CN100493827C - Technique for assembling subassembly of bottom valve of condensation damper valve in hydraulic damper - Google Patents
Technique for assembling subassembly of bottom valve of condensation damper valve in hydraulic damper Download PDFInfo
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- CN100493827C CN100493827C CNB200710049570XA CN200710049570A CN100493827C CN 100493827 C CN100493827 C CN 100493827C CN B200710049570X A CNB200710049570X A CN B200710049570XA CN 200710049570 A CN200710049570 A CN 200710049570A CN 100493827 C CN100493827 C CN 100493827C
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- bottom valve
- bar
- damper
- foot
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Abstract
The invention discloses an assembly technique for hydraulic pressure vibration reduction compressed damper valve base valve assembly. It includes the following steps: machining and installing a special combined die plate; putting the down part of base valve bar in vertical shaft flute of die plate, covering compensation valve spring, and compensation valve plate onto base valve bar; covering the bottom valve base on bottom valve bar; covering vibration reduction valve plate and baffle on bottom valve, taking rotating riveting to the upper part of bottom valve to make it compress the vibration reduction valve plate and baffle. The invention could produce high compressed damping force, high yield, and ensure consistency and lasting quality of the products.
Description
Technical field
The present invention relates to a kind of assembly technology that is used for sub assembly of bottom valve of condensation damper valve in hydraulic damper.
Background technology
In automobile double cylinder type hydraulic shock absorber, the function of compression damper valves sub assembly of bottom valve is the fluid that produces compression damping power and compensation work cylinder cavity of resorption, vibration to vehicle body plays cushioning effect, be the important component part of finishing the shock absorber function, the stable of compression damping power is shock absorber to be finished vibration-damping function play crucial effects.The assembly technology of existing sub assembly of bottom valve as shown in Figure 1, may further comprise the steps:
1) will be provided with the bottom valve bar 11 that two steps and upper end be drilled with blind hole places on the workbench 18, its miner diameter end upwards, pocketed springs 12, compensation valve block 13, foot valve seat 14, damper valve plate 15 and baffle plate 16 successively on bottom valve bar 11, wherein foot valve seat 14 and bottom valve bar 11 are matched in clearance, and spring 12 is affixed on the first step end face of bottom valve bar 11;
2) blind hole of bottom valve bar 11 upper ends is carried out towards riveting with tapered punch by hydraulic press, make its upper end dilatancy become cone 17 and press down baffle plate 16, make foot valve seat 14 be adjacent to the second step end face of bottom valve bar 11, and fixedly damper valve plate 15 and baffle plate 16.
The shortcoming of this assembly technology is: 1. because foot valve seat 14 adopts matched in clearance with bottom valve bar 11, after riveting, there is the gap in foot valve seat 14 and bottom valve bar 11 adjacent peripheries, cause oil liquid leakage during use, reduced compression damping power, and owing to the individual difference of gap width, reduced the uniformity of damping force, can't guarantee the uniformity of product damping property;
2. because the distortion instability of bottom valve bar 11 during towards riveting, easily cause the instability of compression damping power value, influence the uniformity of product damping property; And owing to after riveting, only depend on cone 17 to fix baffle plate 16 and damper valve plate 15, cone 17 contacts for line with baffle plate 16, contact area is little, yielding in the long-term back of using, damper valve plate 15 and baffle plate 16 are easily loosening, damper valve plate 15 can reduce with the tight ness rating that foot valve seat 14 is fitted, and causes the decay of damping force value, and endurance quality reduces;
3. because the frock that positions of unmatchful each part, bottom valve bar and foot valve seat are matched in clearance, become flexible between each part, add the elastic force effect of upper spring, towards riveting the time, cause the part parts to misplace easily and scrap, and qualification rate is lower.
Summary of the invention
The objective of the invention is to above-mentioned deficiency, a kind of assembly technology that can produce the sub assembly of bottom valve of condensation damper valve in hydraulic damper of big compression damping power, high qualification rate, the uniformity that guarantees the product damping property and endurance quality is provided at prior art.
For achieving the above object, the assembly technology of sub assembly of bottom valve of condensation damper valve in hydraulic damper of the present invention may further comprise the steps:
1) processing, assembling a kind of dedicated set box-like die, this die comprises column, guide, stop collar and back-moving spring, and column is provided with the groove that the first step with bottom valve bar lower end is complementary, and guide is provided with the endoporus that is complementary with the recuperation valve spring;
2) lower end that will be provided with the bottom valve bar of two steps places the groove of column, its miner diameter end upwards, suit recuperation valve spring, compensation valve block successively on the bottom valve bar, the recuperation valve spring is affixed on the first step end face of bottom valve bar and is arranged in the endoporus of guide;
3) foot valve seat is set on the bottom valve bar, the partial operation of the bottom valve bar shaft part that is complementary with foot valve seat become with the foot valve seat endoporus be interference fit, press down the second step end face that foot valve seat is adjacent to the bottom valve bar by press device, the realization foot valve seat is fixedlyed connected with the bottom valve bar;
4) again damper valve plate and baffle plate are set on the bottom valve bar successively, riveting are revolved in the upper end of bottom valve bar by riveter, make its distortion after become step-like die, compress baffle plate, make damper valve plate be adjacent to the end face of foot valve seat;
As a further improvement on the present invention, the processing of the magnitude of interference of the part of bottom valve bar shaft part and foot valve seat endoporus is arranged between the 0.01-0.08mm;
The present invention is owing to use the box-like die of dedicated set, and each part all is positioned, and can not scrap because of the part dislocation causes when revolving riveting, has improved qualification rate; To make interference fit between the part of bottom valve bar shaft part and the foot valve seat endoporus, prevented after the assembling that fluid from leaking between bottom valve bar and foot valve seat, the passage that fluid is flowed through all is controlled in the through hole of the foot valve seat that designs in advance, increase compression damping power, effectively guaranteed the uniformity of product damping property again; By revolving riveting with bottom valve bar rotary pressure deformation, baffle plate is that face contacts with die, and thrust is bigger, it is tightr that valve block and foot valve seat are fitted, can obviously improve compression damping power value, reduce the quantity of damper valve plate, save part, can satisfy of the requirement of multiple model shock absorber to compression damping power value, and can improve the uniformity of damping force value, make the performance of shock absorber more stable, and after long-term the use, the decay of damping force value is very little, has guaranteed the endurance quality of shock absorber.
Description of drawings
Fig. 1 is for adopting the structural representation of the sub assembly of bottom valve of condensation damper valve in hydraulic damper that has the assembly technology acquisition now.
Structural representation when Fig. 2 is foot valve seat and the assembling of bottom valve bar.
Fig. 3 is the structural representation of the sub assembly of bottom valve of condensation damper valve in hydraulic damper of employing the present invention acquisition.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
By shown in Figure 2, the assembly technology of this sub assembly of bottom valve of condensation damper valve in hydraulic damper may further comprise the steps:
1) processing, assembling a kind of dedicated set box-like die, this die comprises column 9, guide 8, stop collar 10 and back-moving spring, and column 9 is provided with the groove that the first step with bottom valve bar 1 lower end is complementary, and guide 8 is provided with the endoporus that is complementary with recuperation valve spring 2;
2) lower end that will be provided with the bottom valve bar 1 of two steps places the groove of column 9, its miner diameter end upwards, on bottom valve bar 1 successively suit recuperation valve spring 2, the compensation valve block 3, recuperation valve spring 2 is affixed on the first step end face of bottom valve bar 1 and is arranged in the endoporus of guide 8;
3) foot valve seat 4 is set on the bottom valve bar 1, the partial operation of bottom valve bar 1 shaft part that is complementary with foot valve seat 4 become with foot valve seat 4 endoporus be interference fit, be arranged between the 0.01-0.08mm by the processing magnitude of interference, foot valve seat 4 is a metallic sintered products often, quality is more crisp, if the magnitude of interference is too big, just very easily causes embrittlement, press down the second step end face that foot valve seat 4 is adjacent to bottom valve bar 1 by hydraulic press, realization foot valve seat 4 is fixedlyed connected with bottom valve bar 1;
4) by shown in Figure 3, again damper valve plate 5 and baffle plate 6 are set on the bottom valve bar successively, by riveter riveting is revolved in the upper end of bottom valve bar 1, make its distortion after become step-like die 7, compress baffle plate 6, make damper valve plate 5 be adjacent to the end face of foot valve seat 4;
The present invention is owing to use the box-like die of dedicated set, and each part all is positioned, and can not scrap because of the part dislocation causes when revolving riveting, has improved qualification rate; Made interference fit between the endoporus with the part of bottom valve bar 1 shaft part and foot valve seat 4, prevented after the assembling that fluid is from leaking between bottom valve bar 1 and the foot valve seat 4, the passage that fluid is flowed through all is controlled in the through hole of the foot valve seat 4 that designs in advance, increased compression damping power, stop leakage phenomenon, effectively guaranteed the uniformity of product damping property again; By revolving the upper end rotary pressure deformation of riveting with bottom valve bar 1, baffle plate 6 contacts for face with die 7, thrust is bigger, it is tightr that damper valve plate 5 and foot valve seat 4 are fitted, and can obviously improve compression damping power value, the damping force value that five damper valve plates of former needs just can reach, now only needing three just can reach, can reduce the quantity of damper valve plate, save part, and can satisfy of the requirement of multiple model shock absorber compression damping power value; And rotary pressure deformation is more stable, can improve the uniformity of damping force value, makes the performance of shock absorber more stable, and after long-term the use, damper valve plate 5 and baffle plate 6 are difficult for loosening, and the decay of damping force value is very little, has guaranteed the endurance quality of shock absorber.
Claims (2)
1. the assembly technology of a sub assembly of bottom valve of condensation damper valve in hydraulic damper is characterized in that may further comprise the steps:
1) processing, assembling a kind of dedicated set box-like die, this die comprises column, guide, stop collar and back-moving spring, and column is provided with the groove that the first step with bottom valve bar lower end is complementary, and guide is provided with the endoporus that is complementary with the recuperation valve spring;
2) lower end that will be provided with the bottom valve bar of two steps places the groove of column, its miner diameter end upwards, suit recuperation valve spring, compensation valve block successively on the bottom valve bar, the recuperation valve spring is affixed on the first step end face of bottom valve bar and is arranged in the endoporus of guide;
3) foot valve seat is set on the bottom valve bar, the partial operation of the bottom valve bar shaft part that is complementary with foot valve seat become with the foot valve seat endoporus be interference fit, press down the second step end face that foot valve seat is adjacent to the bottom valve bar by press device, the realization foot valve seat is fixedlyed connected with the bottom valve bar;
4) again damper valve plate and baffle plate are set on the bottom valve bar successively, riveting are revolved in the upper end of bottom valve bar by riveter, make its distortion after become step-like die, compress baffle plate, make damper valve plate be adjacent to the end face of foot valve seat.
2. the assembly technology of sub assembly of bottom valve of condensation damper valve in hydraulic damper as claimed in claim 1 is characterized in that the part of bottom valve bar shaft part and the magnitude of interference processing of foot valve seat endoporus are arranged between the 0.01-0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710049570XA CN100493827C (en) | 2007-07-20 | 2007-07-20 | Technique for assembling subassembly of bottom valve of condensation damper valve in hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710049570XA CN100493827C (en) | 2007-07-20 | 2007-07-20 | Technique for assembling subassembly of bottom valve of condensation damper valve in hydraulic damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101092018A CN101092018A (en) | 2007-12-26 |
| CN100493827C true CN100493827C (en) | 2009-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710049570XA Expired - Fee Related CN100493827C (en) | 2007-07-20 | 2007-07-20 | Technique for assembling subassembly of bottom valve of condensation damper valve in hydraulic damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100493827C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368974B (en) * | 2014-10-17 | 2016-08-24 | 无锡市宏源弹性器材有限公司 | The numerical control formation equipment of non-standard stripe shape steel-wire isolator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889787A (en) * | 1973-10-05 | 1975-06-17 | Gen Motors Corp | Hydraulic shock absorber unit |
| EP0230042A1 (en) * | 1985-12-26 | 1987-07-29 | Toyota Jidosha Kabushiki Kaisha | Twin-tube type shock absorber with a base valve portion structure coupled by caulking |
| CN2625645Y (en) * | 2003-06-18 | 2004-07-14 | 万向钱潮股份有限公司 | Shock absorber compression valve |
-
2007
- 2007-07-20 CN CNB200710049570XA patent/CN100493827C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889787A (en) * | 1973-10-05 | 1975-06-17 | Gen Motors Corp | Hydraulic shock absorber unit |
| EP0230042A1 (en) * | 1985-12-26 | 1987-07-29 | Toyota Jidosha Kabushiki Kaisha | Twin-tube type shock absorber with a base valve portion structure coupled by caulking |
| CN2625645Y (en) * | 2003-06-18 | 2004-07-14 | 万向钱潮股份有限公司 | Shock absorber compression valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101092018A (en) | 2007-12-26 |
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| C06 | Publication | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20120720 |