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356results about How to "Light in mass" patented technology

Drilling fluid inside-in and inside-out type petroleum drilling system

The petroleum drilling system comprises a base, the base is horizontally placed on the ground, a through hole is formed in the middle of the base, a transverse plate is arranged above the base in a lifting mode, a first motor is arranged above the transverse plate, and an outer pipe is arranged below the transverse plate; the top of the outer pipe is connected with an output shaft of the first motor pair, a drill bit is arranged at the bottom of the outer pipe, and a hole channel is formed in the drill bit in a penetrating mode and communicates with the outer pipe. An inner pipe is arranged on the inner side of the outer pipe, a plurality of adjusting assemblies are arranged below the inner pipe, each adjusting assembly is connected with the inner side wall of the outer pipe, and the size of an opening in the upper end of a space formed by the adjusting assemblies is larger than that of an opening in the lower end of the space. A water pump and a liquid tank are further arranged on the base; the water pump can control the liquid tank to enable drilling fluid to enter and exit from the inner pipe and the outer pipe; by replacing the manufacturing material of the inner pipe, the overall mass of the inner pipe is lighter, and then the fixing degree of the plug pin to the inner pipe is improved.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

A valve control device and system for extraction pipelines and its usage method

This invention discloses a valve control device and system for extraction pipelines and its usage method, including a valve drive motor, a valve drive linkage, a trolley, and a track. The valve drive linkage is fixed to the rotational power output shaft of the valve drive motor, and the valve drive motor is fixed to the trolley via a motor frame. The trolley can slide along the track. The trolley drives the valve drive motor to move, and the valve drive linkage controls the valve status of each borehole pipeline. This invention controls the valve drive motor to rotate the valve drive linkage, thereby driving the valve wrench to rotate, achieving valve control of the extraction pipeline. Furthermore, by moving the trolley, the valve drive motor and valve drive linkage are moved and positioned, enabling valve control of multiple extraction pipelines. Compared to previous methods using explosion-proof electric three-way valves and explosion-proof electric check valves, this invention offers advantages such as low cost, small size, light weight, easy installation, no need for significant modifications to the extraction pipelines and valves, and a simple control system.
Owner:CHINA COAL TECH & ENG GRP SHENYANG ENG CO

Unmanned aerial vehicle energy supply system and method based on fiber optic cable

PendingCN122501541AReduce static consumptionReduce dynamic disturbances
The present application relates to the technical field of tethered unmanned aerial vehicle, and discloses an unmanned aerial vehicle energy supply system and method based on optical fiber cable, comprising: an energy supply station arranged on the ground or carried on a mother ship; a light flexible high-energy laser transmission optical cable, the first end of which is optically coupled with the energy supply station; and an unmanned aerial vehicle, which is provided with an optoelectronic conversion unit, the second end of the light flexible high-energy laser transmission optical cable being releasably physically connected with the optoelectronic conversion unit, for receiving a high-energy laser beam transmitted through the light flexible high-energy laser transmission optical cable, and converting the high-energy laser beam into electric energy through the optoelectronic conversion unit to provide all or part of the electric power required for flight and task load; through the laser-electric energy conversion mode based on the light flexible high-energy laser transmission optical cable, the decoupling of the hovering height and the operation radius of the unmanned aerial vehicle is realized, the restriction of the self-weight of the on-board battery on the flight performance is eliminated, and the unmanned aerial vehicle can still maintain stable hovering and long-time hovering in a complex airflow environment.
Owner:NAT UNIV OF DEFENSE TECH

Dust collecting device and cleaning apparatus

PendingCN122498751AChange the effective flow arealight in massThermodynamicsCyclonic separation
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.
Owner:ZHUIMIFENGXING TECHNOLOGY (SUZHOU) CO LTD

GPC1 in the prevention and / or treatment of 131 I Use of inhaled internal radiation for thyroid cancer

The application provides GPC1 in preventing and / or treating 131 The application of inhaled internal radiation in causing thyroid cancer belongs to the technical field of biological medicine. The application takes GPC1 as 131 A treatment target of inhaled internal radiation in causing thyroid cancer, and finds that high expression of GPC1 can promote the proliferation, migration and invasion of thyroid cancer cells, and low GPC1 inhibits the occurrence and development of thyroid cancer. Therefore, the application provides application of a reagent for inhibiting, knocking down or knocking out GPC1 in preparation of a drug for preventing and / or treating thyroid cancer. The application also provides that deletion of GPC1 can effectively alleviate 131 The phenotypes of thyroid cancer caused by inhaled internal radiation, and GPC1 is an effective target for preventing and treating 131 Thyroid cancer caused by inhaled internal radiation.
Owner:ACADEMY OF MILITARY MEDICAL SCIENCES

A full-effect light multi-functional bulletproof protective mask and a preparation method thereof

PendingCN122650764Alight in masshigh fracture toughnessEffect lightAluminum oxynitride
The application relates to the technical field of bulletproof masks, in particular to a full-effect light multi-functional bulletproof protective mask and a preparation method thereof. The preparation method comprises the following steps: mixing aluminum nitride, aluminum oxide and yttrium oxide by wet ball milling, pre-pressing, cold isostatic pressing, sintering, hot isostatic pressing, polishing and obtaining an aluminum oxynitride transparent ceramic plate; hot-pressing forming PC middle plates and PC lining plates, cleaning, coating with a silane coupling agent, spraying a fog-proof coating on the PC lining plates, and baking; obtaining pretreated PC lining plates and pretreated PC middle plates; taking the pretreated PC lining plates, laying TPU-UHMWPE transparent weftless sheets, laying the pretreated PC middle plates, laying PU glue, laying the aluminum oxynitride transparent ceramic plate, bagging, hot-pressing, standing, edge sealing, curing and obtaining a full-effect light multi-functional bulletproof protective mask. The full-effect light multi-functional bulletproof protective mask and the preparation method thereof have the advantages that the prepared bulletproof protective mask is light in quality, good in bulletproof effect and high in light transmittance.
Owner:ANRUI ARMOR MATERIAL (WUHU) TECH CO LTD

Low-temperature vacuum annular electron accelerator arc reactor

The invention discloses a low-temperature vacuum annular electron accelerator arc reactor, which relates to the field of electromagnetism and is applied to the technology and concept of energy generation, conversion and transmission. The device is composed of a high-voltage electron gun module (1), a low-temperature vacuum annular pipe module (2), a sealing module (3), an accelerating electric field module (4), a magnet guiding module (5), a magnetic core module (6), an induction coil output module (7) and a base module (8). According to the technology and the concept, a low-temperature vacuum annular electron accelerator is used for replacing a primary coil winding of a traditional transformer, that is, the same electric field is used for circularly accelerating electrons emitted into an annular vacuum tube by an electron gun to form annular electron flow to replace the primary coil winding of the traditional transformer. When the high-speed circling electrons lose to accelerate the action of an electric field, due to the mass inertia effect of the high-speed electrons, the annular current cannot disappear immediately under the guidance of the magnetic lines of force of the fixed magnet, the magnetic flux of the magnetic core still changes, and therefore the secondary coil can still obtain corresponding arc discharge. Therefore, the inductive discharge of the secondary coil can reversely act on the energy conversion of the accelerating electric field or the electron gun, so that the energy conversion efficiency is improved, and the energy loss is reduced.
Owner:王子民 +2

Carbon fiber box with storable support and LED display screen

The utility model belongs to the technical field of light-emitting diode (LED) display, and relates to a carbon fiber box body with a storable support and an LED display screen, the carbon fiber box body comprises a box body and a support body, and the support body is installed on the back face of the box body; the support body comprises a supporting unit and a clamping unit, the supporting unit is rotationally installed on the left side of the box body, the clamping unit is rotationally installed on the right side of the box body, the supporting unit is provided with a longitudinal connecting pipe, and the clamping unit is provided with a movable clamp used for clamping the longitudinal connecting pipe; the folding LED display screen has the advantages that in the storage state, the clamping units and the supporting units are folded and stored on the back face of the box body, the splicing and disassembling operation difficulty of the screen body is lower, disassembling and assembling operation is more convenient, the box body and the supporting frame are integrally designed and modularly designed, and the problems that an existing LED display screen is troublesome in disassembling and assembling operation and inconvenient to disassemble and assemble are solved. And the disassembly and assembly efficiency is low.
Owner:ZHEJIANG DGX ELECTRONIC TECH CO LTD

Drying device for embedded bathroom cabinet washing machine all-in-one machine

The utility model relates to the technical field of washing machines, and discloses a drying device for an embedded bathroom cabinet washing machine all-in-one machine, the drying device comprises an exhaust pipe and a collection box, the exhaust pipe is arranged between a cabinet and an outer cylinder; the air inlet end of the exhaust pipe is communicated with an outer barrel of the washing machine; the air outlet end part of the exhaust pipe is arranged outside the cabinet body; the position, close to the air outlet end, of the exhaust pipe is lower than the position, close to the air inlet end, of the exhaust pipe. The collecting box is communicated with the exhaust pipe. The drying device has the effect of reducing the possibility that the interior of the cabinet body is moistened by damp and hot gas exhausted by the drying device.
Owner:LUXURY JIA (WUXI) ELECTRICAL APPLIANCES CO LTD +1

Method for anonymization of motion data

This invention relates to a method for anonymizing motion data of traffic participants (1,2) equipped with positioning devices, the traffic participants having communication means for transmitting and receiving data with a backend server (3) and for other traffic participants (2,1). The method is characterized in that motion data is collected in the form of separate time-related and location-related data sets and transmitted to the backend server (3), wherein the transmission of at least a portion of the data sets is indirectly carried out via at least one other vehicle (1,2), and / or, the location associations and / or time associations in at least a portion of the data sets are noise-enhanced prior to transmission.
Owner:MERCEDES BENZ GRP

Dielectric fiber driven gripper

ActiveCN224643661UHighly efficient outputlight in mass
The utility model discloses a kind of dielectric fiber driven grippers, including mounting base and the assembly on the mounting base of several clamping jaw mechanisms, all the clamping jaw mechanisms are distributed along circumference, to realize the automatic centring of object and catch;Each the clamping jaw mechanism includes hingedly connected first clamping jaw and second clamping jaw, and the first dielectric fiber driver for controlling the centripetal or centrifugal motion of the first clamping jaw is connected between the first clamping jaw and the second clamping jaw;The second clamping jaw is assembled on the mounting base.The utility model successfully provides a kind of gripper solution with low driving voltage, simple structure, light weight, high reliability and good grasping adaptability by combining low-voltage dielectric fiber driver with optimized design rigid clamping jaw mechanism, and it has excellent comprehensive performance and good application value.
Owner:HEBEI UNIV OF SCI & TECH

High-temperature-resistant long-life ball bearing cage

The utility model provides a kind of high-temperature-resistant long-life ball bearing retainer, it is related to bearing retainer technical field, and it includes: hold frame body;The retainer body is annular structure, and ball hole is arranged in annular array shape on the inner wall of retainer body;Annular array shape is arranged in the through hole of the outer wall of retainer body, and the through hole is circular hole structure, and the through hole arranged in annular array shape is jointly composed of the heat dissipation structure of retainer body.Utilize nickel-based alloy high melting point (1300 DEG C above) and strong oxidation resistance, so that retainer is not easy to heat softening or oxidation corrosion failure under high temperature working condition (such as industrial kiln, aeroengine), directly prolongs the service life under high temperature environment;Through type circular through hole forms three-dimensional heat dissipation channel, cooperates the forced convection of lubricating medium (oil / gas), and internal heat is quickly taken away.For example in high-speed motor, airflow passes through through hole can make retainer temperature reduce 20%~30%, avoid local overheating to cause material failure.
Owner:TENGDA PRECISION MOLDING CO LTD

An evaporator for an adsorption refrigeration machine and the adsorption refrigeration machine itself.

PendingCN122305689ARealize interactive heat exchangeImprove heat transfer coefficientAdsorption refrigerationCooling effect
This invention discloses an evaporator for an adsorption refrigeration machine and the adsorption refrigeration machine itself, comprising: a cooling medium inlet and a cooling medium outlet; a liquid refrigerant inlet and a gaseous refrigerant outlet; at least one cooling medium flow plate for supplying cooling medium flow, each cooling medium flow plate being connected to both the cooling medium inlet and the cooling medium outlet; and at least one refrigerant flow plate for supplying refrigerant flow, each refrigerant flow plate being connected to both the liquid refrigerant inlet and the gaseous refrigerant outlet. The refrigerant flow plates and cooling medium flow plates are alternately stacked. This evaporator is a plate evaporator. By alternately stacking the cooling medium flow plates and refrigerant flow plates, plate cavities are formed between any adjacent cooling medium flow plates and refrigerant flow plates, creating alternating cooling medium flow spaces and refrigerant flow spaces. This achieves interactive heat exchange between the refrigerant and the cooling medium, resulting in a cooling effect. It has a high heat transfer coefficient, low thermal resistance, and high evaporation efficiency.
Owner:SHENZHEN ENVICOOL TECH

A bipropellant thrust attitude control engine

PendingCN122280739AHighly integrated structurereduce in quantityCombustion chamberSolenoid valve
This invention discloses a dual-component thrust attitude control engine, comprising a mounting plate, a swirling mixer, an igniter, and a combustion chamber nozzle. The mounting plate contains two isolated gas chambers, each with an intake pipe connected to its inlet and an on / off controllable solenoid valve at its outlet. The two inlets of the swirling mixture are connected to the outlets of the two gas chambers, and the outlet of the swirling mixer is connected to the inlet of the combustion chamber nozzle. The swirling mixer is used to swirl and mix the gas input into it before outputting it. The igniter is used to ignite the mixed gas input into the combustion chamber nozzle. The combustion chamber nozzle is used to supply the combusted mixed gas for combustion output. This configuration solves the problem that existing technologies cannot simultaneously achieve compact structure, high mixing efficiency, and excellent thermal management performance.
Owner:SUN YAT SEN UNIV

3D printed eye socket

The application discloses a 3D printing ocular prosthesis platform, which is prepared through the following steps: S1, designing the shape of the ocular prosthesis platform and dividing the shape into regions; S2, selecting a porous structure for the ocular prosthesis platform in each region and determining the voxel size according to the connecting point parameters of the selected porous structure; S3, voxelizing and fitting each region to form a voxelized interface; S4, filling the porous structure selected in step S2 into each corresponding region to complete the modeling of the porous structure in each region; S5, connecting the connecting points on adjacent voxelized interfaces to each other and converting the connecting lines into solid rod models to complete the modeling of the interfaces; S6, merging the models obtained in steps S4 and S5 to obtain a final model of the ocular prosthesis platform; S7, 3D printing to obtain a bioceramic blank; and S8, high-temperature sintering of the blank to obtain a 3D printed ocular prosthesis platform after porcelain forming. The application can obtain a new 3D printed ocular prosthesis platform, which provides technical support for ocular prosthesis repair.
Owner:SICHUAN UNIV

A fixing unit and a fixing device for chip detection

ActiveCN224744997USimultaneous testinglow cost
The utility model provides a kind of for chip detection's fixed unit and fixing device, the fixed unit is three-layer structure, including tray, array card slot disc and cover plate sequentially matched from bottom to top;The tray is frame structure, the frame is formed with the limiting area for placing array card slot disc;Array card slot disc is equipped with the card slot position for limiting and fixing chip arranged in array;The cover plate is used to cover on array card slot disc, and its formed with through-hole array structure.The fixed unit and fixing device structure exquisite, light in weight, low in cost, not only can realize the simultaneous fixation to multiple different size chips, also can obviously improve fixing efficiency, reduce pollution and the risk of chip drop.
Owner:INTEGRA TED SERVICE TECHNOLOGY (SHANGHAI) CO LTD

Lifting device and cleaning robot

ActiveCN224099280Ulight in massOne less drive component reduces massMachine detailsFloor sweeping machinesDrive shaftScrew thread
The lifting device comprises a transmission shaft, a shaft sleeve, an elastic piece, a driving assembly and a rotary mounting part, the transmission shaft comprises an external thread section, a transmission section and a mounting section which are sequentially arranged in the axial direction of the transmission shaft, the shaft sleeve is rotationally mounted on the rotary mounting part and is in threaded connection with the external thread section, and the shaft sleeve is provided with a first limiting part; the elastic piece elastically abuts against the shaft sleeve, so that the shaft sleeve keeps still under the acting force of the elastic piece, and the driving assembly is in transmission connection with the transmission section to drive the transmission shaft to rotate, so that the transmission shaft moves back and forth relative to the shaft sleeve under the interaction of the shaft sleeve and the external thread section and rotates in the first direction. When the tail end of the external thread section moves to the first limiting part, the tail end of the external thread section abuts against the first limiting part in a transmission mode so as to synchronously drive the shaft sleeve to rotate in the first direction. According to the technical scheme, the lifting operation of the cleaning assembly can be driven only through the driving assembly, and the cleaning assembly can be driven to rotate.
Owner:SHENZHEN SILVER STAR INTELLIGENT TECH CO LTD

Automobile rear seat cushion frame

The utility model relates to the technical field of automobile seat, especially a kind of automobile rear seat cushion frame, it is convenient for passenger to adjust cushion angle, improve passenger comfort, and simple structure is lighter in quality, it is convenient to install and produce, simultaneously reduce vehicle weight, in addition, there are also reserved hole and mounting bracket on cushion welding assembly, it is convenient to fix the bottom of cushion when installing cushion, improve cushion installation convenience, in turn improve production efficiency;Including cushion welding assembly;Still including supporting mechanism and adjusting mechanism, supporting mechanism and adjusting mechanism are all installed on cushion welding assembly;The supporting mechanism cooperates cushion welding assembly and supports passenger, and adjusting mechanism adjusts the angle of cushion welding assembly.
Owner:NINGBO RUNNAN ELECTROMECHANICAL IND CO LTD

High-load machine tool base

This utility model discloses a high-load-bearing machine tool base, including a top plate, a bottom plate, side plates, and supporting partition plates. The two ends of the top plate and the bottom plate are connected by the side plates. The side plates and the supporting partition plates are vertically arranged and perpendicular to each other. The supporting partition plates are evenly distributed between the top plate and the bottom plate along the length of the top plate. Each supporting partition plate includes an arc-shaped support part, a vertical support part, and an inclined support part. The two ends of the arc-shaped support part are connected to the side plates on both sides, respectively. The upper end of the vertical support part is connected to the top plate, and the lower end is connected to the bottom plate. The inclined support parts are located on both sides of the vertical support parts, with the upper end connected to the top plate and the lower end connected to the bottom plate. The inclined support parts gradually incline towards the vertical support parts from top to bottom. This utility model has a simple structure, is easy to manufacture, and has high structural strength, effectively improving the load-bearing capacity of the base.
Owner:ZHANGZHOU DONGGANG PRECISION MASCH CO LTD

cover film

The present invention provides a cover film having a support and a polymer layer, which can suppress mass reduction and peeling at the bonding site between the cover film and the adherend when a laminate of the cover film and the adherend is stored for a long period of time. The cover film of the present invention is a cover film having a support and a polymer layer containing a polymer, the surface haze of the cover film is 0.5 to 50%, and the content of an ester compound satisfying prescribed requirement 1 in the support is 1% by mass or less relative to the total mass of the support.
Owner:FUJIFILM CORP

A method for reducing particle size segregation in a multi-stage flat lay of a mixed material

