45results about How to "Many stalls" patented technology

The invention discloses a measuring device for a hysteresis loop made of a ferromagnetic material and an application method of the measuring device. The measuring device for the hysteresis loop made of the ferromagnetic material comprises an excitation circuit, a control circuit, an integrating circuit, a sampling resistor circuit, a liquid crystal display circuit, a key detecting circuit and an oscilloscope. According to the method, step values of excitation voltage and excitation resistance are set through programming a singlechip; the oscilloscope displays the hysteresis loop to be measured; and an upper computer measures and analyzes the coercivity, the remanence induction strength, the maximum field, the maximum magnetic induction strength and the magnetic hysteresis loss of the ferromagnetic material according to the hysteresis loop. The original mechanical switch and manual knob type switch control mode is replaced by a program control mode, and shortcomings that contacts of a knob switch are in a poor contact state easily, gears are easy to loosen, and the like are overcome. By an experimental instrument developed in the invention, the reliability of experimental equipment can be increased, and the service life of the experimental equipment can be prolonged. Owing to the program control mode, the step values of the excitation voltage are low, gears of the excitation voltage are sufficient, measurement precision is high, and practicality and accuracy are good.

The invention discloses a double-clutch automatic transmission without a reverse gear shaft. The double-clutch automatic transmission comprises a clutch 1, a clutch 2, an input shaft 1, an input shaft 2, an output shaft 1, an output shaft 2 and a differential gear, wherein the input shaft 1 and the input shaft 2 are coaxial, the input shaft 2 rotates around the input shaft 1; the output shaft 1 is provided with a main reduction gear 2, a reverse gear driving gear, a first gear driven gear, a second gear driven gear, a third gear driven gear and a fourth gear driven gear; the output shaft 2 is provided with a main reduction gear 2, a reverse gear, a fifth gear driven gear, a sixth gear driven gear and a seventh gear driven gear; the third gear and the fifth gear share one driving gear on the input shaft 2, the fourth gear and the sixth gear share the driving gear on the input shaft 1; and the clutch 1 controls the second gear, the fourth gear, the sixth gear and the reverse gear, and the clutch 2 controls the first gear, the third gear, the fifth gear and the seventh gear. By installing one reverse gear driving gear related to low gear on the output shaft 1 and one reverse gear driven gear on the output shaft 2, the reverse gear installation without the reverse gear shaft can be realized; and the transmission has compact structure, light weight and more reasonable speed ratios of gears, thus the transmission can fit more engines and complete vehicles.

The mixed power drive unit based on automatic mechanical speed variator has one brake, two clutches, one 4-gear mechanical automatic speed variator and one planet gear rank mechanism. The 4-gear mechanical automatic speed variator consists of four meshed gear pairs, two synchronizers, two shafts and one output shaft. By means of the control on two clutches and one brake, the present invention realizes the switching among fuel oil power source driving, electric power source driving and mixed power source driving. By means of the control on two synchronizers, the present invention realizes the switching among four gears. The present invention has the advantages of compact structure, much modes and mush gears.

The invention discloses a modular combined transmission which comprises a shell and a plurality of first speed-changing modules; each first speed-changing module is composed of an input shaft, an output shaft, a three-speed device and a converter; each three-speed device is composed of a gear mechanism, a C clutch, a B clutch and a D clutch; each gear mechanism is composed of an input gear, a plurality of middle shaft gear assemblies, an output gear and a gear retainer assembly which is formed by fixedly connecting a front retainer, a middle retainer and a back retainer and is provided with two cavities; the input gear, the gear retainer assembly and the output gear are coaxially arranged and can rotate relatively between every two of the input gear, the gear retainer assembly and the output gear; the middle part of the middle retainer is provided with a center output shaft as the gear mechanism first output end; a center output shaft pipe coaxially sleeves outside the center output shaft as the gear mechanism second output end; a driving component of the C clutch is fixedly connected with an input shaft, and a driven component of the C clutch is fixedly connected with the gear retainer assembly; a rotation component of the B clutch is fixedly connected with the gear retainer assembly, and a fixing component of the B clutch is fixedly connected with a shell; the D clutch is used for switching output of the gear mechanism; and only one of the B clutch, the C clutch and the D clutch can be locked.

