21results about How to "Reduce mechanical shock" patented technology

The application discloses a top-opening drum washing machine inner drum positioning method and a washing machine. The method comprises the following steps: after setting a washing program, the inner drum is controlled to rotate at a preset low speed; the rotation angle of the inner drum is collected and the deviation of the rotation angle from a target angle is calculated; the motor speed is controlled by PID closed-loop regulation with feedforward compensation based on the deviation, wherein the feedforward compensation amount is calculated according to the load weight, the speed fluctuation and / or the deviation change rate; when the deviation is less than a preset threshold, segmented braking is performed until the inner drum is locked at the target angle position; if the locking fails, the inner drum is reversely rotated to a preset angle, and the segmented braking is retried with corrected braking parameters. The application combines PID regulation with feedforward compensation and segmented braking, introduces a failure retry and parameter self-adaptive correction mechanism, and realizes high-precision, impact-free and high-reliability positioning of the inner drum.

The utility model discloses a 10-35kV energy storage and boost all-in-one machine, which comprises an energy storage module, a boost module and a control unit, a connecting mechanism is arranged between the energy storage module and the boost module, the connecting mechanism comprises a protection structure and a cooling assembly, a lead for connecting the energy storage module and the boost module passes through the protection structure, and the cooling assembly is connected with the control unit. The high temperature generated when the wire is electrified is reduced through the cooling assembly; the protection structure comprises an upper semicircular shell and a lower semicircular shell, and the upper semicircular shell is rotationally connected with the rear portion of the top of the lower semicircular shell. According to the 10-35kV energy storage and boosting all-in-one machine, the connecting mechanism is arranged between the energy storage module and the boosting module, so that a connected wire penetrates through the interior of the protection structure, the protection structure is convenient to open, wire arrangement is carried out, the temperature of the heated wire can be rapidly reduced through the cooling assembly, and the working efficiency is improved. And the condition of large loss caused by the wire temperature process is avoided.

The invention discloses a control method for switching sitting and standing postures of a wheel-foot robot. The control method comprises the following steps of S1, initial modeling, S2, strategy network and value network setting, S3, strategy network optimization and S4, deployment implementation. The invention provides the control method for switching the sitting posture and the standing posture of the wheel-foot robot, and the control method gives consideration to stability, smoothness and generalization ability.

The removing device comprises an outer frame, the top end of the interior of the outer frame is fixedly connected with a baffle, the bottom end of the baffle is provided with a pushing plate, the side, away from the pushing plate, of the outer frame is provided with a discharging port, the interior of the discharging port is fixedly connected with an output groove, and the output groove is internally provided with a discharging port. And the pushing plate is used for pushing the bonded materials away from the output groove. By means of the baffle, the conveying crawler belt and the driving motor, the accumulation amount of bonding materials is always controlled to be within a controllable range through high-frequency cleaning, and compared with periodic cleaning, the conveying efficiency is greatly improved. And in addition, accumulation of adhesion objects among batches is avoided in the time dimension, and it is ensured that the effective action area of the baffle is constant in the space dimension.

The utility model discloses an asymmetric cooperative control three-phase balance motor soft starter, comprising a three-phase AC power supply input end, a power adjusting unit, an output end connected to a three-phase asynchronous motor, and a main controller which are connected in sequence. The power adjusting unit comprises an A-phase control module which is internally provided with a first thyristor at least controlled by a main controller; the B-phase control module is internally provided with a pair of antiparallel second thyristors controlled by the main controller; and the C-phase control module is internally provided with a pair of third thyristors which are controlled by the main controller and are reversely connected in parallel. The main controller cooperatively controls the conduction angles of the first thyristor, the second thyristor pair and the third thyristor pair in the starting process of the motor by outputting a control signal so as to adjust the voltage applied to the motor and improve the balance of the three-phase output voltage. According to the utility model, the three phases are controlled, so that the three-phase balance during starting is effectively improved, and the vibration and noise of the motor are reduced.

