19339 results about "Drive shaft" patented technology

The invention discloses a cup lid stacking machine. The cup lid stacking machine comprises support feet, a base, a motor, a drive shaft, a limiting mechanism A, a cup taking mechanism, a rotary platform assembly A, a limiting mechanism B and a rotary platform assembly B. The support feet are arranged on four feet of the base. The motor is arranged on the base. One end of the drive shaft is connected to the motor. The limiting mechanism A and the limiting mechanism B are arranged on the base in parallel. The cup taking mechanism is arranged between the limiting mechanism A and the limiting mechanism B. The cup taking mechanism is connected to the drive shaft. The rotary platform assembly A and the rotary platform assembly B are arranged on the base. By the adoption of the cup lid stacking machine, the automatic multi-layer stacking of cup lids can be achieved, traditional manual stacking is replaced, and the machining efficiency of the cup lids is improved.

The invention provides a multifunctional cycle power generation system and method by a gravity lever. The system comprises a supporting rack and a balance weight arranged on the supporting rack and slidably matched with the supporting rack, wherein engines are arranged on one side or two sides of the balance weight; the input shaft of each engine is connected to a transmission shaft; two or more single-directional clutches are fixedly connected to the middle of the transmission shaft; the locking directions of the single-directional clutches are same, gears are fixed to the peripheries of thesingle-directional clutches, and a rack matched with each gear to drive the transmission shaft to rotate is arranged next to each single-directional clutch; at least one pair of racks is arranged on the upper part and the lower part, separately, the racks and the balance weight which reciprocates are in driving movement and the balance weight is arranged on the supporting rack to swing through a lifting mechanism in a reciprocating manner. As the balance weight which swings in the reciprocating manner pulls the racks to drive the transmission shaft to rotate in the single direction, multiple engines can be driven synchronously to generate electricity synchronously, and the power needed by a supporting rack lifting device is alleviated greatly by means of a swing mode like to a lever, so that the energy sources are saved and the power generation efficiency is improved greatly.

The present disclosure relates to a folding mechanism, including: a supporting beam; a rotating shaft assembly, including a plurality of rotating shafts extended along a length direction of the supporting beam, wherein the plurality of rotating shafts include a positioning shaft and transmission shafts distributed on both sides of the positioning shaft, and the positioning shaft is disposed on the supporting beam; a transmission assembly sequentially coupling individual rotating shafts in series along a distribution direction of the rotating shafts, wherein any rotating shaft is rotatable around an adjacent rotating shaft; and two bearing frames coupled to both sides of the transmission assembly, wherein the two bearing frames are rotatable around the positioning shaft between a first form, an unfolded form and a second form under transmission of the rotating shaft assembly and the transmission assembly.

An electric tool includes: a housing assembly including a housing body and an operation portion integrally connected with the housing body; a driving mechanism connected to the housing assembly and including a motor and a transmission shaft connected to and driven by the motor; and a control module arranged within the housing assembly and comprising a controller and a sensing element that is electrically connected to the controller. The motor is electrically connected to the controller. The sensing element is arranged at an inner side of the operation portion. The sensing element is to detect a user operation on the operation portion and output a signal to the controller, and the controller is to control the motor in response to the signal output by the sensing element.

The invention discloses a safety automobile seat and a massage machine core thereof, the safety automobile seat comprises a first part and a second part capable of moving relative to the first part, the first part is provided with a base, a driving shaft driven to rotate and a massage arm rotatably jointed on the driving shaft, and the second part is provided with a massage rod. The second part is connected with the massage arm through at least one force transmission component; the second part is provided with a movable seat and a dragging mechanism, the dragging mechanism comprises a dragging motor, a nut driven by the dragging motor and a lead screw matched with the nut, and the lead screw is assembled on the base through a locking mechanism; the locking mechanism is configured to be switchable between a locking state for locking the lead screw on the base and an unlocking state for releasing the lead screw to enable the lead screw to move relative to the base, and in the unlocking state, the lead screw can move relative to the base through the movement of the lead screw. The massage arm can rapidly collapse from the massage position to a safety position so as to prevent the massage arm from hurting the body of a user when the automobile is accidentally impacted.

The invention discloses a module belt conveying assembly and NC sorting equipment, and belongs to the field of logistics conveying. Comprising a conveying assembly, the conveying assembly comprises two sets of supporting frames, a plurality of sets of supporting beams are fixed to the supporting frames, and a PLC control system is fixed to the positions, close to the feeding end, of the supporting frames; the driving assembly comprises a driving shaft with a bearing arranged between the two groups of supporting frames; the transmission assemblies comprise a plurality of transmission parts which are fixedly connected to the driving shaft in a sleeving mode and arranged at intervals, jacking parts are arranged on the transmission parts, and power parts are arranged on the supporting beams; and the NC sorting modules are used for sorting the goods. According to the module belt conveying assembly and the NC sorting equipment, through cooperation of the transmission part jacking part, the supporting beam power part and the jacking assembly, overall horizontal jacking of a module belt is achieved, extra loads and eccentric wear of a conveying shaft are eliminated, shaft deformation is prevented, and bearing wear is relieved; stable material sorting is guaranteed, the clamping stagnation and slipping risks are reduced, and the stability and durability of equipment are improved.

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.

The invention relates to the technical field of reaction kettles, and discloses a reaction kettle device for synthesizing benzohydroxamic acid, the reaction kettle device comprises a reaction kettle body and a stirring structure arranged at the top of the reaction kettle body, a discharging pipe is arranged at the discharging end of the reaction kettle body, and supporting legs are arranged on the outer wall of the bottom of the reaction kettle body; three mounting plates distributed in an annular array are fixedly mounted on the inner wall of the reaction kettle body, a driving screw rod is rotationally mounted on the top surface of each mounting plate, the top end of each driving screw rod penetrates through the top surface of the reaction kettle body, and a guide frame is in threaded connection with the outer wall of each driving screw rod; when the feeding cylinder rotates, the transmission shaft is in intermittent contact with the protruding block, negative pressure adsorption and quantitative discharge of auxiliary materials are achieved through vertical sliding of the piston plate and cooperation of the one-way valve, it is guaranteed that raw materials can be accurately injected according to needs through the structural design, errors caused by manual control adding are avoided, the accuracy of the reaction proportion is guaranteed, and the production efficiency is improved. And the product quality stability can be improved.

The invention relates to the technical field of vehicle control, in particular to a torque control method and device of a vehicle transmission system and electronic equipment. The method includes: acquiring actually measured torsion angular velocity; calculating a transmission shaft torsion angular velocity, a transmission shaft torsion angle and a transmission shaft torsion rotating speed based on the actually measured torsion angular velocity; calculating the torque of the transmission shaft based on the pre-obtained equivalent damping coefficient and equivalent torsional rigidity as well as the calculated torsion angular velocity and torsion angle of the transmission shaft; calculating the required torque of the driven shaft based on the calculated torque of the transmission shaft and the pre-obtained load torque of the wheel end; anti-oscillation compensation torque is calculated according to the calculated torsion rotating speed of the transmission shaft and the pre-obtained rotational inertia of the driving end and the equivalent damping coefficient; and superposing the anti-oscillation compensation torque at the previous moment to the calculated required torque of the driven shaft to obtain the compensated required torque of the driven shaft, and outputting the compensated required torque of the driven shaft. The torque can be accurately controlled, and pause or movement is avoided.

The present application discloses an efficient stirring device 100, which includes a stirring tank body 101 forming an inner tank space to accommodate a mixture of powder materials and liquid materials; a stirring paddle103 and a stirring main shaft 104, at least a portion of which is disposed within the inner tank space and rotates around a central axis; a stirring motor 105; and the efficient stirring device further includes: a plurality of scraping members 101 rotatably disposed within the inner tank space to scrape off the mixture adhering to the inner wall of the stirring tank body when rotating on their own axes; a plurality of transmission shafts 107, at least a portion of which is disposed within the inner tank space; a power main shaft 108 for driving the transmission shafts to rotate on their own axes and to revolve around the central axis; and a scraping motor 109 for driving the scraping main shaft to rotate. Among them, the scraping members are connected to the transmission shafts in a non-rotating manner to move with the transmission shafts, and the transmission shafts are disposed parallel to the power main shaft. The advantage of the present application is that it provides an efficient stirring device that improves the wetting efficiency by disposing scraping members within the inner tank space that rotate on their own axes and revolve to scrape off the mixture adhering to the inner wall of the stirring tank body.

The invention discloses a transmission shaft straightening device, and relates to the technical field of straightening machines, the transmission shaft straightening device comprises a rack and a workbench connected to the rack, the rack is further provided with a pressing cylinder used for straightening a transmission shaft, and the lower portion of the pressing cylinder is connected with a pressing head; a bearing table used for bearing straightening pressure of the transmission shaft, a heating assembly and two positioning assemblies used for clamping the end of the transmission shaft are installed on the workbench, the heating assembly is arranged, and the transmission shaft is preheated before being straightened, so that the metal structure of the heated part of the transmission shaft is softened. In the straightening process, the connecting state of the two electromagnetic heating pipes is automatically closed according to the downward pressing degree of the transmission shaft, the position of a pressing head is avoided, due to the fact that the two electromagnetic heating pipes in the heating assembly heat the outer wall of the transmission shaft in advance, when the transmission shaft is pressed and straightened, the metal structure of the transmission shaft is prone to plastic deformation, and the straightening effect is better. Therefore, the straightening effect is obviously improved.

The invention discloses a grounding device for a driving shaft of a motor. The grounding device comprises a motor shell and the driving shaft, the rubber pad is arranged at the top of the motor shell; the grounding assembly is arranged at the top of the rubber pad and comprises a conductive part, a pressurizing part is arranged in the conductive part, a second dismounting part is arranged in the conductive part, when the driving shaft rotates, the conductive outer ring and the conductive inner ring are driven to rotate, and the conductive block is limited by the L-shaped conductive plate and the conductive rod and cannot rotate; a conductive block is in contact with a conductive inner ring to form closing of a conductive circuit, meanwhile, a first spring pulls a conductive piece leftwards, and then a conductive rod and an L-shaped conductive plate are pulled, so that the conductive block makes contact with the inner wall of the conductive inner ring all the time, and even if abrasion is generated between the conductive block and the conductive inner ring, the conductive circuit is closed. And the conductive block can still move in a first spring pulling mode, and it is guaranteed that the conductive block makes contact with the inner wall of the conductive inner ring all the time.

The invention provides a tool applied to the field of petroleum drilling, and particularly relates to an electrically-controlled reducing cutter, which has the technical scheme that the extension and retraction of the cutter are accurately controlled by a control base driving motor and an electromagnet, wherein the control base driving motor comprises an MCU (Microprogrammed Control Unit) and a wireless communication module; the control base can receive a ground instruction and transmit an underground working state signal back in real time; meanwhile, the ratchet mechanism is matched with the electromagnet to achieve extending and retracting of the cutter position, and the pawl is always in close contact with the ratchet wheel under the action of the spring. And the lower shell is in threaded connection with the guide shoe. The cutting knife is driven to rotate through the transmission shaft, the cutting knife is controlled to stretch out and retract through the intelligent electric control system, continuous cutting of casing pipes with different pipe diameters can be achieved, the tripping frequency is reduced, and the casing pipe cutting efficiency in the well abandoning operation process is greatly improved.

The invention relates to the field of co-extrusion production control, and particularly discloses an efficient film bag feeding control system, which is applied to a multi-raw-material synchronous conveying device of a co-extrusion process, and comprises a full-link data acquisition module, a full-link data processing module and a full-link data processing module, the raw material characteristic parameters comprise a melting point T, a stacking density rho and a magnetic sensitive particle loading amount M; the instantaneous load pressure P of each raw material conveying channel, the temperature Tm of a co-extrusion die head melting area, the real-time thickness H of a co-extrusion film layer, stock bin liquid level data and motor rotating speed data are collected and integrated to obtain a full-link original data set; the single-drive linkage conveying mechanism comprises a main servo motor, a plurality of sets of electromagnetic clutches and a plurality of sets of spiral conveying assemblies, and the main servo motor drives a transmission shaft through a synchronous belt. According to the technical scheme, for the co-extrusion process, the multi-raw-material synchronous conveying precision can be matched, and the problems that parameter adjustment lags behind, adaptability is poor and a downstream process feedback closed loop is lacked are solved.

The invention relates to the technical field of vehicle transmission power generation, in particular to a vehicle-mounted engine power takeoff driven parking power generation device which comprises a power takeoff and a power generator, a transmission shaft component is arranged between the power takeoff and the power generator, and the power takeoff drives the power generator to work and generate power through the transmission shaft component; the transmission shaft component comprises a first split shaft and a second split shaft which are coaxially arranged, an axial lock sleeve is fixedly arranged on the first split shaft, and the axial lock sleeve axially limits the second split shaft; according to the parking power generation device driven by the power takeoff of the vehicle-mounted engine, a vehicle can have higher safety redundancy, and when the power takeoff breaks down and cannot be connected with power or disconnected from the power, the working condition can be automatically recognized, and power takeoff is disconnected or power takeoff is connected in an emergency.

The invention provides an obstacle crossing mechanism, a trigger assembly, a clutch assembly, a walking module and cleaning equipment. The obstacle crossing mechanism comprises a mounting shell, a trigger assembly, a clutch assembly and an obstacle crossing piece. The trigger assembly is elastically hinged to the installation shell and comprises a trigger piece and a joint control piece, the trigger piece extends out of the lower side of the installation shell, and the joint control piece is fixedly connected to the trigger piece. The clutch assembly comprises a transmission shaft, a driving part and a clutch part, the transmission shaft is rotationally connected to the mounting shell, and the driving part is rotationally connected to the transmission shaft. The clutch piece is fixedly connected with the transmission shaft in the circumferential direction of the transmission shaft and movably connected with the transmission shaft in the circumferential direction of the transmission shaft. The obstacle crossing piece is fixedly connected to the transmission shaft. When an obstacle pushes the trigger piece, the trigger piece drives the joint control piece to rotate forwards, so that the joint control piece pushes the clutch piece to be in transmission connection with the driving piece. Therefore, the cost is reduced, and the stable obstacle crossing effect is guaranteed.

The invention relates to the technical field of tea leaf fermentation, in particular to a tea leaf fermentation device and method. The central supporting cylinder is coaxially arranged in the fermentation tank; the fan-shaped units are used for bearing to-be-fermented tea leaves; a plurality of groups of fan-shaped units are uniformly distributed in the circumferential direction of the central supporting cylinder and are encircled to form a tray assembly; the driving assembly comprises a driving main shaft arranged in the center supporting cylinder in a penetrating mode, a driving bevel gear fixedly arranged on the driving main shaft, and a driven shaft with one end connected with the fan-shaped units and the other end extending into the center supporting cylinder. By arranging the fan-shaped units which are uniformly distributed in the circumferential direction of the central supporting cylinder, the fan-shaped units are matched with the driving assembly to realize self-axis autorotation of the fan-shaped units, so that tea leaves are turned over in the autorotation process, efficient replacement of the tea leaves on the surface layer and the inner layer as well as the upper layer and the lower layer is realized, the fermentation difference is fundamentally eliminated, and the uniformity of the tea leaf quality is improved.

The invention relates to the technical field of photovoltaic panel welding, in particular to a workpiece feeding device of a bus bar welding machine, which comprises two fixing frames, feeding devices, a supporting device and a pushing device, the uniformly distributed feeding devices are mounted at the top of the fixing frames, the supporting device is arranged between the two fixing frames, and the pushing device is mounted on the top of the fixing frames. The device comprises a fixed frame, a driving motor, a driving shaft, a mounting frame, a fixed plate, a driving belt pulley, a driven belt pulley, a belt main body, a fixed shell, a supporting shell, a supporting wheel, a limiting plate, a threaded rod, a nut, a limiting rod, a rubber ring, a pushing spring and a dismounting main body, the driving belt wheel, the belt main body and the driven belt wheel can be driven to rotate through the driving motor and the driving shaft, the belt main body is attached to the supporting wheel so as to support the belt main body, the belt main body can be attached to the photovoltaic module all the time, and stable feeding of the photovoltaic module is guaranteed.

An electrically driven axle assembly is disclosed. In various embodiments, the electrically driven axle assembly includes a main housing; a differential plate configured for mounting within the main housing; a differential assembly, the differential assembly disposed adjacent the differential plate and having a bearing configured for mounting within a plate orifice that extends within the differential plate; a first drive shaft having a first inboard end connected to the differential assembly and a first outboard end configured to receive a first wheel; a first electric machine configured to drive the differential assembly; and a first gear assembly configured to operably couple the first electric machine to the differential assembly.

The application provides an electric derailleur, which comprises a fixed base, a driving device, a movable element, a chain guide and a connecting rod. The movable element is configured to be movable relative to the fixed base. The chain guide is rotatably connected to the movable element. The two ends of the connecting rod are pivotally connected to the movable element and the fixed base respectively. The driving device is arranged on the connecting rod. The driving device comprises a transmission shaft, which is configured to drive the movable element and the connecting rod to move relative to the fixed base. The transmission shaft is pivotally connected to the connecting rod and the movable element. The driving device further comprises a driving element, which is driven to rotate by the transmission shaft. The driving element is configured to drive the movable element and the connecting rod to move by applying force to the movable element. The electric derailleur provided by the application can improve the power transmission performance.

The invention discloses a combined iron core type three-phase reactor and a winding device thereof, and belongs to the technical field of reactor processing, the combined iron core type three-phase reactor comprises a winding assembly, one side of the winding assembly is sequentially provided with a height limiting assembly, a core loading assembly and a switching assembly, and the same sides of the winding assembly, the height limiting assembly, the core loading assembly and the switching assembly are jointly provided with a pay-off assembly; the winding assembly comprises a first sliding table, a first mounting plate is mounted at the sliding end of the first sliding table, a winding motor is mounted on the side, close to the height limiting assembly, of the upper end of the first mounting plate, a positioning circular plate is mounted at the end of a driving shaft of the winding motor, and a plurality of winding positioning rods used for being matched with different core sections are arranged on the positioning circular plate. According to the bobbin assembly device, the switching assembly is used for installing the end of an enameled wire on the winding assembly before a new coil square barrel is wound, automatic winding and installation of bobbin components are achieved, bobbin assembly can be conducted on similar special-shaped core bodies, and the overall working efficiency is improved.

The invention relates to the field of automobile alternating-current generators, and discloses a high-power alternating-current generator which comprises a machine shell, a rear end cover arranged behind the machine shell and a built-in machine shaft. A heat dissipation hole is formed in the rear end cover, a rotating block with a first fan blade is arranged in the hole, and the rotating block is rotationally installed on a supporting frame fixed to the rear end cover; a connecting groove is formed in the transmission shaft, the main shaft is inserted into the groove and is in transmission connection with the groove, and two ends of memory alloy in the groove are fixedly connected with the main shaft and the transmission shaft; the rotating block and the transmission shaft are in clutch transmission through the second butt joint assembly. A sliding sleeve with a second fan blade is arranged between the first fan blade and the second fan blade, is provided with a through hole and is in clutch transmission with the transmission shaft through a first butt-joint assembly; the sliding sleeve is provided with a groove, the rotating block is rotatably provided with a connecting rotating ring, the connecting rotating ring is fixedly connected with a supporting rod, and the supporting rod is inserted into the inserting groove. A mechanism for driving the transmission shaft to move is arranged between the transmission shaft and the sliding sleeve. After the temperature in the alternating-current generator rises, the transmission shaft drives the rotating block and the first fan blade through the second butt joint assembly, the two fan blades are stacked for heat dissipation, and the high-temperature requirement is met.

The invention discloses a movable power generation type multi-section hinge vacuum cable-free mooring device which comprises a movable module, a base, a mechanical arm set, a vacuum adsorption assembly, a hydraulic power generation device and a sliding power generation device. An infrared sensing device is arranged on the base; the vacuum adsorption assembly comprises a vacuum chuck and a vacuum pump, the vacuum pump comprises a motor, a pump shell and a sealing cover, and two rotating pieces with opposite magnetism are embedded in the middle of a driving shaft of the motor; the sliding power generation device comprises a shell, a sliding block, a transmission shaft, a spring and a chain. The sliding block slides in the shell, and a spring is arranged between the sliding block and the shell; the top of the slide block is provided with a first toothed belt and the bottom is provided with a second toothed belt; a first ratchet, a first gear, a second ratchet, a second gear and a generator are arranged on the transmission shaft; a first stop assembly clamped into the first ratchet wheel is arranged on one side of the first gear, and a second stop assembly clamped into the second ratchet wheel is arranged on one side of the second gear. According to the invention, traditional mooring with cables is replaced by vacuum chuck adsorption, so that the collision risk is reduced and the cable breakage is avoided.

The invention discloses a contact network wire straightness monitoring device, belongs to the technical field of straightness monitoring, and provides the following scheme that the contact network wire straightness monitoring device comprises a straightness monitoring mechanism, an auxiliary mechanism is arranged on the straightness monitoring mechanism, the straightness monitoring mechanism comprises a supporting plate, and monitoring equipment is arranged on the supporting plate; according to the invention, translation detection is carried out on the wire through the straightness monitoring mechanism, and during conventional detection, the lower pulley drives the shaft disc to drive the piston assembly to move, so that the rolling ball can slide in the rail groove, rotation of the rotating rail is realized, the detection assembly can carry out comprehensive detection around the circumferential direction of the wire, and the detection efficiency is improved in the detection process. On one hand, the position detection accuracy is improved through multi-dimensional detection data fusion, on the other hand, a conventional detection result is rechecked according to an omnibearing detection result and image data, when a flatness defect is recognized, a maintainer can visually confirm the shape and position of the defect through a corresponding image, and the problem of misjudgment or missed judgment is avoided.

The utility model relates to the field of agricultural machinery, in particular to a residual film picking and recycling straw beating machine, which comprises a main frame, a traction frame and traveling wheels, and a straw beating device, a residual film picking roller, a packing device and a transmission device are arranged on the main frame. The plastic film residue picking roller is characterized by structurally comprising a track disc device, a roller body, a center transmission rotating shaft, a shaft disc, a roller side plate, a film picking elastic tooth set, a film picking crank and a crank roller. The machine is reasonable in structure, economical and practical, and can realize the combined operation of picking, recycling and packaging the residual films and smashing and returning the straws to the field; in the picking process, the residual film picking roller can be utilized, the burden is small, the overall flexibility of the picking roller can be effectively improved, and the residual film picking operation efficiency is greatly improved; the special suspension traction frame is utilized to solve the actual problem that an included angle formed between power input and a transmission shaft is too small, and backward transmission of the locomotive is not facilitated, and flexible connection steering and transmission between the traction locomotive and the operation agricultural machine can be achieved.

The invention relates to the technical field of food kelp processing, and provides efficient air-drying equipment and method for kelp production, the efficient air-drying equipment comprises a hot air circulation bin, a circulation moving mechanism, a hanging module, an unhooking module and an air-drying frame, the circulation moving mechanism comprises a driving part, a transmission shaft, a gear and a transmission belt, and the gear is fixedly arranged on the surface of the transmission shaft; the driving part is used for controlling the transmission shaft to rotate, the inner side of the transmission belt is in transmission connection with the gear, the hanging module comprises a hook, inclined faces and a movable pin, the movable pin is fixedly connected to a hook body of the hook, the inclined faces inclining towards the component are arranged on the two sides of a hook groove of the hook, and the hook is used for hanging rope rings for binding kelp. The unhooking module comprises a limiting frame and a telescopic air cylinder, the telescopic air cylinder is arranged between the air drying frame and the limiting frame, and a hook body of the hook can make contact with the limiting frame, so that smooth unhooking is guaranteed, and the function of automatically collecting the dried kelp is achieved.

The utility model discloses a stainless steel composite board surface polishing device which comprises an installation frame, the installation frame is horizontally and rotatably connected with a driving shaft, and the installation frame is further fixedly connected with a motor in transmission connection with the driving shaft. The multiple driving wheels are distributed in the axial direction of the driving shaft at equal intervals, all the driving wheels are connected with the driving shaft through connecting bearings, and clutch mechanisms are arranged between all the driving wheels and the driving shaft; the driven wheel is connected with the mounting frame through a lifting mechanism, and an abrasive belt is arranged between the driving wheel and the driven wheel; and the tensioning wheel is arranged on the inner side of the abrasive belt and is in rolling connection with the abrasive belt, and the tensioning wheel is connected with the mounting frame through an elastic piece. The polishing device is provided with a plurality of abrasive belts of different models, and different abrasive belts can be switched to be used through the lifting mechanism and the clutch mechanism, so that the time for replacing the abrasive belts is saved, and the machining efficiency of the device is improved; the multiple abrasive belts are used at the same time, the grinding range of the grinding device can be enlarged, and the grinding efficiency is improved.

The invention relates to a bending-torsion coupling transmission shaft fatigue test device and method, and relates to the technical field of test equipment. Comprising a test bench, a bending loading device arranged at one end of the test bench, a torque loading device arranged at the other end of the test bench, and a test piece bearing device arranged between the bending loading device and the torque loading device, the test piece bearing device comprises a guide rail which is arranged on the test bed and extends from the bending loading device to the torque loading device, a positioning seat which is in sliding connection with the guide rail, and a bearing plate which is arranged on the positioning seat and can be lifted, so that a simulation test of a coupling effect can be carried out on bending and torsion of a transmission shaft, and the test piece bearing device can also be used for bearing the transmission shaft. And the bending test can be carried out under the condition that the transmission shaft is supported at a specific position.

The invention provides an internal flow field balancing device for a magnetic transmission high-temperature and high-pressure closed container. Comprising a pulley, a transmission mechanism, a clutch, a turbulent flow mechanism, a frequency modulation motor and a magnetic transmission mechanism, a rotating cage is arranged on the pulley and is driven to rotate through a rotating mechanism; a tray is hung on the rotating cage, and an accommodating object is accommodated on the tray; the transmission mechanism is arranged at the closed end of the tank body; one end of the clutch is connected with the transmission mechanism; the turbulence mechanism is provided with a transmission shaft, blades and a driving gear are arranged at the extension end of the transmission shaft, the blades are used for adjusting airflow distribution in the tank body, and the driving gear is connected with the input end of the transmission mechanism and used for driving the transmission mechanism; the magnetic transmission mechanism is a non-contact coupling for transmitting torque through magnetic field force, is arranged in the middle of the outer side of the sealing head at the closed end of the tank body and transmits torque to the closed space of the tank body; the frequency modulation motor is connected with the magnetic transmission mechanism and used for driving the transmission shaft to rotate. Three flow field balancing modes are provided for use.

The application provides a permanent magnet eddy current governor for constant torque load heavy load starting and a control method thereof, and belongs to the technical field of permanent magnet eddy current transmission speed regulation. The permanent magnet eddy current governor comprises a conductor cylinder, a magnet disc, a transmission shaft and a magnet disc axial traction mechanism. The conductor cylinder is connected with a motor input shaft, the inner wall of the conductor cylinder is fixed with two groups of annular conductor sleeves, the annular conductor sleeves are divided into starting zones and rated working zones in the axial direction, and the two groups of starting zones are separated by an idle zone. The transmission shaft passes through the rear end of the conductor cylinder, the front end is located in the conductor cylinder, and the rear end is connected with a load output shaft. The magnet disc is installed on the shaft rod of the transmission shaft located in the conductor cylinder, and the outer ring surface of the magnet disc is uniformly distributed with permanent magnets. The magnet disc axial traction mechanism is used for driving two magnet discs to synchronously approach or move away from the center of the idle zone. The application can be used for motor idle starting, heavy load controllable starting, load balancing, speed regulation operation and unloading overload protection of constant torque load.