43results about How to "Reduce tangential force" patented technology

The invention aims to provide a rolling bearing that secures a sufficient bearing life economically even when used under such conditions that water from the outside or water formed by moisture condensation may seep into the lubricant or the bearing is affected by the vibrations, and particularly a rolling bearing suited to the electric parts and accessaries of au automobile engine, such as an alternator. To accomplish the object, the hydrogen ion exponent pH of the grease sealed into the inside of the bearing is adjusted in a range of from 7 to 13. For the same purpose, the hydrogen ion exponent pH of the grease is adjusted in a range of from 5 to 13 where a prescribed amount of an organic metal salt or ADTC is added to the grease, where a prescribed amount of an inorganic compound having an average particle size of 2 squarem or smaller is added to the grease, or where a diurea compound containing an aromatic amine or a mixture of the diurea compound is added to the grease as a thickener.

The invention discloses a spherical hammer head of a combined crusher and a manufacturing method thereof. The hammer head comprises a spherical hammer end (1) and a hammer handle (2); the spherical hammer end (1) and the hammer handle (2) are combined into the integral hammer head through a connecting rod (3); the spherical hammer end is cast by adopting an alloy high-chromium cast iron losing die; and the hammer handle is made of No. 45 round steel by a metal processing and cutting method. The spherical hammer head of the crusher has the advantages of abrasion resistance, good toughness, quick replacement of the spherical hammer end and long-term use of the hammer handle, improves the production efficiency, saves the metal material, and is particularly suitable for manufacturing hammer heads of reversible small and medium hammer crushers.

Tangential forces present at the mating area between a clamp-on transducer and a pipe can be made very small in order to provide a higher quality, more stable acoustic coupling. In some cases this is accomplished by providing a low friction bearing on a surface of a transducer housing. This bearing may be a slippery surface portion, or may involve a rotary bearing mounted on the housing. In other cases, where a steel pipe is used, pairs of permanent magnets coupled by a yoke can provide the desired clamping force directed solely along a radius of the pipe.

The invention discloses a rotary impact cushioning safety helmet. The rotary impact cushioning safety helmet comprises a shell and an elastic lining in the shell, a gap is formed between the shell andthe elastic lining, and a rotary impact cushioning device which makes the shell rotate relative to the elastic lining is arranged between the shell and the elastic lining. When the safety helmet is impacted by external force, the upward component force in the external force, which tangentially acts on the shell, makes the shell tend to rotate relative to the elastic lining. By means of the rotaryimpact cushioning safety helmet, through the tangential deformation of the rotary impact cushioning device, the shell can rotate by a certain angle relative to the elastic lining on the premise thatthe elastic lining relatively stays still, and accordingly, the cushioning effect that the impact of the external force on a user is greatly reduced is achieved.

The invention discloses a soft wearable robot for elbow movement function rehabilitation. The soft wearable robot comprises a soft wearable robot body assembly, an air cylinder, an electromagnetic proportional valve and a controller; the soft wearable robot body assembly is composed of an outer elbow sleeve, an inner elbow sleeve, a flexible bending sensor and a soft actuator assembly; and the soft actuator assembly comprises a flexible pipe, a first end sealing piece, a second end sealing piece, an air guide pipe, a woven mesh sleeve, a first end fastening piece, a second end fastening piece, a first limiting layer, a second limiting layer, a joint extension layer and a third limiting layer. The three limiting layers form a limiting structure with the elasticity modulus gradually changed on the two sides, so that the motion characteristic of the soft actuator assembly conforms to the motion characteristic of the elbow of the human body, tangential sliding between the soft actuator assembly and the skin of the elbow joint of the human body is relieved, and auxiliary force distribution is more uniform; and the joint extension layer of the soft body actuator assembly has certain axial ductility, so that the discomfort of a user is reduced.

The invention relates to a strength-controllable adhesion device. The adhesion device comprises a supporting piece for supporting the strength-controllable adhesion device, an adhesion unit arranged at one end of the supporting piece, a micro-vibration excitation generation module arranged between the supporting piece and the adhesion unit and a micro-vibration excitation adjusting and amplifying module arranged in the supporting piece; one end, far away from the supporting piece, of the adhesion unit makes contact with an adhesion interface; one end of the micro-vibration excitation generation module is fixedly connected with the supporting piece, the other end is fixedly connected with the adhesion unit, and the micro-vibration excitation generation module drives the adhesion unit to generate micro-vibration; a communication interface is arranged on the micro-vibration excitation adjusting and amplifying module, and the micro-vibration excitation adjusting and amplifying module is connected with the micro-vibration excitation generation module to adjust the vibration frequency and amplitude of the micro-vibration excitation generation module. The invention also relates to a regulation and control method of the device. According to the method, the micro-vibration frequency and amplitude can be adjusted according to the requirements, and stable adhesion strength adjustment of a target adhesion object can be realized, so that quick switching of adhesion and detachment is completed. The problems that existing adhesion fails difficultly and the strength between adhesion interfaces cannot be regulated and controlled can be effectively solved.

The invention discloses a method for manufacturing a rubber sealing ring of a dam gate. The method includes: manufacturing a rubber sealing ring, and reserving a plurality of sensor mounting holes in the rubber sealing ring; mounting a plurality of sensors in the mounting holes; and sealing the sensors in the rubber sealing ring by vulcanizing twice. The rubber sealing ring manufactured by the method is simple in structure, and compression change of the rubber sealing ring of the flood discharging dam gate can be sensitively detected, so that aging degree of the sealing ring is judged, and accidents of a dam are prevented.

The invention discloses a cooling coating for a light-emitting diode (LED) lamp and a preparation method thereof. The coating comprises the following components by weight percent: 30-55% of acrylic resin, 10-20% of amino resin, 5-10% of aluminium nitride, 2-15% of carbon fiber, 3-8% of pigment, 5-15% of mica, 1-2% of anti-settling agent, 10-20% of solvent, 1-2% of dispersant and 0.5-2% of flatting agent. The preparation method comprises the following steps: during preparation, mixing and grinding raw materials, and then dispersing the raw materials by a disperser; controlling the fineness of the coating within 15-30mu m, filtering and removing impurities, thereby obtaining the cooling coating. The cooling coating for the LED lamp disclosed by the invention has high radioactivity and high heat conductivity, and is sprayed on the surface of an LED apparatus; the temperatures on the surfaces of the apparatuses such as an LED lamp aluminum substrate and a cooling shell can be greatly reduced by the formed coating; the coating has the characteristics of excellent mechanical property and protection function, good waterproofness and weather fastness, and the like.

The invention discloses a rim assembly for automatically adjusting wind resistance, which includes a rim and spokes, the spokes are fixed on the rim, and rim windows are formed between the spokes, and the rim assembly also includes venetian blinds; the spokes An accommodating groove is provided along the side for accommodating the venetian blind; a groove is provided on the side of the rim close to the window of the rim, and the elastic member is connected to the venetian blind to rotate along the groove for shielding or Partially blocking the rim window, the present invention also provides a vehicle, the vehicle has the rim provided above, the present invention can realize the adjustment of the drag coefficient according to different vehicle speeds, and at the same time ensure the heat dissipation requirements of the brake.

The invention provides a bionics-based end mill with a special groove profile and a micro blade structure. The cutting edge part comprises peripheral cutting teeth and a chip pocket, the tooth number of the peripheral cutting teeth is 4, the peripheral cutting teeth consist of a first front mill surface, a second front mill surface and a rear mill surface, the radial profile of the first front mill surface is linear, the radial profile of the second front mill surface is in the shape of a parabola, and the coordinates of all points on the radial profile of the second front mill surface meet a parabola equation; the radial profile of the rear mill surface is linear; the chip pocket comprises the two parts of a main groove and an auxiliary groove, the main groove is connected with the second front mill surface, the radial profile of the main groove is in the shape of a parabola, the coordinates of all points on the radial profile of the main groove meet the parabola equation, the auxiliary groove projects outwards and is connected with the main groove and the rear mill surface, and the coordinates of all points on the radial profile of the auxiliary groove meet an equation: y=ax3+bx2+cx+d. The end mill has excellent strength and can inhibit the production of zigzag chips during titanium alloy processing. The cutting process is smoother, the workpiece surface quality is improved, and the service life of the mill is prolonged.

The invention relates to opposite roller spinning equipment, in particular to opposite roller spinning equipment for forming a large thin-walled cylindrical part, and aims to solve the problems that existing die spinning equipment is high in cost, poor in universality and long in manufacturing period as a core die is needed. A chuck substrate fixing base is installed on a rack between an internal rotation guide rail and an external rotation guide rail, a chuck substrate is installed on the chuck substrate fixing base, an external rotation mechanism fixing base is installed on the external rotation guide rail in a sliding mode, and an external rotation disc is installed on the external rotation mechanism fixing base; a bottom plate is installed on an internal rotation guide rail, a lifting motor is installed at the lower end of the bottom plate, one end of a lifting lead screw penetrates through the bottom plate, and the other end of the lifting lead screw is connected with a base; an internal rotation device fixing base is installed on the bottom plate, a worm and gear assembly is installed on the chuck substrate, a three-claw chuck is installed on the worm and gear assembly, multiple pull rods are connected with the external rotation disc, the chuck substrate and the base, an internal rotation device is installed in the internal rotation device fixing base, and the external rotation device is installed in the external rotation disc. The opposite roller spinning equipment is suitable for carrying out opposite roller spinning on the large thin-walled cylindrical part.

The invention discloses an automatic hydraulic angle cutter for producing a picture frame. The automatic hydraulic angle cutter comprises a framework, a longitudinal hydraulic cylinder, a beveling knife, a left inductive switch and a right inductive switch, wherein the side edge of the framework is provided with a mounting plate; the mounting plate is provided with a top limit inductive switch, a middle touch inductive switch and a bottom limit inductive switch in sequence from top to bottom; a transverse hydraulic cylinder is arranged below the middle touch inductive switch; the transverse hydraulic cylinder is connected with the beveling knife; a motor hydraulic pump is connected with the longitudinal hydraulic cylinder and the transverse hydraulic cylinder respectively; a controller is arranged in an electric control cabinet; the controller is connected with the longitudinal hydraulic cylinder, the transverse hydraulic cylinder, the motor hydraulic pump, the left inductive switch, the right inductive switch, the top limit conductive switch, the middle touch inductive switch and the bottom limit inductive switch respectively. The invention also discloses a realization method of the automatic hydraulic angle cutter for producing the picture frame. The automatic hydraulic angle cutter for producing the picture frame has the characteristics of being simple in structure, low in manufacturing cost, tidy in section, high in production efficiency, high in degree of automation, and the like.

The invention discloses a cell separation cup with high extraction purity. According to the technical scheme, the suction cup comprises a cup body, a cup cover, a suction pipe, a sterile pipe and a separation body arranged in the cup body, the separation body divides the interior of the cup body into an upper space and a lower space, and the top of the separation body is connected with the sterile pipe in a welded mode; the straw comprises a vertical section arranged outside the cup body and a bent section capable of penetrating through the wall of the cup body and the separation body to enter the lower space, and the bottom of the bent section is flush with the bottom of the separation body. According to the scheme provided by the invention, the suction tube can be prevented from damaging cells during centrifugation, residual cells in gaps are avoided, and the collection purity is improved.

The invention relates to a controllable-strength adhesion device, which includes a support member providing support for the controllable-strength adhesion device; an adhesion unit is arranged at one end of the support member, and the end of the adhesion unit away from the support member is in contact with the adhesion interface; The micro-vibration excitation generation module between the units, one end of the micro-vibration excitation generation module is consolidated with the support, and the other end is consolidated with the adhesion unit, and the micro-vibration excitation generation module drives the adhesion unit to generate micro-vibration; The excitation adjustment amplification module is provided with a communication interface, and the micro-vibration excitation adjustment amplification module is connected with the micro-vibration excitation generation module to adjust its vibration frequency and amplitude. It also relates to the regulation method of the device, the method can adjust the frequency and amplitude of the micro-vibration according to the demand, and can realize the adjustment of the stable adhesion strength to the target adherent, so as to complete the fast switching between adhesion and desorption. The invention can effectively solve the existing problems of difficult adhesion failure and uncontrollable strength between adhesion interfaces.

The invention discloses a method for manufacturing a rubber sealing ring of a dam gate. The method includes: manufacturing a rubber sealing ring, and reserving a plurality of sensor mounting holes in the rubber sealing ring; mounting a plurality of sensors in the mounting holes; and sealing the sensors in the rubber sealing ring by vulcanizing twice. The rubber sealing ring manufactured by the method is simple in structure, and compression change of the rubber sealing ring of the flood discharging dam gate can be sensitively detected, so that aging degree of the sealing ring is judged, and accidents of a dam are prevented.

The invention belongs to the technical field of public lighting equipment, and particularly relates to a hidden dustproof street lamp capable of freely descending, ascending and overturning. The hidden dustproof street lamp comprises a lamp post, a top cover, a bottom plate, a power part, a lifting part, an overturning part and a lighting part; through joint operation of the power part, the transmission part and the overturning part, the lighting part is hidden in the sliding groove; due to the fact that the street lamp is arranged on the roadside where dust is large, the lighting part is hidden in the sliding groove, so that compared with an existing street lamp, the lighting part is protected against damage, and the dustproof effect of the lighting part can be achieved; the lighting partcan be automatically lowered to a proper height, so that workers can maintain the lighting part conveniently, workers do not need to work at a high place, and the construction risk of the workers isgreatly reduced; and the angle of the lighting part during lifting can be controlled, so that the light angle of the street lamp can be adjusted according to environmental conditions.