CN203879942U

CN203879942U - Self-radiating high-load bearing block

Info

Publication number: CN203879942U
Application number: CN201420328712.1U
Authority: CN
Inventors: 肖诗林
Original assignee: DERNORE BEARINGS Co Ltd
Current assignee: DERNORE BEARINGS Co Ltd
Priority date: 2014-06-09
Filing date: 2014-06-09
Publication date: 2014-10-15
Anticipated expiration: 2024-06-09

Abstract

The utility model relates to a self-radiating high-load bearing block. The bearing block comprises a bearing base and two bearing fixing holes; a bearing chamber in which a bearing is arranged is formed in the bearing base; the bearing comprises an outer ring, an inner ring and a steel ball; an axial hole is formed in the inner ring; a plurality of oil pores are formed in the upper end of the axial hole; an oil channel formed by the oil pores passes through the inner wall of the axial hole and the outer sidewall of the inner ring to realize connection; an annular heat conduction pipe is arranged about the bearing chamber in the bearing base; at least on straight heat conduction pipe communicated with the annular heat conduction pipe and at least one radiating plate that sleeves the straight heat conduction pipe are arranged outside the bearing base; condensate is filled in the annular heat conduction pipe and the straight heat conduction pipe; a rolling path between the outer ring and the inner ring is of a double rolling path structure. With the adoption of the self-radiating high-load bearing block, the bearing capacity of the bearing block is obviously improved on the premise that the space and weight are not greatly increased; in addition, the temperature of the bearing block is effectively lowered down, and the service life of the bearing block is prolonged.

Description

A kind of from heat radiation high capacity bearing support

Technical field

The utility model relates to a kind of bearing support, particularly relates to a kind of from heat radiation high capacity bearing support.

Background technique

Bearing support in Modern Internal-Combustion Engine is the member for spring bearing and camshaft.The material of bearing support is all generally that special bearing support steel is made by various processing, better bearing support steel also has the limiting temperature of their uses.Current bearing support does not all arrange sink, under use state, if temperature is too high, be easy to make bearing support surface to occur segmentation crack, the too high bearing support of temperature is also easy to occur segmentation crack meeting under cold state, the situations such as the product that causes producing occurs being out of shape, pulls, sticking to mould.

The load force of the bearing of camshaft and bearing support is inadequate, easily causes the life-span of bearing support to reduce.But the load force that increases bearing, means the volume and weight that need to increase bearing, can directly cause like this oil consumption of internal-combustion engine to strengthen, reduce the competitiveness of product in market.The load capacity that how can significantly improve again bearing support in the situation that space and weight can not significantly increase is the current technical issues that need to address of those skilled in the art.

Model utility content

It is a kind of from heat radiation high capacity bearing support that the purpose of this utility model is to provide for above-mentioned shortcomings and deficiencies of the prior art, this bearing support not only significantly improves the load capacity of bearing support in the situation that space and weight can not significantly increase, and effectively reduced the temperature of bearing support, extend the working life of bearing support.

The purpose of this utility model is realized by following technological scheme.

A kind of from heat radiation high capacity bearing support, comprise bearing base and be positioned at symmetrically arranged two the pedestal fixed holes in bearing base two ends, on described bearing base, be provided with a bearing bore, in described bearing bore, be provided with the bearing for support rotating axle, this bearing comprises bearing outer ring, bearing inner race and steel ball, and described steel ball is between bearing outer ring and the raceway of bearing inner race; It is characterized in that:

The bearing outer ring of described bearing and bearing bore interference fit; In described bearing inner race, have axis hole, the upper end of described axis hole has multiple oilholes, and the oil duct that described oilhole forms runs through the inwall of connecting shaft hole and the outer side wall of bearing inner race;

Raceway between described bearing outer ring and bearing inner race is the 30-50mm of being separated by between two roller path structures and two raceways;

In described bearing base, be provided with an annular heat conductive tube around bearing bore, be also provided with the straight heat conductive tube of at least one and described annular heat conductive tube conducting outward and at least one is enclosed within the radiating fin on described straight heat conductive tube at described bearing base; Described annular heat conductive tube and straight heat conductive tube are the airtight copper pipe of inner hollow, and this copper pipe inside is reticular structure, and condensed fluid is housed.

Further, in the inner hole surface of described bearing outer ring, be evenly provided with one deck self-lubricating sliding layer; The thickness of described self-lubricating sliding layer is 0.03-0.1mm; This self-lubricating sliding layer is bonded in the inner hole surface of described bearing outer ring by pyrolytic coating.

Further, be also provided with two ring-type oil sealings between described bearing outer ring and bearing inner race, these two ring-type oil sealings lay respectively at described raceway both sides.

Further, described bearing base is one-body molded.

Further, described condensed fluid is water, methyl alcohol or ethanol.

Further, described radiating fin is square sheet, adopts and is made of aluminum or copper, and is provided with multiplely, is parallel distribution, is all enclosed within on described straight heat conductive tube.

Compared with prior art, the high capacity of heat radiation certainly bearing support tool described in the utility model has the following advantages:

1, the utility model is provided with the straight heat conductive tube of at least one and annular heat conductive tube conducting outward and at least one is enclosed within the radiating fin on straight heat conductive tube at bearing base, when bearing support work, produces amount of heat, and heat is transmitted on radiating fin by heat conductive tube.This radiating fin is square sheet, adopts and is made of aluminum or copper, and is provided with multiplely, is parallel distribution, and heat diffusion area is large, and radiating efficiency is high.The utility model adopts heat pipe heat radiation and the metallic material mode combining of dispelling the heat, heat conduction and heat dispersion improve greatly, effectively reduce the temperature of bearing support, prevent that bearing support from causing the appearance of segmentation crack because of excess Temperature, the situations such as the product of having avoided producing occurs being out of shape, pulls, sticking to mould, have extended working life of bearing support.

2, axle is inserted axis hole by the utility model, adds oil in oilhole, and oil flows into the position at shaft hole inner wall and steel ball place by oil duct, high lubricating effect, bearing operation noise is low, can effectively improve due to the bearing failure that wearing and tearing cause at a high speed, the working life of greatly having improved the bearing of bearing support.

3, the raceway between bearing outer ring of the present utility model and bearing inner race is two roller path structures, in the situation that not strengthening bearing boundary dimension, significantly promote the load performance of bearing, the load capacity that significantly improves bearing support in the situation that space and weight can not significantly increase, has improved the competitiveness of product in market.

Brief description of the drawings

Fig. 1 is the right TV structure schematic diagram of the utility model from heat radiation high capacity bearing support.

Fig. 2 is the main TV structure schematic diagram of the utility model from heat radiation high capacity bearing support.

Fig. 3 is the perspective view of the utility model from heat radiation high capacity bearing support.

In figure: 1 bearing outer ring, 2 bearing inner races, 3 steel balls, 4 axis holes, 5 oilholes, 6 oil ducts, 7 self-lubricating sliding layers, 8 pedestal fixed holes, 9 bearing bases, 10 annular heat conductive tubes, 11 straight heat conductive tubes, 12 radiating fin, 13 condensed fluids.

Embodiment

Further describe structure of the present utility model below in conjunction with accompanying drawing 1, Fig. 2 and Fig. 3.

A kind of from heat radiation high capacity bearing support, comprise bearing base 9 and be positioned at symmetrically arranged two the pedestal fixed holes 8 in bearing base 9 two ends, in described bearing base 9, be provided with an annular heat conductive tube 10 around bearing bore, outside described bearing base 9, be also provided with the straight heat conductive tube 11 of at least one and described annular heat conductive tube 10 conductings and at least one is enclosed within the radiating fin 12 on described straight heat conductive tube 11; Described annular heat conductive tube 10 and straight heat conductive tube 11 are the airtight copper pipe of inner hollow, and this copper pipe inside is reticular structure, and condensed fluid 13 is housed.

The utility model is provided with the straight heat conductive tube 11 of at least one and 10 conductings of annular heat conductive tube outside bearing base 9 and at least one is enclosed within the radiating fin 12 on straight heat conductive tube 11, when bearing support work, produces amount of heat, and heat is transmitted on radiating fin 12 by heat conductive tube.This radiating fin 12 is square sheet, adopts and is made of aluminum or copper, and is provided with multiplely, is parallel distribution, and heat diffusion area is large, and radiating efficiency is high.The utility model adopts heat pipe heat radiation and the metallic material mode combining of dispelling the heat, heat conduction and heat dispersion improve greatly, effectively reduce the temperature of bearing support, prevent that bearing support from causing the appearance of segmentation crack because of excess Temperature, the situations such as the product of having avoided producing occurs being out of shape, pulls, sticking to mould, have extended working life of bearing support.

Described condensed fluid 13 is water, methyl alcohol or ethanol.Described radiating fin 12 is square sheet, adopts and is made of aluminum or copper, and is provided with multiplely, is parallel distribution, is all enclosed within on described straight heat conductive tube 11.Annular heat conductive tube 10 of the present utility model and straight heat conductive tube 11 are cylindrical body, cone or other shape, and it is netted structure that annular heat conductive tube 10 and straight heat conductive tube 11 all adopt metallic material to make surface airtight, middle.The surperficial seal structure of annular heat conductive tube 10 and straight heat conductive tube 11 and middle reticular structure can be one can be also split, in the mesh structural porous structure of centre, be equipped with after condensed fluid 13, after being heated, condensed fluid 13 can in time heat be delivered to the far-end of straight heat conductive tube 11, and passed fast by multiple radiating fin 12.

In described bearing bore, be provided with the bearing for support rotating axle, this bearing comprises bearing outer ring 1, bearing inner race 2 and steel ball 3, and described steel ball 3 is between bearing outer ring 1 and the raceway of bearing inner race 2; Bearing outer ring 1 and the bearing bore interference fit of described bearing.In bearing inner race 2, have axis hole 4, the upper end of described axis hole 4 has multiple oilholes 5, and the oil duct 6 that described oilhole 5 forms runs through the inwall of connecting shaft hole 4 and the outer side wall of bearing inner race 2.Axle is inserted to axis hole 4, in oilhole 5, add lubricant oil, lubricant oil flows into the position at axis hole 4 inwalls and steel ball 3 places by oil duct 6, high lubricating effect, bearing operation noise is low, can effectively improve due to the bearing failure that wearing and tearing cause at a high speed, the working life of greatly having improved the bearing of bearing support.

In the inner hole surface of described bearing outer ring 1, be evenly provided with one deck self-lubricating sliding layer 7; The thickness of described self-lubricating sliding layer 7 is 0.03-0.1mm.Described in the utility model simple from heat radiation high capacity bearing block structure, application is convenient, taking polyimide as main self-lubricating sliding layer friction factor is low, hardness is high, lubricating ability is far away higher than traditional steel axle, its material itself has the characteristic of Wear-resistant, high-temperature resistant, can effectively improve due to high temperature and the bearing failure of wearing and tearing and causing at a high speed by increasing this self-lubricating sliding layer, the working life of greatly having improved bearing.

Described bearing base 9 is one-body molded; On described bearing base 9, be provided with a bearing bore, in described bearing bore, be provided with the bearing for support rotating axle.The utility model, because bearing base 9 is one-body molded, has reduced wall thickness, and the obvious weight that reduced that compared with prior art monoblock forms, realizes the minimizing of the fuel consume in vehicle internal combustion engine, reaches the object of energy-conserving and environment-protective.

Raceway between described bearing outer ring 1 and bearing inner race 2 is the 30-50mm of being separated by between two roller path structures and two raceways.Raceway between bearing outer ring 1 of the present utility model and bearing inner race 2 is two roller path structures, in the situation that not strengthening bearing boundary dimension, significantly promote the load performance of bearing, the load capacity that significantly improves bearing support in the situation that space and weight can not significantly increase, has improved the competitiveness of product in market.

Claims

1. the high capacity bearing support that certainly dispels the heat, comprise bearing base (9) and be positioned at bearing base (9) symmetrically arranged two the pedestal fixed holes in two ends (8), on described bearing base (9), be provided with a bearing bore, in described bearing bore, be provided with the bearing for support rotating axle, this bearing comprises bearing outer ring (1), bearing inner race (2) and steel ball (3), and described steel ball (3) is positioned between bearing outer ring (1) and the raceway of bearing inner race (2); It is characterized in that:

The bearing outer ring (1) of described bearing and bearing bore interference fit; In described bearing inner race (2), have axis hole (4), the upper end of described axis hole (4) has multiple oilholes (5), and the oil duct (6) that described oilhole (5) forms runs through the inwall of connecting shaft hole (4) and the outer side wall of bearing inner race (2);

Raceway between described bearing outer ring (1) and bearing inner race (2) is the 30-50mm of being separated by between two roller path structures and two raceways;

In described bearing base (9), be provided with an annular heat conductive tube (10) around bearing bore, outside described bearing base (9), be also provided with the straight heat conductive tube (11) of at least one and described annular heat conductive tube (10) conducting and at least one is enclosed within the radiating fin (12) on described straight heat conductive tube (11); Described annular heat conductive tube (10) and straight heat conductive tube (11) are the airtight copper pipe of inner hollow, and this copper pipe inside is reticular structure, and condensed fluid (13) is housed.

2. one according to claim 1, from heat radiation high capacity bearing support, is characterized in that: in the inner hole surface of described bearing outer ring (1), be evenly provided with one deck self-lubricating sliding layer (7); The thickness of described self-lubricating sliding layer (7) is 0.03-0.1mm; This self-lubricating sliding layer (7) is bonded in the inner hole surface of described bearing outer ring (1) by pyrolytic coating.

3. one according to claim 1 and 2 is from heat radiation high capacity bearing support, it is characterized in that: between described bearing outer ring (1) and bearing inner race (2), be also provided with two ring-type oil sealings, these two ring-type oil sealings lay respectively at described raceway both sides.

4. one according to claim 1, from heat radiation high capacity bearing support, is characterized in that: described bearing base (9) is one-body molded.

5. one according to claim 1, from heat radiation high capacity bearing support, is characterized in that: described condensed fluid (13) is water, methyl alcohol or ethanol.

6. according to the heat radiation high capacity bearing support certainly of the one described in claim 4 or 5, it is characterized in that: described radiating fin (12) is square sheet, adopts and is made of aluminum or copper, and is provided with multiple, be parallel distribution, be all enclosed within on described straight heat conductive tube (11).