162results about How to "Control speed" patented technology

The invention discloses a ventilation and air exchange device for a green building. The ventilation and air exchange device comprises a ventilation and air exchange box, a mounting plate, a ventilation and air exchange opening, a rotary air disc and fan blades. Mounting plates are fixed to the two ends of the two sides of the ventilation box, fixing pins penetrate through the interiors of the mounting plates, one ends of the fixing pins extend into the green building wall, and ventilation ports are formed in the two ends of the outer side of the ventilation box. According to the ventilation device for the green building, a fan motor is used for driving a linkage shaft to rotate, and a transmission assembly is matched to enable a fan shaft to rotate synchronously, so that two rotating wind discs and a plurality of fan blades are driven to rotate, outdoor fresh air is extracted and fed into the green building, and the ventilation effect is improved. According to the indoor air purification device, vitiated air, harmful gas and microorganisms in a building can be effectively diluted and discharged, so that the indoor air quality is improved, a healthier and more comfortable living environment is provided for people, indoor oxygen can be effectively supplemented, and the freshness and vitality of indoor air are kept.

The utility model provides a blending device convenient to operate, which relates to the technical field of blending devices, and comprises a blending box and a regulation and control mechanism, a sealing cover is arranged at the top end of the blending box, and through the arrangement of the regulation and control mechanism, an instruction is sent to an electronic controller through a wireless control unit. The current actual rotating speed data of the motor are obtained through the built-in Hall effect sensor, the controller compares and analyzes the actual rotating speed and the preset target rotating speed, the current control loop is automatically adjusted so as to indirectly regulate and control the running speed of the motor, and the electronic controller controls the current in the motor so as to control the running speed of the motor. The current sensor continuously monitors the change condition of the actual current in the motor coil to ensure that the motor can output the required torque according to the expectation and can also realize the dynamic adjustment of the rotating speed, so that the uniform mixing device can realize the uniform mixing according to the actual operation conditions and the specific requirements of the mixing task; and the rotating speed and the torque output of the motor are flexibly and accurately controlled.

The invention discloses an adjusting system for controlling the rotating speed of an automobile engine, and the system is characterized in that the system comprises a data collection module which collects the conventional operation parameters of the automobile engine in real time, the conventional operation parameters comprise the rotating speed, the torque, the air inflow, the oil temperature and the oil pressure, and also collects the acceleration, the gradient information, the external environment temperature and humidity of a vehicle and the driving behavior data of a driver; such as accelerator pedal depth change rate and brake frequency; the data analysis module is connected with the data acquisition module and is used for deeply mining a relationship and a potential rule in data by applying a long short-term memory (LSTM) network algorithm in deep learning and a fusion analysis method based on a physical model, identifying a real-time running state and a future change trend of the engine and intelligently diagnosing potential fault hidden dangers; the fuel injection amount and the ignition time can reach the optimal state through accurate rotation speed adjustment, fuel consumption is greatly reduced, fuel economy is improved, and expenditure is saved for users.

The invention relates to the technical field of waste gas treatment, in particular to a waste gas adsorption fixed bed air uniformizing device which comprises an air inlet pipe installed on an air uniformizing box, an adjusting mechanism for adjusting the amount of waste gas entering the air uniformizing box is arranged on the air inlet pipe, and the adjusting mechanism is fixed to one side of the air uniformizing box. A flow guide mechanism for guiding waste gas to directionally flow in the air uniformizing box is arranged in the air uniformizing box, and a cleaning mechanism for removing dust in the air uniformizing box is arranged on the air uniformizing box. According to the waste gas treatment device, the flow guide mechanism is arranged, in the waste gas treatment process, waste gas is guided, waste gas backflow can be prevented, gas can be evenly distributed in an air distributing box, and a filter plate can be rapidly and conveniently disassembled and assembled; according to the waste gas treatment device, the speed and flow of waste gas entering the treatment device can be controlled, and dust on the filter plate can be scraped off in the process of drawing the filter plate by arranging the dust removal mechanism.

The invention discloses a micro-drip-irrigation three-dimensional soil fixation mesh pad and a preparation method thereof, and relates to the technical field of ecological environment protection, the micro-drip-irrigation three-dimensional soil fixation mesh pad comprises an irrigation device and a three-dimensional soil fixation mesh pad, and further comprises a micro-drip-irrigation assembly connected with the three-dimensional soil fixation mesh pad, the micro-drip irrigation assembly comprises a plurality of reinforcing ribs used for transmitting fluid and a plurality of micro-drip irrigation switches arranged on the reinforcing ribs, and the micro-drip irrigation switches are used for controlling the speed of sucking the fluid from the reinforcing ribs; the problem that irrigation is uneven due to the fact that an irrigation line of an existing three-dimensional geonet pad irrigation device is long is solved.

The utility model provides a system for preparing glyphosate by oxidizing N-(phosphonomethyl) iminodiacetic acid. The system comprises a high-pressure reactor and a built-in strengthening unit, at least two catalyst bed layers are arranged in the high-pressure reactor, each catalyst bed layer is arranged below the liquid level in the high-pressure reactor, and a built-in strengthening unit is arranged between every two adjacent catalyst bed layers; the built-in strengthening unit comprises a first strengthening reactor and a receiving disc arranged under the first strengthening reactor, the receiving disc is of an inverted arc-shaped concave structure with a low center and a high edge, an acceleration area is arranged in the center area of the receiving disc, and the acceleration area is arranged opposite to an outlet of the first strengthening reactor. According to the system disclosed by the utility model, oxygen and a N-(phosphonomethyl) iminodiacetic acid solution are crushed and dispersed into micron-sized bubbles through the enhanced reactor, so that the dissolution rate of oxygen and the oxidation reaction rate are greatly improved, and the conversion rate of raw materials is improved.

The invention relates to the technical field of rice processing, and discloses an intelligent temperature-control light-throwing slow-grinding rice technology. The intelligent temperature-control light-throwing slow-grinding rice technology comprises the following steps that pretreatment is conducted, specifically, unhulled rice is cleaned and subjected to impurity removal, and cleanliness and purity of the unhulled rice are ensured; the intelligent temperature control system monitors and adjusts the temperature in the rice milling process in real time, meanwhile, the slow milling process is adopted, the rice grain structure is prevented from being damaged, through the temperature sensor and the temperature control device, the temperature change in the rice milling process is monitored in real time, a heating or cooling system of the rice milling machine is automatically adjusted so as to keep the optimal rice milling temperature environment, and meanwhile, the temperature control device is used for controlling the temperature of the rice milling machine. According to the slow milling process, the rotating speed of a rice milling roller is accurately controlled, the milling process is slowed down while the rice milling efficiency is guaranteed, rice can be gradually peeled under low pressure and friction, more natural fragrance and nutritional ingredients are reserved, and therefore the taste of the rice is improved, the broken rice rate is reduced, and the overall product quality is improved.

The utility model relates to the technical field of plastic particle production, and discloses a plastic particle extrusion device for sound insulation plastics, which comprises a base, a screw extruder is arranged at the top end of the base, and a feed port is fixedly connected to the left side of the top end of the screw extruder. According to the extrusion device for the plastic particles for the sound insulation plastic, through the arrangement of a lifting rope, a winding shaft and a storage frame, the plastic particles can fall into the storage frame, water in a cooling box can cool the plastic particles, a second servo motor is started after the plastic particles are cooled, the second servo motor drives the winding shaft to rotate so that the winding shaft can wind the lifting rope, and therefore the plastic particles can be extruded. And water in the storage frame can be filtered through filtering holes in the inner side wall of the storage frame, plastic particles in the storage frame can be conveniently and uniformly taken out when the storage frame ascends to a certain height, and the problems that the plastic particles are inconvenient to take out from the interior of the cooling box, and the working efficiency is easily affected are solved.

