49results about How to "Improve impact efficiency" patented technology

A compliant golf club head permits a more efficient impact between a golf ball and the golf club head. Material and geometry constraints of a striking plate of the golf club head can reduce energy losses caused by large strain and strain rate values of the golf ball, these constraints on the striking plate yield a measure of the impact efficiency of the golf club head. Designating a required natural frequency range of the striking plate provides improved impact efficiency between the golf ball the golf club head.

The present invention relates to systems and methods for collecting and analyzing bioaerosols, including exhaled breath aerosol from a subject. The collection system comprises an inlet portion configured to receive a gaseous fluid containing water vapor and aerosol particles. A primary passage for gaseous fluid flow is in fluid communication with the inlet portion and configured to channel the gaseous fluid flow therethrough. An outlet portion is in fluid communication with the primary passage. A sample collection region is provided, which is configured to receive from the outlet portion aerosol particles from the gaseous fluid, wherein the aerosol particles are impacted onto a layer of ice.

The invention belongs to the field of machinery, is especially suitable for the field of excavating, and specifically relates to a step-tooth excavating method of reciprocating impact excavators, and a step-tooth reciprocating impact excavator used for realizing the step-tooth excavating method. The step-tooth reciprocating impact excavator comprises a machine body, a travelling mechanism, an impact blanking mechanism and the like; the impact blanking mechanism is arranged on the machine body; and the travelling mechanism is arranged on the lower part of the machine body. The impact blanking mechanism comprises a step-tooth impact-cutting device, an impact power box, a power impact part, an impact guiding element and the like; step teeth are formed by adjacent impact teeth arranged on the step-tooth impact-cutting device. The step-tooth impact-cutting device is driven by the power impact part, material to be excavated is impacted to be step shaped so as to obtain two or more opposite free faces, and pressure stress and/or structural strength relative to original material is reduced greatly. When the impact teeth is used for excavating for another time, the two or the more opposite free faces are used for reducing impact resistance greatly; generation of oversized material blocks, which fall because of excavating, is avoided; impaction efficiency is increased, and equipment depreciation is reduced.

A vibrating wet precipitator is designed to remove particulates from particulate-laden hot gas. The precipitator includes an array of vertical wet cords stretched within a duct. The cords are tuned to vibrate due to the gas flow by controlling key parameters such as gas flow, velocity, cord length and diameter so that particulate collection and heat transfer efficiency are maximized. The cords are part of sieves. A plurality of these sieves are arranged to define a plurality of gaps, through which the exhaust flows. The sieves and thus the cords are space so that a vortex from a first cord affects an adjacent cord and subsequently cord. The particles are then absorbed in liquid, which can be passed through a heat exchanger filtered and subsequently reused. Preferably the cord arrangement is designed to allow the cords to vibrate at high frequencies, typically 10 to 100 Hz, to maximize particulate collection.

The invention relates to a preparation method for a composite material with magnetic field regulation martensitic transformation. According to the method, two materials of Tb0.27Dy0.73Fe1.9 and Mn48Co4Ni28Ga20 are used, the granularity is uniformly mixed according to different proportions, different sintering temperatures are set, and a plasma sintering method is adopted; and under an external magnetic field, magnetostriction of a rare earth giant magnetostrictive material is taken as stress to induce appreciable martensitic transformation or martensitic variant rearrangement of a ferromagnetic shape memory alloy material. The material prepared by the method can work in a low magnetic field and work when distributed in a 0-380 K temperature region, and the magnetic field has the maximum effect efficiency of 41 K/T on the phase transition temperature.

The invention belongs to the technical field of coal mine development machinery, is used for blasting drilling holes of a hard-rock rock roadway in an underground coal mine in construction and various drilling holes in the support work of anchor rods and anchor ropes, and provides an impact type multifunctional airborne drilling rig. According to the technical scheme, the impact type multifunctional airborne drilling rig comprises a positioning oil cylinder, a propulsion slide way pressing block, a slide way seat, a propulsion slide way, a propulsion cylinder, a clamp holder, a drill rod support, a drill rod support seat, a slide way top plate, a slide way, a slide way pressing block, a slide way bottom plate, a forward and reverse large torque transmission device, an impact type rock-drilling drilling rig, a rock-drilling drilling rig fixing plate, a fixing plate slide way pressing block, a first stage oil cylinder, a secondary oil cylinder, a chain assembly and an integrated valve group. The impact type multifunctional airborne drilling rig has the advantages that the rock drilling speed is fast, the impact efficiency is high, the noise is low, drilling tools are not prone to being stuck, good appearance is achieved, collision is avoided flexibly and effectively, a propeller is protected, the number of exposed oil pipes is greatly reduced, the occurrence of oil pipe extrusion is avoided, and the overall performance of the drilling rig is improved.

