33results about How to "Achieve collision" patented technology

The invention belongs to the field of chemical engineering and relates to a preparation method of a spinel type material, in particular to a method for preparing a spinel-type complex oxide through co-precipitation, homogenization and spray drying. According to the method, a mixed solution of two metallic nitrates and an alkaline solution are combined and added to a precipitation tank for a reaction, an obtained material is washed by deionized water, filtered, subjected to beating and refined by a homogenizer and then is sent to a spray drying machine, the dried material is subjected to calcination, and the spinel-type complex oxide powder is obtained. The method has the advantages of low calcination temperature, short time and low energy consumption, and a product has low loss, high purity and small particle size.

The invention provides a pulper low in power consumption and noise. The pulper mainly comprises a cylinder wall, a motor, a reducer, a seal device, a spindle, a spiral blade rotor, upper vortex board grooves, lower vortex board grooves and vortex boards. The pulper is characterized in the motor provides power, and the power is transmitted to the spiral blade rotor sequentially through the reducer and the spindle. By the inner and outer crescent arc transitions of the upper and lower vortex board grooves and the crescent cylindrical four-side arc structures at the inner edges of the vortex boards, flows can stably generate four vortexes at the four-side arcs of the vortex boards, vortex kinetic energy pulping is achieved, and low power consumption is achieved. Due to the fact that the hollow holes in two sides of the upper and lower vortex board groove retaining plates and in the middle portions of the vortex boards can be filled with damping and sound absorbing materials, fluid exciting force and solid noises can be absorbed, and low noise is achieved.

The invention provides a pulping device repulping based on a rotating lifting type rotor. The device mainly comprises an electromagnetic lifting device, a rotating mixing device, a buffer device, and a slurry generating device. The device is characterized in that the rotor is reciprocating and lifts while rotating, stirring, crushing, and decomposing to pulp. Through the electromagnetic lifting device, a lifting function of the rotating mixing device is realized, through a thread shaft, a rotating function of the rotating mixing device is realized, through the rotating mixing device, high-efficiency stirring, crushing, and decomposing of crushed aggregates are realized, and through the buffer device, buffer protection of the rotating mixing device is realized, and through filter holes on a filter plate, homogeneous control of decomposed crushed aggregates is realized.

The invention discloses a method and an apparatus for measuring dynamic thermal stability of solid particles. The method, while heating the solid particles, enables the solid particles to move so as to realize mutual friction and collision among the solid particles. The apparatus comprises an actuating mechanism, a motion mechanism and a heating mechanism for heating the solid particles, wherein the solid particles are put into a rotating cylinder used as the motion mechanism, and the rotating cylinder is driven by the actuating mechanism to rotate. According to the invention, dynamic thermal stability of coal, semi-coke, activated carbon, coke, briquette and other solid particle samples can be stimulated under conditions of different temperature, heating ways, heating rates, environment atmospheres and rotating speeds of the rotating cylinder, that is, crushing and pulverization of the solid particle samples subjected to thermal stress, mechanical wear and particle collision in the rotating cylinder can be obtained through tests, thereby truly reflecting a crushing and pulverization degree of the solid particles during a practical industrial utilization process, and thus building a determination standard which is about dynamic thermal stability of the solid particles and is relatively close to the reality.

The invention relates to the technical field of aquaculture proportioning, in particular to uniform feeding type proportioning equipment for aquaculture. A plurality of discharging cylinders are uniformly arranged on the top of a mixing cylinder in the circumferential direction and used for storing different kinds of raw materials; since first-level discharge ports of a discharge tray correspond to the outlets of the discharge cylinders, under the action of a servo motor, the discharge tray rotates along with a rotating shaft, and therefore the first-level discharge ports are overlapped with or staggered with the outlets of the discharge cylinders to achieve uniform and intermittent discharge of the raw materials; meanwhile, the rotating shaft drives a spiral auger to mix the raw materialsfalling into the mixing cylinder to complete preliminary mixing; raw material particles discharged by the mixing cylinder fall into a mixing basket; meanwhile, under the action of a clamping rod anda clamping groove, the rotation force of the rotating shaft is utilized to drive a turntable to rotate, a protrusive block is correspondingly driven to rotate, and therefore the mixing basket is shaken periodically; during shaking of the mixing basket, the raw materials are further mixed on the one hand and moved on the other hand; the raw materials fall from a third-level discharge port and thenfall from a fourth discharge port, and correspondingly the turntable rotates.

The invention discloses an air-flow vortex balling machine for producing spherical graphite, which consists of a machine body, a balling drive device and an internal classification machine drive device, wherein an internal classification machine, a powder balling module and a cooling system are arranged in the machine body. In the invention, an internal balling module and a classification module are rationally arranged, and thus, the air-flow vortex balling machine for producing the spherical graphite is provided. The air-flow vortex balling machine can ensure that the graphite powder undergoes the physical processes of thinning, shearing, collision, friction, coiling, uniting and densification in an air-flow vortex balling room or can realize the combination of a physical balling process and a mechanical powder thinning process to prepare the spherical product. The indexes, such as sphericity, grain fineness distribution, tap density, apparent density, actual density and special surface area, of the spherical graphite powder can be controlled in the range of pre-determined values; the quality is stable; the yield can be improved by over three times; and over 50 percent of energy consumption can be reduced.

The invention discloses a backflow elastic striking type self-cleaning flue gas heat exchange tube, and belongs to the field of heat exchange tubes. According to the heat exchange tube, flue gas passes through the space between a heat exchange tube body and a backflow inner tube, so that the flue gas flows in an annular mode, on one hand, the heat exchange area between the flue gas and an external medium is enlarged through the heat exchange tube body, and the heat exchange efficiency is greatly improved; and on the other hand, before flue gas flows out of the heat exchange tube body, part of the flue gas is guided into the backflow inner tube through a backflow introducer, the flue gas gradually flows back along the backflow inner tube, and finally the flue gas is guided into the heat exchange tube body again by a double-cone extractor and is converged with the introduced flue gas, so that the flue gas is jointly guided by the double-cone extractor and the backflow introducer, part of flue gas continuously flows back in the space between the heat exchange tube body and the backflow inner tube, a magnetic ball is driven to do loop movement, the inner wall of the heat exchange tube body is continuously impacted, cleaning of the inner wall of the heat exchange tube body is achieved, and the influence of impurity accumulation on the heat exchange effect of the heat exchange tube body is effectively reduced.

The invention relates to the field of quartz sand processing, in particular to a high-purity quartz sand processing crushing and screening all-in-one machine which comprises a processing cylinder and a feeding cylinder. The rotor is installed in the processing cylinder and located under the feeding cylinder, the screening cylinder is fixedly connected with the lower end of the rotor, and the discharging groove plate is rotationally connected to the edge of the lower end of the screening cylinder in a sleeving mode and fixedly connected with the inner wall of the processing cylinder. The blanking groove plate is provided with an annular plate with an annular groove, and a scraping plate is embedded in the annular groove. Through the arrangement of the rotor, the impact plate, the conical cylindrical screen drum, the annular blanking groove plate and the scraper, quartz sand particles are thrown to the impact plate through high-speed rotation of the rotor to be impacted and crushed, and the crushed quartz sand particles are screened through the screen drum; intercepted large particles are borne by the blanking groove plate and are centrifugally discharged through the scraping plate rotating along with the screen drum, so that centralized treatment of crushing and screening is realized, raw materials do not need to be transferred among different devices, and the processing flow is simplified.

The invention relates to the technical field of circuit board test equipment, and discloses a flying probe tester test shaft automatic avoidance method. The front surface of a flying probe tester is provided with probes Tip 1 and Tip 2 and the reverse surface is provided with probes Tip 3 and Tip 4. According to the automatic avoidance method, firstly points to be tested are allocated to the four probes Tip 1, Tip 2, Tip 3 and Tip 4 and the current mechanical coordinates of each probe are acquired; the mechanical coordinates of each probe are transformed into absolute coordinates, wherein the probes Tip 1 and Tip 2 are based on the probe Tip 1 in the transformation process, and the probes Tip 3 and Tip 4 are based on the probe Tip 3; avoidance is judged through the position relation of the world coordinates of the current measurement points corresponding to the two probes of the same side and the points to be tested, and one of the probes is moved to the avoidance position if avoidance is required; and if avoidance is not required, the world coordinates of the points to be tested are directly transformed into the mechanical coordinates based on themselves and the corresponding probes are moved to the positions of the mechanical coordinates. The method is simple, reliable and easy to implement.

The invention relates to an agricultural machine transverse transmission rod limiting support welding device and a welding positioning device thereof. The agricultural machine transverse transmissionrod limiting support welding positioning device comprises a machine frame, a shaft part positioning seat is arranged on the machine frame, and a shaft part positioning structure is arranged on the shaft part positioning seat; an arc part positioning seat is further arranged on the machine frame, and a positioning piece and a stop positioning structure are arranged on the arc part positioning seat;and the welding positioning device further comprises a pressure contact driving mechanism, a shaft part feeding mechanism and an arc part feeding mechanism, wherein the shaft part feeding mechanism and the arc part feeding mechanism are arranged on the machine frame, and an in-place controller is arranged on the arc part feeding mechanism. The shaft part and the arc part are accurately conveyed to the shaft part positioning seat and the arc part positioning seat correspondingly, the shaft part positioning structure is used for positioning the shaft part, a positioning pin and the positioningpiece are used for positioning the arc part, the pressure contact driving mechanism applies acting force on the shaft part and/or the arc part to enable the shaft part and the arc part to be close toeach other, and finally, the arc part and the shaft part are welded through a welding mechanism. In this way, the positioning precision of the shaft part and the arc part is greatly improved, and thewelding efficiency is also improved.

The invention provides an axle box hoisting tool, which belongs to the technical field of tools. The axle box hoisting tool comprises a connecting rod, a sleeve, a fixing assembly and a hoisting ring,the sleeve is arranged at the front end of the connecting rod and is used for sleeving a convex block on an axle box, the fixing assembly is telescopically arranged at the rear end of the connectingrod in the axial direction of the connecting rod and is used for being matched with the sleeve to clamp the axle box, and the hoisting ring is arranged at the top of the connecting rod and is used forbeing connected to a lifting hook of a crown block in a hung mode. According to the axle box hoisting tool, in the axle box hoisting process, the axle box is hoisted through the hoisting ring, so that the hoisting hook of the crown block does not make direct contact with the axle box, and abrasion of the outer surface of the axle box is reduced; and the axle box is fixed and clamped through the fixing assembly and the sleeve, so that the hoisting stability of the axle box is improved, the axle box is prevented from shaking in the hoisting process, the occurrence of the falling safety accidents are effectively reduced, collision of the axle box to a bearing inner ring is also reduced, the normal production takt is guaranteed, and the production efficiency is improved.

The invention relates to the technical field of oil tank truck equipment, in particular to equipment special for anti-collision protection of an oil tank truck. The equipment comprises a mounting plate; a lifting device is fixedly mounted on the end wall of one side, far away from the ground, of the mounting plate; the lifting device is used for lifting protection of a protection cylinder, and collision can be detected by utilizing a collision detection device; the lifting device can be used for driving the oil tank to quickly lift, so that collision of the oil tank is avoided; the oil tank can be damped when the oil tank truck is overturned, and the oil tank can be protected by inert protective gas to prevent deformation of the oil tank; the oil outlet and the oil inlet can be sealed when the oil tank truck is overturned, so that safety accidents caused by oil leakage are prevented; the safety of the oil tank truck in the oil transportation process is improved, and the occurrence frequency of safety accidents is reduced.

The invention provides a water drip collision automatic photo taking device, which comprises a camera, an electromagnetic valve triggering switch, an electromagnetic valve controller, a water storage component, a water dripping component, a clamping component and a fixing table, wherein the camera is connected with the electromagnetic valve controller through a conducting wire, the electromagnetic valve triggering switch is arranged on the conducting wire arranged between the camera and the electromagnetic valve controller, the fixing table comprises a platform and support rods, the support rods are vertically arranged at the two sides of the platform, the water storage component is arranged at the upper part of the support rods and is connected with the water dripping component through a connecting pipe, the clamping component is arranged on the support rod, the water dripping component is fixedly arranged on the clamping component and is connected with the electromagnetic valve controller through a conducting wire, and the fixing component is positioned right in front of a camera lens. The water drip collision automatic photo taking device has the advantage of simple and ingenious structure and has the beneficial effects that an electromagnetic valve and the camera are controlled through the electromagnetic valve controller, and the automatic shooting of collision effects of several water drips with different colors in various types can be realized.

The invention discloses a three-dimensional braiding machine discretization core mold system based on a variable-curvature special-shaped revolving body, which comprises a core mold assembly unit, a core mold lifting unit and a PLC, wherein the core mold assembly unit is connected with the core mold lifting unit, and the PLC is connected with the core mold assembly unit and the core mold lifting unit; the core mold assembly unit comprises a discretization core mold layer unit, a core mold interlayer locking mechanism and a core mold layer unit ascending mechanism, wherein the discretization core mold layer unit is composed of variable-curvature core mold layer slices, and the discretization core mold layer unit is arranged on the core mold layer unit ascending mechanism; and the core mold layer unit ascending mechanism and the core mold interlayer locking mechanism are fixedly connected with the core mold ascending unit. According to the three-dimensional braiding machine discretization core mold system based on the variable-curvature special-shaped revolving body, interference between the core mold and a yarn is avoided, and three-dimensional braiding of a variable-curvature special-shaped revolving body with cloth fell height being constant is guaranteed.

The invention discloses a grading device for traditional chinese medicinal material chipping recycling. The device comprises a bracket, a feeding hopper, a feeding box, an auxiliary grading device, adispersing device, a grading bin, a lifting frame and rubber blocks. According to the device, the auxiliary grading device is arranged at the left end of the top of the feeding box, and when materialsenter the auxiliary grading device, a reciprocating collision mechanism arranged inside is driven by a motor, then a rotating piece moves through gear transmission to drive a push rod to enable an impact head to impact the falling materials to scatter the agglomerated and caked materials, the manual operation is reduced, and the working efficiency is improved; and the dispersing device is arranged at the top of the lifting frame, an independent motor is arranged in the dispersing device, the motor controls a transmission mechanism to move, and then a reciprocating jacking mechanism can jack up a jacking block at the top in a reciprocating mode, so that the collision to the left end of the bottom of the feeding hopper is achieved, the materials passing through the feeding hopper can be conveniently dispersed, and the materials are effectively and uniformly fed into the grading bin to be treated.