140results about How to "Guaranteed capacity" patented technology

The invention relates to the technical field of batteries, and discloses a battery shell and a battery. The battery case includes: a case having an opening; the cover plate seals the opening to form a containing cavity, the cover plate comprises a cover plate body and a folded edge arranged on the edge of the cover plate body, the folded edge extends in the direction away from the containing cavity and is welded to the shell, a welding area is formed at the welding position of the folded edge and the shell, and in the extending direction of the folded edge, the cover plate body is located on the side, close to the containing cavity, of the welding area. In the direction perpendicular to the upper surface of the cover plate body, the distance between the side, close to the containing cavity, of the welding area and the upper surface of the cover plate body is h, the distance between the side, away from the containing cavity, of the folded edge and the side, close to the containing cavity, of the cover plate body is H, and h / H is larger than or equal to 0.17 and smaller than or equal to 0.5. The cover plate can play a buffering role, and the cover plate is prevented from being separated from the shell during thermal runaway; meanwhile, the overall height of the cover plate can be controlled, and the internal space of the shell is ensured, so that the energy density of the single battery is ensured.

The utility model discloses a surface cleaning device with a sewage collection function, which belongs to the technical field of cleaning equipment and comprises a machine body and a ground brush, a sewage suction port is arranged on the ground brush, a sewage barrel is arranged on the machine body and comprises a barrel body and a barrel cover, the barrel body is provided with a sewage inlet pipe, and the barrel cover is provided with an exhaust passage. The sewage barrel is arranged on the front side or the rear side of the machine body and has an inclined state and a lying state along with the machine body, a separation part is arranged in the sewage barrel and divides an inner cavity of the sewage barrel into a first cavity and a second cavity which are communicated with each other, an upper end opening of the sewage inlet pipe extends into the first cavity, and an inlet of the exhaust channel is formed in the cavity wall of the second cavity; the barrel cover is provided with two sets of liquid level detection pieces extending downwards into the barrel body, and the two sets of liquid level detection pieces are each provided with a detection part located in the first cavity. And the positions of the detection parts on the two groups of liquid level detection pieces are reasonably arranged, so that the liquid level detection pieces are convenient to clean while the working performance of the sewage suction fan is ensured.

The invention discloses a double-line type automatic welding line for New Jersey guardrails and an automatic welding process of the double-line type automatic welding line. The automatic welding line comprises a reinforcement cage fixing support, a walking track and a welding robot. A walking track and a welding robot are arranged on the two sides of the reinforcement cage fixing support correspondingly, and the welding robot is provided with a welding head assembly and is movably arranged on the walking track; the reinforcement cage fixing support is provided with a positioning area for positioning and placing a New Jersey guardrail reinforcement cage, a first positioning structure and a second positioning structure are arranged on the positioning area, the first positioning structure is used for positioning a plurality of stirrups of the New Jersey guardrail reinforcement cage, and the second positioning structure is used for positioning a plurality of transverse ribs. The welding robot double-line advancing mode is adopted, welding spots on the two sides of the XinJexi guardrail reinforcement cage are automatically welded, and the welding efficiency is improved; the high-precision customized clamping groove batten and the pneumatic jaw pliers are used for positioning the stirrup and the horizontal rib through laser cutting, fixing is conducted according to preset positions, the precision error is small, and the welding quality is uniform and high.

The invention discloses an efficient and energy-saving purification method for a copper electrolyte. The purification method comprises the following steps: performing MVR (Mechanical Vapor Recompression) concentration; cooling and crystallizing; filtering and separating; electrodeposition copper and impurity removal by a circulation method; freezing and crystallizing; performing centrifugal separation; according to the method, in the MVR concentration process, a high-energy-efficiency steam compressor is used for compressing secondary steam generated by evaporation of the copper electrolyte, the enthalpy of the secondary steam is improved, and the secondary steam with improved heat energy is pumped into a plate heat exchanger to exchange heat with the copper electrolyte, so that the existing heat energy of the secondary steam is recycled; therefore, the consumption of external steam can be reduced to realize evaporation and concentration of the copper electrolyte to produce crude copper sulfate; in the circulation method electrodeposition copper removal and impurity removal process, the crystallization mother liquor is supplemented into the impurity removal circulation liquid, so that copper ions can be kept in an efficient impurity removal concentration range, and the removal efficiency of impurities such as arsenic is improved; a refrigerator is adopted to cool the electrolyte after electrodeposition copper removal and impurity removal, and then a centrifugal machine is adopted to realize solid-liquid separation of nickel sulfate crystals.

The invention discloses an electrolyte and a lithium battery, and additives of the electrolyte comprise a compound as shown in a structural formula 1, a cyclic sulfate compound and a sultone compound, the proportions of the compound as shown in the structural formula 1, the cyclic sulfate compound and the sultone compound in the electrolyte are awt%, bwt% and cwt% respectively, 2.5 b-a is more than or equal to-0.5 and less than or equal to 4, and 2a + c is more than or equal to 5 and less than or equal to 8. In the design, the compound shown in the structural formula 1 can form stable interfacial films on the surfaces of the positive electrode and the negative electrode, oxidative decomposition of an electrolyte at high temperature is reduced, consumption of the electrolyte is inhibited, the high-temperature cycle performance is improved, and the cyclic sulfate compound can reduce film-forming impedance and improve gram volume exertion; the sultone compound can improve the high-temperature storage performance. Therefore, the high-temperature cycle and high-temperature nesting performance of the lithium battery is effectively improved by adjusting the ratio of the compound shown in the structural formula 1, the cyclic sulfate compound and the sultone compound.

The utility model discloses a battery piece printing device and a battery piece processing system, relates to the technical field of solar batteries, and aims to solve the problems that when a battery piece is manually taken, a printing production line needs to be paused, so that the productivity loss is caused, and the processing efficiency is reduced. The battery piece printing equipment comprises a transmission mechanism, a jacking mechanism, a moving and taking mechanism and a printing mechanism used for printing battery pieces. The conveying mechanism is located on one side of the printing mechanism and used for conveying the printed battery pieces and the defective battery pieces. The jacking mechanism has a first position state and a second position state relative to the conveying mechanism, and in the first position state, the jacking face of the jacking mechanism is lower than the conveying face of the conveying mechanism. And in the second position state, the jacking face of the jacking mechanism is higher than the printed battery pieces located on the conveying face of the conveying mechanism, meanwhile, the conveying mechanism can convey the printed battery pieces, and the jacking mechanism is used for jacking the defective battery pieces located on the conveying mechanism. And the moving and taking mechanism is used for moving the defective battery piece on the jacking mechanism away.

The invention relates to the field of new energy batteries, in particular to a positive pole piece, a preparation method thereof and a battery, the positive pole piece comprises a current collector, a first positive active material layer arranged on the surface of the current collector, and a second positive active material layer arranged on the surface of one side, far away from the current collector, of the first positive active material layer; wherein the first positive electrode active material layer comprises a first positive electrode active material and an acidic additive, and the second positive electrode active material layer comprises a second positive electrode active material and a carbon dioxide absorbent; the first positive electrode active material includes a layered oxide, and the second positive electrode active material includes a polyanionic compound. According to the positive pole piece disclosed by the invention, battery cell bulging caused by more produced gas can be avoided, and the cycle performance of the battery is favorably improved.

The invention relates to the technical field of glass bottle processing, and discloses a light-weight glass bottle small-opening pressing and blowing device and technological method.The light-weight glass bottle small-opening pressing and blowing device comprises a power mechanism, the power mechanism further comprises a mounting frame, an electric telescopic rod is fixedly connected to the top of the mounting frame, and before use, it is guaranteed that the electric telescopic rod extends outwards to the outermost periphery; a glass solution with required plasticity is poured inwards through a through hole in the top of the glass bottle mold, the bottle neck space of the glass bottle mold and the internal space of the molding sliding plate form a containing environment, the solution is temporarily stored in the containing space, and the electric telescopic rod drives the extrusion rod to slide downwards, so that the air outlet outer pipe is inserted into the containing environment; and finally, external high-pressure gas is injected into the blank through the gas conveying pipe and the gas outlet outer pipe, so that the blank is expanded and attached to the interior of the glass bottle mold, the pressing and blowing process of the glass bottle is completed, the blank mold is combined with a forming mold, the unnecessary process of overturning during equipment production is omitted, and blank deformation is avoided.

The utility model relates to the technical field of hairdressing tools, and provides a multifunctional massage comb which comprises a shell, a vibration assembly, an atomization assembly and a negative ion assembly. The shell comprises a comb head section, the comb head section is provided with a first containing cavity, a vibration assembly, an atomization assembly and a negative ion assembly are arranged in the first containing cavity along the first central axis of the shell, and comb teeth are arranged at the bottom of the comb head section. According to the multifunctional massage comb, the vibration assembly enables the comb teeth to press acupuncture points, and scalp blood circulation is promoted; the atomization assembly generates mist, so that the effects of softening, maintaining, aromatherapy and the like can be achieved on the hair and the scalp, the hair and the scalp are not prone to being pulled, and damage to the hair and the scalp is reduced; the anion assembly can generate anions to neutralize static electricity of hair, so that the hair is smoother and easy to comb; meanwhile, the vibration assembly, the atomization assembly and the negative ion assembly are arranged along the first central axis of the shell, so that the internal space of the shell is compact in layout, and the utilization rate is high.

The invention discloses a key self-learning method and system and driving equipment, and relates to the technical field of electronic equipment control. The method comprises the following steps: sending a key self-learning instruction; controlling the key to be self-learned to send out a first high-frequency signal carrying a preset identifier; high-frequency signals are collected according to a preset sampling period; analyzing the collected high-frequency signal and detecting whether the high-frequency signal carries a preset identifier; if yes, the detected high-frequency signal is marked as a second high-frequency signal, a first key ID carried by the second high-frequency signal is recognized, and a first low-frequency signal is sent out; controlling the key to be self-learned to receive the first low-frequency signal and send out a third high-frequency signal; and receiving the third high-frequency signal and judging whether the third high-frequency signal is matched with the second high-frequency signal, and if so, storing the first key ID. By means of the method, the high-frequency signal sent by the key to be learned can be effectively distinguished from other high-frequency interference signals, interference is reduced, and it is ensured that the key self-learning process is smoothly carried out.

The utility model discloses a cover type conjoined furnace for annealing thin materials, which comprises a furnace body, two heating cavities are arranged in the furnace body, a furnace seat is arranged on the bottom surface of the furnace body and at the positions of the two heating cavities, a heating inner cover extending into the heating cavities is arranged on the furnace seat, a fan is arranged in the furnace seat, a plurality of convection plates are arranged in the heating inner cover, and the convection plates are arranged in the heating inner cover. The side wall of the furnace body is provided with a plurality of heating spray guns extending into the heating cavity, the plurality of heating spray guns are communicated through an annular pipe, the top of the side wall of the furnace body is provided with a heat exchanger, and the heat exchanger is communicated with the heating cavity through a gas conveying pipe; according to the cover type connected furnace for annealing the thin material, the furnace body is provided with the two heating cavities, and the heating inner covers are arranged in the two heating cavities, so that the productivity can be kept, the stacking layer number of material coils in the heating inner covers can be reduced, and the pressure borne by the material coils located on the lower portions of the heating inner covers is reduced; and the situation that a material roll located on the lower portion of the heating inner cover is pressed too much and adheres to the tape is avoided.

The utility model relates to the technical field of living appliances, and discloses a storage basket which comprises a plurality of containing units. Each containing unit comprises a frame body and a fastener, when the storage basket is used, the clamping frames are matched with the notches of the containing grooves, the multiple containing units are used in an overlapped mode, the using space of the storage basket is increased, the occupied ground plane is reduced, each containing unit can be used independently, and the storage basket is very convenient to use. When the storage basket is idle, each containing unit can be folded firstly by rotating the side plates, and then the multiple containing units are stacked, so that on the premise that the capacity is guaranteed, occupied space is reduced when the storage basket is idle.

The invention discloses an energy storage system and a voltage balance control method thereof, and belongs to the technical field of energy storage. The energy storage system comprises at least two battery clusters, each battery cluster comprises at least two battery packs and DCDC converters thereof, the battery packs and the DCDC converters are in one-to-one correspondence, the input end of each DCDC converter in each battery cluster is connected with one battery pack, and the output end of each DCDC converter in each battery cluster is connected with the DCDC converters of the same battery cluster and other battery clusters in parallel. The system can solve the problems that in the prior art, when battery clusters are combined, circulation is likely to be generated due to voltage imbalance, and the capacity of the battery clusters is affected.

The utility model provides a kind of in-out boat structure and coating equipment, wherein the in-out boat structure includes lifting drive device, for driving at least two translation drive devices synchronous lifting movement;Translation drive device, for driving the corresponding translation movement piece of each translation drive device synchronous reciprocating translation movement;At least two boat moving assemblies, respectively installed on corresponding translation movement piece, the corresponding support paddle of at least two boat moving assemblies is respectively used to move at least two carriers boat into and out of at least two reaction cavities.The in-out boat structure provided by the utility model can move at least two carriers boat into and out of each group of at least two reaction cavities in the height direction of furnace body synchronously layer by layer, shorten the length of reaction cavity and narrow it under the premise of not reducing production capacity, shorten the cantilever length of support paddle of in-out boat structure adaptively, improve the rigidity of cantilever structure, reduce the scratching of carrier boat caused by cantilever deformation and shaking and the failure rate of coating equipment, and improve the working stability of coating equipment.

The invention relates to a preparation method of a seaweed derived alloy carbon sodium ion battery negative electrode material, and belongs to the technical field of sodium ion batteries, and the specific scheme comprises the following steps: step 1, drying cleaned seaweed leaves; 2, chopping the dried seaweed leaves, and calcining and carbonizing the chopped seaweed leaves and an activating agent; 3, washing the carbonized material with deionized water until the carbonized material is neutral, and drying to obtain a seaweed precursor; and 4, uniformly grinding the seaweed precursor and two metal salts, and reacting under microwave radiation to obtain the seaweed-derived alloy carbon sodium ion battery negative electrode material. The seaweed-derived alloy carbon prepared by the method can generate more active sites to store sodium ions, and the diffusion rate of the sodium ions is improved, so that the electrochemical performance is improved. In addition, in the synthesis process, the speed is very high, no solvent exists, and the yield is high.

The invention discloses a silica gel wire anti-adhesion method and a leading device, and the method comprises the steps: driving a to-be-treated silica gel wire to move through a driving wheel of an anti-adhesion leading device main body, and enabling the silica gel wire to pass through an immersion tank of the anti-adhesion leading device main body; 65-94 parts by mass of water, 3-20 parts by mass of hydrated magnesium silicate ultrafine powder, 0.1-2 parts by mass of an AES material, 0.1-2 parts by mass of sulfonic acid, 0.1-2 parts by mass of sodium hydroxide, 0.1-2 parts by mass of a 6501 surfactant, 0.1-2 parts by mass of an OP surfactant, 0.1-2 parts by mass of salt and 0.1-2 parts by mass of essence are mixed and stirred, an anti-adhesion solution is obtained, the stirring temperature is 80 DEG C, and the stirring time is 0.5-2 h; and putting the obtained anti-adhesion solution into an immersion tank of an anti-adhesion leading device. According to the anti-adhesion solution, the wire is led into the soaking tank to be soaked through the anti-adhesion leading device, the wire production process is not affected, the production efficiency and the productivity can be guaranteed, and the anti-adhesion solution is low in formula cost, can be suitable for anti-adhesion procedures of various silica gel products and is extremely good in applicability.

The invention belongs to the technical field of distributed energy storage, and particularly relates to a multi-target sharing operation optimization system for distributed energy storage in a power distribution network, which comprises a data acquisition module used for acquiring power distribution network data of the power distribution network, and the power distribution network data comprises data of each node of energy storage equipment; the data of each node of the energy storage equipment comprises the maximum capacity, the maximum power and the maximum charge-discharge state quantity of the energy storage equipment; a data processing module; the distributed energy storage equipment can be installed at a plurality of places such as a user side, a distributed power supply side and a power distribution side according to requirements, values of energy storage investment cost and operation cost are calculated according to the positions, and an appropriate position value is selected as the most appropriate position of the energy storage equipment according to the different values. Compared with a traditional centralized energy storage power station, the distributed energy storage system can effectively reduce the power transmission loss and improve the energy utilization efficiency due to the scattered layout.

The utility model discloses a precursor packaging container which comprises a first cavity, a second cavity, a buffer cavity, an on-off control assembly and a charging and pumping assembly. The first cavity is used for containing a liquid precursor and a solid precursor, the first cavity is provided with a first gas inlet pipe and a first exhaust pipe, and carrier gas input by the first gas inlet pipe carries the liquid precursor, then is mixed with steam of the solid precursor and is exhausted through the first exhaust pipe; a first baffle is arranged between the second cavity and the first cavity, and the second cavity supplements the liquid precursor to the first cavity through the first baffle. According to the precursor packaging container, the buffer cavity and the second cavity are matched with the inflation and extraction assembly, so that the liquid precursor can be supplemented to the first cavity from the outside, the service life of the packaging container can be prolonged, the capacity of the liquid precursor in the container is kept to provide an enough contact path for carrier gas, the concentration of the precursor carried by the carrier gas is ensured, and the packaging efficiency is improved. A stable precursor source is provided for a subsequent vapor deposition process, and the deposition film forming quality is ensured.

The utility model discloses a crossed roller retainer which comprises an inner ring, an outer ring and a plurality of isolation blocks arranged between the inner ring and the outer ring, rolling bodies are filled between the adjacent isolation blocks, and transverse limiting cambered surfaces matched with transverse rolling bodies are arranged on the left sides of the isolation blocks. A vertical limiting arc face matched with the vertical rolling body is arranged on the right side of the isolation block, and a plurality of weight reducing grooves are formed in the isolation block so that the weight of the whole crossed roller retainer can be reduced. And the transverse limiting cambered surface and the vertical limiting cambered surface are both provided with the oil guide grooves shaped like the Chinese character'wang ', so that the lubricating performance of the crossed roller retainer on the rolling body is improved. And the oil guide holes are connected between the weight reduction grooves and the oil guide grooves shaped like the Chinese character'wang 'and located at the ends of the oil guide grooves shaped like the Chinese character'wang', so that the flowability of lubricating oil in the crossed roller retainer is improved, the heating intensity of the bearing is reduced, and the service life of the whole bearing is further prolonged.

The present invention relates to a device and method for detecting material residue in a water tank of a rod line production line, the device comprising a production line formed by a plurality of guide grooves and a plurality of water tanks, a detection assembly arranged at both ends of each water tank on the production line, wireless transmitters respectively connected to the detection assembly, a wireless display screen connected to the plurality of wireless transmitters, and a control device respectively electrically connected to the detection assembly, the wireless transmitter and the wireless display screen. The present invention can drive a laser module to descend and align with the center of the guide groove through a lifting device, so that when the laser module is working, it can effectively detect whether there is any steel residue in the guide groove section of the water tank, and transmit the detection data to the wireless display screen for presentation by means of a wireless transmitter, so that the staff can open the corresponding water tank according to the detection results and clean the steel residue, without the need for the staff to open and check each water tank one by one, thus saving time and effort, reducing the time and ensuring the production capacity.

The invention discloses negative electrode slurry, a lithium ion battery and a preparation method of the lithium ion battery. The negative electrode slurry comprises the following components in parts by mass: 90-94.8 parts of a negative electrode active material; 1.9 to 2.2 parts of a negative electrode conductive agent; 0.01 to 0.05 part of a super conductive agent; 1.2 to 1.4 parts of carboxymethyl cellulose; 2 parts of a negative electrode binder; wherein the super conductive agent is carbon nano tube conductive slurry. The lithium ion battery comprises a positive plate, a negative plate, a diaphragm, electrolyte, a shell related structural member and a connecting plate, and the negative plate comprises a negative current collector and negative slurry coated on the negative current collector. According to the lithium ion battery, high-rate discharge is met, and meanwhile good cycle performance is guaranteed.

The invention provides a micro blind hole processing device for a composite copper foil, which is used for solving the problem that the uniformity of a plating layer in a hole of a composite copper foil finished product cannot be ensured due to the lack of a device capable of defoaming a base film along with a horizontal continuous processing flow of the composite copper foil in the prior art. The micro blind hole machining device for the composite copper foil comprises a line body rack, an acid leaching treatment upper groove is formed in the upper left portion of the line body rack, a conductive treatment section is arranged on the right portion of the acid leaching treatment upper groove, and gas-liquid circulation lower grooves are formed in the lower portion of the acid leaching treatment upper groove and the lower portion of the conductive treatment section correspondingly; the upper acid leaching treatment tank and the conductive treatment section are communicated with a lower gas-liquid circulation tank at the lower part of the upper acid leaching treatment tank and the conductive treatment section through pipelines, the lower gas-liquid circulation tank and the conductive treatment section are fixed on a line body rack, and the upper acid leaching treatment tank is used for removing bubbles in micro blind holes and through holes in a base membrane before copper coating of the base membrane and then removing pollutants on the surface of the base membrane through acid dissolution; and the adhesion between the copper plating layer and the base material is enhanced.

The invention discloses a double-sided film capacitor core hot-pressing process and a hot pressure detection device. The hot-pressing process comprises the following steps: S1) winding a metallized film into capacitor cores through winding equipment, and orderly arranging the capacitor cores on an epoxy resin plate; s2) putting the core and the epoxy resin plate into an upper hot pressing plate and a lower hot pressing plate, and starting hot pressing according to the temperature, time and pressure corresponding to the thickness of the core body; s3) after the side surfaces of the core body are braided, metal spraying is carried out on non-braided-tape areas on the two end surfaces; or firstly braiding and then clamping, spraying metal on the braid-free areas on the two end surfaces, standing in a 110 DEG C oven for 10 hours, and dismounting the clamp. The hot-pressing temperature and the hot-pressing time are selected according to the thickness of the core body, so that the internal temperature and the surface temperature of the core body can be ensured to be consistent as much as possible, films are tightly attached, the core body cannot be pushed to be loose when the core body is fed into a braiding machine, the percent of pass reaches 99.8%, the stability of the capacity and the pressure resistance value is ensured, and the core body can pass a type experiment; the production time can be reduced, and the production efficiency is improved.

The present invention provides a thick electrode and a manufacturing method and application thereof, wherein the active layer of the thick electrode comprises first active stripes and second active stripes arranged alternately horizontally in sequence; the particle size of the active main material in the first active stripes is smaller, but the thickness is the same as that of the second active stripes, so that the porosity of the first active stripes is lower than that of the second active stripes, and the width of the first active stripes is maintained at 5 to 20 times the width of the second active stripes. The first active stripes of the present invention are relatively wide, which ensures the high capacity and high power of the thick electrode. On this basis, the particle size of the active main material in the second active stripes is relatively large, and after roll forming, the porosity is relatively large, and it is distributed in the gap formed by the first active stripes with a relatively narrow width, which can significantly improve the infiltration rate and degree of the electrolyte with the entire active layer, and at the same time can reduce the internal resistance of the battery, thereby improving the rate performance of the thick electrode.

This utility model relates to the field of film production technology, and in particular to a film casting machine with automatic casting frame shifting and a breathable film production line. This film casting machine with automatic casting frame shifting includes a casting frame that is movable back and forth on a base; a film rolling mechanism and a film guiding mechanism are disposed on the casting frame; wherein, the film rolling mechanism includes a first roller, a second roller, and a third roller; the first roller is disposed on a first side of the second roller; the third roller is disposed on a second side of the second roller, and the first and third rollers can press against the second roller; the film guiding mechanism includes a first guide roller group and a second guide roller group; the first and second rollers roll and press a first film; the second and third rollers roll and press a second film. A first roller texture channel is formed between the first and second rollers, and a second roller texture channel is formed between the second and third rollers. The movement of the casting frame allows the extrusion head to select either the first or second roller texture channel. This design eliminates the need to disassemble the pressure rollers, resulting in shorter changeover times and helping to ensure production capacity.

The invention provides a preparation device and a preparation method of a battery cell structure. The preparation device of the battery cell structure comprises a diaphragm transmission structure and a pole piece transmission structure, the pole piece conveying structure is provided with two discharging areas respectively corresponding to a first pole piece and a second pole piece in the pole pieces, and the two discharging areas are respectively arranged on two opposite sides in the thickness direction of the diaphragm; a pole piece transferring mechanism is arranged between each discharging area and the diaphragm conveying structure, and is used for transferring and pressing the corresponding pole piece at a preset position of the diaphragm, so that first pole pieces and second pole pieces are distributed on the two sides of the diaphragm in the thickness direction in a staggered manner, and folding positions are formed between the adjacent first pole pieces and second pole pieces; and a bearing piece is arranged below the discharging end of the diaphragm conveying structure and is used for bearing the diaphragm which is at least partially compounded with the pole piece, so that the diaphragm compounded with the pole piece can be folded on the bearing piece along the folding position in a Z shape at least under the action of gravity, and the production efficiency of the battery cell structure is improved.

A submersible pump loader for a well comprises a lower support subassembly, a lower steel pipe, a lower loader seat subassembly, a middle steel pipe, a middle loader seat subassembly, an upper steel pipe and an upper support subassembly which are connected through a stud, a lower nut and an upper nut and sequentially stacked from bottom to top, and a lower thrust bearing assembly is arranged on the upper portion of the lower support subassembly through a positioning screw. An upper thrust bearing is fixed on the lower portion of the upper support subassembly through a sunk screw, a middle thrust bearing assembly I is arranged on the upper portion of the lower loader seat subassembly through a positioning screw, and a middle thrust bearing assembly II is arranged on the upper loader seat subassembly through a positioning screw. A shaft is rotatably fixed through an upper thrust bearing, a lower thrust bearing assembly, a middle thrust bearing assembly I and a middle thrust bearing assembly II, and cooling water passing holes are formed in the lower support subassembly, the lower loader seat subassembly, the upper loader seat subassembly and the upper support subassembly. According to the utility model, an external copper pipe is removed, and the defect that the water pump is easy to collide and damage in the transportation process and when the water pump goes down to a well and is hoisted is overcome.

The utility model relates to a bearing protection device of mechanical grading mill, including frame, two main motors are installed to both sides of frame, the output of two main motors installs grading wheel drive, grinding disc drive respectively, grinding disc drive and grading wheel drive connect hollow shaft and solid axle through V type belt respectively, solid axle is placed in hollow axle hole, grinding disc is installed on hollow axle, and is inside the cavity of grinding cavity, grading wheel is installed on solid axle, and is above grinding disc inside the cavity, the upper and lower end of hollow axle is provided with big bearing respectively, and is supported by big bearing, the upper and lower end of solid axle is provided with small bearing respectively, and is supported by small bearing, the outer ring of grinding disc is provided with toothed grinding ring, the cavity of grinding cavity is provided with air guide ring below, and air guide ring is below toothed grinding ring, compared with prior art, the utility model can improve the service life of bearing, reduce the wear and tear and failure risk of bearing, and further improve the effect of equipment grinding and grading.