The invention discloses a light-duty automotive transmission with a main box and a secondary box, which has a middle shaft type fixed shaft transmission structure. Gears of the transmission comprise four forward gears and one reverse gear, and adopt full oblique tooth meshing transmission; the first, second, third and fourth gears are shifted by adopting a lock ring type synchronizer; and the reverse gear is shifted by adopting a meshing sleeve. A secondary transmission also has a fixed shaft transmission structure, and has two gears comprising a high gear and a low gear which are shifted by adopting a lock ring type high-capacity synchronizer; and the conversion of the high and low gear areas is automatically operated by an air valve. The main transmission and the secondary transmission are combined to form a layout of eight forward gears and two reverse gears. The light-duty automotive transmission has the advantages of large loading capacity, more gear number, speed ratio matching distribution according to offset geometric progression, linked operation of the main box and the secondary box, environmental protection, energy conservation and the like, has strong adaptability for various working conditions and road conditions, and can well meet the development requirement of current domestic automobiles.

The invention relates to an automobile gearbox, in particular to a combined type planetary gear set gearbox which is high in power transmission efficiency, gentle in gear shifting and multiple in gear, and is capable of partially replacing a traditional automatic gearbox. The input end of each combined type planetary gear unit in the combined type planetary gear set gearbox is connected with a power selection input unit, power output by an engine is input to the combined type planetary gear units through the power selection input units, speed changing shifting is achieved by controlling the combined type planetary gear units, speed changing shifting can be effectively performed by using a single combined type planetary gear unit, and two or more combined type planetary gear units can obtain more output gears.

The invention discloses an automobile dual-clutch transmission gear shifting mechanism. The automobile dual-clutch transmission gear shifting mechanism structurally comprises a power input shaft, two clutch input shafts, two middle shafts and an output shaft. The power input shaft is provided with an input shaft gear. The clutch input shafts are respectively provided with clutch input shaft gears and combined hydraulic clutches. Output hubs of the combined hydraulic clutches are respectively connected to a sun gear and a ring gears. The sun gear and the two ring gears are respectively provided with a brake controlling the rotation of the sun gear and the ring gears. The two middle shafts are respectively connected to two planetary gear carriers and provided with a synchronizer and middle shaft output gears. A reverse gear shaft is sequentially provided with a reverse gear shaft input gear, a synchronizer and a reverse gear shaft output gear. Two output shaft output gears are mounted on the output shaft and meshed with the two middle shaft output gears. The automobile dual-clutch transmission gear shifting mechanism has the advantages of having multiple gears and being simple in shifting control and available in gear segment configuration and can achieve 12-gear shift.

The invention relates to a rotary power head, in particular to a high-torque double-motor double-speed rotating power head, and belongs to the technical field of the drilling power head device. The rotating power head comprises a power box, the power box has a spline shaft in the center, and hydraulic motors are connected with one end of gear shafts on the left and right sides of the spline shaft, and drive the gear shafts. The hydraulic motors on the left and right sides of the spline shaft are connected to a hydraulic motor control handle via a hydraulic motor control assembly which can control the two hydraulic motors to operate independently or simultaneously. The high-torque double-motor double-speed rotating power head has the advantages of simple, compact and reasonable structure, and has the hydraulic and mechanical double shifting and many shift gears so that the rotary speed range is wide and suitable for various use conditions. The self-lubricating mechanism prolongs the life of the gear and the bearing, and the driving torque of the double motor is greatly increased.

The invention provides a modular combined transmission suitable for more gears. The modular combined transmission comprises a first gearshift module; the first gearshift module comprises an input shaft, an output shaft and a three-speed device; the three-speed device comprises a gear mechanism and clutches C, B and D; the gear mechanism comprises an input gear, an intermediate shaft gear assembly, a transition gear assembly, an output gear and a gear retainer assembly composed of a front retainer, a middle retainer and a rear retainer; the middle retainer is provided with a central output shaft serving as a second output of the gear mechanism; the outside of the central output shaft is sleeved with a central output shaft tube serving as a first output of the gear mechanism; and the first and final gears of the intermediate shaft gear assembly are respectively meshed with the input gear and the output gear, and the rest gears are meshed with a transition gear. A driving assembly and a driven assembly of the clutch C are respectively fixedly connected with the input shaft and the gear retainer assembly; a rotating assembly and a fixed assembly of the clutch B are respectively fixedly connected with the gear retainer assembly and a shell; and the clutch D is used for switching the output of the gear mechanism. One of the three clutches is selected to be locked. The modular combined transmission is simple in structure and easy to lay out.

The invention discloses a three-wheeled automobile circulating type gear shifting conjoined rear axle which comprises a gearbox body. A power input shaft, a first power transmission shaft, a second power transmission shaft and a third power transmission shaft are installed in the gearbox body; a gear shifter is installed on the power input shaft and the first power transmission shaft in a slidingmode; a shifting fork shaft is installed in the gearbox body; a shifting fork for pushing the gear shifter to slide is installed on the shifting fork shaft in an axial sliding mode; and a circulatingtype speed changing control mechanism for driving the shifting fork is further installed in the gearbox body. Gear-up or gear-down can be completed only by pushing and pulling a gear lever forwards and backwards: the gear lever is pulled forward to add one gear and pushed backward to subtract one gear, and the gear-up and gear-down gear-shifting mechanism is similar to a manual-automatic integrated manual part. By means of the design, the gear shifting speed is increased, the possibility of wrong gear shifting is greatly reduced, and revolutionary upgrading of a three-wheeled automobile control mode is achieved. The rear axle further has the advantages of compact structure, reasonable design, convenience in user operation, effective reduction of gear shifting errors and the like.

The invention discloses a diesel engine reversing fan control method. The control method is characterized by comprising a temperature calculation management method, a gear strategy setting method anda gear running time management method. The control method has the advantages of being high in automation degree, multiple in fan gears, high in stability, energy-saving and environment-friendly, and capable of reducing fuel consumption.

The invention discloses a transmission mechanism, which belongs to two parallel and opposite first shaft systems. The first shaft system includes several transmission mechanisms. The transmission mechanism includes a shaft, and a sprocket is set on the shaft. There is a first connecting sleeve between the shaft and the sprocket, and the shaft and the first connecting sleeve, and the first connecting sleeve and the sprocket are all in clearance fit, and the shaft and the first connecting sleeve, and the first connecting sleeve and the sprocket are all connected by keys ; The two adjacent transmission mechanisms on the first shaft system are connected through the second connecting sleeve, the second connecting sleeve and the shaft are clearance fit, and the second connecting sleeve and the shaft are keyed; the two first The sprockets on the shaft system are respectively connected by several chains; the invention is reasonable in design and convenient in manufacture, and can solve the problems of large volume, few gears and high manufacturing precision requirements in the existing transmission mechanism.

The invention discloses an adjustable pronunciation facilitating device, which comprises a device main body and a charging base, wherein the device main body comprises a vibration head mechanism, a vibration control integration mechanism and a power supply mechanism, and the vibration head mechanism, the vibration control integration mechanism and the power supply mechanism are in rotary threaded connection; a rechargeable battery is arranged in the power supply mechanism; the power supply mechanism is also provided with a tone tuning and frequency adjustment circuit board and a corresponding knob; and the knob is exposed out of the bottom of the power supply mechanism, rotates to adjust frequency and volume, and outputs the frequency and volume on the screen of a control unit. According to the adjustable pronunciation facilitating device, frequency and volume adjustment is added, so that the accuracy of product pronunciation is greatly improved, and the market adaptability of the product is enhanced. The knob is used for adjusting the frequency and the volume, has more tap positions and is fine and fast in adjustment. Quick-wear parts are partially optimized in structural design so as to be convenient in maintaining.