57results about How to "Avoid compromising reliability" patented technology

The invention discloses a refrigerant volume control method for a modular water cooler. The refrigerant volume control method for the modular water cooler includes the steps of obtaining the temperature of outdoor environment, setting an initial opening of an electronic expansion valve according to adaptability of the temperature of the outdoor environment to adjust the electronic expansion valve, and setting an opening degree adjusting range of the electronic expansion valve according to the adaptability of the temperature of the outdoor environment; and obtaining the present superheat degree of the system, and adjusting the opening degree of the electronic expansion valve according to the adaptability of the present superheat degree. The opening degree of the electronic expansion valve can adapt to the current temperature condition so that the system can stably start working, the adjusting time is effectively shortened to rapidly reach the stable status, the adjusting range of the electronic expansion valve is preset so that the system reliability influenced by out of control of the electronic expansion valve adjustment in some abnormal status can be avoided; by adjusting the refrigerant volume through the adaptability of the superheat degree of the system, the refrigerant volume of the system can be controlled to operate in a position close to the optimal performance point, so that the superheat degree of the system is controlled, the reliable operation of the system is guaranteed, and the condition that a compressor operates with carrying liquid is avoided effectively.

The invention discloses a power factor correction circuit control parameters adjusting method and device, and air conditioner. The method for adjusting the control parameters of the power factor correction circuit comprises the following steps of acquiring preset control parameters of a proportional-integral controller in the power factor correction circuit; controlling the power factor correction circuit so as to run the preset control parameters; detecting whether the power factor correction circuit works abnormally or not; if the abnormal working of the power factor correction circuit is detected, adjusting the preset control parameters. Through the method, the device and the air conditioner disclosed by the invention, the problem that a product cannot go on normally running when the circuit is abnormal due to the fact that the control parameters of the power factor correction circuit cannot be adjusted adaptively in the prior art is solved.

The invention discloses a luminous device, which comprises the following parts: base, first metal layer, at least one luminous element and insulating layer, wherein the first metal layer lies on the base; the insulating layer is set on the first metal layer with luminous element on the insulating layer.

The invention discloses a water quality monitoring, analyzing and processing system based on big data analysis. The system comprises an underground water monitoring area division module, a monitoringpoint arrangement module, a monitoring point sampling module, a manual input module, a standard database, a monitoring point parameter acquisition module, a water quality parameter analysis module, asoil parameter analysis module, a management server, a regional underground water flow rate acquisition module, a regional underground water content statistics module and a display terminal. Accordingto the invention, water quality parameters of underground water and soil parameters around the underground water are comprehensively detected, and the detected water quality parameters and soil parameters are analyzed in combination with the water quality parameter analysis module and the soil parameter analysis module, so that underground water quality comprehensive pollution coefficients corresponding to all water level depths are subjected to statistics, the defect that an existing groundwater quality monitoring method cannot accurately reflect the comprehensive pollution condition of groundwater is overcome, the groundwater monitoring efficiency and accuracy are improved, and the groundwater quality detection requirement is met.

The invention discloses a rotary locking quick joint. The rotary locking quick joint comprises a joint body; a connecting cavity matched with a pipe is arranged in the joint body; a sealing ring accommodating cavity is formed above the connecting cavity; a rubber sealing ring is arranged in the sealing ring accommodating cavity, and sleeves the pipe; the inner wall of the rubber sealing ring formssealing with the outer wall of the pipe, and the outer wall forms sealing with the inner wall of the sealing ring accommodating cavity; an external thread is arranged on the outer wall of the end part of the joint body, and is screwed with a locking hand wheel; a clamping piece is assembled on the locking hand wheel; clamping elastic pieces are peripherally distributed at the lower part of the clamping piece; convex heads are arranged at the lower ends of the clamping elastic pieces; and the convex heads are matched with step surfaces in the locking hand wheel. The rotary locking quick jointhas the following advantages: the structure is simple; during connecting, the locking hand wheel is tightly screwed, so that the rubber sealing ring is pressed by the clamping pieces to guarantee thesealing reliability; and during assembling, the locking hand wheel is loosened, and the sealing of the rubber sealing ring is damaged by the clamping pieces, so that the pipe can be easily pulled out,and connection and disassembly are both convenient.

The invention discloses a safety protection method of the software integrity of a cryptographic machine, and relates to the technical field of information safety codes. The safety protection method of the software integrity of the cryptographic machine is characterized by comprising the first step of generating check codes of the software integrity, wherein production personnel send a generation instruction of the check codes of the software integrity to the cryptographic machine through an external management interface, the cryptographic machine transmits byte streams of all software codes, firmware and property files inside the cryptographic machine to a safety storage, and the safety storage carries out check code calculation on the input byte streams to obtain the check codes of the software integrity; the second step of checking the software integrity, wherein the cryptographic machine is started, the cryptographic machine transmits the byte streams of all software codes, the firmware and the property files inside the cryptographic machine to the safety storage for check code calculation, the safety storage judges whether the newly calculated check codes of the software integrity and the check codes, on the safety storage, of the software integrity are uniform or not, if yes, the cryptographic machine starts to work, and if not, the cryptographic machine stops starting.

The embodiment of the invention provides a method and a device for processing system crash. The method comprises the following steps: the system starts to perform a crash processing flow after system crash; in the performing process of the crash processing flow, whether the crash processing flow is performed correctly is judged according to a preset policy; if the crash processing flow is performed correctly, a dog feeding operation is performed on a watchdog so that the crash processing flow can be completed; if the crash processing flow is not performed correctly, the watch dog is triggered to reset the system so that the performing of the crash processing flow can be terminated. According to the method for processing system crash, when the crash processing flow is performed correctly, the crash processing flow can be performed completely; when the crash processing flow is not performed correctly, the watchdog is triggered to reset the system so that the reliability of the system cannot be affected.

The invention discloses a mechanically coupled flywheel assisted composite energy storage system and a control method thereof. The system comprises a flywheel module and a compressed air energy storage module. The flywheel module is connected to a rotating disc through a continuously variable transmission when a clutch is closed, and the rotating disc achieves pre-synchronization with the flywheelspeed by motor acceleration. The rotating disc is connected to a reciprocating compressor, the reciprocating compressor is connected to the compressed air energy storage module, and the compressed air energy storage module compensates an intermittent power supply by connecting a generator. The flywheel energy storage and the compressed air energy storage adopt a mechanically coupled parallel structure. By collecting the flywheel speed, the clutch switch and the compressed air energy storage working state are determined, and the control strategy is simple and easy to operate and achieve.

The invention relates to the field of hybrid electric vehicles, and discloses a hybrid electric vehicle low-voltage power supply system which comprises a storage battery, an engine, a controller and acurrent sensor, wherein the engine charges the storage battery, the controller is connected to the storage battery and the engine, and the current sensor is arranged at an output end of the storage battery and electrically connected to the controller and used for measuring discharge current of the storage battery. The invention further discloses a control method of the hybrid electric vehicle low-voltage power supply system. The control method includes the steps: judging whether the voltage drop rate of the storage battery is larger than a preset rate or not when the voltage of the storage battery is lower than first preset voltage; charging the storage battery by the engine when the voltage drop rate of the storage battery is larger than the preset rate. Whether the engine needs to be charged or not is judged according to the voltage and the voltage drop rate of the storage battery, the storage battery is conveniently and timely charged by the engine, under-voltage of the storage battery is avoided, and the service life of the storage battery and reliability of the hybrid electric vehicles cannot be affected.

The invention discloses an emergency stop control device, a magnetic levitation system and an emergency stop control method of the magnetic levitation system. The device comprises an emergency stop switch and a discharge control unit, wherein the emergency stop switch is used for enabling a normally-closed switch of the emergency stop switch to be in an off state and a normally-open switch of theemergency stop switch to be in an on state under the condition that an emergency stop instruction for powering off the magnetic levitation system is received so as to achieve emergency stop of the magnetic levitation system; and the discharge control unit is used for maintaining the outage of the magnetic levitation system by taking the discharge capacity of the discharge part of the magnetic levitation system as a power supply under the condition that the discharge part of the magnetic levitation system does not complete discharge after the magnetic levitation system is suddenly stopped untilthe discharge part of the magnetic levitation system completes discharge. According to the scheme, the problem that the reliability of a magnetic levitation centrifugal machine system is affected bythe reset of the emergency stop switch before the magnetic levitation centrifugal machine system is completely powered off can be solved, and the effect of improving the reliability of the magnetic levitation centrifugal machine system is achieved.

The invention relates to the technical field of heat exchange devices, in particular to a heat exchanger radiating pipe and a heat exchanger. The heat exchanger radiating pipe comprises a pipeline body and a pit part arranged on the outer wall of the pipeline body; the pit part comprises at least one pit in strip-shaped extending; and the extending directions of the pits are arranged at an acute angle or an obtuse angle with the extending direction of the pipeline body. Due to the fact that the extending directions of the pits are arranged at the acute angle or the obtuse angle with the extending direction of the pipeline body, the extending directions of the pits are avoided to be perpendicular to the extending direction of the pipeline body, then the flowing resistance of a medium can bereduced, so that the damage to a pump caused by bubbles which are caused by the high pressure loss is avoided, and the reliability of a system can not be influenced due to the fact that the working pressure of the system is increased which is caused by higher pressure loss. Moreover, the pits are in strip-shaped extending and are obliquely arranged relative to the extending direction of the pipeline body so that a vortex can be formed more easily, forming of a turbulent flow by the medium in the pipeline body is more facilitated, and therefore the heat exchange performance is improved.

The invention discloses a treatment process for a pressure-proof and corrosion-resistant pipe for a high-pressure heat exchanger. An alloy material is selected according to a requirement, wherein the alloy material comprises the following components in percentage by weight: 0.25 to 0.28 percent of C, 0.26 to 0.28 percent of Si, 1.0 to 1.2 percent of Mn, 0.020 to 0.030 percent of P, 0.7 to 0.9 percent of Al, 0.35 to 0.45 percent of Cr, 0.45 to 0.52 percent of Ni, 0.15 to 0.22 percent of Mo, 0.02 to 0.03 percent of V, 0.05 to 0.10 percent of W, 12 to 15 percent of Zn and the balance of Fe and trace impurities; in addition, a Ti-Mg alloy material with the same mass is added twice in a treatment process. According to the treatment process for the pressure-proof and corrosion-resistant pipe for the high-pressure heat exchanger, uniform alloy structure, high density and the characteristics of high mechanical compatibility and high corrosion resistance are achieved.

The invention discloses a nuclear medicine diagnosis device and a cooling method thereof. The nuclear medicine diagnosis device comprises an outer cover, a machine frame, a plurality of detector unitsand a plurality of signal processing units; a cavity is formed by the outer cover and the machine frame for containing the detector units and the signal processing units. The cooling method comprisesthe following steps that: obtaining the current temperature value of each detector unit; comparing the current temperature value of each detector unit with a preset temperature value to obtain a detector unit of which the current temperature value is greater than or equal to the preset temperature value as a high-temperature detector unit; and cooling the high-temperature detector unit. The cooling method or a disclosed cooling device has a temperature detection control capability, so that the temperature balance of each detector unit is relatively high, and the imaging performance of the nuclear medicine diagnosis device is ensured.

The invention relates to a refrigerator with a sterilization function. The refrigerator comprises a main body and two door covers and further comprises an auxiliary mechanism and a disinfection mechanism, the disinfection mechanism comprises a switch, a control panel, two connecting assemblies and two disinfection assemblies, and each disinfection assembly comprises a disinfection lamp and a connecting rod. The auxiliary mechanism comprises a fixing box, a circular ring, a fixing ring, a guiding assembly, two circulating assemblies, two rotating assemblies and a plurality of smashing assemblies. Each smashing assembly comprises a smashing rod, a first bearing and a first gear. By means of the refrigerator with the sterilization function, the function of disinfecting and sterilizing the interior of the main body, breeding of bacteria in the main body is prevented, then, the quality of stored goods is prevented from being affected, and accordingly the equipment reliability is improved. Through the auxiliary mechanism, the amount of cold air exhausted out of the main body can be reduced, the temperature in the main body is prevented from being influenced, the refrigeration effect is not influenced, and the reliability of equipment is improved.

First, the first dielectric layer is formed on the salient welding spot of the semiconductor chip. Next, the first dielectric layer is etched in order to form a contact hole and expose a part of the salient welding spot. Then, the second dielectric layer is formed on the surface outside the contact hole in the semiconductor chip. A metallization process is carried out for the bottom of the salient point in order to form a metal layer on the surface of the contact hole, and form a solder salient point on the metal layer. Finally, the procedure of laser-patching memory is completed.

The invention relates to the technical field of railway components, and discloses a hoisting device capable of avoiding stall in the hoisting process by utilizing a centrifugal force effect. The hoisting device comprises a mounting base, the top of the mounting base is fixedly connected with a fixing plate, the front face of the fixing plate is fixedly connected with an arc-shaped block, the top of the arc-shaped block is provided with a limiting groove, and a driving shaft is movably connected to the interior of the fixed plate. According to the hoisting device capable of avoiding stall in the hoisting process under the centrifugal force effect, when the stall situation occurs, a fixed contact makes contact with a movable contact under the centrifugal force effect at the moment, the driving shaft is further made to stop rotating, and therefore the effects that a pay-off shaft of the railway track hoisting device is prevented from slipping, and a steel rail is prevented from falling to hurt people are achieved. The movable contact and the fixed contact are electrically connected with an electromagnetic device so that the overall reaction speed of the device can be increased, the reaction delay of the hoisting device is reduced, and the effect of effectively avoiding the influence of the reaction delay on the reliability of the device is achieved.

The invention relates to a flaw detection mechanism and a flaw detection scanning device, a flaw detection structure is driven to move through a first moving structure, so that the flaw detection structure gets close to a workpiece, and the flaw detection structure can perform flaw detection on the workpiece. When the workpiece has a slope surface or an arc-shaped surface, a first driver is started, and a probe is transmitted through a swinging assembly, so that the probe swings on a first mounting seat, the mounting angle of the probe is changed, and one end of the probe can be aligned to the normal direction of the slope surface or the arc-shaped surface of the workpiece; therefore, the probe can perform effective flaw detection on the workpiece, the detection application range is effectively widened, and the use performance of the device is improved. Meanwhile, the first driver and the probe of the flaw detection mechanism are separated, and the first driver and the probe are in transmission through the swing assembly, so that the situation that the first driver enters water and directly drives the probe to cause driving vibration or driving electric field to interfere flaw detection is effectively avoided, and the influence on the reliability of a flaw detection result is avoided.

The invention relates to accessories for power equipment, and in particular relates to a contact box and a switch cabinet using the contact box. The contact box includes a box body and a ventilation passage which runs through the entire box body. When the box body is used, a heat dissipation hole is arranged at a position directly above the cooperation site of a moving contact and a static contact. A retaining wall is arranged on the edge, which is close to a cabinet board, of the heat dissipation hole in use. The box body is provided with a partition member corresponding to the heat dissipation hole. The partition member divides the heat dissipation hole into more than two heat dissipation channels. The switch cabinet comprises a cabinet body and the contact box. The static contact is fixedly connected in the contact box. The moving contact is cooperatively connected with the static contact in the contact box. The contact box adopting the structure has high heat dissipation efficiency, and at the same time avoids the influence of an electric field on the electrical performance of the contact box when the hole is arranged above the cooperation site of the moving contact and the static contact. When the contact box is placed in the switch cabinet, the contact box can meet the requirements of the protection level and is very practical.

The invention discloses a traveling wave tube slow wave system and a traveling wave tube comprising the same, and a traveling wave tube transceiver module. The slow wave system includes a spiral line,a first port used for inputting a signal to be amplified, a second port used for outputting the amplified signal and receiving an antenna return signal, and a third port used for outputting the received signal, wherein the ports are coupled to the spiral line, and the third port is arranged between the first port and the second port and near the first port. Compared with the traveling wave tube slow wave system containing two energy transmission ports in the prior art, the traveling wave tube slow wave system provided by the invention is additionally provided with a received signal output port, the signal transmitting and receiving function of the traveling wave tube can be achieved, the cascade structure of the existing T / R module is simplified, the miniaturization of information processing equipment is promoted, and the production cost is reduced. Moreover, the influence of the performance limitation of high-power switches on the whole system is avoided, and the system performance and reliability are improved.

The invention belongs to the technical field of heat dissipation of electronic equipment and discloses a heat dissipation material for an electronic device, a preparation method, an electronic device and a heat dissipation method. The heat dissipation material comprises a middle heat storage sustained release layer and a heat dissipation layer. The middle heat storage sustained release layer comprises a pasty mixture layer and a heat dissipation film. The pasty mixture layer comprises graphite powders and paraffin powders. The mass percentage of the graphite powders is 20% to 50%. The mass percentage of the paraffin powders is 40% to 70%. The electronic device contains the heat dissipation material therein. The heat dissipation method uses the heat dissipation material. The preparation method comprises the following steps of: cutting the heat dissipation film; disposing a pasty mixture containing 20% to 50% graphite powders by mass and 40% to 70% of paraffin powders by mass on the heat curing glue of the heat dissipation film. The heat dissipation material for the electronic device, the preparation method, the electronic device and the heat dissipation method can restrict the operating temperature of the electronic chip within a certain value and achieve good user experience.

The invention relates to the technical field of hoisting equipment, in particular to a hoisted object balance alarm device. The device comprises a cross beam, a main lifting lug is integrally formed at the gravity center of the outer wall of the top of the cross beam, end blocks are installed at the two ends of the cross beam through bolts, auxiliary lifting lugs are integrally formed on the outerwalls of the tops of the end blocks, the cross beam is sleeved with two sliding frames, a pressure sensor is installed on the outer wall of the top of each sliding frame through bolts, a connecting plate is installed on the outer wall of the bottom of each pressure sensor through bolts and located between the pressure sensor and the cross beam, and a controller is installed on the outer wall of the bottom of the cross beam through bolts. The hoisted object balance alarm device has the beneficial effects that the pressure sensors and the alarm are arranged, the pressure sensors are arranged onthe two sliding frames, and when the pressures borne by the two pressure sensors are different, the controller can control the alarm to give an alarm, so that an operator is reminded to place goods in a balanced mode, and the goods are prevented from falling off or damaging hoisting equipment.

The invention relates to a method for chemically plating metal on a copper substrate, a printed circuit board and a wafer prepared by the method. The method for chemically plating metal on the coppersubstrate comprises the following steps: oil removal, micro-etching, preimpregnation, activation and chemical metal plating; and the surface temperature of the printed circuit board being reduced to below 20 DEG C before the step of activation. According to the method, diffusion coating phenomenon is effectively prevented on the basis of not changing the formula of a bath solution in each step inan existing process.

The invention relates to the technical field of false tooth machining equipment and discloses a pure titanium casting machine with a positioning function for false tooth machining. The pure titanium casting machine comprises a pure titanium casting machine main body, wherein a supporting plate is fixedly connected to the lower surface of the pure titanium casting machine main body; universal balls are fixedly connected to the lower surface of the supporting plate; a bottom plate is fixedly connected to the lower surfaces of the universal balls; an outer cover and a U-shaped plate are fixedly connected to the upper surface of the bottom plate; the U-shaped plate is located in the outer cover; a rectangular through hole is formed in the side wall of the outer cover; and a side door is hinged to the hole wall of the rectangular through hole. The pure titanium casting machine with the positioning function for false tooth machining has the horizontal positioning function, the situation that the reliability of false tooth machining is affected due to shaking of the pure titanium casting machine can be avoided, the pure titanium casting machine further has the functions of automatic false tooth grinding and polishing and dust treatment, time and labor are saved in the false tooth machining process, the false tooth machining efficiency is improved, and the labor intensity of workers is also reduced.

The present invention provides a heat dissipation system and projection equipment, the heat dissipation system includes a casing with an opening area, an electronic device arranged in the casing, and the opening area arranged in the casing, wherein the heat dissipation system is close to the opening area A baffle is provided for protection, the electronic device is arranged on the side of the baffle away from the opening area, and the baffle prevents flammable substances from passing through the The open area drains. By setting the baffle, it is possible to prevent the foreign matter generated by the high-power electronic device from flying out of the opening area of ​​the casing, thereby igniting the support surface or objects placed adjacent to the device, causing a fire hazard, and at the same time preventing foreign matter from entering the interior of the projection device While affecting the reliability of the product, the present invention can greatly improve the safety and reliability of the projection device.

The invention discloses an ultrafast automatic sampling switching system which comprises a cabinet and a centralized control screen, a negative pressure fan is longitudinally arranged at the bottom end of the inner wall of the cabinet on the rear side of an isolation cabinet door, and the inner wall of the cabinet above the negative pressure fan is divided into a left analysis chamber and a right sampling chamber. A first sampling box, a second sampling box and a sampler are sequentially and longitudinally arranged on the inner wall of the right sampling chamber on the outer side of the gas receiving guide plate from bottom to top, a purging device is vertically arranged on the inner wall of the right sampling chamber above the sampler, and PN2PURGE, TOC ON-LINE, IC ON-LINE and Ultra-fast AMCON-LINE are sequentially and fixedly arranged on the inner wall of the left analysis chamber from bottom to top. The centralized control screen is transversely arranged in the middle of the upper surface of the isolation cabinet door at one end of the cabinet away from the observation window. According to the present invention, the Ultra-fast AMC ON-LINE is adopted to increase the sample collection data amount while the overall reaction time of the analysis instrument equipment is shortened, and the purging device is arranged on the inner wall of the right sampling chamber above the sampler so that the influence on the reliability of the subsequent detection due to the residue after the sample switching can be effectively avoided, and the use effect is good.

