45results about How to "Many stalls" patented technology

A hybrid drive device based on a double planetary row, the device is provided with a front planetary row and a rear planetary row, the front planetary row has a sun gear P, a ring gear S, a planet carrier, and a planetary gear V, and the rear planetary row has a sun gear Q , ring gear T, planetary gear U, the sun gears P and Q of the front and rear planetary rows are connected, the front planetary carrier is connected with the rear planetary ring gear T, the internal combustion engine is connected with the ring gear S and the planetary carrier through clutches A and B respectively, and the sun The wheel P is connected to the motor, the planet carrier is connected to the gear H, the sun gear Q is connected to the motor, the sun gear P is connected to the sun gear Q, the gear H is meshed with the gear G, the gear G is connected to the output end, and the brake C brakes the ring gear S, brake E brake ring gear T. The invention has the advantages of compact structure and less transmission parts; the planetary row has the function of stepless speed change; it has the function of shifting gears while having the function of mode switching.

The invention relates to a multi-gear multi-clutch speed changer which can satisfy the demand of having multiple gears. The multi-gear multi-clutch speed changer comprises a main input shaft, a main output shaft, multiple input side clutches, multiple output side clutches and a middle shaft. The multiple input side clutches comprise an input end, at least two separation and reunion output shafts and a corresponding input separation and reunion mechanism. Corresponding gear-shifting gear sets are arranged among corresponding sections between the separation and reunion output shafts. Each gear-shifting gear set comprises hollow sleeve gears and a corresponding synchronizer which is arranged between the two hollow sleeve gears which are arranged in pairs in an adjacent mode. The multiple output side clutches comprise an output end, at least two separation and reunion input shafts and a corresponding separation and reunion mechanism, and corresponding speed changing gear sets are arranged between the separation and reunion input shafts and the middle shaft. An output transmission mechanism used for transmitting torque of the multiple output side clutches to the main output shaft is arranged between the output end of the multiple output side clutches and the main output shaft.

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 speed changing box which comprises a front box, a back box and a front driving box. The front box comprises a front box body. A front box input shaft, a front box middle shaft and a front box output shaft are arranged on the front box body. The back box comprises a back box body. A first output shaft of the back box, a middle shaft of the back box and a second output shaft of the back box are arranged on the back box body. The front driving box comprises a front driving box body. A front drive middle shaft and a front drive output shaft are arranged on the front driving box body. According to the speed changing box, on the condition that a sliding sleeve of a front driving box synchronizer is connected with a fourth driving gear and on the condition that the sliding sleeve of the front driving box synchronizer is separated from the fourth driving gear, a tractor can respectively realize four-wheel driving and two-wheel driving. Consequently, the speed changing box enables the tractor to flexibly choose two-wheel driving or four-wheel driving according to different conditions, so that traveling requirements of the tractor on different operation working conditions can be met. Moreover, the speed changing box is large in number of gears and wide in changing range of the output speed ratio so as to enable the tractor to operate at relatively optimized traveling speed, and is good in energy-saving effect.

The invention discloses a gear shifting mechanism which comprises two mutually parallel and opposite first shaft systems. The first shaft systems comprise a plurality of transmission mechanisms, the transmission mechanisms comprise shafts, chain wheels sleeve the shafts, a first connecting sleeve is arranged between each shaft and the corresponding chain wheel, the shafts are in clearance fit with the first connecting sleeves, the first connecting sleeves are in clearance fit with the chain wheels, the shafts are in key connection with the first connecting sleeves, the first connecting sleeves are in key connection with the chain wheels, every two adjacent transmission mechanisms on the first shaft systems are connected by a second connecting sleeve, the second connecting sleeves are in clearance fit with the shafts and are in key connection with the shafts, and the chain wheels on two first shaft systems are connected through a plurality of chains. The gear shifting mechanism is reasonable in design and convenient to manufacture and can solve the problems that an existing gear shifting mechanism is large in size, fewer in gears and high in manufacturing accuracy requirement.