CN105181004B - Piston cooling spray hook shooting test tool - Google Patents
Piston cooling spray hook shooting test tool Download PDFInfo
- Publication number
- CN105181004B CN105181004B CN201510669688.7A CN201510669688A CN105181004B CN 105181004 B CN105181004 B CN 105181004B CN 201510669688 A CN201510669688 A CN 201510669688A CN 105181004 B CN105181004 B CN 105181004B
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- CN
- China
- Prior art keywords
- inner tube
- boss
- spray hook
- external bushing
- test tool
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of piston cooling spray hook shooting test tool, it is used for the spray hook that target practice liquid is delivered to the main oil gallery of cylinder block.Piston cooling spray hook shooting test tool includes inner tube, external bushing and locking switch.Inner tube is axially disposed tubular structure, and side wall is provided with multiple through holes, and inner tube one end is provided with first boss, the other end for closing and provided with second boss.External bushing is socketed in outside inner tube, and external bushing can be moved axially relatively with inner tube.External bushing has connection copper sheathing portion, and it can connect through hole and spray hook；And ringfeder portion, it is located at the axial both sides in connection copper sheathing portion, and ringfeder portion coordinates with main oil gallery for gap in a free state.Locking switch can drive inner tube to be axially moveable, and when locking switch is in locking state, the two ends of external bushing are abutted against with first boss and second boss respectively, and ringfeder portion is extruded and radially raised formed with main oil gallery is interference fitted.The present invention can realize good sealing.
Description
Technical field
The present invention relates to diesel engine arts, more particularly to a kind of diesel engine piston cooling spray hook shooting test tool.
Background technology
Piston is the key components and parts of diesel engine, and it is operated under high temperature, high pressure adverse circumstances, to prevent because piston is overheated
And cause the fusing of piston, deformation, cause serious engine failure, overwhelming majority diesel engine is all used with interior cold hole now
Piston, the lubricating oil for being injected into oil duct in piston using cooling spray hook carries out pressure cooling, the use of this structure to piston
The operating temperature of engine piston is minimized, the reliability of engine is greatly improved, but is due to piston cooling
Spray hook in itself, piston cooling spray hook on the engine the mounting hole accuracy of manufacture, assemble the reason such as improper, piston cooling spray hook is sprayed
The lubricating oil drop point penetrated can not entirely fall within oil duct in piston aperture, and the optimal cooling effect of piston is not reached thus,
To eliminate the generation of this phenomenon, install after piston cooling spray hook, it is necessary to target practice experiment is carried out to it, examine on diesel-engine body
Target center position on the drop point for looking into the lubricating oil of each cooling spray hook and the standard target practice plate for representing oil duct in piston orifice position
Error condition is put, cooling spray hook underproof to drop point timely adjust or change, it is ensured that in engine real work,
The drop point of each cooling spray hook lubricating oil spraying, just falls the orifice position in correspondence oil duct in piston.
By the way that piston cooling spray hook shooting test tool is inserted into cylinder block main oil gallery, target practice liquid switch is opened, phase is injected
The target practice liquid of pressure is answered, target practice hydraulic coupling, position, the shape gushed out according to each spray hook is sprayed to examine, differentiate that piston is cooled down
Whether hook is qualified.But, usually there is the O-ring seal quilt on target practice sleeve pipe in traditional piston cooling spray hook shooting test tool
The situation of body main oil gallery trimming, causes poorly sealed, causes the leakage of target practice liquid, target practice insufficient pressure, and then influence examination of practicing shooting
The accuracy tested.Occur the leakage of target practice liquid every time to be required for taking target practice tool changing O-ring seal apart, take very much, make production
Efficiency is reduced.
Accordingly, it would be desirable to a kind of strong and easy to use piston cooling spray hook shooting test tool of sealability.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without answering
When the prior art for being considered as recognizing or implying the information structure in any form well known to persons skilled in the art.
The content of the invention
It is an object of the invention to provide a kind of piston cooling spray hook shooting test tool, lived in the prior art so as to overcome
The O-ring seal of plug cooling spray hook shooting test tool is easily trimmed, sealing effectiveness is bad, in-convenience in use shortcoming.
To achieve the above object, the invention provides a kind of piston cooling spray hook shooting test tool, it is used to practice shooting
Liquid is delivered to the spray hook of the main oil gallery of cylinder block.Piston cooling spray hook shooting test tool mainly includes inner tube, external bushing and lock
Switch for locking.Inner tube is axially disposed tubular structure, and the side wall of inner tube is provided with multiple through holes, and inner tube one end connects with target practice liquid
Pipe is connected and provided with first boss, the other end for closing and provided with second boss.External bushing is socketed in outside inner tube, and
And external bushing can be moved axially relatively with inner tube.External bushing has connection copper sheathing portion, and it can connect through hole and spray hook；With
And ringfeder portion, it is located at the axial both sides in connection copper sheathing portion, and ringfeder portion coordinates with main oil gallery for gap in a free state.Locking
Switch can drive inner tube to be axially moveable, when locking switch is in open mode, and ringfeder portion is in free state；Locking switch
During in locking state, the two ends of external bushing are abutted against with first boss and second boss respectively, and ringfeder portion is extruded and along footpath
It is interference fitted to raised with main oil gallery formation.
Preferably, bore and coordinate for platform in above-mentioned technical proposal, between external bushing and first boss.
Preferably, in above-mentioned technical proposal, one end of external bushing is inner conical surface, in the locked condition, inner conical surface and first
Boss abuts against to form sealing cooperation.
Preferably, in above-mentioned technical proposal, the other end of inner tube is closed by bolt, and the head of bolt forms the
Two boss.
Preferably, in above-mentioned technical proposal, ringfeder portion is made up of rubber.
Preferably, in above-mentioned technical proposal, the adapter of target practice liquid is provided with check valve.
Preferably, in above-mentioned technical proposal, in the locked condition, the pressure of target practice liquid is less than external bushing and first boss phase
The power of abutting.
Compared with prior art, the present invention has the advantages that：
1. the piston cooling spray hook shooting test tool of the present invention can make ringfeder portion radially raised by locking switch
Realize good sealing, it is ensured that individually convey target practice liquid and interference-free to each spray hook, it is to avoid O-shaped sealing in the prior art
Circle, which is easily trimmed, to be caused to leak and influences the accuracy of target practice experiment, while solving replacement o sealing ring influence production effect
The problem of rate；
2. the external bushing of piston cooling spray hook shooting test tool and the first boss of inner tube of the present invention are abutted against, utilize
The restoring force in ringfeder portion realizes the automatic-sealed leakproof between inner tube and external bushing；
3. the piston cooling spray hook shooting test tool of the present invention closes inner tube using bolt and forms second boss, prevent
Target practice liquid is leaked between inner tube and external bushing, while the function of second boss is realized, it is simple in construction easily fabricated.
Brief description of the drawings
Fig. 1 is the schematic diagram of the piston cooling spray hook shooting test tool according to the present invention.
Fig. 2 is that the platform in Fig. 1 bores the enlarged diagram coordinated.
Main Reference Numerals explanation：
1- locking switch, 2- inner tubes, 21- first boss, 22- second boss, 3- external bushings, 31- connection copper sheathings portion, 32-
Ringfeder portion, the adapter of 4- target practices liquid.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment to the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other yuan
Part or other components.
As shown in figure 1, according to a kind of piston cooling spray hook shooting test tool of the specific embodiment of the invention, it is used for
Target practice liquid is delivered to the spray hook (not shown) of the main oil gallery of cylinder block.The piston cooling spray hook shooting test tool can include
Locking switch 1, inner tube 2 and external bushing 3.Inner tube 2 is axially disposed tubular structure, and the side wall of inner tube 2 is provided with multiple logical
Hole, one end of inner tube 2 is connected with target practice liquid adapter 4 and provided with first boss 21 (as shown in Figure 2), the other end to be closing and
And provided with second boss 22.External bushing 3 is socketed in outside inner tube 2, and external bushing 3 can be moved axially relatively with inner tube 2.Outside
Bushing 3 has connection copper sheathing portion 31, and it can connect through hole and spray hook.External bushing 3 also has ringfeder portion 32, and it is located at connection copper
The axial both sides in set portion 31, ringfeder portion 32 coordinates with main oil gallery for gap in a free state.Locking switch 1 can drive inner tube
2 are axially moveable, when locking switch 1 is in open mode, and ringfeder portion 32 is in free state；Locking switch 1 is in locking shape
During state, the two ends of external bushing 3 are abutted against with first boss 21 and second boss 22 respectively, and ringfeder portion 32 is extruded and radially convex
Rise and be interference fitted with main oil gallery formation.
In the embodiment shown in Fig. 1, inner tube 2 is closed by bolt, and to form second convex on the head of bolt
Platform 22, it should, however, be understood that the present invention is not limited thereto, those skilled in the art it is conceivable that closing inner tube 2 its
He all should cover within the scope of the present invention mode with the other modes for forming second boss 22.
In one or more embodiments of the present invention, ringfeder portion can be made up of rubber.It will be appreciated that other
The material with elasticity and toughness well of rubber like also can be used to make ringfeder portion, and those skilled in the art can basis
It is actually needed to select, the present invention is not limited thereto.
In one or more embodiments of the present invention, check valve can be provided with target practice liquid adapter 4.Target practice liquid is taken over
4 provide high pressure target practice liquid to inner tube 2, and check valve can be controlled to the supply of target practice liquid.
Preferably, with reference to shown in Fig. 2, in one or more embodiments of the present invention, external bushing 3 and first boss 21
Between for platform bore coordinate.More specifically, but the present invention be not limited thereto, one end of external bushing 3 is inner conical surface, in locking state
Under, inner conical surface abuts against to form sealing cooperation with first boss 21.
In a preferred embodiment, in the locked condition, the pressure of target practice liquid should be less than external bushing 3 and first boss 21
The power abutted against.
When in use, the piston cooling spray hook shooting test tool of the present invention is inserted in main oil gallery, locking switch 1 is locked
Tightly, the switch 1 that is locked of inner tube 2 drives and is axially moveable, and second boss 22 extrudes one end of external bushing 3, the ringfeder on external bushing 3
Portion 32 is extruded radially to convex to form O-ring seal, is sealed with the formation of main oil gallery inwall.Connect rising for the both sides of copper sheathing portion 31
The projection of set portion 32 just forms seal section, it is ensured that each spray hook can individually convey target practice liquid and interference-free.External bushing 3
The other end abutted against with first boss 21, the pressure that power is more than conveyed high pressure target practice liquid is abutted, so that hydraulic pressure will not be by
The external bushing 3 and first boss 21 of abutting are separated, and automatic-sealed leakproof is formed.
It is foregoing to the present invention specific illustrative embodiment description be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles and its reality of the present invention should
With so that those skilled in the art can realize and using the present invention a variety of exemplaries and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (7)
1. a kind of piston cooling spray hook shooting test tool, it is used for the spray hook that target practice liquid is delivered to the main oil gallery of cylinder block,
Characterized in that, the piston cooling spray hook shooting test tool includes：
Inner tube, it is axially disposed tubular structure, and the side wall of said inner tube is provided with multiple through holes, said inner tube one end with
The adapter of target practice liquid is connected and provided with first boss, the other end for closing and provided with second boss；
External bushing, it is socketed in outside said inner tube, and the external bushing can be moved axially relatively with said inner tube, described
External bushing has：
Copper sheathing portion is connected, it can connect the through hole and spray hook；And
Ringfeder portion, it is located at the axial both sides in the connection copper sheathing portion, the ringfeder portion in a free state with the main oil gallery
Coordinate for gap；And
Locking switch, it can drive said inner tube to be axially moveable, when the locking switch is in open mode, the ringfeder
Portion is in free state；When the locking switch is in locking state, the two ends of the external bushing respectively with the first boss
Abutted against with the second boss, the ringfeder portion is extruded and radially raised formed with the main oil gallery is interference fitted.
2. piston cooling spray hook shooting test tool according to claim 1, it is characterised in that the external bushing with it is described
Bore and coordinate for platform between first boss.
3. piston cooling spray hook shooting test tool according to claim 1, it is characterised in that one end of the external bushing
For inner conical surface, in the locked condition, the inner conical surface abuts against to form sealing cooperation with the first boss.
4. piston cooling spray hook shooting test tool according to claim 1, it is characterised in that the other end of said inner tube
Closed by bolt, the head of the bolt forms the second boss.
5. piston cooling spray hook shooting test tool according to claim 1, it is characterised in that the ringfeder portion is by rubber
It is made.
6. piston cooling spray hook shooting test tool according to claim 1, it is characterised in that in the target practice liquid adapter
Provided with check valve.
7. piston cooling spray hook shooting test tool according to claim 1, it is characterised in that in the locked condition, institute
The pressure for stating target practice liquid is less than the power that the external bushing is abutted against with the first boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510669688.7A CN105181004B (en) | 2015-10-15 | 2015-10-15 | Piston cooling spray hook shooting test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510669688.7A CN105181004B (en) | 2015-10-15 | 2015-10-15 | Piston cooling spray hook shooting test tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105181004A CN105181004A (en) | 2015-12-23 |
| CN105181004B true CN105181004B (en) | 2017-10-03 |
Family
ID=54903251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510669688.7A Active CN105181004B (en) | 2015-10-15 | 2015-10-15 | Piston cooling spray hook shooting test tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105181004B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706325B (en) * | 2016-12-30 | 2022-04-22 | 广西玉柴机器股份有限公司 | Inspection device for manual target shooting of oil duct spray hook |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5881684A (en) * | 1997-07-21 | 1999-03-16 | Bontaz Centre, Societe Anonyme | Interference fit cooling spray nozzle |
| US7823545B2 (en) * | 2007-08-17 | 2010-11-02 | Gm Global Technology Operations, Inc. | Piston squirter system and method |
| CN201103447Y (en) * | 2007-12-06 | 2008-08-20 | 中国重汽集团济南技术中心有限公司 | Cooling nozzle assembly of diesel engine |
| CN201635815U (en) * | 2009-12-30 | 2010-11-17 | 绵阳新晨动力机械有限公司 | Cooling nozzle of engine piston |
| CN202645703U (en) * | 2012-07-05 | 2013-01-02 | 东风汽车公司 | Piston cooling nozzle with boss type sealing face structure |
| DK177669B1 (en) * | 2012-09-25 | 2014-02-10 | Hans Jensen Lubricators As | Injection nozzle for use in oil injection of oil for lubrication of cylinders in larger engines and use thereof |
| CN204988335U (en) * | 2015-10-15 | 2016-01-20 | 广西玉柴机器股份有限公司 | Hook target practice test instrument is spouted in piston cooling |
-
2015
- 2015-10-15 CN CN201510669688.7A patent/CN105181004B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105181004A (en) | 2015-12-23 |
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