CN203239409U - Intake and exhaust tappet of high-power diesel engine - Google Patents
Intake and exhaust tappet of high-power diesel engine Download PDFInfo
- Publication number
- CN203239409U CN203239409U CN 201320167816 CN201320167816U CN203239409U CN 203239409 U CN203239409 U CN 203239409U CN 201320167816 CN201320167816 CN 201320167816 CN 201320167816 U CN201320167816 U CN 201320167816U CN 203239409 U CN203239409 U CN 203239409U
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- CN
- China
- Prior art keywords
- tappet
- roller
- diesel engine
- guide pin
- pin bushing
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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.)
- Expired - Fee Related
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- Lubrication Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses an intake and exhaust tappet of a high-power diesel engine. The intake and exhaust tappet comprises a tappet guide sleeve, a tappet body and a lubricating passage. The tappet body is installed in the tappet guide sleeve and can slide up and down in the tappet guide sleeve. A bulb which is connected with the intake and exhaust tappet of the diesel engine is arranged at the upper of the tappet body in an interference fitting way. A roller shaft is arranged at the lower part of the tappet body in a matched way. A roller bush is arranged on the outer circle of the roller shaft. A roller which is in contact with the cam shaft of the diesel engine is arranged on the outer circle of the roller bush. A lubricating oil inlet is formed in the side surface of the tappet guide sleeve. The lubricating passage is arranged downwards along the inner part of the side wall of the tappet guide sleeve by taking the lubricating oil inlet as a starting point, penetrates through the tappet body, is downwards and vertically arranged, enters the roller shaft, is arranged upwards and finally is terminated by taking a gap among the roller shaft, the roller bush and the roller as an ending point. The intake and exhaust tappet of the high-power diesel engine has forced lubricating and cooling functions and can realize the stable working of the intake and exhaust tappet and the valve mechanism of the diesel engine.
Description
Technical field
The utility model relates to a kind of high-power diesel engine intake and exhaust tappet, relates in particular to a kind of high-power diesel engine inlet and outlet tappet with enforced lubricating and refrigerating function, belongs to diesel engine gas distribution system field.
Background technique
At present, the high-power diesel engine on the market all uses the inlet and outlet tappet, drives the distribution work that rocker arm assembly is controlled diesel engine by the inlet and outlet tappet.And existing inlet and outlet tappet adopts and spatters oily mode workpiece is lubricated, cools off, i.e. motion by parts such as push rod, push rod cup, tappet, roller, roller shaft, copper sheathings realizes splashing of lubricant oil, thereby reaches lubricated, cooling to tappet.Since lubricant oil splash inhomogeneous and splash process and diesel engine speed, lubricant oil storage volume etc. have than Important Relations, the parts such as camshaft, copper sheathing, roller are lubricated in the course of the work, cooling is poor for diesel engine, the generation of the situation such as cause that easily distribution copper sheathing, roller are pulled, killed.And, existing diesel tappet roller axle because do not adopt radially, axial limiting, in the tappet working procedure, easily produce roller bush and roller shaft rotating Vortex, and then cause copper sheathing to kill and the axial float of roller shaft causes tappet guide pin bushing endoporus guide surface to pull.
Since existing inlet and outlet tappet to workpiece lubricated inhomogeneous, cooling capacity is poor, and the continuous lifting that diesel engine power is required along with market and the reinforcement of Design Technology for Diesels reliability theory, adopt the existing traditional inlet and outlet tappet that spatters oily mode can not guarantee the stable operation of distribution device, can not realize the reliable of diesel engine distribution working procedure.
The model utility content
The purpose of this utility model is: a kind of high-power diesel engine intake and exhaust tappet is provided, the existing intake and exhaust tappet employing of solution is spattered oily mode workpiece is lubricated, cools off, bring distribution copper sheathing, the roller situation such as pull, kill easily to occur, tappet guide pin bushing endoporus guide surface is easily pulled, and diesel engine power is not high, the reliable not technical problem of distribution working procedure, thereby can effectively solve above-mentioned problems of the prior art.
The purpose of this utility model is to realize by following technical proposals: a kind of high-power diesel engine intake and exhaust tappet, comprise tappet guide pin bushing, tappet body and lubrication channel, described tappet body is loaded in the tappet guide pin bushing, and can in the tappet guide pin bushing, slide up and down, described tappet body top interference fit arranges a bulb that links to each other with diesel engine intake and exhaust tappet, tappet body bottom is equipped with a roller shaft, the cylindrical of roller shaft is provided with roller bush, the cylindrical of described roller bush be provided with the contacted roller of cam shaft for diesel engine; Side at described tappet guide pin bushing is provided with the lubricating oil inlet, described lubrication channel is starting point along the lubricating oil inlet, down arrange along tappet guide pin bushing interior, passing behind the tappet body down, vertical the setting enters roller shaft, up arrange again, take roller shaft, roller bush and roller gap place as terminal point.
As a kind of optimal way, the upper-end surface of described tappet guide pin bushing is provided with the technique plug-hole that links to each other with diesel-engine body, is provided with it supporting technique plug-hole screw in described tappet guide pin bushing upper-end surface.
As further preferred embodiment, described technique plug-hole is down offered along the Transverse plane of tappet guide pin bushing, and the lubricating oil inlet is vertical with described technique plug-hole and be connected.
As further preferred embodiment, below roller shaft, be provided with the Cock screw for restriction roller shaft play.
The effect of each part is as follows in the utility model:
Lubrication channel: structurally the oil circuit between each part is linked, adopt pressure oil that distribution tappet part is carried out enforced lubricating, cooling, improve working stability and the reliability of each part.
Compared with prior art, the beneficial effects of the utility model: the utility model high-power diesel engine intake and exhaust tappet possesses the function that compulsory type is lubricated, cool off, according to diesel engine distribution cam axle working procedure, realize respectively lubricating each part of inlet and outlet tappet, roller shaft radially, axial limiting, and then reach the stable operation of inlet and outlet tappet, Valve Gear of Diesel; Have following beneficial effect:
What 1, change traditional inlet and outlet tappet spatters oil lubrication, the type of cooling, and the sustainable supply of pressure oil has been guaranteed lubricated, the cooling effect of each part;
2, effectively avoid roller, roller shaft to pull, roller bush such as kills at the generation of quality problems;
3, solve roller shaft to the problem of pulling of tappet guide pin bushing, guarantee the working stability of Valve Gear of Diesel part.
Description of drawings
Fig. 1 is the generalized section of the working procedure of the utility model high-power diesel engine intake and exhaust tappet;
Fig. 2 is the generalized section of another working procedure of the present utility model.
Among the figure: 1-tappet guide pin bushing, 2-tappet body, 3-roller bush, 4-roller, 5-roller shaft, 6-lubricating oil inlet, 7-Cock screw, 8-bulb, 9-technique plug-hole screw, 10-technique plug-hole, 11-lubrication channel.
Embodiment
Below in conjunction with specific embodiment the utility model is further described.
Disclosed all features in this specification, or the step in disclosed all methods or the process, except the speciality and/or step of mutual repulsion, all can make up by any way, unless special narration all can be replaced by other equivalences or the alternative features with similar purpose, namely, unless special narration, an embodiment in a series of equivalences of each feature or the similar characteristics.
Shown in Fig. 1-2, the utility model high-power diesel engine intake and exhaust tappet, comprise tappet guide pin bushing 1, tappet body 2 and lubrication channel 11, the upper-end surface of described tappet guide pin bushing 1 is provided with the technique plug-hole that links to each other with diesel-engine body and the lubricating oil inlet 6 that flows into or flow into by force for lubricant oil, specifically in the present embodiment, the upper-end surface of tappet guide pin bushing 1 is a square section, in the position at its four angles a technique plug-hole is set all, it is just in time corresponding with the body of diesel engine that four technique plug-holes are set altogether, connects by the technique plug-hole.Be provided with it supporting technique plug-hole screw 9 at described technique plug-hole 10, described technique plug-hole 10 is down offered along the Transverse plane of tappet guide pin bushing 1, and lubricating oil inlet 6 and described technique plug-hole 10 are vertical and be connected.Described tappet body 2 is loaded in the tappet guide pin bushing 1, and can in tappet guide pin bushing 1, slide up and down, described tappet body 2 top interference fit arrange a bulb 8 that links to each other with diesel engine intake and exhaust tappet, and bulb 8 can be realized moving up and down under the effect of diesel engine intake and exhaust tappet.Be equipped with a roller shaft 5 in tappet body 2 bottoms, the cylindrical of roller shaft 5 is provided with roller bush 3, and is provided with the Cock screw 7 for restriction roller shaft 5 plaies below roller shaft 5, by Cock screw 7 limit roller shaft radially, axial float.The cylindrical of described roller bush 3 is provided with roller 4, and cylindrical and the cam shaft for diesel engine of roller 4 are contacted.Described lubrication channel 11 6 is starting point along the lubricating oil inlet, down arranges along tappet guide pin bushing 1 interior, passes behind the tappet body 2 down that vertical the setting enters roller shaft 5, up arranges, take roller shaft 5, roller bush 3 and roller 4 gap places as terminal point again.
The workflow of the utility model enforced lubricating oil circuit is as follows:
Shown in the arrow among Fig. 1, Fig. 2, the lubricating oil inlet that pressure lubrication oil arranges from tappet guide pin bushing side enters the inwall of tappet guide pin bushing, then along tappet guide pin bushing interior toward dirty, lubrication channel is toward interior lateral buckling or bending, so that lubricant oil can enter the tappet body, the lubricant oil that enters behind the tappet body is badly in need of entering roller shaft along lubrication channel, enter behind the roller shaft again since lubrication channel up crooked or bending direction and from roller shaft and roller bush connecting part out, flow out from the below of roller shaft at last.
In the flow process of whole lubricant oil, the pressure oil that enters tappet guide pin bushing inwall is lubricated cooling to the external disc of tappet, roller shaft periphery, roller bush inwall, roller bush periphery, roller inwall, roller side, roller cylindrical respectively, thereby realized the effect of enforced lubricating, cooling, improved working stability, the reliability of each part.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. high-power diesel engine intake and exhaust tappet, comprise tappet guide pin bushing (1) and tappet body (2), it is characterized in that: also comprise lubrication channel (11), described tappet body (2) is loaded in the tappet guide pin bushing (1), and can in tappet guide pin bushing (1), slide up and down, described tappet body (2) top interference fit arranges a bulb (8) that links to each other with diesel engine intake and exhaust tappet, tappet body (2) bottom is equipped with a roller shaft (5), the cylindrical of roller shaft (5) is provided with roller bush (3), the cylindrical of described roller bush (3) be provided with the contacted roller of cam shaft for diesel engine (4); Be provided with lubricating oil inlet (6) in the side of described tappet guide pin bushing (1), (6) are starting point to described lubrication channel (11) along the lubricating oil inlet, down arrange along tappet guide pin bushing (1) interior, passing behind the tappet body (2) down, vertical the setting enters roller shaft (5), up arrange again, take roller shaft (5), roller bush (3) and roller (4) gap place as terminal point.
2. high-power diesel engine intake and exhaust tappet as claimed in claim 1, it is characterized in that: the upper-end surface of described tappet guide pin bushing (1) is provided with the technique plug-hole that links to each other with diesel-engine body, is provided with it supporting technique plug-hole screw (9) in described tappet guide pin bushing (1) upper-end surface.
3. high-power diesel engine intake and exhaust tappet as claimed in claim 2, it is characterized in that: described technique plug-hole (10) is down offered along the Transverse plane of tappet guide pin bushing (1), and lubricating oil inlet (6) are vertical with described technique plug-hole (10) and be connected.
4. such as the described high-power diesel engine intake and exhaust of arbitrary claim tappet in claim 1 or 3, it is characterized in that: be provided with the Cock screw (7) for restriction roller shaft (5) play in the below of roller shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320167816 CN203239409U (en) | 2013-04-07 | 2013-04-07 | Intake and exhaust tappet of high-power diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320167816 CN203239409U (en) | 2013-04-07 | 2013-04-07 | Intake and exhaust tappet of high-power diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239409U true CN203239409U (en) | 2013-10-16 |
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ID=49316719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320167816 Expired - Fee Related CN203239409U (en) | 2013-04-07 | 2013-04-07 | Intake and exhaust tappet of high-power diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239409U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3144490A1 (en) * | 2015-09-16 | 2017-03-22 | Eaton Corporation | Anti-rotation device for lifter |
| CN109812312A (en) * | 2019-03-29 | 2019-05-28 | 潍柴动力股份有限公司 | A kind of tappet and engine valve actuating mechanism |
| CN111622820A (en) * | 2020-06-22 | 2020-09-04 | 河南柴油机重工有限责任公司 | Diesel engine roller tappet |
-
2013
- 2013-04-07 CN CN 201320167816 patent/CN203239409U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3144490A1 (en) * | 2015-09-16 | 2017-03-22 | Eaton Corporation | Anti-rotation device for lifter |
| CN109812312A (en) * | 2019-03-29 | 2019-05-28 | 潍柴动力股份有限公司 | A kind of tappet and engine valve actuating mechanism |
| CN109812312B (en) * | 2019-03-29 | 2020-06-26 | 潍柴动力股份有限公司 | Tappet and engine valve actuating mechanism |
| CN111622820A (en) * | 2020-06-22 | 2020-09-04 | 河南柴油机重工有限责任公司 | Diesel engine roller tappet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 641301 Ziyang City, Sichuan province Yanjiang District No. 77 City Road four Patentee after: Sichuan Zhongche Yuchai engine Limited by Share Ltd Address before: 641301 Ziyang City, Sichuan province Yanjiang District No. 77 City Road four Patentee before: YCSR Sichuan Engine Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20190407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |