17results about How to "Realize overload protection" patented technology

The invention relates to an overload yaw preventing method and system. The overload yaw preventing system comprises a first connecting part and a second connecting part which are arranged in a mutually rotating mode. A driving assembly is arranged between the first connecting part and the second connecting part; the driving assembly actively acts, so that the first connecting part and the second connecting part relatively rotate; the driving assembly comprises a lever arm; the lever arm is connected with a fixed fulcrum, a large arm and a small arm; the big arm adopts a driving rod piece; the small arm adopts a driven rod; the driven rod is hinged with a clamping seat piece; and when the root part of the driving rod piece is hinged to the first connecting part or the second connecting part, the clamping seat piece intermittently clamps the second connecting part or the first connecting part to act. The device is reasonable in design, compact in structure and convenient to use.

The utility model particularly relates to a soft ball conveying device which comprises a base body frame, an advancing ball channel conveying mechanism, an ascending ball channel conveying mechanism, a color sensor and a control system. The control system is in signal connection with the advancing fairway conveying mechanism, the ascending fairway conveying mechanism and the color sensor and is used for acquiring, analyzing and processing color information of the soft balls so as to control the advancing fairway conveying mechanism and the ascending fairway conveying mechanism to be opened and closed; the control system starts the forward fairway conveying mechanism and the rising fairway conveying mechanism to operate according to the recognition result of the color sensor, so that the soft balls in the target color are discharged through the rising fairway conveying mechanism; or, by starting the forward fairway conveying mechanism to operate, the soft balls with non-target colors are discharged through the forward fairway conveying mechanism.

A magnetic transmission automobile air conditioner electromagnetic clutch is structurally composed of a belt pulley, a driven disc, a compressor shaft, a compressor shell, a bearing and a coil. The internal combustion engine drives the belt pulley to rotate; when the air conditioner does not need to work, the coil is not electrified; no magnetic force exists between the belt pulley and the driven disc, and the compressor does not work. When the air conditioner needs to work, the coil is powered on; magnetic forces which attract each other are formed at air gaps among the pulley rim magnetic conductive teeth, the teeth of the driven disc outer magnetic conductive gear ring, the pulley spoke magnetic conductive teeth, the teeth of the driven disc inner magnetic conductive gear ring and the pulley hub magnetic conductive teeth, and the magnetic forces drive the driven disc and the pulley to rotate together, so that the compressor works.

The present invention discloses a manual liquid medicine valve, comprising: a mounting base plate, a valve seat, a valve seat cover, an upper cover, a screw nut, a screw, a hand wheel and a torque expander; a diaphragm is arranged on the sealing surface of the valve seat, the valve seat is mounted on the mounting base plate, the valve seat cover is mounted on the valve seat, the upper cover is mounted on the valve seat cover, the screw is arranged in the screw nut, the torque expander is mounted on the screw nut, the hand wheel is connected to the torque expander, and the hand wheel is connected to the screw sleeve; when the hand wheel is rotated, the screw nut is driven to rotate through the torque expander, the screw moves downward, and the diaphragm is driven to press downward, and when the sealing surface of the diaphragm and the valve seat is completely closed, and the torque reaches the maximum torque threshold of the torque expander, the torque expander expands. The present invention overcomes the problem that the sealing surface of the PTFE diaphragm is excessively compressed due to the excessive closing torque of the manual liquid medicine valve, thereby causing the sealing surface of the diaphragm to be damaged, unable to seal and leak, or the diaphragm size changes after excessive compression, the stroke increases, and the diaphragm is pulled and ruptured.

The invention relates to a wind generating set and a power generation system thereof.The power generation system of the wind generating set comprises a generator, a speed increasing box and a magnetic transmission mechanism, the generator comprises a power generation input shaft, and the speed increasing box comprises a speed increasing output shaft; the magnetic transmission mechanism comprises a driving magnetic assembly connected with the speed increasing output shaft and a driven magnetic assembly connected with the power generation input shaft, and the driving magnetic assembly and the driven magnetic assembly are in magnetic fit and used for transmission between the power generator and the speed increasing box. Compared with transmission between the speed-increasing gearbox and the generator through a coupler, transmission between the generator and the speed-increasing gearbox is achieved through magnetic force, the anti-overload capacity is higher, and when the running speed of the speed-increasing gearbox is suddenly increased, magnetic force balance can be broken and power transmission can be cut off between the driving magnetic force assembly and the driven magnetic force assembly which are in magnetic force transmission, and overload protection is achieved.

The utility model provides a direct current high breaking intelligent circuit breaker for an electric automobile, which comprises a shell, a static sheet part, a short circuit protection moving contact part and an electromagnetic valve part, a moving iron core in the electromagnetic valve part is connected with a push rod, the push rod is connected with the short circuit protection moving contact part, a control panel is arranged in the shell, and the control panel is connected with the electromagnetic valve part. The electromagnetic valve component is connected with the control panel, and the control panel is connected with a control center. The utility model relates to a new technology which combines a contactor structure, short-circuit tripping and direct-current arc steering and integrates a switching function and a protection function, provides load breaking and overload and short-circuit breaking capacities, is resettable and does not need to replace equipment.

This invention discloses an intelligent displacement-type straw stacking device with compaction function, belonging to the technical field of straw stacking devices. It includes a base, a pressing assembly, an adjusting assembly, a guide cylinder, an electric rotating drum, and a guiding assembly. During the edge expansion process, the movable side column drives the bottom adjusting component to move synchronously to both sides. Through the cooperation of the sliding column and the inclined groove, the drive roller and the detection roller achieve stable clamping of the row of straws. After the detection roller and the drive roller clamp the row of straws, under the drive of a second motor, the detection roller and the drive roller rotate synchronously through transmission components such as gears, force transmission rings, and arc-shaped piston rods, applying a stable downward traction force to the row of straws, pulling out the blockage material in the expansion channel and achieving deblocking. After deblocking is completed, the control system automatically resumes the operation of the electric rotating drum and reverses the drive of the edge expansion assembly and the deblocking and anti-breakage assembly to reset, achieving seamless connection between the deblocking process and normal feeding, avoiding prolonged equipment shutdown due to material blockage.

The dynamic impact energy measuring device is used for measuring impact energy generated by relative movement between a first component and a second component, and comprises a first connecting piece used for being connected with the first component; the second connecting piece is used for being connected with a second component, and the first connecting piece and the second connecting piece can generate impact movement relative to each other in the impact direction; the energy absorption device is arranged between the first connecting piece and the second connecting piece, can bear load due to relative movement of the first connecting piece and the second connecting piece in at least one part of stroke of relative movement of the first connecting piece and the second connecting piece, and is constructed to be capable of absorbing impact energy due to at least partial deformation of the load; and the sensing assembly is arranged to measure the borne load amount and the generated deformation amount of the energy absorption device respectively. The device can design the diameter / height and thickness of the energy absorption core body based on the bearing capacity of the machine body structure so as to realize overload protection of the machine body structure. The invention also relates to an aircraft flap assembly and a dynamic impact energy measurement method.

The utility model discloses a transmission assembly with a damping type clutch structure, which comprises a transmission shaft part, a rotary transmission part capable of rotating relative to the axial direction of the transmission shaft part is connected onto the transmission shaft part, and a clutch part positioned on one side of the rotary transmission part is further connected onto the transmission shaft part. The clutch part is connected to the transmission shaft part in a sliding mode in the axial direction and can rotate along with the transmission shaft part, so that the clutch part can be attached to or away from the rotary transmission part in the axial direction, and a pre-tightening force elastic element capable of providing pre-tightening force to push the clutch part to be attached to the rotary transmission part is further arranged between the transmission shaft part and the clutch part. A clutch structure is arranged between the rotary transmission part and the clutch part, when the torque of the rotary transmission part and the clutch part is smaller than a preset value, the rotary transmission part and the clutch part are in close transmission, and when the torque of the rotary transmission part and the clutch part is larger than the preset value, the clutch part is separated from the rotary transmission part. The transmission assembly with the damping type clutch structure is compact in structure and good in protection effect.

The utility model discloses a socket structure with an overload protection function, which comprises a device main body and an overload protection mechanism, and the overload protection mechanism is arranged at the upper end of the device main body and used for power-off protection. The overload protection mechanism comprises a rear machine cover, one end of the rear machine cover is provided with a machine box, an inner supporting piece is installed in the machine box, and one end of the inner supporting piece is provided with an induction piece. And the safety of the device main body is improved, and the effect of prolonging the service life of the device main body is achieved by installing a protection mechanism at one end of the device main body.

The present invention provides an electromechanical, hydraulic, and gas multi-field coupled rotary percussion drilling system, including a control system, a hydraulic feed subsystem, a high-speed variable plunger motor rotation subsystem, a low-speed cycloidal motor rotation subsystem, a pneumatic impact subsystem, and a comprehensive power integration subsystem. The hydraulic feed subsystem is used to control the feed and pull-out of the drill; the high-speed variable plunger motor rotation subsystem and the low-speed cycloidal motor rotation subsystem are respectively used to drive the rotation of the main shaft of the drilling rig at different speeds; the pneumatic impact subsystem is used to control the high-frequency impact of the pneumatic impact drill; the comprehensive power integration subsystem is used to integrate and transmit the comprehensive power of the hydraulic feed subsystem, the high-speed variable plunger motor rotation subsystem, the low-speed cycloidal motor rotation subsystem, and the pneumatic impact subsystem. The present invention can realize a large range of stepless speed regulation and rotation, multiple torque outputs, high-frequency impact, load-sensitive regulation, and intelligent drilling pressure regulation during the process of drilling and breaking rocks, effectively overcoming drill jamming and drilling deviation.

The utility model relates to the field of valve actuators, in particular to a rotary actuator which comprises a box body, an output motor, an output shaft, an output piece and an overload protection assembly, the output shaft and the output piece are sequentially arranged in the box body, the output piece is elastically connected with the output shaft through the overload protection assembly, the output piece and the output shaft are coaxially arranged, and an abutting groove is formed in the output shaft. The overload protection assembly comprises a mounting frame, an abutting block arranged on the mounting frame in a telescopic mode and a telescopic spring arranged on the mounting frame, the abutting block is arranged in the abutting groove in a sliding mode through the telescopic spring, and the abutting block abuts against the inner wall of the output piece. The abutting block can move towards the center shaft of the output shaft through the telescopic spring, and then the output piece is separated from the output shaft, so that when overload occurs, torque transmission between the rotary valve actuator and a valve is rapidly relieved, the output piece is not prone to continuously driving the valve to rotate due to inertia, and overload protection is better achieved.

This invention discloses a small-diameter motor-driven dual-mode intelligent honing tool integrated into a machining center, along with its operation method and application, belonging to the field of precision machining. The honing tool includes a tool body, a honing stone assembly, a motor-driven feed mechanism, a conductive slip ring, a protective cover, and a motor control system. The motor-driven feed mechanism is integrated within the tool body, driving the axial movement of the pusher rod through a reduction gearbox and a lead screw pair, and using the conical surface to drive the radial expansion and contraction of the honing stone. The motor control system employs dual-mode intelligent control: quantitative rough honing based on encoder position feedback, and constant-pressure fine honing based on a motor current-honing force model, thus achieving precise closed-loop control of the honing process. The conductive slip ring ensures power supply for rotation, and the protective cover provides anti-rotation and sealing. This honing tool can complete drilling, reaming, and honing composite machining in a single setup, solving the problems of low pressure control accuracy and slow response of traditional hydraulic tools, and is particularly suitable for ultra-high precision parts such as electro-hydraulic servo valve sleeves.

This invention relates to the technical field of force measurement platforms, and more particularly to a human posture data acquisition device and its assembly method, comprising a support platform and several detection pillars supported on the edge of the support platform; each detection pillar includes a platform clamp and a detection base, with a distance difference between them; the platform clamp and the detection base are connected by a decoupling structure to transfer stress, and when a vertical force is applied to the support platform, the decoupling structure absorbs additional interference stress and provides overload protection through its own flexible deformation; a connecting structure is provided between the platform clamp and the detection base to prevent the platform clamp from detaching from the detection base, and at least one end of the connecting structure forms a non-rigid connection with the platform clamp or the detection base; the detection base is used to capture stress from the support platform and passing through the decoupling structure, and the decoupling structure of this invention absorbs additional interference stress and provides overload protection through its own flexible deformation.

The utility model discloses a brake motor, which relates to the technical field of brake equipment and specifically comprises a friction plate, a bayonet is arranged on one side of the outer cambered surface of the friction plate, a fastening nut is fixedly mounted on the inner side wall of the bayonet, a through groove is arranged in the middle of the surface of one side of the friction plate, and the fastening nut is fixedly mounted in the through groove. A brake pad is fixedly installed on the surface of one side of the friction plate through a bayonet, a shaft sleeve is connected into a through groove in one side of the friction plate in a penetrating mode, teeth are arranged on the outer arc face of the shaft sleeve and connected with the brake pad in a meshed mode, and an assembly part is fixedly installed on the surface of one side of the brake pad through a bolt. The brake cam is additionally arranged on the basis of a traditional electromagnetic brake structure, the position of the brake cam is controlled through attraction of magnetic attraction force, and therefore after electromagnetism disappears, the brake cam rotates to the initial state on the boss and is connected with the shaft sleeve in a clamped mode, the brake piece is pushed to press an assembly part, and friction is increased; and the other side of the assembly part is clamped between the fixing pieces for connection and braking, so that overload protection is realized, and the safety performance is high.

The invention discloses an electronic automatic management banking business library, and relates to the technical field of banking business libraries, the electronic automatic management banking business library comprises a frame body, a cabinet door is installed on the frame body, supports are uniformly and fixedly connected in the frame body, supporting plates are uniformly arranged on the supports, and protection plates are fixedly connected to two sides of the supporting plates. When files are placed on the compact shelf, the gravity of the files can naturally act on the supporting rods, the supporting rods are rotationally connected to the bottom of the supporting plate, when heavy objects are placed on the supporting plate, the supporting rods can be driven to start to be pushed towards the middle of the supporting plate through the gravity effect, and at the moment, the force can be effectively absorbed through the buffering characteristics of the supporting rods and the damping springs; and meanwhile, through the arrangement of the compact shelf, not only is stable support provided for the whole compact shelf, but also a soft buffering mechanism is introduced in the file storage process.

An eddy current transmission stepless speed change type tidal current generator set belongs to the field of tidal current / ocean current power generation, and comprises a tidal current impeller, a main transmission shaft, a planetary gear train, an electromagnetic eddy current assembly and a permanent magnet generator, the tidal current impeller is used for converting captured ocean current kinetic energy into mechanical kinetic energy of the planetary gear train, and the tidal current impeller is fixedly connected with the main transmission shaft; the main transmission shaft is connected with the input side of the planetary gear train, the output side of the planetary gear train is connected with a copper disc rotor of the electromagnetic eddy current assembly, a permanent magnet disc rotor of the electromagnetic eddy current assembly is in transmission connection with the permanent magnet generator through the parallel shaft gear train, and the permanent magnet disc rotor and the copper disc rotor can freely and relatively rotate. The device is simple, compact, stepless and continuous in speed change and high in efficiency.