CN101344132A - Processing method for improving anti-torsion ability of shockproof lining - Google Patents
Processing method for improving anti-torsion ability of shockproof lining Download PDFInfo
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- CN101344132A CN101344132A CNA2008101957039A CN200810195703A CN101344132A CN 101344132 A CN101344132 A CN 101344132A CN A2008101957039 A CNA2008101957039 A CN A2008101957039A CN 200810195703 A CN200810195703 A CN 200810195703A CN 101344132 A CN101344132 A CN 101344132A
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Abstract
The invention relates to a processing method which can improve the torsion resistance capacity of an anti-earthquake bush, aiming at the anti-earthquake bush in which an inner metal sheath is connected with an outer metal sheath by a rubber layer; after the rubber vulcanization molding process, radial compression processing is carried out to the excircle diameter of the outer metal sheath; the radial compression amount of the excircle diameter of the outer metal sheath is calculated by the following formula: Delta D is equal to (D1-D2) multiplied by K; in the formula, Delta D represents the radial compression amount of the excircle diameter of the outer metal sheath; D1 represents the inner-circle diameter of the outer metal sheath before the radial compression; D2 represents the excircle diameter of the inner metal sheath; K represents the rubber compression ratio, with the value ranging from 3 to 10 percent. The processing method improves the torsion resistance capacity of the existing anti-earthquake bush, and solves the problem that when in use, the anti-earthquake bush loses anti-earthquake effect and has short service life as the internal tissue of the rubber is destroyed due to the radial torsion force and the axial deviation angle tensile force.
Description
Technical field
The present invention relates to a kind of manufacture method of shockproof lining, relate in particular to a kind of processing method that improves anti-torsion ability of shockproof lining, the shockproof lining after this method is handled is specially adapted to automobile, motorcycle, machinery etc. and has in the anti-shock system that radially reverses.
Background technique
Shockproof lining (claiming rubber bushing again) at present commonly used, as shown in Figure 1, by outer metallic sheath (claim not only shell) 1, interior metallic sheath (but also claiming inner casing) 3, and in being arranged between metallic sheath 3 and the outer metallic sheath 1 and rubber layer 2 compositions that their elasticity is connected.Because this lining has better elastic and damping isolation property, therefore be widely used in the shock mitigation system of vehicle and engineering mechanical device.The making method of above-mentioned shockproof lining is normally made outer metallic sheath 1 and interior metallic sheath 3 earlier, then outer metallic sheath 1 and interior metallic sheath 3 are positioned in the mould, make and form a cavity between outer metallic sheath 1 and the interior metallic sheath 3, then utilize injection forming method that rubber is injected in the cavity, after rubber curing forming and cooling, form rubber layer 2, rubber layer 2 fuses with outer metallic sheath 1 and interior metallic sheath 3, the last externally external diameter surface of metallic sheath 1 carries out fine finishing, is finished product.
Although above-mentioned shockproof lining has used for many years, in use the phenomenon that gets loose drawing crack appears or in the joint that usually occurs between rubber and the inside and outside shell owing to the effect that is subjected to warping force, makes whole shockproof lining lose shockproof effect.Trace it to its cause and mainly be: be positioned in the mould owing to inside and outside metallic sheath in the mill, and rubber because radial contraction easily produces radially internal stress, causes rubber layer to be in tension state between inside and outside metallic sheath in sulfidization molding and cooling procedure.When shockproof lining under user mode, particularly be in to have and radially reverse or when axially the drift angle degree is greater than ± 10 ° workplace, as Fig. 2, shown in Figure 3, it mainly is subjected to pressure F radially, but in, outer metallic sheath also often is subjected to radially warping force S or the axially effect of drift angle power Q, make reversing of shockproof lining generation several angle, in be connected this moment, a part of rubber body between the outer metallic sheath is subjected to radial pull, another part rubber body is subjected to radial pressure, and the part that is subjected to the radial pull effect again with rubber curing forming in the internal stress that produces superpose, the interior tissue of this part rubber body is destroyed, thereby cause rubber with in, the phenomenon that gets loose drawing crack appears or in the joint between the shell, makes product shortening in working life.
Summary of the invention
The invention provides a kind of processing method that improves anti-torsion ability of shockproof lining, its purpose mainly is to solve existing shockproof lining radially to reverse or when axially use the workplace of drift angle degree having, warping force and axial drift angle degree pulling force make that the rubber interior tissue is destroyed because of being subjected to radially, cause that drawing crack appears in the joint between rubber and the inside and outside metallic sheath, the problem of the phenomenon that gets loose, make shockproof lining lose shockproof effect, the problem that working life is short.
In order to achieve the above object, the technical solution used in the present invention is: a kind of processing method that improves anti-torsion ability of shockproof lining, at the shockproof lining of metallic sheath in connecting by rubber layer with outer metallic sheath, after rubber curing forming technology, externally the outside diameter of metallic sheath carries out the radial compression processing, and the radial compression amount of described outer metallic sheath outside diameter is calculated as follows:
ΔD＝(D
1-D
2)×K
In the formula: Δ D represents the radial compression amount of outer metallic sheath outside diameter;
D
1The interior circular diameter of the outer metallic sheath before the expression radial compression;
D
2The outside diameter of metallic sheath in the expression;
K represents the rubber compressibility, and span is 3% to 10%.
Related content in the technique scheme is explained as follows:
1, in the such scheme, the outside diameter of described external metallic sheath carries out radial compression and adopts following method:
Design a constrictor and a compression ring as the radial compression mould, wherein, compression ring has an endoporus, and the diameter of this endoporus equals the outside diameter of the outer metallic sheath before the radial compression and the difference of radial compression amount, and the end that is pressed into of endoporus is provided with the tapered guide face; The effect end of constrictor is designed to a gland, the outside diameter of this gland is less than the diameter of bore of compression ring, and interior circular diameter greater than the outer metallic sheath before the radial compression, the interior circular diameter of gland is greater than the outside diameter of interior metallic sheath, and less than the interior circular diameter of the outer metallic sheath before the radial compression, the axial length of gland is greater than interior metallic sheath and outer metallic sheath length poor of end face at one end; During operation, shockproof lining is positioned at the end that is pressed into of compression ring, and on the position at compression ring endoporus center, utilize constrictor to act on outer metallic sheath end face with the gland of effect end, force shockproof lining to pass the endoporus of compression ring by static pressure method, produce radial compression with the outside diameter of this external metallic sheath.
2, in the such scheme, after the described rubber curing forming technology, externally the cylindrical of metallic sheath is roughly ground, the radial compression processing is carried out in the corase grind back externally outside diameter of metallic sheath, do the out of roughness and the degree of finish that can guarantee outer metallic sheath cylindrical like this, make when externally the metallic sheath outside diameter carries out radial compression, do not damage compression mould.In addition, externally the outside diameter of metallic sheath carries out the radial compression processing, also can carry out after whole shockproof lining completes.
3, in the such scheme, the thickness of rubber layer is relevant behind the value of described rubber compressibility K and the ejection formation, and when the thickness of rubber layer behind the ejection formation was big, its compressibility value was just bigger accordingly, behind ejection formation the thickness of rubber layer hour, its compressibility value is just less accordingly.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1, owing to carrying out radial compression, handles the outside diameter that adopts the inventive method to the outer metallic sheath of shockproof lining, can effectively eliminate the radially internal stress that rubber layer produces in the sulfidization molding process, avoided this vibration proof type lining in the course of the work, owing to rubber layer is subjected to drawing crack that the effect of radial pull produces, phenomenon such as come off, improve the anti-torsion ability of shockproof lining, prolonged the working life of shockproof lining.
2, owing to adopt the inventive method that the outside diameter of the outer metallic sheath of shockproof lining is carried out radial compression to handle, make that the antitorque commentaries on classics performance of shockproof lining after handling is good, can use is having radially windup-degree ± 12 ° and the big workplace of axial drift angle degree vibrations.
3, owing to carrying out radial compression, handles the outside diameter that adopts the inventive method to the outer metallic sheath of shockproof lining, the anti-torsion ability of the shockproof lining after the processing strengthens, endurance quality from the past rubber layer stretch 1,000,000 times will drawing crack, come off, bringing up to present rubber layer stretches and does not also produce drawing crack, obscission, the working life of effectively having improved product after 1,500,000 times.
Description of drawings
Accompanying drawing 1 is the shockproof lining structural representation;
Accompanying drawing 2 is the working state schematic representation of shockproof lining under radially reversing;
Accompanying drawing 3 is the working state schematic representation of shockproof lining under axial drift angle;
Accompanying drawing 4 is the inventive method implementing procedure schematic representation;
Accompanying drawing 5 is finished the schematic representation of external metallic sheath outside diameter radial compression step for the inventive method adopts compression mould;
The constrictor structural representation of accompanying drawing 6 for using in the invention process method.
In the above accompanying drawing: 1, outer metallic sheath; 2, rubber layer; 3, interior metallic sheath; 4, constrictor; 5, compression ring; 6, fixed base; 7, endoporus; 8, be pressed into end; 9, tapered guide face; 10, gland.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment:
A kind of processing method that improves anti-torsion ability of shockproof lining, as Fig. 1, shown in Figure 4, at the shockproof lining of metallic sheath 3 in being connected by rubber layer 2 with outer metallic sheath 1, externally metallic sheath 1 and interior metallic sheath 3 carry out surface sand-blasting, chemicals treatment respectively earlier; And outer metallic sheath 1 after will handling and interior metallic sheath 3 positioning and fixing, in the cavity that metallic sheath 3 and outer metallic sheath 1 were formed in rubber injection was gone into, after rubber curing forming and cooling, form rubber layer 2, outer metallic sheath 1 and interior metallic sheath 3 are fused with rubber layer 2; After rubber curing forming technology, externally the cylindrical of metallic sheath 1 is roughly ground, the radial compression processing is carried out in the corase grind back externally outside diameter of metallic sheath 1, do the out of roughness and the degree of finish that can guarantee outer metallic sheath 1 cylindrical like this, make when externally metallic sheath 1 outside diameter carries out radial compression, do not damage compression mould.
Externally the outside diameter of metallic sheath 1 carries out the radial compression processing, and the radial compression amount of described outer metallic sheath 1 outside diameter is calculated as follows:
ΔD＝(D1-D2)×K
In the formula: Δ D represents the radial compression amount of outer metallic sheath 1 outside diameter;
D1 represents the interior circular diameter of the outer metallic sheath 1 before the radial compression;
The outside diameter of metallic sheath 3 in D2 represents;
K represents the rubber compressibility, and span is 3% to 10%.
Wherein, the thickness of rubber layer is relevant behind the value of described rubber compressibility K and the ejection formation, and when the thickness of rubber layer behind the ejection formation was big, its compressibility value was just bigger accordingly, behind ejection formation the thickness of rubber layer hour, its compressibility value is just less accordingly.
The outside diameter of described external metallic sheath 1 carries out radial compression and adopts following method: as shown in Figure 5, design a constrictor 4 and a compression ring 5 as the radial compression mould, this compression mould is installed on the air pressure board (not shown) by fixed base 6, wherein, compression ring 5 has an endoporus 7, the diameter of this endoporus 7 equals the outside diameter of the outer metallic sheath 1 before the radial compression and the difference of radial compression amount, and the end 8 that is pressed into of endoporus 7 is provided with tapered guide face 9; As shown in Figure 6, the effect end of constrictor 4 is designed to a gland 10, the outside diameter of this gland 10 is less than the diameter of bore of compression ring 5, and interior circular diameter greater than the outer metallic sheath 1 before the radial compression, the interior circular diameter of gland 10 is greater than the outside diameter of interior metallic sheath 3, and less than the interior circular diameter of the outer metallic sheath 1 before the radial compression, the axial length of gland 10 is greater than interior metallic sheath 3 and outer metallic sheath 1 length poor of end face at one end; During operation, shockproof lining is positioned at being pressed into of compression ring 5 holds 8, and on the position at compression ring 5 endoporus 7 centers, utilize constrictor 4 to act on outer metallic sheath 1 end face with the gland 10 of effect end, constrictor 4 forces under gas pressure and promotes shockproof lining moment endoporus 7 by compression ring 5 and fall, outside diameter with this external metallic sheath 1 produces radial compression, and then compressed rubber layer 2 in the outer metallic sheath 1, eliminate rubber layer 2 in sulfuration to reach, the radially internal stress that produces in the cooling procedure, avoided this vibration proof type lining in the course of the work, the drawing crack that produced by the effect of radial pull owing to rubber layer 2, phenomenon such as come off, improved the anti-torsion ability of shockproof lining, endurance quality from the past rubber layer stretch 1,000,000 times will drawing crack, come off, bringing up to present rubber layer stretches and does not also produce drawing crack after 1,500,000 times, obscission, the working life of effectively having improved product.
Employing the inventive method is carried out the radial compression processing to the outside diameter of the outer metallic sheath of shockproof lining, can effectively eliminate the radially internal stress that rubber layer produces in the sulfidization molding process, avoided this vibration proof type lining in the course of the work, owing to rubber layer is subjected to drawing crack that the effect of radial pull produces, phenomenon such as come off, the antitorque commentaries on classics performance of shockproof lining after the processing is good, can use is having windup-degree ± 12 radially ° and the big workplace of axial drift angle degree vibrations, improve the anti-torsion ability of shockproof lining, prolonged the working life of shockproof lining.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1, a kind of processing method that improves anti-torsion ability of shockproof lining, it is characterized in that: at the shockproof lining of metallic sheath (3) in connecting by rubber layer (2) with outer metallic sheath (1), after rubber curing forming technology, externally the outside diameter of metallic sheath (1) carries out the radial compression processing, and the radial compression amount of described outer metallic sheath (1) outside diameter is calculated as follows:
ΔD＝(D
1-D
2)×K
In the formula: Δ D represents the radial compression amount of outer metallic sheath (1) outside diameter;
D
1The interior circular diameter of the outer metallic sheath (1) before the expression radial compression;
D
2The outside diameter of metallic sheath (3) in the expression;
K represents the rubber compressibility, and span is 3% to 10%.
2, processing method according to claim 1 is characterized in that: the outside diameter of described external metallic sheath (1) carries out radial compression and adopts following method:
Design a constrictor (4) and a compression ring (5) as the radial compression mould, wherein, compression ring (5) has an endoporus (7), the diameter of this endoporus (7) equals the outside diameter of the outer metallic sheath (1) before the radial compression and the difference of radial compression amount, and the end (8) that is pressed into of endoporus (7) is provided with tapered guide face (9); The effect end of constrictor (4) is designed to a gland (10), the outside diameter of this gland (10) is less than endoporus (7) diameter of compression ring (5), and interior circular diameter greater than the outer metallic sheath (1) before the radial compression, the interior circular diameter of gland (10) is greater than the outside diameter of interior metallic sheath (3), and less than the interior circular diameter of the outer metallic sheath (1) before the radial compression, the axial length of gland (10) is greater than interior metallic sheath (3) and outer metallic sheath (1) length poor of end face at one end;
During operation, be pressed into end (8) with what shockproof lining was positioned at compression ring (5), and on the position at compression ring (5) endoporus (7) center, utilize constrictor (4) to act on outer metallic sheath (1) end face with the gland (10) of effect end, force shockproof lining to pass the endoporus (7) of compression ring (5) by static pressure method, produce radial compression with the outside diameter of this external metallic sheath (1).
3, processing method according to claim 1 is characterized in that: after the described rubber curing forming technology, externally the cylindrical of metallic sheath (1) is roughly ground, and the radial compression processing is carried out in the corase grind back externally outside diameter of metallic sheath (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101957039A CN101344132B (en) | 2008-08-22 | 2008-08-22 | Processing method for improving anti-torsion ability of shockproof lining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101957039A CN101344132B (en) | 2008-08-22 | 2008-08-22 | Processing method for improving anti-torsion ability of shockproof lining |
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| Publication Number | Publication Date |
|---|---|
| CN101344132A true CN101344132A (en) | 2009-01-14 |
| CN101344132B CN101344132B (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804425A (en) * | 2010-03-26 | 2010-08-18 | 保定惠阳航空螺旋桨制造厂 | Rubber bushing compacting mould |
-
2008
- 2008-08-22 CN CN2008101957039A patent/CN101344132B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804425A (en) * | 2010-03-26 | 2010-08-18 | 保定惠阳航空螺旋桨制造厂 | Rubber bushing compacting mould |
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| Publication number | Publication date |
|---|---|
| CN101344132B (en) | 2010-07-14 |
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