CN203561508U - A simulating piston for engine cylinder body fatigue tests - Google Patents
A simulating piston for engine cylinder body fatigue tests Download PDFInfo
- Publication number
- CN203561508U CN203561508U CN201320581452.4U CN201320581452U CN203561508U CN 203561508 U CN203561508 U CN 203561508U CN 201320581452 U CN201320581452 U CN 201320581452U CN 203561508 U CN203561508 U CN 203561508U
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- engine cylinder
- piston
- simulating piston
- simulating
- main body
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Abstract
The utility model relates to a simulating piston for engine cylinder body fatigue tests. The simulating piston comprises a simulating piston body and a Y-shaped sealing ring. A shoulder is processed on the simulating piston body and divides the simulating piston body into a top part and a bottom part. The Y-shaped sealing ring is sleeved on the shoulder. The diameter of the bottom part of the simulating piston body corresponds to the internal diameter of the cylinder body. The diameter of the top part of the simulating piston body corresponds to the internal diameter of the Y-shaped sealing ring. The simulating piston is installed in a cylinder sleeve and placed over a connection rod and a piston flatly. Thus, oil pressure loading can be performed on the simulating piston for engine cylinder body fatigue tests from top by a device in order to check the cylinder sleeve. The simulating piston for engine cylinder body fatigue tests has characteristics of simple design and processing and easy installation and uninstallation, simulates the force-bearing cases of the cylinder sleeve approximately really, can be used in fatigue tests of common diesel engine cylinder bodies or gasoline engine cylinder bodies, and has certain practical significance and high practical value.
Description
Technical field:
The utility model belongs to engine cylinder-body torture test technical field, relates to simulation piston for a kind of engine cylinder-body torture test.
Background technology:
Cylinder body is the vitals of engine, must carry out to it checking of fatigue behaviour, to determine the rationality of its design, production technology, material in engine development and existing production.
Cylinder fatigue test is mainly that the cylinder sleeve of cylinder body and main bearing seat and cylinder body integral body are examined.In automobile industry abroad, the torture test of cylinder body is popularized, and what it adopted is the mode of servosystem hydraulic loaded, and equipment and matched clamp costliness.Cylinder fatigue test does not also gain universal acceptance at home, but universal trend is inevitable.Therefore equipment, method and the fixture of developing cylinder fatigue test are necessary.
Summary of the invention:
The technical problems to be solved in the utility model is to provide simulation piston for a kind of engine cylinder-body torture test.
In order to solve the problems of the technologies described above, engine cylinder-body torture test of the present utility model comprises simulation piston main body and y-type seal ring with simulation piston; Described simulation piston main body is processed with a shoulder, and simulation piston main body is divided into two of upper and lowers part, and y-type seal ring is set in this shoulder place; The diameter of the bottom of simulation piston main body is corresponding with cylinder sleeve internal diameter, and the diameter on top is corresponding with the internal diameter of y-type seal ring.
In cylinder fatigue test, simulation piston does not pump, just play the transfer function of power, the hydraulic pressure transmission at its top is downward, in design, to consider the simulation pressure bearing situation (can not damage) of piston and the best of hydraulic oil outburst space under larger pressure, after test of many times is attempted, determining simultaneously:
The height size on the top of simulation piston main body is 5% throw of poston+y-type seal ring height+piston top land height, and half that the whole height size of simulation piston main body is throw of poston deducts 3mm.
Simulation piston according to above-mentioned size design is comparatively firm, not fragile, and outburst, the load condition of hydraulic oil are good simultaneously, has met well the needs of whole test.
The upper end of described simulation piston main body is threaded hole, and the size of this threaded hole is corresponding with cylinder bolt thread size.
When engine cylinder-body is carried out to torture test, first simulation piston is contained in cylinder sleeve, lie against in the top of connecting rod and piston, then by equipment, by top, engine cylinder-body torture test is carried out to oil pressure with simulation piston and load and can examine cylinder sleeve.The utlity model has design, processing simply, the feature of installation, convenient disassembly, and approach the stressing conditions of having simulated really cylinder sleeve, and can be used for the torture test of common diesel oil, cylinder of petrol engine, there is certain practical significance and higher practical value.
Accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the cut-open view of simulation piston for engine cylinder-body torture test of the present utility model.
Fig. 2 is that engine cylinder-body torture test of the present utility model is used in conjunction with schematic diagram with simulation piston and cylinder sleeve.
Embodiment:
As shown in Figure 1, 2, engine cylinder-body torture test of the present utility model comprises simulation piston main body 3 and y-type seal ring 1 with simulation piston.Described simulation piston main body 3 is processed with a shoulder, and simulation piston main body 3 is divided into top 8 and 7 two of bottoms part, and y-type seal ring 1 is set in this shoulder place; The diameter R of bottom 8 of simulation piston main body 3 is corresponding with the internal diameter of cylinder sleeve 2, and the diameter r on top 7 is corresponding with the internal diameter of y-type seal ring 1.The size of the height L on the top 7 of simulation piston main body 3 is 5% throw of poston+y-type seal ring height+piston top land height, and half that the size of the whole height H of simulation piston main body 3 is throw of poston deducts 3mm.The top on the top 7 of simulation piston main body 3 is threaded hole 6, and the size M of this threaded hole 6 is corresponding with cylinder bolt thread size.Cylinder body is carried out to torture test complete, cylinder bolt is connected with threaded hole 6 and can will simulates piston from the interior taking-up of cylinder sleeve 2 easily.
As shown in Figure 2, when engine cylinder-body is carried out to torture test, simulation piston is contained in cylinder sleeve 2, lies against in the top of connecting rod 5 and piston 4.
Above-described embodiment is only the specific descriptions to the utility model preferred implementation; can not be construed as limiting protection domain of the present utility model; so every any simple deformation of making on technical solutions of the utility model basis, all within the utility model intention protection domain.
Claims (3)
1. a simulation piston for engine cylinder-body torture test, is characterized in that comprising simulation piston main body (3) and y-type seal ring (1); Described simulation piston main body (3) is processed with a shoulder, will simulate piston main body (3) and be divided into top (7) and (8) two of bottoms part, and y-type seal ring (1) is set in this shoulder place; The diameter of the bottom (8) of simulation piston main body (3) is corresponding with cylinder sleeve internal diameter, and the internal diameter of the diameter of top (7) and y-type seal ring (1) is corresponding.
2. engine cylinder-body torture test according to claim 1 is with simulating piston, the height size that it is characterized in that the top (7) of described simulation piston main body (3) is 5% throw of poston+y-type seal ring height+piston top land height, and half that the whole height size of simulation piston main body (3) is throw of poston deducts 3mm.
3. simulation piston for engine cylinder-body torture test according to claim 1 and 2, is characterized in that the top, top (7) of described simulation piston main body (3) is threaded hole (6), and the size of this threaded hole (6) is corresponding with cylinder bolt thread size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581452.4U CN203561508U (en) | 2013-09-20 | 2013-09-20 | A simulating piston for engine cylinder body fatigue tests |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581452.4U CN203561508U (en) | 2013-09-20 | 2013-09-20 | A simulating piston for engine cylinder body fatigue tests |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561508U true CN203561508U (en) | 2014-04-23 |
Family
ID=50511223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320581452.4U Expired - Lifetime CN203561508U (en) | 2013-09-20 | 2013-09-20 | A simulating piston for engine cylinder body fatigue tests |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561508U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345256A (en) * | 2020-11-19 | 2021-02-09 | 中国第一汽车股份有限公司 | Engine cylinder fatigue test method |
| CN114235361A (en) * | 2021-11-30 | 2022-03-25 | 潍柴动力股份有限公司 | Engine piston and engine piston fatigue test device |
-
2013
- 2013-09-20 CN CN201320581452.4U patent/CN203561508U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345256A (en) * | 2020-11-19 | 2021-02-09 | 中国第一汽车股份有限公司 | Engine cylinder fatigue test method |
| CN114235361A (en) * | 2021-11-30 | 2022-03-25 | 潍柴动力股份有限公司 | Engine piston and engine piston fatigue test device |
| US11761853B2 (en) | 2021-11-30 | 2023-09-19 | Weichai Power Co., Ltd. | Engine piston and fatigue testing apparatus for engine piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |