Classifications

• • 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
  • F16C33/58—Raceways; Race rings
  • F16C33/62—Selection of substances
• • 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
  • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
  • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
  • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
  • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
  • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
  • F16C19/388—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with four rows, i.e. four row tapered roller bearings
• • 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
  • F16C33/58—Raceways; Race rings
  • F16C33/64—Special methods of manufacture
• • 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
  • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
  • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
  • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
  • F16C35/063—Fixing them on the shaft
• • 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
  • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
  • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
  • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
  • F16C35/067—Fixing them in a housing
• • 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
  • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
  • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
  • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
  • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
• • 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
  • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
  • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
  • F16C19/541—Systems consisting of juxtaposed rolling bearings including at least one angular contact bearing
  • F16C19/542—Systems consisting of juxtaposed rolling bearings including at least one angular contact bearing with two rolling bearings with angular contact
• • 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
  • F16C2223/00—Surface treatments; Hardening; Coating
  • F16C2223/30—Coating surfaces
  • F16C2223/70—Coating surfaces by electroplating or electrolytic coating, e.g. anodising, galvanising
• • 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
  • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
  • F16C2226/30—Material joints
  • F16C2226/40—Material joints with adhesive
• • 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
  • F16C2300/00—Application independent of particular apparatuses
  • F16C2300/10—Application independent of particular apparatuses related to size
  • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
• • 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
  • F16C2300/00—Application independent of particular apparatuses
  • F16C2300/20—Application independent of particular apparatuses related to type of movement
  • F16C2300/28—Reciprocating movement
• • 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
  • F16C2326/00—Articles relating to transporting
• • 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
  • F16C43/00—Assembling bearings
  • F16C43/04—Assembling rolling-contact bearings

Definitions

• the invention relates to bearings known as slewing bearings, which are used in various rotating systems such as cranes, wind turbines, excavators, mining machines, tunnel boring machines, marine cranes, and more specifically, in radar systems' large satellite antennas and turret systems of weapon systems.
• the invention concerns a production method for slewing bearings, which enables the production of these bearings as a single piece by bonding high-strength metals (such as steel) to aluminum rings via a metal-to-metal bonding process instead of manufacturing them in a segmented structure with a steel wire bearing system.
• Slewing bearings are generally produced in a wide variety of sizes and geometries, operating at low speeds with high load capacity. These bearings are resistant to forces coming from different directions and are equipped with steel wire bearing systems. These bearing elements are manufactured externally and mounted onto the bearings. In current systems, aluminum ring gear body elements are frequently used. However, due to the lower mechanical properties and hardness of aluminum compared to steel, desired surface hardening processes cannot be applied to this material, leading to deformation problems in the aluminum body parts used. The use of high-strength materials like steel as bearing elements is intended to address this issue. The steps of the known method are as follows: Steel wire is brought to the appropriate geometry through a cold drawing method.
• the gaps at the junction points of the parts can lead to a loss of system precision over time and rapid deformation of the bearing rolling elements.
• the wire is bent to the appropriate diameter for the aluminum ring. At this stage, the wire can twist and turn around itself during the bending process. Correcting this deformation is generally difficult.
• the wire undergoes a heat treatment to achieve the appropriate hardness. At this stage, high temperatures followed by rapid cooling can cause distortions, and correcting these distortions is generally difficult. These known methods can negatively affect the long- term performance of the bearings. Current solutions are insufficient to address the production and performance issues.
• the process of applying a steel wire bearing system to the aluminum part is as follows: ⁇ Obtaining the appropriate geometry of the wires through cold drawing method.
• the upper roller path and the lower roller path are in the form of annular circular tubes, and the middle roller path is also in the form of an annular square tube.
• the diameters or side lengths of the roller paths are equal; the annular circular tube-shaped roller paths are filled with spherical rollers internally; the square tube-shaped roller paths are filled with short cylindrical rollers internally, and the diameters of the short cylindrical rollers are slightly larger than the side lengths of the square tube-shaped roller paths.
• the roller paths can also be filled alternately with spherical rollers and cylindrical rollers; each pair of adjacent or close short cylindrical rollers intersects each other vertically; the diameters of the spherical rollers and the cylindrical rollers are equal. This document does not mention a metal-to-metal bonding method.
• This document describes a double-row sealed slewing bearing consisting of an outer ring, a rolling body, a sealing ring, and an inner ring of the slewing bearing, where the middle of the outer ring and the middle of the inner ring form a rolling path.
• the rolling body is arranged in the rolling path, and an upper T-shaped groove is formed at the edge of the upper end face of the outer ring, while a first circular sealing groove is formed at the opposite position of the outer circumference of the inner ring.
• a T-shaped lower groove is formed at the edge of the lower end face of the inner ring, and a second circular sealing groove is formed at the opposite position of the inner hole face of the outer ring.
• the outer ring and the inner ring are sealed with a sealing ring, one end of the sealing ring is fixed in the upper T-shaped groove or the lower T-shaped groove, and the other end of the sealing ring is fixed in the first circular sealing groove.
• This double-row sealed slewing bearing effectively prevents foreign substances such as water and dust from entering the rolling path.
• This document does not mention a steel- aluminum bonding method.
• Another example of the state of the art is document CN208185242.
• This document describes a light-duty aluminum rotary bearing.
• the outer strip, inner circle, and rolling element are included; the outer strip includes an aluminum alloy outer strip base element and presents an outer roller path groove on the connection ring on the aluminum base element.
• the alloy outer strip, inner circle includes an aluminum alloy inner circle base element and presents an inner roller path groove on the anchor ring outside the aluminum alloy inner circle base element, which has two stainless steel wires to insert into the outer roller path groove and the inner roller path groove.
• the four stainless steel wires' longitudinal section forms a square
• the outer roller path groove and the inner roller path groove form a rolling path
• the rolling element is mounted in contact with the stainless steel wire channel.
• the present invention relates to a method for producing slewing bearings that eliminates the disadvantages mentioned above and brings new advantages to the relevant technical field.
• the main objective of the invention is to present a slewing bearing produced as a single piece by bonding a steel part to aluminum rings via a metal-to-metal bonding process instead of manufacturing it in a segmented structure with a steel wire bearing system.
• the objective of the invention is to present a high-performance and durable slewing bearing by simplifying the assembly geometry and bonding the active working surfaces with a metal-to-metal bonding process.
• the invention provides a slewing bearing production method used in rotating systems such as cranes, wind turbines, excavators, mining machines, tunnel boring machines, marine cranes, and more specifically, in radar systems' large satellite antennas and turret systems of weapon systems, including the following steps: a) Machining the aluminum inner ring and aluminum outer ring to pre-dimensions, and machining the steel part to pre-dimensions for bonding operation, b) Bonding the steel part between the aluminum inner ring and aluminum outer ring, c) Machining the aluminum inner ring, aluminum outer ring, and steel part together in a processing machine to the final form, d) Assembling the final form of the aluminum inner ring and aluminum outer ring with other sub-parts to produce the final
• Figure 1 Sectional view of the slewing bearing subject to the invention.
• Figure 2a View of the aluminum inner ring of the slewing bearing subject to the invention.
• Figure 2b View of the aluminum outer ring of the slewing bearing subject to the invention.
• Figure 3 View of the steel part of the slewing bearing subject to the invention.
• Figure 4a View of the aluminum inner ring and steel part of the slewing bearing subject to the invention.
• Figure 4b View of the aluminum outer ring and steel part of the slewing bearing subject to the invention.
• Figure 5a View of the aluminum inner ring and steel part of the slewing bearing subject to the invention.
• Figure 5b View of the aluminum outer ring of the slewing bearing subject to the invention.
• Figure 6 General view of the slewing bearing subject to the invention. Parça Referanslar ⁇ n ⁇ n Aç ⁇ klanmas ⁇ 10a.Aluminum inner ring 10b.Aluminum outer ring 20. Steel part 30. Adhesive Detailed Description of the Invention In this detailed description, the slewing bearing production method subject to the invention is explained only for better understanding and should not be considered as limiting.
• the invention relates to a slewing bearing production method (Figure 1) used in rotating systems such as cranes, wind turbines, excavators, mining machines, tunnel boring machines, marine cranes, and more specifically, in radar systems' large satellite antennas and turret systems of weapon systems.
• the slewing bearing production method subject to the invention includes the following steps: Machining the aluminum inner ring (10a) and aluminum outer ring (10b) to pre- dimensions (Figure 2a, Figure 2b), and bringing the steel part (20) to be bonded ( Figure 3) to pre-dimensions,
• the aluminum inner ring (10a) and aluminum outer ring (10b) which have been pre- sized, are taken for preparation for bonding and surface preparation.
• the surface preparation processes are as follows in sequence: ⁇ The layer formed on the surface of the aluminum inner ring (10a) and aluminum outer ring (10b) as a result of the anodizing process is very thin and provides corrosion resistance. ⁇ Bonding prime process. After the anodizing and prime processes, the surfaces of the aluminum inner ring (10a) and aluminum outer ring (10b) are cleaned. The pre-sizing of the steel part (20), which is to be bonded to the aluminum inner ring (10a) and aluminum outer ring (10b) and shown in Figure 3, is provided by traditional methods. The surface preparation process of the stainless steel part (20) with rough dimensions obtained is performed.
• film adhesive (30) is applied to the aluminum inner ring (10a), aluminum outer ring (10b), and steel part (20).
• the steel part (20) is attached to the aluminum inner ring (10a), and then the aluminum outer ring (10b) is placed outside the aluminum inner ring (10a) as shown in Figure 4b and assembled.
• the curing process is performed on the aluminum inner ring (10a) and aluminum outer ring (10b) with the steel part (20) in between, and the aluminum inner ring (10a), aluminum outer ring (10b), and steel part (20) brought to their final dimensions together ( Figures 5a and 5b).
• the final form of the aluminum inner ring (10a) and aluminum outer ring (10b) is combined with other sub-parts to produce the final product.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=97445290

Family Applications (1)

Country Status (2)

Family Cites Families (4)

• 2024
  • 2024-07-16 GB GB2513397.6A patent/GB2642119A/en active Pending
  • 2024-07-16 EP EP24843622.2A patent/EP4649243A1/de active Pending

Also Published As

Similar Documents

Legal Events