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1455 results about "Spur gear" patented technology

Spur gears or straight-cut gears are the simplest type of gear. They consist of a cylinder or disk with teeth projecting radially. Though the teeth are not straight-sided (but usually of special form to achieve a constant drive ratio, mainly involute but less commonly cycloidal), the edge of each tooth is straight and aligned parallel to the axis of rotation. These gears mesh together correctly only if fitted to parallel shafts. No axial thrust is created by the tooth loads. Spur gears are excellent at moderate speeds but tend to be noisy at high speeds.

Environmental monitoring device for air pollution

The present invention belongs to the technical field of environmental monitoring, in particular to an environmental monitoring device for air pollution, comprising a monitoring frame, a monitoring shell arranged on a top end of the monitoring frame and an environmental monitor fixedly installed inside the monitoring shell through a connecting plate. An air sampling assembly is installed inside the environmental monitor; the air sampling assembly comprises air intake covers, and an electric push rod, a rack I, a gear I, a spur gear, an internal gear, a rotating disk, limiting blocks, limiting rods, a cross limiting track, an L-shaped frame and a strip-shaped plate which are used for driving the air intake covers. A cleaning assembly is installed on the air sampling assembly.
Owner:SHANDONG NORMAL UNIV

Spur arc gear engagement pair, and design method

PCT designated stage expiredWO2025025511A1Geometric CADPortable liftingInvolute gearGear wheel
The present invention relates to the technical field of gear designs. Particularly disclosed are a spur arc gear engagement pair, and a design method. The spur arc gear engagement pair comprises two spur gears engaging with each other, wherein the two spur gears are spur arc gears, and the contact mode of the two spur arc gears is point contact. The design method comprises the following steps: first, determining a virtual auxiliary involute gear; then, selecting a smooth curve on the virtual auxiliary involute gear to serve as an engagement trajectory line Γ1; next, by means of coordinate transformation, solving a pairing engagement curve Γ2 engaging with the engagement trajectory line Γ1; next, by means of sweeping a normal section tooth profile Γ2(t2) along the pairing engagement curve Γ2, constructing a tooth surface Σ2 of a spur arc gear II; and by means of sweeping a normal section tooth profile Γ1(t1) along the engagement trajectory line Γ1, constructing a tooth surface Σ1 of a spur arc gear I. The present solution solves the problem in the prior art of arc gears failing to achieve spur engagement; and the designed gear pair has a low sliding rate and has adaptability to axis errors and center distance changes.
Owner:CHONGQING UNIV OF ARTS & SCI

Spur gear shape-free measurement method based on single-group line structured light

The invention discloses a straight gear shape-free measurement method based on single-group line structured light. The method comprises the following steps: constructing an optical platform coordinate system, carrying out line structured light coordinate system calibration through a spherical calibration body, and calibrating the rotation center of a precision turntable; installing a measured straight gear, establishing a straight gear coordinate system, and adjusting the position of the linear structure optical measuring head, so that the measuring field of view of the linear structure optical measuring head covers a root circle to an addendum circle of the straight gear; the straight gear is installed on a precision rotary table, the straight gear is driven to rotate at a constant speed, a linear structure optical probe scans and collects straight gear contour point cloud data and circular grating angle information, and tooth surface three-dimensional point cloud data is obtained; based on the three-dimensional point cloud data of the tooth surface, extracting an addendum circle, a dedendum circle and an involute tooth profile, and calculating spur gear parameters; performing reverse three-dimensional shape modification tooth surface identification on the shape modification straight gear to generate a three-dimensional deviation diagram; and outputting a measurement result and printing a report. The problems of shape-free rapid measurement, modification tooth surface identification and tooth surface three-dimensional deviation characterization of the straight gear with unknown basic parameters are solved.
Owner:XIANGTAN UNIV

Release lever mechanism for server chassis sleds

A compact lever mechanism for assisting in removing and inserting a sled in a chassis is disclosed. The lever mechanism has a longitudinal lever member. A spur gear having gear teeth is coupled to one end of the longitudinal lever member. An ejector component is rotatably connected to the sled. The ejector component has a frame defined by an internal gear support, a first support arm, and a second support arm. The spur gear is positioned within the frame and engages the internal gear support to rotate the ejector component. The first support arm includes a tab engaging a flange of the chassis to apply force to remove the sled from the chassis when rotated in a first direction. The second support arm includes a second tab engaging a cutout in the chassis to apply force to insert the sled in the chassis when rotated in a second direction.
Owner:QUANTA COMPUTER INC

Model vehicle vertical drive system

A radio-controlled model vehicle is provided including a model vehicle chassis, a vertically mounted motor, and a rear axle, configured to pivot in a vertical direction relative to the model vehicle chassis via one or more rear axle linkages. The rear axle also includes a vertical rear axle differential. The model vehicle further includes a gear reduction transmission including a spur gear comprising spur gear teeth offset from a spur gear center portion, and a pinion gear engaged with the spur gear teeth. In addition, the model vehicle includes a vertical, extendable driveshaft that has one end attached to the spur gear center portion and another end attached to the rear axle differential. Wherein the driveshaft extends through the spur gear and the motor powers propulsion wheels coupled to the rear axle via the gear reduction transmission, driveshaft and rear axle differential.
Owner:TRAXXAS

Conveying device and conveying method for aluminum profile production

The invention relates to the technical field of aluminum profile conveying, in particular to a conveying device for aluminum profile production and a conveying method.The conveying device comprises two side coamings, a conveying component and a balance weight component, the two side coamings are symmetrically distributed front and back, the conveying component is located between the front side coaming and the back side coaming, and the balance weight component is located between the two side coamings. The aluminum profile is driven by the conveying component to be conveyed rightwards, the spur rack is pulled to move downwards under the gravity action of the counterweight component, the spur rack moves downwards to drive the spur gear meshed with the spur rack to rotate, the spur gear rotates to further drive the lead screw to rotate, and the lead screw rotates to generate a thread thrust effect with an inner thread hole. According to the aluminum profile conveying device, the telescopic columns are driven to move along the telescopic grooves, then the telescopic columns slide outwards along the interiors of the telescopic grooves and then drive the positioning blocks to move together, the aluminum profile is clamped in the front-back direction due to the fact that the front positioning block and the rear positioning block move, and therefore the aluminum profile cannot slip when the height difference exists in conveying, and the conveying effect is good.
Owner:WEIFANG GUOYI ALUMINUM

Quick-charging energy storage device

The invention discloses a quick-charging energy storage device, a box body is hollow and is in a vertical column shape, the box body is composed of a base, a shell and a top plate in sequence from bottom to top, the base, the shell and the top plate are all made of flame-retardant materials, a plurality of moving seats are placed at the top end of the base, and the moving seats can horizontally move along the top end of the base; a vertical frame is fixed to the top end of each movable seat, and a battery pack is placed in each frame. During quick charging, a top plate is manually pushed downwards, and a large straight spur gear and a small straight spur gear can be rotated by utilizing a guide rod, a driving groove and a sleeve, so that a shell and a frame can perform diffusion movement; and the gaps between the shells, between the shells and the frames and between the frames are increased, namely, the ventilation space is increased, so that good ventilation and heat dissipation effects can be realized by utilizing the rotation of the electric fan, and the stability of quick charging is improved.
Owner:ZAOZHUANG LUYUAN ELECTRICAL APPLIANCE EQUIP CO LTD

Adjustable wire drawing forming machine for cable preparation

PendingCN119634472APrevent deviationpath stabilityCopper wireGear wheel
The invention discloses an adjustable cable preparation wire drawing forming machine, and relates to the technical field of cable wire drawing forming machines, the adjustable cable preparation wire drawing forming machine comprises a shell, a fixing block is rotatably connected in the shell, a round rod is fixedly connected to the outer side of the fixing block, a spur gear is fixedly connected to the outer side of the round rod, and a through hole is formed in the fixing block; an arc block is fixedly connected to the inner wall of the through hole, a positioning assembly is arranged in the middle of the interior of the fixing block, a rotating wheel is slidably connected to the through hole, a fixing plate is rotatably connected to the outer side of the rotating wheel, an elastic plate is fixedly connected to the outer side of the fixing plate, and a guide assembly is fixedly connected to the end, away from the rotating wheel, of the fixing plate. According to the adjustable wiredrawing forming machine for cable preparation, the guide assembly makes contact with the outer side of a copper wire, the copper wire can advance in the preset direction in the wiredrawing process, deviation or bending cannot occur, a stable path is provided for wiredrawing of the copper wire, and the copper wire is prevented from deviating from the correct path in the wiredrawing process.
Owner:NINGLIAN CABLE GRP CO LTD

Positive drive differential with pinion disconnect

A positive drive differential assembly including a differential with an input pinion configured to operably engage with a drive shaft so as to permit the drive shaft to rotate the pinion. A bi-directional overrunning clutch assembly is configured to transmit torque between the pinion and two drive axle segments. A pinion disconnect assembly is provided for controlling transmission of rotation to the pinion and including a rotary coupler. A linear actuator is connected to the rotary coupler and configured to translate the rotary coupler between connected and disconnected positions.
Owner:HILLIARD CORP

Brake pad salient point detection device

The invention discloses a brake pad salient point detection device, and relates to the technical field of brake pad detection, the brake pad salient point detection device comprises two supports, the inner side of each of the two supports is rotatably connected with a rotating roller, the outer wall of each of the two rotating rollers is fixedly connected with a first straight gear, and the outer walls of the two first straight gears are provided with chains; the supporting rod is fixedly connected to the inner side of the support, the inner side of the supporting rod is fixedly connected with an auxiliary frame, the top of the auxiliary frame is fixedly connected with four fluorescence detection machines and four coating frames at equal intervals, and the four fluorescence detection machines and the four coating frames are arranged in a staggered mode. According to the brake pad detection device, through cooperation of parts such as a worm gear and the like, the brake pad can be subjected to intermittent rotating detection through the four sets of fluorescence detection machines and the four connecting bases which are sequentially arranged, so that four-face detection can be achieved in the moving process of the brake pad, and the brake pad detection efficiency is improved.
Owner:ZAOYANG SHENLONG FRICTION MATERIAL CO LTD

Air-guiding element and motor vehicle comprising an air-guiding element

An air guiding element with a surface element and a longitudinally displaceable carrier element. The surface element is articulated to the carrier element in a movably mounted manner, furthermore with a drive element with a gearwheel. The carrier element can be driven in a longitudinally displaceable manner by the gearwheel transmission in such a way that a rack of the gearwheel transmission is connected to the drive element in a drivable manner via a spur gear and the rack is in driving connection with the carrier element.
Owner:DR ING H C F PORSCHE AG

Chamfering mechanism for precision gear machining

The invention relates to the technical field of gear machining, in particular to a chamfering mechanism for precision gear machining, which comprises a floating unit, a chamfering unit and an adjusting unit, the floating unit is fixedly mounted through a fixing support, the chamfering unit is fixedly arranged on the surface of the floating unit, and the adjusting unit is fixedly arranged on the surface of the floating unit. Through the two chamfering tool bits which are oppositely arranged up and down, synchronous chamfering machining can be conducted on the upper tooth edge and the lower tooth edge of the gear, the chamfering efficiency of the single gear is improved, meanwhile, the axis of each chamfering tool bit is parallel to the axis of the gear, and it can be guaranteed that the tooth edge angle of the gear is always consistent; the angle of the upper path guide rail and the angle of the lower path guide rail are set through the adjusting unit, so that the gear chamfering mechanism can be used for chamfering straight-tooth gears and different sharp-tooth gears, the overall use range is wide, and functionality is high.
Owner:JINGJIANG SHUANGXING SPECIAL STEEL FACTORY

Electric drive device for a vehicle axle

ActiveUS12247649B2Drive wheelGear wheel
An electric drive device for a vehicle axle includes first and second electric engines having first and second rotors, respectively. A transmission has a first and second input shafts arranged coaxially with the first and second rotors, respectively, and an output shaft arranged in parallel with the first and second input shafts. An axle drive has a differential gear permanently meshing with at least one drive gearwheel connected to the at least one output shaft in a manner fixed against rotation. A first switchable spur gear pairing and a second spur gear pairing respectively couple the first and second input shafts with the differential gear in a torque-transmitting manner. When viewed in an axial direction along the at least one output shaft, the first electric engine, the first spur gear pairing, the at least one drive gearwheel, the second spur gear pairing, and the second electric engine are arranged one after the other in the specified order.
Owner:MERCEDES BENZ GROUP AG

Outdoor box-type substation

The invention belongs to the technical field of box-type substations, and discloses an outdoor box-type substation, which comprises a box-type substation main body, a transformation cabinet body is fixedly connected in the box-type substation main body, a transformation element is fixedly connected in the transformation cabinet body, and a plurality of wire interfaces are fixedly connected to the bottom of the transformation element. Air in an air pressure bin expands due to temperature rise and heating, so that a sealing piston is pushed upwards to drive a rotating rod to be pushed upwards, the rotating rod moves to drive a second straight gear to rotate, and the second straight gear rotates to drive a first straight gear meshed with the second straight gear to rotate; the first straight gear rotates to drive the interface nut to rotate, the interface nut rotates to release threaded connection with the connecting wire, and the connecting wire falls off due to gravity and is disconnected with the element, so that power failure and protection of the internal element are realized, and great loss is prevented.
Owner:ZHANSHUN ELECTRIC POWER GRP CO LTD

Press-fit device of thrust rod ball pin and thrust rod

InactiveCN119238079AImprove press fit efficiencyeasy to useMetal working apparatusGear wheelMachine
The invention relates to the technical field of thrust rod ball pin press-fit, in particular to a thrust rod ball pin press-fit device and a thrust rod, the thrust rod ball pin press-fit device comprises a bottom box and a workbench fixedly connected to the bottom box, a punching machine is mounted at the top of the workbench, a placement seat is fixedly connected to the top of the workbench, a guide seat is fixedly connected to the top of the workbench, and an electric sliding rail is slidably mounted on the guide seat. After a thrust rod is placed, an electric rotating rod is started to drive a straight gear to rotate reversely, the straight gear drives an annular disc to rotate forwards through an outer gear ring, the annular disc drives three contact rods to move in the direction close to one another through inclined holes, and the contact rods drive three positioning frames to move in the direction close to one another through L-shaped plates and connecting springs; the three positioning frames center and position the ball seats of the thrust rods, under the action of the connecting springs, the positioning frames can center and position the ball seats of the thrust rods of different sizes to complete press-fit, manual correction and replacement positioning work are not needed, the operation continuity is high, convenience is achieved, and therefore the press-fit efficiency is improved.
Owner:YANTAI MINGRUI ENERGY SAVING TECH CO LTD

Steel machining rolling mill

The steel machining rolling mill relates to the technical field of rolling mills and comprises a rolling mill frame body, a lower rolling set and an upper rolling set, rotating rods are arranged at the two ends of an opening in the front side of the rolling mill frame body, mounting grooves are formed in the surfaces of rod bodies of the rotating rods, and a cooling liquid box and a lubricating liquid box are fixedly mounted in groove cavities of the two mounting grooves correspondingly; spur gears are fixedly installed at one ends of the rotating rods, racks are arranged in clamping cavities of the two spur gears, the racks are meshed with the spur gears on the two sides at the same time, and a driving assembly is connected to one side of each rack. By arranging the cooling liquid box, the lubricating liquid box and the spraying head, structural components of the upper rolling set and the lower rolling set can be cooled and lubricated, and the situation that the service life is shortened due to the fact that the temperature is too high in the operation process and abrasion of the components is accelerated due to lack of lubrication is avoided; the driving assembly enables structural components of the upper rolling set and the lower rolling set to evenly receive cooling liquid and lubricating liquid.
Owner:TIANJIN ZHONGZHONG TECH ENG CO LTD

Abrasive flow polishing device and method for gear tooth surface homogenization

PendingCN120862541AEdge grinding machinesPolishing machinesGear wheelAbrasive flow machining
The invention provides an abrasive flow polishing device and method for gear tooth surface homogenization. According to the method, tooth-shaped drainage pieces with the same shape as the gear are installed at the two ends of the upper portion and the lower portion of the gear, drainage section design is introduced, an abrasive flow medium path runner model is constructed, main parameters influencing an experiment are sampled and grouped through a Latin hypercube sampling method, abrasive flow polishing simulation is conducted in a grouped mode, and a Gaussian regression process is utilized to obtain an abrasive flow polishing simulation result. Selecting the minimum root-mean-square error of each group of PiVi data, determining the group of experimental parameters, obtaining a group of abrasive flow machining process parameters of optimal inlet pressure, back pressure and drainage section length, and finally guiding the experiment; according to the method, the influence of the inlet effect is relieved, the abrasive flow medium path runner model is constructed, a set of optimal abrasive flow machining process parameter combination is obtained, and the method is suitable for spur gears and bevel gears and high in universality.
Owner:CHONGQING UNIV

Prestress tension anchorage device

The invention discloses a prestress tensioning anchorage device, and relates to the field of prestress construction technical equipment, the prestress tensioning anchorage device comprises a first shell, the middle of the first shell is provided with a second anchor hole for a middle steel strand to penetrate through, and the outer ring of the first shell is annularly provided with a plurality of first anchor holes for outer ring steel strands to penetrate through and bolt holes; a clamping mechanism for fixing a middle steel strand penetrating through the second anchor hole is rotationally arranged in the middle of one side of the first shell, and a plurality of fixing mechanisms for fixing an outer ring steel strand penetrating through the first anchor hole are rotationally arranged at the position, corresponding to the bolt holes, of the first shell. The spur gear is rotated to drive the gear nut to rotate, the screw and the hollow screw are driven to enable the outer ring clamping piece and the middle clamping piece to fix the steel strand, after the spur gear continues to be rotated to be further tightened, a metal-based repairing agent is poured into the grouting hole for reinforcement, the device is easy and convenient to operate, the steel strand can conveniently penetrate into the anchorage device, the construction efficiency is improved, and the construction period is shortened. And the stability of the anchoring device is enhanced.
Owner:HUNAN CHANGDA CONSTR GRP CO LTD

Long-life brushless motor with thermal protection

The invention discloses a long-life brushless motor with thermal protection, and belongs to the technical field of brushless motors, the long-life brushless motor is provided with a motor shell with a protection function, the inner surface of the motor shell is connected with a circuit, the middle section of the inner surface of the circuit is provided with a rotor, and the right side of the outer surface of the motor shell is provided with an end cover; comprising a connecting piece installed on the left side of the outer surface of the motor shell and installed on the outer surface of an end cover, and the left side of the outer surface of the motor shell is connected with a planetary gear set. A first heat dissipation piece and a second heat dissipation piece which are assembled by a motor shell are arranged to absorb heat generated by the brushless motor, and the position of a fan is adjusted through gas expansion between a heated bin and an air bag, so that meshing between a straight tooth gear and an inner gear is controlled, the fan is controlled to rotate, and heat dissipation is formed on the first heat dissipation piece; and through the cooperation of the first heat dissipation piece and the heat dissipation pipe, the heat dissipation effect can be further improved through the use of the refrigeration bin.
Owner:RUIAN BEILI MICRO MOTOR CO LTD

Straight gear meshing rigidity calculation method considering machining process factors and abrasion factors

PendingCN119337514AGeometric CADSustainable transportationGear wheelLubrication theory
The invention provides a straight gear meshing stiffness calculation method considering machining process factors and wear factors, and relates to the field of gear mechanical analysis. The method comprises the following steps: according to the initial roughness of a gear, constructing a gear rough morphology representation model based on a W-M function of a fractal theory, and obtaining the initial rough morphology of the tooth surface of the straight gear; based on an Archard wear model, constructing a gear tooth surface rough morphology evolution model, and obtaining an evolved tooth surface rough morphology; deducing the relationship between the characterization parameters of the evolved tooth surface rough morphology and the power spectrum density of the gear surface rough morphology; on the basis of an energy method, a fractal theory and an elastohydrodynamic lubrication theory, a straight gear meshing stiffness calculation model considering a lubricating oil film and tooth surface abrasion rough morphology evolution is constructed, the straight gear meshing stiffness under different meshing periods is obtained, and the influence of the tooth surface abrasion rough morphology evolution and the lubricating oil film on the straight gear meshing stiffness is comprehensively considered.
Owner:UNIV OF SCI & TECH BEIJING

Rotary clamping type carrying mechanical claw

The utility model discloses a rotary clamping type carrying mechanical claw, which relates to the technical field of machinery and comprises a support frame, rotating shafts are rotatably connected to two sides in the support frame, driven bevel gears are fixedly mounted on the outer surfaces of the rotating shafts, and clamping claws are fixedly mounted on the outer surfaces of the rotating shafts. The middle of the supporting frame is rotationally connected with two driving bevel gears meshed with the driven bevel gears respectively, a driving mechanism for driving the two driving bevel gears to reversely rotate at the constant speed is fixedly installed on the upper surface of the supporting frame, and the driving mechanism comprises a transmission box with a self-locking function. The transmission case is reasonable in design structure, the driving straight gears at the two output ends of the transmission case can reversely rotate at a constant speed through transmission of the transmission case by working of the power source, and the driven straight gears are driven to reversely rotate at the constant speed. The two coaxial driving bevel gears are arranged to drive the driven bevel gear with the clamping jaw to rotate, and then tightening of the clamping jaw can be achieved.
Owner:HANGZHOU RUIPO INTELLIGENT TECH CO LTD

Preheating device for wire and cable production

The utility model relates to the technical field of cable production, and discloses a preheating device for wire and cable production, which comprises a preheating device body and a mounting shell communicated with one side of the preheating device body, and further comprises a stepping motor bolted at the top of the mounting shell, and an output shaft of the stepping motor is fixedly connected with a connecting shaft; one side of the surface of the connecting shaft is fixedly sleeved with a spur gear; according to the cable cleaning device, the spur gear is matched with the gear ring, so that the surface of a cable can be cleaned by the scraper, the surface of the cable is cleaner, the cable cleaning effect of the cable cleaning device is not improved, the situation that the cable is polluted by foreign matters is reduced, and the service life of the cable is prolonged. And meanwhile, more water can be blown away under the cooperation of the blades and the cleaning mechanism, so that water on the surface of the cable is reduced, the preheating effect of the device on the cable is effectively improved, and the problems that when an existing device is used, the cleaning effect on the cable is poor, and the preheating effect is poor are solved.
Owner:XINGYUAN CABLE GRP CO LTD

Graphitization furnace convenient to clean

The invention discloses a graphitization furnace convenient to clean, and relates to the field of graphitization furnaces, the graphitization furnace comprises a bottom plate, a pair of vertical plates and a furnace body; the vertical plates are fixedly installed on the bottom plate, the furnace body is rotatably installed between the vertical plates, an annular cover is installed in the furnace body, a straight gear ring is rotatably installed in the annular cover, a first motor is fixedly installed on the side wall of the furnace body, and a driving bevel gear is fixedly installed at the driving end of the first motor. A driven bevel gear meshed with the driving bevel gear is rotatably mounted in the annular cover, a straight gear meshed with the straight gear ring is fixedly mounted on the driven bevel gear, a mounting rod is mounted on the straight gear ring, and a scraping plate is mounted on the mounting rod. If the cleaning is not performed, the graphitization effect of the graphitization furnace can be influenced, and if the manual cleaning is performed, time and labor are wasted, so that the subsequent graphitization efficiency is influenced.
Owner:SHENYANG ALUMINIUM MAGNESIUM INSTITUTE

Method for optimizing meshing rigidity of involute spur gear for modifying shape based on dynamic transmission error

The invention discloses an involute spur gear meshing stiffness optimization method for modification based on dynamic transmission errors, which is characterized in that the involute tooth profile is accurately modeled, the meshing stiffness is calculated by adopting a Weber energy method, and the impact generated by single-tooth and double-tooth meshing alternation is reduced through tooth profile modification, so that the transmission errors are reduced, and the involute spur gear meshing stiffness is optimized. The technology is applied to an idle gear system, and the meshing rigidity is iteratively optimized by establishing an idle gear nonlinear kinetic equation and analyzing dynamic transmission errors responded by the system until the requirements for transmission precision and design strength are met.
Owner:JIANGSU OCEAN UNIV

Calculation method of power loss of gears under the coexistence of wind resistance and oil stirring

The present invention discloses a method for calculating the power loss of a gear under a state where wind resistance and oil stirring coexist. By introducing a wind resistance contribution factor coefficient and an oil-gas ratio model, a theoretical analysis method is proposed to predict the relevant load-independent power loss of a single spur / helical gear that is partially immersed in lubricating oil and rotates. The method includes: calculating the wind resistance torque of the high-speed gear under a state where wind resistance and stirring behavior coexist based on the wind force contribution factor coefficient and the oil-gas ratio model; calculating the stirring resistance torque of the high-speed gear under a state where wind resistance and stirring behavior coexist; and summing the wind resistance torque and the oil stirring resistance torque to obtain the total load-independent power loss of the high-speed gear. The present invention can predict the load-independent power loss of spur gears and helical gears under high-speed conditions, and improves the accuracy of the load-independent power loss analysis of spur / helical gears.
Owner:CENT SOUTH UNIV +1

Energy collecting device based on inerter damper

The utility model discloses an energy collecting device based on an inerter damper. The energy collecting device comprises a box body; the sliding rail is arranged at the bottom of the box body, a sliding block is connected to the sliding rail, and a straight rack is fixedly connected to the sliding block; a first gear set, a second gear set, a third gear set, a fourth gear set and an eighth gear; the permanent magnet direct-current generator is arranged on the outer side of the box body, the permanent magnet direct-current generator is connected with the circuit module in series, and the circuit module is connected with the storage battery in series; the flywheel is fixedly connected to the fifth transmission shaft and located on the outer side of the box body. The fifth transmission shaft is connected with a rolling shaft of the permanent magnet direct current generator through an elastic coupler. According to the inerter shock absorber, the problem of energy loss of the inerter shock absorber is solved, and integration of shock absorption energy consumption and energy storage of the storage battery is achieved.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Loader stirring device convenient for unloading

The utility model relates to the technical field of loaders, in particular to a loader stirring device convenient for unloading, which is characterized in that one end of a loader body is rotatably connected with a bucket body, a stirring rod is rotatably connected in the bucket body, the outer surface of the stirring rod is sleeved with a first inner gear, and two straight gears are rotatably connected in the bucket body; the outer surface of the stirring rod is rotationally connected with a connecting frame, the stirring rod drives a first inner gear to rotate in the rotating process, the first inner gear is meshed with a straight gear to rotate in the rotating process, the two straight gears are meshed to rotate, and the two straight gears are meshed to drive the connecting frame to rotate in the direction opposite to the rotating direction of the stirring rod. The scraper blade is driven by the connecting frame to extrude and push out edge materials outwards, the situation that the materials remain in the bucket body in the discharging process is effectively reduced, it is ensured that discharging is thorough, discharging work is completed more quickly and conveniently, the working efficiency is improved, and time is saved.
Owner:TANGSHAN KANGSIJIA ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Gear assembly, gearbox housing and working machine

The present invention relates to a transmission arrangement (2) for a machine tool comprising a bevel gear stage (11), a spur gear stage (8), and a transmission housing (29). The spur gear stage (8) has a drive pinion (9) and a spur gear (10). The bevel gear stage (11) has a bevel gear shaft (12) and a ring gear (13). The transmission housing (29) has a housing element (14). The drive pinion (9) forms a drive. The spur gear (10) and the bevel gear shaft (12) are permanently and rotationally fixed to one another. The ring gear (13) forms an output. The spur gear (10) and the bevel gear shaft are mounted in the housing element (14). The housing element (14) has a journal (17) on which the ring gear (13) is mounted. The pin (17) has a recess (23) through which the bevel gear shaft (12) can be guided into its mounting position.Furthermore, the invention relates to a gearbox housing (29) for a gearbox arrangement (2) and a working machine.
Owner:ZF FRIEDRICHSHAFEN AG

Large-torque sealed transmission single-wheel vertical driving wheel

The invention relates to a large-torque sealed transmission single-wheel vertical driving wheel which comprises a wheel assembly, a first transmission shaft, a second transmission shaft and a transmission motor. An output end gear of the first transmission shaft is connected with an input end gear of the wheel assembly for bevel gear transmission or staggered shaft bevel gear transmission; an input end gear of the first transmission shaft is connected with an output end gear of the second transmission shaft for straight tooth cylindrical gear transmission, helical tooth cylindrical gear transmission or herringbone tooth gear transmission; and an output end gear of the transmission motor is connected with an input end gear of the second transmission shaft. And through the multi-stage gear transmission design, the torque output capacity of the driving wheel is remarkably improved, and the requirement for heavy-load transportation is met. A sealed space is formed after the wheel disc base shell, the wheel disc middle disc and the wheel disc upper disc are assembled, dust, water and other impurities are effectively prevented from entering the driving wheel, the service life of a gear and a bearing is prolonged, and the reliability of a system is improved.
Owner:CHINA WHEEL POWER TECHNOLOGY (GUANGZHOU) CO LTD

Quasi-static spur gear wear value analysis method

The invention relates to a quasi-static straight gear wear numerical analysis method, and belongs to the technical field of mechanical engineering. The method comprises the following steps: calculating a dynamic wear coefficient by using a mixed lubrication model; the contact pressure and the sliding distance are calculated in an integral form, a straight gear quasi-static numerical wear model is established by using matlab software with the help of an Archard formula, and a wear value is calculated; the influence rule of the modulus, the torque and the tooth width on the abrasion loss is obtained, and meanwhile the significance of the influence of the three factors is analyzed through an orthogonal experiment method. Compared with the prior art, the method has the advantages that the problem that the calculation of the contact pressure is greatly influenced by the grid units is researched and solved, so that the obtained contact pressure value is more accurate, and the tooth surface wear is reduced according to the rule and significance analysis of the influence of various factors.
Owner:KUNMING UNIV OF SCI & TECH