The invention provides a nano material for a cutter and a preparation method and a product of the nano material, and relates to the technical field of metal materials. The nanometer material is prepared from the following raw material components in parts by weight: 60 to 80 parts of graphene, 10 to 25 parts of nanometer magnesia powder, 10 to 20 parts of nanometer cobalt powder, 5 to 10 parts of lanthanum oxide, 10 to 20 parts of yttrium oxide, 20 to 35 parts of chromium carbide, 20 to 35 parts of a ball milling regulator, 5 to 15 parts of iron powder, 1 to 3 parts of calcium sulfide and 0.5 to 1.5 parts of boron powder. The average particle size of the chromium carbide is 20-50nm. All the components are dispersed and then subjected to intermittent ball milling treatment to obtain the nanometer material, the nanometer material is used for preparing the cutter by controlling the sintering temperature, the heating rate and the time and adopting a gradient heating and gradient cooling method, so that the internal structure of the cutter is more uniform, and the mechanical property is remarkably improved.

This invention discloses a transverse pipe conveying device, belonging to the field of pipe conveying technology. It includes a pipe conveying mechanism comprising a conveying frame, multiple conveying rollers, a roller drive mechanism, transverse conveying mechanisms disposed on one or both sides of the conveying frame, and a lifting mechanism for lifting the pipes on the conveying rollers. The transverse conveying mechanism includes a conveying arm shaft, multiple transverse conveying arms, and a rotation drive mechanism. The conveying frame is also equipped with a guide mechanism for guiding the pipes onto the transverse conveying arms. The guide mechanism includes multiple guide plates arranged along the length of the conveying frame, with the bearing surface of the guide plates inclined inwards and outwards. This invention features a compact overall layout, eliminating the need for adjustments to workshop height, reducing workshop construction costs. The pipe conveying process is stable, ensuring the safety of equipment and personnel. The pipe conveying process is simple to operate, reducing labor costs and the possibility of operational errors.

A noise reduction circuit control method for a shredder, comprising the following steps: S10: setting the current range of the motor in the shredder to I‑0~I‑max, where I‑0 represents zero current, and I‑max represents the current corresponding to the motor overload protection value; S20: setting the current I‑a corresponding to the full power output threshold value of the motor within the current range; S30: setting multiple current gears within the current range I‑0~I‑a, as: I‑a1, I‑a2, ..., I‑an; and setting multiple different output powers corresponding to the multiple current gears; S40: the current detection module detects the current signal I‑b of the motor, and matches the corresponding output power as the motor working power output. A noise reduction circuit control method for a shredder in the present invention can detect the current delivered to the motor through the improvement of the circuit structure on the main control board of the shredder, thereby realizing the control of the motor speed and achieving the purpose of noise reduction.

The present invention discloses a housing assembly of an integrated stove and an integrated stove, comprising: a body, the body being provided with an air outlet; a head, the head being provided above the body, the head being provided with a fan installation cavity, a first air inlet and a second air inlet; a first fan and a second fan, the inlet of the first fan being connected to the first air inlet, the inlet of the second fan being connected to the second air inlet; a first air duct and a second air duct, the first air duct and the second air duct being independently arranged, the first air duct being connected to the outlet and the air outlet of the first fan respectively, the second air duct being connected to the outlet and the air outlet of the second fan respectively, at least one of the first air duct and the second air duct comprising an outlet extension section, an outlet bending section and a guide section connected in sequence along a direction from an outlet of a negative pressure device to an air outlet, the outlet extension section extending in an up-down direction, and the outlet bending section extending obliquely in a direction from the outlet extension section to the guide section. The housing assembly of the integrated stove according to the present invention has high flow rate utilization and low noise.

This utility model relates to the field of feed feeding technology, providing a feeding device suitable for the initial feeding of fish fry in factory-farmed aquaculture. The device includes a base, a feed storage bin, a spotlight, a conduit, a suction pump, and a particle detector. The feed storage bin is located on the base and holds the feed; the spotlight has a through-hole; the first end of the conduit connects to the feed storage bin, and the second end of the conduit connects to the spotlight through the through-hole; the suction pump is located in the conduit and is used to draw feed to the through-hole; the particle detector is located in the conduit and is used to detect the amount of feed flowing through. This utility model, by setting up a feed storage bin and a spotlight connected by a conduit, allows feed to flow through the conduit to the through-hole; the suction pump in the conduit regulates the flow rate of the feed to control the feeding speed; and the particle detector accurately detects the amount of feed flowing through, improving feeding accuracy and benefiting the fry rearing stage; it can control the feeding speed and quantity, reduce labor costs, make operation more convenient, and improve the survival rate of fry rearing.

The utility model belongs to the technical field of building construction discharging, and particularly relates to a building construction discharging device which comprises a bottom plate, a fixing frame is installed on the top of the bottom plate, the height of the fixing frame is of an adjustable structure, and the fixing frame comprises a first n-shaped frame installed on the top of the bottom plate. A second n-shaped frame is arranged on the top of the first n-shaped frame, a plurality of first telescopic rods are installed between the first n-shaped frame and the second n-shaped frame, and the first telescopic rods are used for blocking materials. Through the design of the driving part, particularly the servo motor drives the threaded rod to rotate, so that the threaded ring and the second [-shaped frame are driven to move up and down, and adjustment of the overall height of the fixing frame is achieved. Due to the height-adjustable design, the device can be flexibly adjusted according to different working requirements, so that the device is suitable for unloading operation at different heights and angles. The practicability and adaptability of the device are improved, and the working efficiency is also greatly improved.

The invention belongs to the technical field of inflator pumps, and particularly relates to an intelligent regulation and control air pump system, the air pump system realizes air compression through cooperation of a brushless motor and a screw which are arranged, and a main control module calculates theoretical output pressure of a compression module according to obtained target tire pressure and real-time tire pressure data fed back by a pressure detection module; the main control module controls the electronic controller according to the theoretical output pressure, then the rotating speed of the screw is adjusted by controlling the rotating speed of the brushless motor, intelligent control over the air pressure of compressed air by the inflator pump is achieved, the air pump system can reduce the size of the air pump, the air inlet mode of the screw is continuous and is not interrupted, and the air inlet efficiency is improved. According to the air pump, the effects of low noise and large air output can be achieved, efficient, stable and safe operation of the air pump under different working conditions can be guaranteed on the basis of the PID control calculation unit and the multi-stage pressure regulation and optimization technology, the use experience of a user is improved, the service life of equipment is prolonged, and the maintenance cost is reduced.

This utility model discloses a magnetically speed-regulated pipe cleaning nozzle, comprising: a central shaft, a nozzle seat, a base, and a magnetic speed-regulating assembly. One end of the central shaft has a connecting port, and the other end is fitted with a sealing ring. The nozzle seat has several spray holes, and a sliding ring is rotatably mounted on the outer wall of the nozzle seat. The base is fitted onto the outside of the central shaft, and its outer wall is threadedly connected to a first mounting hole. The base contains a first mounting cavity and a second mounting cavity. The second mounting cavity is rotatably connected to the central shaft via several bearings. The magnetic speed-regulating assembly includes a magnetic ring, which is fixedly mounted on the central shaft. Several magnets are mounted on the magnetic ring, and a magnetic ring sheath is fitted around the magnetic ring. A copper ring is fixedly mounted on the inner wall of the first mounting cavity. This utility model can limit the nozzle's rotational speed, thereby preventing the nozzle from becoming uncontrollable due to excessive speed, and can also reduce the wear rate of the central shaft, extending the nozzle's service life.

The invention belongs to the technical field of automobile active suspension damping systems, and particularly relates to a mute stiffness valve and a control method thereof. The stiffness valve is switched from an open state to a closed state, and the plunger at least comprises a first stroke section, a second stroke section and a third stroke section; in the first stroke section, first direction current is input into the voice coil motor structure, so that the plunger is in an acceleration state; in the second stroke section, current input to the voice coil motor structure is stopped and / or second-direction current opposite to the first-direction current is input, so that the plunger is in a deceleration state; and in the third stroke section, the current in the first direction is input into the voice coil motor, so that the sealing element between the plunger and the air vent is compressed and seals the air vent. By controlling the current input into the voice coil motor structure, control over the moving direction and speed of the plunger is achieved, on the premise of quick response, the impact force generated when the plunger makes contact with the sealing support is remarkably reduced, and noise generated by impact is restrained.

The invention discloses a traction cable circulating system which comprises a traction circulating system and a lifting system, the lifting system comprises a plurality of first winches, lifting cables and fasteners, the first winches are arranged at the positions where cable strands are anchored and placed on a splay cable saddle, and the first winches are connected through the arranged lifting cables; the guide cable is provided with a fastener which is fixedly arranged on the lifting cable, and the lifting cable is fixedly connected with the cable strand through the fastener; the lifting system is used for lifting a cable strand to the traction system; the traction system comprises a circulating cable, a traction piece and a second winch; a traction piece is fixedly arranged on the circulating cable and is used for pulling a fastener to fix a cable strand on the circulating system; the fastening piece and the traction piece are both provided with hooks which are meshed with each other in a grasping mode. The invention aims to solve the problem of quick connection of the cable strand and the traction cable system and improve the construction efficiency.

The present invention relates to the technical field of yarn controllers, and in particular to a yarn controller, a power supply circuit, a main controller and a yarn control module. The main controller is electrically connected to the power supply circuit and the yarn control module respectively. The main controller comprises a power switching circuit, a filter circuit, a main control circuit, an interface communication circuit and a crystal oscillator circuit. The main control circuit is electrically connected to the power switching circuit, the filter circuit, the interface communication circuit and the crystal oscillator circuit respectively. The power switching circuit is electrically connected to the power supply circuit and the filter circuit respectively. The power supply circuit is provided to supply power to the main controller and the yarn control module, and can be used to filter out common mode interference, thereby ensuring the stable operation of the main controller and improving the anti-interference ability of the main controller. The main controller is electrically connected to the yarn control module, so that the tightness and the feeding speed of each yarn can be accurately controlled, thereby improving the weaving accuracy of the yarn controller, so as to weave a variety of patterned fabrics.

The utility model relates to the technical field of cement production, and discloses a raw material feeding device which comprises a material conveying cylinder, a conical feeding cylinder is fixedly arranged at the top end of the material conveying cylinder, and a feeding mechanism, an anti-blocking mechanism and a cleaning mechanism are arranged in the material conveying cylinder from bottom to top. By arranging the feeding mechanism, the anti-blocking mechanism and the cleaning mechanism, raw materials are placed in the conical feeding barrel during use, materials adhered to the inner wall of the conical feeding barrel can be scraped through matched use of a connecting column, a scraping rod and a brush, material waste is avoided, and the raw materials can be conveniently cleaned through matched use of a stand column, a cylinder, a pull rope and a ball. According to the feeding device, raw materials in the material conveying cylinder can be disturbed, the materials are prevented from being blocked in the material conveying cylinder, through cooperative use of the fixing base, the discharging hole, the connecting cylinder, the connecting shaft, the first conical teeth, the rotating plate, the second conical teeth, the frequency converter and the like, the feeding speed can be controlled, and the feeding uniformity can be improved through cooperative use of the fixing base, the discharging hole, the connecting cylinder, the connecting shaft, the first conical teeth, the rotating plate, the second conical teeth, the frequency converter and the like.

This application relates to the field of flexible plate testing technology, and in particular to a flexible plate testing device, including a fixed plate, a sliding plate, a follower plate, and a driving mechanism. The top surface of the fixed plate is suitable for connection to one end of the flexible plate. The top surface of the follower plate, at the end away from the sliding plate, is suitable for connection to the other end of the flexible plate. The driving mechanism is connected to the sliding plate and is used to drive the sliding plate to perform linear reciprocating motion, thereby driving the follower plate to perform linear reciprocating motion. During this process, the position of the crease in the middle of the flexible plate continuously changes. The fixed plate, sliding plate, and follower plate cooperate with each other to realistically simulate the bending and stretching states of the flexible plate in actual use. The gap between the top surface of the fixed plate and the bottom surface of the follower plate can be adjusted according to the thickness and bending radius of the flexible plate being measured to meet the testing requirements of various working conditions, greatly improving versatility.

The invention belongs to the technical field of electric power inspection, and particularly relates to an electric power intelligent inspection large model based on extremely cold regions, which comprises an electric power intelligent inspection system and an inspection robot, and is characterized in that the electric power intelligent inspection system is arranged in the inspection robot; the electric power intelligent inspection system comprises a prediction simulation module, a large model construction module and an intelligent driving module. The prediction simulation module is electrically connected with the large model construction module, the large model construction module is electrically connected with the intelligent driving module, the intelligent driving module is electrically connected with the inspection robot, and the prediction simulation module is used for predicting the inspection speed of the inspection robot. The device solves the problems that when a current inspection robot inspects electrical equipment in an extremely cold area, the inspection speed cannot be controlled at high precision due to the fact that the current inspection robot is influenced by rain, snow and low temperature and the shooting definition is reduced, and the quality of a shot picture is influenced and the inspection quality of the electrical equipment is influenced.

