165results about How to "Realize commutation" patented technology

The invention provides a door lock handle reversing device. The device is characterized in that a limiting structure and a torsional spring positioning block are rotated, a torsional spring, a connecting block, a reversing strip, a door handle and other parts are innovatively arranged and interconnected, and the door lock handle can be reversed and positioned through the reversing strip, namely, the door handle can be freely rotated in 360 degrees when the reversing strip is not inserted, and thus the function of reversing the door handle is easily achieved; when the reversing strip is inserted, the door handle is positioned under the effect of an angle limiting block and a bulge b, and meanwhile, the handle is downwards pressed and upwards lifted. With the adoption of the integral structure design, the device has the advantages of being convenient to mount and reverse, small in space used, and easy and safe to be operated.

The invention discloses a deep blind hole inner diameter automatic measuring device and measuring method. The deep blind hole inner diameter automatic measuring device comprises a front measuring module, a middle stop module and a rear driving module. The front measuring module is connected with the rear driving module through the middle stop module. Firstly the front measuring module, the middlestop module and the rear driving module are placed in the deep blind hole to be measured from the inside to the outside in turn during measurement; secondly, the rear driving module pushes the front measuring module and the middle stop module to move in the deep blind hole, and the front measuring module completes the measurement of the inner diameter of the deep blind hole; and finally the middlestop module automatically stops the measuring device at the bottom end of the deep blind hole, and the rear driving module drives the front measuring module and the middle stop module to reversely move to the orifice. The non-contact front measuring module, the adaptive rear driving module and the automatic middle stop module, are used so that automatic detection and commutation of the inner diameter of the deep blind hole within a certain range can be realized and the measurement accuracy and efficiency of the inner diameter of the deep blind hole can be enhanced.

The present invention provides a right and left hand interchange mechanism for a rope-driven upper limb rehabilitation trainer. The right and left hand interchange mechanism includes a wrist reversingportion, a forearm compensating portion and an elbow flexing and extending portion, wherein the wrist reversing portion includes a supporting plate for supporting a wrist, a narrow connecting plate fixed to the bottom of the supporting plate, a Z-shaped connecting plate with one end fixed to the narrow connecting plate and adjacent to the supporting plate, and a Hall operating rod disposed on oneside of the Z-shaped connecting plate; the forearm compensating portion includes a short connecting plate connected to the other end of the Z-shaped connecting plate, a sliding block connected with the short connecting plate through a screw and a linear guideway guide groove where the sliding block is embedded and which is used for the movement of the sliding block; and the elbow flexing and extending portion includes a forearm connecting rod connected with the linear guideway guide groove, an elbow pull cable wheel connected with the forearm connecting rod through a pin, an elbow limiting fixed block fixed at the bottom of the forearm connecting rod through a pin, two reversing positioning pins disposed on the elbow limiting fixed block, a C-shaped joint connector for placing the elbow pull cable wheel and the end of the forearm connecting rod at the position of an opening, and a flexing and extending rotating shaft passing through through holes in a top plate and a base plate of theC-shaped joint connector, the elbow pull cable wheel and the end of the forearm connecting rod.

The invention discloses a series direct-current motor four-switch topological device and a control method thereof, and relates to the technical field of brushed direct-current motors. The series direct-current motor four-switch topological device comprises a full-bridge circuit, a center signal processing unit, a gate drive circuit and a flyback diode, wherein the full-bridge circuit comprises semiconductor switch elements. The full-bridge circuit which is composed of the semiconductor switch elements is utilized to control one of windings of the series direct-current motor, then the other winding is in series connection between the full-bridge circuit and bus directly, and the flyback diode is in parallel connection with the winding reversely. Since one of two power supply switches of the full-bridge circuit can be selected to control current direction of the windings connected to the full-bridge circuit, reversing of electromagnetic torque of the motor is realized.

The invention discloses a pneumatic and electric matched automatic loading and unloading device. The device consists of a control system, a worktable, a feeding mechanism and a loading and unloading mechanism; a motor transmits power to a conveying belt; and the taking of workpieces to be machined is realized through combined action of the motor and a feeding cylinder. The workpieces are pushed to a pneumatic slide table through a workpiece pushing cylinder; and the pneumatic slide table and a swing cylinder are matched to realize conveying and reversing of the workpieces. A finger-shaped air jaw realizes loading and unloading movement under effects of a transverse moving cylinder and a longitudinal telescopic cylinder. The finger-shaped air jaw and a needle-shaped cylinder are matched to realize clamping, placement and positioning of the workpieces; and the longitudinal telescopic cylinder and the transverse moving cylinder are matched to realize transverse and longitudinal movement of the loading and unloading mechanism. The control system adopts a PLC and an industrial controller to control the feeding mechanism and the loading and unloading mechanism, and realizes independent work of different mechanisms according to demands; and the pneumatic and electric matched automatic loading and unloading device realizes quick loading and unloading of a machine tool, and improves the production efficiency.

The invention provides a valve special for a photovoltaic power station solar panel cleaning system. The valve comprises a valve body, the valve body is provided with a transverse supporting arm, water outlet pipes with downward outlets are arranged at the two ends of the transverse supporting arm respectively, the water outlet pipes and the transverse supporting arm are integrally connected in a 90-degree mode, the middle of the transverse supporting arm is connected with a water inlet pipe, a reversing sphere is arranged in an inner cavity in the middle of the valve body, a protruding block is arranged on the reversing sphere, a reversing hole is formed in the reversing ball, the protruding block is arranged in a groove of a connecting cover, the connecting cover is connected with a reversing handle, and a rolling wheel is arranged on the reversing handle. The valve is used by being mounted in the photovoltaic power station solar panel cleaning system, and is long in service life, and therefore the maintenance quantity of the cleaning system is reduced.

The invention belongs to the technical field of medical treatment, and particularly discloses a power quick-mounting device, a power device and a surgical robot. The power quick-mounting device comprises a quick-mounting unit, wherein the quick-mounting unit comprises a mounting main shaft, a plugging sleeve and a ball, the mounting main shaft is provided with a containing cavity and a placing hole, the plugging sleeve can slide between a first position and a second position relative to the mounting main shaft, the ball is partially contained in the placing hole, and a ball groove is formed in the inner wall of the plugging sleeve; a base unit which is provided with an inserting cylinder part, wherein an accommodating groove is formed in the outer wall of the inserting cylinder part; when the plugging sleeve slides to the first position, the ball can retreat from a containing cavity and partially enter the ball grooves, and when the plugging sleeve slides to the second position from the first position, the groove walls of the ball groove can abut against the ball and enable the ball to partially extend into the accommodating grooves. According to the power quick-mounting device, the power device and the surgical robot, the convenience of cleaning and replacing the power unit can be improved.

The invention discloses a hydraulic system of a vibrating pile driver. The hydraulic system comprises a first oil cylinder, a first electromagnetic valve, a first vibration control valve, a second oil cylinder, a second electromagnetic valve, a second vibration control valve and a driving mechanism. The first vibration control valve is connected with the first oil cylinder, and the second vibration control valve is connected with the second oil cylinder; one end of the first electromagnetic valve and one end of the second electromagnetic valve are connected with the first oil cylinder, and the other end of the first electromagnetic valve and the other end of the second electromagnetic valve are connected with the second oil cylinder; and the first vibration control valve and the second vibration control valve are both connected with the driving mechanism. The electromagnetic valves and the vibration control valves are utilized for controlling the working sequence of the first oil cylinder and the second oil cylinder, and therefore the two oil cylinders constantly and alternatively vibrate for pile driving; on the basis of the pile driving principle, the impact fore is large, too large pile driving mass is not needed, the reactive force is small, and the reliability is high; and in addition, the full-hydraulic system is adopted to carry out driving and control, and the hydraulic system is simple in structure, large in driving force, convenient to control and use, and also low in manufacturing cost.

A hydraulic transmission method and device using boat diesel engine afterheat relates to the technical field of hydraulic transmission, in particular suitable for the utilization of waste gas afterheat for producing the boat diesel engine. Based on the principle of the hydraulic transmission, the waste gas afterheat of the boat diesel engine is used and is extracted from the bypass valve; the turbine is pushed to rotate; the hydraulic pump converts the turbine mechanical energy into the pressure energy of the hydraulic oil which respectively assists the driving dynamo and steering engine by a power distribution loop. The device includes a hydraulic system driving loop, a system oil compensating loop and a system pressure overload safety protection loop in order to fit various running working conditions of boat. The method and device can effectively use the waste gas afterheat of diesel engine in the navigation of the boat and can improve the working efficiency so as to reach the purpose of saving energy.

The invention discloses a driving device of a cableless elevator. An elevator system comprises a driving device, a lift car and a running track; the lift car moves upwards or downwards on the runningtrack through the driving device; the elevator system has no traction structure; the driving device is provided with a force application unit and a sub-driving system; the sub-driving system is connected with the force application unit; and the sub-driving system is pressed on the running track through the force application unit. The invention further discloses a multi-lift-car elevator system which comprises the driving device, at least one switching device and at least two running tracks; the switching device is provided with a switching track; the lift car is switched to different running tracks through the switching track; when the lift car is switched to different running tracks, the switching track is connected with the running tracks; and when the lift car runs on a non-switching running track, the switching track is not connected with the running track. According to the driving device of the cableless elevator and the multi-lift-car elevator system, the problem that one lift car can only run on one track is solved, the simultaneous load running of multiple lift cars is achieved, and the running efficiency of the elevator is greatly improved.

The invention discloses an oil distributing system of a gearbox and an oil distributing disc assembly. The oil distributing system of the gearbox comprises the gearbox and the oil distributing disc assembly. The oil distributing disc assembly comprises an oil distributing disc and a disc shaft. The oil distributing disc comprises a sleeve and a disc body. The disc shaft is mounted on the oil distributing disc in a press fitting mode. The oil distributing disc is mounted on a shell of the gearbox, and the sleeve is inserted into a control cavity of a clutch in the gearbox. A first oil way is formed in the disc body, a first oil hole is formed in the sleeve, a first oil groove is formed in a press fitting surface of the disc shaft, and both the first oil way and the first oil hole communicate with the first oil groove. The first oil way is provided with a first oil port used for oil feeding. According to the oil distributing system of the gearbox, the oil distributing disc assembly of the oil distributing system ingeniously utilizes interference fit between the oil distributing disc and the disc shaft, the first oil groove of the disc shaft is converted into an oil way, the structureof the oil distributing disc assembly is simplified greatly, and furthermore, machining of the oil distributing disc assembly can be made easier.

The invention provides a computer self-heat-dissipation shell, relates to the technical field of computers, and solves the problem that synchronous movement of other heat dissipation structures cannotbe realized while a fan rotates to dissipate heat through structural improvement. Through structural improvement, air flow narrow channels cannot be formed while swing heat dissipation is conducted,and reversing ventilation heat dissipation of key parts cannot be achieved. The computer self-heat-dissipation shell comprises a case main body, and the case main body is fixedly connected with a mainboard through bolts. The number of the rectangular plates B is two, the two rectangular plates B are symmetrically welded to the sliding block, and the height of the rectangular plate B on the rear side is larger than that of the rectangular plate B on the front side. A baffle of a rectangular structure is welded to the rectangular plate B on the rear side, when the sliding block reciprocates, anarrow gas channel is formed in the gap between the two rectangular plates B, the gap between the two rectangular plates B is aligned with the position of the processor, and therefore gas steering canbe achieved, and the heat dissipation effect of the processor is improved.

A track reversing device of a cable drum carriage comprises a base plate, a rotary plate, two track boards and a motor. A rotary shaft component is disposed in the middle of the base plate. The upper surface of the base plate is located at the periphery of the rotary shaft component and provided with a support part. The rotary plate is located above the base plate and parallel with the same. The middle of the rotary plate is pivoted to the rotary shaft component. The lower surface of the periphery of the rotary plate is movably matched with the top end of the support part. Two grooves respectively located on two sides of the rotary plate are formed on the upper surface of the rotary plate. The two track boards are respectively embedded into the two grooves. The outer side of each track board is fitted to the outer side wall of the corresponding groove. A limit groove is formed between the inner side of each track board and the inner side wall of the corresponding groove. The body part of the motor is fixed on the base. The rotary plate is synchronously connected with the rotary shaft of the motor. The track reversing device has the advantages that track directions of the cable drum carriage can be changed by turning on the motor, reversing of the cable drum carriage is achieved, and the track reversing device is simple to operate, small in space occupation, free of hoisting, and high in safety.

The invention discloses an electrodynamic-type seat direction-changing structure of a baby carriage. The structure comprises a supporting seat arranged on a vehicle frame of the baby carriage and an upper supporting frame. The upper supporting frame is rotatably connected with the supporting seat through a rotary shaft, the rotary shaft is driven by a motor, and an input end of the motor is connected with an output end of a control circuit. According to the electrodynamic-type seat direction-changing structure of the baby carriage, people can easily change directions of the seat through a direction-changing button. Compared with the prior art, the seat is needless to be disassembled, interaction or communication between people and a baby is convenient, the structure is simple and manufacture is easy.

