9 results about "Detent force" patented technology

The utility model discloses a kind of rotary welding mechanisms, including movable support seat, fixed support seat and rotary drive assembly, movable support seat and fixed support seat are oppositely spaced and interval region constitutes rotary welding cavity, movable support seat is rotatably provided with first end portion clamping fixture, fixed support seat is rotatably provided with second end portion clamping fixture, rotary drive assembly includes rotary power piece, first synchronous wheel, second synchronous wheel and synchronous belt, rotary power piece is connected with the transmission of first synchronous wheel, second synchronous wheel is connected with the transmission of second end portion clamping fixture, synchronous belt is sleeved on first synchronous wheel and second synchronous wheel.This application is by rotary power piece, first synchronous wheel, second synchronous wheel and the rotary drive assembly of synchronous belt composition, avoid electrostatic invasion power piece internal precision electrical components, prevent power piece insulation layer breakdown, winding short circuit and other faults, reduce power piece damage risk.

The invention relates to the technical field of elderly nursing equipment, and discloses an autonomous bathing nursing device suitable for the elderly with physical inconvenience, which comprises a fixed shell, a fixed seat is slidably connected in the fixed shell, a connecting block is slidably connected in the fixed seat, and a driving cavity and a square notch are formed in the connecting block. A trigger end of a driving assembly is rotationally connected into the driving cavity; the driving assembly comprises a worm, the worm is meshed with a worm gear, the worm gear is fixedly connected to the rotating shaft, cams are fixedly connected to the positions, close to the two ends, of the rotating shaft, and the cams abut against the trigger ends of the wiping assemblies. According to the invention, the horizontal torque of the motor is efficiently converted into rotation power through the worm-worm gear, the self-locking characteristic of the worm-worm gear can effectively prevent accidental inversion in the power transmission process, and the operation stability is ensured; and the cam and the V-shaped connecting rod are matched to enable the wiping assembly to do arc-shaped wiping action, so that stiff friction to the skin of the old people is reduced, and discomfort is reduced.

According to the supporting mechanism of the electric outboard motor, the electric outboard motor comprises an installation frame used for being connected with a ship body and a power frame used for installing a propeller, the power frame is installed on the installation frame in a swinging mode, the use state of the propeller is changed by driving the power frame to swing, and a push rod is connected between the power frame and the installation frame. The anti-pinch supporting mechanism comprises a supporting plate, the supporting plate is rotatably installed on the power frame or the installation frame, at least one supporting plane is arranged on the installation frame or the power frame, when the power frame is supported through the push rod, the supporting plate is arranged towards the supporting plane, and the supporting plate and the supporting plane are matched to support the power frame supported through the push rod; when the push rod fails, the supporting plate and the supporting plane abut against each other to prevent the power frame and the mounting frame from further relatively swinging, so that the power frame or a propeller on the power frame is prevented from colliding with a ship body, and the power frame and the mounting frame can be prevented from further relatively swinging to cause injury to operators.

The invention discloses a hub motor integrated with a planetary gear speed change mechanism and a hub system, and relates to the technical field of electric power-assisted bicycle driving. The motor comprises a rotor. Magnetic steel is installed on the inner side wall of the rotor at equal intervals in the circumferential direction. A sun wheel is coaxially and fixedly installed at the center position of the rotor, a plurality of planet wheels are connected to the outer ring of the sun wheel in a meshing mode at equal intervals in the circumferential direction, a gear ring is connected to the outer sides of the planet wheels in a meshing mode, a one-way clutch is fixedly installed on one side of the gear ring, and the planet wheels are installed on the one-way clutch through a wheel shaft. By means of the sun gear, the planet gear, the rotor and other structures, the one-way clutch can bear large torque, reverse transmission of power can be prevented, meanwhile, continuous output of the torque is ensured, the problem of power output interruption is avoided, and the slipping phenomenon can also be avoided.

