9results 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.

The utility model provides a kind of combined disc spring device's assembly structure, belong to disc spring assembly technical field, the assembly structure of this combined disc spring device, including disc spring body, compression sleeve ring and positioning pin, disc spring body is conical platform and is provided with central through-hole in center, the outer circumferential edge of disc spring body forms annular pressure surface downward, compression sleeve ring is circular ring structure and is sleeved in the outside of disc spring body, annular gap is formed between the inner circumferential surface of compression sleeve ring and the outer circumferential surface of disc spring body, positioning pin is arranged on the side wall of disc spring body, one end of positioning pin is fixed on disc spring body, the other end of positioning pin extends to the inside of compression sleeve ring and is abutted with the inner circumferential surface of compression sleeve ring, the upper end surface of compression sleeve ring is provided with annular boss, annular boss is evenly distributed with limit groove along the circumferential direction of compression sleeve ring, the extension end of positioning pin is inserted into limit groove, pre-compression space is formed between the lower end surface of disc spring body and the inner circumferential bottom surface of compression sleeve ring.

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 invention discloses a rotary connector and an assembly method thereof. The rotary connector includes a connecting portion and a slip ring assembly, wherein the slip ring assembly is coaxially arranged with the connecting portion and is rotatably connected; the rotor assembly includes a core shaft, a rotor pressure plate and a plurality of rotor ring sheets; a rotor sliding sheet is arranged on the outer side of the rotor ring sheet; a rotor terminal sheet is arranged on the inner side of the rotor ring sheet; the stator assembly includes a stator upper pressure plate, a stator lower pressure plate, a guide connecting rod and a plurality of stator ring sheets; the plurality of stator ring sheets are located between the stator upper pressure plate and the stator lower pressure plate, and the stator upper pressure plate and the stator lower pressure plate are connected by a plurality of studs; a plurality of stator brush sheets are evenly distributed on the inner side of the stator ring sheet; a stator terminal sheet is arranged on the outer side of the stator; the rotor ring sheets and the stator ring sheets are alternately distributed along the axial direction of the core shaft; when the connecting portion rotates, the core shaft and the rotor ring sheets connected to the core shaft can be driven to rotate. The present invention can pass a large current or signal, has high precision and reliability, and is easy to assemble.

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.

The present invention discloses a large tapered roller bearing oil-replenishing retainer, comprising a left ring and a right ring, wherein a plurality of beams are arranged circumferentially on the side wall of the left ring, pockets for accommodating external rolling bodies are formed between adjacent beams, and a fixing hole is provided on the side wall of the right ring corresponding to each beam position, and a fixing rod is penetrated through each fixing hole, and each beam is provided with a fixing groove for adjacent fixing rods to penetrate and threadedly engage along its length direction, and each fixing rod is provided with an oil-replenishing member for replenishing grease to adjacent pockets. The present invention solves the problem in the prior art that there is a lack of a retainer that is easy to install and convenient for replenishing oil to rolling bodies in pockets.

The brake comprises a shell part, a first brake disc, a rotor and a second brake disc which are sequentially arranged in the axial direction, and a driving part can drive the first brake disc to move between an adsorption position and a braking position. The rotor comprises a first friction face and a second friction face which are arranged on the two sides of the rotor in the axial direction respectively, the first brake disc is provided with a first binding face, and the second brake disc is provided with a second binding face. At least one of the first friction surface and the second friction surface intersects with a vertical plane; when the first brake disc is located at the adsorption position, the first brake disc is attached to the shell part; when the first brake disc is in the brake position, the driving part applies pressure pointing to the side where the second brake disc is located to the first brake disc, so that the first attaching face is attached to the first friction face, and the second attaching face is attached to the second friction face. According to the brake and the robot provided by the invention, under the condition of the same friction torque, the volume mass of the brake can be greatly reduced.