The auxiliary welding tool comprises a bottom plate, a winding drum jacking clamp and a flange clamp, a fixing base is arranged at one end of the bottom plate, and a sliding base installed in a first guide groove in a sliding mode is arranged at the other end of the bottom plate; one side of the fixed seat and one side of the sliding seat are rotationally connected with supporting arms, the winding drum jacking clamp is arranged in the winding drum, and the winding drum jacking clamp is of a retractable structure; the flange clamp comprises a chuck body, a bevel gear wheel is arranged in the chuck body, a spiral groove is formed in one side of the bevel gear wheel, a plurality of clamping jaws are spirally connected to one side of the spiral groove, steps are arranged at the tail ends of the clamping jaws, and the clamping jaws are slidably connected with the chuck body. And one side of the bevel gear wheel is meshed with a plurality of bevel pinions. According to the winding drum jacking clamp, the inner wall of the winding drum is jacked, damage to a winding drum rope groove when the winding drum is supported is avoided, meanwhile, axial jumping generated when the winding drum is rotated in the welding process is avoided, the winding drum supporting stability is guaranteed, and then the welding quality of a flange and the winding drum is guaranteed.

The invention provides a two-position three-way reversing valve and a reversing method used for a small-flow liquid nitrogen low-temperature system. The reserving valve is a single electrical-controllever corrugated tube valve driven by an electromagnet, and comprises a valve body structure, a corrugated tube sealing structure, a lever hinge reinforcing structure and an electromagnet power generation structure, wherein the valve body structure comprises a valve seat, a double-conical-surface movable valve rod, an upper conical surface sealing base, a lower conical surface sealing base and a movable valve element connecting rod; the corrugated tube sealing structure comprises a corrugated tube and an elastic connector; and the lever hinge reinforcing structure comprises a first conductingpiston, a reinforcing connecting rod and a second conducting piston. The two-position three-way reversing valve has the advantages that the two-position three-way reversing valve is suitable for beingused under an ultra-low temperature environment, and is especially suitable for being used under a small-flow low-temperature environment. The cut-off valve principle is utilized for switching to thedouble-conical-surface movable valve rod for sealing and opening the upper conical surface sealing base and the lower conical surface sealing base so as to realize reversing of ultra-low-temperaturefluid. The two-position three-way reversing valve for the small-flow liquid nitrogen low-temperature system has the characteristics of a small size, a little cold loss, small leakage amount and quickresponse.

The invention relates to a dough blocking device of a rotating and folding dough mixer. The dough blocking device comprises two dough blocking frames and dough blocking rollers, wherein the dough blocking frames are of a 7-shaped structure and comprise upper parts, connecting parts and lower parts in an integrated structure; the upper parts are connected with the lower parts through the connectingparts; the connecting parts of the dough blocking frames are connected with a roller shaft of a driven outlet roller of a dough blank outlet mechanism; the two dough blocking frames are separately arranged at both ends of the roller shaft of the driven outlet roller of the dough blank outlet mechanism; U-shaped slots open leftwards and connecting slotted holes are formed in the left sides of theupper parts; a roller shaft of a driven conveying roller of a dough outlet conveying belt penetrates through the inside of the U-shaped slots; a plurality of dough blocking rollers are arranged alongthe length direction of the lower parts of the dough blocking frames; and the two dough blocking frames are connected by the dough blocking rollers. When an outlet bracket of the dough blank outlet mechanism of the rotating and folding dough mixer is higher than a dough outlet conveying belt, the dough blocking device has a dough blocking effect, and a dough blank moves downward along the dough blocking rollers of the dough blocking device and falls onto the folding and rotating mechanism below the dough blocking device.

The invention discloses a toothed rail vehicle and a horizontal-type driving device thereof. The horizontal-type driving device of the toothed rail vehicle comprises a toothed rail, a set of driving device and two sets of power transmission devices. Teeth are arranged on the two side walls of the toothed rail. Each set of power transmission devices drives a transversely-arranged transmission gear to rotate. The two sets of power transmission devices are driven by the set of driving device to move, and the two transmission gears corresponds to the teeth on the two side walls of the toothed rail to conduct engaged transmission, so that driving of the toothed rail vehicle is achieved. The deficiency that a present toothed rail vehicle cannot be applied to a large gradient is solved, and the requirement of large gradient transportation is met.