5results about How to "Increase friction torque" patented technology

The application relates to the field of vehicle technology and discloses an all-terrain vehicle, which comprises wheels, a power source, a front axle assembly and an input shaft. The wheels comprise front wheels and rear wheels. The power source drives the wheels to rotate. The front axle assembly is connected with the front wheels. The input shaft is connected with the front axle assembly and the power source. The front axle assembly comprises a driven device, an output gear, a first connecting wheel, a second connecting wheel and a friction assembly. The driven device comprises a fixedly connected driven gear and an inner housing. The output gear drives the front wheels. The first connecting wheel is engaged with the output gear. The second connecting wheel is engaged with the inner housing. The locking mechanism can drive the friction assembly to switch between a compression state and a free state. When the friction assembly is in the free state, the friction resistance between the output gear and the driven device is smaller than that when the friction assembly is in the compression state. The friction torque of the friction assembly is increased, the assembly efficiency of the friction assembly is improved, and the size of the transmission assembly is reduced.

This invention relates to the field of structural reinforcement technology and discloses a reinforcement structure for the horizontal joint of a prefabricated concrete tower for wind turbines. The structure includes a first tower, a second tower mounted on top of the first telescopic tower, and hollow blocks fixedly connected to both the first and second towers. It also includes: several anti-detachment parts arranged in a circular array on two hollow blocks; and several reinforcing parts also arranged in a circular array on two hollow blocks. This invention, by incorporating anti-detachment parts, solves the problem that existing reinforcement structures lack effective anti-detachment limiting mechanisms during use, making it difficult to achieve stable locking of connecting bolts. This makes them vulnerable to the effects of vibration and wind loads during tower operation, leading to loosening of the nuts and causing the horizontal joint reinforcement to loosen and fail, thus affecting the overall structural safety of the tower.

A novel sealed damping bearing, belonging to the field of bearing technology, includes a bearing outer sleeve, a bearing inner sleeve, steel balls, a cage, and two sealing rings. The bearing outer sleeve is disposed outside the bearing inner sleeve and coaxially arranged with it, forming a receiving cavity between the bearing outer sleeve and the bearing inner sleeve. The steel balls and the cage are disposed within the receiving cavity, with the steel balls mounted on the cage. A sealing groove A is provided at each end of the inner side of the bearing outer sleeve, and a sealing groove B is provided at each end of the outer side of the bearing inner sleeve. A sealing lip A is provided on the side of the sealing ring closest to the bearing outer sleeve, and a sealing lip B is provided on the side of the sealing ring closest to the bearing inner sleeve. The sealing rings are located at both ends of the receiving cavity, with the sealing lip A embedded in the sealing groove A, forming a contact seal with the sealing groove A. The sealing lip B is disposed within the sealing groove B. The receiving cavity is filled with grease. The beneficial effect of this invention is: to regulate the bearing friction torque and make the damping force uniform.

The application aims to provide a skirt lubrication characteristic simulation method considering piston and cylinder liner thermal deformation, comprising the following steps: setting piston second-order motion variable initial value, starting crank angle cycle; combining piston profile to calculate oil film thickness; calculating oil film pressure and micro-convex body contact pressure, using Gauss-Legendre integral to obtain oil film bearing capacity and micro-convex body contact force; calculating the force and torque of connecting rod to pin and other forces and torques at the current time through dynamic equation, solving the dynamic equation; judging whether the crank angle meets the cycle termination condition; judging whether the current working cycle meets the convergence condition, if not, updating the second-order motion variable initial value for the next calculation cycle, if yes, outputting the result. The application overcomes the problems of distorted calculation result and unstable solution under special conditions such as near explosion pressure and small minimum oil film value. It provides certain support for actual diesel engine piston skirt lubrication prediction and optimization design.

This utility model relates to the field of driven wheel braking technology, and provides a driven wheel with double-sided electromagnetic braking, including a hub body and a brake. The brake includes a stator, armature, rotor, and flange arranged in sequence. The stator is fixed to the vehicle's suspension, and the flange is connected to the stator. A hollow connecting shaft is formed by a central protrusion on one side of the hub body, and the rotor is slidably connected to the hollow connecting shaft and circumferentially fixed. This utility model uses double-sided friction for braking, resulting in greater frictional torque. Moreover, it eliminates the need to maintain a certain distance between the brake and the side of the hub body, converting the braking clearance into the clearance between the stator and the flange. This clearance can be adjusted before brake installation, making adjustment more convenient.