CN1872471A - Dedicated maintenance tool for sheath of connecting rod in engine - Google Patents
Dedicated maintenance tool for sheath of connecting rod in engine Download PDFInfo
- Publication number
- CN1872471A CN1872471A CN 200510043655 CN200510043655A CN1872471A CN 1872471 A CN1872471 A CN 1872471A CN 200510043655 CN200510043655 CN 200510043655 CN 200510043655 A CN200510043655 A CN 200510043655A CN 1872471 A CN1872471 A CN 1872471A
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- CN
- China
- Prior art keywords
- connecting rod
- reamer
- engine
- clamp body
- blade
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A repair tool dedicated for the connecting rod sleeve of engine is composed of a reamer consisting a cutting edge, a correcting edge and a cylindrical guide post, and a fixture comprising a main body with a locating surface matched with the reference end face of said connecting rod, a clamping unit for fastening said connecting rod onto said locating surface and a guide sleeve matched with the guide post of said reamer.
Description
Technical field
The present invention relates to the hole technical field of processing equipment of sheath of connecting rod of engine, relate in particular to a kind of that in maintenance industry, use, can make new connecting rod cover after the replacing recover the maintenance tool of original precision again.
Background technology
Known engine link, the one end is connected with piston by piston pin, and its other end is fixedlyed connected with bent axle by connecting rod bearing cap.At work, relatively rotate between connecting rod cover and the piston pin, be easy to generate wearing and tearing, after the wearing and tearing of connecting rod cover the noise of engine is increased, pneumatics has a strong impact on the operate as normal of engine than reducing, thereby must change.New connecting rod cover all leaves allowance, in general automobiles repair shop owing to there is not a specific purpose tool, though can guarantee certain form accuracy and dimensional accuracy with common reamer, but can not guarantee the positional precision of connecting rod cover, that is to say, under complete situation with hand-guided, the axis that can not guarantee processed connecting rod trepanning is vertical with its technological datum (end face of connecting rod), the connecting rod cover of Xiu Fuing in this way, after being assembled on the engine, it is crooked that piston is produced in cylinder, cause the eccentric wear of piston and cylinder, between piston group and cylinder gas leakage and scurry oil, too big if its perpendicularity differs, connecting rod can't assemble, finally can only change connecting rod, increase maintenance cost greatly.
Summary of the invention
Technical problem to be solved by this invention is: a kind of special-purpose maintenance tool of sheath of connecting rod of engine is provided, and it uses simple structure, not only makes the connecting rod cover obtain enough form accuracy and dimensional accuracy, and can also obtain good positional precision.
For solving the problems of the technologies described above, technical scheme of the present invention is: the special-purpose maintenance tool of sheath of connecting rod of engine, comprise reamer and anchor clamps, described reamer by the cutting blade of the cone-shaped that is positioned at head, be positioned at the suitable correction blade of the processing dimension with the connecting rod cover at cutting blade rear portion and be positioned at the cylindrical guiding cylinder of revising the blade rear portion and forms, described cutting blade, revise blade and the cylinder that leads has same axis; Described anchor clamps comprise a clamp body, and this clamp body has a plane of orientation that can fit with the datum end face of connecting rod; The clamping device that connecting rod can be clamped in this plane of orientation; A fairlead, the endoporus of this fairlead cooperates with the lead body space of reamer, and plane of orientation of axially bored line and clamp body is perpendicular in it.
Owing to adopted technique scheme, during use, earlier connecting rod is put into clamp body, the datum end face of connecting rod and the plane of orientation of clamp body are fitted; Again reamer is inserted clamp body along fairlead, mobile link makes the cone-shaped cutting blade of reamer head partly stretch into the connecting rod trepanning and positions, again by clamping device will this moment connecting rod be clamped in the plane of orientation of clamp body.During hinge pin, because cutting blade, correction blade and guiding cylinder have same axis, and the effect of fairlead is exactly to limit the random swing of reamer when ream, thereby the precision of the matched in clearance of the guiding cylinder of fairlead endoporus and reamer is high more, the free gap of guiding cylinder in fairlead of reamer is just more little, and dimensional accuracy that is obtained during fraising and form accuracy are just high more.On the other hand, the plane of orientation of axially bored line and clamp body is perpendicular in the fairlead, so axially bored line is vertical with the datum end face of connecting rod in the cover of the connecting rod behind the ream, so just guarantees that the connecting rod cover obtains good positional precision.As can be seen, the size of connecting rod trepanning, shape and positional precision all guarantee that by corresponding construction of the present invention it is not only easy to use, the machining accuracy height, and avoided artificial factor fully.
As a kind of improvement, the diameter of the lead body portion of described reamer is greater than the diameter of revising knife edge part.Its effect is that when reamer was stretched into fairlead, the correction blade can not run into the fairlead inner hole wall, avoids making it to sustain damage.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing is the structural representation of the embodiment of the invention.
The specific embodiment
The special-purpose maintenance tool of sheath of connecting rod of engine as shown in drawings, comprises reamer 1 and anchor clamps 2.
Described reamer 1 by the cutting blade 13 of the cone-shaped that is positioned at head, be positioned at the suitable correction blade 12 of the processing dimension with the connecting rod cover at cutting blade 13 rear portions and be positioned at the cylindrical guiding cylinder 11 of revising blade 12 rear portions and form, the diameter of guiding cylinder 11 is not less than the diameter of revising blade 12 parts, preferably be slightly larger than the diameter of revising blade 12 parts, like this, when reamer stretches into fairlead 23, revise blade 12 and can not run into the fairlead inner hole wall, avoid making it to sustain damage.Cutting blade 13, correction blade 12 and guiding cylinder 11 have same axis; The cutting blade 13 of the head of reamer 1 is made as the reason of cone-shaped, be connecting rod is enclosed within have in the anchor clamps 2 one good self-align.
Anchor clamps 2 comprise 22, one glands 21 of a clamp body and a fairlead 23.Clamp body 22 has a plane of orientation 22a that can fit with the datum end face of connecting rod; Gland 21 is threaded with clamp body 22, this gland 21 be axially arranged with the through hole that when fraising can pass for reamer 1, when rotating gland 21, can be on plane of orientation 22a with the connecting rod cramping.Guiding cylinder 11 matched in clearance of the endoporus of fairlead 23 and reamer, plane of orientation 22a of axially bored line and clamp body 22 is perpendicular in it.Fairlead 23 is made as one with clamp body 22, thereby makes the structure of anchor clamps 2 more simple and practical.
Using method: earlier connecting rod is put into clamp body 22, the datum end face of connecting rod and the plane of orientation 22a of clamp body 22 are fitted; Again reamer 1 is inserted clamp bodies 22 along fairlead 23, mobile link makes cone-shaped cutting blade 13 parts of reamer head stretch into the connecting rod trepanning and positions, and rotates the plane of orientation 22a that connecting rods that gland 21 will this moment are clamped in clamp body.During hinge pin, because cutting blade 13, correction blade 12 and guiding cylinder 11 have same axis, and the effect of fairlead 23 is exactly to limit the random swing of reamer 1 when ream, thereby the precision of the matched in clearance of the guiding cylinder 11 of fairlead 23 endoporus and reamer is high more, the free gap of guiding cylinder 11 in fairlead 23 of reamer is just more little, and dimensional accuracy that is obtained during fraising and form accuracy are just high more.On the other hand, the plane of orientation 22a of axially bored line and clamp body 22 is perpendicular in the fairlead 23, so axially bored line is vertical with the datum end face of connecting rod in the cover of the connecting rod behind the ream, so just guarantees that the connecting rod cover obtains good positional precision.As can be seen, the size of connecting rod trepanning, shape and positional precision all guarantee that by corresponding construction of the present invention it is not only easy to use, the machining accuracy height, and avoided artificial factor fully, and reduced maintenance cost, be that the connecting rod of Auto repair shop's indispensability overlaps special-purpose maintenance tool.
Claims (4)
1, the special-purpose maintenance tool of sheath of connecting rod of engine, comprise reamer (1) and anchor clamps (2), it is characterized in that: described reamer (1) by the cutting blade (13) of the cone-shaped that is positioned at head, be positioned at the suitable correction blade (12) of the processing dimension with the connecting rod cover at cutting blade (13) rear portion and be positioned at the cylindrical guiding cylinder (11) of revising blade (12) rear portion and forms, described cutting blade (13), revise blade (12) and the cylinder (11) that leads has same axis; Described anchor clamps (2) comprise a clamp body (22), and this clamp body (22) has a plane of orientation (22a) that can fit with the datum end face of connecting rod; The clamping device that connecting rod can be clamped in this plane of orientation (22a); A fairlead (23), guiding cylinder (11) matched in clearance of endoporus of this fairlead (23) and reamer, plane of orientation (22a) of axially bored line and clamp body (22) is perpendicular in it.
2, the special-purpose maintenance tool of sheath of connecting rod of engine as claimed in claim 1 is characterized in that: described fairlead (23) is made as one with clamp body (22).
3, the special-purpose maintenance tool of sheath of connecting rod of engine as claimed in claim 2, it is characterized in that: described clamping device is a gland (21), this gland (21) is threaded with clamp body (22), gland (21) be axially arranged with the through hole that a fraising time can supply reamer (1) to pass.
4, as the special-purpose maintenance tool of claim 1 or 2 or 3 described sheath of connecting rod of engine, it is characterized in that: the diameter of guiding cylinder (11) part of described reamer (1) is greater than the diameter of revising blade (12) part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510043655 CN1872471A (en) | 2005-06-04 | 2005-06-04 | Dedicated maintenance tool for sheath of connecting rod in engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510043655 CN1872471A (en) | 2005-06-04 | 2005-06-04 | Dedicated maintenance tool for sheath of connecting rod in engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1872471A true CN1872471A (en) | 2006-12-06 |
Family
ID=37483160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510043655 Pending CN1872471A (en) | 2005-06-04 | 2005-06-04 | Dedicated maintenance tool for sheath of connecting rod in engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1872471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079248A (en) * | 2018-07-28 | 2018-12-25 | 国营芜湖机械厂 | A kind of aircraft special type profile lug hole hinge repairs device |
| CN114012147A (en) * | 2021-12-03 | 2022-02-08 | 抚顺市特种设备监督检验所 | Drill bit for heat exchange tube and using method |
-
2005
- 2005-06-04 CN CN 200510043655 patent/CN1872471A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079248A (en) * | 2018-07-28 | 2018-12-25 | 国营芜湖机械厂 | A kind of aircraft special type profile lug hole hinge repairs device |
| CN114012147A (en) * | 2021-12-03 | 2022-02-08 | 抚顺市特种设备监督检验所 | Drill bit for heat exchange tube and using method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |