76results about How to "Cooperate fully" patented technology

There is provided a method comprising: determining a phase difference between at least two antenna units of a distributed antenna system on the basis of at least one pilot signal received from at least one of a plurality of antenna units; and transmitting phase correction commands to a common base station of the plurality of antenna units on the basis of the determined phase difference in order to synchronize carrier phases between at least two antenna units of the distributed antenna system.

The invention provides an engine suspension rubber material and a preparation method thereof. The engine suspension rubber material comprises the following raw materials by weight: 100 parts of smoke sheet rubber, 3-5 parts of zinc oxide, 1.5-3 parts of stearic acid, 1.0-1.5 parts of an anti-aging agent 77PD, 0.8-2 parts of an anti-aging agent S-TMQ, 1.0-2.0 parts of an anti-aging agent MB, 2.0-5.0 parts of paraffin, 20-60 parts of carbon black, 5-10 parts of modified white carbon black R300, 3-10 parts of naphthenic oil T3367, 0.5-1 part of a dispersant 42M, 1.5-3 parts of a silane coupling agent, 2.0-2.5 parts of sulfur, 0.8-1.5 parts of an accelerator CBS, 0.2-0.5 part of an accelerator DM, 0.2-0.5 part of an anti-vulcanization reductant PK900. Through the efficient protective effect of the anti-aging agent 77PD and anti-aging agent S-TMQ, the protective synergistic effect of the anti-aging agent MB, the softening plasticization performance of the high viscosity and high flash point naphthenic oil T3367, as well as simultaneous use of a common vulcanization system and the anti-vulcanization reductant PK900, the dynamic fatigue durability and heat resistance of the engine suspension rubber material are improved, and the engine suspension colloid prepared from the engine suspension rubber material has good high temperature durability.

The invention relates to concrete containing electrolytic manganese slag, a preparation method thereof, and a concrete pavement and relates to the field of materials. The concrete is prepared by mixing raw materials including, by weight, 130-200 parts of grading electrolytic manganese slag calcined material; 13-20 parts of cement, 5-10 parts of silica fume, 10-15 parts of fly ash, 0.5-0.8 parts ofa dispersant, 0.7-1 part of a water reducing agent, and 10-15 parts of water; the grading electrolytic manganese slag calcined material is prepared by calcining electrolytic manganese slag at 800-1000 DEG C, and crushing and grading the product. The concrete has good anti-freezing performance and high strength, is suitable for pavement, can effectively save sand and stone, and improves utilization rate of the electrolytic manganese slag. The preparation method is simple, is convenient to carry out and is free of pollution, and can effectively increase performance of the concrete containing electrolytic manganese slag. Meanwhile, by applying the concrete containing electrolytic manganese slag to a concrete pavement, the pavement has good anti-freezing performance and high strength and is long in service life.

The invention provides damping rubber and a preparation method thereof, an engine suspension and an automobile. The damping rubber is prepared from the following raw materials in parts by weight: 70 to 95 parts of Thai ribbed smoked sheet rubber RSS3, 5 to 30 parts of butadiene rubber BR9000, 3 to 5 parts of zinc oxide, 0.5 to 3 parts of stearic acid, 1.0 to 3.0 parts of anti-aging agent 6PPD, 0.8to 2 parts of anti-aging agent S-TMQ, 1.0 to 2.0 parts of anti-aging agent MB, 2.0 to 5.0 parts of paraffin, 10 to 60 parts of carbon black, 5 to 10 parts of modified white carbon black R300, 3 to 10parts of paraffin oil P2291, 0.5 to 1 part of dispersant 42M, 1.5 to 3 parts of silane coupling agent, 0 to 2.5 parts of sulfur, 0 to 1.5 parts of accelerator CBS, 0 to 0.5 part of accelerator DM, 0-0.6 part of accelerator TBTD-70, 0-2.0 parts of accelerator DTDM-80, 0-5.0 parts of DCP, and 0-3.0 parts of TAIC. The damping rubber has better low temperature resistance by the combination of the butadiene rubber, carbon black and modified white carbon black R300, and the protection and synergism of the various anti-aging agents and the use of the paraffin oil P2291 with high viscosity, high flash point and low pour point.

The invention provides a sealing strip butt-joint thin slice rubber material and a preparation method thereof, and a sealing strip butt-joint thin slice rubber sheet processing method and processing device. According to the sealing strip butt-joint thin slice rubber material and the preparation method thereof, various raw material components are screened and compounded, a rubber one-section mixing process is adopted, and the sealing strip butt-joint thin slice rubber material for preparing a sealing strip butt-joint thin slice rubber sheet having excellent properties by an extruding process can be obtained. Compared with a conventional sealing strip butt-joint thin slice rubber sheet processing method, the sealing strip butt-joint thin slice rubber sheet processing method can significantly improve the processing efficiency and the product quality, solves the storage problems of a product in a conventional process, and is beneficial to wide application.

The invention discloses a precision casting smelting furnace lining material and relates to the technical field of precision casting. The precision casting smelting furnace lining material is prepared from the following raw materials: 60-80 parts of quartz sand, 20-30 parts of quartz powder, 6-8 parts of boric acid, 1-3 parts of water glass, 10-20 parts of refractory mortar, 3-5 parts of silicon carbide, 1-3 parts of chromium concentrate, 2-4 parts of ceramic fiber, 3-5 parts of mineral fiber and an appropriate amount of water. The invention has the following beneficial effects: the design is novel; the adopted formula of raw materials is scientific and reasonable; sufficient matching of the raw materials is ensured; the prepared furnace lining material has an excellent performance, is fire-proof and wear-resistant and realizes a remarkable using effect; meanwhile, in moulding, through multi-layer processing, the fastening property of the furnace lining is ensured, and the promotion and application are facilitated.

The invention relates to the field of agricultural seedling growth technologies, and concretely relates to a seedling growth apparatus for an agricultural greenhouse. The apparatus comprises a seedling growth box, a fixing plate, seedling growth expansion plates, a power device and a water supply device; the fixing plate is arranged in the seedling growth box, the seedling growth expansion platesand the water supply device are arranged at the upper end of the fixing plate, the power device is arranged at the lower end of the fixing plate, the fixing plate is provided with three strip-shaped through holes, one of the strip-shaped through holes is arranged along the diagonal line of the fixing plate, and a sleeve is arranged in a square array manner, and is uniformly arranged on the upper end surface of the fixing plate by supporting members. A seedling growth cylinder adopts a manner of expanding and folding the square array to solve the problems of blocking and breaking caused by a small mutual distance, the expansion distance is controlled to adapt to flowers and other crops having large seedlings, the special arrangement of the seedling growth cylinder can solve the problem of serious white pollution, and alternating control in the morning and evening and uniform replenishment of water are carried out to solve the problem of the growth rate, so the method achieves the sufficient and effective growth effect of the seedlings on the premise of protecting the seedlings and the environment.

The invention discloses a pressure machine, which comprises a base, a gland, a rack, a gear shaft, a handle rod and a ball oil cup, wherein the gland is arranged on the base; the rack passes through the gland on the base; one end of the rack is matched with a groove on the base; the gear shaft is arranged on the base; the handle rod is connected to the gear shaft; the ball oil cup is arranged on the base; the ball oil cup is used for adding lubricating oil between the gear shaft and the base so as to effectively prevent impurities such as dust entering a matching position between the rack shaft and the base. According to the pressure machine, the lubricating performance between the gear shaft and the base can be improved, and impurities such as dust can be effectively prevented from entering the matching position between the rack shaft and the base; the rack and the gland are fixed firmly, so that the rack can be fully matched with the base, axial play of the gear shaft can be effectively prevented, and connection is firmer.

The invention discloses an additive manufacturing thin-wall rotating member anti-deformation device and an application method thereof. According to the characteristics that the cross-sectional size ofan additive manufacturing thin-wall rotating member changes continuously along with the change of height and the size of the thin-wall rotating member is larger, the size of a support frame further changes continuously, that is, a fixed screw rod is used as a vertical support frame in the vertical direction, and the outer diameters of transverse support rings change continuously along with the change of the size of the rotating member; and the outer diameter of the support ring at the vertical center position is the largest, and the outer diameters of the support rings are gradually reduced upward or downward, and the outer walls of the support rings are always in contact with the inner wall of the rotating member to play a supporting role. According to the additive manufacturing thin-wall rotating member anti-deformation device, the size of the device can be stably controlled within a range of manufacturing blanks, so that the printing yield is improved; and the device is an assemblypart, and can be disassembled integrally or in parts, so that cyclic utilization is convenient.

The invention discloses a dry electric precipitator with a metal mesh anode plate. The dry electric precipitator comprises a shell, the anode plate and an corona line, the anode plate and the corona line are arranged in the shell, the anode plate and the corona line are arranged alternately and in parallel, and an electric field is formed between the anode plate and the corona line; and the anodeplate comprises a frame and a metal mesh, the metal mesh is fixed in the frame, and the void rate of the metal mesh is 8-20%. The dry electric precipitator has the advantages that through the metal mesh, the lateral scour force of the ion wind on the anode plate is weakened, the production of secondary raising dust is reduced, the pressure of the overall device is lowered below 250 Pa, the equipment resistance is reduced, the fan design requirements and operating energy consumption are reduced simultaneously, and the fact that the outlet particle concentration is below 10 mg / m3 can be achieved; and the current density is significantly reduced, the total current required for the whole anode plate is reduced, the energy saving effect is obvious, the weight of the anode plate is also reduced,the total weight of the whole electric precipitator is greatly reduced, the overall steel mass, installation, manufacture and the like of the electric precipitator are reduced, and the cost is greatly reduced.

The invention provides a magnetic disk, a stirring cutter assembly and a food processor. The magnetic disk comprises: a support, wherein the support comprises a bottom support, a plurality of bafflesare arranged in the circumferential direction of the support at intervals, a positioning column is arranged in the middle of the support, and a partition plate is arranged between the side wall of thepositioning column and each baffle; a plurality of magnetic parts, which are clamped between the two adjacent partition plates, wherein bosses extending into the space between the two adjacent partition plates are arranged on the outer surfaces of the magnetic parts, and the outer surfaces of the magnetic parts can abut against at least one baffle; and a cover plate, which is mounted at one end,far away from the bottom support, of the positioning column. The bottom support, the baffles, the positioning columns and the partition plates are of an integrated structure. According to the scheme,a part of the outer surfaces of the magnetic parts can be exposed through the gap between the two baffles, so the blocking of the support on a magnetic field is reduced and the acting force of the disk is increased. The magnetic parts can be partially embedded into the outer side wall of the magnetic disk through the bosses, so that when the two magnetic disks are mounted in a sleeving manner, theradial distance between the inner and outer magnetic parts can be reduced to enhance the torque transmission.

The invention relates to an oil level gauge and a speed reducer comprising the same, and belongs to the technical field of lubricating oil sealing equipment. The oil level gauge comprises a body, a top base on the upper portion of the body and a bottom base on the lower portion of the body. First through holes communicated with the body are formed inside the top base and the bottom base respectively. A channel is formed inside the bottom base and is throughout the bottom base, a screwed plug is arranged at one end of the channel, a second fastener is arranged at the other end of the channel, and a return stop device is arranged in the middle of the channel and comprises a guide rod and an oil plug. An elastic element is arranged on the surface of the guide rod, one end of the oil plug is connected with the elastic element, and an ejector rod is arranged at the other end of the oil plug. The oil level gauge can effectively reduce oil waste and improve operation safety; the elastic element pushes the oil plug to move so that the oil plug can be fully matched with the channel to isolate oil inside the body from oil outside the body; the oil level gauge is convenient and fast to operate, capable of effectively improving working efficiency, high in oil level display accuracy and high in applicability.

The invention provides a profile lower section design method, belongs to the field of tire profile design, and can solve the technical problems that the overturning torque of an anti-explosion tire suitable for a common profile is increased, and the steady-state performance of the tire is poor. According to the technical scheme, the method comprises the following steps that 1, an initial tire contour model is established according to a selected tire model; 2, according to the tire outer diameter D and the rim sum diameter d, the section height SH = 1 / 2 (D-d) is obtained, the parameters of the contour lower section height LSH and the contour upper section height USH are adjusted, and LSH is made to be larger than USH; 3, the contour fitting width RW is adjusted according to the standard rim width Rm; 4, according to the relation between the contour fitting width RW and the contour section width SW, the contour section width SW is adjusted; and step 5, constructing a function relationship of contour parameters according to the test data in the steps 2-4, and verifying through a formula until a contour model meeting the requirements is obtained. The method can be applied to the contour of the self-supporting tire of the full-series passenger car.

The invention discloses a charging method of a charging pile with a garage. The charging method includes the following steps that (1), an electric automobile is driven into a garage unit of the charging pile with the garage; (2), a charging interface slides along a long round rod, so that the charging interface slides to the position close to the electric automobile; and (3), the charging interface and a charging joint of the electric automobile are arranged in cooperation, and the electric automobile starts to be charged. By the adoption of the charging method, the situation that a fuel automobile occupies the charging position of the electric automobile can be prevented so that the electric automobile can be effectively charged.

The invention relates to a high-voltage battery system easy to replace, and the rapid replacement of a high-voltage battery in an electric car can be realized by coordinating with a shared battery base station. The high-voltage battery system comprises a detachable high-voltage battery module and a leakage protection module, wherein the detachable high-voltage battery module is arranged in the electric car and used for supplying power to the electric car; and the leakage protection module is arranged in the electric car and connected with the detachable high-voltage battery module, and the leakage protection module is used for ensuring the safety of operators in the process of replacing high-voltage battery. Compared with the prior art, the high-voltage battery system easy to replace has the advantages that replacement is simple, the safety performance is high and time is saved.

The invention relates to a bank transaction integration system. The bank transaction integration system comprises an order generating system, a check module and a check system, wherein the order generating system is used for receiving loaning application data of clients, comparing the received loaning application data to data in a loaned product memory, and generating order information which includes client identifications and identifications corresponding to loaned products; the check module is used for inquiring unprocessed order information from an order data memory, and checking the unprocessed order information via the check system; and the check system is used for acquiring the loaning application data of the clients and information corresponding to the loaned products according to the order information, updating order information states in the order data memory and the loaning application data in a loaning application memory after checking the loaning application data of the clients and the information corresponding to the loaned products, and finally returning check results back to client terminals. The bank transaction integration system can reasonably manage and control loaning application risks.

The invention discloses a formula of a potato nutrient solution. The formula comprises the following components in parts by weight: 395-440mg / L of urea, 560-620mg / L of diammonium phosphate, 410-470mg / L of monopotassium phosphate, 660-720mg / L of potassium sulfate, 480-530mg / L of magnesium sulfate, 5-9mg / L of ethylenediaminetetraacetic acid ferric sodium salt, 1.5-3mg / L of manganese sulfate, 1.2-2mg / L of zinc sulfate, 2-2.8mg / L of boric acid, 0.1-0.4mg / L of copper sulfate and 0.1-0.35mg / L of sodium molybdate. The formula disclosed by the invention is reasonable, urea, diammonium phosphate, monopotassium phosphate, potassium sulfate, magnesium sulfate, ethylenediaminetetraacetic acid ferric sodium salt, manganese sulfate, zinc sulfate, boric acid, copper sulfate and sodium molybdate are comprehensively utilized, the utilization degrees of the components of the nutrient solution are increased, the nutrient components of the formula are sufficiently matched, and the formula is applicable togrowth of potatoes; due to mutual matching of the components of the formula, nutrients required by growth of the potatoes are provided; by adjusting the ratio of the components of the nutrient solution, the growth requirements of the potatoes can be very well met, and the formula is very well applicable to growth of the potatoes.

