34results about How to "Improve friction performance" patented technology

The invention relates to a ceramic product and a preparation method thereof, in particular to a preparation method of a carbon-ceramic brake disc with a composite friction layer and the carbon-ceramic brake disc, which are used for overcoming the defects that the production cost is increased and the large-scale application of the carbon-ceramic brake disc is restricted due to low material utilization rate in the manufacturing process of the carbon-ceramic brake disc. The preparation method of the carbon-ceramic brake disc with the composite friction layer sequentially comprises the following steps of preparation of the carbon-carbon composite material, rough machining, preparation of the heat conduction functional layer, preparation of the composite friction layer, ceramic treatment and finish machining. The heat conduction function layer can effectively reduce the temperature of the disc face in the braking process, the service life of calipers and other surrounding accessories is prolonged, the components of the composite friction layer are uniform and can be designed, and noise and shaking can be reduced in the braking process; in addition, the utilization rate of raw materials is improved and the production cost is reduced by using the residual stub bar. Meanwhile, the invention further discloses a carbon ceramic brake disc with the composite friction layer.

The invention discloses an internal welding device for a large steel pipe. The internal welding device comprises a welding platform, an L-shaped supporting plate is arranged on the welding platform, a conveying clamping mechanism is arranged on the welding platform, a positioning welding mechanism is arranged on the welding platform, and a deslagging supporting mechanism is arranged on the positioning welding mechanism; the conveying and clamping mechanism comprises a roller bracket, a conveying roller, a fixed supporting rod, an arc-shaped guide plate, a first universal ball and a clamping part; the clamping part is used for clamping a steel pipe; the positioning and welding mechanism comprises a motor support, a rotating motor, a driving shaft, a conveying frame, a welding part and an auxiliary part, the welding part is used for welding the joint of the two steel pipes, and the auxiliary part is used for positioning and supporting the conveying frame. The device has the beneficial effects that workers do not need to enter the steel pipe for welding, the labor intensity of the workers is reduced, the welding efficiency is improved, the welding quality is improved, the welding slag is convenient to clean, the grinding block is convenient to replace, and the dismounting and mounting efficiency is high.

The invention relates to a solid-liquid composite self-lubricating bearing with a supporting framework and a preparation method thereof.The solid-liquid composite self-lubricating bearing comprises an inner-layer supporting framework, an outer-side supporting layer, a porous-structure oil storage layer and an inner-side structural layer, the outer-side supporting layer is arranged on the outer side of the porous-structure layer in a sleeving mode, and the inner-layer supporting framework and the inner-side structural layer are arranged on the inner side of the porous-structure layer in a sleeving mode; a solid lubricant is arranged on the inner-layer supporting frame, and the inner-side structural layer is a porous structural layer. The solid embedded self-lubricating bearing has the characteristics of oil storage and self-circulation lubrication of the oil-retaining bearing, and also has the characteristics of high bearing capacity, impact resistance and the like of the solid embedded self-lubricating bearing.

The invention relates to the field of wear-resistant materials, in particular to a preparation method of a phenolic resin friction material with a reinforced fiber interface, which comprises the following steps: 1, preparation of fibers with an organic silicon modified graphene oxide reinforced interface: pre-mixing graphene oxide and an organic silicon coupling agent for reaction, dispersing in a solvent under the condition of ultrasonic waves, and drying to obtain the fibers with the reinforced fiber interface; adding reinforced fibers into the graphene mixed solution; the phenolic resin, the reinforcing fibers and the filler are fully and evenly mixed and then poured into a preheated mold, heating compression is conducted under certain pressure and temperature, curing forming is conducted after a certain time, graphene oxide not only improves the interface bonding strength, but also improves the friction performance of the friction material; and the heat transfer efficiency of the whole composite material is also improved, so that the composite material has more stable performance under a high-temperature condition. The preparation method comprises the steps of mixing, dispersing, molding and curing the phenolic resin, the reinforced fibers, the graphene oxide and the coupling agent.

The gasket for the differential mechanism, the differential mechanism and the vehicle comprise a gasket body, the gasket body comprises a first resin composite layer and a second resin composite layer, the first resin composite layer is provided with through holes, the second resin composite layer at least covers one side surface of the first resin composite layer, and the through holes are formed in the first resin composite layer. Wherein the friction coefficient of the second resin composite layer is smaller than that of the first resin composite layer; according to the gasket for the differential mechanism, the second resin composite layer with the relatively small friction coefficient is selected as a friction assembly to abut against the inner surface of a differential mechanism shell or a gear; the friction performance between the differential gasket and the gear and the friction performance between the differential gasket and the inner surface of the differential shell are improved through the friction assembly, then the turning abnormal sound of a vehicle caused by a differential is reduced, and the driving experience of a driver and passengers is improved.

The invention discloses a high-wear-resistance ceramic enhanced polymer composite material, and belongs to the technical field of composite materials. The high-wear-resistance ceramic enhanced polymer composite material is prepared from polypropylene resin, surface modified aluminum oxide ceramic filler, carbon fibers, silicon dioxide and other auxiliaries, according to the composite material, the polypropylene resin is adopted as a matrix, and the specially modified aluminum oxide ceramic filler and the carbon fiber reinforced phase are added, so that the composite material has excellent wear resistance, high strength and stable friction performance.

The invention discloses a method for depositing a diamond film on the surface of zirconia ceramic and a product and application of the diamond film, and belongs to the technical field of surface treatment.The method comprises the steps that 1, a zirconia ceramic substrate is pretreated; (2) depositing a transition layer on the zirconia ceramic substrate treated in the step (1) through magnetron sputtering, wherein the transition layer is a silicon film, a titanium film or a chromium film; (3) carrying out carbonization heat treatment on the surface of the transition layer through hot filament chemical vapor deposition; and (4) placing the zirconia ceramic substrate treated in the step (3) in an ethanol suspension of nano-diamond, performing ultrasonic oscillation and crystal planting, taking out the zirconia ceramic substrate, drying, and preparing the diamond film by utilizing hot filament chemical vapor deposition. The method is simple, efficient, good in controllability and high in repetition rate, firm connection between the diamond film and the zirconia ceramic can be achieved, the film-substrate matching problem is solved, and the abrasion resistance and corrosion resistance of the zirconia ceramic substrate are improved.

The invention discloses an efficient anti-wear and anti-friction additive and a preparation method thereof, and relates to the technical field of lubricating materials. The additive comprises at least one metal composite compound, and metal elements in the metal composite compound comprise one or a combination of at least two of Ni, Cu, Zn, Ti or Ce; by controlling the mass ratio of each element, the synergistic interaction is realized; the preparation method comprises the following steps: mixing a metal composite compound, then carrying out ball milling treatment, and then carrying out calcination and surface modification to prepare the additive, the additive provided by the invention can form a high-strength protective film on a friction interface through the synergistic effect of a specific metal composite compound, so that the anti-wear and anti-friction performance and high-temperature stability of the lubricating oil are remarkably improved.

The invention discloses a novel Ag-C fiber electric brush contact which comprises Ag fibers and C fibers, according to the total volume of the novel Ag-C fiber electric brush contact, the Ag fibers account for 20%-30% of the total volume of the novel Ag-C fiber electric brush contact, and the C fibers account for 5%-10% of the total volume of the novel Ag-C fiber electric brush contact; during preparation, the Ag fibers and the C fibers are cut into the same length and then are stacked and laid on the Cu net, the Cu net is used for wrapping the Ag fibers and the C fibers, the wires are welded, then the resin is used for filling and fixing the end face and coating the surface of the Cu net, and after the resin is hardened, the Ag-C fiber electric brush with the Ag fibers evenly separated by the C fibers is obtained. Through tests, the novel Ag-C fiber electric brush provided by the invention has the characteristics of stable friction coefficient (in a stable stage of a wear distance exceeding 100km), low noise, low wear rate (superior to 10 <-15 > m < 3 > / Nm) and the like.

The utility model discloses a cotton cleaning noil recycling device which comprises a dust remover, a material conveying pipe, a presser, a small bar machine, a connecting body, a conveying pipe and a protection device. The protective device is arranged to protect the conveying pipe placed on the ground, the situation that when the ground is cleaned, the conveying pipe is damaged due to the fact that the conveying pipe is impacted by foreign objects, or a connecting part is loosened due to the influence of impact vibration is avoided, and the protective device is provided with the arc-shaped protective plate to protect the conveying pipe from being damaged. The top of the conveying pipe is protected, the friction effect between the conveying pipe and the ground is increased through the anti-skid plate, the stable protection effect is achieved, the front face and the side edge of the vertical connecting position of the two ends of the conveying pipe are protected through the end protection pieces, damage and vibration caused by external force to the conveying pipe and the connecting position of the conveying pipe are reduced, and the service life of the conveying pipe is prolonged. And the end protection piece is installed on the base body in an inserted mode, installation is easy and convenient, flexibility is high, and the requirements of conveying pipes with different lengths can be met conveniently.

The utility model relates to the technical field of electro-corrosion foil collecting production, in particular to an electro-corrosion foil collecting production line deviation rectifying device which comprises a bottom plate, vertical plates are fixedly connected to the left side and the right side of the upper end face of the bottom plate, and a plurality of rolling deviation rectifying wheels distributed front and back are movably connected to the interiors of two installation shells. The outer walls of the two vertical plates are connected with two electric push rods in a penetrating mode, and the four electric push rods distributed in a front-back pairwise mode are detachably connected with the outer walls of the two mounting shells correspondingly. Supporting plates located in front of the mounting shell are fixedly connected to the opposite sides of the two vertical plates correspondingly, infrared emitters are installed on the lower end faces of the two supporting plates correspondingly, infrared receivers are installed in the two mounting grooves correspondingly, controllers are installed on the upper end faces of the two supporting plates correspondingly, and the infrared emitters are connected with the controllers correspondingly. Furthermore, the device is convenient for automatically detecting and rectifying the electrocorrosion foil in the winding process, and in the rectifying process, the damage to the two sides of the electrocorrosion foil is prevented, and the friction to the two sides of the electrocorrosion foil is reduced.

The present invention discloses a magnetic rare earth friction material whose friction coefficient changes in the same direction as temperature, comprising the following components: 15-30% paramagnetic rare earth material, 15-25% fiber, 4-8% resin, 10-20% friction adjustment material, 8-15% graphite, and 20-30% filler; its preparation steps are: mixing, hot pressing, heat treatment, and size processing. The present invention adopts a paramagnetic rare earth material, and a combination of a fiber material, a high temperature resistant resin, a friction adjustment material, a lubricating material, and a filling material for pressing and forming; according to the principle that the magnetic susceptibility of the paramagnetic rare earth material is inversely proportional to the temperature, when the temperature of the paramagnetic rare earth material rises, the magnetic susceptibility decreases, the lubricity decreases, and the friction coefficient of the material increases, thereby achieving the change of the friction coefficient in the same direction as temperature; the overall performance of the friction material is adjusted by resin, friction adjustment material, graphite, and filler, so that it has good friction performance, mechanical performance, and physical performance, thereby ensuring the effectiveness, safety, and stability of the braking function.

The invention relates to the technical field of high polymer material application, in particular to a drip irrigation capillary tube prepared based on modified polyethylene and a preparation technology. The modified ultra-high molecular weight polyethylene, the zinc oxide nanowires and the modified zirconium phosphate play a role through a synergistic effect, and an effective anchoring and bonding structure is formed between the modified zirconium phosphate and the modified ultra-high molecular weight polyethylene, so that the interface interaction between the inorganic filler and the modified ultra-high molecular weight polyethylene is improved; the inorganic phase / silane coupling agent / organic phase combined state is formed, the hexagonal wurtzite structure of the zinc oxide nanowires has an excellent connection effect, and the overall combination of the modified zirconium phosphate and the modified ultra-high molecular weight polyethylene is further enhanced, so that the overall performance of the modified ultra-high molecular weight polyethylene composite material is improved, and the service life of the modified ultra-high molecular weight polyethylene composite material is prolonged. The friction resistance, the temperature resistance, the corrosion resistance and the like are effectively enhanced.

The application discloses an artificial blood vessel joint and a preparation method thereof. The blood vessel joint adopts a carbon-based material as a base body, a double-layer composite coating with PyC and Ag-doped DLC and an Ag-doped DLC coating are prepared on the inner wall and the outer wall respectively, and the blood vessel joint is obtained; the inner wall of the blood vessel joint is smooth and compact, which is beneficial to blood circulation; the outer wall is a porous Ag-doped DLC coating, which is beneficial to biological fixation with tissues; the Ag-doped DLC coating endows the blood vessel joint with good antibacterial property, reduces inflammation, and can improve the adverse reaction of the human body caused by friction and powder loss after the blood vessel joint is implanted into the human body.

The invention discloses a low-noise PA6 composite material and a preparation method thereof, the PA6 composite material is prepared from the following raw materials in parts by mass: 40-90 parts of PA6 resin, 1-6 parts of a noise reduction auxiliary agent, 0.1-1 part of an antioxidant, 0.1-1 part of a lubricant and 0-60 parts of glass fibers, and the noise reduction auxiliary agent is porous graphite. The pore structure of the porous graphite can enhance the interface bonding force with the PA6 base material, and the compression resilience can help the PA6 base material to disperse stress and reduce stress concentration when the PA6 base material is subjected to external force, so that the surface abrasion phenomenon of the composite material is reduced, and noise is reduced. And after the porous graphite is subjected to graft modification treatment by the polyether chain segment, the stability is improved, the flexibility and fluidity of the molecular chain of the material are also improved by introducing the flexible chain segment, the friction property of the material is reduced, and the service life of the low-noise PA6 composite material is further prolonged.

The present invention discloses a galvanized steel wire cleaning system, comprising an ultrasonic cleaning box, a first opening is provided on the inner top of the ultrasonic cleaning box, a second opening is provided on the left inner wall of the ultrasonic cleaning box, a plurality of guide rollers are rotatably connected between the front and rear inner walls of the ultrasonic cleaning box, a steel wire body is wound around the plurality of guide rollers, one end of the steel wire body passes through the first opening, and the other end of the steel wire body passes through the second opening; a grinding mechanism, the grinding mechanism comprises a first connecting plate fixedly connected to the left inner wall of the ultrasonic cleaning box, and a first connecting plate is fixedly connected to the right side of the first connecting plate. In actual use, the cleaning system utilizes a combination of grinding, brushing and ultrasonic cleaning to effectively improve the cleaning effect. Since the surface oxide layer and oil layer have been almost removed by grinding itself, there is no need to use a cleaning agent, and the flushing step after cleaning is omitted.

The purpose of the present invention is to provide an inkjet ink which has good friction resistance and alcohol resistance when printed on various substrates such as plastic substrates, and which does not produce odor during production or the like. Specifically, the present invention relates to a pigment dispersion for ink jet, which is characterized by containing a dispersant (A), a pigment (B), a binder (C) and water (D), the dispersant (A) containing at least a non-crosslinked resin (A1) having a constituent unit (a1) derived from an acid group-containing monomer, and in the resin (A1), the neutralization rate when an acid group is neutralized at a theoretical equivalent is 100%. The acid group in the constituent unit (a1) is neutralized using an alkanolamine having 1-3 hydroxyl groups in the structure at a neutralization rate of 80% to 200% (inclusive).

The invention relates to a damping shock-absorbing material, in particular to a damping shock-absorbing material containing selfheal shells and kyanite and a preparation method of the damping shock-absorbing material. The invention aims to provide the damping shock-absorbing material containing the summer fruit shell and the kyanite, and the material has good friction performance, wear resistance and high temperature resistance, is beneficial to environmental protection, and can meet the use requirements in different fields. According to the technical scheme, the damping material containing the summer fruit shells and the kyanite comprises the following components in parts by weight: 10-30 parts of summer fruit shell powder; 10 to 30 parts of kyanite powder; 10 to 20 parts of polyphthalamide powder; 4 to 10 parts of graphite powder; 5 to 12 parts of steel fiber; 10 to 30 parts of ceramic fiber; 1-5 parts of a friction modifier; and 4-12 parts of powdery butyl fluorine mixed rubber.

The invention discloses energy-saving gear lubricating oil and a preparation method thereof, and belongs to the technical field of lubricating oil, the energy-saving gear lubricating oil comprises the following components by mass: 80%-95% of base oil, 2%-18% of a viscosity index improver, 0.1%-1% of a pour point depressant, 0.05%-0.5% of an antioxidant, 0.5%-5% of an anti-wear reagent at extreme pressure, 0.1%-3% of a friction modifier, 0.05%-2.5% of an antirust agent, and 0.005%-0.03% of an antifoaming agent. The anti-wear reagent at extreme pressure and the friction modifier have a synergistic effect, so that the anti-wear performance of an oil product can be effectively improved, the friction coefficient is reduced, the transmission efficiency of a gear is improved, and the energy consumption is reduced; the base oil and the viscosity index improver adopted by the invention have excellent low-temperature performance, the viscosity-temperature performance of the oil product is greatly improved, the required oil film strength is achieved along with the change of working conditions, the lubrication of a vehicle transmission system is fully met, and the energy consumption is saved.

Provided is a polyurethane elastomer having excellent friction properties (low friction coefficient), high wear resistance, and low hardness. The urethane elastomer includes: a first repeating structural unit represented by the general formula (1) and a second repeating structural unit represented by the general formula (2). The urethane elastomer includes a matrix phase and a domain phase dispersed in the matrix phase. The matrix phase includes the first repeating structural unit. The domain phase includes the second repeating structural unit.

The utility model discloses a mounting structure of a folding frame of a clothes airing machine. The mounting structure comprises the folding frame, a rod seat and an inverted L-shaped side plate, a first rail is arranged on the rod seat, and the connecting rod at the tail end of the folding frame is connected to the first rail; the inverted L-shaped side plate comprises a vertical plate and a transverse plate, and a notch is formed in the outer side of the transverse plate; an upper guide rail is fixedly mounted at the bottom of the transverse plate, and a second rail is arranged on the upper guide rail; the first track and the second track correspond to each other up and down and are positioned in the same vertical plane; the upper guide rail comprises an upper bottom wall, a first side wall and a second side wall are arranged on the lower side of the upper bottom wall, a first folded edge is arranged on the lower portion of the first side wall, and a second folded edge is arranged on the lower portion of the second side wall, so that a second track is formed; the head end of the folding frame comprises two first connecting rods, the first connecting rods are connected with upper sliding blocks, the two upper sliding blocks get close to or away from the second track, and the first folding edge and the second folding edge limit the upper sliding blocks to be separated from the second track downwards; therefore, installation is simplified, stress is balanced, and friction noise is reduced.

The present invention provides a charger shell molding process, comprising the following steps: (1) weighing the following raw materials in parts by mass: 50-60 parts of polyphenylene ether resin, 14-19 parts of polycarbonate, 10-17 parts of ASA resin, 1.5-2.5 parts of silane coupling agent, 4-6 parts of modified filler, 0.5-1 parts of lubricant, 0.3-0.8 parts of antioxidant, 1-3 parts of toughening agent, 1-2 parts of thermal stabilizer and 0.3-0.7 parts of anti-dripping agent; (2) mixing polyphenylene ether resin, polycarbonate, ASA resin, modified filler and silane coupling agent to obtain a premix; (3) adding the remaining components to the premix to obtain a final mixture; (4) melt blending the final mixture through a twin-screw extruder to obtain pellets; (5) hot-melt extruding the pellets to obtain a charger shell. The charger shell prepared by the present invention has good processing performance, excellent comprehensive performance and broad market prospects.

The present invention discloses a welding device for the main body of a space capsule homestay, and the present invention relates to the technical field of welding devices, including a composite mechanism. The welding device for the main body of a space capsule homestay is designed with a composite mechanism, wherein a welding frame slides outside a slide block to adjust the welding angle, a sliding block slides on the top of the welding frame to drive the welding gun to move, and the welding gun is controlled to slide up and down by a first linear module to facilitate approaching the material and improve welding accuracy, and an electric push rod is used to control a square plate to squeeze the material, so as to control the stability of the material at the welding point and position the welding point at the same time, and then the material is welded by a welding gun to enhance the stability of the material structure.

The present invention relates to a preparation method of a ceramic-based brake pad, and belongs to the technical field of brake pad preparation. The present invention obtains a ceramic-based brake pad by reinforcing fiber, filler, phenolic resin powder, nitrile rubber powder, and modified molybdenum disulfide, after stirring, mixing, pressing, and heat treatment; the modified molybdenum disulfide of the present invention is added to a reactor 1 by molybdenum disulfide, γ-methacryloxypropyl trimethoxysilane, and dimethyl sulfone to react; then p-terphenyl-4,4'-dithiol and sodium methoxide are added to react; 10,13-epoxy-10,12-octadecadienoic acid, zirconium nitrate, and dimethyl sulfone are added to a reactor 2 to react and generate 10,13-epoxy-10,12-octadecadienoic acid / zirconium complex; the product of reactor 2 is added to reactor 1 to react; the ceramic-based brake pad prepared by the present invention has stable friction performance, good high temperature resistance, and long service life.

The present invention relates to a titanium-doped multilayer copper-based composite material, comprising a titanium-doped layer, a reinforcement phase composite layer, and a copper-based surface layer; the reinforcement phase composite layer is at least one of an aluminum oxide whisker reinforcement layer and a graphene reinforcement layer; the copper-based surface layer is located at the top and bottom layers of the composite material; the titanium-doped layer is arranged between adjacent reinforcement phase composite layers, or between the reinforcement phase composite layer and the copper-based surface layer. In the titanium-doped multilayer copper-based composite material of the present invention, as the titanium content of the titanium-doped layer increases, the mechanical properties of the multilayer copper-based composite material are significantly improved, the titanium-doped layer structure realizes the continuous reinforcement of the multilayer structure, improves the interface bonding force of the reinforcement phase, realizes the anisotropy in the direction perpendicular to the multilayer structure, and has good friction performance and electrical conductivity.

This invention belongs to the field of clutch manufacturing technology and aims to solve the problem that the friction performance of existing heavy-duty clutches gradually decreases over time, thus affecting their transmission smoothness and shortening their service life. To this end, this invention provides a method for preparing a surface-textured clutch plate. The method includes: preparing a mixed powder comprising metal matrix powder, solid lubricant powder, reinforcing phase powder, and a forming agent, and mixing them uniformly in a predetermined ratio; loading the mixed powder into a mold for cold pressing to obtain a green blank with a predetermined geometric structure; sintering the green blank under a protective atmosphere with stepped heating; processing microtextures on the friction surface of the sintered part using an ultrasonic impact device; and cleaning the surface of the ultrasonically impacted workpiece. This invention can optimize the friction performance of the clutch, enabling it to maintain high friction characteristics for a long time and preventing a rapid reduction in the clutch's service life.

The utility model relates to a kind of friction damping spherical support, including upper support plate and lower support plate, and the spherical support is detachably installed between the lower surface of upper support plate and the upper surface of lower support plate by bolt, and the spherical support includes spherical surface plate and spherical crown lining plate;Spherical crown lining plate top is equipped with arc-shaped groove, and the lower end of spherical surface plate is equipped with spherical convex surface compatible with arc-shaped groove, and spherical crown lining plate is slidably matched with the spherical convex surface of spherical surface plate by arc-shaped groove;The upper end surface of spherical surface plate is fixedly connected with upper slide plate, and the lower end surface of spherical crown lining plate is fixedly connected with lower slide plate, and upper slide plate and lower slide plate are all made of polyfluoroethylene wear-resistant material;Between upper support plate and lower support plate, damping component distributed around the circumference of spherical crown lining plate is also installed.The utility model optimizes friction pair structure and material, simplifies damping component, realizes stable damping, and prolongs service life.

The application discloses a water-based wheel-rail friction modifier and a preparation method thereof, and raw materials include bentonite, talcum powder, molybdenum disulfide, modified zirconium phosphate, copper-based nanomaterial, silicon dioxide, magnetic iron oxide, sodium silicate, metal passivator, water-based epoxy resin, acrylic emulsion, water-based polyurethane, polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, ethylene glycol, modified wheat straw powder, sodium dodecyl sulfate, antioxidant, AMP-95, defoaming agent and deionized water. After the above ingredients are weighed, they are sequentially stirred and mixed, and then are ground and homogenized to obtain a finished product. The application solves the problems of the existing water-based tread modifier, such as large friction coefficient fluctuation, easy failure at high temperature and metal corrosion of the water-based system.

The utility model provides a pavement strength testing device, which relates to the technical field of pavement measurement, is mounted on a base and comprises a detection main body and a placement frame arranged on the detection main body, and a limiting component for limiting a pavement sample is arranged in the placement frame. A movable assembly for rotating the sample is further arranged at the bottom of the placement frame, the pavement sample can be rotated by directly rotating a movable column and rotating the movable column, and due to the fact that the movable column is arranged at the bottom of the placement frame, safety is higher in the adjusting process; and the overall adjustment and pavement sample testing process is carried out in the placement frame, and the placement frame can further prevent scraps from splashing in the testing process, so that the overall safety is higher.

The utility model relates to the technical field of medical devices, in particular to an auxiliary device for the ophthalmology department. The auxiliary device for the ophthalmology department comprises a holding rod, the interior of the holding rod is of a hollow structure, one end of the holding rod is provided with an auxiliary head communicated with the interior of the holding rod, and the other end of the holding rod is provided with a negative pressure rubber tube communicated with the interior of the holding rod. According to the auxiliary device for the ophthalmology department, when the auxiliary device is used, eyelids of a patient can be positioned and fixed by controlling the position of the auxiliary head, so that a worker can conveniently cut off eyelashes of the patient, and in the process, the cut eyelashes can be sucked into the device through the air inlet under the negative pressure effect of the external negative pressure device; fine eyelashes can be prevented from entering the eyes, and eye safety of a patient is guaranteed.