7 results about "Easy fatigue" patented technology

The invention discloses a puncture type electric power fitting, and relates to the technical field of electric power fittings. The insulation piercing wire clamp aims to solve the problems of stress concentration, easy fatigue failure of contact points, uneven support and the like caused by piercing point concentration of an existing insulation piercing wire clamp. According to the invention, two groups of accommodating cavities and conductive assemblies are symmetrically arranged in an insulating shell; a plurality of groups of arc-shaped retainers which are arranged at equal intervals are arranged in each accommodating cavity, and puncture assemblies which radially displace are slidably mounted at two ends of each arc-shaped retainer; a push-pull support is slidably mounted on one side of the arc-shaped holder and used for driving the two puncture assemblies to synchronously contract or expand in the radial direction. The rotary supporting frame provides sliding support for rotation of the arc-shaped holding frame and the push-pull support, and an adjusting mechanism for controlling the push-pull support to move is installed on the rotary supporting frame. The rotation control piece is used for driving the multiple sets of arc-shaped retainers to rotate at equal difference angles. According to the technical scheme, the puncture points are spirally and uniformly distributed along the outer ring of the wire, so that the puncture stress is dispersed, and the contact reliability and the anti-seismic performance are improved.

The utility model relates to the technical field of worms, in particular to an anti-impact worm which comprises a main shaft body, a buffer layer, a damping assembly and a supporting ring. Arc-shaped reinforcing ribs are arranged on the outer surface of the main shaft body, the buffer layer is composed of a high-elasticity rubber layer and a hard alloy coating, the damping assembly comprises an end cover, a spring ring and a damping fin, and the supporting ring is provided with a flow guide groove and balls. By optimizing the structural design and material selection, the tooth crest strength is enhanced, the impact force in the punching process is dispersed, the dynamic load is absorbed, abrasion and friction loss are reduced, and the operation stability and durability are improved. The worm solves the problems that in the prior art, under the high-load and impact working conditions, fatigue fracture is prone to occurring, tooth surfaces are abraded, and the impact resistance is insufficient, and the high-performance transmission requirement is met.

The invention provides an air spring structure with a flexible supporting piston, which comprises a fluctuating piston and a shock absorber, a buckling tooth section is arranged at the upper part of the fluctuating piston, and a protective cover assembly is sleeved on the shock absorber, and is characterized in that the protective cover assembly comprises a protective cover which is of a cylindrical structure; a flexible supporting sleeve is arranged on the outer circle face of the protective cover in a sleeving mode, and the flexible supporting sleeve is in interference fit with the protective cover. A movable gap is formed between the outer side wall of the flexible supporting sleeve and the inner side wall of the buckling tooth section; a ventilation structure is arranged in the side wall of the buckling tooth section in the axial direction and penetrates through the side wall of the buckling tooth section. The problems that an existing shock absorber protection cover is high in structural brittleness, prone to fatigue failure, prone to causing abrasion to affect the service life of a shock absorber, high in cost and the like are solved.

A lateral stability control system applicable to a trailer truck, which solves the problems existing in the prior art, such as simple mechanical structure and functions, poor practicability, cumbersome manual operation process, large mechanical transmission rigidity, and easy fatigue damage to the vehicle body and transmission parts. It includes two groups of symmetrically arranged detection devices provided on the front axle of the truck chassis, and the detection device is composed of a horizontal sensor and a centrifugal force detector; emergency response devices are symmetrically arranged at the positions of the truck wheels on both sides of the truck chassis respectively, and the emergency response device is arranged between the leaf spring shock absorber and the vehicle body steel frame, and the driving end of the emergency response device is connected to the power supply device. Its design is reasonable and the structure is compact. When the truck encounters a sharp turn at high speed or the road surface inclination angle is too large, it can quickly respond, lift the vehicle body on the side to be overturned, change the position of the center of gravity of the truck, reduce the roll moment, relieve the slope and centrifugal force, and effectively improve the driving stability and safety of the truck.

The utility model discloses an accurate positioning mechanism for grabbing retaining rings, and relates to the technical field of retaining ring grapples.The accurate positioning mechanism for grabbing the retaining rings comprises a base, supporting legs are arranged on the side face of the base, and components such as a vibration valve, a threaded rod, a mechanical arm and a magnetic feeding table in accurate grabbing equipment are matched with one another, so that the retaining rings can be accurately grabbed. According to the ferromagnetic ring processing device, iron rings are processed into ferromagnetic rings after being magnetized, the ferromagnetic rings which are magnetized are automatically clamped and moved to the right side by utilizing the manipulator to move forwards, then the ferromagnetic rings are automatically released, the ferromagnetic rings are accurately clamped away, the processing speed of the ferromagnetic rings can be greatly increased through automatic moving and grabbing of the manipulator, and compared with manual operation, the processing speed of the ferromagnetic rings is greatly improved. And the automatic system can continuously work for a long time, is not prone to fatigue, is suitable for mass production, is high in consistency of automatic grabbing operation, can ensure the accuracy and stability of grabbing every time, and reduces the influence of human factors.

A shell-imitated rubber bushing design method based on a microcosmic contact mechanical model belongs to the technical field of rubber bushings, and comprises the following steps: designing a shell-imitated rubber knuckle bearing with a steel-rubber-steel interface synergistic structure; the method comprises the following steps: performing a uniaxial tensile test on a rubber bushing material to obtain stress-strain data, processing the test data by using a fitting tool, and selecting a rubber constitutive model according to a deviation value between a fitting curve and a test curve; performing contact stress analysis and static stiffness calculation on the bionic rubber bushing; the radial contact area of the rubber bushing is calculated, and the steel-rubber interface contact area is optimized by controlling the geometric angle and radius of a steel layer; and importing a single stress-strain result obtained by finite element analysis into fatigue analysis software, and predicting the fatigue life of the rubber bushing. The shell bionic structure is applied to the heavy-duty truck chassis rubber bushing, and the technical problems that an existing heavy-duty truck rubber bushing is insufficient in rigidity and prone to failure due to fatigue under high-strength dynamic loads are solved.

The invention relates to a tension spring ring hook technology, a tension spring and a pull rod assembly. The tension spring ring hook technology comprises the following steps that material preparation is conducted, specifically, a first metal body capable of generating deformation is prepared; in the first deformation stage, the first metal body is machined, so that the first metal body is spirally stacked in the first direction, a columnar space with the diameter being R is reserved in the second direction perpendicular to the first direction, and a first deformation body is formed; in the second deformation stage, the first end of the first deformation body and the second end away from the first end are bent, so that an included angle is formed between the first end and the middle section of the first deformation body and between the second end and the middle section of the first deformation body. The purpose of the invention is to overcome the defects in the prior art. The invention aims at providing a tension spring ring hook process, a tension spring and a pull rod assembly to solve the problem that an existing tension spring is prone to fatigue fracture.