The invention belongs to the technical field of plunger pump manufacturing, and particularly relates to stacking equipment for cast plunger pumps. The stacking equipment comprises a base, wherein lifting mechanisms are installed on the lower surface of the base, a first sliding plate is arranged on the base in a sliding fit mode, a second sliding plate is in sliding fit with the first sliding plate, a limiting sleeve is vertically and fixedly installed on the upper surface of the second sliding plate, a supporting column is vertically in sliding fit with the interior of the second sliding plate, a buffer mechanism is mounted in the limiting sleeve, a horizontal top plate is fixedly mounted at the top of the supporting column; and a clamping mechanism is mounted on the top plate. Accordingto the stacking equipment, in the process of clamping the plunger pump through a clamping mechanism, a supporting rod can freely stretch out and draw back in a sealing barrel according to the shape ofthe surface of the plunger pump, so that the irregular surface of the plunger pump is supported, and stable clamping of the plunger pump is achieved; and the plunger pump can slowly descend through the buffer mechanism, so that the position of the plunger pump can be finely adjusted, and a plunger pump shell is fully matched with the inner wall of a storage box.

The invention belongs to the technical field of building decoration materials, and relates to a floor and wallboard button type lock catch structure. The floor and wallboard button type lock catch structure is of an axisymmetric epsilon type structure and comprises tongue-and-groove top end edge angles, an inclined plane structure, a tongue-and-groove bottom edge angle, a middle axis position anda concave structure or a convex structure, the symmetrically-arranged inner-groove tongue-and-groove top end edge angles are arc chamfers, the inclined plane structure is an internal inclination planestructure with an angle of 1 degree to 10 degrees, the tongue-and-groove bottom edge angle is an arc chamfer, the concave structure or the convex structure is further arranged at the middle axis position or the middle parts of the two sides of the inclined plane structure, the tongue-and-groove top end edge angles, the inclined plane structure, the tongue-and-groove bottom edge angle and the concave structure or the convex structure form a button type lock catch space matched with a floor and wallboard tenon. Through the sufficient cooperation of a sunken and protruding structure formed by alock catch tenon and a tongue-and-groove, the floor and wallboard button type lock catch structure is difficult to slide; and a large clearance is arranged at the bottom of the tenon, and the deformation damage of floors caused by temperature and humidity change is prevented.

The patent relates to the field of auxiliary equipment of molds, and discloses a special device for preheating a mold. The device comprises a base seat, wherein a lifting mechanism is vertically arranged on the base seat; a movable rod is connected to the upper end of the lifting mechanism in a movable manner; a heating sleeve is connected to the movable rod in a sliding manner; a power supply isconnected to the heating sleeve; the lifting mechanism comprises a motor; worms are connected to an output shaft of the motor; the worms mesh with a worm wheel; the worm wheel vertically meshes with alead screw at a central hole; the upper end of the lead screw is fixedly connected with one end of the movable rod; a baffle plate for preventing the worm wheel from moving axially is arranged at a joint of the worm wheel and the worm; the heating sleeve comprises two layers of arc-shaped heating nets which are arranged up and down; heat preservation layers are fixedly arranged on the heating nets; the same sliding sleeve is connected to one end of each of the two layers of the heating nets in a hinged manner; and the sliding sleeve is connected with the movable rod in a sleeved manner. Thispatent is intended to provide the special device for preheating the mold with simple structure and heat preservation effect.

The invention discloses an injection moulding method for touch pens, in order to guarantee the moulding quality, the touch pen can be achieved through the injection moulding of three sets of dies, placing the inner pen units in sequence into the main spray dies. the tough pen is injected though the sequence of sequence end, intermediate section and the fastening end, which improves the quality oftouch pen injection. íí

The invention discloses a raw material blending device for glass processing. The raw material blending device comprises a crate; a feed inlet is arranged in the middle of the upper surface of the crate, a stirring chamber is formed in the inner upper surface of the crate, and an opening corresponding to the feed inlet is formed in the upper surface of the stirring chamber; a stirring barrel support is arranged on the inner rear side face of the stirring chamber, and an upper surface opening of the stirring barrel support corresponds to the upper surface opening of the stirring chamber; a sideslider of a stirring barrel is slidably connected with the interior of the stirring barrel support through a sliding groove; a side inlet of the stirring barrel corresponds to the upper surface inletof the stirring barrel support; the middle of the right side surface of the stirring barrel is connected with the left end of a rotating shaft. The raw material blending device has the advantages thatthe operation is simple, raw materials can be fully and evenly blended, moisture and iron in the raw materials are removed, and the quality of the raw materials is improved.

The invention discloses a preparation process of traditional Chinese medicine pills for treating urinary calculi. The process comprises the following steps: crushing lygodium japonicum, endothelium corneum gigeriae galli, rhizoma alismatis, agilawood, amber, semen plantaginis, radix curcumae, poria cocos, platycodon grandiflorum and radix cyathulae, performing sieving to obtain a mixed medicine powder, mixing lumbricus, scouring rush, chingma abutilon seed and liquorice, adding water, performing decocting for three times, combining decoctions, performing filtering to obtain filtrate, cooling the filtrate, adding potassium nitrate, performing uniform stirring to completely dissolve the potassium nitrate, performing filtering, heating and concentrating to obtain a concentrated solution, putting the mixed medicine powder, talcum powder, cane sugar and the concentrated solution into pill production equipment, and performing uniform mixing to prepare pills, thereby obtaining the traditionalChinese medicine pills for treating urinary calculi. The traditional Chinese medicine pills are prepared from sixteen Chinese herbal medicines and the cane sugar, treats urinary calculi by utilizingthe comprehensive synergistic effect of the sixteen Chinese herbal medicines, has small side effects on a human body, does not need to be decocted by a patient, and has the characteristics of simple and convenient treatment method, low price, remarkable curative effect and no pain in the treatment process.

The invention discloses a pumping agent for mass concrete. The pumping agent for mass concrete is prepared from the following raw materials in parts by weight: 120-150 parts of a polycarboxylate-typewater reducer, 60-75 parts of a polycarboxylate-type collapse retaining agent, 30-40 parts of sodium gluconate, 10-20 parts of maltodextrin, 10-15 parts of protein polysaccharide, 1-5 parts of lacticacid, 0.5-1 part of p-hydroxyanisole, 2.0-3.0 parts of sodium lignin sulfonate, 10-15 parts of sodium carboxymethylcellulose and 740-760 parts of water which are fully stirred and matched in a stirring device. The pumping agent disclosed by the invention can be suitable for pumping mass concrete in various temperature conditions, in particular high temperatures in summer, and also has the advantages of being high in water reducing rate, good in collapse retaining property, low in gas content and the like, and can improve the peaceability of the concrete; according to the structural design of the stirring device, various raw materials which are matched are fully mixed, so that the matching efficiency is increased, and excellent performance of the pumping agent is ensured.

The invention discloses a pulse current-assisted high-temperature stretching device and method for a high-temperature alloy material. The pulse current-assisted high-temperature stretching device comprises an electronic universal testing machine, a pulse power supply and a hanging type stretching clamp, wherein the electronic universal testing machine comprises an upper cross beam and a lower cross beam, the upper cross beam and the lower cross beam are arranged in parallel, the two ends of the hanging type stretching clamp are detachably connected with the upper cross beam and the lower cross beam respectively, the pulse power source is electrically connected with the hanging type stretching clamp, the hanging type stretching clamp is sleeved with a heating furnace, a cooling water circulation device is arranged on the hanging type stretching clamp. and the cooling water circulation device is positioned above the heating furnace. According to the invention, the device is easy and convenient to disassemble and assemble, high in safety, good in insulativity, comprehensive in function and capable of being continuously used.

The invention discloses an operative multidirectional adjustable supporting and expanding device and a using method thereof. The operative multidirectional adjustable supporting and expanding device comprises a stable fixing frame, a telescopic expanding and supporting frame and an adjustable supporting, moving and separating plate. The method is applied to the operative multidirectional adjustable supporting and expanding device. The telescopic expanding and supporting frame is arranged at the outer side of the stable fixing frame, the adjustable supporting, moving and separating plate is arranged at the upper portion of the stable fixing frame, the stable fixing frame is formed by combinedly connecting an annular supporting frame a and an annular supporting frame b, the annular supporting frame a and the annular supporting frame b are provided with a semi-opened step type arc connecting through groove, a mixed multifunctional connecting hole and a connecting clamping platform respectively, and the annular supporting frame a is provided with a detachable slope fixing and adjusting platform and an adjusting long through hole. The operative direction adjustable supporting and expanding device is tight in structural connection, convenient and safe to operate and high in stability, different supporting and expanding angles needed in the operation process can all be achieved, the operation time is saved, and an operation is easily and successfully conducted.

The invention discloses assembly equipment convenient to assemble a plastic bearing. A conveying belt is arranged on a frame; fixed clamping plates are arranged on two sides of the conveying belt; guide racks are arranged at the bottoms of the fixed clamping plates; support frames are arranged on the sides, far from the guide racks, of the two sets of fixed clamping plates; guide vertical rods areslidingly connected to the sides, near the support frames, of one set of fixed clamping plates; the ends, far from the fixed clamping plates, of the vertical guide rods are slidingly connected with connecting sleeves; the sides, far from the support frames, of the connecting sleeves are connected with push rods through welding; and the ends, far from the connecting sleeves, of the push rods are connected with inner ring positioning movable devices. In the assembly process, an outer ring of the bearing is clamped by using positioning grooves on the fixed clamping plates, and an inner ring of the bearing is shifted away and pushed back to an initial position through positioning rotary heads by using movement of the guide vertical rods; and the axis collinear relation of the positioning rotary heads and the positioning grooves is used for guaranteeing coaxiality of the inner and outer rings of the bearing after ball filling, so that the assembly precision and quality of the plastic bearing are guaranteed.

The invention relates to a composition for treating a burn due to hot liquid or fire. The composition comprises the following ingredients in parts by weight: 60-80 parts of conyza canadensis, 10-20 parts of rhubarb, 40-50 parts of raw colza oil, 5-10 parts of willow bark, 10-20 parts of rabbit hair ash, 10-15 parts of privet leaves, 10-20 parts of aloes, 3-5 parts of cactus and 2-3 parts of lavenders. The conyza canadensis serves as the major ingredient and combined with the other ingredients; the composition rapidly stops bleeding, alleviates a pain, reduces exudate, promotes cell regeneration, quickly heals a wound surface, and reduces burn scars; and no scar is left basically after the composition is used for treating the mild and moderate burn. According to a preparation method of thecomposition for treating the burn due to the hot liquid or the fire, a preparation technology is adjusted according to the ingredients of the composition; effects of the ingredients are fully exertedand matched; and the composition for treating the burn due to the hot liquid or the fire with an excellent treatment effect is prepared.