443results about How to "Guaranteed service life" patented technology

The invention discloses a charging control method for a low-voltage storage battery of an electric vehicle. The electric vehicle comprises a high-voltage power supply, the low-voltage storage battery and a power supply converter. The power supply converter is connected with the high-voltage power supply and the low-voltage storage battery. The charging control method comprises the following steps that current operating modes of the electric vehicle are detected by a whole vehicle controller of the electric vehicle, wherein the operating modes comprise the driving mode and the parking mode; if the electric vehicle is in the parking mode, the whole vehicle controller obtains electric quantity information of the low-voltage storage battery at preset time intervals after the high-voltage power supply stops high voltage output; and when the electric quantity of the low-voltage storage battery is lower than a charging threshold value lower limit, the whole vehicle controller controls start-up of the power supply converter to convert high voltage electricity into low voltage electricity in order to charge the low-voltage storage battery. The charging control method for the low-voltage storage battery can lower a power-lack risk which occurs in the low-voltage storage battery when the electric vehicle is in the parking mode. The invention further discloses the electric vehicle.

The invention provides an intelligent electronic lock. The lock comprises a lock cylinder, a lock bulb, a key, a control unit, a power supply, a key switch and an electric control billiard, wherein a mechanical billiard is arranged in a lockhole of the lock cylinder; the lock bulb is provided with a key hole; the control unit is connected with a key code reading module and a storage module; the electric control billiard is arranged in the lockhole of the lock cylinder; a groove is reserved on the lateral surface of the lock bulb; a digital chip is arranged in the key; and when the key is inserted into the lockhole and the control unit is electrified, the key can unlock the lock normally if codes are the same, and the key cannot unlock the lock if information of codes is different. The lock combines the advantages of a mechanical lock structure and an electronic structure, can ensure low electricity consumption working of the electronic lock by adopting an electrifying mode, can use batteries to supply electricity, and can ensure service life. Therefore, the lock has wide application range, and can be arranged in various houses, buildings and household places conveniently to replace conventional locks. Users can use the lock conveniently without changing existing habits.

The invention provides a soybean milk making method of a soybean milk machine so as to solve the problems existing in the making process of an existing soybean milk machine, particularly, the problems that noise is too large and the making cycle is too long. A smashing cover is arranged on a machine head of the soybean milk machine. The soybean milk making method is characterized by comprising the steps that firstly, a mixture of materials and water is heated to boil, the materials are softened and float to the liquid surface, and part of the materials are blocked and limited in the smashing cover; then, the boiling state is kept for a preset time, the materials are smashed with a smashing cutter in the kept boiling state, and at the moment, the materials are gradually taken into the smashing cover to be smashed under flowing of slurry; then, the materials are continuously smashed with the smashing cutter; finally, the mixture of the materials and the water continues to be heated so that the materials can be thoroughly cooked. According to the method, the slurry is heated to boil firstly, the boiling state is kept for a certain time, and the materials are smashed in the state, so that soybean milk making noise is greatly reduced, the soybean milk making cycle is shortened, and energy is saved.

The invention discloses a target tracking method for a wireless multimedia sensor network, which is mainly used for solving the target tracking problem in the wireless multimedia sensor network. The method comprises three nodes, namely a common sensor node, a sensor node provided with a GPS module and an image sensor node with adjustable direction. Due to lower cost and lower energy consumption, the common sensor node can be greatly thrown into the network and takes charge of abnormality detection, target positioning and data transmission; the sensor node provided with the GPS module has the main functions of acquiring the position of a node and serving as the common sensor node; and the image sensor node has the main function of target identification. Target tracking is finished by mutual cooperation of the three nodes, and calculation and storage of a target track are finished by a base station, so the cost is saved and the service life of the network is prolonged.

