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

The invention relates to a high-efficient ultrasonic impact head for removing welding stress. The impact head comprises an impact head body and impact pins movably assembled in impact pinholes of the impact head body; two impact pins are symmetrically distributed on two side of a central axis, take the central axis as criteria and incline inwards to form an oblique angle alpha of between 2 and 5 degrees; each impact pin is of a cylindrical ball head shape; the diameter of each impact pin is between 5 and 8 mm; the length of each impact pin is between 30 and 35 mm; after each impact pin is arranged in the impact pin body, the length of the exposed part is required between 15 and 20 mm; and the lower part of the impact pin body is connected with an impact gun through screw thread. The impact head adopts two symmetric impact pins to simultaneously treat welding toes of two side of a weld joint, can remarkably improve the impact efficiency by 20 to 50 percent compared with a multi-pin impact head, improve the degree of the impact force, the impact strength, the removal of welding stress and the improvement of fatigue strength by more than 5 to 10 percent compared with the multi-pin impact head, has good impact effect, greatly improve the impact efficiency and stability in the treatment of a long aluminum alloy welding joint and has good economic benefit.

The invention relates to a crushing device for coal gangue separation. The crushing device comprises an outer cover, a material separating device, a plurality of guide plates, a material throwing tray and a bracket, wherein the outer cover is fixed on the bracket; a feeding hole is formed in the top of the outer cover; the bottom of the outer cover is provided with a discharge hole; a vortex bin is arranged in the middle of the outer cover; the material separating device is arranged in the feeding hole and the vortex bin; the upper part of the material separating device has an umbrella-shaped structure; a feed opening is formed in the top of the material separating device; a coal gangue storage bin is arranged in the middle of the material separating device; the material throwing tray is arranged under the material separating device; the plurality of guide plates are respectively arranged under the umbrella-shaped structure of the material separating device and fixed on the outer cover. The crushing device can be used for selectively crushing coal components in the coal gangue while maintaining the integrity of the gangue component, thus meeting the requirement of separation.

The invention relates to the technical field of industrial equipment, and discloses a ball mill for grinding a soft magnetic core. The ball mill comprises a fixing box, a rotating cylinder, a lining,grinding steel balls, an outer gear and a key, wherein the lining is fixedly arranged on the inner wall of the rotating cylinder, the outer gear is fixedly arranged at the bottom of the rotating cylinder in a sleeving mode, the grinding steel balls are movably arranged inside the lining, a bottom support seat is fixedly arranged on the fixing box, and a large thrust bearing is fixedly arranged inside the bottom support seat. Due to the arrangement of the rotating cylinder and a partitioning device, the space inside the rotating cylinder is equally divided, the effective grinding space is further compressed, the impact efficiency between the grinding steel balls and a material is improved, the grinding effect in the area is improved, and the grinding efficiency is improved; and the rotatingcylinder and the partitioning device are rotated in different directions, so that the movement track and the movement speed of the grinding steel balls are increased, the impact times among the grinding steel balls and between the grinding steel balls and the material are increased, and the grinding effect on the material is further improved.

The invention discloses a compression resistance detection device for automobile part production and processing. The device comprises a mounting rack, u-shaped plates, metering lines, rotary drums, L-shaped guide rods, guide columns, placement seats, striking hammers, adjusting plates, limiting grooves, electric push rods, telescopic columns, fixed pulleys, pull ropes, first stepping motors, winding wheels, driven bevel gears, electromagnets, clamping plates, driving bevel gears, mounting frames, small worms, large worms, second stepping motors, shaft rods, driving gears, sliding rods, U-shaped guide rods and driven gears. According to the device, spare and accessory parts can be better clamped; the position deviation of spare and accessory parts during impact is avoided; the striking hammers can strike the spare and accessory parts more sufficiently, the striking efficiency is greatly improved, different striking forces are better applied to the spare and accessory parts for strikingdetection, the detection efficiency is greatly improved, the detection result is also greatly improved, and meanwhile, the practicability is also enhanced.

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 relates to a crushing device for coal gangue separation. The crushing device comprises an outer cover, a material separating device, a plurality of guide plates, a material throwing tray and a bracket, wherein the outer cover is fixed on the bracket; a feeding hole is formed in the top of the outer cover; the bottom of the outer cover is provided with a discharge hole; a vortex bin is arranged in the middle of the outer cover; the material separating device is arranged in the feeding hole and the vortex bin; the upper part of the material separating device has an umbrella-shaped structure; a feed opening is formed in the top of the material separating device; a coal gangue storage bin is arranged in the middle of the material separating device; the material throwing tray is arranged under the material separating device; the plurality of guide plates are respectively arranged under the umbrella-shaped structure of the material separating device and fixed on the outer cover. The crushing device can be used for selectively crushing coal components in the coal gangue while maintaining the integrity of the gangue component, thus meeting the requirement of separation.

The invention discloses a stress-relieving device for seamless rails by using a vibration method and a stress-relieving method, and is implemented by carrying out field detection on the stress-relieving effect of rails mainly by using a device for realizing the stress homogenization of rails in a periodic-vibration gas-liquid pressurized mode and supplementarily by using a stress sensor, and then carrying out stress-relieving operation in a machine-liquid-electricity integrated automatic mode. The whole stress-relieving device disclosed by the invention is light in weight, and provided with an anti-overturn device for ensuring a trolley is not overturned to the side during the operation of the trolley, thereby reducing the labor intensity and improving the operating efficiency and quality.

The invention relates to thermal shock chambers, in particular to a thermal shock chamber with sealing belts and aims to solve the problems of proneness to collision or displacement of samples, poor airtightness, poor shock effects, low control precision and the like in a shock process in the prior art. The outer surfaces of four side walls of a sample case, the inner and outer sides of the sealing belts, the outer surfaces of two heat storage tanks and two cold storage tanks and the lateral sides of four rotating shafts are provided with a plurality of projections and grooves in alternate array, and consequently excellent sealing effects are achieved. After photoelectric receivers receive optical signals, a controller controls a motor to stop, and refrigeration or heating is started in order to realize thermal shock. The thermal shock chamber with the sealing belts has the advantages that the samples are less prone to displacement, adverse factors such as collision, displacement and the like are avoided, accuracy in control is achieved due to adoption of the controller, low cost, structural simplicity, convenience in operation, high shock efficiency and effectiveness in sealing are realized, and service life of the thermal shock chamber is greatly prolonged. Furthermore, the thermal shock chamber is applicable to thermal shock test of devices.

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 demolding process, in particular to a demolding machine for a sanitary product and a demolding process using the demolding machine, which solves the problem that the manualdemolding method is liable to causes product damage, and the main points of the technical solution are as follows: The demolding machine comprises a demolding frame which cooperates with the fixing frame, wherein the demolding frame is provided with a positioning sinking groove for inserting the fixing frame, and driving parts are arranged on both sides of the positioning sinking groove; the driving part comprises a driving cylinder vertically fixed on the demolding frame, a link mechanism for connecting the driving cylinder and the fixing frame, and a sling for connecting the link mechanism and the fixing frame; when a cylinder shaft of the driving cylinder is extended, a rod mechanism causes the fixing frame to rotate about the side of the positioning sinking groove close to the drivingcylinder to be tilted relative to the positioning sinking groove; when the cylinder shaft of the driving cylinder contracts, the link mechanism causes the side of the fixing frame separated from the positioning sinking groove to collide with the positioning sinking groove. A mold core is collided by using the demolding machine instead of manually, so that the colliding force is controlled.

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 relates to the field of mining machinery, in particular to a reciprocating impact oblique tooth discharging shovel of a reciprocating impact mining machine. The reciprocating impact oblique tooth discharging shovel of the reciprocating impact mining machine comprises a reciprocating impact box and a reciprocating impact oblique tooth discharging shovel body. The reciprocating impactbox comprises a reciprocating impact box body, a reciprocating impact power part and a reciprocating impact guiding part, the reciprocating impact guiding part is disposed in the reciprocating impactbox body, the reciprocating impact power part is supported by the reciprocating impact box body to drive the reciprocating impact guiding part, and one end or both ends of the reciprocating impact guiding part extend out of the reciprocating impact box body. The reciprocating impact oblique tooth discharging shovel body comprises a main tooth seat, a main punching tooth, a side discharging tooth wing plate and side discharging oblique teeth, and the main tooth seat is arranged on the end part of the reciprocating impact guiding part extending out of the reciprocating impact box body, the mainpunching tooth is arranged at the top end of the main tooth seat, the thickness of the side discharging tooth wing plate is smaller than that of the main tooth seat to reduce the height of the discharging surface of the reciprocating impact oblique tooth discharging shovel body, the side discharging oblique teeth are staggered or symmetrically arranged or arranged front and back on the side discharging tooth wing plate, and the tooth top ends of the side discharge oblique teeth protrude from the side plane of the side discharging tooth wing plate. Impacted sweeping materials are enabled to conveniently flow out from the gap, higher than the side discharging tooth wing plate, of the side discharging oblique teeth, and the resistance of the materials to the reciprocating impact oblique toothdischarging shovel is reduced.

The invention discloses an impinging stream reactor, which comprises a reactor housing, a reaction impinging tank, and a liquid transfer pump. The reaction impinging tank is arranged in the reactor housing, the impinging tank is openmouthed, the guide cylinders are symmetrically arranged in the impinging tank, the guide cylinder is passed through a liquid feed line of the reactor housing and is connected to the liquid transfer pump, an air intake is arranged on a top cover of the reactor housing, a lower cover is a liquid holding tank with a taper structure, and an extraction port is arranged on the holding tank. In the impinging stream reactor, an oil phase extraction port, a water phase extraction port and a circulation solution extraction port are arranged on the holding tank, and are respectively arranged at an oil phase zone of the holding tank, a water phase zone and a tone top position of the holding tank. The temperature and pressure in the impinging stream reactor is easy to be controlled, the shocking of the reactor due to impinging reaction is reduced, and the impinging stream reactor is suitable for oil product oxidation desulphurization reaction.

The invention relates to a robot equal material manufacturing and multi-head ultrasonic peening device and method. In order to conform to a manufacturing pattern based on addition in recent years, theequal material ultrasonic peening device and an installation method thereof in additive equal and subtractive material integrated compound manufacturing conducted on a thin-wall part with a complex shape are provided. By combining ultrasonic peening and additive and subtractive material manufacturing, welding residual stress can be eliminated, surface nanocrystallines are obtained, and damaged part repair is achieved, and the internal structure is changed to achieve performance optimization. The device is connected with an industrial robot tail end arm, a robot hand is controlled through programming to run according to a preconceived track, and meanwhile, through an ultrasonic peening gun, the different side surfaces of a part after material addition are peened simultaneously, so that a hammer forging peening equal mateirla shape controlling technology process of the top surface and the bilateral side surfaces of the thin-wall wall part is completed at once. The device and the methodare simple, convenient and lower in cost, for a processed component, residual stress can be eliminated, and surface crystalline grains can be refined.

The invention provides a multipurpose water pulse device used in a well. The multipurpose water pulse device used in the well at least comprises a head portion and a tail portion, wherein the head portion at least comprises a shell, a flange disc and a short pipe, a through hole A is formed in the shell, an elastic sleeve is arranged at the position of the through hole A, the elastic sleeve is installed on the outer wall of the shell through a clamp, the flange disc is located on the bottom of the interior of the shell, the short pipe is installed in the shell, the tail portion at least comprises an outer cover and a connecting piece, the outer cover is cylindrical, the connecting piece is fixed to the top of the outer cover, an inner pipe is arranged in the outer cover and in the connecting piece, and the outer cover and the connecting piece are arranged on the inner pipe in a sleeved mode and can slide on the inner pipe. Compared with the prior art, the multipurpose water pulse device used in the well has the advantages that water impact and water pulse can be generated to have effect on a filter pipe column and a producing zone, and then siltation is damaged; meanwhile, connecting strength of the siltation is reduced by a treating agent sent into the well, and therefore impacting efficiency is improved.