CN109079463A - Diesel valve rocker arm bush dismantling device and method - Google Patents
Diesel valve rocker arm bush dismantling device and method Download PDFInfo
- Publication number
- CN109079463A CN109079463A CN201811249840.6A CN201811249840A CN109079463A CN 109079463 A CN109079463 A CN 109079463A CN 201811249840 A CN201811249840 A CN 201811249840A CN 109079463 A CN109079463 A CN 109079463A
- Authority
- CN
- China
- Prior art keywords
- bushing
- rocker arm
- valve rocker
- new
- inner sleeve
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
Abstract
The invention discloses a kind of diesel valve rocker arm bush dismantling device and methods, including screw rod, washer, inner sleeve, housing and nut, the upper end of inner sleeve is the plectane that outer diameter is greater than Outer Diameter of lining, lower end is the downward upper cylinder in open end, in the new bushing inner hole that upper cylinder insertion needs to change, new bushing upper end is resisted against on the annular surface on the downside of plectane, and lower end is resisted against in the old bushing upper end port in valve rocker arm.Screw rod sequentially passes through the centre bore of the plectane centre bore of inner sleeve, the old bushing in valve rocker arm and housing lower end from top to bottom, and lower end is screwed with nut.The method of the present invention includes the following steps: 1) new bushing is located in fix outer and puts on, 2) it inner sleeve lower end is located in new bushing inner hole and installs screw rod, 3) rotates screw rod new bushing is pressed into the bushing mounting holes of valve rocker arm.The configuration of the present invention is simple, manufacturing cost is low, and once-through operation can complete the installation of new bushing while old bushing is removed, and significantly improves work efficiency.
Description
Technical field
It is especially a kind of for dismounting diesel valve rocker arm bush the present invention relates to a kind of maintenance tool of diesel engine
Device and method belongs to diesel engine manufacture and maintenance technique field.
Background technique
The valve rocker arm of diesel engine is controlled to control valve opening closure by the cam on camshaft, and one end is pressing against valve
Or valve crosshead, the quantity of other end connecting rocker arm mandril, valve rocker arm is different with cylinder of diesel engine number and changes, and has 10~48
It is a, as four-cycle diesel cylinder head on be provided with two valve rocker arms.When diesel engine works, rocker arm is swung frequently, for a long time
The back bush abrasion that works is larger, needs to replace in time.Since the bush hole of bushing and valve rocker arm belongs to interference fit, disassembly
When, it is general to be pulled out bushing by the way of percussion and drawing；When assembly, needing to first pass through bushing liquid nitrogen cooling makes its outer diameter
It is pressed it into rocker arm again after diminution.This method is not only time-consuming, while being also easy to damage rocker arm, influences rocker arm
It reuses；It also needs to dismount again when bushing installation is not in place, and at least needs personnel's compounding practice of two work posts,
It is also more demanding to the technical ability of operator simultaneously, to increase production or maintenance cost, extend the production cycle.
Summary of the invention
Simple, once-through operation that the object of the present invention is to provide a kind of structures can be completed at the same time old bushing dismounting and new bushing
The diesel valve rocker arm bush dismantling device and method of installation.
The present invention is achieved by the following technical programs:
A kind of diesel valve rocker arm bush dismantling device, including screw rod, washer, inner sleeve, housing and nut, the upper end of inner sleeve are
Plectane, the plectane outer diameter are greater than Outer Diameter of lining, and the lower end of inner sleeve is the downward upper cylinder in open end, upper cylinder outer diameter and
Upper cylinder height is matched with bushing inner diameter and liner height, in the new bushing inner hole that upper cylinder insertion needs to change, new bushing
Upper end is resisted against on the annular surface on the downside of plectane, and new bushing lower end is resisted against in the old bushing upper end port in valve rocker arm；Outside
Set is the upward cylinder in open end, and the bushing mounting portion of valve rocker arm is supported on the upper end of housing；Nut is fixed on housing
Bottom centre, screw rod sequentially pass through the plectane centre bore of inner sleeve, the old bushing in valve rocker arm and housing lower end from top to bottom
Centre bore, screw rod lower end are screwed with nut；Washer covers between screw head and the plectane of inner sleeve.
The purpose of the present invention can also be further realized by following technical measures.
Further, the difference of bushing inner diameter D1 and upper cylinder outside diameter d 1: D1-d1=1.5~2.5mm；Outer casing internal diameter D2
And the difference of Outer Diameter of lining d2: D2-d2=2.0~4.0mm.
Further, upper cylinder is made of copper material；The material of screw rod is 45# steel, and the 45# steel carries out Tempering and Quenching
Hardness afterwards is HB210~240.
A method of using diesel valve rocker arm bush dismantling device, comprising the following steps:
1) new bushing is located in fixed outer and puts on
Housing is fixed on bench vice or the fixed station of aperture, then valve rocker arm is placed in and is put on outside, it then will be under new bushing
End is resisted against in the old bushing upper end port in valve rocker arm after being directed at old bushing；
2) inner sleeve lower end is located in new bushing inner hole
The upper cylinder of inner sleeve is injected in new bushing inner hole, on the annular surface for being resisted against new bushing upper end on the downside of plectane, under
It holds in the old bushing upper end port being resisted against in valve rocker arm；
3) screw rod is installed
Screw rod is sequentially passed through to the plectane centre bore of inner sleeve, the center of the old bushing in valve rocker arm and housing lower end from top to bottom
Kong Hou, screw rod lower end are screwed with nut；
4) new bushing is pressed into the bushing mounting holes of valve rocker arm
Rotation clamps the spanner of screw tip turret head, screw rod rotation, and inner sleeve moves down, and the plectane of inner sleeve pushes new lining
Set, enters new bushing in the bushing mounting holes of valve rocker arm；During inner sleeve moves down, new bushing is pushed under old bushing
It moves, until new bushing is completely into the bushing mounting holes of valve rocker arm, old bushing is detached from valve rocker arm and drops into housing, thus
Complete the bushing replacement of valve rocker arm.
The configuration of the present invention is simple, only screw rod, washer, inner sleeve, housing, washer and nut totally five parts, manufacturing cost
It is low.One man operation is only needed, it is very easy to use, it does not need to avoid the occurrence of jacking block using press machine and put partially, press ram pushes
When jacking block fly out the security risk hurted sb.'s feelings.Once-through operation can complete the installation of new bushing, work efficiency while old bushing is removed
It is significantly improved, has saved installation work-hour, reduce installation cost.
The advantages and features of the present invention will be illustrated and explained by the non-limitative illustration of preferred embodiment below,
These embodiments only provide as an example referring to attached drawing.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, the present embodiment includes screw rod 1, washer 2, inner sleeve 3, housing 4 and nut 5, the upper end of inner sleeve 3 is outer
Diameter is greater than the plectane 31 of Outer Diameter of lining, and lower end is the downward upper cylinder 32 in open end, upper 12 outer diameter of cylinder and height and lining
Cover internal diameter and matched, in the present embodiment, the difference of upper cylinder outer diameter D 1 and bushing inner diameter d1 are 2mm, convenient for the upper of inner sleeve 3
Cylinder 32 injects in the new bushing 10 needed to change.New 10 upper end of bushing is resisted against on the annular surface 311 of 31 downside of plectane, lower end
It is resisted against in 20 upper end port of old bushing in valve rocker arm 30, since the area of annular surface 311 is greater than new 10 upper end end of bushing
The area of mouth, so that uniform force when new bushing 10 pushes, in addition, the inner sleeve 3 of the present embodiment uses the trade mark for the brass system of H62
At will not deform so as to cause new bushing 10 when compression moves down.Housing 4 is the upward cylinder in open end, and air valve shakes
The bushing mounting portion of arm 30 is supported on the upper end of housing 4.Nut 5 is weldingly fixed on the bottom centre of housing 4.Screw rod 1 from up to
Under sequentially pass through inner sleeve 14 lower end of plectane centre bore 312, the old bushing 20 in valve rocker arm 30 and housing centre bore 41,
Lower end is screwed with nut 5.Between the 31 of the plectane of 2 sets of the washer hexagon-heads 11 and inner sleeve 3 in screw rod, area is greater than screw rod six
The annulus area of 11 lower end of angle head can reduce the abrasion loss of the plectane 31 of 3 upper end of inner sleeve, extend the service life of inner sleeve 3.
The difference of housing 4 the internal diameter D2 and Outer Diameter of lining d2 of the present embodiment: D2-d2=3.0mm drops into convenient for old bushing 20
In the counterbore 41 of housing 4.
A kind of application method of diesel valve rocker arm bush dismantling device, comprising the following steps:
1) new bushing 10 is located on the housing 4 fixed
Housing 4 is fixed on bench vice or the fixed station of aperture, then valve rocker arm 30 is placed on housing 4, then will newly be served as a contrast
It covers in 20 upper end port of old bushing being resisted against in valve rocker arm 30 after the old bushing of 10 lower end aligneds.