The invention discloses an emergency stop control device, a magnetic levitation system and an emergency stop control method thereof. The device comprises: an emergency stop switch and a discharge control unit; In the case of an emergency stop command, the normally closed switch of the emergency stop switch is in the open state, and the normally open switch of the emergency stop switch is in the closed state to realize the emergency stop of the magnetic levitation system; the discharge control unit is used in the magnetic levitation system After the emergency stop and the discharge part of the magnetic levitation system has not completed the discharge, the discharge of the discharge part of the magnetic levitation system is used as the power supply to maintain the power supply of the magnetic levitation system until the discharge part of the magnetic levitation system completes the discharge. The solution of the present invention can solve the problem that the reliability of the magnetic levitation centrifuge system is affected by resetting the emergency stop switch before the magnetic levitation centrifuge system is completely powered off, and achieves the effect of improving the reliability of the magnetic levitation centrifuge system.

The invention discloses an engine box body positioning structure which comprises a supporting base and a shielding plate. A positioning base is connected to the supporting base. A locking rod is connected to the positioning base. A locking rod elastic part is also arranged on the positioning base. A shielding extension section is further arranged at the side end of the shielding plate. A locking groove capable of being matched with a locking block is formed in the bottom end of the shielding plate. The locking groove is formed in the manner that an opening is small and an inner cavity is large. The locking block can penetrate through the opening of the locking groove to be located in the inner cavity of the locking groove. The locking block can rotate in the inner cavity of the locking groove. According to the structure, by arranging the locking rod and the shielding plate, the shielding plate can be locked to the top end of a shell box body only by moving and rotating the locking rod,in this way, the shell box body can be positioned, the shielding plate can also be positioned, and the situation that the shell box body and the shielding plate move accidentally is avoided. By meansof cooperation between a magnetic part and a metal part, positioning stability can be further improved.

The invention provides a light and simple potato segmental harvester micro-potato floating crushing device, which includes a mounting frame, a feeding device, a crushing device and a floating detection device, and is characterized in that the crushing device includes a ground wheel shaft, a ground wheel, and a drive shaft , extrusion wheel, crushing knife and drive motor, and the ground wheel and extrusion wheel are located in the same plane, and the lower generatrix of the extrusion wheel is 50-100mm higher than the lower generatrix of the ground wheel, and more "J" shaped crushing The knife is installed on the hub of the extrusion wheel, and the protruding end of the driving shaft installed with the extrusion wheel passes through the floating arm I and is connected with the output shaft of the driving motor installed on the floating arm I through a coupling, and the floating detection device The end of the cylinder rod of the hydraulic cylinder is hinged and fixed on the floating arm II, the end of the telescopic rod of the linear displacement sensor is hinged on the floating arm II, and is close to the hinge of the cylinder rod of the hydraulic cylinder on the floating arm II. The invention can automatically pulverize micro-potatoes, and has smooth obstacle avoidance, efficient pulverization, strong practicability and good working reliability.

The invention provides a micro miscellaneous potato floating crushing device for a light and simple potato segmented harvester. The micro miscellaneous potato floating crushing device comprises a mounting rack, a feeding device, a crushing device and a floating detection device, and is characterized in that the crushing device comprises a land wheel shaft, a land wheel, a driving shaft, an extrusion wheel, crushing knives and a driving motor; the land wheel and the extrusion wheel are located in the same plane; a lower bus of the extrusion wheel is 50-100 mm higher than the lower bus of the land wheel; a plurality of J-shaped crushing knives are mounted on a hub of the extrusion wheel; the extending end of a driving shaft provided with the extrusion wheel after penetrating through a floating arm I is connected with an output shaft of a driving motor mounted on the floating arm I through a coupler; the end of a cylinder rod of a hydraulic cylinder of the floating detection device is hinged and fixed to a floating arm II; and the end of a telescopic rod of a linear displacement sensor is hinged to the floating arm II and is close to the hinged position of the cylinder rod of the hydraulic cylinder on the floating arm II. The micro miscellaneous potato floating crushing device for the light and simple potato segmented harvester can automatically crush micro miscellaneous potatoes,and is smooth in obstacle avoidance, efficient in crushing, high in practicability and good in working reliability.