CN209035902U - Diesel valve rocker arm bush dismantling device - Google Patents
Diesel valve rocker arm bush dismantling device Download PDFInfo
- Publication number
- CN209035902U CN209035902U CN201821732821.4U CN201821732821U CN209035902U CN 209035902 U CN209035902 U CN 209035902U CN 201821732821 U CN201821732821 U CN 201821732821U CN 209035902 U CN209035902 U CN 209035902U
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- CN
- China
- Prior art keywords
- bushing
- rocker arm
- valve rocker
- inner sleeve
- plectane
- 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.)
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Abstract
The utility model discloses a kind of diesel valve rocker arm bush dismantling devices, 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, the lower end of inner sleeve is the downward upper cylinder in open end, in the new bushing inner hole that the cylinder insertion of inner sleeve 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 utility model structure is simple, and 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 lining the utility model relates to a kind of maintenance tool of diesel engine
The device of set 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.
Utility model content
The purpose of the utility model is to provide a kind of structures simply, once-through operation can be completed at the same time old bushing dismounting and new
The diesel valve rocker arm bush dismantling device and method of bushing installation.
The utility model 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, inner sleeve it is upper
End is 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, outside upper cylinder
Diameter and upper cylinder height are matched with bushing inner diameter and liner height, in the new bushing inner hole that upper cylinder insertion needs to change, newly
Bushing upper end is resisted against on the annular surface on the downside of plectane, and new bushing lower end is resisted against the old bushing upper end port in valve rocker arm
On；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 outer
The bottom centre of set, screw rod are sequentially passed through from top to bottom under the plectane centre bore of inner sleeve, old bushing and housing in valve rocker arm
The centre bore at end, screw rod lower end are screwed with nut；Washer covers between screw head and the plectane of inner sleeve.
The purpose of this utility model 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.
The utility model structure is simple, only screw rod, washer, inner sleeve, housing, washer and nut totally five parts, manufacture
It is at low cost.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
Jacking block flies out the security risk hurted sb.'s feelings when pushing.Once-through operation can complete the installation of new bushing while old bushing is removed,
Work efficiency is significantly improved, and has saved installation work-hour, reduces installation cost.
The advantages of the utility model and feature will carry out diagram reconciliation by the non-limitative illustration of preferred embodiment below
It releases, these embodiments, is only provided as an example referring to attached drawing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying 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.
The course of work of the utility model is as follows:
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
It is resisted against in 20 upper end port of old bushing in valve rocker arm 30 after the old bushing of new 10 lower end aligned of bushing.
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 31 downside of plectane
On annular surface 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 3,20 and of old bushing in valve rocker arm 30 from top to bottom
After the centre bore 41 of 4 lower end of housing, 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, the plectane of inner sleeve 3
31 push new bushing 10, enter new bushing 10 in the bushing mounting holes 301 of valve rocker arm 30, during inner sleeve 3 moves down,
New bushing 10 pushes old bushing 20 to move down, until new bushing 10 is completely into the bushing mounting holes 301 of valve rocker arm 30, old lining
20 disengaging valve rocker arm 30 of set is dropped into housing 4, to complete the bushing replacement of valve rocker arm 30.
The utility model is other than for the installation and replacement of the bushing of valve rocker arm, moreover it can be used to other to need replacing axis
The component of set.
In addition to the implementation, the utility model can also have other embodiments, all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, is all fallen in the protection scope of the requires of the utility model.
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.
5. diesel valve rocker arm bush dismantling device as described in claim 1, it is characterised in that: the material of screw rod is 45#
Steel, it is HB210~240 that the 45# steel, which carries out the hardness after Tempering and Quenching,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821732821.4U CN209035902U (en) | 2018-10-25 | 2018-10-25 | Diesel valve rocker arm bush dismantling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821732821.4U CN209035902U (en) | 2018-10-25 | 2018-10-25 | Diesel valve rocker arm bush dismantling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209035902U true CN209035902U (en) | 2019-06-28 |
Family
ID=67039516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821732821.4U Active CN209035902U (en) | 2018-10-25 | 2018-10-25 | Diesel valve rocker arm bush dismantling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209035902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079463A (en) * | 2018-10-25 | 2018-12-25 | 中船动力有限公司 | Diesel valve rocker arm bush dismantling device and method |
-
2018
- 2018-10-25 CN CN201821732821.4U patent/CN209035902U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079463A (en) * | 2018-10-25 | 2018-12-25 | 中船动力有限公司 | Diesel valve rocker arm bush dismantling device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province, 212002 Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |