CN204327301U - The pre-assembled power packages of diesel engine - Google Patents
The pre-assembled power packages of diesel engine Download PDFInfo
- Publication number
- CN204327301U CN204327301U CN201420795498.0U CN201420795498U CN204327301U CN 204327301 U CN204327301 U CN 204327301U CN 201420795498 U CN201420795498 U CN 201420795498U CN 204327301 U CN204327301 U CN 204327301U
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- China
- Prior art keywords
- diesel engine
- cylinder liner
- piston
- power packages
- assembled
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- Expired - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses the pre-assembled power packages of a kind of diesel engine, piston connecting rod unit is arranged in cylinder liner, cylinder head is installed in cylinder liner by power packages bolton, at cylinder liner bottom margin, pistons stops is installed, when piston is positioned at lower dead center, between the skirt section lower limb of piston and pistons stops, leave gap.By designing the pre-assembled power packages of this modular diesel engine, the assembling of single parts can be completed in main frame manufactory, ensure assembly quality better, and the integral power group assembled can realize independent shipping, lifting, make user's dismounting and change more simple and convenient, highly shortened failing locomotive stopping time unattended time, ensure the utilization efficiency of diesel engine better.
Description
Technical field
The utility model relates to a kind of power pack components, particularly relates to the pre-assembled power packages of a kind of diesel engine, belongs to Diesel Engine Technique Field.
Background technique
Burning chamber of diesel engine external member generally forms by with lower component: cylinder head, cylinder liner, Piston assembling and piston ring etc., the mixed combustion in firing chamber of diesel oil and high temperature and high pressure gas, the chemical energy of fuel is made to be heat energy, and pass through piston, connecting rod crank mechanism (to-and-fro motion changes rotary motion into) makes thermal energy be mechanical work (the continuous repetitive cycling of said process), therefore usual by the parts having participated in diesel powered generation directly and export, i.e. cylinder head, cylinder liner, piston group (comprising wrist pin and piston ring), connecting rod is referred to as power pack components.During existing 240 serial diesel engine assembling, usually be all that power pack components is installed on diesel engine singly, namely 1) first cylinder liner is installed on body, 2) built-up piston, wrist pin and connecting rod are assembled in cylinder liner, 3) cylinder head is installed in cylinder liner, 4) fastening cylinder head bolt, compresses cylinder head, cylinder liner and body, so far completes whole power pack components and is installed to process on diesel engine.Otherwise when opening and inspecting, also to decompose one by one.To open and inspect or change certain parts in power packages, as piston, wrist pin etc., first must remove cylinder head, hang out piston connecting rod unit, then decompose piston, wrist pin and connecting rod and carry out part replacement, and then recover assembling one by one, waste time and energy.Particularly at machine vehicular operation, narrow space, it is more difficult to disassemble replacing.In addition because power pack components is most important in diesel engine, permitted multipart assembling and fasteningly all needed special tool and very strict technical requirements, not all user possesses the condition that scene is disassembled and assembled, therefore when power pack components breaks down often owing to not having proprietary frock tool cannot open and inspect replacing in time, cause the diesel engine long-time stopping time to be repaired, affect the normal use of user.
Summary of the invention
The purpose of this utility model is the deficiency overcoming prior art, provide a kind of can overall shipping, lift, be easy to the pre-assembled power packages of Modular diesel engine of dismounting and change.
The purpose of this utility model is achieved through the following technical solutions, the pre-assembled power packages of a kind of diesel engine, piston connecting rod unit is arranged in cylinder liner, cylinder head is installed in cylinder liner by power packages bolton, it is characterized in that: at cylinder liner bottom margin, pistons stops is installed, when piston is positioned at lower dead center, between the skirt section lower limb of piston and pistons stops, leave gap.
In order to realize the purpose of this utility model better, described pistons stops is the arc boss shape matched with cylinder liner bottom margin attachment face.
The beneficial effects of the utility model are, by designing the pre-assembled power packages of this modular diesel engine, the main frame manufactory that opens and inspect, changes and be assembled in of the single parts in power packages is completed, ensure assembly quality better, the integral power group assembled can realize independent shipping, lifting, make user's dismounting and change on locomotive more simple and convenient, highly shortened time to be repaired in failing locomotive stopping time, ensure the utilization efficiency of diesel engine of locomotive better.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pre-assembled power packages of the utility model diesel engine;
Fig. 2 is the A-A view of Fig. 1.
In figure: 1-cylinder head, 2-power packages bolt, 3-cylinder liner, 4-pistons stops, 5-fastening screw trip bolt, 6-piston connecting rod unit, 7-piston.
Embodiment
For making goal of the invention of the present utility model, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, carry out knowing to the technical solution of the utility model and intactly describe, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
See Fig. 1, the pre-assembled power packages of the utility model diesel engine, power pack components is assembled into an overall structure in advance outward at diesel engine, exactly cylinder liner 3 is first loaded in turnover power packages special stand, then overturning cylinder liner 3 to make bottom it upwards, its bottom from cylinder liner 3 loads in cylinder liner 3 by lifting piston connecting rod unit 6, is provided with pistons stops 4 at cylinder liner 3 bottom margin.See Fig. 2, the concrete condition that pistons stops 4 is installed can be seen clearly from Fig. 2, when piston is positioned at lower dead center, gap is left between the skirt section lower limb of piston 7 and pistons stops 4, pistons stops 4 is the arc boss shape matched with cylinder liner 3 bottom margin attachment face, two pistons stops 4 can be mounted opposite on cylinder liner 3 bottom margin, fixed by fastening screw trip bolt 5, upset power packages special stand, together with cylinder liner 3 and piston connecting rod unit 6 in forward position, at this moment pistons stops 4 can hold piston connecting rod unit 6, should ensure that piston connecting rod unit 6 can not drop, and when running to lower dead center in pistons work, the skirt section lower limb of piston 7 also can not collide with pistons stops 4, cylinder head 1 to be correctly installed in cylinder liner 3 and to put on right position, together with power packages bolt 2 cylinder head 1 being fastened to cylinder liner 3, form the pre-assembled power packages after all having assembled.
The pre-assembled power packages of the utility model diesel engine, owing to being power pack components is assembled into an overall structure in advance, can carry out integral hoisting, whole Transporting and integral replacing to it.This and ensure that assembly quality, independent shipping, lifting can be realized again, make dismounting and change more simple and convenient.
Claims (2)
1. the pre-assembled power packages of diesel engine, piston connecting rod unit (6) is arranged in cylinder liner (3), cylinder head (1) is installed in cylinder liner (3) fastening by power packages bolt (2), it is characterized in that: at cylinder liner (3) bottom margin, pistons stops (4) is installed, when piston is positioned at lower dead center, between the skirt section lower limb of piston (7) and pistons stops (4), leave gap.
2. the pre-assembled power packages of diesel engine according to claim 1, is characterized in that: described pistons stops (4) is the arc boss shape matched with cylinder liner (3) bottom margin attachment face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420795498.0U CN204327301U (en) | 2014-12-12 | 2014-12-12 | The pre-assembled power packages of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420795498.0U CN204327301U (en) | 2014-12-12 | 2014-12-12 | The pre-assembled power packages of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327301U true CN204327301U (en) | 2015-05-13 |
Family
ID=53163670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420795498.0U Expired - Fee Related CN204327301U (en) | 2014-12-12 | 2014-12-12 | The pre-assembled power packages of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327301U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171394A (en) * | 2015-10-27 | 2015-12-23 | 潍柴动力股份有限公司 | Assembling and disassembling methods for engine body and crank and connecting rod mechanism of engine and assembling and disassembling tool |
| CN109973235A (en) * | 2017-12-28 | 2019-07-05 | 中国船舶重工集团公司第七一一研究所 | A kind of fixation kit |
-
2014
- 2014-12-12 CN CN201420795498.0U patent/CN204327301U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171394A (en) * | 2015-10-27 | 2015-12-23 | 潍柴动力股份有限公司 | Assembling and disassembling methods for engine body and crank and connecting rod mechanism of engine and assembling and disassembling tool |
| CN109973235A (en) * | 2017-12-28 | 2019-07-05 | 中国船舶重工集团公司第七一一研究所 | A kind of fixation kit |
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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 |
Granted publication date: 20150513 Termination date: 20161212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |