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21results about How to "Avoid rubbing" patented technology
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High-speed direct-drive double-cantilever multi-stage cylindrical centrifugal compressor
PendingCN121854432Aavoid rubbingreduce frictionPump componentsRadial flow pumpsDrive shaftClassical mechanics
The invention provides a high-speed direct-driven double-cantilever multi-stage cylindrical centrifugal compressor, and relates to the technical field of centrifugal compressors, the compressor is directly driven by a high-speed motor, and multi-stage impellers are serially connected on two sides of a driving spindle in a double-cantilever manner to form a first compression section and a second compression section which are serially connected to work; unification of a high pressure ratio and an extremely compact structure is realized, a transient protection device integrated at the tail end of a stay bolt is provided aiming at specific transient safety risks of the long cantilever rotor, a bearing mounting part of the stay bolt is in clearance fit with an auxiliary bearing, and the stay bolt is kept in non-contact with a rotating part when the compressor operates stably, so that the safety of the compressor is ensured. Unnecessary friction and loss are avoided, the auxiliary bearing can be in contact with the stay bolt before any static runner component only when transient overlarge deflection of the rotor occurs, so that effective mechanical limiting is provided, and collision and abrasion of dynamic and static parts are prevented.
Owner:BEIJING FRONTIER POWER TECH CO LTD
A cutting and printing integrated device for a base cloth
PendingCN122403197ARealize continuous deliveryRealize full-process continuous operationPrinting pressMechanical engineering
Owner:GUIZHOU AONUO NEW MATERIALS CO LTD
Energy storage device and power utilization system
ActiveCN122091937Aavoid excessive bendingavoid offsetCell component detailsElectrical connectionPower usage
The invention relates to an energy storage device and a power utilization system. The energy storage device comprises a shell, an electrode assembly, an end cover assembly and a binding piece, wherein the shell is provided with an accommodating cavity; the electrode assembly is arranged in the accommodating cavity, the electrode assembly comprises a plurality of tabs and an electrode main body which are electrically connected, and the tabs and the electrode main body are arranged along a first direction; the end cover assembly is arranged on one side of the shell and used for sealing the containing cavity. The binding piece is positioned between the end cover assembly and the electrode main body; the binding piece is provided with a penetrating hole, and the penetrating hole penetrates through the two opposite surfaces of the binding piece in the first direction. The penetrating hole extends along a second direction, the plurality of tabs penetrate through the penetrating hole, and the first direction is intersected with the second direction; the penetrating hole is provided with a first side wall and a second side wall which are oppositely arranged in the second direction, and in the second direction, the distance between the first side wall and the second side wall is larger than the size of the ends, close to the electrode body, of the tabs.
Owner:XIAMEN HITHIUM ENERGY STORAGE TECHNOLOGY CO LTD
Shellfish and algae cultivation equipment with sustainable oxygen supply
ActiveCN224611594Uavoid rubbing
This invention provides a shellfish and algae aquaculture device with a sustainable oxygen supply. The device includes a main body with a base. Support frames are mounted on both sides of the base. Each support frame is a rectangular frame welded from multiple metal rods. The rectangular frame is divided into two areas by a partition. A mounting platform is located on the top of the support frame, and a support column is fixed to the platform. A rotatable fan blade is mounted on the top of the support column. An attachment plate is positioned between the partition and the mounting platform, with both ends of the attachment plate passing through the support frames on both sides of the base. The attachment plate is located between the fan blades on both sides. Algae are attached to the lower surface of the attachment plate, and shellfish are attached to the upper surface. This invention, by adding a rotating fan blade at both ends of the aquaculture device, allows the fan blade to rotate under the propulsion of ocean waves. During rotation, the fan blade breaks up dissolved oxygen stratification, and the generated bubbles and splashes increase the contact area between the water and air, thus improving dissolved oxygen efficiency.
Owner:HEBEI ACAD OF MARINE & AQUATIC SCI
A booster stage rotor structure and compressor
PendingCN122083024Ashorten the lengthreduce instabilityPump componentsPumpsClassical mechanicsTorque transmission
This invention provides a booster stage rotor structure and a compressor. The rotor structure includes: a fan shaft; a drum assembly fitted onto the fan shaft, including a front drum cantilever and a rear drum cantilever spaced apart along the axial direction of the fan shaft; one end of the front drum cantilever is provided with a front support portion fitted onto the fan shaft, and one end of the rear drum cantilever is provided with a rear support portion fitted onto the fan shaft, the rear support portion being located on the side of the rear drum cantilever away from the front drum cantilever; and a plurality of rotor blades arranged sequentially along the axial direction, with the rotor blades mounted on both the front and rear drum cantilever arms. This design, in a first aspect, shortens the cantilever length, significantly reducing instability at the cantilever end; and in a second aspect, torque transmission positions are provided between the fan shaft and the front drum cantilever, and between the fan shaft and the rear drum cantilever, resulting in smoother and more reliable rotation of the drum assembly.
Owner:AECC COMML AIRCRAFT ENGINE CO LTD
A chamfering tool and chamfering apparatus for spherical optics
The application provides a chamfering tool and chamfering device for a spherical optical element, comprising: a grinding element, the grinding element having a grinding surface, the grinding element surrounding a clearance cavity, and the edge of the grinding surface surrounding an opening of the clearance cavity; a limiting element, the limiting element being arranged on the grinding element, a side surface of the limiting element and the grinding surface surrounding a limiting cavity, the limiting cavity being used for accommodating the spherical optical element, and the lower arc surface of the spherical optical element abutting against the grinding surface. The problem that the spherical optical element with a large concave radius is prone to scratching the polishing surface during the chamfering process on the plane grinding tool is solved.
Owner:BEIJING TRANS MFG & TRADE
A stainless steel roots vacuum pump
ActiveCN224315164UMeet the needs of severe working conditionsImprove corrosion resistanceSealing arrangement for pumpsRotary piston pumpsVacuum pumpStainless steel welding
The utility model relates to a kind of stainless steel roots vacuum pumps, including stainless steel pump body, the front and rear of stainless steel pump body are equipped with first cooling water spacer sleeve, first cooling water spacer sleeve is respectively equipped in front end cover and rear end cover, cooling water spacer cavity is formed between the front and rear end cover of front end cover, between the front and rear end cover of rear end cover;Second cooling water spacer sleeve is equipped in stainless steel pump body, cooling water spacer cavity is formed between stainless steel rotor and stainless steel pump body;Two groups of end cap dynamic sealing components are equipped in front end cover, two groups of end cap dynamic sealing components are equipped in rear end cover;The out shaft end of main shaft is provided with out shaft end mechanical sealing component.The utility model uses stainless steel welded pump body to replace traditional cast pump body, combined with composite sealing system and integrated cooling structure, significantly improve corrosion resistance, sealing reliability and temperature rise control ability, suitable for suction delivery corrosive, high temperature and contain dust gas, manufacturing cost is reduced, service life is extended.
Owner:JIANGYIN TIANTIAN VACUUM EQUIP
A directional shelling machine for shelling peanuts for seed
The application provides a directional shelling machine for peanut seed saving, which comprises a feeding system, a pod clamping system, a shell-seed separation system, a collecting system, a posture adjusting and directional extruding system; the feeding system is used for automatically arranging pods and sending the pods to the posture adjusting and directional extruding system; the pod clamping system is used for pod extraction to facilitate the shell-seed separation system to separate the pod shell and the seed; the shell-seed separation system is used for separating and sucking the pod shell along the suture line to realize the separation of the pod shell and the seed; and the collecting system is used for collecting the peanut seeds and the peanut shells after shelling. The application solves the problems that the prior art cannot realize uniform cracking along the whole suture line, the shelling is not complete, the positioning depends on the peanut shell imitation mold, the application range is limited, manual classification or additional equipment is needed, and the seeds are easily damaged again.
Owner:LIAOCHENG UNIV
Online filling type generator cold water inlet support
The utility model relates to generator water inlet support technical field more specifically, relate to a kind of on-line filling type generator cold water inlet support of loading.A kind of on-line filling type generator cold water inlet support of loading, the water inlet support is sleeved in the outside of generator cold water pipe, water inlet support is connected with water inlet pipe, water inlet support includes support shell, packing, support flange and packing fixing ring assembly, the end of water inlet support close to water inlet pipe is provided with connecting flange, water inlet support is connected with water inlet pipe by connecting flange, packing is arranged in the packing chamber between support shell and generator cold water pipe, packing fixing assembly is arranged on water inlet support, support flange is arranged on support shell by flange bolt, support flange bottom is inserted into the packing chamber between support shell and generator cold water pipe and is arranged.The support prevents rotor cooling water leakage, ensures that unit can be safely and stably operated.The utility model mainly applies to on-line filling type generator cold water inlet support aspect.
