CN204019076U - A kind of instrument that press-fits diesel-engine body cam shaft bush - Google Patents
A kind of instrument that press-fits diesel-engine body cam shaft bush Download PDFInfo
- Publication number
- CN204019076U CN204019076U CN201420381407.9U CN201420381407U CN204019076U CN 204019076 U CN204019076 U CN 204019076U CN 201420381407 U CN201420381407 U CN 201420381407U CN 204019076 U CN204019076 U CN 204019076U
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- CN
- China
- Prior art keywords
- press
- depression bar
- cam shaft
- shaft bush
- diesel
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of instrument that press-fits diesel-engine body cam shaft bush, comprises depression bar, spacing cutting ferrule, spring, steel ball and plug screw.Depression bar is upper and lower Step Shaft, and the interlude of depression bar is long polished rod.The axle of getting out of a predicament or an embarrassing situation of depression bar is provided with a transverse holes, and one end of transverse holes is provided with screw thread seam.Steel ball, spring are set in successively depression bar and get out of a predicament or an embarrassing situation in axle transverse holes, and are enclosed in screw thread stop portion by plug screw; Press mounting tool of the present utility model adopts Vertical Oil press to press-fit the following multi-cylinder diesel engine body cam shaft bush of four cylinders, and during diesel engine product variations, the little press mounting tool of replacing manufacturing cost can press-fit on general Vertical Oil press.The utility model is simple in structure, easy to operate, has improved widely and has press-fited work efficiency.
Description
Technical field
The utility model relates to a kind of press mounting tool, specifically a kind of instrument that press-fits diesel-engine body cam shaft bush.
Background technology
In now producing, the cam shaft bush on interior each the set gear of diesel engine multi-cylinder body is to be all accomplished by press-fiting.Yet the diesel engine product for general sizing in prior art is all to adopt horizontal special purpose machine tool to implement this to press-fit means conventionally.This special purpose machine tool not only cost is high, and the diesel-engine body that special purpose machine tool only adapts to a kind of model press-fits work, as this special purpose machine tool just seems helpless while running into the opening gear carpenters square cun and slightly change of cam shaft bush step gear of body.Prior art cannot adapt to the production development epoch that current continuous renewal is regenerated thus.
Utility model content
The deficiency existing for above-mentioned condition, the utility model provides a kind of instrument that press-fits diesel-engine body cam shaft bush.
The purpose of this utility model is achieved by the following technical programs:
Press-fit an instrument for diesel-engine body cam shaft bush, comprise spacing cutting ferrule 4, spring 5, steel ball 6 and the plug screw 7 of depression bar 3, three different lengths.
Depression bar 3 is upper and lower Step Shaft, and the interlude of depression bar 3 is long polished rod.The axle of getting out of a predicament or an embarrassing situation of depression bar 3 is provided with a transverse holes, and one end of transverse holes is provided with screw thread seam; Steel ball 6, spring 5 are set in successively depression bar 3 and get out of a predicament or an embarrassing situation in axle transverse holes, and are enclosed in screw thread stop portion by plug screw 7.
Spacing cutting ferrule 4 is semicircle bush type, and several apertures distribute in spacing cutting ferrule 4 lining cambered surfaces.The length of three spacing cutting ferrules 4 is respectively: L1, L2, L3 and L1-L2=L2-L3=d, (L3 > δ, δ is cam shaft bush thickness) wherein d be definite value, and the cam shaft bush step gear of the size of definite value d and diesel-engine body open gear apart from measure-alike.
Spacing cutting ferrule 4 inner arc radius size are identical with the radius size of depression bar 3 polished rods.Spacing cutting ferrule 4 outer arc radius size and the depression bar 3 axle radius size of topping bar is identical.
The diameter dimension of the axle of getting out of a predicament or an embarrassing situation of depression bar 3 is identical with the internal diameter size of cam shaft bush 2.The diameter dimension of depression bar 3 long polished rods is identical with the lining aperture in body 1.
Useful technique effect of the present utility model embodies in the following areas:
1. press mounting tool of the present utility model adopts Vertical Oil press to press-fit the following multi-cylinder diesel engine body cam shaft bush of four cylinders, and during diesel engine product variations, the little press mounting tool of replacing manufacturing cost can press-fit on general Vertical Oil press;
2. the utility model is simple in structure, easy to operate, has improved widely and has press-fited work efficiency.
Accompanying drawing explanation
Fig. 1 is that the utility model press-fits schematic diagram.
Fig. 2 is the utility model depression bar component diagram.
Fig. 3 is the cross-sectional view of semicircle clamp.
Sequence number in figure, 1 body, 2 cam shaft bushes, 3 depression bars, 4 spacing cutting ferrules, 5 springs, 6 steel balls, 7 plug screws.
The specific embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.
Referring to Fig. 2, a kind of instrument that press-fits diesel-engine body cam shaft bush, comprises spacing cutting ferrule 4, spring 5, steel ball 6 and the plug screw 7 of depression bar 3, three different lengths; Depression bar 3 is upper and lower Step Shaft, and the interlude of depression bar 3 is long polished rod.The axle of getting out of a predicament or an embarrassing situation of depression bar 3 is provided with a transverse holes, and one end of transverse holes is provided with screw thread seam; Steel ball 6, spring 5 are set in successively depression bar 3 and get out of a predicament or an embarrassing situation in axle transverse holes, and are enclosed in screw thread stop portion by plug screw 7.
Referring to Fig. 3, spacing cutting ferrule 4 is semicircle bush type.Its effect is that cam shaft bush is carried out to axial location, and press-fits depression bar 3 in process and do not need all to exit body, convenient to operation.
Several apertures that distribute in spacing cutting ferrule 4 lining cambered surfaces, its effect is: a, alleviate limiting card cover body weight; B, convenient operation personnel capture.
Due to cam shaft bush, to be distributed in cam shaft bush step gear in body different, and body inner camshaft lining step gear to open gear carpenters square cun be identical.According to this feature the utility model, be provided with the spacing cutting ferrule 4 of three different lengths.
The length of three spacing cutting ferrules 4 is respectively: L1, L2, L3 and L1-L2=L2-L3=d, (L3 > δ, δ is cam shaft bush thickness), wherein d is definite value, and opening of the cam shaft bush step gear of the size of definite value d and diesel-engine body kept off apart from measure-alike.Its 4 effect of three spacing cutting ferrules is the upper-lower position that the lining after press-fiting for restriction is positioned at body.
Spacing cutting ferrule 4 inner arc radius size are identical with the radius size of depression bar 3 long polished rods.Spacing cutting ferrule 4 outer arc radius size and the depression bar 3 axle radius size of topping bar is identical.
The diameter dimension of the axle of getting out of a predicament or an embarrassing situation of depression bar 3 is identical with the internal diameter size of cam shaft bush 2.The diameter dimension of depression bar 3 long polished rods is identical with the lining aperture in body 1.
The utility model is used operating process:
Embodiment:
Referring to Fig. 1.Depression bar 3 is connected on the last item of Vertical Oil press, is furnished with in advance body positioner on the workbench of hydraulic press.Body 1 is vertically placed on the work top of hydraulic press by positioner, so that the axial line in the cam shaft bush hole in body 1 and the axis parallel of depression bar 3, and the oilhole direction in cam shaft bush hole and steel ball 6 directions on depression bar 3 are consistent.
Press-fit body inner camshaft lining 2 and be generally from body the bush hole of the camshaft gear of below, press-fited one by one from the bottom to top;
The first step: first cam shaft bush 2 is enclosed within to depression bar 3 and gets out of a predicament or an embarrassing situation on axle, the axial plane that the steel ball 6 that depression bar 3 is got out of a predicament or an embarrassing situation in axle protrudes under the effect of spring 5, rotating cam neck bush 2 coincide the steel ball 6 of its bushing oil hole and protrusion, steel ball 6 is held in the mouth cam shaft bush 2, and with depression bar 3, enter the top in the hole to be pressed in body 1, in the middle of depression bar 3, segment length's polished rod is directed in the camshaft gear bush hole of top, hole to be pressed simultaneously.From L1, the L2 of three spacing cutting ferrules 4 of different length, L3, choose the spacing cutting ferrule of L3 length;
Second step: the upper plane that the lower plane of the spacing cutting ferrule of L3 length is attached to body 1, the long polished rod of the inner arc of spacing cutting ferrule 4 and depression bar 3 is close to, start hydraulic press, the last item of hydraulic press promotes depression bar 3 and moves down, when the shaft shoulder of topping bar of depression bar 3 is against the upper plane of spacing cutting ferrule 4, now the shaft shoulder of getting out of a predicament or an embarrassing situation of depression bar 3 is just concordant with the upper plane of this cam shaft bush step gear, and the bushing press-mounting of this cam shaft bush step gear is complete.Because 6 pairs of cam shaft bushes 2 of the steel ball on depression bar 3 play orientation, so can guarantee that the cam shaft bush oilhole that is pressed into body communicates with the oilhole on body;
The 3rd step: choose the spacing cutting ferrule 4 of L2 length, the cam shaft bush 2 of gear in the middle of press-fiting, by that analogy, until the bushing press-mounting in body is complete.
Claims (5)
1. an instrument that press-fits diesel-engine body cam shaft bush, is characterized in that: the spacing cutting ferrule (4), spring (5), steel ball (6) and the plug screw (7) that comprise depression bar (3), three different lengths; Described depression bar (3) is upper and lower Step Shaft, and the interlude of depression bar (3) is long polished rod; The axle of getting out of a predicament or an embarrassing situation of depression bar (3) is provided with a transverse holes, and one end of transverse holes is provided with screw thread seam; Described steel ball (6), spring (5) are set in successively depression bar (3) and get out of a predicament or an embarrassing situation in axle transverse holes, and are enclosed in screw thread stop portion by plug screw (7); Described spacing cutting ferrule (4) is semicircle bush type, and several apertures distribute in spacing cutting ferrule (4) lining cambered surface; Described spacing cutting ferrule (4) inner arc radius size is identical with the radius size of the long polished rod of depression bar (3); Described spacing cutting ferrule (4) outer arc radius size and depression bar (3) the axle radius size of topping bar is identical.
2. a kind of instrument that press-fits diesel-engine body cam shaft bush according to claim 1, is characterized in that: the diameter dimension of the axle of getting out of a predicament or an embarrassing situation of described depression bar (3) is identical with the internal diameter size of cam shaft bush (2).
3. a kind of instrument that press-fits diesel-engine body cam shaft bush according to claim 1, is characterized in that: the lining aperture in the diameter dimension of the long polished rod of described depression bar (3) and body (1) is measure-alike.
4. a kind of instrument that press-fits diesel-engine body cam shaft bush according to claim 1, it is characterized in that: the length of described three spacing cutting ferrules (4) is respectively: L1, L2, L3 and L1-L2=L2-L3=d, (L3 > δ, δ is cam shaft bush thickness), wherein d is definite value.
5. a kind of instrument that press-fits diesel-engine body cam shaft bush according to claim 4, is characterized in that: opening of the cam shaft bush step gear of the size of described definite value d and diesel-engine body keeps off apart from measure-alike.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381407.9U CN204019076U (en) | 2014-07-11 | 2014-07-11 | A kind of instrument that press-fits diesel-engine body cam shaft bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381407.9U CN204019076U (en) | 2014-07-11 | 2014-07-11 | A kind of instrument that press-fits diesel-engine body cam shaft bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204019076U true CN204019076U (en) | 2014-12-17 |
Family
ID=52058984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420381407.9U Expired - Fee Related CN204019076U (en) | 2014-07-11 | 2014-07-11 | A kind of instrument that press-fits diesel-engine body cam shaft bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204019076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719486A (en) * | 2018-12-29 | 2019-05-07 | 重庆百吉四兴压铸有限公司 | Pressure apparatus is used in a kind of bushing and case lid assembly |
| CN112706104A (en) * | 2020-11-20 | 2021-04-27 | 中国航发哈尔滨东安发动机有限公司 | Device and method for assembling bush by fitter |
-
2014
- 2014-07-11 CN CN201420381407.9U patent/CN204019076U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719486A (en) * | 2018-12-29 | 2019-05-07 | 重庆百吉四兴压铸有限公司 | Pressure apparatus is used in a kind of bushing and case lid assembly |
| CN109719486B (en) * | 2018-12-29 | 2020-05-12 | 重庆百吉四兴压铸有限公司 | Pressure device for assembling bushing and box cover |
| CN112706104A (en) * | 2020-11-20 | 2021-04-27 | 中国航发哈尔滨东安发动机有限公司 | Device and method for assembling bush by fitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20190711 |