30results about How to "Achieve torque" patented technology

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 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 relates to a flexible substrate winding and clamping device, comprising: a clamping sleeve, a clamping core and a clamping device; the clamping sleeve is provided with a feeding groove for the flexible substrate to pass through; the clamping sleeve is covered on the clamping core In addition, the clamping device passes through the clamping sleeve and clamps the clamping core against the inner wall of the clamping sleeve. The jacking device is a plurality of parallel fastening screws; the clamping sleeve is provided with the same number of screw holes as the fastening screws, and the fastening screws pass through the screw holes to clamp one side of the clamping core. The invention has the advantages of simple structure, convenient operation, and uniform clamping of flexible substrates, and belongs to the technical field of mechanical winding processing.

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 invention discloses an outer rotor regulation type eddy current speed controller. The outer rotor regulation type eddy current speed controller comprises an inner rotor and an outer rotor, wherein the inner rotor comprises an inner rotor rotation disc in which a plurality of groups of permanent magnets are embedded; the outer rotor comprises two outer rotor motion discs which are symmetrically arranged at two sides of the inner rotor rotation disc, and a rotation liner regulating mechanism; each outer rotor motion disc is provided with a conducting metal disc; a variable gas gap is formed between each conducting metal disc and the corresponding inner rotor rotation disc; the rotation linear regulating mechanism, on one hand, enables each conducting metal disc to rotate synchronously together with the outer rotor, and on the other hand, enables the two variable gas gaps to change axially at the opposite directions or the same direction. After the structure is adopted, only one inner rotor rotation disc comprising the permanent magnets is required, so that the magnetic connection of the inner rotor and the outer rotor can be realized; the inner rotor is simple in structure, is low in processing difficulty, and is convenient for assembling and overhauling; two magnetic poles of each permanent magnet in the inner rotor rotation disc can be used at the same time, so that the permanent magnetic utilization ratio is high, the cost is reduced, and the product is economic.

The invention provides a drill bit used for petroleum well-drilling. The drill bit comprises a drill bit body and a buckling-connection ring used for being connected with a well-drilling pipe, and cutting blades and an impeller are arranged at the two ends of the drill bit body correspondingly. The buckling-connection ring sleeves the drill bit body. The drill bit body is internally provided witha first flow-passing channel communicating with an inner cavity of the well-drilling pipe and the ends of the cutting blades arranged on the drill bit body, and the cross section area of the first flow-passing channel is smaller than that of the inner cavity of the well-drilling pipe. The mode of transmitting the torque and the bit pressure through a drill column can be discarded, the torque is transmitted through a drill bit autorotation mode, the throttling pressure difference is generated in the drill bit body, under the effect of the throttling pressure difference, the drill bit generatesthe drill pressure to formation rock in contact with the cutting blades, the purpose of cutting for rock breaking is achieved, and thus the purpose of producing a micro petroleum borehole is achieved.

The invention discloses an inner rotor cooling type high-power vortex governor, which comprises an inner rotor, an outer rotor and a coolant supply and discharge system. The inner rotor includes the inner rotor shaft, the inner rotor rotating disk and two symmetrical conductive metal disks. The coolant supply and discharge system includes the coolant supply and discharge pipelines, the coolant collector and the inner rotor shaft and the inner rotor rotating disk. External heat exchange mechanism. The outer rotor includes an outer rotor shaft, two symmetrical outer rotor moving discs with magnetism and a rotary linear adjustment mechanism. There is a variable air gap between each outer rotor moving disc and the conductive metal disc on the same side. After adopting the above structure, the inner rotor and the outer rotor are connected softly (magnetically), the inner rotor has a simple structure, low processing difficulty, and is convenient for assembly and maintenance. The above-mentioned coolant supply and discharge system can reduce the temperature of the rotating disk of the inner rotor to the maximum extent, and at the same time realize air convection cooling of the permanent disk of the outer rotor, and realize high-power eddy current speed regulation.

The invention relates to a torque test device. A stimulator to be tested is fixedly arranged on a fixation base; a stimulation wire to be tested on the stimulator to be tested passes through a fixation member and is fixed by the fixation member; torque is applied to the other end of a rotation shaft, and the torque is transferred to the stimulation wire to be tested through the rotation shaft, a connection frame and the fixation member; and by visually observing whether the joint between the stimulator to be tested and the stimulation wire to be tested is deformed or broken, whether the jointbetween the stimulator to be tested and the stimulation wire to be tested can withstand the torque can be judged. The invention also provides a torque and tension test device. The torque and tension test device realizes torque and tension test of the joint between the stimulator and the stimulation wire through a structure similar to that of the torque test device and the tension of a heavy object.

This application relates to a torque detection device. The stimulator to be detected is fixed on a fixed seat, the stimulator to be detected is passed through the fixing member and fixed by the fixing member, and torque is applied to the other end of the rotating shaft. The torque is transmitted to the stimulating wire to be detected through the rotating shaft, the connecting frame, and the fixing piece, and the stimulus to be detected can be judged by observing the state of the stimulator to be detected and the stimulating wire to be detected - whether there is deformation or breakage Whether the connection between the sensor and the stimulating wire to be tested can withstand the torque. The present invention also provides a torque detection device. The torque and tension detection device realizes the torque and tension detection of the connection between the stimulator and the stimulation lead through the similar structure to the above torque detection device and the addition of the tension of the weight.

The invention provides a grab dredger and a lifting mechanism of a grab machine of the grab dredger. The lifting mechanism of the grab machine comprises one or more sets of driving units, wherein each driving unit comprises a motor, a transmission, a first coiling block and a second coiling block, the input end of the transmission is connected with a transmission shaft of the motor, a rotating shaft of the first coiling block is connected with the output end of the transmission, the block body of the second coiling block is connected with the rotating shaft of the first coiling block, and the first coiling block and the second coiling block are coaxially driven by the motor through the transmission. The mounting space of the whole lifting mechanism can be reduced, and single-drive, large-span and large-torque requirements can be met.

The invention discloses a double-tooth type linkage speed change device, which comprises a speed change device main body, a displacement device is provided at the bottom of the inner end of the speed change device main body, and a first speed change toothed plate is rotatably connected to one side of the front end of the displacement device , the other side of the front end of the displacement device is rotatably connected to a second transmission chainring, the lower end of the first transmission toothing is slidably connected to a first regulating device, and the lower end of the second transmission toothing is A second regulating device is slidingly connected, and the first transmission chainring includes a first ring tooth, a second ring tooth, a first contact plate, a ball, a second contact plate and a third ring tooth, and the first ring tooth is set At the center of the inner end of the first transmission chainring, the inner end of the first ring tooth is rotatably connected to a ball, and one side of the ball is rotatably connected to the first contact disc. The present invention is a double-tooth-type linkage speed change device, through the setting of the first control device and the second control device, the purpose of double-tooth-type linkage speed change at the inner end is realized.

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 present invention relates to a rotor for a rotating electrical machine and a method for manufacturing the same. A rotor core (15) includes a laminated structure (20) formed by laminating a plurality of magnetic plates (50) in an axial direction L. In the laminated structure (20), a plurality of magnetic plates (50) are arranged so that their positions are shifted to one side in the circumferential direction C by a certain angle each time as they go to one side in the axial direction L. The magnet insertion holes (31, 32) are formed by a plurality of through holes communicating in the axial direction L over all of the plurality of magnetic plates (50). The permanent magnets (41, 42) are twisted around the axis A so as to be accommodated in the magnet insertion holes (31, 32) from the outside in the axial direction L.

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.