15013 results about "Steel ball" patented technology

The invention relates to the technical field of oil and gas well production increase and fracturing operation, in particular to a horizontal well hydraulic directional spraying gun. The horizontal well hydraulic directional spraying gun comprises a directional split tooth cylinder, an enveloping line sleeve, a directional steel ball, thrust bearings and nozzles. The directional split tooth cylinder and an upper connector form an annular space, a reset spring is arranged in the annular space, the right end of the upper connector is connected with an upper housing, the enveloping line sleeve issleeved with the interior of the upper housing, a central rod penetrates through the interior of the enveloping line sleeve to be connected to an internal thread at the right end of the directional split tooth cylinder, and a closed space is defined by the upper housing, the directional split cylinder and the enveloping line sleeve; the directional steel ball is placed in the closed space, the right end of the upper housing is in threaded connection with a connecting sleeve, the thrust bearings are symmetrically disposed at both ends of the connecting sleeve, and the right end of the enveloping line sleeve is connected with a spraying gun casing. Forced orientation of the spraying gun casing can be achieved by a hydraulic driving mode, the orientation success rate is high, tools can be reused after maintenance and protection, and the cost is low.

The invention relates to a ball-type valve assembly structure, and belongs to the technical field of oil-gas exploitation equipment. The ball-type valve assembly structure comprises a valve seat, valve rubber arranged on the inner side of the valve seat, a steel ball positioned above the valve rubber, and a ball cage positioned outside the steel ball, a first clamping piece is arranged on the lower portion of the outer side of the ball cage, a second clamping piece matched with the first clamping piece is arranged on the upper portion of the inner side of the valve seat, and an elastic piece is arranged between the valve seat and the ball cage. The ball-type valve assembly structure has the advantages that the valve seat is connected with the ball cage through a clamping groove structure so that the situations that the clamping stagnation occurs and dismounting is difficult due to sand particle entering can be avoided, and the working efficiency of dismounting and checking a pump can be improved.

A custom-fabricated golf club device comprising a golf club head with a recessed portion located at the front heel portion of the head and machined therein, the recessed portion comprising a substantially semi-spherical aperture. A hosel assembly has a lower portion, having a substantially semi-spherical aperture that aligns with the aperture of the head recessed portion, the hosel assembly further having a recessed portion at an upper portion thereof. A steel ball is located securely within the aperture of head recessed portion and the aperture of the hosel assembly lower portion, functioning to provide positive location of the club head and hosel assembly. In the preferred mode, a permanent weldment functions to securely affix the lower portion of the hosel assembly to the club head at the heel portion of the club head. The device is utilized in conjunction with golf clubs of both the iron and wedge variety to provide a cost-effective and convenient way to custom-fabricate golf clubs to the unique physical characteristics of individual players. By taking advantage of machining, rather than forging or casting the components, a wide range of lie angles with precise resolution can be achieved. In addition, the manufacturing techniques of the present invention diligently conform to the USGA rule that clubs other than putters shall not be designed to be adjustable except for weight.

A disc replacement device is provided for replacing a spinal disc in an animal subject. The disc replacement device includes a shell, a fulcrum, and a damping sleeve. The shell further comprises a first portion adapted for articulating with the fulcrum such as a spherical stainless steel ball, and a second portion adapted for coupling with the damping sleeve.

The invention discloses an exciting device for testing dynamic property of an MEMS microstructure or micro-device and belongs to a minitype mechanical electronic system. A structure of the device comprises that: a microstructure to be tested is arranged on a crossed spring strip of the top part; the crossed spring strip is arranged on the top part of a sleeve by a bolt; piezoelectric ceramics, an upper connecting block, a steel ball, a lower connecting block and a pressure sensor are arranged inside the sleeve; the bottom of the piezoelectric ceramics is fixed on the upper connecting block; the top part is contacted with the crossed spring strip to change the thickness of an adjustable washer; the piezoelectric ceramics is pressed by the crossed spring strip; the pressure sensor is arranged on a base plate; and the base plate and the sleeve are connected by a bolt. The exciting device has the advantages that in normal environment the device can carry out excitation on the MEMS microstructure, can remove shearing force produced in the using process of the piezoelectric ceramics and effectively prolong the service life of the piezoelectric ceramics through exertion of certain pretightening force on the piezoelectric ceramics at the same time; and the device can measure the output force of the piezoelectric ceramics by the pressure sensor, thereby conveniently seeking a frequency response function of the microstructure and obtaining dynamic property parameters of the microstructure.

The invention discloses an optimum dual-inlet and dual-outlet steel ball coal grinding machine direct-blow type powder-preparation control method. The method obtains the material position of the coal grinding machine after carrying out soft-measurement processing by collecting the noise material position of the coal grinding machine, the material position of pressure difference, the current of the coal grinding machine, one-time air quantity, one-time opening of the hot wind door and the cold wind door of an inlet, inlet temperature and outlet temperature; the control comprises material position control, air quantity capacity control, bypass air quantity control and the temperature control of the inlet and the outlet; the material position is optimized and the best material position of the coal grinding machine is searched online so as to ensure the combustion safety of the boiler and coal powder supply quantity when the load of the boiler is adjusted. The boiler combustion is optimized: according to the boiler technology, the load and the running working conditions, the powder supply quantity and the ventilation quantity of each coal grinding machine are optimized and the combustion efficiency of the boiler is improved. Malfunction diagnosis, running evaluation and analysis are carried out to the system and reasonable suggestions are provided so as to ensure the system to run continuously, stably, safely and economically; the optimum dual-inlet and dual-outlet steel ball coal grinding machine direct-blow type powder-preparation control method is widely applied to the dual-inlet and dual-outlet steel ball coal grinding machine direct-blow type powder-preparation system or industrial similar systems in other industries.

A screwdriver comprises a torque setting mechanism including a torque adjustment ring, an actuation rod threadedly secured to the upper torque adjustment ring and a lower torque adjustment nut, a spring biased sleeve with the actuation rod passed, and a clutch ring snugly put on two opposing intermediate flats of the actuation rod and having an upper surface engaged the torque adjustment ring and a lower surface formed with recesses engaged with steel balls on an upper surface of a support ring in the sleeve. Turning a rotatable handle will turn the sleeve. The clutch ring will disengage with the steel balls if the torque exceeds a set value. Thus, the torque exerted on the handle will not transmit to a shank secured to the actuation rod so as to prevent a screw from being over-driven by the shank.

A power-assisted wheelbarrow applies an assisting function using an electric motor. Handle shafts connecting to the rear end portions of two handles are covered with grips which are allowed to move axially relative to the handle shafts. More than one steel balls are fitted between the handle shafts and the grips. At the sides of the grips or the handles, pushing force detecting sensors are disposed for detecting the axial movements of the grips relative to the handle shafts in accordance with the pushing forces applied to the grips. The operation of the electric motor is controlled on the basis of the detected values of the two pushing force detecting sensors. As a result, the assisting force by the electric motor can be effectively applied to the wheel of a manual-push type single-wheeled carrier so that manual labor can be reduced while minimizing the consumption of a battery.

The translucent or opaque colored glass-ceramic article provides a cooking surface and has an adjustable light transmission in a visible range under 15%, as measured for a 4 mm sample thickness; a flaw-free upper surface with an impact resistance of greater than 18 cm breaking height, as tested with a 200 g steel ball in a falling ball test; a temperature difference resistance of greater than 500° C.; a high crystallinity with keatite mixed crystals as principal crystal phase in an interior of the glass-ceramic article and with a residual glass phase fraction of less than 8% by weight; a glassy upper surface layer of from 0.5 to 2.5 μm thick, which is substantially free of high quartz mixed crystals and which inhibits chemical reactions, and a content of enriched ingredients in the residual glass phase in the interior of the glass-ceramic and in the glassy surface layer of ΣNa₂O+K₂O+CaO+SrO+BaO+F+refining agents of from 0.2 to 1.6% by weight.

The invention provides a steel ball sorting device and a method based on machine vision. Surface characteristics of steel balls are obtained on line; the sorting of the steel balls is realized according to a quality control target; the surface of each steel ball to be detected is sufficiently expanded by coordinated rotation movement of a feeding disc and an expanding disc, and the expanding disc does not need to swing, so that the operation of a detection device is more stable and more reliable, and the structure is simple; and therefore, the existence of swing movements in a detection process is avoided and a detection result is more accurate. Meanwhile, a method for measuring the outer diameters of the steel balls in introduced in and the steel balls which cannot meet size requirements are removed according to a measuring result, so that the sorting device can more perfectly meet actual requirements.

An electronic cigarette, including a cigarette holder assembly, an atomization assembly, a glass container for accommodating smoke oil, and a gas flow regulator. The cigarette holder assembly includes a mouthpiece, a first sealing ring, a seat for supporting the mouthpiece, a fixed screw, and a pole. The atomization assembly includes a pair of heating wires, a glass casing, a second sealing ring, a third sealing ring, oil-guiding cotton, a limit cover, an insulating ring, and a fixed ring. The glass container includes a first sealing gasket and a second sealing gasket which are respectively disposed at both ends of the glass container. The gas flow regulator includes a control ring, a steel ball, a spring, and a rotary button. The first sealing ring of the cigarette holder assembly is sleeved on the mouthpiece, and the mouthpiece is fixed on the seat via the fixed screw.

A cutter shaft 40 provided with a cutter 43 as its lower tip is freely vertically movably disposed in a guide cylinder portion 17a of a cutter holder 17. A horizontal support body 47 is supported in a hollow case portion 17b. A large diameter first steel ball 45 and a small diameter second steel ball 46 are supported in the horizontal support body 47 separated by a suitable distance. The horizontal support body 47 supports the steel balls 45, 46 exposed from a lower end of the horizontal support body 47 but in a manner that prevents the steel balls 45, 46 from falling out of the horizontal support body 47. A cover body 48 is fixed on the upper surface of the horizontal support body 47 to prevent the first and second steel balls 45, 46 from moving in a vertical direction. The side edges of the horizontal support body 47 protrude from guide grooves 50a, 50b formed inside surfaces of the hollow case portion 17b. An adjustment screw screwingly engaged in a lid portion 17c presses downward on the cover body 48. On the other hand, resilient plate springs 54, 55 extending downward from the cover body 48 urge the cover body 48 upward.

The present invention relates to the structure of a ratchet wrench, and in particular, to a ratchet wrench which can provides high torque engagement in application, wherein a ratchet wheel is inserted into a circular opening on the wrench head of a common ratchet wrench, and a cavity is provided to the circular opening adjacent to one side of the rod body of the wrench for mounting a restrictive teeth structure, the end terminal of the cavity is provided with a ball hole to contain a spring and a steel ball, and the restrictive teeth structure is urged by the steel ball, thereby the high torque movement of the ratchet wheel is controlled.

The invention relates to an adhesive stirring device and particularly relates to a rapid adhesive stirring device applied to shoe industry. The invention is to provide a rapid adhesive stirring device to the shoe industry. The rapid adhesive stirring device is novel in structure, simple and convenient to operate and high in operating efficiency. In order to solve the technical problem, the invention provides such a rapid adhesive stirring device applied to the shoe industry. The rapid adhesive stirring device comprises a bottom plate, fixed blocks, a collection framework, a first support rod, a second support rod, a third support rod, a right frame, a first guide sleeve, a first guide rod, a movable framework, a rotating rod, a motor, a second guide sleeve, a second guide rod, a movable rod, a wire tying ring, a drawing wire, a stirring framework and a pipeline; the fixed blocks are symmetrically arranged on the left side of the top of the bottom plate. Through the rapid adhesive stirring device, the effects of being novel in structure, simple and convenient to operate and high in operating efficiency can be achieved; the adhesive can be rapidly and uniformly stirred; the rapid adhesive stirring device can be conveniently applied to production of the shoe industry; through a second spring and a steel ball, the adhesive can be stirred more thoroughly.

The invention relates to a low-temperature furnace smoke sucking exhaust gas and hot air drying composite powder feeding bituminous coal and meagre coal universal type powder preparing system. A middle bin storage type steel ball coal mill hot air power feeding and meagre coal power preparation system is adopted as a prototype, and part of low-temperature furnace smoke is sucked from an outlet of a suction fan by a furnace smoke fan as an inert medium and part of drying mediums to be mixed with hot air taken from an outlet of an air preheater to enter a coal mill for drying and delivering coal powder; the oxygen content of the powder preparation system is reduced, and the explosion preventing requirement on grinding bituminous coal can be met. In addition, part of exhaust gas at an outlet of a power exhauster is led to an inlet of a heat primary fan by an exhaust gas transfer pipeline to be mixed with hot air to enter a primary bellows for delivering the coal powder; the temperature of a primary air and powder mixture and the oxygen concentration of the system are effectively reduced, and the combustion and explosion preventing requirement of bituminous coal delivery is met. Isolating doors are both installed on a furnace smoke system and an exhaust gas transfer system; by the switch control of the isolating doors, the switching of a typical hot air power feeding meagre coal system and a low-temperature furnace smoke exhaust gas and hot air drying composite powder feeding bituminous coal system is realized, and the invention is not only suitable for the meagre coal, but also suitable for the bituminous coal.

Feed mechanism feeds balls to be tested to poroid detection cavity positioned on circumference of feeding rotary table and holes corresponding to clapboard positioned under feeding rotary table in detection mechanism. Balls to be tested on feeding rotary table and its holes are immersed in kerosene. The deploying rotary table under the clapboard supports balls to be tested to rotate in order to expanse entire spherical surface. CCD camera above the balls collects information of extended surface of balls to be tested. The said collected information is input into and processed by computer. Display in terminal displays magnified image of extended surface of rolled ball. Computer recognition system through magnified image on the display determines surface quality of the ball. Thus, qualified balls are sent to finished product bin, and unqualified balls are sent to reject bin in automatic or manual control. The method is in high accuracy and high efficiency.

Small, medium and large caliber ammunition housing multiple projectiles are traced by means of a tracing/marking system utilizing chemlucent chemicals. The tracing/marking system also provides target marking when using small, medium and large caliber ammunition. Multiple projectiles are coated in a chemlucent chemical (referenced as the coating) and placed in the ammunition. Additionally, a liquid chemlucent chemical in a separate container is placed in the ammunition. When launched or fired from a gun or munition, the separate container breaks and the coating and the chemlucent chemicals combine, emitting light. The present system applies to multiple projectiles that are either launched in a scatter pattern from a gun or dispersed in a scatter pattern after the housing of the ammunition opens up outside the gun after firing. For military ammunition, the tracing/marking system may use buckshot, steel balls, or tungsten balls. The tracing/marking system may also use various shaped projectiles such as stars, cubes, balls or flechettes. The chemlucent chemicals used by the tracing/marking system are non-flammable, biodegradable, and non-toxic.

The invention relates to a high-speed precision cutting machine which is mainly suitable for cutting flexible materials, including paper, fabric, leather, composite materials and the like. The high-speed precision cutting machine is characterized in that the high-speed precision cutting machine is further provided with a high-frequency vibration device mounted in a machine head, a linear sliding block mounted on a cross beam and a one-way floating device mounted on a framework; and two motors are respectively arranged on the machine head, a material pressing mechanism comprises a knife seat, a pressing pad, a spring and a seal ring, a transmission mechanism is a steel strip structure with an open hole and flanged edges, a balancing block, an eccentric crankshaft, a knife bar and a bearingare arranged in a mounting seat of the high-frequency vibration device, the linear sliding block comprises a steel ball rolling path and a steel ball retainer, and a guide column, a pressure plate, aY-direction connecting plate and an X-direction connecting plate are arranged on the one-way floating device. The structural design is more compact and reasonable, the volume is small, the mounting is more convenient and the cost is lower; and simultaneously, the high-speed precision cutting machine is convenient and reliable to use and wide in range of applications, and can precisely cut all flexible materials at high speed.

The invention provides a thrust bearing for the screw of a ball-nut type steering gear. The thrust bearing comprises a screw. A thrust ball type thrust bearing is arranged on screw. The thrust ball type thrust bearing comprises a steel ball and a ring. The ring is composed of a left semi-ring and a right semi-ring. The cross section of the thrust ball type thrust bearing raceway is a four point contact type. The left semi-ring and the right semi-ring are both provided with a corresponding arc outer raceway. Two arc inner raceways are arranged on the screw. The radius of two inner raceways is the same as that of two outer raceways. The centers of four arc raceways are in a same circumference, but four arc raceways are non-concentric. The steel ball is arranged between the screw and the ring. Four contact points are formed between the steel ball and two outer raceways and two inner raceways, and thus a four point contact type thrust ball bearing is formed. In assembly, a punching-riveting anti-loosening structure is adopted between an adjusting nut and a valve body. For the bearing, a screw is used to replace a shaft washer, a holder is not needed any more, and the installation becomes convenient. The inner raceway and outer raceway are both composed of two arcs, a four point contact ball bearing is formed and is capable of bearing a large axial/radial force, the wear is reduced, and the service life is prolonged.

The invention relates to a residual heat boiler of a steel ball dedusting type ore heat furnace. The residual heat boiler at least comprises a boiler heated surface, a seal boiler flue gas passage, a furnace top and a furnace bottom ash hopper, wherein the boiler heated surface comprises coil pipe groups; and the seal boiler flue gas passage is formed at the periphery of the boiler heated surface. The residual heat boiler is characterized in that the furnace top is provided with a steel ball spreading device, a steel ball separating and collecting device is arranged under the furnace bottom ash hopper; a circulating type steel ball mechanical transporting device is arranged between the steel ball spreading device and the steel ball separating and collecting device; the circulating type steel ball mechanical transporting device comprises at least one drive wheel, at least three driven wheels, a double-row chain, a horizontal guide rail, a steel ball transporting hopper and a mechanical discharge blocking wheel; the at least one drive wheel and the at least three driven wheels are fixed on a boiler frame, and the steel ball transporting hopper is hung on the double-row chain surrounded between the drive wheels and the driven wheels; and the furnace top is provided with the mechanical discharge blocking wheel capable of turning over the steel ball transporting hopper. The invention has simple mechanism, recycled steel ball, mechanical automation running, low investment and running cost and favorable dedusting effect, and the like, can effectively remove and collect accumulated ash and sticking dust on the residual heat boiler heated surface of the ore heat furnace and greatly develops the energy-conservation and emission-reduction technology of the ore heat furnace smelting industry.

The invention discloses a steel ball separation system and method. The steel ball separation system comprises a material tray, a rolling rod sorting device, an electromagnetic sorting device and a photoelectric sorting device. The steel ball separation method is used for separating steel balls by virtue of the rolling rod sorting device, the electromagnetic sorting device and the photoelectric sorting device respectively, so that not only can the steel balls with different specifications, sizes and materials be separated, but also the steel balls with defects on surfaces can be selected. Therefore, the steel ball separation system can be used for outputting qualified steel balls, can achieve very high detection accuracy and high detection efficiency by virtue of automated assembly line work, and effectively solves the problems of low detection accuracy and long working time for detection of the steel balls in industry.

The invention discloses a heat conduction coefficient and contact thermal resistance testing device. The testing device comprises a control system, a support 3, a first ball sleeve 4-1, a second ball sleeve 4-2, a sliding screw rod 5, an oriented steel ball and a pressure sensor 6, an auxiliary heater 7, a first temperature sensor 8-1, a second temperature sensor 8-2, a vacuum cap 9, a test piece test zone 10, a stress loading device, a vacuum drainage air port 13, water inlet and outlet ports 14, a data acquisition system, a sealing chassis 16, a mounting plate 17, a horizontal adjusting rod 20 and a heater strip 21, wherein a thermal flowmeter 22, the oriented steel ball and the pressure sensor 6, the support 3, the mounting plate 17 and heating refrigeration sleeves 1 are symmetrical in an up-down manner. According to the invention, the auxiliary heater which can reduce the axial heat loss is arranged along the y-direction, and a temperature gradient of a controllable temperature radiation shield simulation test region is arranged at the periphery of the test zone so as to reduce heat loss of a cross section direction.

A lens driving device is disclosed. The lens driving device includes a housing including a base, and a cover body forming a receiving space together with the base; a lens barrel assembled inside the housing and moveable along an optical axis of the lens barrel; an anti-shake carrier assembled inside the housing for suspending the lens barrel along the optical axis; an anti-shake spring having one end thereof fixed to the housing, and another end fixed on the anti-shake carrier; a plurality of bearing steel balls provided between the base and the anti-shake carrier for reducing friction force when the anti-shake carrier moves perpendicular to the optical axis; wherein the anti-shake carrier depends on elastic force of the anti-shake spring when it moves perpendicular to the optical axis, and the anti-shake carrier will return to an initial position.