62 results about "Grain crushing" patented technology

The present invention relates to the technical field of corn threshing, and in particular to a corn harvester threshing device capable of reducing the seed breakage rate. It comprises a mounting frame, etc.; the mounting frame is connected to an external feeding device, and the feeding device has a discharge port. The present invention threshes the corn kernels by cutting the corn kernels with a cutting rope, and the stalk of the corn kernels can be separated from the main body during cutting, so that the corn kernels after threshing do not contain the stalk part, thereby solving the problem that the corn kernels with stalks affect the taste when eaten. At the same time, it avoids the problem of high seed breakage rate caused by traditional threshing methods such as impact or rubbing; and when performing the threshing operation, the electric push rod 1 drives the connecting block 1 and the cutting rope to move back and forth through the electric push rod 2, so that the cutting rope cuts the corn kernels in a mobile cutting manner, accelerates the threshing speed, and effectively avoids the corn kernels squeezing the cutting rope, resulting in the situation that the cutting rope is affected.

The application discloses a processing method of low-cost high-performance tantalum alloy plate, which comprises the following steps: using a firm electrode obtained by uniformly mixing Ta powder, W powder and Nb powder and then welding as raw material, carrying out twice electron beam melting to obtain a large-size tantalum alloy ingot; through primary extrusion on the large-size ingot, repeated operations of turnover forging and shaping and secondary extrusion, a three-time extruded rod blank is obtained; finally, the extruded rod blank is subjected to blanking, intermediate annealing, cross-rolling and product annealing, and the preparation of the tantalum alloy plate is completed. The application uses Nb to replace part of the Ta matrix to prepare a new type of tantalum alloy, and the raw material cost can be reduced by about 1 / 4. Then, through multiple turnover forging and extrusion, cross-extrusion of the ingot is realized, the advantages of shear deformation and dislocation interlacing on grain crushing are fully utilized, the grain size of the prepared plate is above 8.0, and the mechanical properties are better than those of a traditional Ta2.5W alloy, so that the plate can be used as a preferred material for weapon equipment structural parts.

The utility model relates to grain crushing equipment technical field, concretely relates to a kind of intermittent grain grinder, including support, the middle part of support is fixed with box, the bottom of box keeps communication with crushing assembly, and interval discharging device is provided in box, interval discharging device includes discharge port, driving motor and release plate set in discharge port, the middle part of discharge port is provided with discharge port, the middle part of release plate is connected with connecting shaft and is set, the middle part of release plate is fixed with the spacer of L type, the output end of driving motor is fixedly connected with arc plate, exposed hole and connecting ring contact, so grain can be passed down from bottom, into crushing assembly, complete the function of intermittent crushing, intermittent feeding mechanism can accurately control material input and crushing rhythm, avoid equipment blockage due to too much material in short time, ensure that the crushing process is smooth and efficient, compared with traditional continuous type grinder, crushing efficiency can be improved by more than 30%.

The utility model relates to the technical field of silage maize harvesters, in particular to a crushing device gap adjusting system and a silage maize harvesters, the system comprises a hydraulic oil tank, an oil supplementing pump, an adjusting valve, a driving device, a plurality of adjusting oil cylinders, a first crushing roller device and a second crushing roller device, the adjusting valve comprises a valve sleeve and a valve rod, and a plurality of containing cavities are formed in the valve sleeve; the valve rod is installed on the valve sleeve, and the driving device can drive the valve rod to move in the multiple containing cavities at the same time. An oil inlet and a plurality of oil outlets are formed in the valve sleeve, the oil inlet communicates with the containing cavities, and the oil outlets correspond to the containing cavities one to one; oil inlets of the oil tank, the oil supplementing pump and the adjusting valve are communicated through pipelines; oil inlets of the plurality of adjusting oil cylinders are in one-to-one correspondence with the plurality of oil outlets and are communicated with the plurality of oil outlets through pipelines; a piston rod of the adjusting oil cylinder is used for driving the first crushing roller device to move relative to the second crushing roller device so as to change a gap therebetween. The system can be used for adjusting the gap of the grain crushing device.

The invention discloses a threshing device, a threshing method and a control system.The threshing device comprises a rack, a screen drum unit and a roller unit, the screen drum unit is connected with the rack, screen holes are formed in the screen drum unit, threshed grains are discharged out of the screen drum unit through the screen holes, the roller unit is connected with the rack, and the roller unit penetrates into the screen drum unit; the roller unit comprises a threshing roller and a plurality of threshing modules, the threshing modules are connected with the threshing roller, the threshing modules are arranged in the circumferential direction of the threshing roller at intervals, and the extension size of at least part of the threshing modules in the radial direction of the threshing roller is adjustable. And at least part of the threshing module with the adjustable extension size in the radial direction of the threshing cylinder can extend out of or retract into the threshing cylinder. According to the threshing device, the spacing distance between the threshing component and the sieve plate can be adjusted, the risk that grains are broken and blocked is reduced, and the quality and stability of continuous operation are improved.

1. Name of the designed product: grain grinder. 2. Use of the designed product: used for grinding, milling grains, beans and other food. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The utility model discloses a multistage grain crushing mechanism which comprises a crushing bin, the front face of the crushing bin is fixedly connected with a feeding pipe, one end of the feeding pipe penetrates through and extends to the inner side of the crushing bin, the lower end of the crushing bin is conical, and a discharging hole is formed in the conical end of the crushing bin; a crushing part for crushing grains is arranged on the crushing bin; the smashing part comprises a supporting bin fixedly connected to the inner wall of the smashing bin, the discharging end of the feeding pipe penetrates through and extends into the supporting bin, and the inner wall of the supporting bin is rotationally connected with a first rotating shaft and a second rotating shaft correspondingly. According to the utility model, the top crushing roller and the bottom crushing roller which are supported by a group of the first rotating shaft and the second rotating shaft in the supporting bin are used for performing multi-stage crushing on grains guided into the supporting bin, and meanwhile, the crushed grains can be rotationally screened by matching the rotating ring with the screen and the material guide frame; and the screened grains can be sent back into the supporting bin again to be smashed again, so that the grain smashing effect and smashing efficiency are improved.

The invention discloses a Daqu fragrant multi-grain crushing short-time grain moistening micro-cooking fermented grain adding fermentation brewing process, and belongs to the technical field of white spirit brewing. According to the process, through multi-grain proportioning, two-time short-time high-temperature grain moistening, low-pressure micro-cooking and saccharification fermented grain adding for regulating and controlling fermentation, the problems of grain fragrance loss, high energy consumption, poor southern environment adaptability and the like caused by traditional single-grain long-time grain moistening and cooking are solved. Experimental data show that compared with a traditional process, the process has the advantages that the wine rate is increased by 8.5-18.8%, the ethyl acetate content is increased by 12-45%, and fusel oil is reduced by 10-40%. The raw liquor has the characteristics of strong grain fragrance, mellow, sweet and soft taste and harmonious ester fragrance, the comprehensive effects of ester extraction, impurity reduction, aroma enhancement, quality improvement, energy conservation and consumption reduction are achieved, and the method is suitable for high-quality production of the Daqu fen-flavor liquor.

The utility model relates to the field of harvesting machinery, and discloses a combined concave grid and a harvesting machine.The combined concave grid comprises a round steel concave grid body and a punching concave grid body which are connected front and back in the axial direction, and the round steel concave grid body comprises a plurality of round steel bars which are sequentially arranged at intervals in the circumferential direction; the punched concave grid includes a panel extending in a circumferential direction and a plurality of punched holes formed in the panel. The combined concave grid has the advantages that the threshing separation rate is high, the grain breakage rate is low, good balance can be achieved between the separation rate and the breakage rate, threshing performance is optimized, threshing loss is reduced, user requirements are better met, adaptability and universality are high, and the like.

