3results about How to "Save radial space" patented technology

The application discloses a kind of semi-active shock absorber, including cylinder body assembly and the base fixed in the rear end of cylinder body assembly, the cylinder body assembly includes pressure cylinder, intermediate cylinder and oil storage cylinder, piston assembly is arranged in the sliding seal of pressure cylinder, and pressure cylinder is divided into pressure cylinder upper cavity and pressure cylinder lower cavity, piston rod is arranged in the pressure cylinder upper cavity, the front end of piston rod extends to the outside of cylinder body assembly, and rear end is fixedly connected with piston assembly, valve group and oil circuit system are arranged on the base, the front end of intermediate cylinder is communicated with pressure cylinder upper cavity, and rear end is communicated with pressure cylinder lower cavity and oil storage cylinder by oil circuit system, and the valve group includes first high-speed on-off valve, second high-speed on-off valve, manual overflow valve, electric control proportional valve and third high-speed on-off valve which are distributed along the circumferential direction and surround the outer circumferential surface of cylinder body assembly.The application is integrally arranged with all control valves and shock absorber, and installation space is reduced, which can be interchangeably installed and used with passive shock absorber, without changing vehicle bogie structure.

The utility model discloses a booster suitable for a photovoltaic tracking system, which relates to the technical field of photovoltaic tracking and comprises a fixing part, a first connecting part and a second connecting part. The movable part is in rotary fit with the fixed part, and a second combination part is arranged on the movable part; the power assisting unit comprises an elastic part; the elastic part is arranged between the movable part and the fixed part, one end of the elastic part is connected with the fixed part, and the conversion structure is arranged at the other end of the elastic part and located between the movable part and the fixed part; the switching structure comprises a switching part, and the switching part and the elastic part are sequentially arranged in the axial direction of the fixing part; the change-over part is matched with the second combination part to achieve force storage or energy release of the elastic piece, or the change-over part is matched with the first combination part to achieve deformation of the elastic piece. The utility model has the advantages of safety, reliability, high automation degree, strong practicability, smaller radial size, economy and environmental protection.

The utility model relates to the technical field of robots, in particular to a compact robot joint module which comprises a motor and a harmonic reducer installed at one end of the motor, the harmonic reducer comprises a rigid wheel provided with a wave generator shaft, and a cross bearing, a flexible wheel and a flexible bearing which are sequentially arranged from outside to inside in the radial direction, the rigid wheel is connected to the inner ring of the cross bearing; the inner ring of the flexible bearing is connected with a cam shaft which is connected with a rotor of the motor, a wave generator shaft is inserted into the cam shaft, and a motor end cover and a motor rear cover are sequentially installed at the end, away from the harmonic reducer, of the motor. The motor end cover is provided with an encoder, the end part of the cam shaft extends into the motor end cover and is provided with a large magnetic ring, the end part of the wave generator shaft extends into the motor end cover and is provided with a small magnetic ring, and the large magnetic ring and the small magnetic ring are arranged in sequence; and a motor bearing is arranged between the motor end cover and the cam shaft. The motor has the advantage that the size is reduced as much as possible under the condition that the torque is guaranteed.