilization, saves silicon steel material, and reduces costs when pressing silicon steel sheets using a press.

The utility model relates to material turning baffle technical field discloses a kind of coarse mill baffle material turning device, including first baffle, second baffle and third baffle, second baffle and third baffle are sequentially spliced in the front end of first baffle, and form ladder shape, still be provided with the long screw rod that is through the first baffle, second baffle and third baffle are penetrated, the end of long screw rod is fixed with the abutment plate that is attached to the surface of third baffle, and the outer ring of other end of long screw rod is connected with the nut that is abutted on the surface of first baffle by screwing, the bottom both sides of first baffle, second baffle and third baffle are provided with arc edge.The utility model technical scheme is changed into three-stage ladder baffle by the original baffle, utilizes roller rotation power and baffle left and right propulsion power, so that ceramic raw materials are automatically turned when being pushed by reaction force through ladder position, realize automatic material turning action, reduce worker's labor intensity, effectively avoid the phenomenon that material turning times are not enough, and improve material turning efficiency.

This utility model discloses a secondary core-shooting casting device for agricultural machinery valves, including a casting mold support block. A casting groove is formed on the top surface of the casting mold support block, and a cooling chamber is formed inside the casting mold support block. A water outlet connector connected to the cooling chamber is installed on one side of the casting mold support block, and a connecting frame connected to the cooling chamber is installed on the other side of the casting mold support block. A water inlet connector is bolted to one side of the connecting frame. Multiple limiting vertical plates are installed inside the cooling chamber, and several baffles are provided inside the cooling chamber. The baffles are sleeved on the outside of the limiting vertical plates, and a limiting component that presses down on the baffles is installed on one side of the connecting frame. This utility model controls the baffles to block the water passages in a portion of the cooling chamber, reducing the coolant flow rate in that area and thus adjusting the cooling efficiency in that area. The coolant flow rate is higher where there are fewer baffles and lower where there are more baffles, ensuring the quality of the casting.

The application discloses a variable-diameter steel wire rope decontamination device, which comprises a decontaminator and an axial limiter, and the decontaminator comprises a variable-diameter mechanism and a decontamination cutter. The variable-diameter mechanism comprises variable-diameter blocks, a rotating disc, a fixed disc, a positioning shell and rotating blocks. The rotating disc and the fixed disc are uniformly distributed with the variable-diameter blocks in the circumferential direction. The rotating disc is uniformly distributed with first track grooves in the circumferential direction, and the fixed disc is uniformly distributed with second track grooves in the circumferential direction. The upper and lower surfaces of the variable-diameter blocks are respectively slidably installed in the corresponding track grooves of the fixed disc and the rotating disc through bosses. One end of the variable-diameter block is provided with an open groove, and the open groove is provided with a rotating block. One end of the rotating block is provided with a recess, and the decontamination cutter is elastically installed in the recess. The positioning shell is arranged outside the rotating disc and the fixed disc, and the positioning shell is fixedly connected with the fixed disc. The positioning shell and the rotating disc are adjustably connected in the circumferential direction. The application has the advantages of small size, low cost, high decontamination efficiency, adaptability to various diameter series of steel wire ropes, quick installation and replacement and the like.