Starch cereal grains such as sorghum or wheat, corn, rice, millet, highland barley, buckwheat and the like are used as raw materials, reinforced low-temperature yeast is used as a leavening agent, an underground microporous earthenware brick pit is used as a fermentation container, and the fermentation container is used for fermenting the raw materials to obtain the heap-free low-temperature fermented elegant Maotai-flavor liquor. The high-quality elegant Maotai-flavor liquor is brewed by the following procedures: crushing raw grains, adding water to moisten the grains, steaming the grains for gelatinization, adding fragrant grains, blowing for cooling, adding yeast, fermenting in a pool, distilling to take liquor and the like through a continuous cropping method and a one-time clean round-round fermentation process.

The invention relates to the technical field of sand blasting equipment control, in particular to a control system and a control method of a compressed air type sand blasting machine, which are used for solving the problems that the existing system cannot sense the coupling deviation among the blasting kinetic energy, the sand-gas mass ratio and the nozzle pressure difference in real time, the surface treatment quality fluctuation is easily caused, and the sand blasting efficiency is low. The problems of nozzle overload or abrasive material crushing are possibly caused; according to the method, the sand blasting pneumatic self-correction module is fused with a sand blasting pneumatic-impact physical mechanism, a combined state space is constructed, and based on actual spraying kinetic energy, the sand-gas mass ratio and the deviation between the front-back pressure difference of the nozzle and the expected state, accurate recognition of multi-dimensional working condition abnormity is achieved; in a safe action space limited by air source stability, nozzle tolerance limit and a sand grain breaking threshold value, pneumatic parameter set values are adaptively corrected through dynamic strategy learning, and risks such as nozzle overload or abrasive material breaking are effectively avoided while it is guaranteed that the sand blasting kinetic energy and the proportion are always in the optimal interval.

The invention discloses an experimental mouse grain crushing device with a multi-cavity structure, and relates to the technical field of mouse grain processing, the experimental mouse grain crushing device comprises a pre-crushing bin, a conveying bin and a crushing bin, the conveying bin is fixedly connected to the bottom of the pre-crushing bin, the crushing bin is fixedly connected to the bottom of the conveying bin, and two pre-crushing rollers are rotatably connected to the interior of the pre-crushing bin; the back face of the pre-crushing bin is fixedly connected with a first motor, an output shaft of the first motor is fixedly connected with the rear end of one of the pre-crushing rollers, the anti-blocking mechanism is arranged in the pre-crushing bin, and the anti-blocking mechanism comprises two transverse supporting beams fixedly connected to the two sides of the bottom end in the pre-crushing bin; and a vertical frame is fixedly connected to the bottom end of the interior of the pre-crushing bin, a reset spring is fixedly connected to the upper end of the vertical frame, and a connecting frame is fixedly connected to the front end of the reset spring, so that the problem that mouse food is prone to rolling when making contact with the roller surface, and mouse food pre-crushing treatment is affected is solved.

The present invention discloses a tubular reactor unit and system, which is particularly used for gas-liquid-solid multiphase reactions, accompanied by crystal particle products, and the reaction conditions involve high temperature and high pressure reactions. The reactor mainly includes a jet mixer, a tubular reactor, a gas-liquid separation buffer tank, a circulation pump, and a crystal crusher. Under the action of the circulation pump, the mother liquor circulates in the tubular reactor and the gas-liquid separation buffer tank to control the flow state and residence time. The tubular reactor is a coil-type jacketed reactor with a heat exchange function, and the jet mixer has the characteristics of multiple input ports and microbubble generation function. The crystal crusher can fully crush the crystal particles in the circulating mother liquor. The present invention adopts a combination of local single circulation and global multi-circulation, combined with microbubble generation technology, in-tube turbulence technology, and grain crushing technology, which greatly shortens the length of the traditional tubular reactor and can achieve fully enclosed, continuous, high conversion rate, and rapid production.

The utility model relates to the technical field of superfine grinders, and discloses a grain superfine grinder capable of completely refining, which comprises a superfine grinder main body and a discharge end, the discharge end is arranged on one side of the superfine grinder main body, a screening box is arranged on one side of the superfine grinder main body, the discharge end is connected into the screening box, and the discharge end is connected into the screening box. The discharging end is connected into the screening box, so that crushed grains enter the screening box, the qualified crushed grains are filtered by the filter plate and then discharged, the unqualified crushed grains are retained on the filter plate, the filter plate is driven by the servo motor to rotate, the unqualified grains are conveyed into the grinding box by the filter plate, and the crushing efficiency is improved. According to the grain crushing device, the two round rollers are arranged, unqualified grains are ground by the two round rollers for secondary crushing and then discharged after crushing, the problems that the grain granularity is not uniform, the crushing efficiency is low and the like are solved, and particularly the problem that when the grains are subjected to superfine crushing, secondary crushing is inconvenient when the crushed grains are not uniform is solved.

The invention discloses a forging method of a fine grain copper ingot, which combines different forging processes, carries out three times of upsetting forging and one time of radial precision forging on the copper ingot, controls the heating temperature and the heat preservation time, and carries out multiple times of forging at different temperatures, so that the obtained copper ingot blank has an excellent grain crushing effect; the internal structure is uniform; and grains are fine.

A method and device for monitoring the operating efficiency of a self-propelled silage harvester are disclosed. The method includes: real-time data collection from the field; continuous collection of field operation data via operating condition sensors and data acquisition devices; and real-time transmission of the monitoring data to an on-board processing terminal via an on-board communication device. The on-board processing terminal obtains the power consumption of the operating components based on the received monitoring data and filters the operating condition data. A data time lag analysis and correction model is established using a material flow sequence model of the header, feed roller, chopping roller, grain crushing roller, throwing fan, and throwing cylinder. Data anomalies are detected; missing data values ​​are filled; the correlation between various variables and operating efficiency is detected, and a univariate linear model is constructed; an operating efficiency model is constructed, establishing a data model of operating efficiency and the power of each component; the main factors affecting operating efficiency are identified, and a multiple linear regression operating efficiency detection model is established. This invention also discloses a device for monitoring the operating efficiency of a self-propelled silage harvester.

The invention discloses a preparation method of a raw material bar for a W-Nb alloy single crystal. The method comprises the following steps: 1, mixing W powder and FNb-1 powder, pressing, and carrying out vacuum high-temperature sintering to obtain a W-Nb alloy sintered bar; secondly, a W-Nb alloy cast ingot is obtained after electron beam smelting; thirdly, a W-Nb alloy extrusion bar is obtained through extrusion machining; fourthly, a W-Nb alloy electrode bar is manufactured after heating and forging; and 5, carrying out pre-purification and grain amplification by adopting an electron beam zone melting furnace to prepare the raw material bar for the W-Nb alloy single crystal. The method combining electron beam melting, extrusion and forging hot working and electron beam zone melting is provided for the first time, alloying of a material system and removal of impurity elements in the material are achieved, material grain breaking and uniform distribution of structures are promoted, deep purification is conducted again, grain inoculation and growth are promoted, subsequent growth is facilitated, and a single crystal structure is formed. The preparation process is simple, easy to implement and suitable for the fields of spaceflight, nuclear energy and the like.

The utility model belongs to the technical field of grain crushing, and particularly relates to a grain crusher for grain processing, which comprises a bottom plate, a square frame is fixedly mounted at the top of the bottom plate, an inner cavity of the square frame is connected with a barrel through a rotating component, and a crushing component for crushing grains in various modes is arranged in the inner cavity of the barrel. According to the grain smashing device, the smashing assembly is arranged, so that the effect of smashing grains in multiple modes is achieved, the grains are smashed in multiple modes, and then the grain smashing efficiency can be improved to a certain degree. And besides, by arranging the rotating assembly, the grains can be turned over in the barrel, then the grains can be comprehensively crushed, and the crushing efficiency of the grains is further improved.

The invention relates to a preparation method of a TC4 titanium alloy cold-rolled coiled strip, and belongs to the technical field of titanium alloy production. Comprising the steps that S1, raw materials prepared from chemical components including 5%-7% of Al, 3%-5% of V, smaller than or equal to 0.25% of Fe, smaller than or equal to 0.08% of C, smaller than or equal to 0.01% of H, smaller than or equal to 0.2% of O, smaller than or equal to 0.05% of N and the balance Ti and inevitable impurities are smelted and then subjected to forging cogging, plate blank coating and hot continuous rolling to form a hot-rolled coil, and a cold-rolled raw material is obtained after acid pickling; and S2, the cold-rolled raw materials are rolled twice, 4-7 passes are rolled each time, and a finished product is obtained after vacuum annealing. According to the method, a multi-pass rolling and annealing process is combined, and the TC4 titanium alloy cold-rolled coil strip which is sufficient in microcosmic grain crushing, good in structure uniformity, excellent in surface quality and capable of meeting the national standard requirement in product performance is effectively obtained. The problems of plasticity reduction, non-uniform deformation, edge cracking and surface cracks caused by direct cold rolling of the TC4 titanium alloy in the prior art are solved.

The invention discloses a steel rail modification strengthening method based on friction stir processing, which comprises the following steps: removing oxides on the surface of a steel rail through polishing, and wiping the surface of the steel rail; a proper stirring head is selected, the rotating speed, the advancing speed, the downward pressure and the dip angle parameters of the stirring head during stirring friction machining are set in a controller, and a low-heat-input technological parameter combination is selected; rotating the stirring head at a high speed and moving downwards until the downward pressure between the stirring head and the surface of the steel rail reaches a preset value; after the stirring head rotating at a high speed and the surface of the steel rail are pressed tightly, in-situ rotating friction is conducted till the set time is reached; the stirring head horizontally moves in the set advancing direction while rotating, the surface of the key weak area of the steel rail is machined, and grain crushing and structure refining are achieved; after the machining process is completed, the stirring head is pulled back upwards and leaves the surface of the steel rail. According to the steel rail modifying and strengthening method based on stirring friction machining, the technological process is simplified, and operation is convenient and fast.

The utility model discloses a grain crushing mechanism for producing potassium sulfate, which relates to the technical field of potassium sulfate fertilizer production, and comprises a grain crushing machine main body, a feed chute and a discharge chute, the feed chute is arranged at the top end of the grain crushing machine main body, the discharge chute is welded on one side of the lower end of the grain crushing machine main body, a screening structure is arranged in the feed chute, and the discharge chute is welded on the other side of the lower end of the grain crushing machine main body. The screening structure comprises a first screening plate and a second screening plate, the two sides of the first screening plate are fixed to the inner wall of the feeding groove, and a gap exists between the first screening plate and the second screening plate. According to the utility model, cakes in a potassium sulfate fertilizer can be retained on the surface of the screening plate, or the screening plate can screen larger foreign matters, and the situation that the larger foreign matters enter the crusher main body to cause equipment damage, so that the damped and caked potassium sulfate is extruded by the screening plate, and the crushing efficiency is improved can be avoided. Therefore, less potassium sulfate fertilizer is retained between the screening plates, the screened fertilizer can be shaken, and falling of the fertilizer is better facilitated.

The utility model discloses a rubbing grain crushing roller, which relates to the technical field of livestock feed processing and comprises a roller body, a support is connected inside the roller body, the outer surface of the support is connected with a rib plate, and through holes are arranged on two sides of the rib plate. A first check ring and a second check ring are connected into the support, and a first framework is arranged in the first check ring. Through the arrangement of the first check ring and the first framework, the first check ring can shield a gap between the end face of the roller body and the inner wall of a machine, so that materials are prevented from entering the machine, and the first check ring is trumpet-shaped, is made of a fluororubber material, and has good elasticity, wear resistance and aging resistance; the structure can adapt to gaps of different widths and can be suitable for high-temperature and high-rotating-speed environments, the service life of the structure is prolonged, meanwhile, the first check ring is enhanced through the first framework, and expansion, distortion and plastic deformation of the first check ring caused by rotating centrifugal force are avoided; and materials are effectively prevented from entering a gap between the roller body and the inner wall of a machine.

The invention relates to the technical field of grain smashing, and discloses a smashing device for a grain dryer, the smashing device comprises a machine body, a feeding port is formed in the upper surface of the machine body, supporting legs are fixedly connected to the surface of the machine body, a smashing mechanism is arranged in the machine body, and the smashing mechanism comprises a feeding hole; the feeding hole is formed in the inner wall of the machine body, the feeding hole is communicated with the feeding port, and an inclined runner is arranged on the inner wall of the machine body. According to the grain crushing device, the control box starts the driving motor, the driving wheel, the belt and the first driving wheel are driven to drive the transmission rod and the spiral guide blade to rotate, grain is stably conveyed to a crushing area along a flow channel through thrust generated by rotation of the spiral guide blade, and the rotating speed of the spiral guide blade can be accurately controlled by controlling the rotating speed of the driving motor; and therefore, the feeding rate of the grains is regulated and controlled, accumulation and blockage caused by too fast feeding are avoided, and the smooth crushing process is ensured.

A method of crushing and processing grain without destroying germ pouches in the grain, by: (a) crushing grain in the primary single-pass crushing machine, and then sieving the grain to sort the grain into two or more particle sizes; (b) transporting larger sized particles from the sieved grain into a secondary single-pass crushing machine; (c) crushing the larger sized particles of grain in the secondary single-pass crushing machine; (d) sieving the grain crushed in the secondary single-pass crushing machine to sort the grain into two or more particle sizes; and then (e) combining smaller sized particles sieved from the primary single-pass crushing machine with smaller sized particles sieved from the secondary single-pass crushing machine.

The utility model relates to the technical field of grain smashing devices, and provides a grain smashing device convenient to collect, which comprises a screening box, a motor is fixedly connected to the left side of the screening box, a rotating rod is fixedly connected to the output end of the motor, a second belt pulley is fixedly connected to one side of the exterior of the rotating rod, and a cam is fixedly connected to the other side of the exterior of the rotating rod. A screen is arranged at the top of the cam, a collecting box is fixedly connected to the right side of the screening box, the right side of the screen is rotatably connected to the interior of the collecting box, a fixing plate is fixedly connected to the right side of the screening box, and an auger conveying assembly is fixedly connected to the top of the fixing plate. According to the grain smashing device, the motor drives the rotating rod to rotate, meanwhile, the cam is driven to rotate to eject the screen in a reciprocating mode to screen grains with uneven granularity, meanwhile, the auger is matched to convey grains which are not smashed completely to the smashing box to be smashed for the second time, and the problems that an existing grain smashing device is low in smashing efficiency and uneven in smashing granularity are solved. And the overall quality of grains is improved.

The invention discloses a preparation method and device of filled cereal and cubilose mixed instant porridge. The device comprises a support, and a mixing box is fixedly mounted on one side of the support; the crushing mechanism is used for crushing the grains; the crushing mechanism comprises a freezing box, the freezing box is rotatably mounted in an inner cavity of the support, one side of the freezing box is fixedly connected with a high-pressure box, a first electric telescopic rod is fixedly mounted on one side of the freezing box, and two mounting rods are fixedly mounted on the outer surface of the freezing box; filled grains are subjected to high-temperature and high-pressure treatment through a high-pressure box and then discharged into an inner cavity of a freezing box, the filled grains are quickly frozen in the inner cavity of the freezing box, after freezing is completed, a push plate is pushed through the output end of a first electric telescopic rod to slowly push out blocky filled grains, a threaded rod is driven by an output shaft of a third motor to rotate, and the threaded rod drives a sliding block to slide; and when the sliding block slides, the output end of the third electric telescopic rod extends and retracts to drive the cutting blade to do reciprocating motion, so that the frozen filling grains are crushed.

