62results about How to "Moderate friction" patented technology

The invention discloses a three-dimensional (3D) printer which comprises a rack, a base, an X-axis movement system, a Y-axis movement system, a Z-axis movement system and a printing device, wherein the rack comprises a left upright post, a right upright post, an upper connecting plate and a lower connecting plate; the upper connecting plate and the lower connecting plate are connected with the left upright post and the right upright post, respectively; the base is connected with the lower connecting plate; the upper connecting plate is connected with a printing supplies connecting rack; the printing supplies connecting rack is connected with a printing supplies fixing disc; the printing device is connected with the X-axis movement system; the X-axis movement system is connected with the Z-axis movement system; the Z-axis movement system is connected with a guide rail of the left upright post and the right upright post; the Y-axis movement system is connected with the base; the X-axis movement system is provided with an X-axis movement guide rail through which the printing device moves; a power supply and a controller which are connected with each other are arranged at the bottom of the base; the controller is connected with the X-axis movement system, the Y-axis movement system, the Z-axis movement system and the printing device. The 3D printer is simple and compact in structure, small in size and low in manufacturing cost.

The invention discloses a frequency-division multiplexing (FDM)-based three-dimensional (3D) printer, comprising a frame, a base, an X-axis mobile system, a Z-axis mobile system and a printing device, wherein the printing device is connected with the X-axis mobile system; the X-axis mobile system is connected with the Z-axis mobile system; the Z-axis mobile system is connected with a guide rail of an upright post; a power supply and a controller are arranged on the base; the controller is connected with the Z-axis mobile system; the Z-axis mobile system comprises a third numerical control motor, a left screw and a right screw, a Z-axis fixed base and a limit switch; the left screw and the right screw are respectively arranged at the outer sides of a left upright post and a right upright post; the third numerical control motor is connected with the lower ends of the screws; the screws are connected with screw nuts; the screw nuts are connected with the Z-axis fixed base; the Z-axis fixed base is connected with the X-axis mobile system; a fixed base through hole is formed in the Z-axis fixed base; the left upright post and the right upright post pass through the fixed base through hole; the bearing is matched with the guide rail of the upright post. Thus, the FDM-based 3D printer is simple and compact in structure, small in volume and low in manufacturing cost.

The invention provides an automatic pole climbing device and an electric maintenance vehicle, and relates to the technical field of electric power safety. The automatic pole climbing device comprises an operation platform, a first frame and a second frame, and the operation platform is fixed to the first frame; the first frame comprises a supporting assembly, an electric cylinder is arranged between the first frame and the supporting assembly, and the electric cylinder is used for pushing the supporting assembly to slide along linear guide rails; the automatic pole climbing device further comprises a linkage rod, one end of the linkage rod is hinged to the supporting assembly, the other end of the linkage rod is hinged to one end of a connecting rod, the middle portion of the connecting rod is fixed to the second frame through a rotating shaft, and the other end of the connecting rod is hinged to the end, far away from a driven friction wheel, of a U-shaped frame; and when the supporting assembly slides along the guide rails, the linkage rod enables the U-shaped frame to slide in the reverse direction. According to the automatic pole climbing device, a driving friction wheel and the driven friction wheel can simultaneously clamp an electric pole, uniform and symmetrical friction is provided, the pole climbing process is stable, operation is easy and convenient, and safety is high.

The invention belongs to the technical field of processing and production of surf boards and particularly relates to a manufacturing process of a surf board. The manufacturing process includes the steps of material preparation; forming; lamination; part assembling; coarse grinding; secondary lamination waxing; fine grinding; primer spraying; ash scraping; primary grinding; white primer spraying; secondary ash replenishing; secondary grinding; white finish spraying; water milling; designing; colored paint spraying; stamping designing; varnish spraying; polishing; packaging. Compared with similar surf boards, the overall coarseness of the manufactured surf board is more suitable for surfing experience, friction force generated when foot soles, on the surf board, of an athlete make contact with the surf board is proper, the athlete can better drive the surf board when operating the surf board, the surf board cannot make the foot soles uncomfortable due to larger friction force, and the surf board cannot make the foot soles easily disengaged from the surf board due to smaller friction force.

The invention discloses a shoe polishing device. The shoe polishing device comprises a clamping mechanism, a walking mechanism and a shoe polishing mechanism, wherein the clamping mechanism is used for clamping a shoe; the walking mechanism comprises a pair of sliding rails which are arranged in parallel; the shoe polishing mechanism is slidably arranged on the sliding rails of the walking mechanism and moves back and forth on the sliding rails; the shoe polishing mechanism comprises a front surface roller and a side surface roller, wherein the front surface roller and the side surface roller are respectively used for polishing a front surface and a side surface of the shoe. The shoe polishing device disclosed by the invention solves the defect that the shoe polishing device in the prior art can only polish the front shoe surface and the shoe edge, and realizes the full-coverage polishing of the front surface and side surface of the shoe; in addition, the shoe polishing device can adapt to shoes with different sizes, the shoe clamping force and friction force are moderate, the shoe is flexibly polished and no damage is caused to the shoe.

The invention discloses a power transmission line wiring device which comprises an upper rotation shaft and a lower rotation shaft. The lower rotation shaft is fixedly provided with a plurality of lower driving wheels. Upper driving wheels are in one-to-one correspondence with the lower driving wheels. The circumference direction of each upper driving wheel is provided with an upper driving groove. The circumference direction of each lower driving wheel is provided with a lower driving groove. The bottom surface of the upper driving groove and the bottom surface of the lower driving groove are arc surfaces. The upper driving groove and the lower driving groove of the corresponding upper driving wheel and the lower driving wheel are same in size. The wiring device also comprises a motor plate. The motor plate is fixedly provided with a motor. The motor is equipped with a speed reducer. The speed reducer is provided with a main shaft. A clutch is arranged between the main shaft and the lower rotation shaft. The clutch is provided with a clutch lever. The beneficial effects are that 1) the power transmission line wiring device is simple in structure; 2) the wiring device can carry out wiring on a plurality of same-diameter power transmission lines, and can also carry out wiring on a plurality of different-diameter power transmission lines; and 3) the wiring device not only has a manual wiring function, but also has an automatic wiring function.

The invention provides a curtain wall cleaning robot, relates to the technical field of cleaning machineries, and aims to alleviate the technical problem that in the prior art, friction force betweenwalking wheels and a curtain wall is excessively large and therefore the curtain wall is possibly damaged. The curtain wall cleaning robot comprises a rack, a rolling brush assembly, the walking wheels and a pressure adjusting assembly, wherein the rolling brush assembly comprises a barrel body and a sweeping piece arranged on the outer peripheral wall of the barrel body; the barrel body and the walking wheels are pivoted to the rack; a rotation center line of the barrel body is parallel to that of the walking wheels; the outer edge of the sweeping piece protrudes out of the outer edges of thewalking wheels, so that the sweeping piece and the walking wheels can abut against the curtain wall to be cleaned; the pressure adjusting assembly is installed on the rack; and the pressure adjustingassembly can adjust the pressures between the walking wheels and the curtain wall to be cleaned.

The invention relates to a clothes handing wall. The clothes handing wall comprises a front plate and a back plate, wherein the front plate and the back plate are fixedly connected onto a ceiling and a floor indoors; a closed air pressure chamber is clamped between the front plate and the back plate, and the front plate is tightly attached to the outer circumferential wall of the air pressure chamber; the air pressure chamber is communicated with an air exhauster located outdoors through an air guide pipe, and the air exhauster is electrically connected with an adjuster with a wireless control function; the front plate is inclined upwards, a frosted mesh is attached to the surface of the front plate, and negative pressure holes are formed in the front plate in an isometric array mode and are communicated with the air pressure chamber. The clothes hanging wall can intelligently absorb clothes, has low probability of causing fabric wrinkling, enables the room to be neat and attractive, and has the ventilation effect.

The invention discloses a textile bobbin, and belongs to the field of textile machinery. The textile bobbin comprises a pipe body and side disks at the two ends of the pipe body, and an axial through hole is formed in the pipe body. The textile bobbin is characterized in that the side disks are stainless steel side disks and are in threaded connection with the wall of the axial through hole of the pipe body, central through holes are opened in the side disks, and rubber layers are arranged on the inner walls of the central through holes; arc-shaped transition rings are arranged at the contact sites on both sides of the pipe body and the side disks; a frosted layer is arranged on the outer circumferential surface of the pipe body. The wear resistance and strength at both ends of the bobbin are improved to avoid deformation or burr and prolong the service life.

The invention discloses a 3D printer based on FDM (Frequency-Division Multiplexing) technology. The 3D printer comprises a rack, a base and a Y-axis movement system, wherein the base is provided with a power supply and a controller; the controller is connected with the Y-axis movement system; the Y-axis movement system comprises a Y-axis movement guide rail and a second numerical control motor; the base is provided with a front fixed seat and a rear fixed seat; the Y-axis movement guide rail is connected with the base; the second numerical control motor is arranged on the lower part of the base and is connected with a second gear; the second gear is connected with a second synchromesh gear belt; the second synchromesh gear belt is connected with a second driven wheel and is provided with a second connection block; the second connection block is connected with an auxiliary connection plate; the auxiliary connection plate is connected with a working surface heating plate; a heating plate temperature sensor is arranged on the lower part of the working surface heating plate and is connected with the controller; the second connection block is provided with a first groove and a second groove of the connection block; the first groove is connected with one end of the second synchromesh gear belt and the second groove is connected with the other end of the second synchromesh gear belt.

The invention discloses hidden button type heel-replaceable high-heeled shoes, wherein each of the high-heeled shoes comprises a heel, a pressing plate, a button, a first compression spring, a jacking rod, a second compression spring and a sole, wherein a first groove, a second groove and a third groove are formed in the middle of the heel; the button and the jacking rod are arranged inside the first groove; the pressing plate is arranged inside the second groove; the button can move forwards and backwards along the first groove; the jacking rod can move upwards and downwards along the first groove; the pressing plate is fixedly connected with the bottom surface of the second groove. According to the hidden button type heel-replaceable high-heeled shoes, the heel is connected with the molded surface of the sole in a matched manner, through the interaction among the button, the jacking rod and the spring, the bulge of the jacking rod can ascend or descend, so that the heel can be connected with or separated from the sole, the button can move inwards along the bottom surface of the pressing plate by only slightly pressing the button inwards, then the jacking rod can be driven to move downwards, the bulge of the jacking rod can be separated from a fifth groove in the sole, and the heel can be separated from the sole by pulling down the heel with a slight force at the moment, so that the heel can be conveniently and rapidly disassembled and replaced.

The invention belongs to the technical field of oral hygiene products, and particularly relates to children toothpaste and a preparation method thereof. The children toothpaste is prepared from the following raw materials in percentage by weight: 0.05-0.3% of trisodium phosphate, 52-60% of a humectant, 16-20% of hydrated silica, 0.3-0.5% of xanthan gum, 0.5-0.8% of sodium carboxymethyl cellulose,1-2% of lauryl sodium sulfate, 1-3% of pulullan, 4-7% of trehalose, 0.1-0.3% of a preservative, 0.5-2% of essence and 13-16% of water. The toothpaste has the advantages of being safe, mild, non-irritating, moderate in friction force, transparent, smooth, clean and fine in paste, low in foam amount and suitable for being used by children.

The invention provides a washing machine, wherein the conduction detection of a damper is performed without hindering the attenuation force control of the damper. Meanwhile, the conduction detection of the damper is maintained to be constant regardless of the environment temperature. The suspension of an elastic support rotating groove is equipped with a damper for attenuating the vibration of a basin. The damp adopts a functional fluid and the viscosity of the functional fluid is changeable along with the applied power implemented by the energization of a coil. At a timing when the attenuation force of the damper is not changed, the conduction detection of the damper is performed, which will not hinder the attenuation force control of the damper. The energization of the coil is executed before the dehydration stroke (washing stroke), so that the viscosity of a magnetic viscous fluid and the hardness of a sealing member for preventing the leakage of the magnetic viscous fluid during the dehydration stroke at a low temperature are reduced. Therefore, the frictional force for shafts becomes moderate.

The invention discloses an easy-to-cure wear-resisting raw lacquer coating for a concentrating table and a preparation method of the easy-to-cure wear-resisting raw lacquer coating. The wear-resisting raw lacquer coating is prepared from, by mass, 60%-75% of raw lacquer, 10%-18% of nanocrystal cellulose, 8%-15% of modifying agent, 1%-7% of dispersing agent, 5%-8% of diluents, 2%-5% of functional assistant and 0.5%-1.5% of coupling agent. By means of reasonable compounding of nanocrystal cellulose, the raw lacquer and other assistants, the defects that the requirement of the raw lacquer for the construction condition is high, and a specific temperature and humidity environment is needed are overcome, so that the raw lacquer coating is not influenced by temperature or humidity, and can be cured under the conditions of low temperature and low humidity, normal-temperature construction is achieved, the construction period of the raw lacquer can be shortened, and production cost can be reduced. The advantages that the raw lacquer is good in wear resistance and moderate in friction force are kept. It is proved through experiments that the wear-resisting raw lacquer coating has excellent corrosion resisting capacity and is good in acid resistance, water resistance and medium resistance.

The invention discloses a portable sand box tool overturning lifting appliance. The portable sand box tool overturning lifting appliance is characterized in that a lifting appliance body is of a double-layer structure; gaskets (6) are arranged between a middle hanger shaft (3) and the inner layer and outer layer of the lifting appliance body; the middle of the middle hanger shaft is connected with the lower portion of a closed lifting ring in a sleeved mode, and the two ends of the middle hanger shaft penetrate through the inner layer and outer layer of the top end of the lifting appliance body separately and are fixedly connected through screw caps; the two sides of the middle hanger shaft are each provided with a fastening bolt (4) at equal intervals and are fixedly connected with the inner layer and outer layer of the lifting appliance body through screw caps (5); pulley hanger shafts II (7), hanger shafts III (10) and cross-shaped joints (8) are arranged at the two ends of the lifting appliance body; gaskets (9) are arranged between the hanger shafts II and the inner layer and outer layer of the body; the hanger shafts II penetrate through the inner layer and outer layer of the lifting appliance body and are fixedly connected through screw caps; the hanger shafts II are connected with the corresponding cross-shaped joints in a sleeved mode, and the hanger shafts III are connected with pulleys (11) in a sleeved mode; and the hanger shafts III penetrate through the two sides of the corresponding cross-shaped joints and are fixedly connected through nuts, and the pulleys are sleeved with corresponding iron chains (12).

A press die apparatus for thin plate has a punch (1), a die (2), a wrinkle holding-down die (3), friction force-measuring means (4) installed between the die and the wrinkle holding-down die, and a hydraulic cylinder (5).

A press die apparatus for thin plate has a punch (1), a die (2), a wrinkle holding-down die (3), friction force-measuring means (4) installed between the die and the wrinkle holding-down die, and a hydraulic cylinder (5).

The invention discloses a clutch structure capable of automatically regulating a center distance and a speed reducer. The clutch structure comprises an elastic plate, a planetary gear and a driving gear, wherein the elastic plate is arranged on the driving gear and provided with an elastic end and a clamping end; and the planetary gear is arranged at the clamping end, and the engagement of the planetary gear and the driving gear is kept by elastic force provided by the elastic plate. As the elastic plate provides elastic force, when the planetary gear and the driving gear are worn, and the center distance between the planetary gear and the driving gear can be automatically regulated by utilizing the elastic plate; a friction coefficient between the planetary gear and the driving gear cannot be reduced due to wear, the planetary gear is always engaged with the driving gear, and proper friction force is kept; and compared with the traditional swing block swinging type clutch structure, the clutch structure has the advantages that not only can the clutching stability be further improved, and the service life of the clutch structure also can be prolonged.

The invention discloses a bicycle handlebar grip which comprises a sponge layer and a rubber support layer. The rubber support layer is of a hollow mesh shape. The rubber support layer wraps on the surface of the sponge layer. Compared with sponge handlebar grips, the bicycle handle grip has the advantages that a rubber frame is used as a support, the durability of the sponge is increased greatly, sponge breakage caused by excessively large force, and moderate hardness and friction force are provided.

The invention discloses an abrasion-resisting raw lacquer coating for a concentration table and a preparation method thereof. The abrasion-resisting raw lacquer coating is prepared from, by mass, 60%-75% of raw lacquer, 10%-18% of plant microcrystalline cellulose, 8%-15% of modifying agent, 1%-7% of dispersing agent, 5%-8% of diluent, 2%-5% of functional aids and 0.5%-1.5% of coupling agent. According to the brasion-resisting raw lacquer coating for the concentration table and the preparation method thereof, the plant microcrystalline cellulose, the raw lacquer and other auxiliaries are reasonably compounded, so that the defect that the construction condition requirement of the raw lacquer is high and thus a specific temperature and humidity environment is needed is overcome, the raw lacquer coating cannot be affected by the temperature and humidity and can be cured under the low-temperature and low-humidity conditions, normal temperature construction is achieved, the construction period of the raw lacquer can be shortened, and the production cost of the raw lacquer is reduced; moreover, the advantages that the raw lacquer is good in abrasion resistance and moderate in friction force are reserved. Verification proves that the abrasion-resisting raw lacquer coating has excellent corrosion resistance, and is good in acid resistance, water resistance and medium resistance.

The invention provides a toothpaste formula. The toothpaste formula comprises, by weight, 30-40% of glycerin, 15-20% of propylene glycol, 14-18% of calcium hydrogen phosphate, 0.1-0.2% of carrageenan,0.2-0.3% of agar, 0.6-1.0% of sodium carboxymethyl cellulose, 1-2% of a foaming agent, 1-3% of pullulan, 4-7% of xylitol, 1-2% of vervain extract and 3-5% of a cooling composition. The cooling composition is composed of (1R,2S,5R)-N-(4-(cyanomethyl)phenyl)-2-isopropyl-5-methyl cyclohexane methanamide, methanamide and glycerin triacetate. By component selection and compounding and cooperative interaction of components, prepared toothpaste is safe, mild, nonirritant, moderate in friction, great in glycerin triacetate, smooth, delicate and effective in cooling, has anti-inflammation and bactericidal functions and has excellent efficacies in dental and oral health protection.

The invention discloses an elastic upper box efficient anti-sliding flat-die granulator. The granulator comprises a main shaft of which the axial direction is a vertical direction, the main shaft penetrates through an upper box body, a middle box body and a lower box body, the main shaft is connected with a driving motor, a compression roller frame is fixedly connected to the main shaft, a compression roller shaft with the axial direction being the horizontal direction is fixedly connected to the compression roller frame, a compression roller is rotationally connected to the compression rollershaft through a bearing, a mold disc is fixedly arranged below the compression roller, a plurality of mold holes are formed in the mold disc, the compression roller is located in the upper box body,the upper box body is of an integrated cylindrical structure formed by rolling a steel plate, internal resistance fluctuation points are arranged on the inner wall of the upper box body, a compressionroller and mold disc meshing mechanism is arranged on the flat-die granulator, and a self-lubricating device is arranged on the flat-die granulator. The flat-die granulator solves a plurality of technical problems that the production efficiency and large-scale production are influenced by a plurality of traditional flat-die granulators in use.

The invention provides a two-sided laminating mechanism for glass shells of mobile phones. The two-sided laminating mechanism comprises a belt line, a conveying line connected with the belt line and astepping motor; the belt line is connected with the stepping motor; and a lower winding film mechanism, a transfer mechanism, an upper winding film mechanism, a primary front compaction and rubber coating wheel, a side compaction and rubber coating wheel, a secondary front rubber coating wheel and a cutting mechanism are sequentially arranged on the belt line. The front compaction and rubber coating wheel has the pressure regulating function, so that the friction force between films and the belt line is moderate; the side compaction and rubber coating wheel has the angle and height regulatingfunctions, so that arc angles of edges of different shells can be dealt with; and a customer can decide the number of shells to be subjected to lamination together according to requirements so as toadapt to a production line.

The invention provides a rotating shaft mechanism capable of rotating by 360 degrees and electronic equipment. The rotating shaft mechanism comprises a first shaft body, a second shaft body, a first torsion mechanism and a second torsion mechanism, wherein the first shaft body and the second shaft body are symmetrically arranged. The first torsion mechanism and the second torsion mechanism correspond to the two shaft bodies and are the same in structure. The first torsion structure comprises a first concave wheel and a first cam which generate torsion through friction. The first concave wheel comprises a first concave pit and a second concave pit which are formed at different positions of the concave surface; the first cam comprises a first convex block and a second convex block which are arranged at different positions of the convex surface, the two concave pits and the two convex blocks are respectively provided with a first side edge, a second side edge, an outer side edge and an inner side edge, and the first side edges and the second side edges are respectively formed by a slope and linearly extend along the radius direction of a wheel body; and when the rotating shaft mechanism moves from a first angle to 0 degree, the first side edge of the first convex block is located between the first side edge and the second side edge of the first concave pit and moves towards the second side edge, and when the rotating shaft mechanism moves to 0 degree, a first specific distance exists between the first side edge of the first convex block and the second side edge of the first concave pit.

The invention relates to the technical field of artificial turfs, and particularly discloses a filling-free lawn with a buffer cushion, the filling-free lawn comprises a lawn base body, a curved grass layer and a straight grass layer, the curved grass layer and the straight grass layer are both arranged on the lawn base body; the curved grass layer is composed of a plurality of curved wires arranged at intervals, and the straight grass layer comprises a wrapping layer and a space layer. The height and density of the buffer layer can be adjusted, insufficient slip and resilience force of the lawn are avoided, the root of the lawn is supported, the problem of high directivity of straight wires is solved, resistance required by rolling of balls is adjusted, data such as resilience, impact absorption resistance and the like of the balls are more durable, and the artificial lawn generates proper friction force when receiving external pressure, so that the service life of the artificial lawn is prolonged. The straight wires are stressed by external pressure to generate a human body mechanics feeling friction effect, body balance is maintained and controlled, the situation that an athlete consumes more energy at the same time and under the same strength, is tired too early and affects playing of skills and tactics of the athlete is avoided, and the bottom end of the straight grass layer is arranged in the curved grass layer, so that the straight grass layer is tall and straight and not prone to lodging.

The invention discloses a bicycle handle with a novel handle grip. The bicycle handle with the novel handle grip comprises a handle body and the handle grip. The handle body comprises at least one outwards extending pivoting portion and at least one through hole formed in the pivoting portion, as well as two holding portions; the two holding portions are formed on the two ends of the body and are adjacent to the pivoting portion; a locking unit penetrates through the through hole, to connect the body with a front fork; the handle grip is divided into two layers, the inner-layer handle grip comprises a thumb lantern ring and a little finger lantern ring which are fixedly connected with the handle body; the outer-layer handle grip comprises a sponge layer and a rubber support layer; the rubber support layer is in the shape of a hollowed-out mesh; the rubber support layer wraps on the surface of the sponge layer. The bicycle handle with the novel handle grip effectively reduces the risk that a rider is injured, and guarantees that the handlebar is always under the control of the hands, the outer layer adopts a rubber skeleton as a support, thus the durability of the sponge is greatly improved, the sponge is prevented from being broken under excessive force, and meanwhile the relatively moderate hardness and friction are also provided.