8 results about "Static bending" patented technology

The present invention relates to the field of magnetic detection technology, and discloses a nanocrystalline strip magnetic testing device, including a nanocrystalline strip detection box, wherein both sides of the inner wall of the nanocrystalline strip detection box are fixedly connected with brackets, the outer walls of the two brackets are rotatably connected with rotating bodies through a second rotating shaft, and the outer walls of the two rotating bodies are rotatably installed with limit members, wherein the limit members are composed of two clamping rollers that can be adjusted to be close or far away, and further include a bending assembly, wherein the bending assembly can bend the nanocrystalline strip located between the two groups of rotating bodies, and the bending has two states, one of which is static bending and the other is dynamic bending. The present invention cooperates with the friction wheel, the friction plate and the clamping roller, so that the clamping roller actively rotates to send the nanocrystalline strip to the middle, thereby reducing the pulling force on the nanocrystalline strip as much as possible, thereby reducing the influence of the pulling force on the magnetic performance result, and making the final test result more accurate.

The application relates to the technical field of material testing, and discloses an alumina fiber composite material flexibility testing device and method, which comprises a detection frame body, an external roller shaft support is arranged on one side of the detection frame body, and a pay-off roller and a winding roller are rotationally arranged on the external roller shaft support. The cooperation of the elliptical rotating roller arranged in the detection frame body and the double-roller assembly can not only extrude the material to be detected into a limit bending state in the shape of Chinese character 'z', but also continuously rotate the elliptical rotating roller through an external driving mechanism. During the rotation, the material is subjected to periodic upward lifting and downward releasing beating actions. The design simulates the repeated friction, rubbing and vibration load of the material in actual use, overcomes the defect that the traditional technology can only be used for one-time static bending, and makes the test data more reflect the real flexibility life of the material under long-term dynamic working conditions.

The utility model discloses a static bending force detection device for a flexible circuit board, which comprises a base, a fixed support frame, a movable support frame, a support shaft, a movable plate, a torsion mechanism, a pressing mechanism and a bending driving mechanism, and is characterized in that the fixed support frame is fixedly mounted on the base, the support shaft is rotatably connected onto the base and is fixedly connected with the movable support frame, and the movable plate is fixedly connected with the movable support frame. A movable plate is arranged in the movable supporting frame, a rotating shaft is fixed to the movable plate and rotationally connected with the movable supporting frame, a torsion mechanism used for driving the rotating shaft and the movable plate to rotate is installed on the movable supporting frame, and the fixed supporting frame and the movable plate are each fixedly provided with a pressing mechanism. A bending driving mechanism used for driving the supporting shaft and the movable supporting frame to rotate is installed on the base. The flexible circuit board torsion tester is simple in structure and convenient to operate, can perform bending test and torsion test on a flexible circuit board, and has more comprehensive functions.

The utility model discloses a railway pre-buried U-shaped bolt bending device which comprises a static bending column and comprises an attaching disc, the outer edge of the attaching disc is a concave cambered surface, a plurality of flow holes distributed at equal intervals are formed in the concave cambered surface, a containing cavity is formed in the attaching disc, lubricating oil is filled in the containing cavity in advance, ejector rods are arranged in the flow holes in a sliding mode, the ejector rods are elastically connected with the interior of the containing cavity, and the static bending column is arranged in the containing cavity. When the bolt is tightly attached to the concave arc face of the outer edge of the attaching disc, the end, located outside the flow hole, of the ejector rod is touched to enable the ejector rod to move towards the interior of the containing cavity, and the flow hole is opened. When the bolt is attached to the attaching disc, the bolt touches and abuts against the ejector rod, the ejector rod contracts inwards, the flow hole is opened, lubricating oil in the attaching disc gradually flows out to be immersed on the attaching surface of the bolt and the attaching disc, abrasion caused by sliding friction between the bolt and the attaching disc is reduced, and cracks are further reduced.

The invention provides a method for improving the static bending qualification rate of a 60E1R260 steel rail flash welding joint. According to the method, by controlling the rail bottom foot alignment tolerance, the rail bottom alignment tolerance and the rail waist alignment tolerance which are assembled before welding to be within a specific range and controlling the joint top face alignment tolerance, the rail head alignment tolerance and the rail foot edge horizontal direction alignment tolerance of a welding head after welding to be within a specific range, the obtained welding head can meet the use requirement; the problems that the deflection value meets the requirement and the force value is lower than the standard in the static bending inspection process of the low-strength-grade steel rail are solved.

The present invention provides a composite fisheye anti-skid plate for complex pavement in multiple scenarios and a preparation method thereof, and relates to the technical field of anti-skid plates. The composite fisheye anti-skid plate for complex pavement in multiple scenarios of the present invention comprises a metal substrate layer and a rubber anti-skid substrate; wherein the metal substrate layer is tightly bonded to the rubber anti-skid substrate by an adhesive; and the metal substrate layer is evenly distributed with fisheye-shaped convex holes. The composite fisheye anti-skid plate for complex pavement in multiple scenarios of the present invention has good anti-skid ability, anti-deformation ability, static bending strength and corrosion resistance, and can be applied to industrial plants, production workshops, corridors in public places, and can also be used as anti-skid paving slabs in places with poor terrain such as deserts, swamps, and coal mine tunnels. The composite fisheye anti-skid plate for complex pavement in multiple scenarios provided by the present invention can realize the rapid paving of temporary pavement in complex scenarios, protect the safety of vehicles driving on temporary paved pavement, and has low cost, light weight, easy to carry, and can be reused many times.

The invention discloses a mining dump truck wiring method and a mining dump truck, and relates to the technical field of mining dump trucks. The mining dump truck wiring method comprises the steps that a first wiring harness is arranged along a first side face and a second side face, and the first side face and the second side face are two adjacent faces perpendicular to a truck frame; the first wire harness has at least one fixing point on the first side surface, and the first wire harness has at least one fixing point on the second side surface; the ratio R1 / R2 of the turning radius R1 of the first wire harness between the first side surface and the second side surface to the static bending radius R2 of the first wire harness satisfies 1.5 < = R1 / R2 < = 1.8. According to the mining dump truck wiring method and the mining dump truck, the service life of the wiring harness of the mining dump truck can be prolonged.

A light system comprising: (a) a plurality of light sources configured to be located on a vehicle and project light outboard of a width of a vehicle; (b) one or more reflectors that are angled in a first direction relative to the plurality of light sources; and (c) one or more static bending light reflectors that are angled in a second direction relative to the plurality of light sources and the one or more reflectors.