CN107971701A - Diesel engine purifies the manufacturing process of tapping equipment camshaft - Google Patents
Diesel engine purifies the manufacturing process of tapping equipment camshaft Download PDFInfo
- Publication number
- CN107971701A CN107971701A CN201711144208.0A CN201711144208A CN107971701A CN 107971701 A CN107971701 A CN 107971701A CN 201711144208 A CN201711144208 A CN 201711144208A CN 107971701 A CN107971701 A CN 107971701A
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- China
- Prior art keywords
- green body
- body part
- shelves
- crude green
- eccentric cam
- 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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Classifications
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/02—Camshafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention discloses a kind of manufacturing process of diesel engine purification tapping equipment camshaft, the step of technique are as follows：(a) die-casting blank, makes on blank by being sequentially formed with left bearing shelves crude green body part, gear shelves crude green body part, left eccentric cam crude green body part, cam of injection pump crude green body part, right eccentric cam crude green body part and right bearing shelves part from left to right；(b) roughing is carried out to left bearing shelves crude green body part, gear shelves crude green body part and right bearing shelves part respectively, forms left bearing shelves and treat that finishing portions, gear shelves treat that finishing portions and right bearing shelves treat finishing portions；(c) work in-process in the heart, is respectively rough milled and finish-milling the cylindrical of left eccentric cam crude green body part, cam of injection pump crude green body part and right eccentric cam crude green body part successively.The technique during control inlet valve and air outlet valve, can suck the exhaust gas of a part by the camshaft that it is manufactured, so as to reduce pollution of the exhaust gas to air and add the thermal efficiency of diesel engine.
Description
Technical field
The present invention relates to a kind of manufacturing process of diesel engine purification tapping equipment camshaft.
Background technology
At present, diesel engine discharges exhaust gas, but the diesel oil in diesel engine has burning not from inlet valve air inlet from air outlet valve
The pernicious gas such as sufficient situation, the carbon monoxide of not sufficiently combusted generation, hydrocarbon, oxynitrides drains into air
In, harm not only was produced to human body, animals and plants or even the Nature, but also waste diesel oil.
The content of the invention
The technical problems to be solved by the invention are the defects of overcoming the prior art, there is provided a kind of diesel engine purification discharge dress
Put the manufacturing process with camshaft, the technique by the camshaft that it manufacture during inlet valve and air outlet valve is controlled, energy
The exhaust gas of enough suction parts, so as to reduce pollution of the exhaust gas to air and add the thermal efficiency of diesel engine.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of diesel engine purifies tapping equipment cam
The step of manufacturing process of axis, technique, is as follows：
(a) die-casting blank, makes on blank by being sequentially formed with left bearing shelves crude green body part, gear shelves crude green body portion from left to right
Point, left eccentric cam crude green body part, cam of injection pump crude green body part, right eccentric cam crude green body part and right bearing shelves part；
(b) roughing is carried out to left bearing shelves crude green body part, gear shelves crude green body part and right bearing shelves part respectively, is formed
Left bearing shelves treat that finishing portions, gear shelves treat that finishing portions and right bearing shelves treat finishing portions；
(c) work in-process in the heart, respectively to left eccentric cam crude green body part, cam of injection pump crude green body part and right eccentric cam
The cylindrical of crude green body part is rough milled and finish-milling successively, forms left eccentric cam just part, cam of injection pump and right eccentric cam；Its
In, cam of injection pump is used to drive oil pump to act, and right eccentric cam is used for the aperture for coordinating control inlet valve with inlet valve tappet；
(d) respectively left bearing shelves are treated with finishing portions, gear shelves treat finishing portions and the right bearing Dang Dai finishings Ministry of worker
Divide and finished, form left bearing shelves, gear shelves and right bearing shelves, keyseat is carried out to gear shelves；
(e) camshaft overall length is controlled, camshaft overall length is met the requirements；
(f) to the processing of camshaft case hardness, case hardness is made to reach 53~63HRC；
(g) portion is outwards increased between the generating circle portion of part at the beginning of left eccentric cam and the joining place of convex portion and the peak of convex portion
Point, and be in shelving milling, so as to form left eccentric cam；Wherein, left eccentric cam is used to coordinate with air outlet valve tappet and controls out
The aperture of valve, the Elevated section on left eccentric cam form that when air outlet valve tappet is in contact with it air outlet valve can open is certain
Aperture so that exhaust gas suction exhaust gas suction control block.
After employing above-mentioned technical proposal, the joining place and convex portion of left eccentric cam of the invention in generating circle portion and convex portion
Outwards increasing between peak has exhaust gas to suck control block, and originally in the rotary course of camshaft, left eccentric cam is herein
When being contacted with air outlet valve tappet, air outlet valve is full-shut position, and after increasing and having discarded suction control block, when exhaust gas sucks control block
When being contacted with air outlet valve tappet, air outlet valve is provided with certain aperture, so that exhaust gas can carry out second-time burning in suction chamber,
So as to reduce pollution of the exhaust gas to air and add the thermal efficiency of diesel engine.
Brief description of the drawings
Fig. 1 is that the diesel engine of the present invention purifies the connection of tapping equipment camshaft and inlet valve tappet and exhaust valve lifter
Schematic diagram；
Fig. 2 is the structure diagram of the right eccentric cam of the present invention；
Fig. 3 is the structure diagram of the left eccentric cam of the present invention.
Embodiment
In order that the present invention can be more clearly and readily understood, it is right below according to specific embodiment and with reference to attached drawing
The present invention is described in further detail.
As shown in Figures 1 to 3, a kind of the step of manufacturing process of diesel engine purification tapping equipment camshaft, technique, is as follows：
(a) die-casting blank, makes on blank by being sequentially formed with left bearing shelves crude green body part, gear shelves crude green body portion from left to right
Point, left eccentric cam crude green body part, cam of injection pump crude green body part, right eccentric cam crude green body part and right bearing shelves part；
(b) roughing is carried out to left bearing shelves crude green body part, gear shelves crude green body part and right bearing shelves part respectively, is formed
Left bearing shelves treat that finishing portions, gear shelves treat that finishing portions and right bearing shelves treat finishing portions；
(c) work in-process in the heart, respectively to left eccentric cam crude green body part, cam of injection pump crude green body part and right eccentric cam
The cylindrical of crude green body part is rough milled and finish-milling successively, forms left eccentric cam just part, cam of injection pump 1 and right eccentric cam 2；Its
In, cam of injection pump 1 is used to drive oil pump to act, and right eccentric cam 2 is used for the aperture for coordinating control inlet valve with inlet valve tappet；
(d) respectively left bearing shelves are treated with finishing portions, gear shelves treat finishing portions and the right bearing Dang Dai finishings Ministry of worker
That divides finish, and forms left bearing shelves 3, gear shelves 4 and right bearing shelves 5, and keyseat 41 is carried out to gear shelves 4；Wherein, it is left
The processing of bearing guard, gear shelves and right bearing shelves includes the processing of periphery and the processing in retaining wall face.
(e) camshaft overall length is controlled, camshaft overall length is met the requirements；
(f) to the processing of camshaft case hardness, case hardness is made to reach 53~63HRC；
(g) to additional between the peak 62 of the joining place 61 and convex portion of the generating circle portion of part at the beginning of left eccentric cam and convex portion
High part, and be in shelving milling, so as to form left eccentric cam 6；Wherein, left eccentric cam 6 is used to match somebody with somebody with air outlet valve tappet 10
The aperture of control air outlet valve is closed, the Elevated section on left eccentric cam 6 is formed and can used when air outlet valve tappet 10 is in contact with it
Valve opens certain aperture, so that the exhaust gas suction control block 63 of exhaust gas suction.
The operation principle of the present invention is as follows：
The left eccentric cam 6 of the present invention is between the peak 62 of the joining place 61 and convex portion of generating circle portion and convex portion to additional
Height have exhaust gas suck control block 63, originally in the rotary course of camshaft, left eccentric cam 6 herein with air outlet valve tappet 10
During contact, air outlet valve is full-shut position, and after increasing and having discarded suction control block 63, when exhaust gas sucks control block 63 and air outlet valve
When tappet 10 contacts, air outlet valve is provided with certain aperture, so that exhaust gas can carry out second-time burning, so as to subtract in suction chamber
Lack pollution of the exhaust gas to air and add the thermal efficiency of diesel engine.
Particular embodiments described above, pair present invention solves the technical problem that, technical solution and beneficial effect carry out
It is further described, it should be understood that the foregoing is merely the specific embodiment of the present invention, is not limited to this
Invention, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done, should be included in this hair
Within bright protection domain.
Claims (1)
1. the manufacturing process of a kind of diesel engine purification tapping equipment camshaft, it is characterised in that the step of technique is as follows：
(a) die-casting blank, makes on blank by being sequentially formed with left bearing shelves crude green body part, gear shelves crude green body part, a left side from left to right
Eccentric cam crude green body part, cam of injection pump crude green body part, right eccentric cam crude green body part and right bearing shelves part；
(b) roughing is carried out to left bearing shelves crude green body part, gear shelves crude green body part and right bearing shelves part respectively, forms left axle
Hold shelves and treat that finishing portions, gear shelves treat that finishing portions and right bearing shelves treat finishing portions；
(c) work in-process in the heart, respectively to left eccentric cam crude green body part, cam of injection pump crude green body part and right eccentric cam crude green body
It is partial it is cylindrical rough milled successively and finish-milling, form left eccentric cam just part, cam of injection pump (1) and right eccentric cam (2)；Its
In, cam of injection pump (1) is used to drive oil pump to act, and right eccentric cam (2) is used to coordinate control air inlet with inlet valve tappet (20)
The aperture of door；
(d) left bearing shelves are treated respectively finishing portions, gear shelves treat finishing portions and right bearing shelves treat finishing portions into
Row finishing, forms left bearing shelves (3), gear shelves (4) and right bearing shelves (5), and keyseat (41) is carried out to gear shelves (4)；
(e) camshaft overall length is controlled, camshaft overall length is met the requirements；
(f) to the processing of camshaft case hardness, case hardness is made to reach 53~63HRC；
(g) to additional between the peak (62) of the joining place (61) and convex portion of the generating circle portion of part at the beginning of left eccentric cam and convex portion
High part, and be in shelving milling, so as to form left eccentric cam (6)；Wherein, left eccentric cam (6) is used for and air outlet valve tappet
(10) aperture of control air outlet valve is coordinated, the Elevated section on left eccentric cam (6) is formed when air outlet valve tappet (10) connects with it
Air outlet valve can be made to open certain aperture when tactile, so that the exhaust gas suction control block (63) of exhaust gas suction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144208.0A CN107971701A (en) | 2017-11-17 | 2017-11-17 | Diesel engine purifies the manufacturing process of tapping equipment camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144208.0A CN107971701A (en) | 2017-11-17 | 2017-11-17 | Diesel engine purifies the manufacturing process of tapping equipment camshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107971701A true CN107971701A (en) | 2018-05-01 |
Family
ID=62010323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711144208.0A Pending CN107971701A (en) | 2017-11-17 | 2017-11-17 | Diesel engine purifies the manufacturing process of tapping equipment camshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107971701A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201535182U (en) * | 2009-10-09 | 2010-07-28 | 潍坊盛瑞动力机械科技有限公司 | Diesel engine cam shaft |
| CN201723260U (en) * | 2010-06-12 | 2011-01-26 | 常柴股份有限公司 | Cam shaft for recycling waste gas in diesel engine cylinder |
| CN102079037A (en) * | 2009-11-30 | 2011-06-01 | 望城白若机械厂 | Mechanical processing method of cam shaft of diesel engine |
| US20140013739A1 (en) * | 2012-07-12 | 2014-01-16 | GM Global Technology Operations LLC | Engine including camshaft with lobe features for internal exhaust gas recirculation |
-
2017
- 2017-11-17 CN CN201711144208.0A patent/CN107971701A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201535182U (en) * | 2009-10-09 | 2010-07-28 | 潍坊盛瑞动力机械科技有限公司 | Diesel engine cam shaft |
| CN102079037A (en) * | 2009-11-30 | 2011-06-01 | 望城白若机械厂 | Mechanical processing method of cam shaft of diesel engine |
| CN201723260U (en) * | 2010-06-12 | 2011-01-26 | 常柴股份有限公司 | Cam shaft for recycling waste gas in diesel engine cylinder |
| US20140013739A1 (en) * | 2012-07-12 | 2014-01-16 | GM Global Technology Operations LLC | Engine including camshaft with lobe features for internal exhaust gas recirculation |
Non-Patent Citations (1)
| Title |
|---|
| 王亮: "16V265H 型柴油机凸轮轴制造工艺研究", 《组合机床与自动化加工技术》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180501 |
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| RJ01 | Rejection of invention patent application after publication |