Owner:SHANXI SOGO POWER GENERATION CO LTD
A deep foundation pit excavation soil deformation monitoring device
ActiveCN224338311Uachieve fixationavoid rubbingElectrical apparatusFoundation testingSoil massArchitectural engineering
The utility model belongs to the foundation pit monitoring technical field, and disclose a kind of deep foundation pit excavation soil mass deformation monitoring equipment, including inclinometer main part, the top end threaded sleeve joint of inclinometer main part has connector, the middle part fixed mounting of the top end of connector has cable, the top end swing joint of connector has top plate.The utility model by setting top plate, first clamping block, diagonal rod, movable block and threaded rod, when top plate is placed in the top of inclinometer tube, rotating handle, will make threaded rod rotate, since the outer surface of threaded rod and the inner surface of rectangular block threaded sleeve joint, so rectangular block will move with movable block and one end of diagonal rod, to make the other end of diagonal rod produce a pulling force to first clamping block, pull two first clamping block move towards each other and clamp cable, so as to realize the fixation of cable by first clamping block, so as not to operate personnel always pull cable.
Owner:张铭珠
Automatic loading and unloading device, method and system
ActiveCN116119354Bprevent fallingavoid scratchesFinal product manufactureStacking articlesRobot handControl engineering
The present application relates to automatic feeding and discharging device, method and system, the device includes manipulator, isolation frame, first storage device and second storage device;Manipulator includes first magnet part, the isolation frame includes frame body and second magnet part;Frame body and the second magnet part fixed connection;Under the first predetermined condition, manipulator and isolation frame are connected;Second predetermined condition, manipulator and isolation frame are separated;The first storage device or second storage device is provided with storage space for storing the isolation frame;Wherein, the first predetermined condition includes: the first magnet part and the second magnet part magnetic connection;Second predetermined condition includes: the first magnet part and second magnet part are separated.The automatic feeding and discharging device, method and system of the present application respectively adopt first magnet part and second magnet part to realize the carrying capacity of manipulator material, so that the requirements of preventing the isolation frame and the isolation frame on the material from falling can be achieved.
Owner:SHENZHEN SIPTORY TECH CO LTD
A paper collecting device for a printing machine
The utility model relates to printing paper collection technical field, and disclose a kind of paper collecting device for printing machine, including box, and the supporting leg of box bottom is arranged, and the top of box is equipped with box cover, the inside of box is equipped with lifting platform, and the both ends of lifting platform are equipped with lifting mechanism, the inside of lifting platform is equipped with conveying mechanism, and the upside of lifting platform is equipped with limit track, the bottom of box cover is equipped with ultraviolet dryer, and ultraviolet dryer is set in the upper of lifting platform, the both sides of box are respectively equipped with feed inlet and discharge outlet, and feed inlet is set in the upper of box, discharge outlet is set in the bottom of box. It has the advantages of continuous automatic paper collection, greatly improve production efficiency, lifting structure is stable and reliable.
Owner:HEFEI QITE PAPER PACKAGE CO LTD
Printing apparatus
PendingCN121871273APrevent lateral deflectionImprove stabilityOverturning articlesTypewritersComputer printingSoftware engineering
The invention discloses printing equipment which comprises a rack, a printer and a base material conveying device, and the base material conveying device comprises a first conveying assembly, a first turn-over conveying assembly, a second turn-over conveying assembly, a second conveying assembly and a third turn-over conveying assembly which are sequentially arranged in the base material conveying direction. The components jointly form a conveying channel which is integrally annular, and the printer is arranged on a conveying path of the first conveying component. The output end of the first turn-over conveying assembly communicates with the input end of the second turn-over conveying assembly through a direction turning mechanism, and after being printed through the first conveying assembly, a base material is sequentially subjected to three times of gentle turn-over and reversing conveying and then returns to the first conveying assembly again to complete double-face printing. Risks of skewing, curling, damage and surface scraping of the base material can be effectively reduced and avoided, particularly, the printing equipment can be matched with multiple types of base materials on the basis of considering miniaturization, and the stability and precision of double-sided printing can be improved.
Owner:ZHEJIANG OUNO MACHINERY CO LTD
Safety appliance inspection certificate label control system based on state perception
PendingCN121765558AReduce misuseReduce misjudgment and scrap management issuesElectrical testingReal-time clockControl system
The invention relates to the technical field of safety appliance state sensing, in particular to a safety appliance inspection certification label control system based on state sensing, which comprises a label protection component and a label shell made of TPU (thermoplastic polyurethane) material by injection molding of a composite mold, the appliance state sensing and reminding signal module adopts a real-time clock chip to collect an output timestamp and judges the state of the safety appliance through the output timestamp; outputting reminding signals corresponding to different judgment results according to the safety appliance state judgment results; the clock chip cross validation timing module is used for verifying a normal safety appliance of the real-time clock chip and an abnormal safety appliance of the real-time clock chip by adopting a cross validation mechanism, and correcting the output timestamp of the abnormal safety appliance through the output timestamp of the normal safety appliance; and the time deviation comparison clock abnormity judgment module is used for calculating the time deviation of the abnormal safety appliance corresponding to the real-time clock chip, comparing the time deviation with the sampling time interval, and judging whether a reminding signal for timely maintenance needs to be output or not.
Owner:HANZHONG POWER SUPPLY CO OF STATE GRID SHAANXI ELECTRIC POWER CO LTD
Anti-collision and anti-abrasion device for tube bundle of high-temperature reheater
PendingCN121829200Aeffectively fixedReliable limit actionHeat exchanger casingsThermodynamicsStructural engineering
Owner:HUANENG QINMEI RUIJIN POWER GENERATION CO LTD
A water and fertilizer integrated device for fruit and vegetable cultivation
ActiveCN116034702Bplay a bearing roleavoid adding moreClimate change adaptationSpraying apparatusAgricultural scienceAgricultural irrigation
This invention relates to the field of agricultural irrigation, specifically to an integrated water and fertilizer irrigation device for fruit and vegetable cultivation. It includes a base plate, a frame, a controller, a feeding mechanism, a water conveying mechanism, an adjusting mechanism, and two sets of sprinkler irrigation mechanisms. The frame is fixedly mounted on the base plate. The feeding mechanism includes a storage bin, a feeding assembly, a conveying assembly, and a crushing assembly. The water conveying mechanism includes a mounting frame, a mixing bin, a level sensor, a water supply assembly, and a stirring assembly. The adjusting mechanism includes a sliding assembly and a water supply assembly. Each set of sprinkler irrigation mechanisms includes a swing assembly and an adjustable spray assembly. The swing assembly is fixedly mounted on a corresponding sliding assembly, and the adjustable spray assembly is fixedly mounted at the bottom of the swing assembly. This invention allows for integrated water and fertilizer irrigation of fruits and vegetables by pre-filling fertilizer into the feeding hopper and operating the controller to open two manual valves at appropriate times. It is convenient, fast, safe, and efficient, greatly improving the fertilization efficiency for fruits and vegetables.
Owner:JILIN AGRICULTURAL UNIV
Anti-copy key structure of mechanical lock
ActiveCN224200400URealize the benefits of copy protectionavoid rubbingKeysControl engineeringHuman–computer interaction
The utility model discloses an anti-copying key structure of a mechanical lock. The anti-copying key structure comprises a key body, the adaptation mechanism is arranged on the outer side of the key body and used for being matched with a lock; one end of the key body is provided with a rotating mechanism used for extending to be matched with a lock for unlocking and a connecting mechanism matched with the rotating mechanism. The connecting mechanism comprises a connecting groove formed in one end of the key body and used for being matched with the lock. Through the matching arrangement of the adapting mechanism, the connecting mechanism and the rotating mechanism, the anti-copying advantage is realized, rubbing by external tools such as plasticine is avoided, the safety privacy is effectively improved, the copying difficulty can be increased by utilizing the irregular and complicated adapting mechanism, and meanwhile, the rotating mechanism can be adapted by utilizing the connecting mechanism, so that the anti-copying effect is realized. And extension and contraction adjustment is conducted on the connecting mechanism and the rotating mechanism, and a connector in the rotating mechanism can be adjusted to be matched with a customized lock, so that unlocking operation is completed.