The invention relates to a temperature regulator comprising a valve provided with an accommodating cavity inside and a thermal element installed in the accommodating cavity. The accommodating cavity is communicated with outside through at least three joints, namely a first joint, a second joint and a third joint; the thermal element comprises an element body and a push rod slidably mounted at one end of the element body, one end of the push rod is exposed out of the element body, and the push rod is provided with a limiting portion; when the fluid temperature is lower, even though sensitive material further shrinks, the limiting portion of the push rod is pressed, the push rod is prevented from extending into a hole of the element body, so that a rubber pipe in the element body can be protected effectively, and the service life of the product can be guaranteed.

The invention provides a disposal method for greasy blockage of an air conditioner system, a disposal device for greasy blockage of the air conditioner system, and an air conditioner, wherein a refrigerant used by the air conditioner system is a flammable refrigerant. The method comprises the following steps: when detecting that greasy blockage occurs to the air conditioner system in preset work state, recording the current opening of an electronic expansion valve; adjusting the opening of the electronic expansion valve to preset opening from the current opening, wherein the preset opening is greater than the current opening; counting the accumulated operation time of the electronic expansion valve working in the preset opening; and when the accumulated operation time reaches the preset time, detecting whether greasy blockage occurs to the air conditioner system, and performing corresponding disposal according to the detection result. By adopting the technical scheme, the problem of greasy blockage can be timely and effectively solved so that the air conditioner system can recover to normal operation, and therefore, the phenomenon of capability attenuation caused by greasy blockage of the air conditioner can be avoided, and the service life of a compressor and the air conditioner system can be ensured.

The invention discloses a condensation judgment method of an air conditioner. The condensation judgment method of the air conditioner comprises the following steps of obtaining the fresh air temperature, indoor temperature and fresh air humidity in real time or regularly when it is detected that the air conditioner is in a fresh air mode; calculating the fresh air dew-point temperature according to the fresh air temperature and the fresh air humidity; judging whether the fresh air dew-point temperature is greater than the indoor temperature or not; and when the fresh air dew-point temperatureis greater than the indoor temperature, determining that the air conditioner is condensed, and adjusting the running parameters of the air conditioner to make the fresh air dew-point temperature be smaller than the indoor temperature, specifically, the running parameters comprise the opening degree of a first air quantity adjusting device and/or the opening degree of a second air quantity adjusting device. The invention further discloses the air conditioner and a computer readable storage medium. According to the air conditioner, the phenomenon of condensation can be found in time, and the service life of the air conditioner is ensured.

The invention relates to a production method of an aluminum section frame for a high-speed rail sound barrier. With aluminum bars as a main material, the novel aluminum alloy section frame is produced by the steps of mold designing, burdening, smelting, extruding, discharging, manual aging, powder spraying as well as assembling and forming. According to the invention, the aluminum alloy frame adopts a 45-degree design and is waterproof; and the aluminum alloy frame the surface of which is subjected to electrostatic powder spray treatment has no changes, such as aging, falloff, color fading and the like in terms of hydrochloric acid resistance, corrosion resistance, weather resistance, and the like after being subjected to experiments for 1000h; and the service life of an assembly is ensured.

The invention relates to a control system for a power battery relay of new energy vehicles. A pre-charge relay is connected in series with a pre-charge resistor, and then connected in parallel with atotal positive relay, and connected to a positive pole of a power battery; a total negative relay is connected to a negative pole of the power battery, and a voltmeter in a first voltage measuring device measures the voltage across the power battery; a voltmeter in a second voltage measuring device measures the voltage between the total positive relay and the total negative relay; the power battery outputs voltage outward, and the range of the voltage value depends on the battery design value and the current battery state, and a vehicle load is connected between the output voltages. An advantage of the present invention is that the system can properly respond to requests for closing and opening relays of a vehicle, and when the relay itself fails, the system is capable of identifying faults and reporting them under certain operating conditions.

The invention provides a domestic charging pile with functions of automatically removing a charging plug and performing power-off protection. The domestic charging pile comprises a box body and a charging line storage box arranged at the lower end of the box body; a switch for controlling a charging socket to be powered off or powered on is arranged on the end part of the charging socket in the box body; a telescopic connector apparatus is arranged in the middle part of the box body, and the telescopic connector apparatus triggers and presses the switch to enable the turned-on switched to be fixedly connected with the charging socket; and a control unit is connected with the telescopic connector apparatus, and by inputting charging parameters to a control panel, the control unit controls the charging socket to charge an electric vehicle. By enabling the telescopic connector apparatus to trigger and press the switch arranged on the charging socket, the charging plug is powered on and fixedly connected with the telescopic connector apparatus at the same time, so that the power-on or power-off of the charging socket can be ensured when the charging pile is charged or not charged, thereby avoiding adverse safety factors caused by electric leakage of the charging pile or electric shock of a child caused by playing and the like, and achieving high safety; and after the electric vehicle is fully charged, the charging socket and the charging plug can be separated automatically, so that the service life of the charging battery of the electric vehicle is ensured.

A composite solar cell back membrane comprises a weather-proof layer, adhesive layers, basic materials and a bonding layer. The adhesive layers are formed by coating compositions on the surfaces of the basic materials through solidification, wherein the compositions comprise the following components, by weight, 100-200 parts of adhesives, 8-18 parts of curing agents, 8-35 parts of polyhedral oligomeric silsesquioxane and 200-390 parts of solvents, the polyhedral oligomeric silsesquioxane (POSS) is the POSS containing hydroxyl or the POSS containing isocyanate groups, and the thickness of the adhesive layers ranges from 5 microns to 15 microns. The composite solar cell back membrane has good humidity and heat resistance and flame resistance no edge shrinking phenomenon exists, and the service life of solar cell modules is guaranteed.

The invention relates to a mechanism for controlling a mold closing sequence of a mold, which is used for controlling the mold closing sequence, the mechanism comprises a cover plate, a lock block, a lock block seat, a sliding-tongue seat used for connecting with a mold solid plate, a bolt used for connecting with a mold solid seat plate and a lifting pin used for connecting with a mold movable template. A first slot used for being inserted by one end of the lifting pin and a second slot used for being inserted by one end of the bolt is provided on the sliding-tongue seat, the lock block seat is connected between the cover plate and the sliding-tongue seat, in an installing hole opened by the lock block on the lock block seat, a first spring is provided between the lock block and the cover plate, the lock block is placed against the lifting pin and the slot, a first pushing shoulder used for pushing the lock block is provided at one end of the lifting pin, and a step used for pressing the lock block is provided at one end of the slot. When the mold is closed by the mold, the mechanism of the invention can control the mold closing sequence of the mold, so that the abandonment of the mold can be effectively avoided.

The invention discloses a novel air-conditioning system, comprising a compressor, a condenser, an expansion valve, an evaporator, an air-conditioning water tank, an air-conditioning pump and a cooling tower. The evaporator is provided with an evaporator coil and an evaporator coil outer passage. The cooling tower comprises a water curtain wall and a reservoir. The reservoir is provided with common antifreeze solution and simultaneously the reservoir is provided with a water outlet to form a common antifreeze solution circulating system through an anti-corrosion pipeline, an anti-corrosion pump and a water inlet at the upper part of the water curtain wall. The air-conditioning system further comprises an exchanger coil for carrying out heat exchange with common antifreeze solution out of the exchanger coil. The exchanger coil is connected with a low-temperature antifreeze solution circulating system injected with low-temperature antifreeze solution through a pipeline, a primary pump and the evaporator coil outer passage. The invention is designed by combining the low ice point advantage of the low-temperature antifreeze solution and low cost advantage of the common antifreeze solution, can normally work so long so the external temperature is higher than the ice point temperature of the common antifreeze solution, and be featured with low energy consumption, convenience, practicality and wide application scope.

The invention discloses an efficient heat dissipation device for a computer mainframe structure. The device comprises a box body, a partition board is fixedly connected to the portion between the bottoms of two sides of the inner wall of the box body, and an exhaust fan, a water tank, a drying oven and a motor are fixedly connected to the bottom of the inner wall of the box body from left to right in sequence; a first bevel gear is arranged on the output shaft of the motor in a sleeving mode, a first rotating rod is rotatably connected to the right side of the bottom of the inner wall of the box body through a bearing, and a second bevel gear is arranged on the surface of the first rotating rod in a sleeving mode; the surface of the second bevel gear is meshed with that of the first bevel gear. The invention relates to the technical field of computers. According to the efficient heat dissipation device for the computer mainframe structure, continuous rotation, air jetting and cooling are conducted on a computer mainboard, the aim that a computer mainframe is subjected to all-sided cooling is achieved, it is guaranteed that the computer mainboard cannot cause abnormal use of the computer due to the overheating mainboard caused by incomplete cooling, and the actual service life of the computer mainboard is guaranteed.

The invention provides an overlaying process of a drilling tool for petroleum extraction. Primarily, an overlaying region of the drilling tool is electrically welded by an automatic control carbon dioxide welding machine by using a carbon steel welding wire; pure tungsten powder which is preheated to 200 DEG C is sprayed to an electrical welding position by a powder spraying mechanism during the electrical welding to perform facing; and finally, a tungsten carbide-containing thickening wear-resistant belt is formed by performing facing at the overlaying region of the drilling tool. By adopting the overlaying process of the drilling tool for petroleum extraction, the forming of a weld joint and the fusion depth of a welding wire and a parent metal are effectively increased, and the hardness of a welding layer is improved; and thus, the wear resistance of the drilling tool and the anti-friction quality of the drilling tool to a bushing are improved, and the service life of the drilling tool is prolonged by more than two times.

The invention discloses an efficient upright ball mill, which comprises a milling bucket, a ball mill unit and a control unit, wherein the milling bucket is fixedly arranged at the middle lower part inside a shell; the milling bucket is used for holding milling balls and milling materials to be processed; the ball mill unit is used for ball milling of the milling balls and the milling materials to be processed and comprises a motor, a milling shaft and rotary vanes; the milling shaft is connected with an output shaft of the motor; the rotary vanes are arranged on the milling shaft; the control unit is used for controlling the rotation of the ball mill unit; before the ball mill unit is stopped, the ball mill unit is controlled by the control unit to turn inversely; the rotary vanes rotate along a reverse helix direction so as to generate reverse thrust to the milling balls and the milling materials inside the milling bucket, then the rotary vanes are disassociated from the area of the milling balls and the milling materials inside the milling bucket and are suspended at the area above the milling balls and the milling materials, and consequently, starting current of the motor is safe starting current while the upright ball mill is started again.

The invention discloses a method for carrying out detection and control on ultrasonic intensity in water treatment. The method is characterized in that the output of a power amplifier in water treatment is monitored by using a system for carrying out detection and control on ultrasonic intensity in water treatment, if a detected acoustic intensity is deviated from a reference acoustic intensity, the system automatically adjusts the output power of the power amplifier, so that the value of the acoustic intensity of an ultrasonic water treatment system always remains at a preset reference value, thereby providing an automatic acoustic-intensity stabilization system for researches on ultrasonic water treatment, and ensuring the service life of an ultrasonic transducer; meanwhile, through carrying out measurement of acoustic intensity parameters, an effect that the ultrasonic transducer with different operating frequencies can carry out water treatment under the condition of a same acoustic intensity parameter, therefore, the method disclosed by the invention can be used for solving the problem that in the existing water treatment technology, factors affecting the operation of degradation can not be researched because of the lack of important parameters.