The invention relates to a crystallinity characterization method and a preparation method of a boron nitride interface layer of a ceramic-based composite material, belongs to the technical field of ceramic-based composite materials, and solves the problems of inaccurate and complicated characterization of the structure of the boron nitride interface layer in the ceramic-based composite material, no unified standard and high cost in the prior art. The method comprises the following steps: measuring spin-lattice relaxation characteristic time T1 of an isotope B-11 in the boron nitride interface layer by adopting a solid nuclear magnetic resonance method, and characterizing the crystallinity of the boron nitride interface layer by adopting T1. The method can accurately reflect the local atomic-scale structure and movement of the boron atomic nucleus of the boron nitride interface layer, and the microstructure of the boron nitride interface layer affects the combination between the tow fiber and the matrix and determines the toughening effect of the tow fiber. According to the method, quantitative characterization of the interface layer structure in the ceramic-based composite material is realized, optimization of a boron nitride interface layer deposition process is effectively guided, and improvement of the performance of the composite material is facilitated.

The invention relates to a constructional engineering material conveying device, and relates to the technical field of conveying devices, the constructional engineering material conveying device comprises a conveying pipe, a material distributing structure is mounted on the conveying pipe, a feeding structure is mounted on the material distributing structure, circulating structures which are symmetrically distributed are mounted in the material distributing structure, and a stirring structure is mounted in the feeding structure; according to the constructional engineering material conveying device, the extrusion inlets distributed in an array mode are formed in the connecting pipe, and the extrusion plate sliding up and down is matched, so that a concrete mixture enters the connecting pipe through the extrusion inlets in an extrusion mode of the extrusion plate; abrasion between the concrete mixture and the threaded rotary valve is avoided; the automatic feeding device is completely driven by high-pressure gas injected into the conveying pipe, so that the threaded rotary valve rotates, and the threaded rotary valve is matched with the circulating structure to drive the extrusion plate to slide up and down, so that the automatic feeding effect is achieved, and the situation that high-pressure gas in the conveying pipe vibrates, the conveying pipe and the feeding device vibrate, and feeding of concrete mixtures is affected is avoided.

The utility model belongs to the technical field of screening devices, and particularly discloses a screening device for plastic particle processing, which comprises a discharge pipe, the inner wall of the discharge pipe is detachably connected with a first guide plate, a first screen plate, a third guide plate, a second screen plate and a second guide plate in sequence from top to bottom, the first screen plate is detachably connected to the lower end of the first guide plate, and the second screen plate is detachably connected to the lower end of the second guide plate. The third guide plate is detachably connected to the lower end of the first sieve plate, the second sieve plate is not in contact with the third guide plate, the lower end of the second sieve plate is detachably connected with the second guide plate, and an inclined plate is obliquely and fixedly connected to the portion, close to the second sieve plate, of the lower end of the third guide plate. When the plastic particle screening device is actually used, dust in plastic particles can be rapidly screened, subsequent processing of the plastic particles by workers can be facilitated, and the plastic particle screening speed can be controlled, so that the plastic particle screening efficiency is improved, the screen can be rapidly cleaned, and impurities in the packaged plastic particles can be efficiently screened.

The utility model discloses a double-layer linear vibrating screen, which relates to the technical field of vibrating screens, and comprises a support plate, an adjusting mechanism is arranged below the support plate, the upper surface of the support plate is fixedly connected with a blanking plate, the upper surface of the blanking plate is fixedly connected with a feeding plate, one side surface of the blanking plate is slidably connected with an adjusting plate, and the adjusting plate is fixedly connected with the feeding plate. A motor is fixedly connected to one side face of the supporting plate, and the output end of the motor is rotationally connected with the discharging plate. The discharging device is reasonable in design structure, can drive the extruding plate on the upper portion of the rotating roller to extrude materials through the rotating roller, enables the materials to fall to the lower portion of the rotating roller, completes discharging, enables the materials to fall at a certain speed and not to fall one by one, achieves the effect of even discharging, and solves the problems that in the prior art, discharging is not even, and discharging efficiency is high. The problems that materials on a screen are prone to being piled, the screening effect is poor in the places where the materials are dense, and the utilization rate is low in the places where the materials are few are solved.

