9results about How to "Increase shear area" patented technology

The utility model provides a moving cutter, a cutter head module, a cutter head device and a hair trimmer, the moving cutter is used for being matched with a static cutter and can reciprocate relative to the static cutter, the static cutter is arranged on the outer side of the moving cutter, the moving cutter comprises an arc-shaped shearing part, two transition parts and two fixing parts, the outer side face of the arc-shaped shearing part is used for being attached to the inner side face of the static cutter, and the two transition parts are arranged on the outer side face of the arc-shaped shearing part. Two opposite ends of each transition part are respectively connected with one end part of the arc-shaped shearing part and one fixed part, the distance between the two opposite ends of the arc-shaped shearing part is greater than the distance between the two fixed parts, and the central angle of the arc-shaped shearing part is 135-160 degrees; and / or the arc length of the arc-shaped shearing part is 5mm to 10mm. By arranging the movable cutter with the structure, the central angle of the arc-shaped shearing part is 135-160 degrees; and / or the arc length of the arc-shaped shearing part is 5mm-10mm, so that the fitting area between the arc-shaped shearing part and the static cutter can be increased, the shearing area is increased, and the shearing efficiency is improved.

The utility model discloses a torsional damper based on shear thickening fluid, which comprises a sleeve connecting piece used for being connected with a target vibration reduction component; the transmission component is used for converting vertical vibration of the target vibration reduction component on the sleeve connecting piece into rotation of a gear rotor and can reset the position of the sleeve connecting piece; the upper end cover is used for being connected with a transmission component, the upper end cover, the middle cabin and the lower end cover form a closed cavity, and the cavity is filled with shear thickening liquid; a shearing gap is formed between the gear rotor and the middle cabin, and the gear rotor is used for shearing and extruding the shear thickening fluid under the driving of the transmission component, increasing the viscosity of the shear thickening fluid and absorbing and consuming the energy of the target vibration reduction component. According to the passive damper, the advantage that shear thickening fluid rapidly consumes structural vibration energy in a high-speed mode is utilized, and the number of gear rotors can be adjusted according to actual use requirements.

The present invention discloses a crushing and solid-liquid separation device and a garbage disposal device, wherein the crushing and solid-liquid separation device includes a box body, the box body is provided with a feed port, a discharge port located at the upper end thereof and a liquid discharge port located at the lower end thereof, a spiral conveying shaft is vertically arranged in the box body, the spiral conveying shaft is connected to a driving device for driving its self-rotation, the spiral blades of the spiral conveying shaft are located in a solid-liquid separation barrel, the solid-liquid separation barrel is located in the box body and is connected with the feed port, the discharge port and the liquid discharge port, and the inner wall of the solid-liquid separation barrel is provided with a cutter that forms a shear force with the spiral blades on the spiral conveying shaft. This scheme enables the solid to move upward and the liquid to move downward to achieve solid-liquid separation, adopts the spiral blades and the cutter to cooperate to generate shear force, and the conveying and crushing are synchronized. The entire device only needs one power source to achieve garbage crushing and solid-liquid separation, the device has high integration, small size, and is easy to process, and the equipment cost and use cost are low, which is convenient for application in homes, canteens, restaurants and other occasions.

The utility model discloses a motorcycle front magnetorheological damper and motorcycle, including working cylinder, guider assembly, piston assembly, floating piston assembly, magnetorheological fluid, outer tube support assembly, ECU control unit and sensor, guider assembly, piston assembly and floating piston assembly are located in the inside of working cylinder, and piston assembly includes built -in solenoid and damping passage, and damping passage penetrates the upper and lower end of piston assembly, and magnetorheological fluid fills the working cavity between guider assembly and floating piston assembly, and, outer tube support assembly is at least partially coated in the outside of working cylinder, and is connected with guider assembly, and ECU control unit and solenoid electric connection are used for the signal adjustment input to solenoid's current according to sensor, like this through solenoid and the combination of magnetorheological fluid, ECU control unit can real -time regulation magnetic field intensity, change the viscosity of magnetorheological fluid to dynamic control damping force.

