CN214304875U

CN214304875U - Impact-resistant oilless bearing

Info

Publication number: CN214304875U
Application number: CN201922180752.1U
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: 2021-09-28
Anticipated expiration: 2029-12-06

Abstract

The utility model relates to a bearing technical field just discloses an impact-resistant oilless bearing, including wear-resisting subassembly, annular steel ring and lubricated subassembly, lubricated subassembly's outer wall connection is in wear-resisting subassembly's inside, wear-resisting subassembly includes that copper plating layer, low carbon steel, copper bisque and PTFE fibre mix the layer, and the outer lane of copper plating layer is connected with the inner circle of low carbon steel, and the outer lane of low carbon steel is connected with the inner circle on copper powder layer, and the outer lane on copper bisque and the inner circle that the PTFE fibre mixed the layer are connected, lubricated subassembly includes graphite and the compound solid lubricant of MoS2, and the outer lane of graphite is connected with the inner circle of the compound solid lubricant of MoS 2. The utility model provides a current oilless bearing can't possess high load capacity and good antifatigue characteristic, cause unable suitable dynamic load and the impact load operating condition that is used for, cause the problem that oilless bearing's life reduces.

Description

Impact-resistant oilless bearing

Technical Field

The utility model relates to a bearing technical field specifically is an impact-resistant oilless bearing.

Background

The oilless bearing is a novel lubricating bearing with the characteristics of a metal bearing and oilless lubricating bearings, a metal matrix bears load, a solid lubricating material with a special formula plays a lubricating role, and the oilless bearing is widely applied to metallurgy continuous casting machines, steel rolling equipment, mining machinery, ships, steam turbines, water turbines, injection molding machines and equipment production lines, but the existing oilless bearing cannot have high load capacity and good anti-fatigue property, so that the oilless bearing cannot be suitable for working conditions of dynamic load and impact load, and the service life of the oilless bearing is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an impact-resistant oilless bearing reaches to have high load capacity and good antifatigue characteristic, is fit for being used for dynamic load and impact load operating condition, promotes oilless bearing life's purpose.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an impact-resistant oilless bearing, includes wear assembly, annular steel ring and lubricated subassembly, lubricated subassembly's wall connection is in wear assembly's inside.

Preferably, the wear-resistant component comprises a copper electroplating layer, low-carbon steel, a copper powder layer and a PTFE fiber mixing layer, an outer ring of the copper electroplating layer is connected with an inner ring of the low-carbon steel, an outer ring of the low-carbon steel is connected with an inner ring of the copper powder layer, and an outer ring of the copper powder layer is connected with an inner ring of the PTFE fiber mixing layer.

Preferably, the lubricating component comprises graphite and a MoS2 composite solid lubricant, and an outer ring of the graphite is connected with an inner ring of the MoS2 composite solid lubricant.

Preferably, the copper electroplating layer, the low-carbon steel, the copper powder layer and the PTFE fiber mixed layer are all internally provided with movable openings, and the outer ring of the graphite and the MoS2 composite solid lubricant are connected with the inner wall of each movable opening.

Preferably, the thickness of the PTFE fiber mixed layer is 0.01-0.03 mm, the thickness of the copper powder layer is 0.20-0.35 mm, the thickness of the copper electroplated layer is 0.002mm, and the thickness of the low-carbon steel is 2-2.5 mm.

Preferably, the thickness of the graphite is 3-3.5 mm, and the thickness of the MoS2 composite solid lubricant is 0,001 mm.

The utility model provides an impact-resistant oilless bearing. The method has the following beneficial effects:

(1) the utility model discloses an adopt thickness to be 0.01 ~ 0.03 mm's PPTF fibre to mix the layer, can form the fine transfer membrane protection of one deck to the grinding spindle, the self-lubricating performance of bearing is provided, adopt thickness to be 0.20 ~ 0.35 mm's copper powder layer, fine bearing capacity and wearability have, good heat conductivity can in time shift the heat that produces in the bearing function process, combined material can permeate in the clearance of copper powder ball, bonding strength has been improved, adopt thickness to be 2 ~ 2.5 mm's low carbon steel, fine bearing capacity and heat transfer effect have been provided, adopt thickness to be 0.002mm copper plating layer, make it have better corrosion resisting property, thereby promote oilless bearing's high load capacity and good antifatigue characteristic from many aspects, be fit for dynamic load and impact load operating condition, promote oilless bearing life's purpose.

(2) The utility model discloses a set up the movable opening in wear-resisting subassembly's inside, inlay the inside that the movable opening is inlayed with lubricated subassembly afterwards, because of graphite and the compound solid lubricant's of MoS2 high performance solid lubrication product. The bearing breaks through the limitation that a common bearing is lubricated by an oil film, in the using process, the solid lubricant is rubbed with a shaft by friction heat to form an excellent condition of oil and powder coexistence lubrication, the shaft is protected from abrasion, the solid lubrication characteristic is permanent, the hardness of the bearing is doubled compared with that of a common copper sleeve, the wear resistance is doubled, and the oil-free bearing can better display the excellent performance under the reciprocating motion condition.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic structural view of the wear assembly of the present invention;

fig. 3 is a schematic structural diagram of the lubricating assembly of the present invention.

In the figure: 1 wear-resistant component, 2 annular steel rings, 3 lubricating components, 101 copper electroplating layers, 102 low-carbon steel, 103 copper powder layers, 104PTFE fiber mixed layers, 301 graphite and 302MoS2 composite solid lubricants.

Detailed Description

As shown in fig. 1-3, the utility model provides a technical solution: an impact-resistant oilless bearing comprises a wear-resistant component 1, an annular steel ring 2 and a lubricating component 3, wherein the outer wall of the lubricating component 3 is embedded in the wear-resistant component 1.

Further, the wear-resistant component 1 comprises a copper electroplating layer 101, low-carbon steel 102, a copper powder layer 103 and a PTFE fiber mixed layer 104, wherein the outer ring of the copper electroplating layer 101 is fixedly connected with the inner ring of the low-carbon steel 102, the outer ring of the low-carbon steel 102 is fixedly connected with the inner ring of the copper powder layer 103, and the outer ring of the copper powder layer 103 is fixedly connected with the inner ring of the PTFE fiber mixed layer 104.

Further, the lubricating component 3 comprises graphite 301 and a MoS2 composite solid lubricant 302, and an outer ring of the graphite 301 is fixedly connected with an inner ring of the MoS2 composite solid lubricant 302.

Further, the copper plating layer 101, the low carbon steel 102, the copper powder layer 103, and the PTFE fiber mixed layer 104 are each provided with a movable opening therein, and the outer ring of the graphite 301 and the MoS2 composite solid lubricant 302 are fitted into the inner wall of the movable opening.

Further, the thickness of the PTFE fiber mixed layer 104 is 0.01 to 0.03mm, the thickness of the copper powder layer 103 is 0.20 to 0.35mm, the thickness of the copper plating layer 101 is 0.002mm, and the thickness of the low carbon steel 102 is 2 to 2.5 mm.

Further, the thickness of the graphite 301 is 3-3.5 mm, and the thickness of the MoS2 composite solid lubricant 302 is 0,001 mm.

When the lubricating assembly is used, the copper electroplating layer 101, the copper powder layer 103 and the PTFE fiber mixed layer 104 are combined on the outer portion of the low-carbon steel 102, then the low-carbon steel 102 is bent, the bent low-carbon steel 102 forms a cylinder, the bent portion is welded, a movable opening is drilled in the copper electroplating layer 101, the low-carbon steel 102, the copper powder layer 103 and the PTFE fiber mixed layer 104 through an electric drill, then the MoS2 composite solid lubricant 302 is coated on the outer portion of the graphite 301, and finally the lubricating assembly 3 formed by combining the graphite 301 and the MoS2 composite solid lubricant 302 is embedded into the movable opening.

To sum up, the utility model discloses an adopt the PTFE fibre mixed layer 104 of thickness 0.01 ~ 0.03mm, can form a layer fine transfer membrane protection counter-grinding axle, provide the self-lubricating property of bearing, adopt the copper powder layer 103 of thickness 0.20 ~ 0.35mm, have fine bearing capacity and wearability, good heat conductivity can in time shift the heat that produces in the bearing operation process, combined material can infiltrate in the clearance of copper powder ball, bonding strength is improved, adopt the low carbon steel 102 of thickness 2 ~ 2.5mm, fine bearing capacity and heat transfer effect are provided, adopt the copper plating layer 101 of thickness 0.002mm, make it have better corrosion resisting property, thereby promote oilless bearing's high load-carrying capacity and good antifatigue characteristic from many aspects, be fit for dynamic load and impact load operating condition, promote the purpose of bearing life, the utility model discloses a movable orifice is seted up to the inside of wear-resisting component 1, the lubricating member 3 is then inserted into the interior of the movable opening, and a high-performance solid lubricating product of the graphite 301 and the MoS2 composite solid lubricant 302 is obtained. The bearing breaks through the limitation that a common bearing is lubricated by an oil film, in the using process, the solid lubricant is rubbed with a shaft by friction heat to form an excellent condition of oil and powder coexistence lubrication, the shaft is protected from abrasion, the solid lubrication characteristic is permanent, the hardness of the bearing is doubled compared with that of a common copper sleeve, the wear resistance is doubled, and the oil-free bearing can better display the excellent performance under the reciprocating motion condition.

Claims

1. The utility model provides an impact-resistant oilless bearing, includes wear-resisting subassembly (1), annular steel ring (2) and lubricated subassembly (3), its characterized in that: the outer wall of the lubricating component (3) is connected to the interior of the wear-resisting component (1);

the wear-resistant component (1) comprises a copper electroplating layer (101), low-carbon steel (102), a copper powder layer (103) and a PTFE fiber mixing layer (104), wherein the outer ring of the copper electroplating layer (101) is connected with the inner ring of the low-carbon steel (102), the outer ring of the low-carbon steel (102) is connected with the inner ring of the copper powder layer (103), the outer ring of the copper powder layer (103) is connected with the inner ring of the PTFE fiber mixing layer (104), the thickness of the copper powder layer (103) is 0.20-0.35 mm, the thickness of the copper electroplating layer (101) is 0.002mm, and the thickness of the low-carbon steel (102) is 2-2.5 mm.

2. An impact-resistant oilless bearing according to claim 1, characterized in that: the lubricating component (3) comprises graphite (301) and a MoS2 composite solid lubricant (302), wherein an outer ring of the graphite (301) is connected with an inner ring of the MoS2 composite solid lubricant (302).

3. An impact-resistant oilless bearing according to claim 1, characterized in that: the inner parts of the copper electroplating layer (101), the low-carbon steel (102), the copper powder layer (103) and the PTFE fiber mixed layer (104) are all provided with movable openings, and the outer ring of the graphite (301) and the MoS2 composite solid lubricant (302) are connected with the inner wall of each movable opening.

4. An impact-resistant oilless bearing according to claim 1, characterized in that: the thickness of the PTFE fiber mixed layer (104) is 0.01-0.03 mm.

5. An impact-resistant oilless bearing according to claim 2, wherein: the thickness of the graphite (301) is 3-3.5 mm, and the thickness of the MoS2 composite solid lubricant (302) is 0.001 mm.