The utility model discloses a cable sheath extrusion equipment, including the processing platform, the top right -hand member of processing platform is fixedly installed with the feed pipe, the inside fixed mounting of feed pipe has the screen, the top left -hand member of processing platform is fixedly installed with L type board, one side fixed mounting of L type board has servo motor, and the output of servo motor is fixedly installed with small belt pulley, and one side of small belt pulley is connected with large belt pulley through belt drive, and the top one side edge of large belt pulley is fixedly installed with the scraper, and the other end of scraper extends to the inside of feed pipe and is contacted with the surface of screen connection, and large belt pulley is rotatably connected with the top right -hand member of processing platform. The utility model servo motor drives the end of scraper to slide on the surface of screen smoothly, effectively controlled the speed of screen blanking, ensured the uniformity of blanking, and simultaneously, it also prevented the blockage of screen surface to the stability of cable sheath extrusion process, ensured the processing progress.

The invention discloses a multi-rotating-speed self-adaptive control strategy for a diesel generating set, relates to the technical field of diesel generating sets, and solves the technical problem of relatively high energy consumption caused by fixed rotating speed and manual rotating speed adjustment of an existing diesel generating set. The strategy comprises the steps that an electricity load current value is obtained, the working state of a relay set connected with a control circuit of a rotating speed controller is controlled according to the fact that the electricity load current value is located at a preset electricity load standard value, and therefore a rotating speed output mode, corresponding to the working state of the relay set, in the rotating speed controller is triggered. And the diesel engine operates at the preset rotating speed in the rotating speed output mode. Different rotating speeds of the diesel engine are controlled, electricity loads in different ranges automatically correspond to different rotating speeds of the diesel engine, the rotating speed of the diesel engine is increased when the electricity loads are large, the rotating speed of the diesel engine is reduced when the electricity loads are small, and the purpose of saving oil and energy is achieved.

The utility model discloses a kind of assembled sports field natural lawn repairing devices, belong to lawn repairing technical field.The device includes support, rotationally arranged rotating rod on support, the one end of rotating rod is provided with the drive element of driving its rotation, the other end is threadedly connected with soil taking cylinder, soil taking cylinder is equipped with pressing plate, rotating rod is equipped with with the press part of fixed connection of pressing plate outside sleeve.Set, rotating rod rotationally sets in sleeve.The utility model's advantage is in at:through drive element rotation of rotating rod is driven so that soil taking cylinder is displaced under the action of thread, to be taken out in lawn and soil block in depth, this step compared with the foot of prior art in soil taking can effectively control depth, so that soil taking is more accurate.Pressing plate also can be moved by press part, so that the soil taken is pushed out, by setting in soil taking cylinder simultaneously, convenient and fast to use.

The utility model relates to the technical field of vibrating screening machines, and discloses a mining vibrating screening device which comprises a base, a screening box is connected to the base through a vibrating mechanism, a screening groove is formed in the screening box, a detachable screen is connected to the interior of the screening groove, and a feeding groove is connected to the portion, located on one side of the screening groove, of the screening box. The bottom of the feeding groove is of a slope structure, an outlet of the feeding groove faces one side of the screening groove, a material control assembly used for controlling material flow is arranged at the outlet of the feeding groove and comprises a baffle, hydraulic cylinders are arranged on the screening box and located on the two sides of the feeding groove respectively, the telescopic ends of the two hydraulic cylinders are connected with a mounting frame, and the baffle is connected to the mounting frame. The bottom of the baffle is connected with a plurality of adjusting plates with adjustable intervals. Through mutual cooperation of the adjusting plate with the adjustable distance and the baffle with the adjustable height, the ore feeding speed and the feeding amount are controlled, accumulation of materials on the screen is reduced, screen blocking is reduced, and the screening efficiency is improved.