Disclosed is a cone frustum hammer pore-forming machine. The lower end of a drill rod is connected with a slurry pump, the lower end of the slurry pump is connected with a suction pipe, the suction pipe is fixed in the middle of a transverse arm A, the transverse arm A, a transverse arm B, a transverse arm C, two longitudinal arms A, a longitudinal arm B and a longitudinal arm C are welded to form a stable steel structure, the lower end of the suction pipe is connected to the upper end of a suction pipe B through two bent corrugated pipes, the suction pipe B penetrates a sleeve A and a sleeve B, the lower end of the suction pipe B is connected with a suction pipe C and a suction pipe D and also fixed to a cone frustum hammer, a crank arm A is arranged in the middle of the longitudinal arm B, a driven belt pulley A is fixed to a shaft end on one side of the crank arm A, a wheel A is sleeved at a shaft end on the other side of the crank arm A, the upper portion of the wheel A is provided with a handle lever A, the handle lever A is fixed to the left of the suction pipe B, a crank arm B is arranged in the middle of the longitudinal arm C, a driven belt pulley B is fixed to a shaft end on one side of the crank arm B, a wheel B is sleeved at a shaft end on the other side of the crank arm B, the upper portion of the wheel B is provided with a handle lever B, and the handle lever B is fixed to the right of the suction pipe B.

The invention discloses a television floor stand capable of being used for a bumpy ground, and relates to the technical field of television floor stands. The device comprises a support rod, a moving frame is fixed to the bottom of the support rod, a through groove is formed in the top of the moving frame, an adapting device is arranged above the moving frame, a mounting frame is rotationally mounted at the top of the support rod, a protection device is arranged on the back face of the mounting frame, and a fixing device is arranged in the support rod. The adapting device comprises a fixing shell, and the fixing shell is fixedly installed on the outer side of the support rod. Through cooperation of the threaded rod and the threaded block, the threaded rod drives the L-shaped rod to move downwards through the threaded block, and under cooperation of the L-shaped rod and the supporting rod, the L-shaped rod abuts against the supporting rod and turns downwards, so that the supporting rod makes contact with the ground, the television floor frame adapts to the bumpy ground, and the use stability of the floor frame is improved.

The invention provides a downhole pneumatic shock wave generator, which at least comprises a generator body, a top shock wave reflector and a bottom shock wave reflector, which are elastic parts, are respectively arranged on the top and bottom of the generator body, and moreover, the top shock wave reflector and the bottom shock wave reflector are arranged on the left side and right side of the generator body, and are used for isolating the generator body from the well wall; the generator body at least comprises a housing, a duct, a nipple, a support and a piston, a movable ring A and a movable ring B are also sleeved on the outer wall of the housing, wherein the movable ring A is located under vent holes, and the movable ring B is located over the vent holes. The structure of the pneumatic shock wave generator is simple, the service life is long, and the defects of the background art are solved. The service life of the pneumatic shock wave generator can be prolonged, and moreover, the generated air shock wave is concentrated.

The invention discloses a fence vertical pile fixing device for livestock breeding, and particularly relates to the field of livestock. The fence vertical pile fixing device comprises a height settingmechanism, a connecting sleeve is slidably connected to the bottom end of the height setting mechanism, a control mechanism is slidably connected with the side end of the connecting sleeve, a fixingblock is fixedly connected with the bottom end of the control mechanism, an electromagnet is fixedly installed in the center of the fixing block, a springback damping mechanism is fixedly installed onthe inner side of the fixing block, a vertical guide rod is fixedly connected to the bottom end of the fixing block, and a magnet connecting block is slidably connected to the side end of the vertical guide rod. According to the scheme of the fence vertical pile fixing device for livestock breeding, the electromagnet is mutually matched with the vertical guide rod, the controller controls the electromagnet to be started, a permanent magnet is pushed to move downwards, a connecting column is pushed to move downwards, then a hammering hammer head is pushed to hit fixed vertical piles downwards,the connecting column moves to indirectly drive a same-direction bottom plate to abut against a control button, the electromagnetic direction is changed to attract the permanent magnet upwards, the frequent impact effect on the fixed vertical piles is achieved, and the impact efficiency is improved.

The invention discloses an impact tool. The impact tool comprises a rack, a motor contained in the rack, a transmission mechanism, an output shaft and an adjusting cup installed on the outer side of the rack, and the motor drives the transmission mechanism to rotate and drives the output shaft to do rotary output motion. The impact tool is provided with an impact mechanism and a rotation stopping part, the impact mechanism is provided with a movable ratchet fixedly held with the output shaft, an impact hammer axially sliding on the output shaft and an elastic piece sleeving the output shaft, and the movable ratchet and the impact hammer are provided with mutually coupled inclined planes; in an impact mode, the rotation stopping part abuts against the impact hammer, then the impact hammer can only move axially but cannot rotate, the impact hammer moves on the inclined plane, and an impact function is achieved under the release of the capacity of the elastic piece; and when only an electric drill mode is needed, a rotation stopping pin is separated from the impact hammer, the impact hammer and the movable ratchet rotate together, an impact mode with higher impact efficiency is achieved, and the working efficiency is improved.

The invention relates to the technical field of impact drilling machine equipment, and provides a novel efficient impact drilling machine which comprises a machine frame. A driving rear axle is connected to the rear side wall of the machine frame. The novel efficient impact drilling machine is characterized in that the driving rear axle is provided with two steel wire ropes, and the two steel wireropes pass through a stand column and are connected to a same drill bit. The defects in the prior art are overcome, the design is reasonable, the structure is compact, and the problems of low impactefficiency, poor effect and no sand discharge of an existing impact drilling machine are solved. Through the simple structural combination, by adopting the two steel wire ropes to be connected with the dill bit, the stability of the drill bit is improved, meanwhile, a mode that a smaller gear is meshed with a large gear is adopted to improve output power, the drill bit with the large weight can bedriven to work, the work efficiency is improved, strong airflow produced by an air compressor is used for discharging sand, and therefore the effect of quickly discharging the sand is realized.

The invention discloses a movable impact type large pin shaft replacement device and method. According to the technical scheme, the movable impact type large pin shaft replacement device comprises an impact device body, a fine adjustment mechanism, an adjustment mechanism and a movable supporting assembly. The impact device body comprises an impact drill rod and an impact moving mechanism, and the impact moving mechanism can provide circulating reciprocating power for the impact drill rod. The fine adjustment mechanism comprises a pulley making contact with the bottom of the impact drill rod, and the pulley is connected with the impact moving mechanism through a connecting support. The adjustment mechanism is located below the impact drill rod and comprises a lead screw rotationally connected with the impact moving mechanism, and the lead screw is provided with a manual pull rod. The movable supporting assembly is used for supporting the impact device body and installed at the bottom of the impact moving mechanism. The safety of maintenance operation can be improved, the working efficiency is improved, and the resource utilization rate is increased.

The invention discloses a photoelectric material and device impulse voltage testing device and method. The photoelectric material and device impulse voltage testing device comprises a charging assembly, an adjusting output assembly, a monitoring assembly and a to-be-tested carrier. The charging assembly is connected with the adjusting output assembly, the adjusting output assembly is connected with a to-be-detected carrier, the monitoring assembly is connected with the to-be-detected carrier, and the to-be-detected assembly is used for monitoring the voltage condition at the two ends of the to-be-detected carrier; the charging assembly is used for being connected with an external power source and conducting energy charging. The charging assembly comprises a control panel, a controller, a charging power source and an energy storage capacitor. The charging power supply is connected with the energy storage capacitor, and the control panel is connected with the controller. According to the invention, the standard waveform of the to-be-tested carrier can be rapidly obtained, adjustment can be rapidly and conveniently carried out, the impact efficiency of the photoelectric materials and devices is improved, the device can be matched with the output waveform requirements of various types of photoelectric materials and devices, adjustment is carried out according to different to-be-tested carrier materials, and the test efficiency is improved. The operation difficulty is greatly reduced, and the working efficiency is improved.

A screening device for petroleum contaminated soil treatment belongs to the technical field of contaminated soil treatment and comprises a limiting frame, a screening mechanism is mounted in the limiting frame and comprises a base, a mesh screen, a plurality of mounting plates and a plurality of first connecting rods, and the mounting plates and the first connecting rods form a rotating frame. The rotating frame is connected to the outer surface of the mesh screen in a sleeving mode, a plurality of screen holes are evenly distributed in the mesh screen, a rotating ring is rotationally connected to the base, the rotating frame is rotationally connected with the base through the rotating ring, and through arrangement of the screening mechanism, an impact block is arranged on the screening mechanism, and a first driving motor is used for controlling a first rotating rod to rotate; the first rotating rod is driven to rotate to drive an impact block fixedly connected to the first rotating rod in a sleeving mode to shake, in the shaking process of the impact block, the inner side wall of the mesh screen can be knocked, an acting force opposite to the screening direction is provided for the mesh screen, and therefore the permeability of the mesh screen in the screening process can be improved, and certain progressive significance is achieved.