52results about How to "Variable speed realization" patented technology

The invention discloses an electromagnetic mixing toothless ring planetary gear shifting system, which comprises an input shaft, an input planet carrier and a plurality of electromagnetic gears are arranged on the input shaft, and the electromagnetic gears are respectively controlled to work by four switches, each electromagnetic gear and the multiple evenly arranged output magnetic gears form a group, the centers of the multiple output magnetic gears which are in different groups but the in the same direction are on the same straight line and are connected with a same planetary rotating shaftI which is connected with an output planet carrier, the input planet carrier is connected with a planetary rotating shaft II which is eccentrically connected with a plurality of output magnetic gearswhich are in different groups but in the same direction.

The invention provides an executing element which achieves the manual / electric operation switching and changes the speed of an output shaft with a simple structure, as well as a valve device and a throttle device using the executing element. The executing element achieves movable operations to a manual / electric clutch gear (8) which consists of a plurality of gears which are coaxial and rotate integrally along a fixing shaft (9), thereby canceling the joggling between a front-stage side transmission gear or a rear-stage side transmission gear and the manual / electric clutch gear (8) and joggling the manual / electric clutch gear (8) and the rear-stage side transmission gear which produces a desired deceleration ratio.

The invention discloses a connecting device. The connecting device comprises a shell, at least one connector and a magnet. The connectors and the magnet are located on the same side of a module. One end of each connector extends out of the shell. The other end of each connector is connected with an inner component in the shell. Each connector comprises a positive-electrode power supply contact terminal, a negative-electrode supply contact terminal and a power signal contact terminal. Connection, power supply connection and data transmission between connecting devices can be achieved through the magnet and the connectors. Connection between the connecting devices and control over the connecting devices can be achieved, and the connection effect is good. The invention further provides a spliced toy and a spliced toy car, wherein the spliced toy is composed of multiple connecting devices, and the spliced toy car is composed of multiple modules containing the connecting devices. Through different combination modes between the multiple modules of the spliced toy car, toys with various functions and shapes can be spliced, so that the spliced toys have multiple functions. By the adoption of the connecting device, the spliced toy and the spliced toy car, the practical ability and the intelligence of children can be greatly improved, and the connecting device, the spliced toy and the spliced toy car are good tools for development of the intelligence, the imagination and the creativity of children.

The invention discloses a clutch control mechanism which is mounted in a hub of a wheel and comprises a control rod, a stay seat and a mounting seat. The control rod is arranged on a hub shaft and isused for driving a clutch to axially move along the hub shaft of the hub; the stay seat is used for driving the control rod to axially move along the hub shaft; the fixing seat is fixedly connected with the hub shaft; the mounting seat is connected with the clutch by a compressed first elastic component. The clutch control mechanism has the advantages that clutch gear-shifting procedures can be smoothly carried out under the control of the clutch control mechanism, and accordingly the use experience feeling of users can be improved.

The invention discloses a workpiece grinding double-power high-precision grinding machine capable of achieving intelligent transmission switching. The workpiece grinding double-power high-precision grinding machine comprises a workbench, a protective housing, a driving assembly, a grinding assembly, a speed changing assembly and a cooling assembly. The driving assembly is arranged at the top of the workbench. The speed changing assembly is arranged on the protective housing and is in transmission connection with the driving assembly. When the grinding machine works, a main motor is powered upto drive the driving assembly to rotate; at the moment, the driving assembly is in transmission connection with the speed changing assembly; the speed changing assembly drives the grinding assembly torotate through rotation; the protective housing is provided with a rotatable stop handle; the stop handle is rocked manually, so that gears on the speed changing assembly are engaged with gears on the driving assembly; when a large gear on each speed changing gear is engaged with the small gear of the driving assembly, the speed of the grinding machine is increased; when the large gear on the driving assembly is engaged with the small gear on the speed changing assembly, the speed of the grinding machine is decreased; and through engagement of the large gears and the small gears, the transmission ratio is changed, and speed changing is achieved.

The present invention relates to a planetary gear set with one side of a planetary carrier extending to form gear teeth, and to a power transmission apparatus having reduced rotating speed input from a driving power source and input to one actuating means of the planetary gear set and a transmission power source rotating speed is input to the other actuating means to achieve a plurality of gear shifts, and which receives generating power from an output shaft, stores electrical energy, and utilizes the stored electrical energy to control transmission power source, thereby controlling the transmission input shaft with ease. The power transmission apparatus comprises: an input shaft, one end of which is constantly connected to the driving power source to receive power, and to which a driving gear is fixed; a deceleration unit coupled to the driving gear to reduce the rotating speed of the input shaft; a planetary gear set including 1st actuating means coupled to the deceleration unit to receive rotating speed of the deceleration unit, 2nd actuating means for receiving gear-shifting power, and 3rd actuating means for generating output speed; a gear shift unit connected to the transmission power source to receive power for gear-shifting, and coupled to the 2nd actuating means to transmit power for gear-shifting to the 2nd actuating means; and an output shaft fixed at the 3rd actuating means to deliver an output speed. The 2nd actuating means has a rotary shaft and the gear shaft unit has a rotary shaft, wherein the two rotary shafts are arranged vertically to one another. A torque control shaft is connected to the 2nd actuating means to receive rotating force of the 2nd actuating means via power transmission means. The torque control shaft is equipped with a generator for generating electrical energy. A battery for supplying power to the transmission power source is connected to the generator.

The invention provides an executing element which achieves the manual / electric operation switching and changes the speed of an output shaft with a simple structure, as well as a valve device and a throttle device using the executing element. The executing element achieves movable operations to a manual / electric clutch gear (8) which consists of a plurality of gears which are coaxial and rotate integrally along a fixing shaft (9), thereby canceling the joggling between a front-stage side transmission gear or a rear-stage side transmission gear and the manual / electric clutch gear (8) and joggling the manual / electric clutch gear (8) and the rear-stage side transmission gear which produces a desired deceleration ratio.

The invention discloses a stepless speed change device which comprises a vehicle frame, wherein the vehicle frame comprises a front frame and a rear frame which are connected fixedly by a connecting frame and are arranged in parallel; a front friction disc is arranged at the front end of the front frame; a rear friction disc is arranged at the rear end of the rear frame; a transmission shaft support is arranged on the front frame; the transmission shaft sequentially penetrates through the connecting frame of the vehicle frame and the transmission shaft support. According to the stepless speed change device disclosed by the invention, by utilizing friction wheels, the power conveys to the rear friction disc from the front friction disc through the transmission shaft, and the shaft sleeve can control different positions of a front friction wheel and a rear friction wheel which are located on the front friction disc and the rear friction disc to realize speed change; gear cables penetrate through gear cable holes, the gear cables are pulled by utilizing fingers, and sliding of the shaft sleeve on the vehicle frame is realized by cooperating with a reset spring; and the friction wheels are shifted in the radial directions of the friction discs, so that the speed change is realized. In addition, the device is simple in structure, convenient to operate, and high in efficiency and economic.

The invention discloses a bicycle variable speed bar end which is installed on the front side of the bending part of one end of a bicycle cross handle. The bottom of the variable speed bar end is provided with a brake lever; the inner side part of the variable speed bar end is provided with a variable speed driving lever capable of being wrenched up and down; the front end of the inner side of the variable speed bar end leads a shift cable out and is connected with a wrench in a rotating mode; the other end of the wrench extends to the cross handle and is arranged above the variable speed driving lever; the wrench is composed of a wrench seat and a wrench handle, wherein the wrench seat movably passes through and is sleeved in the shift cable; the wrench seat and the wrench handle are connected in a rotating mode by a spindle; the wrench handle extends to the cross handle and is arranged above the variable speed driving lever; the wrench and the variable speed driving lever can be formed in a whole; and the wrench extends to the cross handle. The invention not only can hook the brake lever to brake the bicycle but also can pull the variable speed driving lever to realize speed variation and improve the safety of a rider on the premise that palms can hold the cross handle.

A power assembly for a crawler tractor, comprising an engine, a steering pump driving device, a steering pump, a clutch, a shuttle gear device, a main transmission device, an auxiliary transmission device, a power output, and a main reduction gear composed of a small bevel gear and a large bevel gear device, a differential steering device group composed of a first differential steering device and a second differential steering device, and a driving wheel; the present invention adopts the auxiliary transmission device and the main transmission device staggered; the main transmission device and the auxiliary transmission can be realized. The common gears between the devices reduces the number of transmission gears and shortens the axial distance of the gearbox; the dual power confluence technology of the planetary gear train and the idler and three-stage gear reduction; the steering process is precise and can be continuously changed. The controllability is good, the left and right wheels can rotate in opposite directions, and the in-situ steering can be realized; the pump drive device is set before the main clutch; the steering action is not affected by the main clutch cut off, and the steering safety of the tractor is high when shifting gears.

The invention relates to robots, and discloses a robot for rescuing. The robot comprises a controller, a base plate, a traveling device arranged at the lower end of the base plate, arm devices arranged on the base plate and grapping devices connected with the arm devices. The robot is simple in structure production, no complicated equipment is used, and many functions can be achieved; the control mode that manual control and wired control are combined is adopted in the robot, thus the control difficulty is lowered, the overall construction cost of the robot is low relatively, and meanwhile, the stability and the reliability are also increased; the arm devices can rotate by three hundred and sixty degrees; the width of the robot can be changed, the change range is from 260mm to 410mm, and the robot can pass through a barrier with the width being 240mm to 400mm; the speed is adjustable, and two kinds of speed of low-speed fine adjustment and high-speed running are set.

The invention discloses an internal contact conical ring type continuously-variable transmission. Two conical wheels are in internal contact with two conical rings respectively, the stress of a contact area is small, and the service life can be improved. Meanwhile, the reliability is high and the power transmission efficiency is high. The continuously-variable transmission comprises a shell, an input shaft, a planetary line, the input conical wheel, the conical rings, the output conical wheel, an output shaft, a differential mechanism, an output gear, a loading mechanism and a speed changing mechanism, wherein the input shaft, the planetary line, the input conical wheel, the conical rings, the output conical wheel, the output shaft, the differential mechanism, the output gear, the loading mechanism and the speed changing mechanism are located in the shell. Power is transmitted between the output conical wheel and the input conical wheel through the conical rings which are arranged outside the two conical wheels in a sleeved mode. The loading mechanism is a hydraulic-mechanical loading mechanism formed by coupling a hydraulic part and a mechanical part. The speed changing mechanism is of a structure similar to a bearing, and speed changing is realized by pushing an outer ring to drive the conical rings.