CN1982717A - Convenient single-screw compressor - Google Patents
Convenient single-screw compressor Download PDFInfo
- Publication number
- CN1982717A CN1982717A CN 200510111598 CN200510111598A CN1982717A CN 1982717 A CN1982717 A CN 1982717A CN 200510111598 CN200510111598 CN 200510111598 CN 200510111598 A CN200510111598 A CN 200510111598A CN 1982717 A CN1982717 A CN 1982717A
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- China
- Prior art keywords
- bearing
- screw compressor
- convenient single
- outer ring
- bearing block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A novel simple single-screw compressor comprises a casing, a mainshaft, a bearing, a back bearing seat and an adjusting mechanism. The back bearing seat adopts an enclosed structure. The bearing inner race is fixed via a shaft shoulder and a plain round nut and the bearing outer ring is located by an internal hole step and a bearing outer ring holddown. An adjusting shim is disposed between the casing and the back bearing seat.
Description
Technical field
The present invention relates to single-screw air compressor, particularly a kind of have a housing, main shaft, rear bearing block, bearing and adjust the single screw compressor of structure.
Background technique
As everyone knows, single-screw air compressor requires the strictness, particularly worm screw very and the center line of two star-wheels for the positioning tolerance of three axis, in theory should be tally in every detail, and its error maximum is filled the scope of being permitted also only between 0～0.05mm; And prior art constructions is difficult in fast and in the time it is adjusted to this value range and so on, often need the adjustment of repeated multiple times, the irrationality of this internal structure is in the exploration running in stage always in the single-screw air compressor field, domestic people in the industry also fails and will reach perfect condition through repeatedly improving.As can be seen from Figure 1, this kind structure is by locating bearing and worm shaft fully, its adjustment mode is to adopt two adjusting nuts that the center line of worm screw and star-wheel is carried out uncertain adjustment, require relatively strictlyer comparatively speaking for practitioner's quality and experience, and be difficult within the short time it is reached within the ideal value scope.Simultaneously, also brought very big trouble, be difficult to guarantee the high-axiality requirement of air compressor rotating spindle two bearings to assembly technology.Simultaneously, what this kind structure adopted is tapered roller series bearing, and its axial clearance is difficult to by artificial control, so require the precision of manufacturing very high, the plain bearing of numerous domestic bearing manufacturer production can't meet the demands at all.In the updating of current technical field, also there are many enterprises or individual that bearing is changed into: angular contact bearing even external imported bearing, but all because of its structure and adjustment mode basic change does not take place, so, fail to obtain desirable effect all the time, on the adjustment mode, do not find suitable solution after all exactly.
Summary of the invention
The purpose of this invention is to provide a kind of convenient single-screw compressor, what solve mainly that the adjustment structure of existing product mainly adopts is tapered roller series bearing, and its axial clearance is difficult to the technical problem by artificial control.
For solving the problems of the technologies described above, the present invention is achieved in that
A kind of convenient single-screw compressor, it comprises housing, main shaft, rear bearing block, bearing is adjusted structure, it is characterized in that: rear bearing block adopts enclosed construction, two angular contact ball bearings are placed in the bearing bore, by the shaft shoulder and plain round nut bearing inner race is fixed, bearing outer ring is then by endoporus step and bearing outer ring pressing plate location; Adjusting pad places between housing and the rear bearing block.
Described convenient single-screw compressor is characterized in that: adjust pad and thickness thereof and divide two kinds of serial size: 5mm, 4mm, 3mm, 2mm and 2.5mm, 3.5mm, 4.5mm.
Described convenient single-screw compressor is characterized in that: be provided with lock washer between this plain round nut and the bearing.
By technique scheme, the technique effect that the present invention has is:
1, use the manufacturing efficiency of the single-screw air compressor of structure of the present invention to be enhanced about more than once, reduce labor intensity half;
2, the present invention has improved bearing and has got working life about 50%, has reduced maintenance cost;
3,, a kind of new development opportunity is provided for the single-screw air compressor industry, further with industry operational standardization, socialization by design improvement of the present invention.
Description of drawings
Fig. 1 is that prior art is adjusted structural representation.
Fig. 2 adjusts structural representation in the product of the present invention.
Fig. 3 is a rear bearing block sectional view in the product of the present invention.
Among the figure:
1, housing 7, bearing outer ring pressing plate
2, rear bearing block 8, adjustment pad
3, angular contact ball bearing 9, adjustment nut
4, plain round nut 10, tapered roller bearing
5, main shaft 11, retaining ring for shaft shoulder
6, round nut lock washer 12, stifle
Embodiment
See also Fig. 2 and 3, it is the structural representation of convenient single-screw compressor of the present invention.As shown in the figure: this convenient single-screw compressor comprises housing 1, main shaft 5, rear bearing block 2, bearing 3, adjust structure, wherein, adjust that structure mainly contains main shaft 5, two angular contact ball bearings 2 are in aggregates with rear bearing block 2 assemblings with it by plain round nut 4, round nut lock washer 6 and bearing outer ring pressing plate 7, the center line by adjustment 8 pairs of worm screws of pad and two star-wheels carries out rapid and precise adjusting then.Because the empty machine of single screw rod is very high to the requirement that this center overlaps, again because the appearance of cumulative error in the course of working, so in the middle of installation process, the probability that overlaps smoothly is very little for the first time, so, through after the design improvement of the present invention, need only when just adorning, add a basic pad, draw the actual deviation of worm screw and two star-wheels then by the centering actual measurement; If basic pad is 4.5mm, when the actual measurement deviation be+during 0.2mm, only need carry out grinding to the 5mm specification from serial pad, grinding capacity is 0.3mm; When actual deviation be-during 0.2mm, only need carry out grinding from basic pad 4.5nn, grinding capacity is 0.2mm; Reload after finishing between rear bearing block 2 and the housing 1 and get final product, that is to say just only needs once to adjust and worm screw and the coincidence of two star-wheel centers can be reached within the ideal value scope.
Fig. 3 is the rear bearing block sectional view, and its structure just is directed to the present invention fully and designs, and itself forming an enclosed cavity completely, is used for installing two angular contact ball bearings; The inside and outside circle of its bearing is located fully, be beneficial to quick, accurately adjustment worm screw and two star-wheel central lines.
Being preferred embodiment of the present invention only in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (3)
1, a kind of convenient single-screw compressor, it comprises housing, main shaft, rear bearing block, bearing is adjusted structure, it is characterized in that: rear bearing block adopts enclosed construction, two angular contact ball bearings are placed in the bearing bore, by the shaft shoulder and plain round nut bearing inner race is fixed, bearing outer ring is then by endoporus step and bearing outer ring pressing plate location; Adjusting pad places between housing and the rear bearing block.
2, convenient single-screw compressor according to claim 1 is characterized in that: adjust pad and thickness thereof and divide two kinds of serial size: 5mm, 4mm, 3mm, 2mm and 2.5mm, 3.5mm, 4.5mm.
3, convenient single-screw compressor according to claim 1 and 2 is characterized in that: be provided with lock washer between this plain round nut and the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101115982A CN100396932C (en) | 2005-12-16 | 2005-12-16 | Convenient single-screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101115982A CN100396932C (en) | 2005-12-16 | 2005-12-16 | Convenient single-screw compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1982717A true CN1982717A (en) | 2007-06-20 |
| CN100396932C CN100396932C (en) | 2008-06-25 |
Family
ID=38165452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101115982A Expired - Fee Related CN100396932C (en) | 2005-12-16 | 2005-12-16 | Convenient single-screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100396932C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678567A (en) * | 2012-02-03 | 2012-09-19 | 贵州中电振华精密机械有限公司 | Screw axial adjustment mechanism for single-screw compressor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6138189A (en) * | 1984-07-31 | 1986-02-24 | Sanden Corp | Axial gap regulator for scroll type compressor |
| DK585D0 (en) * | 1985-01-02 | 1985-01-02 | Sabroe & Co As | ACTIONALLY ADJUSTABLE RENTAL INSTALLATION IN A ROTOR MACHINE LIKE A SCREW COMPRESSOR |
| US4610612A (en) * | 1985-06-03 | 1986-09-09 | Vilter Manufacturing Corporation | Rotary screw gas compressor having dual slide valves |
| JP3312502B2 (en) * | 1994-09-26 | 2002-08-12 | 石川島播磨重工業株式会社 | Structure for fitting and fixing timing gear to rotor shaft of supercharger |
| CN2363088Y (en) * | 1999-02-14 | 2000-02-09 | 佛山市禅山空气压缩机厂 | Single screw bolt air compressor |
| CN1079501C (en) * | 1999-10-26 | 2002-02-20 | 查世樑 | Energy-saving single-bolt compressor |
| CN2589694Y (en) * | 2002-10-31 | 2003-12-03 | 上海飞和机械有限公司 | Single spiral rod air compressor |
-
2005
- 2005-12-16 CN CNB2005101115982A patent/CN100396932C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678567A (en) * | 2012-02-03 | 2012-09-19 | 贵州中电振华精密机械有限公司 | Screw axial adjustment mechanism for single-screw compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100396932C (en) | 2008-06-25 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20080625 Termination date: 20131216 |