CN115045915A - Composite sliding bearing - Google Patents

Composite sliding bearing Download PDF

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Publication number
CN115045915A
CN115045915A CN202210779184.0A CN202210779184A CN115045915A CN 115045915 A CN115045915 A CN 115045915A CN 202210779184 A CN202210779184 A CN 202210779184A CN 115045915 A CN115045915 A CN 115045915A
Authority
CN
China
Prior art keywords
ring
outer ring
inner ring
sealing
composite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210779184.0A
Other languages
Chinese (zh)
Inventor
徐金峰
朱伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Ccvi Bearing Co ltd
Original Assignee
Jiangsu Ccvi Bearing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Ccvi Bearing Co ltd filed Critical Jiangsu Ccvi Bearing Co ltd
Priority to CN202210779184.0A priority Critical patent/CN115045915A/en
Publication of CN115045915A publication Critical patent/CN115045915A/en
Pending legal-status Critical Current

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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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1095—Construction relative to lubrication with solids as lubricant, e.g. dry coatings, powder
    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • 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
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sealing Of Bearings (AREA)

Abstract

The invention provides a composite sliding bearing which comprises an outer ring, an inner ring, a sealing ring and a protective structure, wherein the outer ring end faces are processed at the two axial ends of the outer diameter of the outer ring, an outer ring sealing groove is processed at the end face of the outer ring, the upper lip of the sealing ring is arranged at the outer ring sealing groove, the lower lip of the sealing ring is in interference fit with the inner ring, and the protective structure is contacted with the end face of the outer ring; the protective structure comprises a gasket and a retaining shoulder, when the protective structure selects the gasket, the inner diameter surface of the gasket is arranged at two ends of the outer raceway surface of the inner ring, and the self-lubricating material is arranged on the inner diameter of the outer ring and is in contact with the outer raceway surface of the inner ring; when the protective structure selects the retaining shoulder, the retaining shoulder is used as a part of the inner ring, the inner ring is of an integral structure which is arranged oppositely and is provided with the retaining shoulder at two sides, the integral structure is arranged on the inner diameter of the outer ring, and the retaining shoulder at two sides is contacted with the end face of the outer ring. The protective structure of the invention provides a buffer effect when the bearing is impacted, and improves the impact resistance of the bearing; the sealing washer can avoid external impurity to get into, prolongs bearing life.

Description

Composite sliding bearing
Technical Field
The invention belongs to the technical field of machinery, and particularly relates to an impact-resistant corrosion-resistant long-life composite sliding bearing.
Background
The composite sliding bearing is commonly used in rail transit such as high-speed railway, subway, aircraft, and the like, and the composite sliding bearing is required to have the following properties because the use occasion is special: impact resistance, strong corrosion resistance, high protection, long life, simultaneously because the part that is more with the higher part of cost is mostly installed with other accessories of compound slide bearing, therefore compound slide bearing still should possess the function of protecting other accessories.
Disclosure of Invention
In view of this, the invention provides an impact-resistant and corrosion-resistant long-life composite sliding bearing, so as to meet various requirements of special working conditions on the composite sliding bearing.
The present invention achieves the above-described object by the following technical means.
A composite sliding bearing comprising:
the outer ring is provided with outer ring end faces at two axial ends in the outer diameter direction, an outer ring sealing groove is formed in the end face of the outer ring, and a sealing ring upper lip is arranged at the outer ring sealing groove;
the inner ring is in interference fit with the lower lip of the sealing ring;
and the protective structure is contacted with the end face of the outer ring.
According to a further technical scheme, the inner ring is composed of an inner ring outer raceway surface, an inner ring inner diameter and inner ring end surfaces, the inner ring end surfaces are located at two axial ends of the inner ring outer raceway surface, and the inner ring outer raceway surface is in contact with a self-lubricating material.
According to a further technical scheme, the protective structure is an annular gasket, and inner diameter surfaces of the gasket are arranged at two ends of an outer raceway surface of the inner ring.
According to a further technical scheme, the self-lubricating material is arranged on the inner diameter of the outer ring.
According to a further technical scheme, the end face of the inner ring is treated by nickel plating, zinc-plated nickel alloy, cadmium plating, zinc plating, chromium plating, paint spraying, electrophoretic paint, plastic spraying, phosphating, blackening or passivation.
According to a further technical scheme, the outer raceway surface of the inner ring is provided with a wear-resistant coating.
According to the technical scheme, the inner ring is of an integral structure which is oppositely arranged and two sides of the inner ring are provided with the retaining shoulders, the integral structure is arranged on the inner diameter of the outer ring, and the retaining shoulders on the two sides of the inner ring are in contact with the end face of the outer ring.
In a further technical scheme, the integral structure is made of plastic or resin or an embedded self-lubricating composite material.
According to a further technical scheme, the sealing ring is O-shaped, lip-shaped or sheet-shaped.
In a further technical scheme, the sealing ring is made of, but not limited to, silicon rubber or fluorine silicon.
The beneficial effects of the invention are as follows:
(1) according to the invention, the two sides of the end face of the outer ring are provided with the protective structures (gaskets or retaining shoulders), so that a buffer effect is provided when the product is impacted axially, and the impact resistance of the bearing is improved;
(2) the antifriction design of the outer raceway surface of the inner ring can reduce the hardness of the matrix and improve the integral impact resistance of the bearing;
(3) when the gasket is adopted, the exposed surface (such as the end face of the inner ring) of the bearing can adopt the treatment modes of nickel plating, zinc-nickel alloy plating, cadmium plating, zinc plating, chromium plating, paint spraying, electrophoretic paint spraying, plastic spraying, phosphorization, blackening, passivation and the like, so that the corrosion resistance of the bearing is enhanced;
(4) according to the invention, the two sides of the outer ring are respectively provided with the sealing groove, the sealing ring is arranged in the sealing groove, and by arranging the sealing ring, external impurities can be prevented from entering a working area, and the service life of the bearing is prolonged.
Drawings
FIG. 1(a) is a cross-sectional view of a composite plain bearing according to the present invention;
FIG. 1(b) is a cross-sectional view of a gasket in accordance with the present invention;
FIG. 2 is a cross-sectional view of the composite plain bearing of the present invention after installation;
FIG. 3 is a schematic view of the outer ring structure of the present invention;
FIG. 4 is a schematic view of the inner ring structure of the present invention;
FIG. 5 is a schematic view of the inner ring with shoulders on both sides of the inner ring according to the present invention;
in the figure: 1-outer ring, 2-inner ring, 3-self-lubricating material, 4-sealing ring, 5-gasket, 6-bearing seat, 101-outer ring outer diameter, 102-outer ring inner diameter, 103-outer ring end face, 104-outer ring sealing groove, 201-inner ring outer raceway surface, 202-inner ring inner diameter, 203-inner ring end face.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
Example 1
As shown in fig. 1(a), 1(b) and 2, the composite sliding bearing of the present invention includes an outer ring 1, an inner ring 2, a self-lubricating material 3, a seal ring 4 and a gasket 5, wherein the outer ring 1 and the inner ring 2 are coaxially disposed, and the outer ring 1 is pressed into a bearing seat 6.
As shown in fig. 3, the outer ring 1 is composed of an outer ring outer diameter 101, an outer ring inner diameter 102, an outer ring end surface 103 and an outer ring seal groove 104, the outer ring end surface 103 is located at two axial ends of the outer ring outer diameter 101, the outer ring seal groove 104 is processed at the outer ring end surface 103, referring to fig. 1(a), 1(b) and 2, an upper lip of the seal ring 4 is installed in the outer ring seal groove 104 in a bonding or interference press-in mode, and the self-lubricating material 3 is installed on the outer ring inner diameter 102 in a bonding or interference press-in mode.
As shown in fig. 4, the inner ring 2 is composed of an inner ring outer raceway surface 201, an inner ring inner diameter 202 and an inner ring end surface 203, the inner ring end surface 203 is located at two axial ends of the inner ring outer raceway surface 201, and the inner ring outer raceway surface 201 is in contact with the self-lubricating material 3 to form a pair of sliding friction pairs, so that a rotating function can be realized; the lower lip of the sealing ring 4 is in interference fit with the outer raceway surface 201 of the inner ring, so that dust, muddy water, fine sand particles and moisture are prevented from entering a working area, and a high-protection function is achieved. In the present embodiment, the inner ring 2 is made of a metal material.
The inner diameter surface of the annular gasket 5 is installed at two ends of the inner ring outer raceway surface 201, and the gasket 5 contacts with the outer ring end surface 103 and the bearing seat 6 along the radial direction, so as to protect the outer ring 1 and the bearing seat 6.
In this embodiment, the shape of the sealing ring 4 may be an O-shaped sealing ring, a lip-shaped sealing ring or a sheet-shaped sealing ring, the sealing ring 4 is made of a material including, but not limited to, silicone rubber or fluorosilicone, and the normal use temperature may reach 200 ℃; the material of the gasket 5 can adopt PTFE (polytetrafluoroethylene); the self-lubricating material 3 can be a fabric, a shaft sleeve, an FR soft belt, plastic or resin, and can also be an embedded self-lubricating composite material; the inner ring outer raceway surface 201 can be added with a wear-resistant coating to prolong the service life, and the hardness of the matrix can be properly reduced while the wear-resistant coating is used, so that the wear-resistant and impact-resistant composite material has better impact resistance.
In order to further meet the requirement of high corrosion resistance, the exposed surface (inner ring end face 203) of the bearing can adopt the treatment modes of nickel plating, zinc-plated nickel alloy, cadmium plating, zinc plating, chromium plating, paint spraying, electrophoretic paint, plastic spraying, phosphating, blackening, passivation and the like to enhance the corrosion resistance.
Example 2
Different from the embodiment 1, as shown in fig. 5, the self-lubricating material 3, the inner ring 2 and the gasket 5 in the embodiment 1 are of an integral structure which is arranged oppositely and has blocking shoulders on two sides, the material can be plastic or resin, and an embedded self-lubricating composite material can be adopted, so that the economic cost is saved, the assembly is simple, and the replacement is easy.
Specifically, the shape of the cross section of the overall structure is similar to a hat shape, during installation, the two overall structures are installed on the inner diameter 102 of the outer ring from two axial sides and are in interference fit with the lower lip of the sealing ring 4, and after the installation is completed, the blocking shoulders on the two sides are in contact with the end face 103 of the outer ring and the bearing seat 6 and are also used for protecting the outer ring 1 and the bearing seat 6.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.

Claims (10)

1. A composite sliding bearing, comprising:
the outer ring sealing structure comprises an outer ring (1), outer ring end faces (103) are machined at two axial ends of the outer diameter of the outer ring (1), an outer ring sealing groove (104) is machined at the outer ring end face (103), and an upper lip of a sealing ring (4) is installed at the outer ring sealing groove (104);
the inner ring (2) is in interference fit with the lower lip of the sealing ring (4);
and the protective structure is in contact with the outer ring end surface (103).
2. A composite plain bearing according to claim 1, wherein the inner ring (2) is composed of an inner ring outer raceway surface (201), an inner ring inner diameter (202) and an inner ring end surface (203), the inner ring end surface (203) being located at both axial ends of the inner ring outer raceway surface (201), the inner ring outer raceway surface (201) being in contact with the self-lubricating material (3).
3. A composite plain bearing according to claim 2, wherein the protective structure is an annular shim (5), the inner diameter surface of the shim (5) being mounted at both ends of the inner ring outer raceway surface (201).
4. A composite plain bearing according to claim 2, wherein the self-lubricating material (3) is mounted on the outer ring inner diameter (102).
5. A composite slide bearing according to claim 2, wherein the inner ring end face (203) is treated with nickel or zinc-nickel alloy plating or cadmium plating or zinc plating or chrome plating or paint spraying or electrophoretic paint spraying or plastic spraying or phosphatization or blackening or passivation.
6. A composite slide bearing according to claim 2, characterized in that the inner ring outer raceway surface (201) is provided with a wear resistant coating.
7. A composite plain bearing according to claim 1, wherein the inner ring (2) is of two oppositely arranged integral structures with shoulders on both sides, the integral structures being mounted on the inner diameter (102) of the outer ring, the shoulders on both sides being in contact with the end surface (103) of the outer ring.
8. A composite plain bearing according to claim 7, wherein the material of the unitary structure is a plastics or resin or a self-lubricating mosaic composite material.
9. Composite plain bearing according to claim 2 or 7, characterized in that the sealing ring (4) is O-ring, lip-seal or sheet-shaped.
10. The composite plain bearing according to claim 2 or 7, characterized in that the material of the sealing ring (4) is, but not limited to, silicone rubber or fluorosilicone rubber.
CN202210779184.0A 2022-07-04 2022-07-04 Composite sliding bearing Pending CN115045915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210779184.0A CN115045915A (en) 2022-07-04 2022-07-04 Composite sliding bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210779184.0A CN115045915A (en) 2022-07-04 2022-07-04 Composite sliding bearing

Publications (1)

Publication Number Publication Date
CN115045915A true CN115045915A (en) 2022-09-13

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ID=83165284

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210779184.0A Pending CN115045915A (en) 2022-07-04 2022-07-04 Composite sliding bearing

Country Status (1)

Country Link
CN (1) CN115045915A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024016463A1 (en) * 2022-07-22 2024-01-25 江苏希西维轴承有限公司 Composite sliding bearing for damping

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024016463A1 (en) * 2022-07-22 2024-01-25 江苏希西维轴承有限公司 Composite sliding bearing for damping

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