ActiveCN117887958BNumber of solutionsSolve the problem of marginal distributionMetallurgyMixed materials
The present application belongs to the technical field of sintering mixed material batching, and relates to a method for reducing particle size segregation of mixed material in a multi-stage flat laying manner. According to the required batching ratio, each kind of material is divided into 3-4 stages according to particle size, the first stage is for the material with the largest particle size and the most segregation, the second stage is for the dust removal ash with fine particle size and large dust, and the third and fourth stages are for the material with uniform particle size. Before taking the material, the head and tail cutting operation is implemented, and the mixed material in this area is returned to the top of the new pile. The present application adopts the segmented flat laying manner, solves the particle size segregation, adds the dust removal ash in the second stage, and solves the problem of dust diffusion. Each bin can be used alternately, solving the problem of the number of bins. At the same time, small materials can be added in a certain stage, realizing the recycling of iron-containing resources.
Owner:SD STEEL RIZHAO CO LTD

A high speed rotating tester guard system

This invention belongs to the technical field of aero-engine experimental equipment, and discloses a high-speed rotating test chamber protection system, including a canopy, an upper protective plate, a radial buffer layer, a radial containment layer, and a base plate. The radial containment layer is cylindrical, and the canopy, radial containment layer, and base plate form the test chamber. The upper protective plate is detachably connected to the canopy. The radial buffer layer is cylindrical and located below the upper protective plate, with its bottom contacting the base plate. The radial buffer layer is used for energy absorption, debris retention, and preserving the debris ejection path. This invention achieves the functions of energy absorption, debris retention, and preserving the debris ejection path by setting a radial buffer layer inside the test chamber, facilitating the replacement and removal of retained debris. When the radial buffer layer is penetrated by debris, the radial containment layer can further reduce the kinetic energy of the debris while resisting the radial ejection of high-speed debris, protecting the safety of test personnel. Furthermore, each protective cylinder can be directly replaced if damaged.
Owner:AECC HUNAN AVIATION POWERPLANT RES INST

A feeding, leveling and anti-wrinkle device for non-woven fabric production

The utility model belongs to the non - woven fabric production technical field especially is a kind of non - woven fabric production is with the feeding leveling anti - wrinkle device, including the feeding frame of non - woven fabric feeding use, two guide rollers are rotatably connected on the front and rear side inner wall of feeding frame, the support plate is fixedly connected on the front and rear side inner wall of feeding frame, the tensioning mechanism is provided on the support plate, the front side fixed connection of feeding frame has the cover, dust suction heating mechanism is arranged between cover and feeding frame. The utility model structure design is reasonable, can first non - woven fabric upper and lower surface dust and lint and other impurities are cleaned, avoid under hot pressing dust and lint to be pressed into non - woven fabric and reduce non - woven fabric quality, through hot pressing and two spin direction opposite open width, non - woven fabric can be pulled left and right and pulled before and after, avoid non - woven fabric to wrinkle, guarantee the flatness when non - woven fabric feeding, make anti - wrinkle effect better.
Owner:CHANGSHU HONGYUAN NONWOVEN PROD CO LTD

Pig remote inventory management system

The invention relates to the technical field of agricultural internet of things, and discloses a pig remote inventory management system which comprises a remote inventory management system body, the remote inventory management system body comprises a software part, an algorithm part and an equipment part, and the software part comprises a platform end data storage part, a picture storage part, a data display part and a three-party interface. APP end picture shooting, APP end picture storage and APP end result display are carried out; the platform end data storage is used for storing various data types generated in the operation process of the storage system; the picture storage is used for storing pictures shot by a camera for recognition algorithm and data display; the data display is used for displaying the stored data through an interface or an instrument panel so as to be checked by a user. The product provided by the invention is simple to operate, can be operated by people who can use mobile phones, is light in weight, is convenient for farmers to carry and use, provides off-line storage, and can be used in farms with poor network environments.
Owner:QINGDAO JIANGHAI ZHONGLIAN TECH CO LTD

A low-volume methane / VOCs co-recovery system, method and application

This invention relates to the field of organic waste gas recovery and resource utilization technology, and particularly to a low-volume methane / VOCs co-recovery system, method, and application in oil and gas development processes. The system includes a waste gas generating device, a waste gas collecting device, a waste gas conveying device, and an adsorption storage device connected in sequence. The adsorption storage device is filled with layered adsorption materials, which include a layered adsorption layer of heavy components, a layer of intermediate components, a layer of light components, and a protective bed, stacked sequentially. This invention, based on the adsorption storage concept and utilizing the inherent potential energy of the oil and gas development process, achieves efficient recovery of methane / VOCs from intermittent emission sources, reducing greenhouse gas methane and VOCs emissions and improving oil and gas product yields.
Owner:PETROCHINA CO LTD +1

Fixed clearance return stroke type high-speed axial plunger pump

PendingCN121875924AAvoid excessive tilt or even detachment of the swash plateEnsure a good fitPositive-displacement liquid enginesPump installationsImpellerReciprocating motion
The invention provides a fixed clearance return stroke type high-speed axial plunger pump, and relates to the field of axial plunger pumps, the fixed clearance return stroke type high-speed axial plunger pump comprises a shell and a main shaft capable of rotating in the shell, the main shaft drives a cylinder body and an impeller to rotate, an axial channel is arranged in the cylinder body, a pre-tightening spring is arranged in the axial channel and provides pre-tightening force for a return stroke disc, and a plunger body can reciprocate in the axial direction. The end part of the plunger body is matched with the sliding shoe to slide on the swash plate, and a return stroke assembly is further arranged and comprises a return stroke plate, a fixed gap pressing plate and a fixing device; the return plate is limited between the fixed-gap pressing plate and the sliding shoe and arranged with the fixed-gap pressing plate in a spaced mode, and the fixing device is used for fixing the fixed-gap pressing plate to the swash plate. The return stroke assembly with the fixed gap is adopted, the problem that the sliding shoe excessively inclines and even disengages in the return stroke process is avoided, meanwhile, the return stroke disc utilizes the pre-tightening force of the center spring, and it is ensured that the sliding shoe is flexibly attached to and sealed with the swash plate under the low-speed working condition; the fixed gap pressing plate balances the centrifugal overturning moment of the sliding shoe through physical limiting under the high-speed working condition.
Owner:YANSHAN UNIV

Lightweight screw machine motor structure

The utility model discloses a lightweight screw machine motor structure. The motor structure comprises a machine head, a motor cylinder, a stator assembly, a rotor assembly and an air guide assembly. The motor cylinder is made of a light metal material, sleeves the outer side of the stator assembly and is fixedly connected with the machine head; the rotor assembly is rotatably arranged in the stator assembly, and a rotating structure for driving gas to flow is arranged on the rotor assembly; the air guide structure is arranged at the end, away from the machine head, of the motor barrel and used for guiding external air to flow in in the axial direction of the motor barrel. A plurality of heat dissipation channels extending in the axial direction are formed in the motor cylinder, an air flowing path matched with the rotating structure is formed, and air is driven by the rotor assembly to flow along the heat dissipation channels and is exhausted through the end, away from the air guide structure, of the motor cylinder. Through the arrangement, the heat dissipation efficiency of the motor is effectively improved, the overall quality is reduced, and the problems that a traditional screw motor is low in heat dissipation efficiency and heavy in structure are solved.
Owner:XINLEI COMPRESSOR CO LTD

A marine electric auxiliary turbocharger motor bracket structure

ActiveCN224648626USolve the accuracy problemTroubleshoot disassembly
This utility model discloses a motor bracket structure for a marine electric auxiliary turbocharger, enabling high-precision installation of the motor housing on the electric auxiliary turbocharger. It includes a muffler, a motor bracket, an air intake housing, an air exhaust housing, and a motor housing. One end of the motor bracket is fixedly connected to the air exhaust housing, and the other end is fixedly connected to the muffler. The motor bracket has an internal bracket hub, which, along with the muffler and air intake housing, forms an airflow channel. It also includes multiple motor fixing beams, evenly distributed circumferentially within the inner holes of the bracket hub. Each motor fixing beam is fixedly connected to the bracket hub via a beam support plate. The motor fixing beams have motor housing mounting holes and motor housing limiting bosses. The motor housing has a motor housing mounting platform and a motor threaded hole. The motor housing mounting platform is axially positioned relative to the motor housing limiting boss. The motor housing mounting holes and the motor threaded hole are fixedly connected by motor set bolts.
Owner:CHONGQING JIANGJIN SHIPBUILDING IND