409results about How to "Low sliding resistance" patented technology

The surface mounting machine of the present invention can set the load applied to the component below the weight of the movable part when the cushioning effect is exerted on the position of the lower end of the head when the component is sucked and mounted, and the load can be adjusted effectively. And the structure for adjusting the load can be easily maintained. The surface mounting machine includes a suction nozzle (31) and a component holding the suction nozzle, which is installed on the suction nozzle shaft (21), and a movable part that can relatively move a predetermined amount relative to the suction nozzle shaft in the up and down direction ; arranged between the above-mentioned nozzle shaft (21) and the above-mentioned movable part, a pressure chamber (70) for adjusting the pressing force applied to the above-mentioned movable part; and for providing pressure to the above-mentioned pressure chamber (70) The pressure supply device (80); the pressure supply device (80) can adjust the pressure provided to the above-mentioned pressure chamber (70) within the range from positive pressure to negative pressure.

A disc brake device is provided with a wedge rod (20) axially moved by an actuator (4) and orthogonally arranged to a wheel axle, a wedge (5) mounted on the wedge rod (20) and having an inclined surface, a main roller (6) rolling on the inclined surface, and a link (12) rocking in accordance with a movement of the main roller (6). An intermediate portion of the link (12) and a base end of the brake arm (3) are coupled via a gap adjusting mechanism (14). The base end of the brake arm (3) is boosted, pressed, and expanded in accordance with the movement of the main roller (6), and a brake pad disposed at a rocking end of the brake arm (3) is pressed and actuated. A pair of sub-rollers capable of rolling on guide rails are disposed coaxially with the main roller (6) on both sides of the main roller (6).

The invention discloses a novel multifunctional box type joined wing water unmanned aerial vehicle. The novel multifunctional box type joined wing water unmanned aerial vehicle comprises a ship body type vehicle body (1), a box type joined wing (2), a vertical empennage (3), a propeller propelling plant (4), a vehicle body load (5), and a wing solar power system (6); the ship body type vehicle body (1) comprises an upper arc vehicle body (11), a bottom multi-level fault rectifying ship body (12), and inhibiting spattering bilges (13); the bottom multi-level fault rectifying ship body (12) is provided with the upper arc vehicle body (11), and the inhibiting spattering bilges (13) on the two sides of the bottom part are located on the two sides of the bottom part of the ship body type vehicle body (1). The water unmanned aerial vehicle is higher in lift-drag ratio, the lift-drag ratio is more than 19, the water surface landing performance is good, the novel multifunctional box type joined wing water unmanned aerial vehicle is adaptable to various complicated water surface landing conditions, the capability of operating on the water surface for a long period of time is realized, and the novel multifunctional box type joined wing water unmanned aerial vehicle is excellent in adaptability.

Roller receiving step portions are formed in both sides of a bottom portion of a main body portion in a lower rail. A roller is inserted between the step portions in the lower rail and an upper wall in an upper rail. Left and right roller portions are formed so as to be separated into left and right sections in a substantially center portion of the roller. An elastic washer corresponding to an elastic body is inserted to a roller shaft at the separated position of the roller. Taper surfaces are formed in both side portions of the roller and are mounted on taper surfaces formed in the step portions in the lower rail and downward inclined toward a center in a width direction.

The invention discloses a bracket-free floating air pressure caliper disc brake. The brake comprises a mounting plate (1), a brake caliper assembly (2), two guide pins (3), a screw (4), a friction plate (5), a pressure spring (6) and a pressure plate (7), wherein the mounting plate (1) is provided with a central through hole, the central through hole is centered on a non-steering axle, and the brake caliper assembly (2) is directly fixed on the mounting plate (1) through the guide pins (3). The brake has simple structure, is convenient to assemble and maintain, cancels a bracket, saves the cost and the assembly step, meanwhile, can ensure the braking performance, and eliminates the negative effect of canceling the bracket.

The invention discloses an automatic shellfish collection device. The automatic shellfish collection device comprises a shoveling device, a diagonal conveying device and a filtering and collecting device. The shoveling device comprises an arc-shaped shovel blade with a low front side and a high rear side, a filtering plate fixedly connected with the rear side of the arc-shaped shovel blade and a plurality of shovel blade connection rods, wherein the front ends of the shovel blade connection rods are fixedly connected with the arc-shaped shovel blade. The diagonal conveying device comprises an upper diagonal driving belt, an upper rolling rod, a lower rolling rod and a an upper stop plate, the upper diagonal driving belt is arranged in rear of the filtering plate, the upper rolling rod and the lower rolling rod are arranged at the upper end and the lower end of the upper diagonal driving belt respectively and drive the upper diagonal driving belt to rotate, and the upper stop plate is arranged above the upper diagonal driving belt. The rear ends of the shovel blade connection rods are fixedly connected with the top of the upper stop plate. The filtering and collecting device comprises a filter screen with a high front side and a low rear side and a V-shaped net cage arranged in rear of the filter screen, and the filter screen is arranged in rear of the upper diagonal driving belt. The automatic shellfish collection device has the advantages of simple structure, low collection cost, high efficiency and low missing rate.

A press die composed of an upper die having a concave part (with the peripheral surface of the opening of said concave part functioning as a first blank pressing face), a lower die having a convex part (to form the blank into a desired form in cooperation with said concave part), and a blank holder (which has a second blank pressing face), said press die working in such a way that said first blank pressing face and said second blank pressing face hold a blank between them while permitting it to flow into said concave part during pressing, characterized in that at least either of said first blank pressing face and said second blank pressing face has a roughened surface with a plurality of striated projections which are formed in the direction inclined in a range of -25° to +25° (preferably approximately parallel) toward the circumferential direction of the edge of the opening of said concave part. The press die permits the blank to slide easily and hence prevents the blank from decreasing in thickness during press forming.

The invention relates to a magnetic attraction type glass cleaner. According to the technical scheme of the invention, a glass wiper comprises an lengthening rod (1), an internal wiper body (2), an external wiper body (3) and a manual spraying barrel (4), wherein an water outlet of the manual spraying barrel (4) is connected with the external wiper body (3) through a flexible pipe. An external side face of an internal wiper body interlayer (13) is provided with 3-10 first magnetic substances (6), 2-10 first rollers (10), internal wiper body wiping cloth (9), 2-10 second rollers (8), 3-10 second magnetic substances (6) and an internal wiper body scraping plate (5) in sequence from top to bottom; the external side face of an external wiper body interlayer (36) is provided with 3-10 third magnetic substances (34), 2-10 third rollers (33), a strip-shaped groove (30), external wiper body wiping cloth (29), a fourth roller (28), a fourth magnetic substance (26) and an external wiper body scraping plate (25) in sequence from top to bottom, wherein the trip-shaped groove (30) is provided with a spraying control device (32) and 1-7 atomizing nozzles (31). The magnetic attraction type glasscleaner is convenient to use, and the wiper bodies cannot drop easily; and the magnetic attraction type glass cleaner has excellent scrubbing effect, and is suitable for scrubbing glass with different cambered surfaces.

The present invention relates to a pillar insulator assembly and a GIL system. The insulator assembly comprises an insulator with at least two pillars; one end of each pillar adjacent to the barrel is provided with a metal insert; at least one pillar of the insulator is provided with a grounding structure; the grounding structure comprises a floating shell and a conductive member which is directively arranged on the floating shell; the pillar corresponding to the grounding structure is provided with a limiting structure for stopping and limiting the floating shell, so as to prevent the floating shell from contacting with the barrel; the conductive member is stopped in a radially outward direction by the floating shell; and the grounding structure further comprises a resilient force which is provided radially outward for the conductive member and is arranged between the metal insert and the conductive member to ensure the compression spring contacted between the conductive member and the barrel. According to the pillar insulator assembly provided by the present invention, the floating shell is limited in a radially outward direction by using the pressing plate, so that the contact between the floating shell and the barrel is avoided, the contact area between the pillar insulator assembly and the barrel is reduced, the slide resistance is reduced, and the assembly is easy to be installed.

The invention discloses carbon nitride solid particles and diesel engine oil composition containing the same, and belongs to the field of engine lubricating oil production. The solid particles are prepared from C3N3Cl3 and C3N3(NH2)3 under the environment of nitrogen gas and high temperature, and have the characteristics of many lamellas, low sliding resistance between lamellas, small particles, capability of suspending in oil and the like. The engine oil composition is formed by mixing lubricating oil basic oil, high-dispersibility carbon nitride emulsion, a viscosity index improver, a dispersant, a cleaning agent, an anti-oxidant and anti-corrosive agent, a base number storage agent and a defoaming agent. When the engine oil composition is applied to a diesel engine, engine cylinder pressure can be obviously improved; and the engine oil composition is environmentally-friendly and energy-saving and has great popularization and application value.

The invention relates to a seamless track stress dispersion rail collision device which comprises a hydraulic pump device, an impact device and a rail collision device, wherein the hydraulic pump device is communicated with the impact device through an oil inlet and an oil outlet; one end of the impact device is fixed on an iron rail, the other end of the impact device is provided with a punch, and the punch movably collides the rail collision device. The whole rail collision process is performed automatically and circularly, so that the low-power hydraulic pump device can reach high power impact effect by means of the impact device, and an engine can not be shut down to complete stress dispersion work until the local displacement of the steel rail reaches the stated requirement of stress dispersion. The invention can be used for rapidly and efficiently completing the stress dispersion work of the seamless track, greatly reducing the labor intensity of workers, and reducing the number of working personnel. The device is a novel machine tool applicable to the seamless track stress dispersion work.

The invention discloses a high frequency macro-energy hydraulic pile hammer which comprises a hydraulic pump and a hammer core, wherein the hydraulic core comprises an inner cylinder sleeve and an outer cylinder sleeve mounted in a spaced manner in a sleeving manner, and an oil inlet channel is formed between the inner cylinder sleeve and the outer cylinder sleeve; a piston rod fixedly connected to a piston penetrates through a cylinder cover and a static supporting sleeve axially to be supported on the static supporting sleeve, a cylinder oil inlet and a cylinder oil outlet are formed in thecylinder bottom, the cylinder oil inlet is communicated to the oil inlet channel between the inner cylinder sleeve and the outer cylinder sleeve; the oil inlet channel is communicated to a rod cavityof the hydraulic cylinder through the oil inlet hole in the inner cylinder sleeve, and a cylinder oil return hole is communicated to a rodless cavity of the hydraulic cylinder; the oil outlet of the hydraulic pump communicates to the cylinder oil inlet and a pressure oil hole of a second inserting valve in parallel, and an oil hole B of the first inserting valve is connected to the cylinder oil outlet; and a control valve as a pilot valve forms a direction control loop with the second inserting valve. The hydraulic pile hammer is simple and reasonable in structure and small in influence on ambient environment, can drive a pile at a high frequency with micro-energy, so that the hydraulic pile hammer is particularly suitable for large foundation pile construction.

Provided is a parking lock mechanism for a power transmission system such that lubricating oil can be stably supplied to the sliding surface of a parking cam, resulting in the sliding resistance of the parking cam being reduced. The parking lock mechanism (52) is such that a support section (73) for positioning a sleeve (71) in an extension housing (6) is provided with a first guide rib (74) which catches oil circulating in a transmission axle case (4) and supplies said oil to the support section (73), that furthermore, a cutout (71c) for causing a parking pawl (62) to abut a parking cam (61) is formed in the upper portion of the sleeve (71), and that the oil caught by the first guide rib (74) is supplied via the support section (73) and the cutout (71c) in the sleeve (71) to the sliding surfaces of the parking cam (61), that is, to the sliding surface between the parking pawl (62); and the parking cam (61) and to the sliding surface between the parking cam (61) and the sleeve (71).

Provided is an ultrathin wheel shaft type wheel hub motor, composed of an ultrathin wheel hub, a semiaxle motor, a planet secondary decelerator and a wheel fork frame. The semiaxle motor and the planet secondary decelerator are integrated to form a wheel shaft type wheel hub motor; the planet secondary decelerator is installed in the ultrathin wheel hub; the semiaxle motor is equivalent to a right wheel hub semiaxle. According to the invention, original structure contradictions of a mini type wheel hub motor which are difficult to solve are cleverly and effectively solved, thereby achieving the purposes of increasing a gear reduction ratio, improving motor revolving speed and efficiency, mitigating a motor weight and wheel hub crotch size, and simplifying a motor whole structure; an overrunning clutch flywheel in a reducing mechanism allows same sliding effects of an electric bicycle same and a bicycle; the weight of an ultrathin wheel shaft type reducing motor is less than two kilograms, and a crotch size is less than 70 mm. The ultrathin wheel shaft type wheel hub motor has the characteristics of high performance and low cost, and possesses outstanding features and market competition advantages.

Noise occurring when an upper rail is slid on a lower rail with retainers in contact with either or both of the rails is suppressed. A vehicle seat slide device (10) has the lower rail (11), the upper rail (12), the retainers (13) disposed between both rails (11, 12), and rolling elements (steel balls) rollably supported by the retainers (13) and rolling while being in contact with both rails (11, 12). Each retainer (13) has a retainer body (13d) and projections (13a, 13b, 13c) projecting from the retainer body (13d). The projections (13a, 13b, 13c) are formed of a resin material integrally with the retainer body (13d). Because of the projections (13a, 13b, 13c) formed on the retainer (13), when the retainers (13) make contact with both rails (11, 12), the projections (13a, 13b, 13c) invariably make contact with both rails (11, 12).