8results about How to "Axial space saving" patented technology

The application provides a variable stiffness aero-engine elastic supporting structure, which comprises an inner supporting ring and an outer supporting ring, a plurality of elastic supporting members and a plurality of outward protruding bosses are arranged on the outer wall surface of the inner supporting ring, a plurality of grooves are arranged on the inner wall surface of the outer supporting ring, the inner supporting ring is connected in the outer supporting ring through the elastic supporting members, and the bosses and the grooves are matched with each other. The application can effectively reduce the axial space required by elastic supporting installation, can remove the limiter structure matched with the traditional squirrel cage elastic supporting structure, can change the supporting stiffness by designing the shape of the memory alloy under different rotating speed conditions, so that the critical rotating speed of the rotor is changed, and the excessive vibration of the rotor during the operation process over the critical rotating speed can be reduced or even eliminated.

The utility model relates to a bicycle drive device technical field, specifically disclose a coaxial planetary row structure bicycle power assisting mechanism, including long axle, be equipped with the casing group on long axle, be equipped with motor assembly and planetary row gear mechanism between long axle and casing group, long axle passes through casing group, motor assembly and planetary row gear mechanism, long axle and casing group, motor assembly and planetary row gear mechanism coaxial arrangement, long axle is connected with the sprocket of casing outside, planetary row gear mechanism is located between motor assembly and sprocket, planetary row gear mechanism includes retainer, a plurality of planetary wheel, sun wheel and the inner tooth ring of connecting on casing group, a plurality of planetary wheel and inner tooth ring engage, long axle is equipped with the ratchet mechanism and sensor in the retainer, and the motor shaft in motor assembly is connected through one -way bearing between sun wheel. The power assisting mechanism in scheme can improve space utilization, reduce the weight of car body, shorten axial space.

The utility model belongs to motor technical field discloses a thin type direct current brushless outer rotor motor, including the casing, the casing is the open cylinder of one end, the coaxial line is placed in the fixed shaft of casing, the coaxial line is placed and is equipped with the stator core of outside sleeve of shaft, the magnetic strip is fixed on the casing inside peripheral wall, the end cover is equipped with the open end of casing, the end cover is the disc -shaped of inside hollow, and the end cover is close to the open -mouthed of casing end, and the open end of casing is inlaid into the inside of end cover, the stator core is fixedly connected with the end cover, and the one end of shaft is passed through the end cover and is connected with the end cover rotation, the outside peripheral wall fixed support of end cover open end, and the support is located between the two ends of end cover and casing along the shaft axial direction and is away from each other, effectively reduced the thickness of motor along the shaft axial direction, realized the design of motor structure thin type.

This utility model provides a crankshaft connection structure and a piston air compressor, including a double-sided stop flange, a power take-off sleeve, and a crankshaft body. The double-sided stop flange serves as a common end cover connecting the motor housing and the crankcase. A shaft hole is located at the center of the double-sided stop flange, and the shaft hole is coaxial with the motor rotor. The power take-off sleeve is fixedly inserted through the center of the motor rotor. One end of the crankshaft body is rotatably connected to the end wall of the crankcase away from the motor housing, and the other end extends through the shaft hole into the motor housing to form a power take-off section, which is inserted and fixed to the power take-off sleeve. The portion of the crankshaft body passing through the shaft hole forms a centering section, which is coaxial with the power take-off section and rotatably connected to the shaft hole. The crankshaft connection structure and piston air compressor provided by this utility model allow the crankshaft body to obtain power through the insertion and fixing of the power take-off section and the power take-off sleeve, eliminating the need for a motor shaft and coupling, thus saving axial space and improving the compactness of the overall structure and the flexibility of the installation layout.

This invention discloses an integrated braking and grounding device for a semi-direct-drive wind turbine, comprising a motor brake disc and a grounding slip ring. The motor brake disc and the grounding slip ring are detachably connected as one unit in the axial direction via a stop and bolts to shorten the axial space. Simultaneously, the axial cross-section of the grounding slip ring is an "L-shaped" structure, consisting of an outer friction ring and an inner mounting plate made of different materials, to significantly reduce costs. Furthermore, this invention installs a speed sensor on the motor brake disc and machines its outer circumference into a gear shape to achieve single-blade turning function. This invention fully utilizes the space at the rear end of the motor by axially integrating the motor brake disc and the grounding slip ring, and significantly reduces manufacturing costs while maintaining performance by changing the material of the grounding slip ring.

The utility model provides a speed reduction motor and a range hood comprising the same, the speed reduction motor comprises a motor assembly, the motor assembly comprises a motor shaft, the second end of the motor shaft is provided with a motor bearing; the gear box assembly is connected with the motor assembly in the axial direction of the motor shaft, the first end of the motor shaft extends into the gear box assembly, and the gear box assembly comprises an output shaft and an output bearing supporting the output shaft. An inserting hole is formed in the end portion, facing the first end of the motor shaft, of the output shaft, the first end of the motor shaft is connected with the output shaft in an inserting mode, and the first end of the motor shaft and the output shaft share the same output bearing. The internal axial space of the gear motor is reasonably utilized, the axial size of the gear motor can be correspondingly reduced, and on the basis that the gear box assembly and the motor assembly are axially connected to save the radial space, the outer diameter of the motor is reduced to reduce the resistance to airflow in an air duct.

This utility model relates to the field of caliper assemblies, specifically a sensor assembly for calipers, a sensor assembly having the sensor assembly, and a caliper assembly, including a sensor body. The sensor body is connected to a first connector via a sensor wiring harness. The sensor assembly disclosed in this utility model externally connects the first connector via the sensor wiring harness. This arrangement not only facilitates subsequent insertion with a second connector but also avoids the first connector occupying the upper space of the sensor body, thereby reducing the axial space occupied by the first connector in the caliper assembly during subsequent use, which is not conducive to reducing the axial dimension of the caliper assembly.

The utility model relates to new energy vehicle technical field, concretely refers to a kind of drive axle motor, drive axle device and car, a kind of drive axle motor, including axle housing, support portion is equipped in axle housing, left drive shaft, right drive shaft are respectively fixedly connected with support portion via bearing, left drive shaft left end is left drive end, right drive shaft right end is right drive end, a kind of drive axle device, including above-mentioned the drive axle motor of described, left motor rotor is fixedly sleeved on left drive shaft, left motor stator is equipped on left motor rotor outside, right motor rotor is fixedly sleeved on right drive shaft, right motor stator is equipped on right motor rotor outside, left speed reducer is equipped on left drive shaft, right speed reducer is equipped on right drive shaft, a kind of car, including automobile chassis and control system, the frame of automobile chassis is equipped with above-mentioned the drive axle device of described, leaf spring both ends of shock-absorbing mechanism are respectively hinged with frame, the utility model axial space is small, suitable for small vehicle.