CN203330970U - Diesel engine camshaft bush press fitting device - Google Patents
Diesel engine camshaft bush press fitting device Download PDFInfo
- Publication number
- CN203330970U CN203330970U CN2013203899710U CN201320389971U CN203330970U CN 203330970 U CN203330970 U CN 203330970U CN 2013203899710 U CN2013203899710 U CN 2013203899710U CN 201320389971 U CN201320389971 U CN 201320389971U CN 203330970 U CN203330970 U CN 203330970U
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- China
- Prior art keywords
- camshaft
- bush
- depression bar
- hole
- diesel engine
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a diesel engine camshaft bush press fitting device. The diesel engine camshaft bush press fitting device comprises a compression bar and a limiting stick. One end of the compression rod is provided with a bush plug, wherein a pressing block is arranged on the side face of the bush plug, and a bush pre-positioning spring steel ball mechanism is arranged in the pressing block. The other end of the compression rod is provided with a stop protrusion which protrudes in the radial direction. The side face of the compression rod is provided with a guide groove in the axial direction, and the guide groove and a steel ball of the bush pre-positioning spring steel ball mechanism are located at the same position of a circumferential generatrix of the compression rod. The limiting stick penetrates into an inclined oil hole from the top of a first gear of a camshaft hole and falls into the guide groove of the compression rod to position the circumferential position of the compression rod in the camshaft hole, and the inclined oil hole is made to be aligned with the guide groove. When the diesel engine camshaft bush press fitting device is used for press fitting a camshaft bush, the compression rod directly penetrates into the camshaft hole, and meanwhile, the limiting stick penetrates into the inclined oil hole which penetrates through a main shaft hole and the camshaft hole from the top of the main shaft hole and is inserted into the guide groove of the compression rod, so that the compression rod is positioned in the circumferential direction. The positioning operation is simple and high in accuracy, and the press fitting efficiency is high.
Description
Technical field
The utility model relates to engine art, particularly a kind of press mounting of camshaft bush of diesel engine device.
Background technology
The cam shaft bush of diesel engine, as the vitals of Valve Gear of Diesel, when mounted, require the necessary accurate and effective in its position, make bushing oil hole and run through the inclined oil hole of air (hereinafter to be referred as inclined oil hole of air) of spindle hole with camshaft hole and align, unobstructed to guarantee the diesel lubrication oil circuit.
The installation of prior art to cam shaft bush, when diesel engine small lot or trial-production production, usually adopt the press-loading apparatus manually-operated to realize, as depicted in figs. 1 and 2, this press-loading apparatus comprises: depression bar 1 and fairlead 2, wherein, depression bar 1 is for press-fiting lining, its left end has lining plug 11, the side of lining plug 11 is provided with briquetting 12, be provided with spring in briquetting 12, and tighten by screw, steel ball 13 is fitted in briquetting 12, during nature, spring is by steel ball 13 jack-up, make steel ball 13 parts protrude briquetting 12 surfaces, when cam shaft bush is inserted into lining plug 11, realize the cam shaft bush pre-determined bit, the right-hand member of depression bar 1 offers gathering sill 14 and stopper protrusion 15.Fairlead 2 is for the depression bar 1 that leads, and its inwall axially offers gathering sill 21.
It is as follows that cam shaft bush press-fits process:
The fairlead 2 that at first, by bolt, will be provided with gathering sill be fixed on cylinder block front end face or rear end face (now the gathering sill of fairlead and between the inclined oil hole of air of camshaft hole relative position fix).Then, depression bar 1 is penetrated to fairlead, the gathering sill 14 of depression bar 1 afterbody coordinates with the gathering sill 21 on fairlead by feather key 22, to complete guiding (as shown in Figure 1).Then, the cam shaft bush pre-determined bit, at depression bar lining plug 11, is rotated with the restriction lining, make lining realize the circumferencial direction location.Finally, manually beat the depression bar afterbody, and spacing by stopper protrusion 15, finally make bushing oil hole alignment inclined oil hole of air, complete lining and install.
Prior art need to utilize fairlead to realize depression bar circumferencial direction location, thereby guarantees that bushing oil hole aligns with inclined oil hole of air, and it has following shortcoming:
Because fairlead need be fixed on cylinder block front end face or rear end face, and difference cylinder body front/rear end screwhole position changes greatly, makes guide sleeve structure design randomness large, uncontrollable, makes depression bar circumferencial direction positioning action complexity, and impact press-fits efficiency.
In addition, for guaranteeing the guiding quality, the guide sleeve structure design is more solid, also heavier, and often press-fits a part, and manually fairlead of installing/dismounting, time-consuming hard, inefficiency.Fairlead is separate part, need to manufacture and design, and has also increased manufacturing cost.
The utility model content
The utility model is in order to overcome defect in above-mentioned prior art, provides a kind of rational in infrastructure, and positioning action is simple, precision is high, press-fits efficiency high, the press mounting of camshaft bush of diesel engine device of low cost of manufacture.
For achieving the above object, provide a kind of press mounting of camshaft bush of diesel engine device according to the utility model, comprising:
Depression bar, an end has the lining plug, and the side of lining plug is provided with briquetting, is provided with lining pre-determined bit spring steel ball mechanism in briquetting, and the other end has the stopper protrusion of radial protrusion; The side axial of depression bar offers gathering sill, and the steel ball of gathering sill and lining spring steel ball is in the same circumference bus of depression bar position;
Limit stick, it penetrates inclined oil hole of air from first grade of top of camshaft hole, and falls into the gathering sill of depression bar, and the circumferential position to depression bar in camshaft hole positions, and makes inclined oil hole of air align gathering sill.
In technique scheme, while press-fiting, treat that the bushing oil hole of camshaft lining aligns and fall into steel ball, to realize the pre-determined bit to cam shaft bush.
In technique scheme, stopper protrusion is a plurality of, is distributed on depression bar side circumference.
In technique scheme, stopper protrusion is three, is distributed on depression bar upside circumference.
In technique scheme, gathering sill is the cross section rectangular channel.
Compared with prior art, the utlity model has following beneficial effect: this press mounting of camshaft bush of diesel engine apparatus structure is reasonable, without fairlead, during the camshaft lining, directly depression bar is pierced into to camshaft hole, limit stick is pierced into to the inclined oil hole of air that runs through spindle hole and camshaft hole from the spindle hole top simultaneously, and be inserted in the depression bar gathering sill, realize depression bar circumferencial direction location, this method has replaced prior art need use fairlead to carry out the defect of depression bar circumferential registration well, positioning action is simple, precision is high, press-fit efficiency high, and omitted fairlead, reduced manufacturing cost.
The accompanying drawing explanation
The structural representation that Fig. 1 is existing diesel cam shaft bush press-loading apparatus;
The pressure rod structure schematic diagram that Fig. 2 is existing diesel cam shaft bush press-loading apparatus;
The perspective view that Fig. 3 is press mounting of camshaft bush of diesel engine device of the present utility model;
The main TV structure schematic diagram that Fig. 4 is press mounting of camshaft bush of diesel engine device of the present utility model;
Fig. 5 is the structural representation for the treatment of the camshaft lining of the present utility model;
The use status architecture schematic diagram that Fig. 6 is press mounting of camshaft bush of diesel engine device of the present utility model;
The sectional structure schematic diagram of the A-A direction that Fig. 7 is Fig. 6;
The B section structure for amplifying schematic diagram that Fig. 8 is Fig. 7.
The specific embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of the specific embodiment.It will be appreciated that, mentioned in following embodiment of the present utility model " on ", D score, " left side ", " right side ", " front " and " reverse side " all take the direction shown in each figure as benchmark, these words that are used for limiting direction are only for convenience of explanation, do not represent the restriction to the concrete technical scheme of the utility model.
Press mounting of camshaft bush of diesel engine apparatus structure of the present utility model is reasonable, without fairlead, during the camshaft lining, directly depression bar is pierced into to camshaft hole, limit stick is pierced into to the inclined oil hole of air that runs through spindle hole and camshaft hole from the spindle hole top simultaneously, and be inserted in the depression bar gathering sill, realize depression bar circumferencial direction location, this method has replaced prior art need use fairlead to carry out the defect of depression bar circumferential registration well, positioning action is simple, precision is high, press-fit efficiency high, and omitted fairlead, reduced manufacturing cost.
As shown in Figure 3 and Figure 4, the concrete structure of this press mounting of camshaft bush of diesel engine device comprises: depression bar 3 and limit stick 4, depression bar 3 is for press-fiting lining, its left end has lining plug 31, the side of lining plug 31 is provided with briquetting 32, be provided with spring in briquetting 32, and tighten by screw, steel ball 33 is fitted in briquetting 32, during nature, spring is by steel ball 33 jack-up, make steel ball 33 parts protrude briquetting 32 surfaces, when cam shaft bush 5(as shown in Figure 5) while being inserted into lining plug 31, realize the cam shaft bush pre-determined bit; The right-hand member of depression bar 3 has the stopper protrusion 34 of radial protrusion, by fitting with cylinder block front end face 61 or cylinder block rear end face 62, restriction depression bar 3 is in the degree of depth that moves axially of camshaft hole, stopper protrusion 34 and steel ball 33 apart from size, equal inclined oil hole of air 63 to cylinder block front end face 61 or cylinder block rear end face 62 apart from size.Stopper protrusion 34 is three, is distributed on depression bar 3 upside circumference.
The side axial of depression bar 3 offers gathering sill 35, and gathering sill 35 is with steel ball 33 in the same circumference bus of depression bar 3 position, and while press-fiting with assurance, bushing oil hole aligns inclined oil hole of air.
Before cam shaft bush 5 is installed, the inclined oil hole of air 63 that runs through spindle hole and camshaft hole has processed, and makes cylinder block bottom surface (as shown in Figure 6) vertically upward; Depression bar 3 is penetrated to first grade 67 of camshaft hole from cylinder block front end face 61, and lining plug 31 retains certain distance (as shown in Figure 6) with camshaft hole second gear 68; Limit stick 4 is penetrated to inclined oil hole of air 63 from first grade of 67 top of camshaft hole, rotate depression bar 3, the gathering sill 35(that makes limit stick 4 fall into depression bar 3 as shown in Figure 6 and Figure 8); Cam shaft bush 5 is inserted in to lining plug 31, and rotating cam neck bush 5, make bushing oil hole 51 align and fall into steel ball 33, now completes the pre-determined bit of cam shaft bush 5; Use "painted-face" character in opera to beat depression bar 3 right-hand member afterbodys by suitable dynamics, make the stopper protrusion 34 laminating cylinder block front end faces 61 of depression bar 3; Remove limit stick 4, depression bar 3 is pulled out to cylinder block, complete the installation of camshaft hole second gear 68 cam shaft bushes 5.As shown in Figure 7, now bushing oil hole 51 aligns inclined oil hole of air 63 to view after cam shaft bush 5 press-fits well.
To sum up, this press mounting of camshaft bush of diesel engine apparatus structure is reasonable, without fairlead, during the camshaft lining, directly depression bar is pierced into to camshaft hole, limit stick is pierced into to the inclined oil hole of air that runs through spindle hole and camshaft hole from the spindle hole top simultaneously, and be inserted in the depression bar gathering sill, realize depression bar circumferencial direction location, this method has replaced prior art need use fairlead to carry out the defect of depression bar circumferential registration well, and positioning action is simple, precision is high, press-fits efficiency high, and omitted fairlead, reduced manufacturing cost.
Above disclosed be only several specific embodiment of the present utility model, still, the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (5)
1. a press mounting of camshaft bush of diesel engine device, is characterized in that, comprising:
Depression bar, an end has the lining plug, and the side of described lining plug is provided with briquetting, is provided with lining pre-determined bit spring steel ball mechanism in described briquetting, and the other end has the stopper protrusion of radial protrusion; The side axial of depression bar offers gathering sill, and the steel ball of described gathering sill and lining spring steel ball is in the same circumference bus of depression bar position;
Limit stick, it penetrates inclined oil hole of air from first grade of top of camshaft hole, and falls into the gathering sill of depression bar, and the circumferential position to depression bar in camshaft hole positions, and makes inclined oil hole of air align gathering sill.
2. press mounting of camshaft bush of diesel engine device according to claim 1, is characterized in that: while press-fiting, treat that the bushing oil hole of camshaft lining aligns and fall into steel ball, to realize the pre-determined bit to cam shaft bush.
3. press mounting of camshaft bush of diesel engine device according to claim 1, it is characterized in that: described stopper protrusion is a plurality of, is distributed on depression bar side circumference.
4. press mounting of camshaft bush of diesel engine device according to claim 3, it is characterized in that: described stopper protrusion is three, is distributed on depression bar upside circumference.
5. according to the described press mounting of camshaft bush of diesel engine device of any one in claim 1 to 4, it is characterized in that: described gathering sill is the cross section rectangular channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203899710U CN203330970U (en) | 2013-07-02 | 2013-07-02 | Diesel engine camshaft bush press fitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203899710U CN203330970U (en) | 2013-07-02 | 2013-07-02 | Diesel engine camshaft bush press fitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203330970U true CN203330970U (en) | 2013-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203899710U Withdrawn - After Issue CN203330970U (en) | 2013-07-02 | 2013-07-02 | Diesel engine camshaft bush press fitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203330970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395043A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Press fitting device of cam shaft bush of diesel engine |
-
2013
- 2013-07-02 CN CN2013203899710U patent/CN203330970U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395043A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Press fitting device of cam shaft bush of diesel engine |
| CN103395043B (en) * | 2013-07-02 | 2015-08-05 | 广西玉柴机器股份有限公司 | Press mounting of camshaft bush of diesel engine device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131211 Effective date of abandoning: 20150805 |
|
| RGAV | Abandon patent right to avoid regrant |