The invention relates to the technical field of water conservancy automation control and edge computing, in particular to a self-adaptive PID control system for a water conservancy reservoir environment, which comprises an edge computing gateway, a water level sensor, a flow sensor and a servo execution mechanism, fluid static geometric parameters are obtained through a topological mapping module, an initial state matrix of a fluid momentum state observer is established, a momentum decoupling module inputs a dam front water level, upstream incoming water flow and opening data to update the state matrix, and transient fluctuation energy characteristics and real reserve residual characteristics are generated through decoupling. The priori fitting module calculates proportion, integral and differential coefficients according to the parameters, and the closed-loop evolution module generates a control instruction and corrects bottom resistance parameters; physical separation of real reservoir capacity change and surface wave disturbance is achieved, invalid oscillation of the gate is reduced, control stability under the flood peak working condition is improved, and the service life of an executing mechanism is prolonged.

The invention discloses a cleaning machine and a cleaning control method thereof.The cleaning machine comprises a water tank, a water outlet valve and at least one cleaning device, the water tank is used for containing objects to be cleaned, the water outlet valve is located above the water tank, and the cleaning device is installed below the water tank in an attached mode; the cleaning control method of the cleaning machine comprises the steps that when it is determined that a to-be-cleaned article is placed in a water tank, the type of the to-be-cleaned article and the spot area of the to-be-cleaned article are obtained; when the dirty area is larger than the preset area, a water outlet valve is controlled to be opened, and a cleaning device is controlled to be started; the water level height in the water tank and the stain area of the to-be-cleaned object are continuously obtained; the actual water flow of the water outlet valve is controlled according to the type and the water level height, and the actual vibration frequency of the cleaning device is controlled at least according to the type and the stain area, so that water resources can be saved, and the form integrity and taste of the to-be-cleaned articles can be guaranteed to the maximum extent while the cleaning effect is guaranteed.

The application discloses a bolt tightening method based on a vision-language-action model, and belongs to the technical field of intelligent manufacturing. The method comprises the following steps: collecting scene image data of a target bolt and a workpiece region around the target bolt, extracting multi-scale visual features from the collected scene image data, and obtaining a multi-scale visual feature vector Fv; performing semantic analysis on a natural language instruction to obtain a language feature vector Fl; performing cross-modal feature alignment on the Fv and the Fl to obtain an aligned feature vector Fvl; performing action decoding and parameterized mapping processing on the Fvl to generate an action parameter vector Fd; inputting the Fd into a control execution module to perform kinematics solving and control instruction generation, so as to drive an automated execution device to complete a bolt tightening operation. The method can improve the accuracy, adaptability and stability of bolt tightening operation under complex working conditions, and effectively reduce the labor cost of bolt tightening work.

This utility model discloses a stretching machine for woven bag production, including a support base, a support frame on the support base, a servo motor and an eccentric camshaft on the support frame, the servo motor being connected to the eccentric camshaft via a transmission mechanism, a pump water tank fixed on the support frame by two support plates, a water trough on the upper surface of the support base, a shower head between the support frame and the water trough, the pump water tank being connected to the water trough via an inlet pipe, and the pump water tank being connected to the shower head via an outlet pipe, the pump water tank having an active chamber and a rotating chamber inside. This utility model achieves forced circulation of cooling water through the reciprocating motion of a piston plate, avoiding the problem of decreased heat dissipation efficiency caused by increased water temperature in traditional stagnant water cooling, maintaining a stable cooling effect, and improving the consistency of the physical properties of the stretched woven bags.

The utility model relates to the technical field of lead storage battery production, in particular to a lead storage battery partition plate cutting device. Comprising a platform, a cutting assembly is arranged at the right end of the platform, a supporting assembly for mounting a tray is arranged at the left end of the platform, and a fixed-length conveying assembly is arranged in the middle of the platform. According to the supporting assembly, through the linkage design of a supporting block of a guiding inclined face, a lower telescopic rod and a pin rod, rapid positioning installation and automatic release of the material disc are achieved. After the material disc rolls to the supporting block, the lower telescopic rod retracts to enable the supporting block to exit, the material disc is only supported by the pin rod and freely rotates, the manual loading and unloading strength is remarkably reduced, and the continuous feeding efficiency is improved.

The utility model relates to die technical field discloses electric vehicle storage box injection molding die demolding mechanism, including work table, the work table top end is provided with the mounting groove, the mounting groove inside is equipped with the lower mould, the lower mould inner wall is equipped with the mould core, the work table includes the jacking mechanism for the ejection plastic piece, work table inner wall one side fixed mounting has the first motor, the first motor output shaft fixed sleeve has the two -way screw rod, the two -way screw rod both sides all are equipped with the guide rod, the utility model discloses through the design of jacking mechanism, makes first jack and second jack drive through the same lifting plate, ensures plastic piece bottom end and inner wall force simultaneously, avoids the cracking when demolding because of uneven stress, compared with traditional single part ejection mode, has shortened the demolding time, improved the stability of demolding, has guaranteed the quality of plastic piece, and the first spring resets the auxiliary lifting plate after demolding, reduces mechanical impact, improves the stability in the use process of jacking mechanism.

The application discloses an engine control method and related equipment, and relates to the technical field of new energy vehicles, and the method comprises the following steps: in the case that the duration that a target vehicle meets a preset starting condition reaches a first preset duration based on vehicle state data and driver demand data, starting the engine of the target vehicle; determining a target idle speed of the engine based on a temperature correlation parameter and a shutdown history parameter; after the engine runs at the target idle speed for a preset stable duration, determining a target operation mode according to driver operation data and a state of charge of a power battery of the target vehicle; controlling the engine to adjust from the target idle speed to a target dynamic speed; in the case that the duration that the target vehicle meets a preset shutdown condition reaches a second preset duration, shutting down the engine. The application can improve the engine start-stop stability, speed transition smoothness and operation mode matching, and reduce engine mechanical impact and energy loss.

A control method for slow variable-power start-up of a scraper conveyor includes: controlling the start-up of the motors at the head and tail of the scraper conveyor in four stages: In the first stage, the conveyor starts from zero speed and accelerates uniformly until the output torque of the head motor reaches a first torque threshold, at which point it enters the second stage; in the second stage, the conveyor moves at a uniform speed at the speed at which it entered the second stage, until the chain tension reaches a tension threshold, at which point it enters the third stage; in the third stage, the conveyor uses the speed at which it entered the third stage as the initial speed, gradually increasing acceleration, and then gradually decreasing acceleration until the output torque of the head motor reaches a second torque threshold, at which point it enters the fourth stage; and in the fourth stage, the conveyor moves at a uniform speed at the speed at which it entered the fourth stage. This method can reduce the number of chain tension peaks and the vibration frequency.

The utility model relates to the field of Chinese chestnut shelling processing equipment, and discloses a spacing and height adjustable stock bin device for a Chinese chestnut shelling machine, which comprises a stock bin and a main frame, the stock bin is detachably arranged in the main frame, the front end and the rear end of the stock bin are respectively provided with a plurality of sliding holes, and the sliding holes are communicated with the stock bin. The sliding holes are distributed in a fan shape with the center line of the stock bin as the circle center, and every two front-back corresponding sliding holes form a group. Adjusting sliding blocks capable of moving up and down are arranged at the front end and the rear end of the stock bin respectively, a supporting rod is arranged in each set of sliding holes in a penetrating mode, and the two ends of each supporting rod sequentially penetrate through the corresponding set of sliding holes and the adjusting sliding blocks and extend out of the stock bin. According to the utility model, the adaptability to Chinese chestnuts with different specifications such as large fruits and small fruits is obviously improved, the problem that the large fruits are broken due to too small gaps or the small fruits are not thoroughly stripped due to too large gaps is avoided, and the uniform and stable stripping effect is ensured.

The invention relates to the field of power grid energy storage, in particular to a compressed air energy storage integrated control system based on a smart power grid, which acquires key operation parameters in real time through a data acquisition module, and calculates a power grid regulation demand urgency index and an energy storage system self-regulation capability index based on the key operation parameters through a data analysis module. Determining a comprehensive characterization value; the operation condition division module divides conditions based on the comprehensive characterization value and a condition threshold value; the mechanical inertia sensitivity analysis module evaluates the mechanical inertia sensitivity of the unit by constructing a rotating speed pressure curve; and the working condition adjusting module adopts a standard response interval for the sensitive unit, and adjusts the response interval for the non-sensitive unit according to the mechanical inertia sensitivity. Dynamic balance between the power grid adjusting requirement and the energy storage system adjusting capacity is achieved, quick response of a sensitive unit is ensured, meanwhile, mechanical impact is reduced by delaying response of a non-sensitive unit, and the overall performance and operation reliability of the compressed air energy storage system participating in power grid frequency modulation are improved.

The utility model relates to a hydraulic system for improving the reliability of frequent positive and negative rotation of a gear motor. The hydraulic system comprises a positive and negative rotation motor, a reversing valve, a secondary overflow valve and an oil way system for connecting all parts, a first internal oil way and a second internal oil way are arranged in the secondary overflow valve, the first internal oil way is communicated with the second internal oil way, and preset pressure threshold values of the first internal oil way and the second internal oil way are different. The gear motor solves the technical problems that in the prior art, a hydraulic system is large in impact, key parts are prone to being damaged, and the reliability of a whole machine is poor in the frequent forward and reverse rotation process of the gear motor.

The utility model provides a kind of automobile electronic PCBA board test frame, including test platform, installation through slot is opened in test platform top, test base for placing PCBA board is set in installation through slot, test base top is provided with multiple groups of movable test pincette, test platform top is provided with test rack, the test rack bottom is provided with multiple groups of liftable burning probe corresponding test base, installation through slot bottom is provided with equipment box, heating groove is opened in equipment box top, heating module is set in heating groove inside corresponding test base;By the setting of test pincette, heating module and burning probe, traditional dispersed electrical conduction test, high temperature aging test and program burning are integrated in same equipment, avoid the transfer between PCBA board in manual test frame, aging room, burning device, make the originally step-by-step test process be able to be executed synchronously, solve the problem of long process in traditional test mode.

The utility model relates to the technical field of wind power generation equipment, in particular to a clutch type carbon brush slip ring device for cable twisting prevention of a wind generating set, which comprises an upper turntable assembly, a lower turntable assembly, a clutch mechanism, a slip ring structure and a carbon brush assembly, the clutch mechanism comprises a guide assembly and a shaft sleeve capable of moving axially, when the upper rotating shaft rotates by a certain angle, the upper rotating shaft is meshed with the shaft sleeve through the guide assembly, the shaft sleeve is meshed with the lower rotating shaft through the guide assembly, and a complete torque transmission path can be formed between the upper rotating shaft and the lower rotating shaft. The binding post is electrically connected with the carbon brush assembly through a flexible wire, the arrangement mode of the flexible wire allows relative rotation of the upper rotating disc assembly and the lower rotating disc assembly, and under the condition that a torque transmission path is not formed between the upper rotating shaft and the lower rotating shaft, the upper rotating shaft does not drive the lower rotating shaft to rotate when rotating. The carbon brush assembly and the slip ring structure are kept relatively static, so that rotation friction between the carbon brush assembly and the slip ring structure can be reduced, and maintenance frequency and cost are reduced.

The present application relates to the technical field of automation packaging control, and specifically discloses a kind of automatic insertion control system of laminated baffle for strip bag packaging production line. Mainly solve the problem that baffle blind insertion is prone to physical interference and packaging crushing caused by uneven strip bag stacking, the system includes state detection, shaping intervention, insertion execution, force feedback collection and main control module. The main control module extracts flatness based on surface morphology, automatically intercepts instructions when the safety condition is not met and controls the shaping mechanism to flatten; after reaching the standard, dynamically solve the descent end point and drive insertion; real-time monitoring of dynamic load data during insertion, automatically trigger back-off release and flexible correction action of shaking and retry when interference anomaly occurs. The present application realizes closed-loop verification before insertion and flexible gap-seeking anti-interference during insertion, effectively improves the insertion success rate and avoids damage to the strip bag.

The clay block vibrating screen comprises a box body, a screen plate is installed in the box body, a collecting assembly is arranged in the box body, installation frames are symmetrically arranged on the outer surface of the screen plate in a sleeved mode, the installation frames and the screen plate are connected through sliding assemblies, connecting frames are arranged at the bottom ends of the installation frames, and installation rods are arranged below the installation frames. Connecting blocks matched with the connecting frames are arranged on the mounting rods, the connecting blocks are rotationally arranged in the connecting frames, sliding plates are fixedly arranged at the bottom ends of the mounting rods and are in sliding connection with the inner wall of the box body, a shifting mechanism for driving the two sliding plates to move up and down is arranged in the box body, and reset assemblies are mounted on the sliding plates. And a cleaning mechanism is arranged between the two groups of mounting frames. Through the synergistic effect of the innovative bidirectional dynamic inclined structure and the cleaning mechanism, the problem that traditional screening equipment is prone to being blocked is effectively solved, and therefore the screening efficiency is improved, and the service life of the equipment is prolonged.