Owner:ZHONGSHAN DAHAN SECURITY TECH CO LTD
A double screw pump with high stability
ActiveCN224301054UGuaranteed stabilitySafe to install and useRotary piston pumpsRotary piston liquid enginesGear wheelScrew pump
The utility model relates to the field of double screw pump discloses a high stability double screw pump, including the pump shell, the one end wall board of pump shell is equipped with the rotary limit frame, is equipped with the first rotary lever in the rotary limit frame, the first rotary lever approaches the rotary limit frame and is equipped with the driving gear, the driving gear other side is equipped with the first rotary bearing on the first rotary lever, is equipped with the pump cavity in the pump shell. The utility model is provided with the bearing and the anti -drop frame connected with the pump body in the shaft end of two rotors, can guarantee the setting stability of pump body to two rotors, can avoid the rubbing and bumping of rotor and pump cavity when the pressure in the pump cavity changes or appears extreme condition, guarantees the installation use safety of two rotors, when the pressure in the pump cavity is greater than the critical value, can temporarily store the part of raw materials in the pump cavity in the catheter and its containing cavity, can reduce the raw material pressure in the pump cavity, reduces the risk of pump body operation.
Owner:LAFA PUMP TECH (NINGBO) CO LTD
An asymmetric wire vibration damper
ActiveCN224637711Uavoid rubbingWill not retain rust
This utility model belongs to the field of high-voltage power line erection technology, specifically relating to an asymmetric power line vibration damper. It includes a clamp, with hammers of different masses connected to both sides of the clamp by steel strands. The distances from the hammers to the clamp are also unequal, with the heavier hammers having a greater distance and the lighter hammers a shorter distance. The clamp includes a grip and a locking nut. The grip has tapered ends with external threads. Each grip is divided into two arc-shaped plates that can be fastened onto the power line, with a tension gap between them. The locking nut is an open ring that can be fitted onto the power line through the opening. The locking nut has a tapered internal threaded hole that can engage with the tapered ends. The two locking nuts are tightened at both ends of the grip, clamping and fixing the two arc-shaped plates onto the power line. One of the arc-shaped plates is connected to the steel strands via a support arm. The advantage of this utility model is that it can provide four fixed frequencies, offering a wide frequency range.
Owner:JINCHENG QINXIU COAL CO LTD
A full load type bus and a special-shaped support beam of a middle aisle thereof
The utility model relates to a passenger car technical field especially, a kind of full bearing type passenger car and the special-shaped support beam of middle aisle in it. The special-shaped support beam of middle aisle of the passenger car of the utility model includes beam body, the both ends of beam body have the fixed end for being fixedly connected with car frame longitudinal beam, the top surface of the beam body has the lower concave pipeline laying groove with upward opening to be directly laid in for pipeline, the lower concave pipeline laying groove is equipped with two and is arranged in the length direction of the beam body interval, the top surface on the beam body side of the lower concave pipeline laying groove constitutes the fixed support surface for supporting and fixing aisle floor. The special-shaped support beam of middle aisle of the utility model solves the problem that pipeline is arranged between floor support crossbeam and luggage compartment top crossbeam in prior art, leading to threading inconvenience, relatively low efficiency, pipeline is vulnerable to damage.
Owner:ZHENGZHOU YUTONG BUS CO LTD
A method to assist ships in passing through navigation tunnels
ActiveCN117755437Bavoid rubbingImprove driving safetyTowing/pushing equipmentPropulsion power plantsClassical mechanicsHull
This invention discloses a method for assisting ships in passing through navigation tunnels. It includes the following steps: Step 1: retracting the wheeled drive mechanism; Step 2: moving the towing platform to the waiting ship; Step 3: extending the wheeled drive mechanism; Step 4: the bow of the ship entering the concave structure of the towing platform; Step 5: connecting the towing platform to the bow mooring bollard or hull of the ship; Step 6: activating the wheeled drive mechanism to tow the towing platform and ship; Step 7: moving the towing platform to the exit of the navigation tunnel and disconnecting the towing platform from the bow of the ship; Step 8: the towing platform exiting the channel and waiting for oncoming ships in the double-lane navigation tunnel; Step 9: the oncoming ship passes through by its own propulsion; Step 10: the towing platform connecting with the oncoming ship and towing it through the tunnel; Step 11: the towing platform returning to the starting point of the navigation tunnel. This invention has the advantage of enabling ships to pass through long-distance navigation tunnels under conditions of large water level fluctuations.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD