7results about How to "Increase the reduction ratio" patented technology

The utility model belongs to the technical field of speed reducers, and particularly relates to a novel speed reducer with small tooth difference. Comprising a speed reducer shell and a speed reducer end cover, a fixed gear is fixedly arranged in the speed reducer shell or the speed reducer end cover, transmission assemblies matched with one another are arranged in the speed reducer shell, and each transmission assembly comprises an eccentric input shaft, a first cycloid gear, a second cycloid gear and an output gear; when the eccentric input shaft rotates, the first cycloid gear can be driven to do cycloid rotation along the fixed gear, the second cycloid gear follows the fixed gear to do cycloid rotation, and due to the fact that the tooth number difference between the fixed gear and the first cycloid gear is the same as the tooth number difference between the first cycloid gear and the output gear, the tooth number of the first cycloid gear is the same as the tooth number of the second cycloid gear; therefore, the second cycloid gear can drive the output gear to rotate back. The reduction ratio of the small-tooth-difference speed reducer is obtained by subtracting the tooth number of the output tooth difference from the tooth number of the fixed gear and then dividing by the tooth number of the first cycloid gear or the second cycloid gear.

A speed reducing motor for an automobile pedal comprises a motor body and a speed reducing box in transmission connection with the motor body, the speed reducing box comprises a box body, and an input cavity, a speed reducing cavity and an output cavity which are communicated in sequence and are perpendicular to one another in axis are formed in the box body; the box body is provided with an input port on one side of the input cavity, and a flange cover is integrally formed on the outer side of the input port; a middle worm and a middle bevel gear arranged on the middle worm in a sleeving mode are arranged in the speed reduction cavity. An output shaft and an output bevel gear which is arranged on the output shaft in a sleeving mode and meshed with the middle worm are arranged in the output cavity, output ports are formed in the positions, at the two ends of the output cavity, of the box body, and the two ends of the output shaft penetrate through the output ports and extend to the outer side. The motor body comprises a machine shell, a stator, a rotor and a motor shaft, the machine shell is installed on the flange cover, the end portion of the motor shaft penetrates through the input port, extends into the input cavity and is in transmission connection with the middle bevel gear, and a Hall controller is arranged in the flange cover; the utility model has the advantages of compact structure, large torque, reliable self-locking, integrated control and the like.

The invention discloses a modular light rifle weapon station which comprises a modular base. The weapon station main structure is connected between the modular base and the modular cradle and used for driving the direction movement and the pitching movement of the carried rifle and providing a rotary cable interface for the control module; the modular cradle is used for clamping and fixing the firearms, providing connection for the observing and aiming module and bearing recoil impact load in the shooting process; the external shooting control execution module is connected with a grip of the carried rifle and drives a trigger of the carried rifle and a fast and slow machine mechanism to move; the observing and aiming module is used for acquiring image information of a target; and the control module is used for identifying and positioning a target, controlling the weapon station main structure to perform directional movement and pitching movement, outputting a control instruction to the external shooting control execution module, driving the trigger to realize shooting action, and driving the fast and slow machine shifting block to rotate to complete firearm gear switching. The method has excellent shooting precision and striking performance.

The utility model provides a planet series harmonic composite speed reducer, and relates to the technical field of speed reducers. The crossed roller bearing is connected to one side of the steel wheel; and the harmonic speed reduction structure is connected to the crossed roller bearing, and the harmonic speed reduction structure comprises a flexible gear switching block, a flexible gear pressing plate and a flexible gear. The planetary reducer has the beneficial effects that the planetary reducer structure and the harmonic reducer structure take the cam as a common element, and the cam and the inner gear ring are ingeniously combined, so that the advantages of high bearing capacity of planetary reducer and small volume and large reduction ratio of harmonic reducer are fully played, and the efficient, compact and stable reducer effect is realized; a planet carrier in the planetary speed reduction structure is connected with a flexible gear pressing plate so that the planet carrier and the flexible gear pressing plate can work cooperatively, power is transmitted to a sun gear through an input shaft to drive a planet gear to rotate and revolve around the sun gear, and after preliminary speed reduction is achieved, power is transmitted to the harmonic speed reduction structure through a cam.

The utility model provides a hinge and foldable electronic equipment, and relates to the technical field of electronic equipment accessories. The hinge comprises a first hinge mechanism and a second hinge mechanism which are symmetrically arranged, and each of the first hinge mechanism and the second hinge mechanism comprises an input shaft capable of rotating along the center axis of the input shaft; the swing arm is located on one side of the synchromesh gear in the radial direction, the swing arm is provided with a tooth surface structure, and the tooth surface structure is meshed with the synchromesh gear; wherein the input shaft is in transmission connection with the synchromesh gear or the swing arm, and the synchromesh gear of the first hinge mechanism is meshed with the synchromesh gear of the second hinge mechanism. Through the arrangement, the movement synchronism of the swing arms on the two sides when the hinge rotates is improved, and the movement synchronism of the first folding main body and the second folding main body of the foldable electronic equipment can be improved.

This utility model relates to the field of vehicle technology, and more particularly to a forklift drive wheel assembly and a forklift. The forklift drive wheel assembly provided by this utility model includes a mounting bracket, a drive wheel, and a drive mechanism. The mounting bracket has a first side and a second side facing away from each other. The drive mechanism includes a drive source, a gear reduction assembly, and a planetary gear assembly. The drive source is disposed on the first side of the mounting bracket, and the gear reduction assembly is disposed on the second side of the mounting bracket. The output end of the drive source is connected to the input end of the gear reduction assembly through the planetary gear assembly. The drive wheel is disposed on the first side of the mounting bracket and offset from the drive source, and the drive wheel is connected to the output end of the gear reduction assembly. By using the planetary gear assembly, the reduction ratio can be increased without changing the speed of the drive wheel, thus enabling the gear reduction assembly to adapt to drive sources with low torque, large capacity, and small size. The forklift provided by this utility model can meet the requirements of miniaturization.

The utility model provides a hollow bearing seat configuration structure of double one-way clutch of middle motor of electric bicycle, it contains: a hollow bearing seat and two one-way transmission devices with two different diameters, there is a flange outside the hollow bearing seat to combine with the chain tooth disc frame of pedal shaft, the hollow bearing seat is sleeved on the pedal shaft, and the smaller end of its diameter supports the first one-way transmission device, the one-way transmission device is directly integrated in the outer cover of motor, and the outer diameter of one end is sleeved with the planetary gear seat of motor reduction mechanism, the first one-way transmission device, on one hand, transmits the electric power of motor to the chain tooth disc frame of bicycle, and on the other hand, the rider's riding without electric power will not be affected by the magnetic hysteresis effect in the motor.