CN201461834U - Oil reservoir subassembly of air bag shock absorber - Google Patents
Oil reservoir subassembly of air bag shock absorber Download PDFInfo
- Publication number
- CN201461834U CN201461834U CN2009200812526U CN200920081252U CN201461834U CN 201461834 U CN201461834 U CN 201461834U CN 2009200812526 U CN2009200812526 U CN 2009200812526U CN 200920081252 U CN200920081252 U CN 200920081252U CN 201461834 U CN201461834 U CN 201461834U
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- Prior art keywords
- surge drum
- oil reservoir
- shock absorber
- air
- assembly
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Abstract
The utility model discloses an oil reservoir subassembly of an air bag shock absorber, which comprises an oil reservoir and a bottom cover, and the oil reservoir subassembly is characterized in that the oil reservoir and the bottom cover are integrally extruded to form an integrated part. The oil reservoir subassembly has the advantages of high overall tensile strength and little fluctuation, the integrally extruded oil reservoir subassembly does not need to be machined, all the dimensional precision and surface roughness are fulfilled by an extrusion die, consequently, the production process is simplified, moreover, air tightness is good, and the integrally extruded oil reservoir subassembly only needs to be washed, and does not contain any impurities.
Description
Technical field
The utility model relates to vehicle shock absorber, particularly the air-bag shock absorber surge drum sub-assembly on the vibration damper, i.e. surge drum and bottom assembly.
Background technique
The most frequently used vibration damper of cab of heavy truck is machinery (spring) vibration damper, along with the raising that cab comfort is required, vibration damper---the air-bag shock absorber that development makes new advances, rapidly attenuation vibration when the rough road surface of vehicle encounters improves travelling comfort, smoothness, operability of operator cabin or the like.What at present a large amount of air-bag shock absorbers all adopted surge drum and bottom is welding manner---be that usually said seam welds or the C02 gas shielded arc welding, as shown in Figure 1.Wherein, surge drum 1 plays store oil, supporting suspension, seal action in air-bag shock absorber, and bottom 2 plays the supporting clutch release slave cylinder, plays store oil, supporting suspension with surge drum welding back in air-bag shock absorber.
Unblocked in stretching, extension and compression movement process in order to guarantee air-bag shock absorber, inner each component of air-bag shock absorber just must have very high turbidity test requirement, in surge drum sub-assembly production process, scale that the welding back produces and spatter are difficult to remove clean, in case welding impurity enters air-bag shock absorber piston end surface valve line and valve block and foot valve seat end face valve line and valve block can not tightly be fitted, will cause the recovery damping force and the compression damping power of air-bag shock absorber to descend until product failure, this has just caused a lot of unnecessary loss for factory, improved product cost, influence quality of product, the product reputation is had a strong impact on.
The model utility content
The purpose of this utility model is: at the deficiencies in the prior art, provide a kind of air-bag shock absorber surge drum sub-assembly.
The technical solution of the utility model is:
A kind of air-bag shock absorber surge drum sub-assembly comprises surge drum and bottom, it is characterized in that: surge drum and bottom are the one-piece element of a monolithic extruded moulding.
Supplementary technology scheme of the present utility model is as follows:
Preferably, the opening end of surge drum has closing in, and the length of closing in is more than or equal to 1/4 of air-bag shock absorber surge drum sub-assembly total length.
The beneficial effects of the utility model are:
1, subtract the designing requirement of oscillator according to air bag, the tensile strength after the welding of the surge drum sub-assembly of welding is not less than 30000N, and the working control of production process is 35000N～45000N, and it is bigger to fluctuate; The whole tensile strength of monolithic extruded surge drum sub-assembly is 68000N～70000N, and intensity is high and fluctuate less.
2, subtract the designing requirement of oscillator according to air bag, the external diameter and the air bag of surge drum sub-assembly seal; Must carry out machining (operations such as surge drum closing in, car weld seam, car endoporus, mill external diameter), monolithic extruded surge drum sub-assembly needn't carry out machining, and all dimensional accuracies and surface roughness are finished by extrusion die, simplify production process.
3, subtract the designing requirement of oscillator according to air bag, oil leakage phenomenon can not appear in the surge drum sub-assembly; 100% the tightness of the surge drum sub-assembly of welding must carrying through to the end after welding detects; Monolithic extruded surge drum sub-assembly needn't tightness detect.
4, subtract the usage requirement of oscillator according to air bag, do not allow any impurity in the vibration damper; The surge drum sub-assembly of welding must be scrubbed and hydro-peening after welding, simultaneously can not be with all contaminant removals; Monolithic extruded surge drum sub-assembly only need carry out hydro-peening, and there is not any impurity in surge drum.
5, the dimensional accuracy and the roughness of seal outer diameter are shown great attention in the surge drum designing requirement of basis; The surge drum sub-assembly of welding is shorter at the closing in position of surge drum, and surge drum needs the external diameter of grinding longer, and external diameter surge drum after grinding, in turnover, be easy to generate and collide with, make air bag subtract oscillator and in use leak gas, cause that air bag subtracts the Accident due to quality of oscillator, causes harmful effect; Monolithic extruded surge drum sub-assembly can arbitrarily extend the closing in position of surge drum, effectively shorten the face of being sealed and matched, and the surface hardness after the extruding is higher, the product turnover is few, difficult generation is collided with, reduce reject rate in process of production, eliminate air bag and subtract oscillator hidden danger of quality in use.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Shown in Figure 1 is air-bag shock absorber surge drum sub-assembly of the prior art.
Shown in Figure 2 is the embodiment of the utility model air-bag shock absorber surge drum sub-assembly.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Specific embodiment of the utility model, as shown in Figure 1, a kind of air-bag shock absorber surge drum sub-assembly comprises surge drum 4 and bottom 5, surge drum 4 and bottom 5 are the one-piece element of a monolithic extruded moulding, and whole air-bag shock absorber surge drum sub-assembly can be formed by the round steel extruding.
In the above-described embodiments, in order to reduce the amount of grinding of seal outer diameter, can be provided with at the opening end of surge drum 4 and close up 3, and with closing in 3 positions of surge drum 4 lengthening, effectively shorten the face of being sealed and matched, the length of closing in 3 is more than or equal to 1/4 of air-bag shock absorber surge drum sub-assembly total length, and the surface hardness of extruding rear gasbag vibration damper surge drum sub-assembly is higher, the product turnover is few, difficult generation is collided with, reduce reject rate in process of production, eliminate air bag and subtract oscillator hidden danger of quality in use.
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. an air-bag shock absorber surge drum sub-assembly comprises surge drum and bottom, it is characterized in that: surge drum and bottom are the one-piece element of a monolithic extruded moulding.
2. air-bag shock absorber surge drum sub-assembly according to claim 1 is characterized in that the opening end of surge drum has closing in, and the length of closing in is more than or equal to 1/4 of air-bag shock absorber surge drum sub-assembly total length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200812526U CN201461834U (en) | 2009-05-31 | 2009-05-31 | Oil reservoir subassembly of air bag shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200812526U CN201461834U (en) | 2009-05-31 | 2009-05-31 | Oil reservoir subassembly of air bag shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461834U true CN201461834U (en) | 2010-05-12 |
Family
ID=42389187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200812526U Expired - Fee Related CN201461834U (en) | 2009-05-31 | 2009-05-31 | Oil reservoir subassembly of air bag shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738804A (en) * | 2021-09-08 | 2021-12-03 | 宁波鸿裕工业有限公司 | Shock absorber and liquid storage cylinder forming process thereof |
-
2009
- 2009-05-31 CN CN2009200812526U patent/CN201461834U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738804A (en) * | 2021-09-08 | 2021-12-03 | 宁波鸿裕工业有限公司 | Shock absorber and liquid storage cylinder forming process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120531 |