32results about How to "Reduced internal wear" patented technology

A method and system for controlling a solenoid-operated pressure regulator valve to achieve high compliance with respect to a commanded current in accordance with a precalibrated transfer function. A dither frequency imposed on applied current is changed at precalibrated regulated pressure values to avoid dynamic instability.

An industrial robot comprising a manipulator with a control system, where the manipulator comprises a hollow, first robot unit (9) and a second robot unit (10) rotatable around an axle (A). The first robot unit (9) and the second robot unit (10) are arranged for rotation and / or bending in relation to each other and the second robot unit (10 includes a robot tool (11). Cables (12) are drawn through the first robot unit (9) and arranged coaxially and detachably connected with a first end (13), to the second robot unit (10), via a connection device. The connection device comprises a body (14), fixed to the first end (13) of the cables in at least one wire and the body (14) is arranged with sockets (19) for connection of power supply to the robot tool (11).

A paper machine mesh, in particular forming mesh, includes an upper and a lower fabric layer and with binder threads to join the two fabric layers, whereby the lower fabric layer is formed by the binder threads, lower transverse threads and, woven therewith and extending transverse thereto, lower longitudinal threads, whereby the lower fabric layer has a weaving pattern which is repeated in lower repeats, whereby the binder threads are arranged in pairs and the binder threads of each pair are interchangingly woven with upper and with lower longitudinal threads, whereby each binder thread pair is flanked on both sides respectively by one lower transverse thread and each of the two flanking lower transverse threads is woven in periodic sequence with lower longitudinal threads as follows: i) the flanking lower transverse thread continually crosses several directly consecutive lower longitudinal threads on the outer side of the lower fabric layer; and ii) the flanking lower transverse thread continually crosses a lower longitudinal thread between the upper and the lower fabric layer and forms a thread knuckle. Within the lower repeat:i) each binder thread of each pair with lower longitudinal threads forms at least one tie segment and each tie segment is formed in that the respective binder thread of the pair continually crosses two or more directly consecutive lower longitudinal threads on the outer side of the lower fabric layer; andii) the tie segments of each binder thread pair are arranged relative to the lower transverse threads flanking said segments such that:a) the two flanking lower transverse threads continually cross on the outer side of the lower fabric layer at least the same lower longitudinal threads which together with the binder threads of the pair form the tie segments;b) the one of the two flanking lower transverse threads forms respectively one knuckle with the lower longitudinal thread which directly precedes the corresponding tie segment; andc) the other of the two flanking lower transverse threads forms respectively one knuckle with the lower longitudinal thread which directly follows the corresponding tie segment.

The invention discloses a material dispersing device for a vertical grinder. The material dispersing device comprises a positive cone ring and a negative cone ring which are arranged in an annular space between a grinder shell of the vertical grinder and a grinding barrel of the vertical grinder; and the positive cone ring and the negative cone ring are distributed axially at a certain interval along the grinder shell. Due to the adoption of the material dispersing device for the vertical grinder, the falling time of a ground material ground with a roller mill in the falling process can be prolonged, the material is fully dispersed in the rolling processes of the positive cone ring and the negative cone ring and can be repeatedly impacted, dispersed and separated by rising air flow, the powder selecting efficiency is increased, and the yield of the grinder is remarkably increased. The invention further discloses a material dispersing device for a vertical grinder. The material dispersing device comprises dispersing plates obliquely arranged in an annular space between the grinder shell and the grinding barrel; a plurality of layers of dispersing plates are arranged at intervals along the axial direction of the grinder shell; and each layer of dispersing plates consists of a plurality of dispersing plates which are arranged at intervals along the circumference of the grinder shell.

A paper machine mesh, in particular a forming mesh, includes an upper and a lower fabric layer and binder threads to join the two fabric layers, the lower fabric layer having a weaving pattern which is repeated in lower repeats. Within the lower repeat, each binder thread of each pair with lower longitudinal threads forms at least one tie segment and each tie segment is formed in that the respective binder thread of the pair continually crosses two or more directly consecutive lower longitudinal threads on the outer side of the lower fabric layer, and the tie segments of each binder thread pair are arranged relative to the lower transverse threads flanking said segments.

A locking differential mechanism for supplying torque from a driveshaft to a pair of aligned output shafts including a pair of side gears, a central driver, and a pair of clutch members operatively coupled for rotation with the corresponding one of the pair of side gears. A cam assembly includes a pair of cam members. Each of the pair of cam members includes a plurality of camming teeth extending toward the corresponding teeth on the opposed cam member. Each of the cam members is movable from a first position where the cam teeth are disposed in meshing relationship with respect to each other when the pair of side gears are rotating at substantially the same speed and a second position spaced axially from the first position along the associated side gear so as to move an associated clutch member from its first position to its second position out of driven relationship with the central driver in response to a difference in rotational speed of the associated pair of side gears.

A device and method for securing a sleeve (for sacrificial wear and / or electrical isolation) inside a conduit. In one embodiment, the retention device sits adjacent one end of the sleeve and comprises a ring having a protuberance or lip extending parallel to and against the end of the sleeve, thus pressing the end of the sleeve against the inner surface of the conduit. This has the advantage, in situations where fluids are flowing through the conduit, of reducing the risk of fluids moving behind the sleeve and collapsing it inwardly.

The invention discloses a material dispersing device for a vertical grinder. The material dispersing device comprises a positive cone ring and a negative cone ring which are arranged in an annular space between a grinder shell of the vertical grinder and a grinding barrel of the vertical grinder; and the positive cone ring and the negative cone ring are distributed axially at a certain interval along the grinder shell. Due to the adoption of the material dispersing device for the vertical grinder, the falling time of a ground material ground with a roller mill in the falling process can be prolonged, the material is fully dispersed in the rolling processes of the positive cone ring and the negative cone ring and can be repeatedly impacted, dispersed and separated by rising air flow, the powder selecting efficiency is increased, and the yield of the grinder is remarkably increased. The invention further discloses a material dispersing device for a vertical grinder. The material dispersing device comprises dispersing plates obliquely arranged in an annular space between the grinder shell and the grinding barrel; a plurality of layers of dispersing plates are arranged at intervals along the axial direction of the grinder shell; and each layer of dispersing plates consists of a plurality of dispersing plates which are arranged at intervals along the circumference of the grinder shell.

The invention discloses a dragging steel belt which comprises a coating layer and multiple steel wire ropes arranged in the middle of the coating layer in a spaced manner. The multiple steel wire ropes are arranged on the same layer; each two adjacent steel wire ropes are opposite in twisting directions; each steel wire rope is of a two-layer twisting structure formed by a center strand and multiple outer-layer strands; each steel wire rope and the corresponding center strand are the same in twisting directions; the outer-layer strands and the corresponding center stand are opposite in twisting directions; the coating layer is adhered to the surfaces of the steel wire ropes; an elastic material of the coating layer is immersed into gaps of the steel wire ropes; and the coating layer is ofa flat structure. According to the dragging steel belt provided by the invention, the steel wire ropes have better flexibility and elasticity and are connected into a whole through the coating layer,so that the requirements on a breaking force and the ductility can be met, the fatigue life capacity of the product is greatly improved, a leveling effect of the steel belt is ensured, and the dragging steel belt is simple in structure and easy to realize standardization and mass production.

The invention discloses a collet of a gem nozzle for ultrahigh-pressure water cutting and belongs to the field of the manufacturing of water cutting machines. The collet comprises an inlet runner (1), a gem insert hole (2), an outlet runner A (3) and an outlet runner B (4), a special contour (5), a normal contour (6) and a colllet body (8), wherein the inlet runner (1) is decrementally conic and has a cone angle of 15 to 30 DEG; the cylindrical gem insert hole (2) is at the downstream of the inlet runner (1); the outlet runners are below the gem insert hole (2) and consist of the cylindrical outlet runner A (3) and the decrementally conic outlet runner B (4); the special contour (5) is provided with a cylindrical step with the height of 1 to 1.5mm; and the outlet end face (7) of the outlet runner B (4) has a wall thickness of 0.2 to 0.5mm and adopts edge cutting processing. The collet enhances the spout concentration of water jet during water cutting and increases cutting efficiency.

The invention discloses a good-deformation micro-sucker bionic impurity-removing wear-resistant anti-skid sole structure. The structure comprises a shoe sole and a plurality of anti-skid structures arranged on the shoe sole. A first impurity residue discharging liquid groove is formed between every two adjacent anti-skid structures, wherein all first impurity residue discharging liquid grooves aremutually connected. The anti-skid structure comprises an anti-skid disc and a plurality of annular anti-skid blocks arranged on the periphery of the anti-skid disc. Second impurity residue discharging liquid grooves, which are mutually connected, are formed between every two adjacent annular anti-skid blocks. Each annular anti-skid block is composed of a plurality of anti-skid bosses in an annular shape. Third impurity residue discharging liquid grooves, which are mutually connected, are formed between every two adjacent anti-skid bosses. The good-deformation micro-sucker bionic impurity-removing wear-resistant anti-skid sole structure is novel in design, simple in structure and convenient to use. The anti-skid structure can be attached to the ground from outside to inside through the concave cambered surface arranged at the top of the anti-skid structure. When annular anti-skid blocks and anti-skid discs on the anti-skid structure are attached to the ground, the anti-skid blocks andthe anti-skid discs can be adsorbed to the ground through arranged arc-shaped grooves. Therefore, the anti-skid resistance of the anti-skid structure and the ground is increased.

The invention belongs to the field of water conservancy construction, in particular to an anti-wind-wave dredging pipe for water conservancy construction. The anti-wind-wave dredging pipe comprises apipe body and an annular floating body fixedly arranged outside the pipe body in a sleeving manner. The annular floating body is formed by a deformation bag and a fixed box. The inner side wall of thefixed box is in sealed sliding connection with two sliding rings. A limiting block is arranged between the two sliding rings and is fixedly connected to the inner side wall of the fixed box. A guidepipe is arranged above the limiting block and sequentially penetrates through the fixed box and the side wall of the deformation bag. Permanent magnet columns are fixedly connected to the sides, awayfrom each other, of the two sliding rings. Heteropolar attraction is achieved between the two permanent magnet columns. Through holes are formed in the side walls of the fixed box, and a whistle pipeis mounted in each through hole. According to the anti-wind-wave dredging pipe, the two permanent magnet columns are driven to move through transverse impact force of sea waves to the pipe body, workis converted into magnetic potential energy in the parallel direction of the pipe body, the impact influence of sea waves on the pipe body is reduced, and the service life of the dredging pipe is greatly prolonged.

The invention relates to a fire fighting device, and discloses an extrusion type indoor fire hydrant. The extrusion type indoor fire hydrant comprises a hydrant body with an inner cavity, and the outer wall of the hydrant body is connected with a base and a connecting base. A valve clack capable of opening and closing an input channel is hinged to a port of the end, close to the inner cavity of the hydrant body, of the input channel. The outer wall of the hydrant body is further connected with a sleeve, and the sleeve and the base are arranged on the two opposite sides of the hydrant body correspondingly. The end, located outside the hydrant body, of the sleeve is in threaded connection with an adjusting bolt. The adjusting bolt stretches into the sleeve, and the front end of the adjustingbolt is provided with a first extrusion plate, an adjusting spring and a second extrusion plate, all of which are sequentially connected. The front portion of the adjusting bolt is provided with a rotation clamping block, and the rotation clamping block is clamped in a containing groove of the first extrusion plate. The face, away from the adjusting spring, of the second extrusion plate is connected with a transmission rod, and the two ends of the transmission rod are hinged to the second extrusion plate and the valve clack correspondingly. The extrusion type indoor fire hydrant achieves thepurposes that before an ignition source is extinguished, the input channel can be rapidly connected, water outflow can be rapidly stopped after the ignition source is extinguished, inner abrasion of the fire hydrant is reduced, and the service life is prolonged.

A locking differential mechanism for supplying torque from a driveshaft to a pair of aligned output shafts including a pair of side gears, a central driver, and a pair of clutch members operatively coupled for rotation with the corresponding one of the pair of side gears. A cam assembly includes a pair of cam members. Each of the pair of cam members includes a plurality of camming teeth extending toward the corresponding teeth on the opposed cam member. Each of the cam members is movable from a first position where the cam teeth are disposed in meshing relationship with respect to each other when the pair of side gears are rotating at substantially the same speed and a second position spaced axially from the first position along the associated side gear so as to move an associated clutch member from its first position to its second position out of driven relationship with the central driver in response to a difference in rotational speed of the associated pair of side gears.

A gas-liquid two-phase flow atomizing nozzle includes a nozzle core, an outer sleeve and an atomizing body. An inner cavity of the nozzle core consists of an inlet tapered section, a jet flow section and an outlet diffusion section. The outlet diffusion section of the nozzle core is connected to an atomizing body mixing chamber. The jet flow section of the nozzle core is in communication with external atmosphere through a core air inlet hole, an air inlet buffering chamber and a sleeve air inlet hole.

The invention provides an oil cooling system and a car, and relates to the technical field of cars. The oil cooling system comprises a gearbox, an oil cooler and a thermostat, wherein the thermostat comprises a housing, a first oil inlet tube, a first oil outlet tube, a second oil inlet tube and a second oil outlet tube; one end of the first oil inlet tube and one end of the first oil outlet tubecommunicate with the inner cavity of the housing; the other end of the first oil inlet tube and the other end of the first oil outlet tube communicate with the gearbox; one end of the second oil inlettube and one end of the second oil outlet tube communicate with the inner cavity; the other end of the second oil inlet tube and the other end of the second oil outlet tube communicate with the gearbox; a moveable assembly is arranged in the inner cavity; when the oil temperature is lower than a preset value, the moving assembly moves for disconnecting the inner cavity from the second oil inlet tube; and when the oil temperature is higher than or equal to the preset value, the moving assembly moves for enabling the inner cavity to communicate with the second oil inlet tube. The oil cooling system can keep the oil temperature at the optimal using temperature for a long time, so that oil consumption of an engine can be reduced; and moreover, the inner part of the gearbox is reduced, so thatthe service life of the gearbox is prolonged.

The invention provides a timing chain transmission mechanism. The timing chain transmission mechanism comprises a crankshaft sprocket, a gas inlet cam shaft chain wheel, an exhaust cam shaft chain wheel and a chain surrounding the crankshaft sprocket, the gas inlet cam shaft chain wheel and the exhaust cam shaft chain wheel. The timing chain transmission mechanism further comprises a first movable guide rail, a second movable guide rail and a two-way tensioner. The first movable guide rail and the second movable guide rail are oppositely arranged on the outer side of the chain. The two-way tensioner is clamped on the outer side of the first movable guide rail and the outer side of the second movable guide rail. The timing chain transmission mechanism has the beneficial effects that by means of cooperation of the first movable guide rail, the second movable guide rail and the two-way tensioner, the requirement for the strength of the chain in the timing chain transmission mechanism is lowered, and the internal abrasion of the chain is reduced; and meanwhile, because the chain is kept at the appropriate tightness degree all the time in the work operation process of the timing chain transmission mechanism, the problem that because the chain is too loose, the chain swings is solved, and vibration and noise of engines are reduced.

The invention relates to a novel revolving cup bearing which comprises an outer ring. Retainers are arranged at the two ends inside the outer ring, the retainers are matched with balls, and the balls are located in annular grooves in a central spindle. The positions, close to the retainers, of the outer circles at the two ends of the outer ring are respectively provided with a first oil filling hole and a step, the first oil filling holes are sealed by oil filling chock plugs, the steps are formed by first steps and second steps, second oil filling holes are formed in the first steps, T-shaped concave grooves are formed in the adjacent positions of the first steps and the second steps in the second steps, oil filling rings are arranged in the first steps in a sleeved mode, T-shaped convex blocks are arranged on the edges of the oil filling rings, and the convex blocks are embedded into the T-shaped concave grooves. The novel revolving cup bearing is simple in structure, the bearing can be lubricated well, the service life of the bearing can be prolonged, and the production cost of enterprises can be lowered.

The invention relates to the technical field of machining, and discloses a high-speed and stable tower-type boring and milling machining center, which includes a base warehouse and a controller. , the top of the central cylinder is fixed with a bearing seat, the bearing seat is rotatably connected with a turntable, the left cutting arm and the right cutting arm are symmetrically arranged on both sides of the turntable, the bearing seat is provided with a rotating mechanism that can drive the turntable to rotate, the left cutting arm and the right cutting arm The area of ​​one end of the arm connected to the turntable is 2-3 times the area of ​​the other end, and the side walls of the left cutting arm and the right cutting arm are variable sections. In this scheme, the variable section is used to make the weight of one end of the left cutting arm and the right cutting arm connected to the turntable greater than the weight of the other end, while ensuring the rigidity of the left cutting arm and the right cutting arm, the center of gravity of the left cutting arm and the right cutting arm is close to the turntable Center, so as to reduce the torque on the rotating mechanism, reduce the internal wear of the rotating mechanism, suppress the frequency of the resonance source, and avoid affecting the processing accuracy.

A gas-liquid two-phase flow atomizing nozzle includes a nozzle core, an outer sleeve, and an atomizing body. An inner cavity of the nozzle core consists of an inlet tapered section, a jet flow section, and an outlet diffusion section. The outlet diffusion section of the nozzle core is connected to an atomizing body mixing chamber. The jet flow section of the nozzle core is in communication with external atmosphere through a core air inlet hole, an air inlet buffering chamber, and a sleeve air inlet hole.

The rope degradation detection device of the present invention has: a pair of supporting parts, its support ropes to bend the rope; bending to the department, which is bent to the rope supported by a pair of supporting parts;The reaction force obtained the department, and its bending force was given to the reaction force of the bending state by the bending department; the scratching department, the quantity of the bending state given by the bending department;The relationship between the reaction force obtained by the force and the deflection of the force and the deflection amount is calculated to calculate the determination parameter, and determine the degradation state of the rope.

The invention belongs to the field of water conservancy construction, and in particular relates to a wind and wave dredging pipe for water conservancy construction, comprising a pipe body and an annular floating body fixedly sleeved on the outside of the pipe. Two slip rings are sealed and slidably connected to the inner side wall of the box, and a limit block is arranged between the two slip rings, the limit block is fixedly connected to the inner side wall of the fixed box, and a limit block is provided above the The guide pipe runs through the side walls of the fixed box and the deformation bag in turn, and permanent magnet columns are fixedly connected to the sides of the two slip rings that are far away from each other. A through hole is arranged on the side wall of the fixed box, and a whistle pipe is installed in the through hole. In the invention, the impact force of the waves on the pipe body laterally drives the two permanent magnet columns to move, and the work is converted into magnetic potential energy along the parallel direction of the pipe body, which reduces the impact of the waves on the pipe body and greatly prolongs the service life of the dredging pipe.

A magnetic roller for electrophotography comprises a foamed resin magnetic material. A method of producing a magnetic roller comprises the steps of providing magnetic filler, a resin binder and a foaming agent in a closed mold; activating the foaming agent in the closed mold; and removing the resulting formed roller from the mold.

The invention discloses a guard plate device for a train, the train and a rail transit system. The guard plate device comprises a guard plate assembly and a sliding assembly. The guard plate assemblycomprises a first guard plate, the first guard plate is located between two adjacent train bodies on the train, the sliding assembly comprises a sliding rail and a sliding piece which are matched in asliding mode, one of the sliding piece and the sliding rail is suitable for being directly or indirectly arranged on the train bodies, and the other one of the sliding piece and the sliding rail is arranged on the first guard plate. The guard plate device for the train is simple in structure, low in cost, capable of reducing abrasion and reliable in use.

The invention discloses a good-deformation micro-sucker bionic impurity-removing wear-resistant anti-skid sole structure. The structure comprises a shoe sole and a plurality of anti-skid structures arranged on the shoe sole. A first impurity residue discharging liquid groove is formed between every two adjacent anti-skid structures, wherein all first impurity residue discharging liquid grooves aremutually connected. The anti-skid structure comprises an anti-skid disc and a plurality of annular anti-skid blocks arranged on the periphery of the anti-skid disc. Second impurity residue discharging liquid grooves, which are mutually connected, are formed between every two adjacent annular anti-skid blocks. Each annular anti-skid block is composed of a plurality of anti-skid bosses in an annular shape. Third impurity residue discharging liquid grooves, which are mutually connected, are formed between every two adjacent anti-skid bosses. The good-deformation micro-sucker bionic impurity-removing wear-resistant anti-skid sole structure is novel in design, simple in structure and convenient to use. The anti-skid structure can be attached to the ground from outside to inside through the concave cambered surface arranged at the top of the anti-skid structure. When annular anti-skid blocks and anti-skid discs on the anti-skid structure are attached to the ground, the anti-skid blocks andthe anti-skid discs can be adsorbed to the ground through arranged arc-shaped grooves. Therefore, the anti-skid resistance of the anti-skid structure and the ground is increased.

The invention relates to fire-fighting equipment, and discloses a novel fire hydrant. A fire hose is arranged outside a hydrant body, the fire hose is connected with an internal water pipe, and a firehose connecting base and the hydrant body are provided with opening iron columns. A button is arranged above the hydrant body, a spring is arranged below the button, a groove is arranged below the spring, the groove is tightly connected with the groove above the water pipe, and thus an internal water pipe lower opening is connected with a fixed water pipe. The novel fire hydrant can realize the purposes of quick blocking and connecting a water source, and achieves the effects that a water outlet can be rapidly connected before an ignition source is extinguished, water can be rapidly blocked after the ignition source is extinguished, internal abrasion of the hydrant is reduced, and the service life is prolonged.

The invention discloses a boiler slag cooler and an installation method thereof.The left side of a barrel is an inlet end, the right side of the barrel is an outlet end, a tube bundle assembly is provided with a plurality of sets of inner cavities distributed in the barrel at equal intervals, the rightmost sides of all sets of finned tubes are jointly communicated with elbows, and the elbows are arranged in the inner cavities. The upper end of the elbow penetrates through an inner cavity of the barrel body and extends to the outer side to be communicated with the water collecting tank, a plurality of external water pipes are fixedly connected to the outer side of the barrel body, the spiral assembly is provided with a plurality of sets of inner cavities distributed in the barrel body at equal intervals, and the spiral assembly comprises a plurality of sets of different blades; according to the finned tube, the problem of a heating surface is effectively solved by increasing the diameter of the pipeline, increasing the number of the tube rows and changing the structure of the finned tube, meanwhile, the spiral pieces are replaced according to the actual condition of the barrel, and internal abrasion is further reduced; and the service life of the device is greatly prolonged.

The invention discloses an exercise bicycle exercise conveying device. The exercise bicycle exercise conveying device mainly comprises a frame, a rotating disc, a bottom plate, an outer frame, a generator, a transmission shaft and an opening and closing mechanism; symmetrically-arranged supporting plates are fixedly installed in the middle of the top end of the bottom plate, middle shafts are rotatably installed on the upper portions of the supporting plates, supports are fixedly installed in the middles of the outer side of the middle shafts, and driven discs are fixedly installed at the rearends of the middle shafts. The exercise bicycle exercise conveying device is reasonable in structural design, resistance of the exercise bicycle exercise conveying device is provided by the generator, the internal abrasion is small, the maintenance period is long, the contact area of the transmission gear ring and the gear is large, the gear ring can be connected and replaced, the service life islonger, maintenance is convenient, the strength can be changed, the use is convenient, and the applicability is high; the exercise bicycle can perform voltage-stabilizing power supply, can supply power consumption to external equipment, and is healthier, more environment-friendly and good in practicability.

The invention discloses an anti-deformation mechanical mold. The anti-deformation mechanical mold comprises a fixed bottom plate, a mold bottom plate and a fixed plate; the mold bottom plate is arranged above the fixed bottom plate and the mold bottom plate is welded in the fixed bottom plate; a mold top cover is arranged above the fixed bottom plate and the mold top cover is embedded and arrangedin the mold bottom plate; a heat-insulating cavity is formed in the mold top cover; liquid in the heat-insulating cavity is difficult to evaporate and the specific heat capacity is small, so that generation of mechanical parts stress of the mold is reduced by rapidly using the temperature of the part in the mold; and a spring is arranged in the mold bottom and is used for buffering and eliminating stress generated by the mechanical part, and through combination, the stress accumulation phenomenon generated by the fact that the surface of the mechanical part structure is complex and changeabledue to the stress and the residual stress remained by a heat treatment process such as quenching do not occur on the mechanical part in the anti-deformation mechanical mold is avoided, and the problem that the produced mechanical part is liable to deform is solved.