CN1504298A - Rapid bearing lifter - Google Patents
Rapid bearing lifter Download PDFInfo
- Publication number
- CN1504298A CN1504298A CNA02150802XA CN02150802A CN1504298A CN 1504298 A CN1504298 A CN 1504298A CN A02150802X A CNA02150802X A CN A02150802XA CN 02150802 A CN02150802 A CN 02150802A CN 1504298 A CN1504298 A CN 1504298A
- Authority
- CN
- China
- Prior art keywords
- bearing
- arc
- screw mandrel
- screw
- staged
- 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.)
- Pending
Links
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Automatic Assembly (AREA)
Abstract
A quick-speed bearing puller for arrangements for dismantling small-sized machine accessories, characterized by that the two semi-circle tubular arc drawing paws are enclosed by a sheath hoop, the one end of which is a ring form contact surface formed by an arc jaw hook for exerting the pulling force onto the bearing to be dismantled, the arc jaw hood on the other end is embedded in the annular recess of the staged screw nut, the staged screw nut engages the lead screw traversing screw hole, the lead screw supports the shaft of the bearing to be removed. With the displacement of the staged screw nut produced by the rotation acted by the external force, the bearing is removed.
Description
Technical field:
The present invention relates to a kind of hand-operated tools of dismantling the small-sized machine part, specifically, is the quick driver-extractor of a kind of bearing, and it is specially adapted to the dismounting of external diameter less than 200 millimeters bearing, short cylinder gear, shaft coupling, belt pulley.
Background technology
At present, there is structural deficiency in the bearing driver-extractor: although two of suit semicircle tubular arc pulling claws can coincide mutually and constitute a cylindrical shell on screw mandrel, and can wale by the tubular cuff that matches, so that claw hook hooks unlikely scattering when being unloaded bearing, but the inner headed face of this arc pulling claw other end is the internal thread for being meshed with screw mandrel but, this internal thread just is made of the screw thread on two semicircles like this, thereby when meshing with screw mandrel, not only engagement property is poor, and reduce to have reduced bearing capacity owing to the engagement contact area, this in addition structure has also caused the difficulty of machining, and main is to cause operation inconvenience when using, pulling force reduces.
Summary of the invention:
The objective of the invention is to improve the said structure problem, when a kind of use is provided dismounting light, quick, be easy to machining, good with screw mandrel engagement property, the small size bearing driver-extractor that pulling force is big.
To achieve these goals, the present invention solves the scheme that its technical problem adopts and is: the bearing driver-extractor is made of screw mandrel, step nut, cuff and two arc pulling claws.Two arc pulling claws all are the semicircle tubular, and the cylindrical shell of formation that coincide mutually; Barrel outer surface has a cuff.Respectively there is an arc claw hook at the two ends of arc pulling claw, and wherein the arc claw hook of an end acts on and unloaded bearing, and the arc claw hook interlocking of the other end is in the annular groove of step nut.This step nut directly is meshed with the screw mandrel that passes its screw.
Good effect of the present invention is rational in infrastructure, and mounting or dismounting are convenient, and bearing capacity increases.
Description of drawings:
Below in conjunction with accompanying drawing the present invention is elaborated.
Fig. 1 is vertical half sectional view of the present invention.
The specific embodiment:
Consult shown in the accompanying drawing 1, the present invention has two to be the semicircle tubular and mutually to coincide and constitute the arc pulling claws 5 of a cylindrical shell, has a tubular cuff 6 that it is waled at its outer surface.The claw hook 1 of arc pulling claw 5 one ends, the quilt that can hook on the arbor 3 unloads bearing; The arc claw hook 7 of the other end can be rabbeted relatively in the annular groove of step nut 8, and this step nut 8 is meshed with the screw mandrel that passes its screw.During work, at first tighten screw mandrel 9 and make on its end face that withstands on arbor 3, with spanner rotation step nut 8, like this, arc pulling claw 5 acts directly on power by its claw hook 1 and is unloaded on the bearing, thereby bearing is slowly unloaded then.The frictional force that produces when rotating on the end face of arbor 3 in order to reduce screw mandrel 9 is equipped with a steel ball 4 on the end face of screw mandrel, described steel ball 4 adopts spheroidal graphite cast-iron.
Claims (2)
1. quick driver-extractor of bearing, constitute by screw mandrel, step nut, cuff and two arc pulling claws, it is characterized in that: two arc pulling claws all are the semicircle tubular, and coincide mutually and constitute a cylindrical shell, barrel outer surface has a cuff, respectively there is an arc claw hook at the two ends of arc pulling claw, and wherein the interlocking of the arc claw hook of an end is in the annular groove of step nut, and described step nut is meshed with the screw mandrel that passes its screw.
2. the quick driver-extractor of bearing according to claim 1 is characterized in that: a steel ball is installed on the end face of screw mandrel, and described steel ball adopts spheroidal graphite cast-iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA02150802XA CN1504298A (en) | 2002-11-29 | 2002-11-29 | Rapid bearing lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA02150802XA CN1504298A (en) | 2002-11-29 | 2002-11-29 | Rapid bearing lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1504298A true CN1504298A (en) | 2004-06-16 |
Family
ID=34234073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA02150802XA Pending CN1504298A (en) | 2002-11-29 | 2002-11-29 | Rapid bearing lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1504298A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354137A (en) * | 2014-08-28 | 2015-02-18 | 际华三五四二纺织有限公司 | Tool for disassembly of drafting transmission shaft of wallboard of spinning frame |
| CN105171685A (en) * | 2015-09-15 | 2015-12-23 | 宁波斯达弗液压传动有限公司 | Sliding bearing fixing device |
| CN106217310A (en) * | 2014-09-09 | 2016-12-14 | 朱玉兵 | The device of unloading axle end bearing |
| CN111300334A (en) * | 2020-04-07 | 2020-06-19 | 重庆江增船舶重工有限公司 | Mixed flow turbocharger shaft sleeve dismounting tool and method |
-
2002
- 2002-11-29 CN CNA02150802XA patent/CN1504298A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354137A (en) * | 2014-08-28 | 2015-02-18 | 际华三五四二纺织有限公司 | Tool for disassembly of drafting transmission shaft of wallboard of spinning frame |
| CN106217310A (en) * | 2014-09-09 | 2016-12-14 | 朱玉兵 | The device of unloading axle end bearing |
| CN105171685A (en) * | 2015-09-15 | 2015-12-23 | 宁波斯达弗液压传动有限公司 | Sliding bearing fixing device |
| CN111300334A (en) * | 2020-04-07 | 2020-06-19 | 重庆江增船舶重工有限公司 | Mixed flow turbocharger shaft sleeve dismounting tool and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |