CN102587765A - Powder metallurgy oil-retaining bearing hinge of heavy door - Google Patents
Powder metallurgy oil-retaining bearing hinge of heavy door Download PDFInfo
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- CN102587765A CN102587765A CN2012100736270A CN201210073627A CN102587765A CN 102587765 A CN102587765 A CN 102587765A CN 2012100736270 A CN2012100736270 A CN 2012100736270A CN 201210073627 A CN201210073627 A CN 201210073627A CN 102587765 A CN102587765 A CN 102587765A
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- resistant sleeve
- door
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Abstract
The invention discloses a powder metallurgy oil-retaining bearing hinge of a heavy door. The hinge comprises a fixed mounting block and a door plate mounting block; the fixed mounting block and the door plate mounting block are hinged with each other via a rotary central shaft; wear-proof casings are respectively arranged on the fixed mounting block and the door plate mounting block; a rotary friction surface of the fixed mounting block is contacted with a rotary friction surface of the door plate mounting block via the wear-proof casings; the friction between the fixed mounting block and the rotary central shaft can be converted into the friction between the wear-proof casing and the rotary central shaft by the wear-proof casings, and meanwhile, the friction between the fixed mounting block and the door plate mounting block can be converted into the friction between the wear-proof casings by the wear-proof casings, so that the hinge is protected. Meanwhile, the wear-proof casings disclosed by the invention are selected from T-shaped powder metallurgy copper sleeves, and small spongy through holes with oil are distributed on the surfaces of the T-shaped powder metallurgy copper sleeves, so that the hinge is better protected and prevented from being damaged when the hinge works.
Description
Technical field
The present invention relates to the powder metallurgy oil-impregnated bearing hinge of a kind of hinge, particularly a kind of heavy door.
Background technology
As everyone knows; The hinge of domestic heavy door generally is made up of movable mounting blocks, fixed installation piece that axis of rotation and direct socket are installed on the axis of rotation, and above-mentioned hinge reaches after 200,000 times in number of revolutions, and the abrasion condition of hinge is very severe; Had a strong impact on user's normal use; Simultaneously, the hinge through examination criteria that exports to European Union is 300,000 times, and domestic general hinge and above-mentioned standard also have a certain distance.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of simple in structure, anti abrasive heavy door hinge.
The present invention for the technical scheme that solves its technical problem and adopt is:
A kind of powder metallurgy oil-impregnated bearing hinge of heavy door; Comprise fixed installation piece, door-plate mounting blocks; Said fixed installation piece and door-plate mounting blocks are hinged through rotary middle spindle; Said fixed installation piece and door-plate mounting blocks are provided with wear-resistant sleeve, and the pivoting friction face of said fixed installation piece and door-plate mounting blocks contacts through wear-resistant sleeve, and above-mentioned wear-resistant sleeve can be converted into the friction between wear-resistant sleeve and the rotary middle spindle with the friction between fixed installation piece and the rotary middle spindle; Wear-resistant sleeve can also be converted into the friction between the wear-resistant sleeve with the friction between door-plate mounting blocks and the fixed installation piece simultaneously, thereby plays the effect of protection hinge.
Be distributed with spongy tiny through hole on the said wear-resistant sleeve, oil-containing in the described spongy tiny through hole, above-mentioned wear-resistant sleeve is under the hinge duty; Be stored in that oil in the tiny through hole is squeezed because of bearing inner wall and friction is heated overflows, because axle causes the friction between the metal with the small uneven meeting of bearing surface, the generation frictional heat; Cause the temperature of bearing to rise, thereby oil viscosity is reduced, flow easily; Simultaneously, the back produces and expands because lubrication oil is heated, and the degrees of expansion of oil is bigger than the degrees of expansion of bearing matrix; Therefore cause lubrication oil from hole, to ooze out, form one deck oil film on the axis of rotation surface and play lubrication, in the rotary course axis of rotation after oil film forms only with the oil film friction; Thereby the frictional resistance when significantly reducing hinge work effectively prevents the wearing and tearing of hinge, when hinge is not worked; The oil that overflows can permeate again because of the operating principle of pore automatically to be got back in the spongy tiny through hole, reduces volatilization.
Described wear-resistant sleeve is the powder metallurgy copper sheathing of " T " shape; Above-mentioned wear-resistant sleeve is elected the powder metallurgy copper sheathing of " T " shape as; Can effectively prevent wear-resistant sleeve and door-plate mounting blocks or with the friction that produces relative rotation of fixed installation piece; Thereby avoid wear-resistant sleeve to receive door-plate mounting blocks or fixed installation piece to the friction of wear-resistant sleeve, wear-resistant sleeve is elected the powder metallurgy copper sheathing as simultaneously, and its anti-wear performance is better.
The arranged outside of said wear-resistant sleeve has annular iron cover; The gap that has 0.4-0.7mm between the annular iron cover on the described wear-resistant sleeve that is in contact with one another, above-mentioned annular iron cover can effectively prevent the oil-containing wear-resistant sleeve when doing the surface spraying, and oil plant overflows from the wear-resistant sleeve surface and influences spraying effect; And; The iron cover can also be protected oil plant from tiny through hole, not overflow so easily or volatilize, and leaves the gap of 0.4-0.7mm between two simultaneously above-mentioned iron covers, neither influences spraying work; Can not be in contact with one another friction again, guarantee anti-wear effect.
The invention has the beneficial effects as follows: because the friction that relatively rotates that the present invention will fixedly mount between piece, door-plate mounting blocks and the rotary middle spindle is converted into relatively rotating friction or the friction that relatively rotates between door-plate mounting blocks and the fixed installation piece is converted into the friction that relatively rotates between the wear-resistant sleeve between wear-resistant sleeve and the rotary middle spindle; Thereby effectively prevent wear of hinge; And because wear-resistant sleeve of the present invention selects for use and be " T " shape powder metallurgy copper sheathing, and the surface distributed of powder metallurgy copper sheathing has spongy tiny through hole; Oil-containing in the through hole; Therefore, under the hinge duty, the oil in the through hole is squeezed and friction is heated overflows; Play lubrication; Greatly reduced the friction between wear-resistant sleeve and rotary middle spindle or wear-resistant sleeve and the wear-resistant sleeve, after the heavy door of test proof hinge load 120KG rotated 500,000 times, hinge is not wearing and tearing basically; Behind hinge power cut-off state, the oil that overflows infiltration is automatically got back in the spongy tiny through hole, reduces volatilization; Simultaneously, the arranged outside of wear-resistant sleeve has annular iron cover, when above-mentioned iron cover can prevent effectively that the powder metallurgy copper sheathing from doing the surface spraying; Oil plant is the effect of flood spraying effect from the copper sheathing surface, in addition, is arranged on the gap of leaving 0.4-0.7mm between two iron covers on two wear-resistant sleeves that are in contact with one another; Guarantee that two iron covers neither can be in contact with one another friction, can not influence the spraying of copper sheathing again.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Fig. 1 is a surface structure sketch map of the present invention;
Fig. 2 is the cutaway view Amplified image at A-A place among Fig. 1;
Fig. 3 is a lateral view of the present invention;
Fig. 4 is an exploded perspective view of the present invention.
The specific embodiment
Referring to figs. 1 through Fig. 4, a kind of powder metallurgy oil-impregnated bearing hinge of heavy door comprises fixed installation piece 1, door-plate mounting blocks 3; Fixed installation piece 1 is provided with long sleeve; Door-plate mounting blocks 3 is provided with pipe spreader 32, and rotary middle spindle 2 is installed on long sleeve and pipe spreader 32 inside, makes fixed installation piece 1 hinged with door-plate mounting blocks 3; The opposite face of said fixed installation piece 1 and door-plate mounting blocks 3 is provided with powder metallurgy oil-containing wear-resistant sleeve 4, and wear-resistant sleeve 4 peripheries are arranged with annular iron cover 5; Be provided with spacing cylinder fixed block 20 at rotary middle spindle 2 two ends, said cylinder fixed block 20 is fixedly connected with pipe spreader 32.Because the friction that relatively rotates that the present invention will fixedly mount between piece 1, door-plate mounting blocks 3 and the rotary middle spindle 2 is converted into relatively rotating friction or the friction that relatively rotates between door-plate mounting blocks 3 and the fixed installation piece 1 is converted into the friction that relatively rotates between the wear-resistant sleeve 4 between wear-resistant sleeve 4 and the rotary middle spindle 2; Thereby effectively prevent wear of hinge; And because wear-resistant sleeve 4 of the present invention selects for use and be " T " shape powder metallurgy copper sheathing, and the surface distributed of powder metallurgy copper sheathing has spongy tiny through hole; Oil-containing in the through hole; Therefore, under the hinge duty, the oil in the through hole is squeezed and friction is heated overflows; Play lubrication; Greatly reduced the friction between wear-resistant sleeve and rotary middle spindle or wear-resistant sleeve and the wear-resistant sleeve, after the heavy door of test proof hinge load 120KG rotated 500,000 times, hinge is not wearing and tearing basically; Behind hinge power cut-off state, the oil that overflows infiltration is automatically got back in the spongy tiny through hole, reduces volatilization; Simultaneously; The arranged outside of wear-resistant sleeve 4 has annular iron cover 5, and when above-mentioned iron cover 5 can prevent effectively that the powder metallurgy copper sheathing from doing the surface spraying, oil plant is the effect of flood spraying effect from the copper sheathing surface; In addition; Be arranged on the gap of leaving 0.4-0.7mm between two iron covers 5 on two wear-resistant sleeves that are in contact with one another 4, guarantee that two iron covers neither can be in contact with one another friction, can not influence the spraying of copper sheathing again.
Structure and the process of a kind of embodiment of the present invention are following:
At first, process rotary middle spindle 2, and process two diameters cylinder fixed block 20 more bigger with iron and steel again than rotation central axiss 2 with iron and steel.
Further, with Sn 7-11%, copper-clad graphite 4.0-5.0%, graphite 2-4%, MOS
22-6%, the composition that zinc stearate 0.5-1.0% and Cu and other inevitable impurity are formed is handled through mixing, low temperature diffusion, press forming, sintering, shaping, immersion oil and is processed wear-resistant sleeve 4, uses copper-clad graphite 4.0-5.0%, graphite 2-4%, MOS
2Powder, makes alloy be distributed in and is more prone under the low-temperature condition combine with the hardening agent of Sn as the Cu-Sn matrix as kollag; Through the mixing low temp DIFFUSION TREATMENT, the alloy more even distribution, zinc stearate decomposes because of sintering simultaneously; Make to be spongy tiny through hole in the sintered body, the porosity communication rate is more than 95%, and each composition that disperses forms die combinations under the sintering temperature of 730-750 degree; Make sintered body have very high intensity, reach more than the 200Mpa, after sintered body is handled through vacuum oil immersion; The spongiform tiny through hole on its surface absorbs enough greases and is stored at the inside; When wear-resistant sleeve 4 rotates, discharge, reduce rotation friction and rotate noise, strengthened abrasion resistance as lubrication oil; When stopping operating, grease can be inhaled go back to wear-resistant sleeve 4 the insides, can not cause waste; Prolong the service time of grease simultaneously; Make surpass 3W hour the application life of whole bearing, wear-resistant sleeve 4 preferably is processed into " T " shape in compression moulding, and the wear-resistant sleeve 4 of " T " shape is fixed on door-plate mounting blocks 3 or the fixed installation piece 1; Can effectively prevent wear-resistant sleeve 4 and door-plate mounting blocks 3 or with the friction that produces relative rotation of fixed installation piece 1; Certainly wear-resistant sleeve 4 can also be processed into other shapes, when above-mentioned wear-resistant sleeve 4 is used with rotary middle spindle 2, is matched in clearance between wear-resistant sleeve 4 and the rotary middle spindle 2.
Further again; Process fixed installation piece 1 with steel; Fixed installation has a long sleeve that can be socketed in rotary middle spindle 2 appearances on the piece 1, and the through hole internal diameter of above-mentioned long sleeve is than the somewhat larger in diameter of wear-resistant sleeve 4 bodies, thereby makes wear-resistant sleeve 4 can rabbet in the through hole that is installed in long sleeve.
Further; Process door-plate mounting blocks 3 with iron and steel; There are two pipe spreaders 32 that cooperate installation with rotary middle spindle 2 top and the bottom of described door-plate mounting blocks 3; And the through hole internal diameter of two pipe spreaders 32 is than the somewhat larger in diameter of wear-resistant sleeve 4 bodies, thereby makes wear-resistant sleeve 4 can rabbet in the through hole that is installed in pipe spreader 32.
Further; Process width with iron charge and be about 2mm, and can socket be installed in the annular iron cover 5 of " T " shape wear-resistant sleeve 4 heads, above-mentioned annular iron overlaps 5 sockets when being installed in " T " shape wear-resistant sleeve 4; When the head that can guarantee two " T " shape wear-resistant sleeves 4 is in contact with one another; Two annular iron overlap the gap that has 0.5mm between 5, and 2mm is elected in the breadth-first of annular here iron cover 5 as, and it is also passable to elect other width certainly as.
Further again; Four annular iron covers 5 respectively socket be installed in the head of four " T " shape wear-resistant sleeves 4; Wherein two wear-resistant sleeves 4 are rabbeted the long sleeve two ends that are installed in fixed installation piece 1 respectively then; At last, respectively two other wear-resistant sleeve 4 interlockings are installed in the inner of 3 two pipe spreaders 32 of door-plate mounting blocks.
Further; Imbed the long sleeve of fixed installation piece 1 between two pipe spreaders 32 of door-plate mounting blocks 3; And make long sleeve coaxial with the center line of two pipe spreaders 32; Then, be installed in rotary middle spindle 2 interlocking in two pipe spreaders 32 of long sleeve and door-plate mounting blocks 3 of fixed installation piece 1, at last; Rabbet the outer end that is installed in two pipe spreaders 32 to two cylinder fixed blocks 20 respectively; Cylinder fixed block 20 is provided with the hole slot that is used to lock, and corresponding hole slot position is provided with screw on the pipe spreader 32, adopts to pass hex(agonal)screw that through hole is connected to hole slot and cylinder fixed block 20 is locked with pipe spreader 32 be connected; Two above-mentioned cylinder fixed blocks 20 can prevent that rotary middle spindle 2 from coming off from long sleeve and two pipe spreaders 32 of door-plate mounting blocks 3 of fixed installation piece 1, and two cylinder fixed blocks 20 and be clipped in wherein between rotary middle spindle 2 between have certain clearance.
The above is merely preferential embodiment of the present invention, as long as realize that with basic identical means the technical scheme of the object of the invention all belongs within protection scope of the present invention.
Claims (4)
1. the powder metallurgy oil-impregnated bearing hinge of a heavy door; Comprise fixed installation piece (1), door-plate mounting blocks (3); Said fixed installation piece (1) and door-plate mounting blocks (3) are hinged through rotary middle spindle (2); It is characterized in that: said fixed installation piece (1) and door-plate mounting blocks (3) are provided with wear-resistant sleeve (4), and the pivoting friction face of said fixed installation piece (1) and door-plate mounting blocks (3) contacts through wear-resistant sleeve (4).
2. the powder metallurgy oil-impregnated bearing hinge of a kind of heavy door according to claim 1 is characterized in that: be distributed with spongy tiny through hole on the said wear-resistant sleeve (4), oil-containing in the described spongy tiny through hole.
3. the powder metallurgy oil-impregnated bearing hinge of a kind of heavy door according to claim 1, it is characterized in that: described wear-resistant sleeve (4) is the powder metallurgy copper sheathing of " T " shape.
4. the powder metallurgy oil-impregnated bearing hinge of a kind of heavy door according to claim 1; It is characterized in that: the arranged outside of said wear-resistant sleeve (4) has annular iron cover (5), has the gap of 0.4-0.7mm between the annular iron cover (5) on the described wear-resistant sleeve that is in contact with one another (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100736270A CN102587765A (en) | 2012-03-19 | 2012-03-19 | Powder metallurgy oil-retaining bearing hinge of heavy door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100736270A CN102587765A (en) | 2012-03-19 | 2012-03-19 | Powder metallurgy oil-retaining bearing hinge of heavy door |
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| CN102587765A true CN102587765A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100736270A Pending CN102587765A (en) | 2012-03-19 | 2012-03-19 | Powder metallurgy oil-retaining bearing hinge of heavy door |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041080A (en) * | 2015-06-04 | 2015-11-11 | 广东顶固集创家居股份有限公司 | Hinge |
| CN105649445A (en) * | 2016-03-19 | 2016-06-08 | 泰州市亚泰电力机车配件有限公司 | Wearproof heavy hinge structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097959A (en) * | 1977-03-31 | 1978-07-04 | Lawrence Brothers, Inc. | Load supporting hinge structure |
| US5611114A (en) * | 1995-06-05 | 1997-03-18 | Wood, Jr.; Vincent | High strength, dual action hinge |
| CN2782867Y (en) * | 2005-04-19 | 2006-05-24 | 宋淑芬 | Improved structure for heavy hinge |
| KR20060116144A (en) * | 2006-02-07 | 2006-11-14 | 남중선 | Hinge |
| CN201953205U (en) * | 2010-12-22 | 2011-08-31 | 奉化市金辉五金制品有限公司 | Hinge improved structure |
| CN202081753U (en) * | 2011-05-20 | 2011-12-21 | 安徽文鼎机械有限公司 | Vehicle door hinge with limiting function |
| CN202544599U (en) * | 2012-03-19 | 2012-11-21 | 江门市蓬江区杜阮尹氏五金制品厂 | Powder metallurgy oil-impregnated bearing hinge of heavy door |
-
2012
- 2012-03-19 CN CN2012100736270A patent/CN102587765A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097959A (en) * | 1977-03-31 | 1978-07-04 | Lawrence Brothers, Inc. | Load supporting hinge structure |
| US5611114A (en) * | 1995-06-05 | 1997-03-18 | Wood, Jr.; Vincent | High strength, dual action hinge |
| CN2782867Y (en) * | 2005-04-19 | 2006-05-24 | 宋淑芬 | Improved structure for heavy hinge |
| KR20060116144A (en) * | 2006-02-07 | 2006-11-14 | 남중선 | Hinge |
| CN201953205U (en) * | 2010-12-22 | 2011-08-31 | 奉化市金辉五金制品有限公司 | Hinge improved structure |
| CN202081753U (en) * | 2011-05-20 | 2011-12-21 | 安徽文鼎机械有限公司 | Vehicle door hinge with limiting function |
| CN202544599U (en) * | 2012-03-19 | 2012-11-21 | 江门市蓬江区杜阮尹氏五金制品厂 | Powder metallurgy oil-impregnated bearing hinge of heavy door |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041080A (en) * | 2015-06-04 | 2015-11-11 | 广东顶固集创家居股份有限公司 | Hinge |
| CN105649445A (en) * | 2016-03-19 | 2016-06-08 | 泰州市亚泰电力机车配件有限公司 | Wearproof heavy hinge structure |
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Application publication date: 20120718 |