CN101543986A - Device for taking part in blind hole - Google Patents
Device for taking part in blind hole Download PDFInfo
- Publication number
- CN101543986A CN101543986A CN200910026713A CN200910026713A CN101543986A CN 101543986 A CN101543986 A CN 101543986A CN 200910026713 A CN200910026713 A CN 200910026713A CN 200910026713 A CN200910026713 A CN 200910026713A CN 101543986 A CN101543986 A CN 101543986A
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- CN
- China
- Prior art keywords
- blind hole
- bolt
- taking part
- expander
- pressing plate
- 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
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to a device for taking a part in a blind hole, in particular to a device for taking a bush or a bearing in a blind hole, comprising a clamp body, a pulling device an inner expansion device. The clamp body comprises a pressure plate and sizing blocks respectively supported at both ends of the pressure plate; the pulling device comprises a bolt penetrating through the pressure plate, one end of the bolt is in threaded connection with a nut, and the other end is provided with the inner expansion device. The invention adopts the combined operation of the inner expansion device and the pulling device to pull out the part in the blind hole and has the advantages of simple structure, easy processing and assembly and convenient and rapid adjustment.
Description
Technical field
The present invention relates to a kind of device for taking part in blind hole, relate in particular to the device of getting blind hole neck bush or bearing.
Background technology
When maintenance machine tool, run into lining or the bearing that needs to change in the blind hole through regular meeting, need take out lining or bearing in the former blind hole during replacing.Because general lining and bearing top circle are interference or interference fits with cooperating of blind hole, certain tightness is arranged, dismounting is inconvenient, operates very difficult.Prior art generally takes damage type to take by force, like this housing or bearing block inwall is had very big influence, is easy to decrease the ring inwall.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of simple and practical device for taking part in blind hole is provided, use this device can not destroy the inwall of shell blind hole.
According to technical scheme of the present invention: a kind of device for taking part in blind hole, comprise clamp body, pulling off device and interior swelling device, described clamp body is made of pressing plate and the parallels that is supported on these pressing plate two ends, described pulling off device comprises the bolt that passes described pressing plate, the threaded one end of bolt is connected with nut, and its other end is provided with described interior swelling device.
Swelling device is at least two push rods that are hinged on described bolt end in described, and the length of this push rod is greater than half of the internal diameter of part in blind hole.The outer end of described push rod is provided with sawtooth.
Swelling device is an expander in described, and described bolt is provided with central through hole, and its end offers axial groove, and expander comprises head and bar portion, and described central through hole and fastening by clamp nut passes in its bar portion.Described axial groove has four.The head of described expander is a back taper.
Technique effect of the present invention is: the part in the blind hole was pulled out in swelling device and pulling off device integration of operation in the present invention adopted, and is simple in structure, easily processing, assembling, easy to adjust quick.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the present invention;
Fig. 2 is the structural representation of second kind of embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
As shown in Figure 1 and Figure 2, a kind of device for taking part in blind hole of the present invention, comprise clamp body, pulling off device and interior swelling device, described clamp body is made of pressing plate 2 and the parallels that is supported on these pressing plate 2 two ends, described pulling off device comprises the bolt 3 that passes described pressing plate 2, the threaded one end of bolt 3 is connected with nut 1, and its other end is provided with described interior swelling device.
Principle of the present invention is to adopt internal-expansion type, and bolt is pulled out mode.Consider case hardness different of lining in the blind hole and bearing, and the more problem of lining aperture specification, design two covers and be respectively applied for the device of getting lining and bearing.Because bearing material is a bearing steel, and the case hardness after the heat treatment reaches more than the 60HRC, thus can design the tapering internal-expansion type at specification commonly used, and the lining relative hardness is much smaller, but interior hole dimension is more, so adopt interchangeable post rod type.
First kind of embodiment of the present invention as shown in Figure 1, for getting blind hole neck bush device, the part here is meant lining 5.Swelling device is at least two push rods 6 that are hinged on bolt 3 ends in described, and the length of this push rod 6 is greater than half of the internal diameter of blind hole neck bush 5.Be provided with sawtooth 7 in the outer end of push rod 6,, be beneficial to Locking bushing 5 to increase frictional force.
The course of work of getting blind hole neck bush device is as follows: will put into lining 5 endoporus with the hinged serrate all right one way or the other movable push rod 6 of head of bolt 3, and put the parallels 4 that is higher than lining 5 length near the place of lining 5.Put pressing plate 2 again, the nut 1 of screwing on.Requirement is grown up in the lining internal diameter after two movable push rods 6 are stretched, when promptly push rod 6 pulls out outward and lining 5 inwalls be in self-locking dress attitude.When fastening nut 1, the sawtooth of movable push rod 6 outer ends is pushed down lining 5 inwalls tightly, and what keep screws nut 1 and just can extract lining 5 in the hole.
Second kind of embodiment of the present invention as shown in Figure 2, for getting blind hole inner bearing device, the part here is meant bearing 12.Swelling device is an expander 8 in described, and the head of expander 8 is a back taper.Bolt 3 is provided with central through hole 11, and its end offers four axial grooves 10, and expander 8 comprises head and bar portion, and described central through hole 11 and fastening by clamp nut 9 passes in its bar portion.
The course of work of getting blind hole inner bearing device is as follows: the bolt 3 that the end is offered four axial grooves 10 is put into dead eye, and by tightening clamp nut 9, expander 7 will make bolt 3 end distendings and tighten bearing 12 inner rings.Then fastening nut 1 is extracted bearing 12.Bolt 3 and inner dilator 7 are designed to suitable outside dimension according to the brearing bore of different size.
Claims (6)
1, a kind of device for taking part in blind hole, comprise clamp body, pulling off device and interior swelling device, it is characterized in that: described clamp body is made of pressing plate (2) and the parallels that is supported on this pressing plate (2) two ends, described pulling off device comprises the bolt (3) that passes described pressing plate (2), the threaded one end of bolt (3) is connected with nut (1), and its other end is provided with described interior swelling device.
2, according to the described device for taking part in blind hole of claim 1, it is characterized in that: swelling device is for being hinged at least two push rods (6) of described bolt (3) end in described, and the length of this push rod (6) is greater than half of the internal diameter of part in blind hole (5).
3, according to the described device for taking part in blind hole of claim 2, it is characterized in that; The outer end of described push rod (6) is provided with sawtooth (7).
4, according to the described device for taking part in blind hole of claim 1, it is characterized in that: swelling device is expander (8) in described, described bolt (3) is provided with central through hole (11), its end offers axial groove (10), expander (8) comprises head and bar portion, and described central through hole (11) and fastening by clamp nut (9) passes in its bar portion.
5, according to the described device for taking part in blind hole of claim 4, it is characterized in that: described axial groove (10) has four.
6, according to the described device for taking part in blind hole of claim 4, it is characterized in that: the head of described expander (8) is a back taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910026713A CN101543986A (en) | 2009-04-28 | 2009-04-28 | Device for taking part in blind hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910026713A CN101543986A (en) | 2009-04-28 | 2009-04-28 | Device for taking part in blind hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101543986A true CN101543986A (en) | 2009-09-30 |
Family
ID=41191495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910026713A Pending CN101543986A (en) | 2009-04-28 | 2009-04-28 | Device for taking part in blind hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101543986A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052910A (en) * | 2010-12-07 | 2011-05-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Expanding and positioning device for measuring transition section part |
| CN101708606B (en) * | 2009-12-02 | 2012-06-27 | 谭伟宜 | Multifunctional engine cylinder sleeve puller |
| CN104551605A (en) * | 2015-01-08 | 2015-04-29 | 杭州科技职业技术学院 | Valve element drawing mechanism |
| CN105345736A (en) * | 2015-12-19 | 2016-02-24 | 中国海洋石油总公司 | Du bushing disassembling tool |
| CN105459010A (en) * | 2015-12-01 | 2016-04-06 | 广东精铟海洋工程股份有限公司 | Demounting tool for cartridge valve |
| CN107984427A (en) * | 2017-12-01 | 2018-05-04 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine is with disassembling bushing device and application method in blind hole |
-
2009
- 2009-04-28 CN CN200910026713A patent/CN101543986A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708606B (en) * | 2009-12-02 | 2012-06-27 | 谭伟宜 | Multifunctional engine cylinder sleeve puller |
| CN102052910A (en) * | 2010-12-07 | 2011-05-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Expanding and positioning device for measuring transition section part |
| CN104551605A (en) * | 2015-01-08 | 2015-04-29 | 杭州科技职业技术学院 | Valve element drawing mechanism |
| CN105459010A (en) * | 2015-12-01 | 2016-04-06 | 广东精铟海洋工程股份有限公司 | Demounting tool for cartridge valve |
| CN105345736A (en) * | 2015-12-19 | 2016-02-24 | 中国海洋石油总公司 | Du bushing disassembling tool |
| CN107984427A (en) * | 2017-12-01 | 2018-05-04 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine is with disassembling bushing device and application method in blind hole |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090930 |