CN111054931A - Ball preparation system for ball bearing and control method thereof - Google Patents

Ball preparation system for ball bearing and control method thereof Download PDF

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Publication number
CN111054931A
CN111054931A CN202010147249.0A CN202010147249A CN111054931A CN 111054931 A CN111054931 A CN 111054931A CN 202010147249 A CN202010147249 A CN 202010147249A CN 111054931 A CN111054931 A CN 111054931A
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China
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section
ball
ball bearing
preparation system
molten metal
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CN202010147249.0A
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Chinese (zh)
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CN111054931B (en
Inventor
王燕令
田力
何永宁
刘莹莹
任敏
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Zhengzhou University of Light Industry
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Zhengzhou University of Light Industry
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/32—Balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • F16C2204/70—Ferrous alloys, e.g. steel alloys with chromium as the next major constituent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/02—Shaping by casting

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention discloses a ball preparation system for a ball bearing and a control method thereof, and solves the technical problems that the existing ball bearing is low in ball manufacturing process efficiency and difficult to control molding quality. The high-density molten metal cooling device comprises an outer shell, wherein the outer shell comprises a constant-temperature section, a heating section and a cooling section which are sequentially communicated from bottom to top, high-density molten metal is arranged in the constant-temperature section, the heating section and the cooling section, the bottom end of the constant-temperature section is connected with a nozzle which conveys molten metal inwards, the density of the molten metal is smaller than that of the high-density molten metal at the same temperature, and the melting point of the molten metal is higher than that of the high-density molten metal. The invention not only simplifies the processing procedure, reduces the labor intensity and the labor cost, and further improves the processing efficiency of the ball, but also has good molding quality after the ball is used.

Description

Ball preparation system for ball bearing and control method thereof
Technical Field
The invention relates to the technical field of ball bearing ball preparation, in particular to a ball bearing ball preparation system and a control method thereof.
Background
The ball bearing is also called a ball bearing, is common in light industrial machinery, is one of rolling bearings, and is characterized in that a ball made of alloy is arranged between an inner steel ring and an outer steel ring, so that the friction force in the power transmission process is reduced and the transmission efficiency of mechanical power is improved in a rolling mode. The ball is the main part of the ball bearing, and the manufacturing method of the traditional ball comprises the following steps: 1. preparing a blank: various spherical blanks are manufactured by various process methods; 2. coarse grinding: putting the spherical blank into an upper millstone and a lower millstone which are matched with the blank in size, wherein the millstones are provided with a plurality of concentric annular grinding grooves with the same size and triangular sections, and adding oil and coarse grinding materials into the millstones; the upper grinding disc rotates, the lower grinding disc does not move, the upper ball grinding machine is called a rough grinding machine, and multiple rough grinding can be carried out as required. 3. Cleaning: cleaning oil and coarse abrasive residues adhered to the surface of the ball every time coarse grinding is finished; 4. fine grinding: putting the rough ground blank into a fine grinding machine; adding low-viscosity oil and a fine grinding material into a fine grinding machine, and grinding to a standard size; 5. polishing: the process is similar to coarse grinding and fine grinding.
The existing ball is manufactured by adopting a series of procedures such as blank manufacturing, coarse grinding, cleaning, fine grinding, polishing and the like, so that not only is the efficiency low, but also the molding quality is difficult to control. Constantly increase ball bearing's output, improve ball bearing's quality, to the development of cooperation national economy, have very important meaning, improve ball quality and be the main means who improves ball bearing quality.
Disclosure of Invention
Aiming at the defects in the background art, the invention provides a ball preparation system for a ball bearing and a control method thereof, and solves the technical problems that the existing ball bearing is low in manufacturing process efficiency and difficult in control of molding quality.
The technical scheme of the invention is realized as follows: the utility model provides a ball preparation system for ball bearing, includes the shell body, the shell body is from upwards including constant temperature section, heating section and the cooling zone that communicates in proper order down, all be provided with high density molten metal in constant temperature section, heating section and the cooling zone, the bottom of constant temperature section is connected with the nozzle of inside transport metal liquid drop, and the density of metal liquid drop is less than the density of high density molten metal under the same temperature, and the melting point of metal liquid drop is higher than the melting point of high density molten metal.
Furthermore, the high-density molten metal is copper molten liquid, the metal liquid drop is high-chromium steel liquid drop, the density of the copper molten liquid is larger than that of the high-chromium steel liquid drop, the melting point of the copper molten liquid is lower than that of the high-chromium steel liquid drop, and the copper molten liquid is still in a molten state after the high-chromium steel liquid drop is cooled to be solid.
Furthermore, a conical channel with the diameter of the section gradually reduced is arranged at the position where the constant temperature section leads to the heating section, so that the high-chromium steel liquid drops are ensured to orderly ascend to the cooling section under the self-weight and buoyancy states.
Furthermore, a vertical cylindrical channel connected with the conical channel is arranged in the cooling section, and the cylindrical channel can ensure that the high-chromium steel droplets rise in sequence and can avoid the irregular shape of the high-chromium steel droplets.
Furthermore, the upper part of the cylindrical channel is connected with a discharging cavity, the diameter of the discharging cavity is larger than that of the cylindrical channel, and the balls after solidification and forming are guaranteed to be collected quickly and conveniently.
Furthermore, the outer shell is made of magnesia carbon bricks made of alkaline refractory materials, so that the reliability of the structure of the outer shell is fully guaranteed.
Furthermore, an electric heating belt is wound outside the heating section and is responsible for maintaining the temperature of the high-chromium steel liquid drops in the rising process.
Furthermore, a cooling water pipe is wound outside the cooling section and used for reducing the temperature of the high-density molten metal, so that the regular high-chromium steel liquid drops are gradually changed into solid balls.
A control method of a ball preparation system for a ball bearing is characterized by comprising the following steps:
the method comprises the following steps: presetting, namely adjusting the constant temperature section, the heating section and the cooling section to preset temperatures
Step two: spraying metal liquid drops, and controlling a nozzle to spray high-chromium steel liquid drops to the constant-temperature section;
step three: and (3) ball forming, wherein the high-chromium steel drops sequentially rise to the heating section and the cooling section in the copper melt, and the high-chromium steel drops form solid balls after passing through the cylindrical channel of the cooling section.
The invention adopts the processing principle of automatic forming, controls the shapes of materials and auxiliary materials through temperature, ensures that the high-chromium steel liquid drops are gradually formed and solidified in the copper molten liquid as the auxiliary materials for providing buoyancy and forming pressure and the high-chromium steel liquid drops are the raw materials of the balls. The invention not only simplifies the processing procedure, reduces the labor intensity and the labor cost, and further improves the processing efficiency of the ball, but also has good molding quality after the ball is used.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic cross-sectional view of the present invention;
in the figure, the device comprises a shell 1, an outer shell 2, a constant temperature section 3, a heating section 4, a cooling section 5, a conical passage 6, a cylindrical passage 7, a discharging cavity 8, an electric heating belt 9, a cooling water pipe 10, high-density molten metal 11 and metal droplets.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Embodiment 1, a ball preparation system for ball bearing, as shown in fig. 1, includes shell body 1, and shell body 1 is from upwards including constant temperature section 2, heating section 3 and the cooling zone 4 that communicate in proper order down, all be provided with high density molten metal 10 in constant temperature section 2, heating section 3 and the cooling zone 4. The bottom end of the constant temperature section 2 is connected with a nozzle 12 for conveying the metal droplets 11 inwards, the density of the metal droplets 11 at the same temperature is less than that of the high-density molten metal 10, and the metal droplets 11 sprayed by the nozzle 12 can be ensured to be automatically lifted by buoyancy in the high-density molten metal 10. The melting point of the metal droplet 11 is higher than that of the high-density molten metal 10, so that the high-density molten metal 10 is kept in a molten state after the metal droplet 11 is cooled to be in a solid state.
The high-density molten metal 10 is molten copper, the metal droplets 11 are molten high-chromium steel droplets, the density of the molten copper is greater than that of the molten high-chromium steel droplets, the melting point of the molten copper is lower than that of the molten high-chromium steel droplets, and the molten copper is still in a molten state after the molten high-chromium steel droplets are cooled to be solid. Accordingly, different high-density molten metal 10 and metal droplets 11 can be selected to prepare different materials of the ball.
An electric heating belt 8 is wound outside the heating section 3, and the electric heating belt 8 is responsible for maintaining the temperature of the high-chromium steel liquid drops in the rising process. And a cooling water pipe 9 is wound outside the cooling section 4 and used for reducing the temperature of the high-density molten metal 10, so that regular high-chromium steel droplets are gradually changed into solid balls.
Embodiment 2, a ball preparation system for ball bearing, thermostatic section 2 leads to the position of heating section 3 and is provided with the toper passageway 5 that the cross-section diameter gradually diminishes, guarantees that high chromium steel liquid drop rises to cooling segment 4 in order under dead weight and buoyancy state, and the necking structure can improve preparation efficiency moreover.
The other structure of this embodiment is the same as embodiment 1.
Embodiment 3, a ball preparation system for ball bearing, be the vertical cylindric passageway 6 of connecting toper passageway 5 in the cooling section 4, cylindric passageway 6 not only can guarantee that the high chromium steel liquid drop rises according to the order, can avoid the emergence of the irregular condition of shape of high chromium steel liquid drop moreover.
The other structure of this embodiment is the same as embodiment 2.
Embodiment 4, a ball preparation system for ball bearing, the top of cylindric passageway 6 is connected with ejection of compact chamber 7, and the diameter of ejection of compact chamber 7 is greater than the diameter of cylindric passageway 6, guarantees that the ball after the solidification shaping is collected fast, conveniently.
The other structure of this embodiment is the same as embodiment 3.
Embodiment 5, a ball preparation system for ball bearing, the material of shell body 1 is alkaline refractory material's magnesia carbon brick, has fully guaranteed shell body structure's reliability.
Other structures of this embodiment may be the same as any of embodiments 1 to 4.
Embodiment 6, a control method of a system for manufacturing a ball for a ball bearing, comprising the steps of:
the method comprises the following steps: presetting, namely adjusting the constant temperature section 2, the heating section 3 and the cooling section 4 to preset temperatures
Step two: spraying metal liquid drops, and controlling a nozzle 12 to spray high-chromium steel liquid drops to the constant-temperature section 2;
step three: and (3) ball forming, wherein the high-chromium steel drops sequentially rise to the heating section 3 and the cooling section 4 in the copper melt, and the high-chromium steel drops form solid balls after passing through the cylindrical channel 6 of the cooling section 4.
The structure of this embodiment is the same as embodiment 5.
Nothing in this specification is intended to be exhaustive of all conventional and well known techniques.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. The utility model provides a ball preparation system for ball bearing which characterized in that: including shell body (1), shell body (1) is from upwards including constant temperature section (2), heating section (3) and the cooling zone (4) that communicate in proper order down, all be provided with high density molten metal (10) in constant temperature section (2), heating section (3) and cooling zone (4), the bottom of constant temperature section (2) is connected with nozzle (12) of inside transport metal liquid drop (11), and the density of metal liquid drop (11) is less than the density of high density molten metal (10) under the same temperature, and the melting point of metal liquid drop (11) is higher than the melting point of high density molten metal (10).
2. The ball preparation system for a ball bearing according to claim 1, characterized in that: the high-density molten metal (10) is molten copper, and the metal droplets (11) are high-chromium steel droplets.
3. The ball preparation system for a ball bearing according to claim 1 or 2, characterized in that: and a conical channel (5) with the section diameter gradually reduced is arranged at the position where the constant temperature section (2) leads to the heating section (3).
4. A ball preparation system for a ball bearing according to claim 3, wherein: and a vertical cylindrical channel (6) connected with the conical channel (5) is arranged in the cooling section (4).
5. The ball preparation system for a ball bearing according to claim 4, wherein: the upper part of the cylindrical channel (6) is connected with a discharging cavity (7), and the diameter of the discharging cavity (7) is larger than that of the cylindrical channel (6).
6. The ball preparation system for a ball bearing according to any one of claims 1, 2, 4 or 5, wherein: the outer shell (1) is made of magnesia carbon bricks made of alkaline refractory materials.
7. The ball preparation system for a ball bearing according to claim 6, wherein: an electric heating belt (8) is wound outside the heating section (3).
8. The ball preparation system for a ball bearing according to claim 7, wherein: the cooling section (4)
A cooling water pipe (9) is wound outside.
9. The control method of a ball bearing manufacturing system according to claim 8, characterized by comprising the steps of:
the method comprises the following steps: presetting, namely adjusting the constant temperature section (2), the heating section (3) and the cooling section (4) to preset temperatures;
step two: spraying metal liquid drops, and controlling a nozzle (12) to spray high-chromium steel liquid drops to the constant-temperature section (2);
step three: and (3) ball forming, wherein the high-chromium steel drops sequentially rise to the heating section (3) and the cooling section (4) in the copper melt, and the high-chromium steel drops form solid balls after passing through a cylindrical channel (6) of the cooling section (4).
CN202010147249.0A 2020-03-05 2020-03-05 Ball preparation system for ball bearing and control method thereof Active CN111054931B (en)

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Application Number Priority Date Filing Date Title
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CN111054931B CN111054931B (en) 2023-09-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115076235A (en) * 2022-06-07 2022-09-20 郑州轻工业大学 Static pressure gas bearing device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6312498B1 (en) * 1999-12-14 2001-11-06 Mk Electron Co., Ltd. Method of manufacturing solder balls
KR20040053080A (en) * 2004-05-31 2004-06-23 김성진 Manufacturing method of metal ball and its apparatus
CN1515350A (en) * 2003-01-03 2004-07-28 清华大学 Granulating equipment for making molten liquid into spherical granule product
JP2004276086A (en) * 2003-03-18 2004-10-07 Fukuda Metal Foil & Powder Co Ltd Tin-zinc solder ball and its production method
CN1602328A (en) * 2001-12-11 2005-03-30 比勒股份公司 Production of spherical particles from a melted mass of plastic
CN104959621A (en) * 2015-08-04 2015-10-07 广东先导稀材股份有限公司 Preparation method and device of metallic particle
CN107803509A (en) * 2017-09-28 2018-03-16 兰州理工大学 Vaccum weightlessness method ball manufacture device and its operating method
CN211638320U (en) * 2020-03-05 2020-10-09 郑州轻工业大学 Ball preparation system for ball bearing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6312498B1 (en) * 1999-12-14 2001-11-06 Mk Electron Co., Ltd. Method of manufacturing solder balls
CN1602328A (en) * 2001-12-11 2005-03-30 比勒股份公司 Production of spherical particles from a melted mass of plastic
CN1515350A (en) * 2003-01-03 2004-07-28 清华大学 Granulating equipment for making molten liquid into spherical granule product
JP2004276086A (en) * 2003-03-18 2004-10-07 Fukuda Metal Foil & Powder Co Ltd Tin-zinc solder ball and its production method
KR20040053080A (en) * 2004-05-31 2004-06-23 김성진 Manufacturing method of metal ball and its apparatus
CN104959621A (en) * 2015-08-04 2015-10-07 广东先导稀材股份有限公司 Preparation method and device of metallic particle
CN107803509A (en) * 2017-09-28 2018-03-16 兰州理工大学 Vaccum weightlessness method ball manufacture device and its operating method
CN211638320U (en) * 2020-03-05 2020-10-09 郑州轻工业大学 Ball preparation system for ball bearing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115076235A (en) * 2022-06-07 2022-09-20 郑州轻工业大学 Static pressure gas bearing device
CN115076235B (en) * 2022-06-07 2024-04-16 郑州轻工业大学 Static pressure gas bearing device

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