20 results about "Ball size" patented technology

A method of designing a ball bearing includes providing a value of a shaft outside diameter and a load. An inside diameter of a bearing inner ring is determined based on the value of the shaft outside diameter. A ball size having a specific ball diameter is selected and a number of the balls of the selected standard ball size required to support the load is determined. A pitch diameter of a pitch circle of the ball bearing is determined based on the determined number of balls of the selected ball size. A suitability factor is calculated for the particular value of the pitch diameter and the particular pitch diameter is validated as suitable when the suitability factor is between calculated upper and lower limits.

The invention relates to the technical field of slide block measurement and model selection, in particular to a slide block steel ball rapid screening method, a tool block and a calibration block are prepared, the outer contour of the tool block is completely consistent with the size after a standard track and target value steel balls are combined, and a plurality of secondary gas channels are formed in the tool block; the plurality of secondary gas channels are respectively opposite to the plurality of channels on the calibration block, and the calibration block is a sliding block and is matched with the tool block for use to obtain a judgment reference of a steel ball mounting gap; the calibration block and the to-be-measured sliding block are sequentially installed on the tool block, ventilation is conducted on the multiple secondary gas channels through the pneumatic measuring instrument, the gas supply pressure is measured, the gap h (mesh) between the tool block and the upper channel of the calibration block and the gap h (real) between the to-be-measured sliding block and the upper channel of the calibration block are judged through the gas supply pressure, and therefore the size of the assembled steel ball is obtained. The tool block is designed, a pneumatic gauge is adopted to directly read a pressure signal to calculate the channel spacing, the detection time can be greatly shortened, and on-site rapid application is facilitated.

The utility model relates to an ore grinding machine with specification-adjustable nano ceramic balls, which belongs to the technical field of ore grinding and comprises a grinding bin, a top cover detachably connected to the top of the grinding bin, a feed port fixedly communicated with the top of the top cover and a discharge pipe fixedly communicated with the bottom of the grinding bin. A self-adaptive grinding mechanism extending into the top cover is arranged on the upper surface of the top cover, and a cooling mechanism extending out of the grinding bin is arranged on the upper surface of the top cover. According to the ore grinding machine capable of adjusting the specifications of the nano ceramic balls, when a double-shaft motor is started, a main bevel gear and an auxiliary bevel gear are driven to be in transmission fit, and under the elastic force action of a reset spring, a sliding sleeve slides on a transmission shaft to drive a supporting rod and a movable plate to be expanded or contracted, so that the specifications of the nano ceramic balls are adjusted; and through centrifugal force and impact force generated by rotation, the ball bodies of the nano ceramic balls achieve the optimal grinding effect in the grinding bin, and the advantage of high grinding efficiency is achieved.

This utility model discloses a steel ball size sorting machine, including an outer cover, inside which a sorting rod assembly is fixed. The sorting rod assembly is provided with sorting grooves, the inner diameter of which varies from small to large, and the sorting rod assembly is inclined downwards. Below the sorting rod assembly is a ball receiving plate, which is provided with two partitions that divide the ball receiving plate into three ball receiving spaces. The two partitions can move along the ball receiving plate to change the size of the three ball receiving spaces. An inclined plate is also fixed to the outer cover, with two outer channels corresponding to the two outer ball receiving spaces respectively. The intermediate channel formed between the two outer channels corresponds to the middle ball receiving space. This utility model can change the size and position of the ball receiving spaces, so that the limited outlet channels can accommodate steel balls of different diameters, resulting in high utilization of the outlet channels and a small footprint.

The invention relates to the technical field of ball processing and production, in particular to a high-resilience solid core inner container, a ball and a preparation method, and the high-resilience solid core inner container comprises a high-resilience solid core ball inner container made of a material A and a material B which are mixed with each other, and the ball formed by an outer layer and the high-resilience solid core ball inner container through a cold bonding process. By adopting the solid inner container and the outer layer bonded by adopting a cold bonding process, the problems of air leakage, poor durability, small self-elasticity adjustment range, stable ball size and no deformation of the inflatable inner container in a manufacturing and using environment are solved, and meanwhile, a finished product can reach standard bounce and considers the weight standard.

The utility model relates to the technical field of detection tools, in particular to a tool assembly for detecting the size of a bearing steel ball, which comprises a base, a detection table, scale marks and a fixing groove. A detection table is arranged on the upper end face of the base, fixing grooves are fixedly formed in the upper end face of the detection table at equal intervals, and scale marks are arranged on the two sides of each fixing groove; a detection assembly and an auxiliary assembly are arranged on the detection table, the detection assembly and the auxiliary assembly are arranged on the detection table at the connecting end of the tool assembly for detecting the size of the bearing steel ball, and under the action of a spring damper, the clamping detection plates move oppositely to clamp the bearing steel ball. A sliding block at the bottom end of a clamping detection plate moves under the guiding action of a sliding rod and a guide rod, a scale tip on the upper end face of the sliding block is driven to move and align to a scale line on a detection table for size detection, and a limiting block arranged on the upper end face of the detection table can rapidly observe the size range of a bearing steel ball. The bearing steel ball detection device is simple in detection operation and easy to observe.

The present invention discloses a method for preparing a graphene-enhanced copper-chromium electrical contact, comprising the following steps: S1, ball milling; S2, cold isostatic pressing; S3, vacuum sintering; and S4, vacuum consumable arc melting. The method for preparing the graphene-enhanced copper-chromium electrical contact adopts a direct powder mixing method. Inert gas is introduced during the mixing process to prevent oxidation of the copper powder. By controlling the ball milling speed and ball size and ratio, good graphene dispersion is achieved. A vacuum consumable arc melting process is used for melting, resulting in good electrode rod degassing during the melting process and low gas content in the ingot after melting. Furthermore, the elements within the material are evenly distributed, with minimal macrosegregation, no macroscopic or microscopic defects such as element enrichment, and good structural uniformity.

A kind of method for determining the actual ball size of a ball cage type universal coupling belongs to the technical field of ball cage type universal coupling design.The method is as follows: coupling parameter analysis;calculating the difference between the theoretical ball and the center of the ellipse and the difference between the actual ball and the center of the ellipse;calculating the actual ball center size.The present application combines mechanical expertise,analyzes the tangent of the elliptical orbit and the ball,according to the different situations of the inner planet wheel and the outer planet wheel,calculates the actual ball center size directly,avoids the repeated modeling work of three-dimensional model analysis in the prior art,significantly improves the measurement efficiency,enhances the universality of the method and expands the scope of application.

The utility model relates to the technical field of pet baking food processing, and discloses a ball mold for processing pet baking food. The mold is composed of a base plate, a forming mechanism and an opening and closing mechanism. The forming mechanism comprises an upper die, a lower die, a limiting block, a bottom forming shell and a top forming shell, the upper die and the lower die are magnetically connected with the bottom forming shell and the top forming shell through rubidium magnets, spherical dies of different sizes can be conveniently and rapidly replaced, the universality and applicability of the dies are improved, and the forming quality of baked grains can be guaranteed. The opening and closing mechanism comprises a poke rod, an arc-shaped rack, a gear, a torsion spring and the like, the poke rod drives the arc-shaped rack to move, the gear rotates, the torsion spring stores and releases energy to assist the upper mold and the lower mold to be rapidly and smoothly separated or closed, an operator exerts force when closing the mold and does not need to exert force when opening the mold, time and labor are greatly saved, and the production efficiency of the round baked food is improved. Compared with a traditional mold, the mold solves the problems that the opening and closing efficiency is low and the size of the ball cannot be rapidly changed, and has remarkable advantages.

The invention provides a preparation method of high-density nano lithium metatitanate ceramic, and belongs to the technical field of preparation of ceramic materials. According to the method, continuous ball milling is carried out by replacing a ball milling solvent and controlling the size of a ball milling ball, target powder is obtained, and lithium metatitanate ceramic is directly obtained after forming and sintering. The preparation method disclosed by the invention has the advantages of simple process, low cost and good ceramic performance. In the continuous ball-milling process, multiple times of sintering are not needed, only the solvent needs to be replaced, the sintering process in the multiple times of ball-milling process is greatly saved, meanwhile, the density of the obtained lithium metatitanate ceramic is remarkably improved and reaches 99% T.D., the grain size of the lithium metatitanate ceramic can be nanoscale (within 100 nm), and the lithium metatitanate ceramic has the advantages of being simple in preparation process, low in cost and good in application prospect. The problem that the nanoscale grain size and the high density cannot be considered at the same time in existing tritium breeding agent ceramic preparation is well solved.

The utility model relates to the technical field of bearing steel ball machining, in particular to a circulating grinding device for bearing steel ball machining. According to the technical scheme, the circulating grinding device for bearing steel ball machining comprises a machine shell, a motor, a grinding disc and the like, the machine shell is placed on the ground, the motor is fixedly connected to the bottom of the machine shell, an output shaft of the motor penetrates into the machine shell to be fixedly connected with the grinding disc, and the grinding disc is rotationally connected with the machine shell. The motor is started to drive the grinding disc to rotate at a high speed so as to grind steel balls, if the steel balls need to be ground according to different sizes, the hand wheel is rotated to enable the screw rod to rotate to drive the extrusion disc to move up and down, and the distance between the extrusion disc and the grinding disc can be adjusted by observing the graduated scale. The grinding requirements of steel balls with different sizes can be quickly and accurately met, the problem that the product quality is affected due to too large or too small pressure is solved, and therefore the quality and consistency of final products are improved.

The utility model discloses a groove type internal circulation six-groove flange ball spline which comprises a spline shaft, a first groove, a cylinder outer sleeve, a first protruding block, a ball circulator, a transmission ball, a first sealing ring, a third groove, a ball groove, an opening groove, a fourth groove and a second sealing ring. A fourth groove and a second through hole are formed in the cylinder outer sleeve, a flange plate is fixedly connected to one end of the cylinder outer sleeve, and a screw hole is formed in the flange plate; the ball spline is provided with a plurality of grooves and a plurality of linearly moving conveying grooves, six paths of balls are divided into two groups, the two groups are staggered at an included angle of 30 degrees, each group of balls are uniformly distributed at 120 degrees, and more balls are in contact with the spline shaft and the spline inner sleeve, so that the ball spline can run stably and reliably, the conveying efficiency is higher, and the service life of the ball spline is prolonged. And particularly, during high-speed operation, the loss of the balls is reduced more obviously, the service life is prolonged, and a larger ball size can be used under the same shaft diameter through the balls.

The application relates to an outer ball diameter measuring device and a using method. The device comprises a main base, a standard base, a measured base and a dial gauge; the main base is provided with a cylindrical hole and a positioning taper sleeve on the upper side, is used for installing the standard base or the measured base, is provided with an inclined hole on the left side, is used for installing the dial gauge, and is provided with a screw hole on the front side, used for screwing a screw to fix the dial gauge; the standard base and the measured base are both composed of a cylinder on the bottom and an outer ball on the upper side, and the structures are matched with the cylindrical hole and the positioning taper sleeve of the main base. The using method is as follows: the standard base is installed, the dial gauge probe is placed on the outer ball surface, the dial gauge is adjusted to zero, the measured base is replaced, the pointer change value of the dial gauge is read, and the ball diameter of the measured outer ball is obtained according to the geometric relation. The application has the advantages of simple structure, convenient operation, fast and accurate measurement of the outer ball diameter, effective improvement of the detection efficiency of the processing site, and suitability for the online monitoring of the outer ball size in precise parts such as a resonant gyro.

The Tai Chi ball comprises a first hemisphere and a second hemisphere, two first functional blocks are movably connected to the outer surface of the first hemisphere in a clamped mode, two second functional blocks are movably connected to the outer surface of the second hemisphere in a clamped mode, and magnetic attraction assemblies are connected to the opposite faces of the first hemisphere and the second hemisphere in a clamped mode. According to the technical scheme, the design that the first hemisphere and the second hemisphere are combined in a magnetic attraction mode is adopted, automatic splicing is achieved through the embedded magnetic attraction assembly, meanwhile, the matching structure of the C-shaped groove and the protruding edge is matched, it is ensured that after splicing is conducted, stability is high, carrying and storage are more convenient, and the splicing device is suitable for being rapidly and conveniently used in various scenes; the design mode that the first hemisphere and the second hemisphere are spliced is adopted, materials can be cut according to the size of the needed ball, waste caused by the improper size of raw materials is avoided, the utilization rate of the materials is increased, and the production cost of the Tai Chi ball is effectively reduced.

This utility model relates to the technical field of bearing ball production equipment, and in particular to a multi-stage air-separated adaptive sorting device for bearing balls, comprising a main pipe, a collection hopper, a secondary pipe, and a size adjustment component; the collection hopper is connected above the beginning of the main pipe; the beginning of the secondary pipe is connected to the middle of the main pipe; the size adjustment component is located at the connection between the main pipe and the secondary pipe, and is used to adjust the ball size threshold flowing into the secondary pipe; the end of the main pipe is provided with a branch pipe of the same diameter as the main pipe body; the end of the secondary pipe is provided with a side through hole; both the branch pipe and the side through hole are equipped with fans. This utility model can improve the sorting efficiency and stability of the balls.

The application belongs to the technical field of mineral processing in the metallurgical industry, and provides an adding method of grinding medium of a ball mill. The method replaces the original steel forging natural consumption in the ball mill by using the ball mill in the operation process, realizes the replacement of mixed grinding medium of porcelain balls and steel balls in the continuous operation of the ball mill, does not need to stop, solves the production fluctuation of the mixed grinding medium not adapting to the on-site grinding index in the replacement process, the ball discharge end spits ball problem of the ball mill, quickly finds out the best matching ratio of the size and quantity of the added porcelain balls and steel balls in different ball mills, reduces the workload of removing all the steel balls and the cost of adding a large number of porcelain balls for the first time, and finally shortens the replacement period of the new type of wear-resistant grinding medium, stabilizes the production, and reduces the comprehensive cost in the replacement process of the porcelain balls.

The invention discloses an automatic casting production line and a production method thereof, and belongs to the technical field of grinding ball casting. The ball falling device comprises an oscillating ball falling machine and a grinding assembly, the grinding assembly is arranged in the middle of the inner side of the separating mechanism in a liftable mode and used for grinding and stripping a sprue cast ball string on the oscillating ball falling machine into a sprue rod and a cast ball, and the cast ball and the sprue rod separated through the method are shallow in stubble, separated in place and not prone to generating scrap iron; meanwhile, cast balls on the sprue rod can be fully separated, the cast balls are prevented from being damaged due to repeated impact, the sprue rod is prevented from being broken due to repeated impact, and fragments similar to the cast balls in size are prevented from being generated, so that the sand separating and screening process is simplified and accelerated, the overall production efficiency is improved, the surfaces of the cast balls are protected, and the service life of the cast balls is prolonged. And the cast balls are prevented from being damaged in the machining process, and the yield of cast ball production is increased.

A continuous inspection device for bearing ball bearings includes a turntable with multiple interconnected channels. These include a feed channel with a diameter larger than the acceptable ball size, connected internally to a negative deviation discharge channel with a diameter equal to the minimum negative deviation of the acceptable ball size; a non-deviation discharge channel with a diameter equal to the maximum positive deviation of the acceptable ball size; and a positive deviation discharge channel with a diameter larger than the maximum positive deviation of the acceptable ball size. The positive deviation discharge channel is located between the non-deviation discharge channel and the feed channel. The turntable is forced to rotate and has three stop positions, ensuring that any ball can flow out from its corresponding channel. This invention achieves high efficiency and reliable inspection results by setting multiple channels of different diameters within the turntable to inspect batches of balls individually. Pneumatic pressure ensures accurate entry of balls into their corresponding channels. The picking mechanism and drive structure are mechanically linked to ensure the individual selection and inspection of each ball.

The invention discloses an ultra-precision automatic measurement method and device for the sizes of a wire tail and a burning ball of a wire bonder, and relates to the technical field of semiconductor packaging. The method comprises the following steps: monitoring the contact between the tail end of a lead and the surface of a material in real time through a pseudo soldering detection system, obtaining first displacement data, calculating to obtain the actual physical length of the tail end of the current lead, comparing the actual physical length with a preset standard for evaluation, and if the evaluation is not abnormal, executing an electronic ignition step to form a burning ball; controlling the welding tool to move to a preset initial height; the method comprises the steps of obtaining second displacement data; and further obtaining the changed physical length of the line tail in the process of forming the burning ball, calculating to obtain the radius value of the burning ball, and comparing and evaluating the radius value with a preset process specification. By the adoption of the method, mechanical deformation errors can be avoided through hardware-level instantaneous contact detection, and automatic and high-precision measurement of the length of the micron-level wire tail and the size of the fired ball is achieved in combination with a high-precision physical model.

This utility model relates to the field of ball-serving machine technology, specifically a ball-serving machine. The ball-serving machine includes a ball-serving device and a support frame. The ball-serving device is located on top of the support frame and includes a ball-serving tube and a driver. A ball wheel housing is provided on the bottom side of the ball-serving tube. A ball wheel is provided at the output end of the driver. The ball wheel is rotatably mounted inside the ball wheel housing, and its top extends into the ball-serving tube. A conversion plate for adapting to ball size is provided inside the ball-serving tube above the ball wheel. A connector is provided between the ball-serving device and the support frame. The angle between the ball-serving device and the connector is adjustable, and the angle between the connector and the support frame is also adjustable. The support frame allows for horizontal angle adjustment of the ball-serving device. This utility model has a reasonable structure. Through its modular structure, multi-level angle adjustment, and adaptive ball design, it significantly outperforms traditional single-function ball-serving machines in terms of versatility, stability, and operability, and has high market promotion value.