The utility model discloses a double-layer squat silo, which relates to the technical field of grain storage, and comprises a foundation, and further comprises a lower silo body, an equipment overhead layer, an upper silo body and a silo top cover which are sequentially arranged on the foundation from bottom to top, ventilation ground grooves are formed in the silo bottoms of the lower silo body and the upper silo body, and silo cleaning doors are arranged on the silo walls of the lower silo body and the upper silo body. A grain distribution opening is further formed in the bin wall of the lower bin body; the equipment overhead layer comprises an overhead layer bottom plate, an overhead layer top plate and an overhead layer side wall, the overhead layer bottom plate is a lower bin body top plate, the overhead layer top plate is an upper bin body bottom plate, a first grain inlet is formed in the overhead layer bottom plate, a grain outlet is formed in the overhead layer top plate, and a second grain inlet is formed in the bin top cover. According to the double-layer squat silo, a traditional squat silo is constructed to be of a double-silo-chamber structure, on the premise that the silo capacity is not lost, the grain loading height is reduced, and therefore the phenomena of automatic grain grading and grain crushing are effectively reduced.

This invention discloses a grain crushing device with synchronous adjustment of the gap between the two rollers and dual locking of the position, belonging to the field of agricultural machinery technology. The device includes a main frame, a floating crushing roller, a fixed crushing roller, a spiral push shaft, sprockets, a chain, and a gap adjustment tool. The fixed crushing roller is fixed to the main frame, while the floating crushing roller is movably mounted on the main frame. Two spiral push shafts are respectively located on the left and right sides of the main frame, threaded into the frame, with their front ends abutting against the floating crushing roller. Two sprockets are respectively fixed to the ends of the two spiral push shafts, and the chain connects the two sprockets to achieve synchronous transmission. During gap adjustment, the spiral push shaft is rotated using the gap adjustment tool. Under the synchronous transmission of the sprockets and chain, the spiral push shafts on both sides synchronously push the floating crushing roller to move, ensuring consistent gap on both sides of the rollers. This invention also features a dual locking mechanism to ensure a minimum safe gap. This device has advantages such as convenient synchronous gap adjustment, good consistency, reliable locking, and high frame strength.

The utility model belongs to the field of grain smashing, and particularly relates to a grain smashing machine convenient to clean, which comprises a machine body, a material storage frame is fixedly connected to the top of the machine body, a material guide pipeline is fixedly connected to the top of the material storage frame, a smashing structure is arranged on the inner wall of the machine body, and the smashing structure comprises a motor. The inner wall of the machine body is fixedly connected with a motor, and the output end of the motor is fixedly connected with a cone frustum. According to the grain crusher convenient to clean, the cone frustum is driven by the motor to rotate, the synchronous shaft is driven to rotate, the synchronous shaft drives the crushing blades to rotate to crush grains, meanwhile, under rotation of the synchronous shaft, a curved block can rotate, and a rotating rod can be driven to move through rotation of the curved block; and then the movable block is driven by the rotating rod to move, so that the movable block knocks the material guide pipeline, the grains in the material guide pipeline are conveniently dredged, and the problems that the grains are blocked in the material guide pipeline and are inconvenient to clean are solved.

The application discloses a method for improving rolling efficiency of a low-carbon-equivalent 355MPa grade normalized rolled thick plate, and the method comprises the following steps: after a billet is heated by each heating section of a heating furnace, the billet surface temperature is reduced to 1000-1050 DEG C, and when the rolling rhythm is ensured and the billet surface temperature in the soaking section is in the range of 1000-1050 DEG C, the time when the billet is discharged is determined; the billet is rolled by one-stage rolling, the rolling pass number is controlled to be 2-4 passes in the cross rolling and spreading stage, the pass reduction rate is 8%-15%, and the rolling speed is controlled to be 2.0-2.2 m / s ‑1 ; the rolling pass number is controlled to be 4-8 passes in the longitudinal rolling stage, the pass reduction rate is 15%-36%, and the rolling speed is controlled to be 2.2-3.8 m / s ‑1 ; and the finish rolling temperature is controlled to be 860-900 DEG C. According to the method, the low-temperature characteristics of the billet after being discharged are utilized, the "temperature difference" characteristics of the billet in the thickness direction in each deformation stage are fully utilized, the double grain refining effects of recrystallization and large reduction grain crushing are realized, the grain size is more than 9 levels, the waiting time is saved, and the rolling efficiency is obviously improved.