The invention provides a transplanter, which relates to a structure for rotationally driving a planting rotating body by using an electric motor, and can inhibit a large force from suddenly acting on a power transmission mechanism of a seedling planting device when the rotation of the planting rotating body is stopped, and can prevent damage and the like of components of the power transmission mechanism. The control part performs the following control: stopping control for stopping the rotation of the planting rotating body; the deceleration rate of the rotation speed of the electric motor is varied in accordance with the magnitude of a target actual difference [Delta] [Theta] of a rotation phase, which is the difference between the phase detected by the phase detection unit and a predetermined target phase set as the stop position of the planting rotating body with respect to the phase.

The utility model provides a lock, including the casing, be equipped with the drive seat, the stirring seat and the power unit in the casing, the clutch pin is movably equipped in the drive seat, the power unit is used for driving the clutch pin, to make the drive seat and the stirring seat joint or separate, the casing and the clutch pin between then have the stop gear for preventing the clutch pin synchronous separation stirring seat after power unit reset, the utility model discloses the purpose is to provide a kind of in not anti-lock door case, can make intelligent lock always keep the lock of normal open state, to solve the technical problem of inconvenient use of existing intelligent lock under specific scene.

The application discloses a Stirling cryocooler, which comprises a cylinder assembly, a power piston assembly and a linear motor assembly, the power piston assembly comprises a power piston and a power plate spring, the cylinder assembly comprises a power cylinder, and the linear motor assembly is configured to drive the power piston to make linear reciprocating motion in the power cylinder; wherein, a deviation prevention structure and a pneumatic suspension structure are arranged on the power piston and the power cylinder, the pneumatic suspension structure comprises a gas floating hole arranged on the power piston; the deviation prevention structure comprises a cylinder deviation prevention hole arranged on the power cylinder and an annular deviation prevention groove, a power piston deviation prevention hole and an axial channel arranged on the power piston. The cryocooler can effectively prevent the power piston from generating deviation and current surge in operation and improve the reliability and service life of the vibration reduction structure by improving the internal structure, in particular the deviation prevention structure and the power absorber structure.

The utility model discloses a transmission structure of a tray threading device, which relates to the field of tray threading devices and comprises a front side plate and a rear side plate, the front side plate and the rear side plate form a shell, two groups of driving components are mounted on one side of the front side plate, a transmission shaft is arranged at the output ends of the driving components, a chain wheel is sleeved on the outer wall of the transmission shaft, and the chain wheel is sleeved on the outer wall of the transmission shaft. Sliding grooves are formed in the inner walls of the interiors of the front side plate and the rear side plate correspondingly, and upper guide chains and lower guide chains are arranged on the inner walls of the sliding grooves. The running stability of the threading device is improved through transmission of the two sets of chain wheels, command programming can be executed on the motor through the control unit, the extension length of the upper guide chain or the lower guide chain can be dynamically and respectively adjusted, the threading requirements of trays of different specifications are met, and braking of the chains is stopped through the motor; and the connecting pieces are arranged in an I shape, and small-range limiting rotation between the two sections of connecting pieces can be achieved through mutual cooperation of limiting blocks and limiting grooves.

The invention discloses a power head rotation control system, a control method thereof and a drilling machine. The system comprises a pump and a main valve which are used for providing pressure oil for the system; the first pressure valve is arranged at the outlet end of the pump and used for limiting system oil pressure when oil is supplied to the power head motor or supplemented to the power head motor; and the control valve group is arranged between an oil outlet A1 and an oil return port B1 of the main valve and is used for conducting an A port oil way and a B port oil way of the power head motor when the system pressure exceeds a preset high threshold value so as to control the system pressure or realize system energy release. The torque release of the power head can be realized after the drilling machine top driving power head rotates clockwise, particularly when the power head stops suddenly or shackles after fast clockwise rotation, a power head motor is prevented from being damaged due to air suction, meanwhile, the system pressure can be buffered when the power head suddenly operates or the instantaneous pressure of a rotating system is too high, and the reliability of the drilling machine top driving power head is improved. And the working safety of the power head is ensured.