2) 3 lower end of inner sleeve is located in new bushing inner hole
The upper cylinder 32 of inner sleeve 3 is injected in new bushing inner hole, new 10 upper end of bushing is made to be resisted against the annular of 31 downside of plectane
On face 311, lower end is resisted against in 20 upper end port of old bushing in valve rocker arm 30.
3) screw rod 1 is installed
Screw rod 1 is sequentially passed through into the plectane centre bore 312 of inner sleeve 3, old bushing 20 and housing 4 in valve rocker arm 30 from top to bottom
After the centre bore 41 of lower end, lower end is screwed with nut 5.
4) new bushing 10 is pressed into the bushing mounting holes 301 of valve rocker arm 30
Rotation clamps the spanner of 1 top turret head 11 of screw rod, and screw rod 1 rotates, and inner sleeve 3 moves down, under the plectane 31 of inner sleeve 3
New bushing 10 is pressed, enters new bushing 10 in the bushing mounting holes 301 of valve rocker arm 30, it is new to serve as a contrast during inner sleeve 3 moves down
Set 10 pushes old bushings 20 to move down, until new bushing 10 is completely into the bushing mounting holes 301 of valve rocker arm 30, old bushing 20
It is detached from valve rocker arm 30 to drop into housing 4, to complete the bushing replacement of valve rocker arm 30.
The present invention is other than for the installation and replacement of the bushing of valve rocker arm, moreover it can be used to other axle sleeves that need replacing
Component.
In addition to the implementation, the present invention can also have other embodiments, all to use equivalent substitution or equivalent transformation shape
At technical solution, be all fallen within the protection domain of application claims.
Claims (5)
1. a kind of diesel valve rocker arm bush dismantling device, it is characterised in that: including screw rod, washer, inner sleeve, housing and spiral shell
Mother, the upper end of inner sleeve are plectane, and the plectane outer diameter is greater than Outer Diameter of lining, and the lower end of inner sleeve is the downward upper cylinder in open end
Body, upper cylinder outer diameter and upper cylinder height are matched with bushing inner diameter and liner height；Upper cylinder insertion needs to change new
In bushing inner hole, new bushing upper end is resisted against on the annular surface on the downside of plectane, and new bushing lower end is resisted against old in valve rocker arm
In bushing upper end port；Housing is the upward cylinder in open end, and the bushing mounting portion of valve rocker arm is supported on the upper end of housing；
Nut is fixed on the bottom centre of housing, and screw rod sequentially passes through the plectane centre bore of inner sleeve, old in valve rocker arm from top to bottom
The centre bore of bushing and housing lower end, screw rod lower end are screwed with nut；Washer covers between screw head and the plectane of inner sleeve.
2. diesel valve rocker arm bush dismantling device as described in claim 1, it is characterised in that: the annular surface on the downside of plectane
Area is greater than the port annulus area of new 10 upper end of bushing.
3. diesel valve rocker arm bush dismantling device as described in claim 1, it is characterised in that: bushing inner diameter D1 and upper circle
The difference of cylinder external diameter d1: D1-d1=1.5~2.5mm；The difference of outer casing internal diameter D2 and Outer Diameter of lining d2: D2-d2=2.0~
4.0mm。
4. diesel valve rocker arm bush dismantling device as described in claim 1, it is characterised in that: upper cylinder is copper material system
At；The material of screw rod is 45# steel, and the hardness after the 45# steel progress Tempering and Quenching is HB210~240.
5. a kind of method using diesel valve rocker arm bush dismantling device as described in claim 1, it is characterised in that: packet
Include following steps:
1) new bushing is located in fixed outer and puts on
Housing is fixed on bench vice or the fixed station of aperture, then valve rocker arm is placed in and is put on outside, it then will be under new bushing
End is resisted against in the old bushing upper end port in valve rocker arm after being directed at old bushing；
2) inner sleeve lower end is located in new bushing inner hole
The upper cylinder of inner sleeve is injected in new bushing inner hole, on the annular surface for being resisted against new bushing upper end on the downside of plectane, under
It holds in the old bushing upper end port being resisted against in valve rocker arm；
3) screw rod is installed
Screw rod is sequentially passed through to the plectane centre bore of inner sleeve, the center of the old bushing in valve rocker arm and housing lower end from top to bottom
Kong Hou, screw rod lower end are screwed with nut；
4) new bushing is pressed into the bushing mounting holes of valve rocker arm
Rotation clamps the spanner of screw tip turret head, screw rod rotation, and inner sleeve moves down, and the plectane of inner sleeve pushes new lining
Set, enters new bushing in the bushing mounting holes of valve rocker arm；During inner sleeve moves down, new bushing is pushed under old bushing
It moves, until new bushing is completely into the bushing mounting holes of valve rocker arm, old bushing is detached from valve rocker arm and drops into housing, thus
Complete the bushing replacement of valve rocker arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249840.6A CN109079463A (en) | 2018-10-25 | 2018-10-25 | Diesel valve rocker arm bush dismantling device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811249840.6A CN109079463A (en) | 2018-10-25 | 2018-10-25 | Diesel valve rocker arm bush dismantling device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109079463A true CN109079463A (en) | 2018-12-25 |
Family
ID=64844165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811249840.6A Pending CN109079463A (en) | 2018-10-25 | 2018-10-25 | Diesel valve rocker arm bush dismantling device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109079463A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686890A (en) * | 2019-10-23 | 2020-01-14 | 中船动力有限公司 | On-line diesel engine air valve state detection method |
| CN114604627A (en) * | 2022-02-21 | 2022-06-10 | 英沃德智能科技(苏州)有限公司 | Graphite boat piece stuck point replacing device |
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|---|---|---|---|---|
| US20010016986A1 (en) * | 1998-02-17 | 2001-08-30 | Cosma International Inc. | Self-extruded bushing assembly and method of making the same |
| JP2003001530A (en) * | 2001-06-26 | 2003-01-08 | Komatsu Ltd | Jig for press-fitting bush |
| CN201012487Y (en) * | 2007-03-01 | 2008-01-30 | 中国石油天然气股份有限公司 | Water injection pump bushing extractor |
| CN202862137U (en) * | 2012-10-02 | 2013-04-10 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Crank pin lining extractor |
| CN203125087U (en) * | 2013-02-27 | 2013-08-14 | 上海宝钢工业技术服务有限公司 | Tool for dismantling inner bushing of large oil cylinder barrel body |
| CN205310158U (en) * | 2016-01-25 | 2016-06-15 | 无锡职业技术学院 | Simple and convenient connecting rod axle sleeve assembly and disassembly tools |
| CN106994660A (en) * | 2016-01-26 | 2017-08-01 | 福特全球技术公司 | Replacing instrument for driving yoke bushing |
| CN206475134U (en) * | 2017-02-14 | 2017-09-08 | 北京福田戴姆勒汽车有限公司 | Bushing dismounting instrument |
| CN209035902U (en) * | 2018-10-25 | 2019-06-28 | 中船动力有限公司 | Diesel valve rocker arm bush dismantling device |
-
2018
- 2018-10-25 CN CN201811249840.6A patent/CN109079463A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010016986A1 (en) * | 1998-02-17 | 2001-08-30 | Cosma International Inc. | Self-extruded bushing assembly and method of making the same |
| JP2003001530A (en) * | 2001-06-26 | 2003-01-08 | Komatsu Ltd | Jig for press-fitting bush |
| CN201012487Y (en) * | 2007-03-01 | 2008-01-30 | 中国石油天然气股份有限公司 | Water injection pump bushing extractor |
| CN202862137U (en) * | 2012-10-02 | 2013-04-10 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Crank pin lining extractor |
| CN203125087U (en) * | 2013-02-27 | 2013-08-14 | 上海宝钢工业技术服务有限公司 | Tool for dismantling inner bushing of large oil cylinder barrel body |
| CN205310158U (en) * | 2016-01-25 | 2016-06-15 | 无锡职业技术学院 | Simple and convenient connecting rod axle sleeve assembly and disassembly tools |
| CN106994660A (en) * | 2016-01-26 | 2017-08-01 | 福特全球技术公司 | Replacing instrument for driving yoke bushing |
| CN206475134U (en) * | 2017-02-14 | 2017-09-08 | 北京福田戴姆勒汽车有限公司 | Bushing dismounting instrument |
| CN209035902U (en) * | 2018-10-25 | 2019-06-28 | 中船动力有限公司 | Diesel valve rocker arm bush dismantling device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686890A (en) * | 2019-10-23 | 2020-01-14 | 中船动力有限公司 | On-line diesel engine air valve state detection method |
| CN110686890B (en) * | 2019-10-23 | 2021-08-27 | 中船动力有限公司 | On-line diesel engine air valve state detection method |
| CN114604627A (en) * | 2022-02-21 | 2022-06-10 | 英沃德智能科技(苏州)有限公司 | Graphite boat piece stuck point replacing device |
| CN114604627B (en) * | 2022-02-21 | 2024-03-12 | 英沃德智能科技(苏州)有限公司 | Graphite boat piece stuck point replacement device |
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