CN105909335A - Combined type rocker arm shaft and machining method - Google Patents
Combined type rocker arm shaft and machining method Download PDFInfo
- Publication number
- CN105909335A CN105909335A CN201610400180.1A CN201610400180A CN105909335A CN 105909335 A CN105909335 A CN 105909335A CN 201610400180 A CN201610400180 A CN 201610400180A CN 105909335 A CN105909335 A CN 105909335A
- Authority
- CN
- China
- Prior art keywords
- wall
- outer tube
- rocker arm
- inner tube
- main oil
- 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
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
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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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2303/00—Manufacturing of components used in valve arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses a combined type rocker arm shaft and a machining method in order to reduce the machining difficulty and the manufacturing cost of the multi-oil-duct rocker arm shaft. The combined type rocker arm shaft is characterized by comprising an outer pipe; an inner pipe is installed in the outer pipe, and the interior of the inner pipe forms a lubricating main oil duct; the inner pipe comprises a first wall and a second wall, the first wall is a circular-arc wall which is tightly attached to the inner wall of the outer pipe, and the central angle of the circular-arc wall is larger than 180 degrees; a clearance is formed between the outer wall body of the second wall and the inner wall of the outer pipe and forms a braking main oil duct; and the two ends of the outer pipe and the two ends of the inner pipe are all provided with plugs. According to the combined type rocker arm shaft and the machining method, the inner pipe is installed in the outer pipe in an interference and pressing mode, and the inner pipe is flattened and forms the braking main oil duct; the braking main oil duct and the lubricating main oil duct naturally formed by the inner pipe together make up the rocker arm shaft of the multiple oil ducts; and the advantages of being convenient to machine and low in cost are achieved.
Description
Technical field
The present invention relates to technical field of engines, be specifically related to a kind of Combined rocking arm axle and processing method.
Background technology
Rocker arm shaft is the significant components of medium and heavy engine valve actuating mechanism, for fixing rocking arm rotary shaft and bearing valve and cam or the tappet active force to rocking arm.Owing to there is frictional contact surface between rocking arm and valve and cam or push rod, there is frictional contact surface in rocking arm and rocking arm between centers, therefore, and rocker arm shaft many employings hollow structure, leaves the oil leab lubricated to each contact surface.At present, electromotor many employings steel pipe rocker arm shaft.
Along with the development of transportation, increasing medium and heavy Diesel engine employs engine braking technology.In engine braking technology, exhaust rocker arm integrated engine compression braking system is high by its braking power, low cost of manufacture, and engine arrangement is compact waits many-sided advantage, is widely applied.In order to realize exhaust rocker arm integrated engine compression brake function, need to go out to brake main oil gallery, control for brake oil duct and exhaust rocker arm braking oil duct in the internal multi-processing of rocker arm shaft.Conventional steel pipe rocker arm shaft cannot realize this function, and the most each factory mainly uses solid shafting to carry out multi-oil-passage processing, and do so not only increases technology difficulty but also improve manufacturing cost.
Summary of the invention
In order to reduce difficulty of processing and the manufacturing cost of multi-oil-passage rocker arm shaft, the invention provides a kind of multi-oil-passage Combined rocking arm axle utilizing steel pipe to manufacture and processing method.
The technical solution used in the present invention is as follows:
A kind of Combined rocking arm axle, including outer tube, is provided with inner tube in described outer tube, the Inner Constitution lubrication main oil gallery of said inner tube；Said inner tube includes a wall and No. two walls, a described wall is the circular arc wall that the inwall with described outer tube fits tightly, the central angle of described circular arc wall is more than 180 °, has gap between outer wall and the inwall of described outer tube of described No. two walls, and described gap constitutes braking main oil gallery；Described outer tube is equipped with plug with the two ends of inner tube.
Described No. two walls are planar wall, a described wall and the junction rounding off of No. two walls.
Described plug is the bowl-type plug simultaneously blocking described outer tube with the inner tube mouth of pipe.
Described lubrication main oil gallery is provided with a upper hydraulic fluid port, and several intake rockers lubrication mouth lubricates mouth with exhaust rocker arm, and described intake rocker lubrication mouth lubricates mouth interlaced arrangement with exhaust rocker arm；Described upper hydraulic fluid port, intake rocker lubrication mouth, the outer wall of exhaust rocker arm lubrication the most through to the described outer tube of mouth.
Described lubrication main oil gallery is provided with oil-out, and described braking main oil gallery is provided with oiler and several exhaust rocker arm brake ports, and described oil-out is connected by external oil duct with oiler；The outer wall of described through to the described outer tube of exhaust rocker arm brake port.
Described external oil duct is provided with electromagnetic valve.
The processing method of a kind of Combined rocking arm axle, its step is as follows: (a) chooses the steel pipe stock as described outer tube Yu inner tube, and the external diameter of said inner tube stock is more than the internal diameter of described outer tube stock, blanking；B said inner tube stock is flattened, presses fit in described outer tube stock by ()；C () installs described plug at the two ends of described outer tube with inner tube.
The invention has the beneficial effects as follows:
The inner tube interference of the present invention is fitted in outer tube, and inner tube is crushed and forms braking main oil gallery, and the lubrication main oil gallery of inner tube self-assembling formation, constitutes the rocker arm shaft of multi-oil-passage together in addition, has easy to process, the advantage of low cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Fig. 2 is the sectional view of A-A in the embodiment of the present invention.
Fig. 3 is the sectional view of B-B in the embodiment of the present invention.
Outer tube 1, inner tube 2, lubrication main oil gallery 3, braking main oil gallery 4, plug 5, external oil duct 6, electromagnetic valve 21, No. two walls 22 of 7, wall, upper hydraulic fluid port 31, intake rocker lubrication mouth 32, exhaust rocker arm lubrication mouth 33, oil-out 34, oiler 41, exhaust rocker arm brake port 42.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
In embodiment, as it is shown in figure 1, a kind of Combined rocking arm axle, including outer tube 1, inner tube 2 is installed in described outer tube 1, the Inner Constitution lubrication main oil gallery 3 of said inner tube 2；Said inner tube 2 includes a wall 21 and No. two walls 22, a described wall 21 is the circular arc wall that the inwall with described outer tube 1 fits tightly, the central angle of described circular arc wall is more than 180 °, having gap between outer wall and the inwall of described outer tube 1 of described No. two walls 22, described gap constitutes braking main oil gallery 4；Described outer tube 1 is equipped with plug 5 with the two ends of inner tube 2.The inner tube 2 of the present embodiment is fitted in outer tube 1, respectively constitutes the rocker arm shaft of lubrication main oil gallery 3 and braking main oil gallery 4, i.e. multi-oil-passage, have easy to process, the advantage of low cost inside and outside inner tube 2.
In embodiment, as shown in Figure 2 and Figure 3, described No. two walls 22 are planar wall, a described wall 21 and the junction rounding off of No. two walls 22.A number wall 21 and No. two walls 22 of the present embodiment can be integral type structure, it is also possible to assembly is welded, and junction rounding off is beneficial to the release of stress, has more preferable intensity.
In embodiment, as it is shown in figure 1, described plug 5 is the bowl-type plug blocking described outer tube 1 with inner tube 2 mouth of pipe simultaneously.This enforcement selects bowl-type plug as the plug 5 of lubrication main oil gallery 3 with braking main oil gallery 4 two ends, has easy for installation, the feature of simple in construction, good airproof performance.
In embodiment, as shown in Figure 1 and Figure 2, described lubrication main oil gallery 3 is provided with a upper hydraulic fluid port 31, and several intake rockers lubrication mouth 32 lubricates mouth 33 with exhaust rocker arm, and described intake rocker lubrication mouth 32 lubricates mouth 33 interlaced arrangement with exhaust rocker arm；Described upper hydraulic fluid port 31, intake rocker lubrication mouth 32, the outer wall of exhaust rocker arm lubrication the most through to the described outer tube of mouth 33 1.When electromotor works, machine oil enters lubrication main oil gallery 3 from rocker arm shaft 1 upper oil hole 31, and flows through the gas rocking arm lubrication mouth 32 into interlaced arrangement and exhaust rocker arm lubrication mouth 33, provides lubrication to rocking arm.
In embodiment, as shown in Figure 1, Figure 3, described lubrication main oil gallery 3 is provided with oil-out 34, and described braking main oil gallery 4 is provided with oiler 41 and several exhaust rocker arm brake ports 42, and described oil-out 34 is connected by external oil duct 6 with oiler 41；The outer wall of described through to the described outer tube of exhaust rocker arm brake port 42 1；Described external oil duct 6 is provided with electromagnetic valve 7.When exhaust rocker arm integrated engine brakes does not works, electromagnetic valve 7 controls external oil duct 6 is closed, and the machine oil of lubrication main oil gallery 3 cannot enter braking main oil gallery 4 by external oil duct 6, and braking main oil gallery 4 does not provides pressure machine oil to exhaust rocker arm.When exhaust rocker arm integrated engine brakes works, electromagnetic valve 7 controls external oil duct 6 is opened, and the machine oil of lubrication main oil gallery 3 enters braking main oil gallery 4 by external oil duct 6, and provides pressure machine oil through exhaust rocker arm brake port 42 to exhaust rocker arm.
The present invention improves the processing method of a kind of the present embodiment: (a) chooses the steel pipe stock as described outer tube 1 with inner tube 2, and the external diameter of said inner tube 2 stock is more than the internal diameter of described outer tube 1 stock, blanking；B said inner tube 2 stock is flattened, presses fit in described outer tube 1 stock by ()；C () installs described plug 5 at the two ends of described outer tube 1 with inner tube 2.The method is compared with processing on the basis of solid shafting, and rocker arm shaft total quality is light, and processed operation is few, low cost, and the market competition has obvious advantage.
Obviously, the above embodiment of the present invention is intended to be merely illustrative of the present example, and not restriction to embodiments of the present invention.For those of ordinary skill in the field, change or the variation of other multi-forms can also be made on the basis of the above description.Here without also all of embodiment being given poor example.And the obvious change that these connotations belonging to the present invention are amplified out or variation still fall within protection scope of the present invention.
Claims (7)
1. a Combined rocking arm axle, it is characterised in that: include outer tube (1), inner tube (2) is installed in described outer tube (1), Inner Constitution lubrication main oil gallery (3) of said inner tube (2)；Said inner tube (2) includes a wall (21) and No. two walls (22), a described wall (21) is the circular arc wall that the inwall with described outer tube (1) fits tightly, the central angle of described circular arc wall is more than 180 °, having gap between outer wall and the inwall of described outer tube (1) of described No. two walls (22), described gap constitutes braking main oil gallery (4)；Described outer tube (1) is equipped with plug (5) with the two ends of inner tube (2).
Combined rocking arm axle the most according to claim 1, it is characterised in that: described No. two walls (22) are planar wall, a described wall (21) and the junction rounding off of No. two walls (22).
Combined rocking arm axle the most according to claim 1, it is characterised in that: described plug (5) is the bowl-type plug simultaneously blocking described outer tube (1) and inner tube (2) mouth of pipe.
4. according to the Combined rocking arm axle described in claim 1 or 2 or 3, it is characterized in that: described lubrication main oil gallery (3) is provided with a upper hydraulic fluid port (31), and several intake rockers lubrication mouth (32) and exhaust rocker arm lubrication mouth (33), described intake rocker lubrication mouth (32) and exhaust rocker arm lubricate mouth (33) interlaced arrangement；Described upper hydraulic fluid port (31), intake rocker lubrication mouth (32), the outer wall of exhaust rocker arm lubrication mouth (33) the most through to described outer tube (1).
Combined rocking arm axle the most according to claim 4, it is characterized in that: described lubrication main oil gallery (3) is provided with oil-out (34), described braking main oil gallery (4) is provided with oiler (41) and several exhaust rocker arm brake ports (42), and described oil-out (34) is connected by external oil duct (6) with oiler (41)；The outer wall of through to the described outer tube of described exhaust rocker arm brake port (42) (1).
Combined rocking arm axle the most according to claim 5, it is characterised in that: described external oil duct (6) is provided with electromagnetic valve (7).
7. the processing method of a Combined rocking arm axle according to claim 1, its step is as follows: (a) chooses the steel pipe stock as described outer tube (1) Yu inner tube (2), the external diameter of said inner tube (2) stock is more than the internal diameter of described outer tube (1) stock, blanking；B said inner tube (2) stock is flattened, presses fit in described outer tube (1) stock by ()；C () installs described plug (5) at the two ends of described outer tube (1) with inner tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400180.1A CN105909335A (en) | 2016-06-08 | 2016-06-08 | Combined type rocker arm shaft and machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400180.1A CN105909335A (en) | 2016-06-08 | 2016-06-08 | Combined type rocker arm shaft and machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105909335A true CN105909335A (en) | 2016-08-31 |
Family
ID=56750834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610400180.1A Pending CN105909335A (en) | 2016-06-08 | 2016-06-08 | Combined type rocker arm shaft and machining method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105909335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750026A (en) * | 2022-11-30 | 2023-03-07 | 东风商用车有限公司 | Long rocker arm shaft structure capable of controlling oil supply through separated cylinders |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1260339A (en) * | 1969-07-17 | 1972-01-12 | Rolls Royce | Improvements in or relating to a combined conduit for pressure fluid and electrical conductors |
| US4523551A (en) * | 1983-05-11 | 1985-06-18 | Aisin Seiki Kabushiki Kaisha | Valve actuating device |
| US4644912A (en) * | 1984-01-20 | 1987-02-24 | Nippon Piston Ring Co., Ltd. | Cam shaft and method of manufacture |
| US4646823A (en) * | 1984-05-24 | 1987-03-03 | Spiro Research B.V. | Pipe for utility or service systems |
| US5125373A (en) * | 1990-09-26 | 1992-06-30 | Atsugi Unisia Corporation | Oil passage structure for rocker-arm shaft for internal combustion engine |
| CN201751540U (en) * | 2010-06-18 | 2011-02-23 | 上海尤顺汽车部件有限公司 | Multi-level engine braking control device |
| CN205677688U (en) * | 2016-06-08 | 2016-11-09 | 浙江黎明发动机零部件有限公司 | A kind of Combined rocking arm axle |
-
2016
- 2016-06-08 CN CN201610400180.1A patent/CN105909335A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1260339A (en) * | 1969-07-17 | 1972-01-12 | Rolls Royce | Improvements in or relating to a combined conduit for pressure fluid and electrical conductors |
| US4523551A (en) * | 1983-05-11 | 1985-06-18 | Aisin Seiki Kabushiki Kaisha | Valve actuating device |
| US4644912A (en) * | 1984-01-20 | 1987-02-24 | Nippon Piston Ring Co., Ltd. | Cam shaft and method of manufacture |
| US4646823A (en) * | 1984-05-24 | 1987-03-03 | Spiro Research B.V. | Pipe for utility or service systems |
| US5125373A (en) * | 1990-09-26 | 1992-06-30 | Atsugi Unisia Corporation | Oil passage structure for rocker-arm shaft for internal combustion engine |
| CN201751540U (en) * | 2010-06-18 | 2011-02-23 | 上海尤顺汽车部件有限公司 | Multi-level engine braking control device |
| CN205677688U (en) * | 2016-06-08 | 2016-11-09 | 浙江黎明发动机零部件有限公司 | A kind of Combined rocking arm axle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750026A (en) * | 2022-11-30 | 2023-03-07 | 东风商用车有限公司 | Long rocker arm shaft structure capable of controlling oil supply through separated cylinders |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160831 |
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| RJ01 | Rejection of invention patent application after publication |