CN212131064U

CN212131064U - Oilless bearing with strong self-lubricating capability

Info

Publication number: CN212131064U
Application number: CN201922176639.6U
Authority: CN
Inventors: 戴星月; 张兰英
Original assignee: Huayi Bearing Technology Jiangsu Co ltd
Current assignee: Huayi Bearing Technology Jiangsu Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-12-11
Anticipated expiration: 2029-12-06

Abstract

The utility model relates to a disclose oil free bearing that self-lubricating ability is strong, including the bearing body, the bearing body is by the PTFE fibre mix layer, copper bisque, separate oxygen layer, heat insulating layer, hardness protective layer, anticorrosive coating, and the surface on copper bisque scribbles and separates the oxygen layer, and the outer lane fixedly connected with PTFE fibre that separates the oxygen layer mixes the layer, separates the inner circle fixedly connected with heat insulating layer on oxygen layer. This oilless bearing that self-lubricating ability is strong, through the hardness protective layer that adopts 3Cr13 stainless steel to make at the inner circle fixed connection on heat insulating layer, because 3Cr13 has high rigidity and the good performance of wearability, prevented to install and warp because of bearing the heavy load at the bearing, through adopting to scribble ATP boron nitrogen coating on the surface of copper powder layer and replace the copper plating layer and regard as the oxygen insulating layer, when oxygen insulating layer is destroyed, again with ATP boron nitrogen coating figure on can, need not take off the bearing and carry out the copper plating layer, operation process is simple, and ATP boron nitrogen coating scribbles and is lower than the expense of carrying out the copper plating layer once more, use cost is reduced.

Description

Oilless bearing with strong self-lubricating capability

Technical Field

The utility model relates to a bearing technical field specifically is a self-lubricating ability is strong oilless bearing.

Background

The oilless bearing with strong self-lubricating capability is a novel lubricated bearing with the characteristics of a metal bearing and an oilless lubricated bearing, a metal base bears load, a solid lubricating material with a special formula plays a lubricating role, and the oilless bearing is widely applied to a metallurgical continuous casting machine, a steel rolling device, mining machinery, ships, steam turbines, water turbines, injection molding machines and equipment production lines, but the existing oilless bearing with strong self-lubricating capability generally adopts a copper plating layer on the surface of copper powder to prevent the oxidation of the copper powder layer, but the copper plating layer can be damaged along with the lapse of time, the copper plating layer needs to be processed again, at the moment, the whole bearing needs to be taken down to be processed more difficultly, the cost of the copper plating layer is higher, the processing cost is increased, and the inner ring in the prior art adopts low-carbon steel, and the low-carbon steel has good wear resistance, it is not hard enough to bear heavy load and will deform, which is not favorable for the movement of the shaft.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a self-lubricating ability is strong oilless bearing reaches reduction in use cost, prevents the purpose of warping.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an oilless bearing that self-lubricating ability is strong, includes the bearing body, the bearing body by the PTFE fibre mix layer, copper bisque, separate the oxygen layer, heat insulating layer, hardness protective layer, anticorrosive coating, the surface on copper bisque scribbles at a distance from the oxygen layer, the outer lane fixedly connected with PTFE fibre that separates the oxygen layer mixes the layer, the inner circle fixedly connected with heat insulating layer on heat insulating layer, the inner circle fixedly connected with hardness protective layer on heat insulating layer, the surface of hardness protective layer scribbles the anticorrosive coating.

The front surface of the bearing body and the position of the copper powder layer are provided with heat dissipation holes.

Preferably, the number of the heat dissipation holes 2 is sixteen, and the heat dissipation holes are uniformly distributed along the circular cross section of the copper powder layer 102.

Preferably, the thickness of the oxygen barrier layer 103 is 0.5mm-1mm, the oxygen barrier layer 103 extends to the inner wall of the heat dissipation hole 2, the material of the oxygen barrier layer 103 is ATP boron nitrogen paint, the ATP boron nitrogen paint forms a smooth film layer after drying, lubrication, non-wetting, corrosion prevention and high wear resistance can be provided, the ATP boron nitrogen paint has oxidation resistance, the boron nitrogen paint can be used in an oxidizing atmosphere with the temperature of 850 ℃, the ATP boron nitrogen coating is also useful for high resistance and has good thermal conductivity.

Preferably, the number of the heat dissipation holes is sixteen, and the heat dissipation holes are uniformly distributed along the circular section of the copper powder layer

Preferably, the thickness of the heat insulation layer is 2-4mm, and the heat insulation layer is made of low-carbon steel.

Preferably, the thickness of the hardness protection layer is 4cm-6cm, the material adopted by the hardness protection layer is 3Cr13 stainless steel, and the 3Cr13 stainless steel contains high carbon, so that the hardness and the wear resistance are high, the chemical components of the 3Cr13 comprise 0.26-0.35 of carbon C, less than or equal to 1.00 of silicon Si, less than or equal to 1.00 of manganese Mn, less than or equal to 0.030 of sulfur S, 12.00-14.00 of chromium Cr, and less than or equal to 0.60 of nickel Ni.

Preferably, the thickness of the anticorrosive coating is 0.3-0.6mm, the anticorrosive coating is made of fluorocarbon metal coating, the fluorocarbon metal coating is prepared by taking modified polymeric resin as a main base material and adding various corrosion-resistant pigments, fillers, anti-radiation auxiliaries, solvents and the like through grinding and dispersing, and the component I and the component II are curing agents.

The utility model provides an oilless bearing that self-lubricating ability is strong. The method has the following beneficial effects: the hardness protection layer made of 3Cr13 stainless steel is fixedly connected to the inner ring of the heat insulation layer, the 3Cr13 has high hardness and good wear resistance, deformation of the bearing due to heavy load bearing is prevented, ATP boron nitrogen paint is coated on the surface of the copper powder layer to serve as the oxygen insulation layer instead of a copper electroplated layer, when the oxygen insulation layer is damaged, the ATP boron nitrogen paint is coated on the surface of the copper powder layer, the bearing does not need to be taken down to be subjected to the copper electroplated layer, the operation process is simple, the cost of coating the ATP boron nitrogen paint is lower than that of coating the copper electroplated layer again, and the use cost is reduced.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a cross-sectional view of fig. 2 according to the present invention.

In the figure: 1 bearing body, 2 heat dissipation holes, 101PTFE fiber mixed layer, 102 copper powder layer, 103 oxygen isolation layer, 104 thermal isolation layer, 105 hardness protection layer and 106 anticorrosive layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: an oilless bearing with strong self-lubricating capability comprises a bearing body 1, wherein the bearing body 1 is composed of a PTFE fiber mixed layer 101, a copper powder layer 102, an oxygen isolation layer 103, a heat insulation layer 104, a hardness protection layer 105 and an anticorrosive layer 106, the oxygen isolation layer 103 is formed by coating ATP boron nitrogen paint on the surface of the copper powder layer 102 instead of a copper plating layer, when the oxygen isolation layer 103 is damaged, the ATP boron nitrogen paint is coated on the surface of the copper powder layer, the copper plating layer is not required to be removed from the bearing, the operation process is simple, the cost of coating ATP boron nitrogen paint is lower than that of coating the copper plating layer again, the use cost is reduced, the oxygen isolation layer 103 is coated on the surface (all surfaces) of the copper powder layer 102, the thickness of the oxygen isolation layer 103 is 0.5mm-1mm, the oxygen isolation layer 103 extends to the inner wall of a heat dissipation hole 2, the material adopted by the ATP boron nitrogen paint is smooth film layer, the ATP boron nitrogen paint is dried to form a smooth film layer which can, non-wetting, corrosion-resistant, high wear-resistant, ATP boron nitrogen coating with oxidation-resistant properties, boron nitrogen coating usable in oxidizing atmospheres with temperatures up to 850 ℃, ATP boron nitrogen coating being also useful for high electrical resistivity and having good thermal conductivity, in use, the boron nitrogen coating should be applied as a single coating, 0.0254-0.254mm thick at a time without surface defects. Multiple layers can be applied, but when the next layer is applied, the base layer must be completely dried, the outer ring of the oxygen-insulating layer 103 is fixedly connected with the PTFE fiber mixed layer 101, the inner ring of the oxygen-insulating layer 103 is fixedly connected with the heat-insulating layer 104, the inner ring of the heat-insulating layer 104 is fixedly connected with the hardness protection layer 105 made of 3Cr13 stainless steel, because the 3Cr13 has high hardness and good wear resistance, the bearing is prevented from being deformed due to bearing heavy load, the inner ring of the heat-insulating layer 105 is fixedly connected with the hardness protection layer 105, the thickness of the hardness protection layer 105 is 4cm-6cm, the hardness protection layer 105 is made of 3Cr13 stainless steel and 3Cr13 stainless steel which contain high carbon and have high strength, hardness and wear resistance, the chemical components of the 3Cr13 comprise 0.26-0.35 carbon, 1.00 silicon Si, 1.00 manganese Mn, 1.00S, 0.030 sulfur S, 12.00-14.00 chromium, the nickel Ni is allowed to contain less than or equal to 0.60, the outer surface of the hardness protection layer 105 is coated with an anticorrosive layer 106, the thickness of the anticorrosive layer 106 is 0.3-0.6mm, the anticorrosive layer 106 is made of fluorocarbon metal coating, the fluorocarbon metal coating is made of modified polymer resin serving as a main base material, various corrosion-resistant pigments, fillers, radiation-resistant auxiliaries, solvents and the like are added, and the mixture is ground and dispersed to form a first component, and a second component, which is a curing agent.

The working principle is as follows: when the bearing is used, the inner ring of the thermal insulation layer 104 is fixedly connected with the hardness protection layer 105 made of 3Cr13 stainless steel, the 3Cr13 has high hardness and good wear resistance, deformation of the bearing when the bearing is installed due to heavy load bearing is prevented, ATP boron nitrogen paint is coated on the surface of the copper powder layer 102 to serve as the oxygen insulation layer 103 instead of a copper electroplating layer, when the oxygen insulation layer 103 is damaged, the ATP boron nitrogen paint is drawn on the bearing, the copper electroplating layer is not required to be removed from the bearing, the operation process is simple, the cost of coating the ATP boron nitrogen paint is lower than that of coating the copper electroplating layer again, the use cost is reduced, the thermal insulation layer 104 is made of low-carbon steel, the thermal insulation effect is low relative to copper and other alloys, the inner ring of the thermal insulation layer 104 is achieved, and the corrosion prevention layer 106 achieves the corrosion prevention protection effect on the material 3Cr13 of the hardness protection layer 105.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an oilless bearing that self-lubricating ability is strong, includes bearing body (1), its characterized in that: the bearing body (1) is composed of a PTFE fiber mixed layer (101), a copper powder layer (102), an oxygen insulation layer (103), a heat insulation layer (104), a hardness protection layer (105) and an anticorrosive layer (106), wherein the surface of the copper powder layer (102) is coated with the oxygen insulation layer (103), the outer ring of the oxygen insulation layer (103) is fixedly connected with the PTFE fiber mixed layer (101), the inner ring of the oxygen insulation layer (103) is fixedly connected with the heat insulation layer (104), the inner ring of the heat insulation layer (104) is fixedly connected with the hardness protection layer (105), and the outer surface of the hardness protection layer (105) is coated with the anticorrosive layer (106);

the front surface of the bearing body (1) and the position of the copper powder layer (102) are provided with heat dissipation holes (2).

2. An oilless bearing with high self-lubricating ability as claimed in claim 1, wherein: the number of the heat dissipation holes (2) is sixteen, and the heat dissipation holes are uniformly distributed along the circular section of the copper powder layer (102).

3. An oilless bearing with high self-lubricating ability as claimed in claim 1, wherein: the thickness of the oxygen isolation layer (103) is 0.5mm-1mm, the oxygen isolation layer (103) extends to the inner wall of the heat dissipation hole (2), and the material adopted by the oxygen isolation layer (103) is ATP boron nitrogen coating.

4. An oilless bearing with high self-lubricating ability as claimed in claim 1, wherein: the thickness of the heat insulation layer (104) is 2-4mm, and the heat insulation layer (104) is made of low-carbon steel.

5. An oilless bearing with high self-lubricating ability as claimed in claim 1, wherein: the thickness of the hardness protection layer (105) is 4cm-6cm, and the material adopted by the hardness protection layer (105) is 3Cr13 stainless steel.

6. An oilless bearing with high self-lubricating ability as claimed in claim 1, wherein: the thickness of the anticorrosive coating (106) is 0.3-0.6mm, and the anticorrosive coating (106) is made of fluorocarbon metal paint.