30results about How to "Achieve torque" patented technology

The invention relates to a permanent-magnet slip transmission mechanism with a slip transmission function. The permanent-magnet slip transmission mechanism structurally comprises a grooved drum provided with two magnetic disks and a groove, a base disk connected with the two magnetic disks through a spring, two pairs of radial-flux magnets, an operating lever and two levers; a torque can be reliably and stably transferred during slip transmission; and the value of the transferred torque can be changed in a stepless manner. The permanent-magnet slip transmission mechanism comprises the base disk 6, the grooved drum 13, the magnetic disk 14, the magnetic disk 10, the magnetic disk 2, the magnetic disk 9, the levers 4, the operating lever 17, and the like, and is suitable for the fields of vehicles, wind power generation systems, air vehicles, machine tools, general machinery, industrial and mineral machinery, engineering machinery, and the like.

The present invention relates to a vibration threading on-line fault diagnosis method and its equipment, including vibration threading machine unit, drive and control unit of stepper motor and torque measuring unit, a torque sensor and a threading torque analysis and storage system are series-connected between its main sahft input end and threading grip holder, and said torque sensor is fixedly connected with main shaft of threading machine by means of elastic holding mechanism formed from elastic holder base cover, locking cover and locking screw. Said invention adopts the stepper motor as vibration source and threaidng force source, utilzies torque sensor to receive moving force and vibration source signal transferred by main shaft of machine tool of machine unit, and unilizes the signal amplification.

The invention discloses a dynamic load sensing device for a three-point-suspension space of a tractor and a working method of the dynamic load sensing device. The dynamic load sensing device comprisesa cross beam, two longitudinal beams and three-component force sensors, wherein the cross beam and the two longitudinal beams are connected to form a n-shaped framework, the three-component force sensors are arranged in the middle of the cross beam and the bottoms of the two longitudinal beams, linkage components are respectively arranged on the front and rear sides of the three-component force sensors, the front-side linkage components are used for being connected with the tractor, and the rear-side linkage components are used for being connected with an agricultural implement; the three-component force sensors can be used for measuring the sizes of stresses in the three rectangular coordinate axes X, Y and Z and are arrayed to form a measurement array; and a first angle sensor and a second angle sensor are respectively used for measuring the pitch angles, transverse roll angles and azimuth angles of the sensing device and the tractor and converting measurement results from a coordinate system of the sensing device to a coordinate system of the tractor. According to the sensing device, the component forces of three suspension points in three directions can be simultaneously tested, so that the test of the traction force, lifting force, transverse force and moment of the agricultural implement can be realized.

The present invention relates to a method for actuating an electric three-phase current machine, in particular a synchronous machine (14), which is supplied with current by means of an inverter, the inverter having a plurality of circuit breakers that are provided to supply the electric machine with electricity in multiphase manner, it being possible to actuate the inverter in different actuation modes (I, II, III, IV, V), the actuation modes (I, II, III, IV, V) being formed by space vector modulation (I), overmodulation (II, III, IV) or block commutation (V), and the corresponding actuation mode (I-V) being selected according to a rotational speed (n) or an electric frequency (FEL) of the three-phase current machine and according to a power or torque requirement.

The invention discloses a seal-ring-bearing three-eccentric seal butterfly valve, relating to the field of valves. The seal-ring-bearing three-eccentric seal butterfly valve comprises a valve body, an operating mechanism, a disk plate assembly and a valve stem, wherein the operating mechanism is positioned outside the valve body; one end of the valve stem is positioned outside the valve body and connected with the operating mechanism, and the other end is positioned inside the valve body and connected with the disk plate assembly; a valve body sealing surface used for matching with the disk plate assembly is arranged inside the valve body; the disk plate assembly comprises a disk plate, a pressure plate and a seal ring; the seal ring comprises a seal end and a fixed end; the fixed end is positioned between the disk plate and pressure plate; the seal end is positioned outside the disk plate, and used for matching with the valve body sealing surface; and the cross-section area of the seal end is smaller than that of the disk plate. The seal-ring-bearing three-eccentric seal butterfly valve can implement zero medium leakage, well improve the opening and reversing sealing properties, and widen the application range of the three-eccentric seal butterfly valve.