The self-stress hollow slab structure of the bridge comprises a hollow slab and a self-stress rigid connection beam, the hollow slab is composed of a self-stress bottom plate, two thin rib plates and a top plate, and the self-stress rigid connection beam is poured above the extending parts of the two adjacent bottom plates; the self-stress rigid connection beam is composed of micro-expansion concrete, a rigid connection beam longitudinal rib, a rigid connection beam stirrup, a left single-limb rib, a right single-limb rib, two adjacent lower inclined steel bar extending parts and two adjacent upper inclined steel bar extending parts. The construction method comprises the following steps: a) welding the expansion plates and the longitudinal self-stress ribs; b) pouring high-expansion concrete; c) supporting an inner template of the hollow slab; d) pouring common concrete; e) binding a steel reinforcement framework of the self-stress rigid connection beam; and (f) micro-expansive concrete is poured. According to the bridge self-stress hollow slab structure and the construction method thereof, rigid connection between the hollow slab and the self-stress rigid connection beam is achieved, the situation that a single hollow slab is stressed is avoided, and the service life of the hollow slab is prolonged.

The utility model relates to the technical field of bridge design and construction, and provides a structure beneficial to hollow slab hinge joint pouring and shear connection. The hinge joints are formed by a plurality of hollow slabs at certain intervals in the width direction. The hinge joint distance of a traditional hollow slab is increased, the hinge joint participates in shear resistance within the full height range, the U-shaped steel plate is arranged at the position of the bottom plate of the hollow slab, and the steel plate is squeezed into a notch reserved in the bottom plate through elasticity of the steel plate to serve as a bottom die for pouring hinge joint concrete and plays a role of a dripping eave in the operation period. Shear-resistant assemblies which are arranged in a staggered mode are embedded in webs, facing the hinge joints, of the hollow slabs, and each shear-resistant assembly is composed of a perforated steel plate embedded in the corresponding hollow slab, a connecting steel plate and an outwards-extending shear nail. By means of the measures, the shear-resistant area, the pouring quality, the shear-resistant strength and the attractiveness of the hollow slab hinge joint are improved; the technical problems that in the prior art, a gap of only 1 cm exists between every two adjacent hollow plate bottom plates, hinge joint concrete is difficult to pour, the connection strength is poor, and water seepage is prone to occurring are solved.

The invention discloses a multifunctional rock core shear strength testing device and a testing method. The device comprises a base body, a testing cavity located in the base body, a step surface located at the bottom end of the testing cavity and a containing cavity communicated with the testing cavity and located below the testing cavity, and the containing cavity is adjacent to the step surface; the axial positioning assembly is matched with the step surface; the shearing shaft is positioned in the testing cavity and is over against the accommodating cavity; the axial positioning assembly is used for axially positioning one end or two ends of a tested rock core, and the shearing shaft is used for loading the tested rock core in the radial direction. The invention provides a multifunctional rock core shear strength testing device and a multifunctional rock core shear strength testing method. The problem that in the prior art, a rock shear strength testing device is poor in adaptability to rock cores in the petroleum industry is solved.

This invention provides a passive magnetorheological damper with adjustable swing gap, comprising a cylinder, a piston rod, and a piston assembly. The cylinder includes a cylinder barrel with openings at both ends along the axial direction and end caps respectively connected to the openings of the cylinder barrel. The piston assembly is slidably disposed within the cylinder barrel. The connecting end of the piston rod is connected to the piston assembly, and the free end of the piston rod extends axially through the end caps. The piston assembly includes a piston end cap and several damping components distributed circumferentially on the piston end cap. The connecting ends of the damping components are hinged to the piston end caps, and the free ends of the damping components can be driven to move away from the inner wall of the cylinder barrel. The invention also includes an adjustment component disposed within the cylinder barrel, which drives the free ends of the damping components to swing away from the inner wall of the cylinder barrel around the hinge point. This damper requires no external power supply or sealing element, has a mechanically adjustable swing gap, a compact structure, and a large output damping force, which is beneficial for the further promotion and application of magnetorheological technology.

The utility model relates to the technical field of bridge reinforcement, in particular to a shear resistance and transverse reinforcement device for a concrete hollow slab bridge, which comprises a bridge, the bridge is composed of a plurality of longitudinally arranged hollow slabs, a hinge joint is arranged between any two adjacent hollow slabs, and a pavement layer is paved on the bridge floor of the bridge. The fish-bellied supporting beams are horizontally and transversely arranged, and the upper surfaces of the fish-bellied supporting beams are attached to the lower surfaces of any four adjacent hollow slabs; the fish-bellied supporting beam comprises a main beam and two auxiliary beams which are transversely arranged, the two auxiliary beams are in front-back symmetry about the main beam and are integrally connected with the main beam, anchoring holes I which are through up and down are formed in the middle and the two ends of the main beam, and the positions of the three anchoring holes I correspond to the positions of the three hinge joints among the four corresponding hollow slabs one to one; the problems that an existing method for reinforcing and transforming the hollow slab bridge is long in construction period, large in traffic influence and weak in shear bearing capacity are solved.