CN203657944U - Structure device improving engine and dynamometer centring connection precision - Google Patents
Structure device improving engine and dynamometer centring connection precision Download PDFInfo
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- CN203657944U CN203657944U CN201320809219.7U CN201320809219U CN203657944U CN 203657944 U CN203657944 U CN 203657944U CN 201320809219 U CN201320809219 U CN 201320809219U CN 203657944 U CN203657944 U CN 203657944U
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- engine
- dynamometer
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- support stand
- wheel
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- 230000007704 transition Effects 0.000 claims abstract description 20
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 238000003754 machining Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The utility model discloses a structure device improving engine and dynamometer centring connection precision. According to the technical scheme, the upper end face of the center of a semicircular supporting bench is perpendicular to end faces on both sides; the excircle of a transition disk is processed into convex inner and outer spigots; a fly wheel casing spigot and the convex inner spigot of the transition disk are fixedly connected through a bolt; and the convex outer spigot of the transition disk and the end face on the center side of the semicircular supporting bench are fixedly connected through a bolt. A fly wheel and an opposite wheel are connected with the bolts through the spigots. An engine main shaft and the fly wheel are connected through a positioning pin and a bolt. The opposite wheel is coaxially connected with a dynamometer through a coupler. According to the utility model, the fly wheel and the coupler are connected through the transition disk, thus the centring precision of the axes of an engine and the dynamometer is improved; due to the fact that the centring precision of two axes is improved, the problems of vibration, jittering and the like of the engine are reduced; the vehicle testing quality is improved; and the structure device can be widely promoted.
Description
Technical field
The utility model belongs to engine performance measuring technology, is specifically related to a kind of engine is connected precision constructional device with dynamometer machine centering that improves.
Background technology
Dispatch from the factory in performance test program at engine, must adopt dynamometer machine to detect the output power of engine, now engine will be connected with dynamometer machine centering by shaft coupling.When connection, must guarantee that the concentricity of engine and two axis of dynamometer machine, in the scope of allowable tolerance, could measure engine property indices objective and accurately.If centering is poor, can cause vibration, the wearing and tearing of engine, even, because the error of centralization causes shaft coupling fracture compared with conference, jeopardize personal safety.Therefore possess safety, high-precision syndeton, engine is carried out to measurement of power test run Shi Ge engine producer must project up to standard.The bell housing positioning connection structure that the utility model adopts, can meet accuracy of alignment requirement completely.
Summary of the invention
The purpose of this utility model, is to provide a kind of engine is connected precision constructional device with dynamometer machine centering that improves, and can meet engine run requirement.
For realizing the technical scheme that the utility model object adopts be: the upper surface at semicircle support stand center is mutually vertical with both sides end face, the Excircle machining of transition disc becomes the inside and outside seam of convex, by bolt, bell housing seam and transition disc convex inner stopper are fastenedly connected, the outer round convex shape male half coupling of transition disc and semicircle support stand central side end face are bolted connection.Flywheel with to wheel is connected by seam and bolt, between engine spindle and flywheel, adopt register pin to be connected with bolt, to take turns be coaxially connected with dynamometer by shaft coupling.
Guarantee the axis centering of engine and dynamometer machine, intended adopting bell housing being connected as engine and shaft coupling.But problem is that bell housing locating surface (seam) is too narrow, for this reason special design transition disc the locating surface of bell housing is increased.Why this technical scheme requires the upper surface at semicircle support stand center mutually vertical with both sides end face; The Excircle machining of transition disc becomes the inside and outside seam of convex, exactly in order to guarantee the verticality in each parts end face and engine axle center.Any mechanical component, as long as process " seam ", just can guarantee that two end faces of seam are mutually vertical.Therefore transition disc cylindrical (convex) male half coupling is connected with semicircle support stand; Inner stopper is connected with bell housing, so just can guarantee that engine spindle center is vertical with shaft coupling.
Feature of the present utility model and beneficial effect are: simple in structure, employing transition disc is realized being connected between bell housing and shaft coupling, makes effectively to improve the accuracy of alignment of engine and dynamometer machine axis.Due to the raising of diaxon accuracy of alignment, the problems such as engine luggine, shake also decrease.The utility model has improved test run quality, and has promotional value widely.
Accompanying drawing explanation
Fig. 1 is the utility model principle and structure diagram.
Fig. 2 is the front view of semicircle support stand and bell housing syndeton.
Embodiment
Referring to accompanying drawing and by embodiment, theory structure of the present utility model is further described.Improve engine and be connected the constructional device of precision with dynamometer machine centering, comprise semicircle support stand, transition disc, bell housing, flywheel, to wheel, shaft coupling, dynamometer and bolt etc.Its structure is: the upper surface at semicircle support stand 1 center is mutually vertical with both sides end face, the Excircle machining of transition disc 3 becomes the inside and outside seam of convex, by bolt 2, bell housing 4 seams and transition disc convex inner stopper are fastenedly connected, the outer round convex shape male half coupling of transition disc and semicircle support stand central side end face are bolted connection.Flywheel 5 be connected by seam and bolt taking turns 6, between engine spindle and flywheel, adopt register pin to be connected with bolt, wheel is coaxially connected with dynamometer 8 by shaft coupling 7.The left side of semicircle support stand is a support stand of configuration in addition, for the support of engine with fixing.
As embodiment, the bell housing type that is 405mm to 4102 serial diesel engine diameters carries out centering debugging, and this type bell housing seam machining precision is 0～+ 0.097mm, and its locating surface effective width only has 4.47mm, and locating surface " increase " is arrived 20mm by transition disc.After debugging, the centering coaxiality error of this device guarantees in 0.4mm, detects through vibration test, and peak swing can reduce by 70%.Jitter problem while having reduced engine idle and fast idle.
Claims (2)
1. improve engine is connected precision constructional device with dynamometer machine centering, comprise semicircle support stand, transition disc, bell housing, flywheel, to wheel, shaft coupling, dynamometer and bolt, it is characterized in that: the upper surface at semicircle support stand (1) center is mutually vertical with both sides end face, the Excircle machining of transition disc (3) become convex in, male half coupling, by bolt (2), bell housing (4) seam and transition disc convex inner stopper are fastenedly connected, the outer round convex shape male half coupling of transition disc and semicircle support stand central side end face are bolted connection, flywheel (5) with to wheel (6) be connected by seam and bolt, between engine spindle and flywheel, adopt register pin to be connected with bolt, wheel is coaxially connected with dynamometer (8) by shaft coupling (7).
2. be connected the constructional device of precision according to raising engine claimed in claim 1 with dynamometer machine centering, it is characterized in that in the left side of described semicircle support stand (1) support stand of configuration in addition, for the support of engine with fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320809219.7U CN203657944U (en) | 2013-12-10 | 2013-12-10 | Structure device improving engine and dynamometer centring connection precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320809219.7U CN203657944U (en) | 2013-12-10 | 2013-12-10 | Structure device improving engine and dynamometer centring connection precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657944U true CN203657944U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320809219.7U Expired - Lifetime CN203657944U (en) | 2013-12-10 | 2013-12-10 | Structure device improving engine and dynamometer centring connection precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657944U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849056A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Aligning tool and method for engine testing |
| CN109812487A (en) * | 2018-04-10 | 2019-05-28 | 湖北云康动力科技有限公司 | A kind of engine test flywheel and dynamometer machine fastening means |
| CN110332301A (en) * | 2019-07-15 | 2019-10-15 | 中机生产力促进中心 | A kind of fast accurate centering attachment device |
-
2013
- 2013-12-10 CN CN201320809219.7U patent/CN203657944U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849056A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Aligning tool and method for engine testing |
| CN109812487A (en) * | 2018-04-10 | 2019-05-28 | 湖北云康动力科技有限公司 | A kind of engine test flywheel and dynamometer machine fastening means |
| CN110332301A (en) * | 2019-07-15 | 2019-10-15 | 中机生产力促进中心 | A kind of fast accurate centering attachment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Structure device improving engine and dynamometer centring connection precision Effective date of registration: 20190612 Granted publication date: 20140618 Pledgee: LINGYUAN IRON & STEEL GROUP CO.,LTD. Pledgor: DONGFENG CHAOYANG DIESEL Co.,Ltd. Registration number: 2019210000021 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |