CN2436708Y - Axle hole gap locking structure - Google Patents
Axle hole gap locking structure Download PDFInfo
- Publication number
- CN2436708Y CN2436708Y CN 00220512 CN00220512U CN2436708Y CN 2436708 Y CN2436708 Y CN 2436708Y CN 00220512 CN00220512 CN 00220512 CN 00220512 U CN00220512 U CN 00220512U CN 2436708 Y CN2436708 Y CN 2436708Y
- Authority
- CN
- China
- Prior art keywords
- flange
- supporting
- shaft
- expansion sleeve
- tight
- 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.)
- Expired - Fee Related
Links
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- Earth Drilling (AREA)
Abstract
The utility model relates to a tight locking structure for shaft hole gaps, which mainly comprises a supporting shaft, a tight expansion sleeve of a flange, a supporting seat, a lining sleeve, a movable arm, and a fastening bolt, wherein, the tight expansion sleeve of the flange forms a cone shape. A tight expansion slot is arranged on the tight expansion sleeve of the flange. The tight expansion sleeve of the flange is plugged between the supporting shaft and a taper hole of the supporting seat. The tight expansion sleeve of the flange is matched with the supporting shaft by a gap. The tight expansion sleeve of the flange is matched with a shaft taper hole of the supporting seat. The supporting seat, the tight expansion sleeve of the flange, and the supporting shaft are fastened into integration by the fastening bolt. When the tight locking structure is adopted by large size machines, such as carry scrapers or excavating machines to work, impact force in a shaft direction, which is generated between a shaft hole of the supporting seat and the supporting shaft, is tiny. Dust particles in the outside world are unable to enter either. The abrasion of the shaft hole of the supporting seat is decreased. The service life of the machines is prolonged.
Description
The utility model relates to a kind of axis hole dwell lock locking structure, is applicable to that the axis hole of machinery connects.
It is connecting mode between the most frequently used mechanical parts that axis hole connects.For just installing, supporting axle and axis hole are generally Spielpassung, rotate and axial motion for preventing supporting axle, and the operated by rotary motion bolt pin also adds lining at position easy to wear.The disadvantage of existing this axis hole connecting mode is to cause the supporting base axis hole easily, the gauge wear of connection seat axis hole, especially resemble the big machinery of scraper, excavator one class, work under bad environment is during operation, extraneous grit constantly enters between the Spielpassung of supporting axle and supporting base axis hole, supporting axle has quickened the wearing and tearing of supporting base axis hole, if serious wear to the impact force of supporting base axis hole in addition, cause axis hole to tear, also can cause personal injury accident.
The purpose of this utility model is to connect the defective that exists at above-mentioned existing axis hole, proposes a kind of mechanical axis interporal lacuna locking mechanism that the axis hole wearing and tearing is reduced to minimum.
The utility model is achieved in that the supporting base axis hole is processed into taper, be encased inside flange swelling cover between supporting axle and the supporting base axis hole, flange swelling cover is conical and matches with the supporting base axial cone hole, and flange swelling cover and supporting axle Spielpassung also have expanding trough on it.Supporting base, flange swelling cover, supporting axle is fastening in aggregates during installation with clamping bolt, can not produce any impact force between supporting base axis hole and the supporting axle, there is not the gap yet, prevented that dust from entering, exhausted big degree ground has reduced the wearing and tearing of supporting base axis hole.
The utility model is described in further detail below in conjunction with accompanying drawing.Accompanying drawing 1 is an axis hole dwell lock locking structure schematic representation of the present utility model, and accompanying drawing 2 is accompanying drawing 1 an A-A sectional view.Referring to accompanying drawing, supporting base axial cone hole 3, flange swelling cover 2 are processed into and supporting base axis hole awl 3 taper shapes that match, have expanding trough a on it, flange swelling cover 2 is filled between supporting axle 1 and the supporting base axis hole awl 3, with supporting axle 1 Spielpassung, matches with supporting base axial cone hole 3.Be lined with lining 4 between swing arm 7 and the supporting axle 1.In the fastening screw 8 that clamping bolt 6 screws on the supporting base.Tighten clamping bolt 6,, make supporting base, flange swelling cover 2 and supporting axle 1 be fastened to firm integral body owing to the conical surface of flange swelling cover 2 and cooperating of supporting base axial cone hole 3.During dismounting, screw out clamping bolt 6, screw in two bolts again and unload in the cover internal thread 5, withstand on the side of supporting base, application of force is screwed in, take off flange swelling cover 2, just desirable lower support axle 1.
Claims (2)
1, a kind of axis hole dwell lock locking structure, comprise supporting axle (1), flange swelling cover (2), supporting base, lining (4), swing arm (7) and clamping bolt (6) etc., it is characterized in that: flange swelling cover (2) is filled between supporting axle (1) and the supporting base axial cone hole (3), flange swelling cover (2) and supporting axle (1) Spielpassung, flange swelling cover (2) matches with supporting base axial cone hole (3), and clamping bolt (6) is fastening in aggregates with supporting base, flange swelling cover (2) and supporting axle (1).
2, by the described axis hole dwell lock of claim 1 locking structure, it is characterized in that: flange swelling cover (2) is conical and matches with supporting base axial cone hole (3), and expanding trough (a) is arranged on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220512 CN2436708Y (en) | 2000-05-31 | 2000-05-31 | Axle hole gap locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00220512 CN2436708Y (en) | 2000-05-31 | 2000-05-31 | Axle hole gap locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2436708Y true CN2436708Y (en) | 2001-06-27 |
Family
ID=33585542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00220512 Expired - Fee Related CN2436708Y (en) | 2000-05-31 | 2000-05-31 | Axle hole gap locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2436708Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818223A (en) * | 2010-03-26 | 2010-09-01 | 桂林穿孔公司 | Method for calculating clearance between shaft and bushes and rotary mechanism of base type cantilever iron notch drill |
| CN101176947B (en) * | 2006-11-09 | 2011-05-25 | 深圳市大族激光科技股份有限公司 | Laser cutting machine tool and cutting head for laser cutting machine tool |
-
2000
- 2000-05-31 CN CN 00220512 patent/CN2436708Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101176947B (en) * | 2006-11-09 | 2011-05-25 | 深圳市大族激光科技股份有限公司 | Laser cutting machine tool and cutting head for laser cutting machine tool |
| CN101818223A (en) * | 2010-03-26 | 2010-09-01 | 桂林穿孔公司 | Method for calculating clearance between shaft and bushes and rotary mechanism of base type cantilever iron notch drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |