CN104097180A - Sleeve extracting device - Google Patents
Sleeve extracting device Download PDFInfo
- Publication number
- CN104097180A CN104097180A CN201410315034.XA CN201410315034A CN104097180A CN 104097180 A CN104097180 A CN 104097180A CN 201410315034 A CN201410315034 A CN 201410315034A CN 104097180 A CN104097180 A CN 104097180A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- pipe
- sleeve pipe
- tapered cup
- cup nut
- 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.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a sleeve extracting device. The sleeve extracting device comprises a conical head screw (4), an annular tube (5) and a conical nut (6), wherein a plurality of strip-shaped grooves are formed in tube openings in two ends of the annular tube (5) along the axis; the annular tube (5) sleeves the outer wall of the conical head screw (4); one end of the conical head screw (4) is a conical head; the other end of the conical head screw (4) is a cylindrical head; a conical nut (6) sleeves the cylindrical head and is partially sleeved by one tube opening of the annular tube; and a conical tip is arranged on the conical nut (6), is opposite to the tube opening of the annular tube (5), and is screwed in the tube opening through threads on the conical nut (6), so that the tube opening of the annular tube (5) is squeezed by the conical tip and then is expanded. By the sleeve extracting device, a sleeve assembled in an inner hole of a workpiece can be quickly and effectively extracted, the workpiece cannot be damaged, the production efficiency is improved, and the production cost is reduced.
Description
Technical field
The present invention relates to field of mechanical technique, relate in particular to a kind of covering device of getting for sleeve.
Background technology
In mechanical processing industry, often can run into situation about sleeve need to be taken out from workpiece body endoporus.If the gap between body endoporus and sleeve is large or body endoporus is clear opening, can comparatively simply sleeve be taken out.But when body endoporus is blind hole (or stepped hole), and with sleeve be interference fits (or getting rusty in hole), and endoporus and sleeve cylindrical be sealing ring seal situation time; Adopt common method to be difficult to sleeve to take out smoothly.As shown in Figure 1, three kinds of special circumstances that sleeve coordinates with body endoporus in figure, have been listed respectively from left to right, that is: interference fits+blind hole, interference fits+stepped hole, sealing ring 3 sealings+blind hole.
At present, situation for above-mentioned sleeve and the more difficult taking-up of body endoporus fit system, the method of mainly taking has the methods such as gas cutting sleeve or machining that sleeve is taken out, if adopt the method for gas cutting sleeve, because flame is difficult to control, when easily causing flame to cut off sleeve, damage workpiece body, if adopt the method (as: drilling reaming method or boring reaming method are removed sleeve) of machining, can increase machine tooling expense, especially adopt heavy duty machine tools expense can significantly increase.The above-mentioned cover method of getting finally causes increasing production cost, reduces production efficiency, also may cause damage to workpiece body simultaneously.
Summary of the invention
The object of the invention is to, for solution adopts, existing sleeve extracting method is more difficult takes out it from inner hole of workpiece, or it is higher to get the cost that cover brings, and the technical problem of easily damaged workpiece body, a kind of covering device of getting for sleeve is provided, utilize this to get covering device and can extract quickly and efficiently the sleeve assembling in inner hole of workpiece, solved inner hole of workpiece and sleeve and the in the situation that of complex match, be difficult to take out the situation of sleeve, improved operating efficiency simultaneously.
For achieving the above object, the invention provides a kind of covering device of getting for sleeve.Comprise: conehead screw rod, sleeve pipe and tapered cup nut; The mouth of pipe place, two ends of described sleeve pipe all offers several bar-shaped troughs along its axis, and this sleeve pipe is nested on the outer wall of conehead screw rod; One end of described conehead screw rod is conical head, its other end is cheese head, the gap of this cheese head and the sleeve pipe mouth of pipe is arranged with tapered cup nut, described tapered cup nut is provided with cone point, this cone point is relative with the mouth of pipe of sleeve pipe, and by the screw thread on tapered cup nut, this cone point is screwed in the mouth of pipe, make the mouth of pipe of sleeve pipe be subject to the extruding of cone point and expand.
As the further improvement of technique scheme, described sleeve pipe is also provided with fish scale button on the outer wall near tapered cup nut one end.
As the further improvement of technique scheme, the diameter of the conical head end of described conehead screw rod is less than sleeve aperture 0.2mm～0.3mm, and the tapering of this conehead screw rod is 15 °～20 °.
As the further improvement of technique scheme, the external diameter of described sleeve pipe is less than sleeve aperture 0.5mm～0.6mm, and the wall thickness of this sleeve pipe is 1mm～1.5mm.
As the further improvement of technique scheme, described sleeve pipe is evenly offered four road bar-shaped troughs in the one end near tapered cup nut along the mouth of pipe, and it evenly offers three road bar-shaped troughs in the one end away from tapered cup nut along the mouth of pipe.
As the further improvement of technique scheme, the external diameter of the cone point head of described tapered cup nut is between conehead screw diameter and casing inner diameter, and the tapering of this cone point is 15 °～20 °.
As the further improvement of technique scheme, the external diameter of the cone point afterbody of described tapered cup nut is greater than casing inner diameter 3mm～5mm.
A kind of advantage of getting covering device for sleeve of the present invention is:
Utilize the covering device of getting of the present invention, can realize and extract quickly and efficiently the sleeve assembling in inner hole of workpiece, needn't adopt again the methods such as gas cutting sleeve or machining, can guarantee that workpiece is not damaged, also improved production efficiency, reduced production cost simultaneously.
Accompanying drawing explanation
Fig. 1 is sleeve and inner hole of workpiece assembling form schematic diagram.
Fig. 2 of the present inventionly gets covering device schematic diagram for sleeve.
Fig. 3 of the present inventionly gets covering device cutaway view for sleeve.
Reference numeral
1, workpiece 2, sleeve 3, sealing ring
4, conehead screw rod 5, sleeve pipe 6, tapered cup nut
7, get covering device
The specific embodiment
Below in conjunction with drawings and Examples, a kind of covering device of getting for sleeve of the present invention is said in detail
Bright.
As shown in Figure 2, the covering device of getting for sleeve of the present invention, comprises conehead screw rod 4, sleeve pipe 5 and tapered cup nut 6.The mouth of pipe place, two ends of described sleeve pipe 5 all offers several bar-shaped troughs along its axis, and this sleeve pipe 5 is nested on the outer wall of conehead screw rod 4; One end of described conehead screw rod 4 is conical head, its other end is cheese head, the gap of this cheese head and sleeve pipe 5 mouths of pipe is arranged with tapered cup nut 6, described tapered cup nut 6 is provided with cone point, this cone point is relative with the mouth of pipe of sleeve pipe 5, and by the screw thread on tapered cup nut 6, this cone point is screwed in the mouth of pipe, make the mouth of pipe of sleeve pipe 5 be subject to the extruding of cone point and expand.This sleeve pipe 5 by the conical head of conehead screw rod 4 and the cooperation of tapered cup nut 6, limits the movement of sleeve pipe 5, so that only can move in the scope between the two ends of conehead screw rod 4.
Based on above-mentioned structure of getting covering device, described conehead screw rod 4 should be determined relative dimensions according to sleeve aperture size, the diameter of the conical head end of this conehead screw rod 4 should be than the little 0.2mm～0.3mm of sleeve 2 aperture size, in order to guarantee that sleeve pipe 5 effectively expands, the tapering of conehead screw rod should be controlled at 15 °～20 ° simultaneously; Described sleeve pipe 5 external diameters should be determined according to sleeve aperture, the external diameter of this sleeve pipe 5 should be than the sleeve 2 little 0.5mm～0.6mm in aperture, its wall thickness should be controlled at 1mm～1.5mm, and should on the outer wall near tapered cup nut 6 one end, process fish scale button, this fish scale button is laciniation, to prevent that get covering device rotates or scurry out in sleeve from sleeve 2.Meanwhile, described sleeve pipe 5 is evenly offered four road bar-shaped troughs in the one end near tapered cup nut 6 along the mouth of pipe, and it evenly offers three road bar-shaped troughs in the one end away from tapered cup nut 6 along the mouth of pipe.6 of described tapered cup nuts should be determined cone point outside dimension according to conehead screw rod 4 and sleeve pipe 5, the external diameter of this cone point head should be between conehead screw rod 4 diameters and the internal diameter of sleeve pipe 5, and the tapering of this cone point should be controlled at 15 °～20 °, the external diameter of described cone point afterbody is greater than sleeve pipe 5 internal diameter 3mm～5mm.
Utilizing foregoing invention to get covering device, to get the use procedure of sleeve as described below:
First, sleeve pipe 5 is nested on conehead screw rod 4, and pretension tapered cup nut 6 makes the sidewall of sleeve pipe 5 fish scale buckles be expanded to the size close with sleeve 2 apertures, due to the other end of the bar-shaped trough number on sleeve pipe 5 fish scale buckle sidewalls more than sleeve pipe 5, first this fish scale buckle expands, then, as shown in Figure 3, by getting covering device 7, from a side of conical head, insert sleeve 2, tapered cup nut 6 is exposed to outside the mouth of sleeve 2, and the tapered cup nut 6 that makes to screw up with a wrench, when tapered cup nut 6 is when screwing in sleeve pipe 5, these sleeve pipe 5 upper ends are subject to the downward and outside pressure-acting that tapered cup nut 6 applies, outside power expands sleeve pipe 5 upper ends, downward power moves down sleeve pipe 5, and the conical head effect that is subject to conehead screw rod 4 also expands its lower end, now on sleeve pipe 5, lower two ends all expand and make in its endoporus that is squeezed in sleeve 2, and fish scale is buckled prevent from getting covering device 7 in the interior rotation of sleeve 2 or the effect of scurrying out from sleeve 2, finally, utilize pin removal that sleeve 2 is extracted from workpiece 1.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is modified or is equal to replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (7)
1. for the covering device of getting of sleeve, it is characterized in that, comprising: conehead screw rod (4), sleeve pipe (5) and tapered cup nut (6); The mouth of pipe place, two ends of described sleeve pipe (5) all offers several bar-shaped troughs along its axis, and this sleeve pipe (5) is nested on the outer wall of conehead screw rod (4); One end of described conehead screw rod (4) is conical head, its other end is cheese head, the gap of this cheese head and sleeve pipe (5) mouth of pipe is arranged with tapered cup nut (6), described tapered cup nut (6) is provided with cone point, this cone point is relative with the mouth of pipe of sleeve pipe (5), and by the screw thread on tapered cup nut (6), this cone point is screwed in the mouth of pipe, make the mouth of pipe of sleeve pipe (5) be subject to the extruding of cone point and expand.
2. the covering device of getting for sleeve according to claim 1, is characterized in that, described sleeve pipe (5) is also provided with fish scale button on the outer wall near tapered cup nut (6) one end.
3. the covering device of getting for sleeve according to claim 1, it is characterized in that, the diameter of the conical head end of described conehead screw rod (4) is less than sleeve (2) aperture 0.2mm～0.3mm, and the tapering of this conehead screw rod (4) is 15 °～20 °.
4. the covering device of getting for sleeve according to claim 1, is characterized in that, the external diameter of described sleeve pipe (5) is less than sleeve (2) aperture 0.5mm～0.6mm, and the wall thickness of this sleeve pipe (5) is 1mm～1.5mm.
5. the covering device of getting for sleeve according to claim 1, it is characterized in that, described sleeve pipe (5) is evenly offered four road bar-shaped troughs in the one end near tapered cup nut (6) along the mouth of pipe, and it evenly offers three road bar-shaped troughs in the one end away from tapered cup nut (6) along the mouth of pipe.
6. the covering device of getting for sleeve according to claim 1, it is characterized in that, the external diameter of the cone point head of described tapered cup nut (6) is between conehead screw rod (4) diameter and sleeve pipe (5) internal diameter, and the tapering of this cone point is 15 °～20 °.
7. the covering device of getting for sleeve according to claim 1, is characterized in that, the external diameter of the cone point afterbody of described tapered cup nut (6) is greater than sleeve pipe (5) internal diameter 3mm～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315034.XA CN104097180B (en) | 2014-07-03 | 2014-07-03 | A kind of covering device of getting for sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315034.XA CN104097180B (en) | 2014-07-03 | 2014-07-03 | A kind of covering device of getting for sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104097180A true CN104097180A (en) | 2014-10-15 |
| CN104097180B CN104097180B (en) | 2016-05-18 |
Family
ID=51665924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410315034.XA Active CN104097180B (en) | 2014-07-03 | 2014-07-03 | A kind of covering device of getting for sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104097180B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400735A (en) * | 2014-10-27 | 2015-03-11 | 西安航空动力股份有限公司 | Irregularly-shaped thin-walled bushing dismounting tool |
| CN111573508A (en) * | 2020-04-01 | 2020-08-25 | 武汉船用机械有限责任公司 | Moving device for oil pipe in shaft |
| CN113338913A (en) * | 2021-06-03 | 2021-09-03 | 中海油田服务股份有限公司 | Auxiliary splitting tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3974734A (en) * | 1974-06-14 | 1976-08-17 | Maechtle Fritz | Expandable anchor stud |
| DE2951366A1 (en) * | 1979-12-20 | 1981-07-09 | Klöckner-Werke AG, 4100 Duisburg | Worn guide bushing extracting device - uses expanding bushing with radially projecting sharp edges |
| RU1785557C (en) * | 1989-10-30 | 1992-12-30 | Эдуард Николаевич Меликов | Puller bolt |
| CN201916315U (en) * | 2011-01-18 | 2011-08-03 | 厉延明 | Expansion anchor stock |
| CN203993756U (en) * | 2014-07-03 | 2014-12-10 | 莱芜钢铁集团有限公司 | A kind of covering device of getting for sleeve |
-
2014
- 2014-07-03 CN CN201410315034.XA patent/CN104097180B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3974734A (en) * | 1974-06-14 | 1976-08-17 | Maechtle Fritz | Expandable anchor stud |
| DE2951366A1 (en) * | 1979-12-20 | 1981-07-09 | Klöckner-Werke AG, 4100 Duisburg | Worn guide bushing extracting device - uses expanding bushing with radially projecting sharp edges |
| RU1785557C (en) * | 1989-10-30 | 1992-12-30 | Эдуард Николаевич Меликов | Puller bolt |
| CN201916315U (en) * | 2011-01-18 | 2011-08-03 | 厉延明 | Expansion anchor stock |
| CN203993756U (en) * | 2014-07-03 | 2014-12-10 | 莱芜钢铁集团有限公司 | A kind of covering device of getting for sleeve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400735A (en) * | 2014-10-27 | 2015-03-11 | 西安航空动力股份有限公司 | Irregularly-shaped thin-walled bushing dismounting tool |
| CN111573508A (en) * | 2020-04-01 | 2020-08-25 | 武汉船用机械有限责任公司 | Moving device for oil pipe in shaft |
| CN113338913A (en) * | 2021-06-03 | 2021-09-03 | 中海油田服务股份有限公司 | Auxiliary splitting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104097180B (en) | 2016-05-18 |
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