CN103511066A - Novel anti-falling fixing device for deflation valve shaft sleeve - Google Patents
Novel anti-falling fixing device for deflation valve shaft sleeve Download PDFInfo
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- CN103511066A CN103511066A CN201310439094.8A CN201310439094A CN103511066A CN 103511066 A CN103511066 A CN 103511066A CN 201310439094 A CN201310439094 A CN 201310439094A CN 103511066 A CN103511066 A CN 103511066A
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- fixing device
- novel anti
- volute
- shaft sleeve
- axle sleeve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention discloses a novel anti-falling fixing device for a deflation valve shaft sleeve. The novel anti-falling fixing device comprises a valve deck shaft and a volute, wherein the valve deck shaft is assembled on the volute through a thrusting shaft sleeve. A shaft shoulder is arranged on the thrusting shaft sleeve in the axial direction, and a check ring is arranged on the portion, on one side of the shaft shoulder, of the thrusting shaft sleeve in a sleeved mode. According to the mode, the shaft shoulder is utilized for matching, and the check ring is used for preventing the shaft sleeve from sliding from the volute under the condition of high temperature. The novel anti-falling fixing device has the advantages that the failure risk of falling of the shaft sleeve is avoided when being used under the condition of high temperature, the heat effect on the shaft sleeve from the volute is reduced by appropriately reducing interference fit between the thrusting shaft sleeve and the volute, and therefore the probability that the valve deck shaft is stuck inside the thrusting shaft sleeve is greatly reduced.
Description
Technical field
The present invention relates to a kind of Novel anti-drop bleed valve axle sleeve fixing device.
Background technique
The working principle of turbosupercharger is by engine exhaust, promotes turbine acting, makes and the coaxial gas compressor work being connected of turbine, offers engine high pressure, high-density air, thereby improves Engine torque, power, reduces discharge.In order to improve the low-speed characteristic of turbosupercharger, people have invented exhaust gas bypass formula turbosupercharger, and it is by under high speed conditions, a part of waste gas being passed through to control valve bypass, to reach the function that improves low-speed characteristic.
The design of traditional axle sleeve, generally adopts the mode of direct interference fit, and axle sleeve is directly pressed into volute, and because axle sleeve is different from the material of volute, under high-temperature condition, magnitude of interference is too large, easily causes axle sleeve to be out of shape, and then valve gap axle is stuck in axle sleeve cannot rotate; Magnitude of interference is too little, easily causes axle sleeve to come off from volute.
Therefore,, for traditional design, there is the multiple axle sleeve structure that overcomes driven Design defect.
Example 1: axle sleeve is pressed into after volute, at a sidewise hole of the vertical processing of its fitting surface, and packs a resilient key into.Although this method also can solve the axle sleeve problem that comes off, but assembled rear reprocessing aperture, not only to drop into processing tool, also easily cause processing iron filings to enter volute, cause volute turbidity test defective, if the volute that contains iron filings finally appears on client's vehicle, be easy to cause the trouble of exhaust system such as turbine is wounded.
Example 2: process the lip of very thin (approximately 0.7 ~ 1mm) at the axial fitting surface place of volute and axle sleeve, after axle sleeve is pressed into, the lip by external force extrusion process on volute, makes its distortion clamp axle sleeve, forms 1 or 2 depressions.But this method not only can not prevent axle sleeve and slip into volute the inside, and Assembling Production process need drops into new frock, increased cost of production.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of Novel anti-drop bleed valve axle sleeve fixing device, can prevent axle sleeve landing from volute under high-temperature condition, reduces valve gap axle and in thrust bush, is blocked main probability.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of Novel anti-drop bleed valve axle sleeve fixing device is provided, comprise: valve gap axle and volute, described valve gap axle is assemblied on spiral case by a thrust bush, described thrust bush be axially arranged with one section of shaft shoulder, on the thrust bush of the described shaft shoulder one side, be arranged with back-up ring.
In a preferred embodiment of the present invention, it between thrust bush and spiral case, is interference fit.
In a preferred embodiment of the present invention, described back-up ring is circlip.
In a preferred embodiment of the present invention, described back-up ring is the Steel Cable Baffle Ring that is provided with opening.
In a preferred embodiment of the present invention, the described shaft shoulder is located on the fitting surface of thrust bush and spiral case.
In a preferred embodiment of the present invention, described back-up ring is located between thrust bush and spiral case.
In a preferred embodiment of the present invention, described back-up ring is located at the shaft shoulder one side that thrust bush is easy to come off.
The invention has the beneficial effects as follows: Novel anti-drop bleed valve axle sleeve fixing device of the present invention utilizes one section of shaft shoulder to coordinate and a back-up ring prevents that axle sleeve from, under high-temperature condition, sliding out from volute; The failure risk of having avoided axle sleeve to come off when its feature is high temperature application, and can reduce the heat affecting of volute to axle sleeve by the interference fit suitably reducing between thrust bush and volute, valve gap axle jammed probability in thrust bush is reduced greatly.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the structural representation of Novel anti-drop bleed valve axle sleeve fixing device of the present invention one preferred embodiment;
Fig. 2 is the partial enlarged drawing at A place in the bleed valve of Novel anti-drop shown in Fig. 1 axle sleeve fixing device;
Fig. 3 is the side view at A place in the bleed valve of Novel anti-drop shown in Fig. 1 axle sleeve fixing device;
In accompanying drawing, the mark of each parts is as follows: 1, valve gap axle, 2, volute, 3, thrust bush, 4, the shaft shoulder, 5, back-up ring.
Embodiment
Below the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Embodiment based in the present invention, those of ordinary skills, not making all other embodiments that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 3, the embodiment of the present invention comprises:
A bleed valve axle sleeve fixing device, comprising: valve gap axle 1 and volute 2, described valve gap axle 1 is assemblied on spiral case by a thrust bush 3, is less interference fit between thrust bush 3 and spiral case.
During installation, be after first thrust bush 3 and spiral case having been assembled, then valve gap axle 1 is assemblied in thrust bush 3.This structure can solve under high-temperature condition, and thrust bush 3 coordinates too slack and undisciplined with volute 2, and the problem that is caused valve gap axle 1 to be blocked by volute 2 extrusion-deformations.
Described thrust bush 3 be axially arranged with one section of shaft shoulder 4, the described shaft shoulder 4 is located on the fitting surface of thrust bush 3 and spiral case.
On the thrust bush 3 of the described shaft shoulder 4 one sides, be arranged with back-up ring 5.The present invention is preferably located at back-up ring 5 shaft shoulder 4 one sides that thrust bush 3 is easy to come off.
Described back-up ring 5 is circlip, and described back-up ring 5 is located between thrust bush 3 and spiral case.By the shaft shoulder 4, coordinate and circlip, solved the problem that thrust bush 3 comes off from volute 2.
Described back-up ring 5, for being provided with the Steel Cable Baffle Ring of opening, directly pushes during installation, and buying is all extremely low with assembly cost.
Novel anti-drop bleed valve axle sleeve fixing device of the present invention utilizes one section of shaft shoulder 4 to coordinate and a back-up ring 5 prevents that axle sleeve from, under high-temperature condition, sliding out from volute 2; The failure risk of having avoided axle sleeve to come off when its feature is high temperature application, and can by suitably reducing interference fit between thrust bush 3 and volute 2, reduce the heat affecting of 2 pairs of axle sleeves of volute, valve gap axle 1 is reduced greatly in the interior jammed probability of thrust bush 3.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. a Novel anti-drop bleed valve axle sleeve fixing device, it is characterized in that, comprising: valve gap axle and volute, described valve gap axle is assemblied on spiral case by a thrust bush, described thrust bush be axially arranged with one section of shaft shoulder, on the thrust bush of the described shaft shoulder one side, be arranged with back-up ring.
2. Novel anti-drop bleed valve axle sleeve fixing device according to claim 1, is characterized in that, is interference fit between thrust bush and spiral case.
3. Novel anti-drop bleed valve axle sleeve fixing device according to claim 1, is characterized in that, described back-up ring is circlip.
4. Novel anti-drop bleed valve axle sleeve fixing device according to claim 1, is characterized in that, described back-up ring is the Steel Cable Baffle Ring that is provided with opening.
5. Novel anti-drop bleed valve axle sleeve fixing device according to claim 1, is characterized in that, the described shaft shoulder is located on the fitting surface of thrust bush and spiral case.
6. Novel anti-drop bleed valve axle sleeve fixing device according to claim 1, is characterized in that, described back-up ring is located between thrust bush and spiral case.
7. Novel anti-drop bleed valve axle sleeve fixing device according to claim 1, is characterized in that, described back-up ring is located at the shaft shoulder one side that thrust bush is easy to come off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310439094.8A CN103511066A (en) | 2013-09-25 | 2013-09-25 | Novel anti-falling fixing device for deflation valve shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310439094.8A CN103511066A (en) | 2013-09-25 | 2013-09-25 | Novel anti-falling fixing device for deflation valve shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511066A true CN103511066A (en) | 2014-01-15 |
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ID=49894397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310439094.8A Pending CN103511066A (en) | 2013-09-25 | 2013-09-25 | Novel anti-falling fixing device for deflation valve shaft sleeve |
Country Status (1)
| Country | Link |
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| CN (1) | CN103511066A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524516A (en) * | 2016-06-15 | 2017-12-29 | 通用汽车环球科技运作有限责任公司 | Waste gate closing position location feature part |
-
2013
- 2013-09-25 CN CN201310439094.8A patent/CN103511066A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524516A (en) * | 2016-06-15 | 2017-12-29 | 通用汽车环球科技运作有限责任公司 | Waste gate closing position location feature part |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |
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| WD01 | Invention patent application deemed withdrawn after publication |