The invention discloses a double-gear type linkage speed change device. The device comprises a speed change device main body, a displacement device is arranged at the bottom of the inner end of the speed change device main body, a first speed change fluted disc is rotationally connected to one side of the front end of the displacement device, a second speed change fluted disc is rotationally connected to the other side of the front end of the displacement device, a first regulation and control device is slidably connected to the lower end of the first speed change fluted disc, a second regulation and control device is slidably connected to the lower end of the second speed change fluted disc, the first speed change fluted disc comprises a first ring gear, a second ring gear, a first contact disc, balls, a second contact disc and a third ring gear, the first ring gear is arranged in the center of the inner end of the first speed change fluted disc, the inner end of the first ring gear is rotationally connected with the balls, and one sides of the balls are rotationally connected with the first contact disc. According to the double-gear type linkage speed change device, through the arrangement of the first regulation and control device and the second regulation and control device, the purpose of inner-end double-gear type linkage speed change is achieved.

The invention relates to a fast integrated dismantling wrench which comprises a connecting rod, a ratchet wheel improved device and a ratchet wheel wrench connecting block; the connecting rod and theratchet wheel wrench connecting block are fixedly arranged on the two sides of the ratchet wheel improved device; a telescopic rod device is rotatably connected with the other side of the ratchet wheel wrench connecting block; and a chuck wrench for dismantling a cutter is perpendicularly arranged at the bottom of the ratchet wheel improved device. The fast integrated dismantling wrench is simplein structure, reasonable in design and convenient to mount; and compared with three auxiliary tools ( a chuck key, a knife rest key and a lever) of traditional lathe operation, the fast integrated dismantling wrench integrates the traditional three pieces, improves the dismantling efficiency and reduces the potential safety hazard.

A computer machining and assembling device comprises a driving device, a positioning device, a rotating device and an operation table, the driving device comprises a driving rod, a connecting rod, a sliding block, a rolling wheel and a tension spring, the positioning device comprises a positioning cap, a pin and a spring, the rotating device comprises the positioning device, a hopper, an operation face and a rotating table, an inner cavity is formed in the middle of the operation table, and a rotating shaft hole is formed in the middle of the inner cavity. A sliding groove is formed in the left side of the operation table, four supporting legs are arranged on the lower portion of the operation table, shafts for connecting the two supporting legs are arranged on the lower portions of the two supporting legs on the rear side, a spring shaft is arranged on the lower portion of each supporting leg on the rear side, and a positioning face is arranged between the two supporting legs on the left side.

The invention relates to an inclination angle alignment controllable thread tightening mechanism and an operation method. The inclination angle alignment controllable thread tightening mechanism comprises a tightening mechanism (1), a connecting bracket (3) and a swing wrench (5), wherein the tightening mechanism (1) is connected with the swing wrench (5) through a telescopic two-stage universal joint connecting shaft (2) and transmits torque and rotation action; and an elastic assembly (4) is arranged between the swing wrench (5) and the connecting bracket (3) and provides elastic support forthe swing wrench (5). During thread installation, the tightening mechanism (1) drives the swing wrench (5) to rotate, a centrifugal mechanism on the swing wrench (5) can provide centrifugal force ina rotating process, and the swing wrench (5) deflects under the combined action of centrifugal force, elastic force of the elastic assembly and internal resistance of the mechanism. Under the condition that a certain included angle exists between central shafts of two parts in threaded fit, inclination angle deflection alignment can be achieved, threads can be screwed in, in the working conditionof mechanically aligning and installing the threads, after the central points of two matched parts are aligned, inclination angle alignment and thread assembly tightening can be carried out.

The invention relates to a winding and clamping device of a flexible substrate. The device includes a clamping sleeve, a clamping core and a pressing apparatus. The clamping sleeve is provided with a material-feeding groove which is used for the flexible substrate to pass through. The clamping sleeve externally sleeves the clamping core. The pressing apparatus passes through the clamping sleeve and pressing the clamping core tightly to enable the clamping core to be attached to an inner wall of the clamping sleeve. The pressing apparatus is formed by a plurality of fastening screws which are in parallel with each other. A plurality of screw holes are formed in the clamping sleeve, wherein the number of the screw holes is same as that of the fastening screws. Each fastening screw passes through the screw hole and presses one side of the clamping core tightly. The winding and clamping device has advantages of being simple in structure and convenient to operate, and being capable of achieving a uniformly-forced clamping operation of the flexible substrate. The winding and clamping device belongs to the technical field of mechanical winding process.