The invention discloses a movable intelligent bookshelf which includes a bookshelf body, wherein an upper accommodation tank, a middle accommodation tank and a lower accommodation tank are formed in the bookshelf body; an upper accommodation shelf, a middle accommodation shelf and a lower accommodation shelf are correspondingly arranged inside the three accommodation tanks; the rear ends of the upper accommodation shelf, the middle accommodation shelf and the lower accommodation shelf are fixedly connected with an upper connecting rod, a middle connecting rod and a lower connecting rod respectively; the rear ends of the upper connecting rod, the middle connecting rod and the lower connecting rod are fixedly connected with an upper push plate, a middle push plate and a lower push plate respectively; one end of the middle push plate is propped against a connecting plate; an avoiding through hole is formed in one side of the connecting plate; an upper clamping plate is formed on one side of the upper end of the connecting plate; a lower clamping plate is formed on one side of the lower end of the connecting plate; a lifting plate is inserted to a rear plate of the bookshelf body; a pushing cylinder is fixed on the lifting plate; the piston rod of the pushing cylinder extends inside the middle accommodation tank. According to the invention, books with different widths can be completely placed inside the bookshelf, so that damage to books is avoided, and books can be taken and placed conveniently.

The invention relates to a grid-connection and off-grid double-mode ship solar power generating system which comprises a solar cell panel, a battery charger, a solar electric management device, an alternating current distribution cabinet, a countercurrent preventing device, a photovoltaic controller, a photovoltaic inverter and a storage battery, wherein the a photovoltaic controller, the photovoltaic inverter and the storage battery are respectively in communication connection with the solar electric management device through RS485. The solar cell panel is electrically connected to the storage battery and the photovoltaic inverter through the photovoltaic controller. In the photovoltaic inverter, an off-grid mode end of the photovoltaic inverter is connected with a ship secondary load through the alternating current distribution cabinet to form an off-grid loop, and the grid-connection mode output end of the photovoltaic converter is electrically connected to a node between a main ship bus bar and a main transformer to form a grid-connection loop. The battery charger is respectively and electrically connected with a ship main distribution board and the storage battery. The countercurrent preventing device is electrically connected with nodes from the main ship bus bar to the main transformer, and is connected with the photovoltaic inverter through an RS485 communication line. The grid-connection and off-grid double-mode ship solar power generating system can ensure the stable operation of a ship power system, and can utilize solar energy to generate power and reduce fuel consumption and exhaust emission to the maximum extent.

An embodiment of the invention provides a low-power embedded system. The system comprises a first clock unit, a second clock unit, a third clock unit, a clock switching unit and a working circuit. The first clock unit is used for generating a first clock signal. The second clock unit is used for generating a second clock signal. The third clock unit is used for generating a third clock signal. The clock switching unit is used for receiving the first clock signal, the second clock signal and the third clock signal, selecting one of the first clock signal, the second clock signal and the third clock signal as a target clock signal and outputting the selected clock signal. The working circuit is used for working based on the current target clock signal output by the clock switching unit. The frequency of a system clock working in a low frequency state is gradually adjusted and improved to a target working frequency, thereby preventing the risk of overshoot of transient current of the system, and effectively ensuring the service life of a chip.

The invention provides a washing control method of an full automatic washing machine, which can further realize the intelligentization, guarantee the cleanliness of clothes and avoid the mutual coloration situation, and is high in washing efficiency and small in harm ondamage to the clothes. The method comprises the following steps of (1) utilizing a scanner of a washing machine to scan a bar code on the clothes to be washed, and utilizing a control program on a washing machine controller to automatically memorize the information on the bar code; gradually scanning the bar codes on other clothes to be washed one by one, utilizing the control program on the washing machine controller to automatically recognize and judge the scanned information and making a shuffle mixed washing choice; (2) automatically selecting the type and corresponding quantity of washing liquid which is matched with the information through the washing machine controller; (3) opening a corresponding washing liquid water inlet valve according to the selected type of the washing liquid through the washing machine controller; and (4) opening a washing water inlet valve through the washing machine controller to inject washing water into a rotary drum after the washing liquid is injected, and washing.

The invention discloses an overheat protection method and circuit and a mobile terminal. The mobile terminal comprises a processor, a power consumption circuit, the overheat protection circuit and a battery, wherein the overheat protection circuit comprises a switching circuit and a sensor circuit for collecting a real-time temperature of the power consumption circuit; and the overheat protection method comprises the steps of: obtaining the real-time temperature of the power consumption circuit of the mobile terminal through the sensor circuit; controlling on or off of the switching circuit according to the real-time temperature to control the working state of the power consumption circuit; obtaining on or off switching frequency of the switching circuit within a preset cycle; and when the switching frequency exceeds a preset threshold, generating alarm information of prompting a failure of the power consumption circuit. The overheat protection circuit disclosed by the invention can control the working state according to the real-time temperature of the power consumption circuit, and control the power consumption circuit to stop working when the temperature is over-high, so that the problem of a device failure caused by an over-high temperature is solved; and the service lifetime of the circuit is prolonged.

The invention provides a detection method for oil blockage of an air conditioning system, a detection device for oil blockage of an air conditioning system, and an air-conditioner, wherein a refrigerant used for the air conditioning system is a flammable refrigerant; the method comprises: judging whether the air conditioning system is in a preset working state; after determining that the air conditioning system is in the preset working state, acquiring a temperature parameter of the air conditioning system every first preset time; and determining whether oil blockage happens in the air conditioning system according to the temperature parameter. According to the technical solution, whether oil blockage happens in the air conditioning system using the flammable refrigerant can be determined immediately and effectively, and then a phenomenon of capacity attenuation of the air conditioning system due to oil blockage can be avoided, and therefore, the service life of a compressor and the service life of the air conditioning system can be guaranteed; meanwhile, the flexibility of use of the air conditioning system is improved and the experience of a user is enhanced.

The invention relates to an inter-plate connector assembly and a sub-plate plug thereof. The sub-plate plug comprises a shell and a plug part shell, wherein the plug part shell can forwards and backwards float relative to the shell by a first elastic element, a plug contact element unit is arranged in the plug part shell, the front end of the plug contact element unit is a plug-in end, a part shell baffle block is arranged on the plug part shell, a shell baffle block is arranged on the shell along a left-right direction in a guide moving way and is used for matching with the part shell baffle block in a stop way so as to limit the plug part shell from moving backwards, a baffle block bearing part is arranged on the shell baffle block and is used for being ejected by a socket shell, so that the shell baffle block moves rightwards or leftwards and the shell baffle block gets out of the way of the part shell baffle block in a vertical direction. By the sub-plate plug, the problems that the blocking and the unlocking of the plug part shell are achieved by swinging of an elastic push rod in the prior art to cause that the blocking force of the elastic push rod is limited and the mechanical service lifetime is relatively short are solved.

The invention particularly provides a printer with the temperature detection and efficient heat dissipation functions. The printer comprises a printer shell, and a temperature detector is arranged inside the printer shell and is in series connection with the interior of a power circuit of the printer; a temperature display screen, an indicating lamp and a control switch are arranged on the upper surface of the printer shell; and the temperature display screen, the indicating lamp and the control switch are in series connection with the temperature detector. Heat dissipating nets are arranged on the two side faces of the printer shell, and small fans are arranged at the positions, directly facing the heat dissipating nets, inside the printer shell. A controller is arranged inside the printer shell; and one end of a circuit of the controller is connected with the temperature detector, and the other end of the circuit of the controller is connected with the small fans. A temperature detection and heat dissipation device is arranged inside the printer, and the temperature inside the printer is detected. When the temperature inside the printer is too high, the heat dissipation device is started or the printer is temporarily out of service. The printing quality and the service life of the printer are ensured.

The invention relates to a cone height measuring device. The main technical characteristic is that the cone height measuring device comprises a dial indicator display, an elastic bush, a knurled screw, a positioning sleeve, a screw plug, a pressure spring, a main body, a measuring bar, a locking screw, a standard body, a handle, a positioning plate and a fastening screw, wherein the dial indicator display is inserted into the elastic bush; the measuring head of the dial indicator display is fit with the tail end part of the measuring bar; and the head part of the measuring bar adopts a cylindrical and short cone surface structure. The cone height measuring device adopts a comparative measurement method which comprises the following steps: calibrating the dial indicator display by using the standard body into a zero position; and measuring the cone surface of a tested cone-shaped part, wherein the dial indicator display displays an error reading value deviate from the zero position, and the sum of the height of the standard cone surface of the standard body and the error reading value deviate from the zero position is the height of the cone surface of the tested cone part. The cone height measuring device has the characteristics of simple and compact structure, high generality, convenience and quickness in measurement, low manufacturing and using cost and the like.

The invention provides a rotary knob structure, a rotating angle determining method and device, and a household electric appliance. The rotary knob structure comprises an induction rotary knob which is disposed on the upper surface of a panel of the household electric appliance, wherein the interior of the rotary knob is provided with a metal induction layer; a plurality of induction rings which are arranged on the lower surface of the panel corresponding to the metal induction layer in a manner that each two induction rings are adjacent to each other; and an angle determining circuit board which is connected to the plurality of induction rings and is used for obtaining the induction parameters of the plurality of induction rings and determining the current rotating angle of the induction rotary knob according to the induction parameters of the plurality of induction rings. Through the technical scheme of the invention, the structure can prolong the service life of the induction rotary knob and other related parts, can accurately determine the rotating angle of the rotary knob, and achieves the more accurate control of the household electric appliance.

The invention discloses a detection method of a corrugated plate. In the invention, the relevant data is obtained by a series of insulation performance analysis experiments, and an empirical value is compared by data process and data analysis, so as to obtain reasonable and scientific insulation performance evaluation of epoxy glass fabric corrugate plates. A detection method under a simulated reality condition is provided for checking the mechanical performance of the corrugated plate according to the wave peak size change of the corrugated plate. The detection method mainly aims at the mechanical stress and strain change of the epoxy glass fabric corrugate plates, so that the service life of coils and the normal running of motors are ensured.

Disclosed is a polishing process and device for a 3D arc surface of a ceramic member. The polishing process includes: A, clamping a product needing arc surface polishing by a clamp, enabling a to-be-polished face of the product to be exposed outside, and mounting a polishing belt on a machine capable of adjusting horizontal and vertical positions of the belt; B, adjusting positions of the polishing belt and the to-be-polished face of the product to enable the polishing belt to compress the to-be-polished face of the product and to completely contact with an arc surface of the to-be-polished face of the product; C, spraying a polishing liquid into a contact face of the product and the polishing belt, and controlling the polishing belt to rotate to polish the to-be-polished face of the product. The device comprises the clamp and the polishing belt. By using the polishing process and device, processing requirements on surface coarseness of ceramic structural member polishing can be met, over-polishing of holes in the arc surface is avoided, the process is simple, defects like grinding wheel lines and tool marks on the arc surface can be well removed, processing yield can be increased effectively, and production cost can be saved.

The invention discloses a mining vehicle transmission control system. The mining vehicle transmission control system comprises a whole vehicle gas tank, and a first two-position three-way valve communicated with the whole vehicle gas tank, wherein the first two-position three-way valve is communicated with a secondary tank cylinder through a two-position five-way valve; and two gas outlets of the two-position five-way valve are respectively communicated with gas chambers at the two sides of a piston in the secondary tank cylinder for controlling a motion of the secondary tank piston to finish a gear shifting action. The mining vehicle transmission control system provides a control gas way to a 8-gear mining vehicle transmission, guarantees an overgear of the transmission to be only switched with a direct gear through the control of the two-position three-way valve, the two-position five-way valve and a pre-selection valve, effectively controls the secondary tank use frequency, prevents the gear-crossing operation of a secondary tank, reduces the fault rate of a secondary tank synchronizer, guarantees the service life of the secondary tank synchronizer, effectively prevents wrong operations or rule-breaking operations, and guarantees no gear disordering of the transmission.