CN104155111A - Engine erecting dolly centering apparatus and centering method thereof - Google Patents
Engine erecting dolly centering apparatus and centering method thereof Download PDFInfo
- Publication number
- CN104155111A CN104155111A CN201410415664.4A CN201410415664A CN104155111A CN 104155111 A CN104155111 A CN 104155111A CN 201410415664 A CN201410415664 A CN 201410415664A CN 104155111 A CN104155111 A CN 104155111A
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- dolly
- centralising device
- engine
- centering
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Abstract
The invention relates to an engine erecting dolly centering apparatus and a centering method thereof. The engine erecting dolly centering apparatus comprises a dolly, a centering apparatus and a dynamometer. The dolly and the dynamometer are arranged on an installation base plate, and the centering apparatus is installed on the dolly; the dolly is provided with an engine support leg and a crossbeam, and the position of an engine arranged on the dolly can be adjusted through adjusting the engine support leg and the crossbeam; the centering apparatus comprises a centering apparatus main body, a positioning block, a sliding sleeve and a centering disc; the sliding sleeve is rotationally arranged at the upper end of the centering apparatus main body; one end of the centering disc is connected with the sliding sleeve, and the other end is used for connection with an engine driving disc; and the positioning block is arranged at a position where the centering apparatus main body and the dolly are fixed for installing and positioning the dolly.
Description
Technical field
The invention belongs to engine detection field, specifically refer to that a kind of engine builds dolly centralising device and centering method thereof.
Background technology
Before carrying out engine rig test, engine need to be built on dolly, move to indoor layout and the work of engine centering that completes sensor, gas outlet and miscellaneous part of bench test.Traditional centering method is iron wire centering method, and the Efficiency and accuracy of this centering method is lower.Along with the increase of test mission and the lifting of product quality demand, need higher engine to build efficiency and centering degree of accuracy better to complete test preliminary work.
The region of building outside testing laboratory is placed in engine on the dolly with engine supporting leg, and height of landing leg and horizontal level are all adjustable.Dolly integral body is sent to testing laboratory and builds operation, by iron wire centering method, complete engine centering and work.Iron wire centering method: each fixes an iron wire at the dynamometer machine end of transmission shaft and engine end, iron wire free end aligns to the midline, visual definite initial relative position, the rotary crankshaft of reciprocal twocouese, after often rotating to an angle, iron wire relative position can change, and by knocking locomotor supporting leg, to adjust free end relative position and the original state of iron wire basically identical.Repeatedly operation until iron wire free end relative position with crankshaft rotating, do not change.The shortcoming of this technology is:
Efficiency is low: iron wire centering method is consuming time grows (at least 1 hour) and must be in test office operation, means that like this centering work just can carry out after can only waiting for the engine lower stage that has completed test in testing laboratory.
Stand: refer to a set of complete testing laboratory, comprise place and all kinds of testing equipment, as 6# test-bed, 7# test-bed.
Low precision: because iron wire centering method adopts visual measurement, the right alignment of bringing and angular error are large and have larger uncertainty, because visual measurement does not have clear and definite Data support.
Summary of the invention
First object of the present invention is to pass through the technical program, realize when in testing laboratory, lower stage work is carried out, outside Ke testing laboratory, carry out the work of engine centering simultaneously, thereby make centering work have more efficiency, and can error information is provided and it is controlled according to the demand of building, improve accuracy of alignment with better supportive test.
Another object of the present invention is, in centering work, simulate centre-height and the transmission shaft horizontal level of dynamometer machine, right alignment and angular error measuring condition are provided, can realize the engine centering outside testing laboratory and all there is good reliability and accuracy in the centering work of any model engine.
The present invention is achieved by the following technical solutions:
Engine is built a dolly centralising device, includes dolly, centralising device and dynamometer machine; Described dolly and dynamometer machine are arranged on mounting base, and described centralising device is installed on described dolly;
On described dolly, be provided with engine supporting leg and crossbeam, by adjusting described engine supporting leg and crossbeam, can adjust the engine location being placed on dolly;
Described centralising device includes centralising device main body, locating piece, sliding sleeve and to mid-game; Described sliding sleeve rotates the upper end that is arranged at centralising device main body; Described to mid-game one end connection sliding sleeve, the other end is for connecting with engine driven dish; Described locating piece is arranged at centralising device main body with described dolly fixed position, is used for, with dolly, location is installed.
The upper end of described centralising device main body is provided with outer tube, and described sliding sleeve is arranged in described outer tube and is rotatably assorted with described outer tube.
Described centralising device main body is triangle, trapezoidal, rectangle or square-shaped frame shelf structure.
Engine is built a dolly centralising device centering method, includes centralising device and dynamometer machine centering method and centralising device and dolly centering method.
Described centralising device and dynamometer machine centering method are:
Described centralising device is fixed on for settling the dolly of engine, with a simulation axle, through the sliding sleeve on described centralising device with to mid-game, and one end of simulation axle is fixed with described dynamometer machine;
Described, mid-game side is arranged at dial gauge on described simulation axle, rotates dynamometer machine main shaft, with described dial gauge check respectively described dynamometer machine main shaft with described to coaxial deviation and angular deviation between mid-game;
Adjust height and the horizontal level of described dynamometer machine, make described centimeter check to coaxial deviation and angular deviation meet centering requirement.
Described centralising device and dolly centering method are:
Engine is placed on described dolly, by adjusting the position of engine supporting leg and crossbeam, makes the sliding sleeve of engine driven end face and described centralising device substantially identical; Carrying out coaxality measurement and angular error measures;
Described coaxality measurement, is arranged at dial gauge on described sliding sleeve, rotates sliding sleeve, measures the dial gauge number of degrees of engine driven axle installation position inner circle each point of a week;
The position of vernier supporting leg and crossbeam, makes the dial gauge number of degrees within meeting numerical value;
Described angular error is measured, and dial gauge is arranged on described sliding sleeve, rotates sliding sleeve, measures engine driven axial end apart from the dial gauge number of degrees of each point on the circumference of center of circle setting value; The position of vernier supporting leg and crossbeam, makes the dial gauge number of degrees within meeting numerical value.
After centralising device and dynamometer machine centering, the center height of simulation dynamometer machine is the vertical range of axis and the mounting base of described simulation axle.
The invention has the beneficial effects as follows:
The present invention can meet engine and in region, non-laboratory, complete the centering with dynamometer machine, after no longer needing to wait for testing laboratory's intrinsic motivation lower stage, carry out, when having realized the inside and outside building of testing laboratory, carry out, greatly promoted engine and built the especially efficiency of centering work of operation.
The present invention adopts dial gauge to carry out error measure, and centering mode as compared with the past has higher precision and the controlled ability of data.
Accompanying drawing explanation
Fig. 1 is that engine of the present invention is built dolly centralising device structural representation;
Fig. 2 is the fixing exploded view of centralising device of the present invention and dolly;
Fig. 3 is the angular deviation instrumentation plan in centralising device of the present invention and dynamometer machine centering process;
Fig. 4 is centralising device structural representation of the present invention;
Fig. 5 is that engine of the present invention is placed in the structural representation on dolly.
Embodiment
By specific embodiment, describe technical scheme of the present invention in detail below, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not to be interpreted as is the restriction to technical solution of the present invention.
As depicted in figs. 1 and 2, for the application's engine, build dolly centralising device schematic diagram, include dolly 3, centralising device 2 and dynamometer machine 1; Described dolly 3 and dynamometer machine 1 order are arranged on mounting base 4, and described centralising device 2 is installed on by holder 21 on the stiff end 33 of described dolly 3, and centralising device 2 is between dolly 3 and dynamometer machine 1.
As shown in Figure 5, on described dolly 3, be provided with engine supporting leg 31 and crossbeam 32, by adjusting described engine supporting leg 31 and crossbeam 32, can adjust engine 8 positions that are placed on dolly, so that centering operation.
As shown in Figure 4, described centralising device 2 includes apparatus main body 24 in triangle pair, locating piece 25, sliding sleeve 22 and to mid-game 23, in other embodiment of the application, the shape of centralising device main body can, for framed structures such as trapezoidal, rectangle or squares, play a supportive role.Described sliding sleeve rotates the upper end that is arranged at centralising device main body, and specifically the upper end of centralising device main body is provided with outer tube, and described sliding sleeve is arranged in described outer tube and is rotatably assorted with described outer tube.Described to mid-game one end connection sliding sleeve, the other end is for connecting with engine driven dish; Described locating piece 25 is arranged at centralising device main body with described dolly fixed position, is used for, with dolly, location is installed.
Engine is built a dolly centralising device centering method, includes centralising device and dynamometer machine centering method and centralising device and dolly centering method.
In order to realize the centering with engine, this centralising device must be simulated the length of the high and transmission shaft in the center of dynamometer machine exactly.The high simulation in center realizes after combining by the installation with dolly, and the simulation of propeller shaft length realizes by the location of dolly.This centralising device is fixed on engine dolly, and as shown in Figure 2, this centralising device is installed after fixing to be needed to carry out centering work with dynamometer machine, completes that can accurately to simulate the center of dynamometer machine after this centering work high.Will be after centralising device and dynamometer machine centering, the center height of simulation dynamometer machine is the vertical range of axis and the mounting base of described simulation axle.
Described centralising device and dynamometer machine centering method are:
As shown in Figure 3 and Figure 4, described centralising device 2 is fixed on for settling the dolly 3 of engine, through the sliding sleeve 22 on described centralising device 2 with to mid-game 23, and one end of simulation axle 6 is fixing with described dynamometer machine 1 with a simulation axle 6;
Mid-game 23 sides are inhaled dial gauge 5 on simulation axle 6 with magnetic stand, rotate dynamometer machine main shaft, with described dial gauge check respectively described dynamometer machine main shaft with described to coaxial deviation and angular deviation between mid-game;
Adjust height and the horizontal level of described dynamometer machine, make described centimeter check to coaxial deviation and angular deviation meet centering requirement.In the present embodiment, coaxial deviation and angular deviation are all less than 0.2mm, have so just met the centering requirement of this centralising device and dynamometer machine, think that this centralising device can be simulated the center of dynamometer machine accurately high.
Described centralising device and dolly centering method are:
After completing the centering of centralising device and dynamometer machine, engine is placed on the dolly that centralising device is housed, by adjusting the position of engine supporting leg and crossbeam, make engine driven end face and sleeve of the present invention substantially identical, carry out coaxality measurement and angular error measurement.
Coaxality measurement, inhales dial gauge on the sliding sleeve of this centralising device with magnetic stand, and rotational sleeve, measures each point of one week of engine driven axle installation position inner circle and observe the dial gauge number of degrees.By the position of vernier supporting leg and crossbeam, make the number of degrees of measuring dial gauge in one week process of inner circle be no more than 0.2mm, engine and coaxiality deviation of the present invention are less than 0.2mm.
Angular error, inhales dial gauge on the sliding sleeve of this centralising device with magnetic stand, and rotational sleeve is measured engine driven axial end apart from each point on the circumference of center of circle 50mm and observes the dial gauge number of degrees.By the position of vernier supporting leg and crossbeam, make the number of degrees of measuring dial gauge in one week process be no more than 0.2mm, i.e. engine and angular deviation of the present invention is less than 0.2mm.
Right alignment and angular error are measured and are all met after the condition of < 0.2mm, complete the centering of engine and centralising device.Because of centralising device, complete centering with dynamometer machine again, so the work of the centering of engine and dynamometer machine completes simultaneously.
The present invention not only can, for the centering of engine, also can relate in the detection field of right alignment and angular error measurement, as the multi-hole coaxial of some big machineries is measured for other.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (7)
1. engine is built a dolly centralising device, it is characterized in that: include dolly, centralising device and dynamometer machine; Described dolly and dynamometer machine are arranged on mounting base, and described centralising device is installed on described dolly;
On described dolly, be provided with engine supporting leg and crossbeam, by adjusting described engine supporting leg and crossbeam, can adjust the engine location being placed on dolly;
Described centralising device includes centralising device main body, locating piece, sliding sleeve and to mid-game; Described sliding sleeve rotates the upper end that is arranged at centralising device main body; Described to mid-game one end connection sliding sleeve, the other end is for connecting with engine driven dish; Described locating piece is arranged at centralising device main body with described dolly fixed position, is used for, with dolly, location is installed.
2. engine according to claim 1 is built dolly centralising device, it is characterized in that: the upper end of described centralising device main body is provided with outer tube, and described sliding sleeve is arranged in described outer tube and is rotatably assorted with described outer tube.
3. according to the engine described in any one in claim 1 or 2, build dolly centralising device, it is characterized in that: described centralising device main body is triangle, trapezoidal, rectangle or square-shaped frame shelf structure.
4. engine is built a dolly centralising device centering method, it is characterized in that: include centralising device and dynamometer machine centering method and centralising device and dolly centering method.
5. engine according to claim 4 is built dolly centralising device centering method, it is characterized in that: described centralising device and dynamometer machine centering method are:
Described centralising device is fixed on for settling the dolly of engine, with a simulation axle, through the sliding sleeve on described centralising device with to mid-game, and one end of simulation axle is fixed with described dynamometer machine;
Described, mid-game side is arranged at dial gauge on described simulation axle, rotates dynamometer machine main shaft, with described dial gauge check respectively described dynamometer machine main shaft with described to coaxial deviation and angular deviation between mid-game;
Adjust height and the horizontal level of described dynamometer machine, make described centimeter check to coaxial deviation and angular deviation meet centering requirement.
6. engine according to claim 4 is built dolly centralising device centering method, it is characterized in that: described centralising device and dolly centering method are:
Engine is placed on described dolly, by adjusting the position of engine supporting leg and crossbeam, makes the sliding sleeve of engine driven end face and described centralising device substantially identical; Carrying out coaxality measurement and angular error measures;
Described coaxality measurement, is arranged at dial gauge on described sliding sleeve, rotates sliding sleeve, measures the dial gauge number of degrees of engine driven axle installation position inner circle each point of a week;
The position of vernier supporting leg and crossbeam, makes the dial gauge number of degrees within meeting numerical value;
Described angular error is measured, and dial gauge is arranged on described sliding sleeve, rotates sliding sleeve, measures engine driven axial end apart from the dial gauge number of degrees of each point on the circumference of center of circle setting value; The position of vernier supporting leg and crossbeam, makes the dial gauge number of degrees within meeting numerical value.
7. engine according to claim 4 is built dolly centralising device centering method, it is characterized in that: after centralising device and dynamometer machine centering, the center height of simulation dynamometer machine is the vertical range of axis and the mounting base of described simulation axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415664.4A CN104155111B (en) | 2014-08-21 | 2014-08-21 | The centering method of dolly centralising device built by a kind of electromotor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415664.4A CN104155111B (en) | 2014-08-21 | 2014-08-21 | The centering method of dolly centralising device built by a kind of electromotor |
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| CN104155111A true CN104155111A (en) | 2014-11-19 |
| CN104155111B CN104155111B (en) | 2016-10-12 |
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| CN201410415664.4A Active CN104155111B (en) | 2014-08-21 | 2014-08-21 | The centering method of dolly centralising device built by a kind of electromotor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN105157984A (en) * | 2015-09-18 | 2015-12-16 | 湖南大学 | Full-automatic laboratory engine centering device and rack |
| CN107121290A (en) * | 2017-05-23 | 2017-09-01 | 沈阳巨人创新精工机械有限公司 | Engine test installs equipment and engine test installation system |
| CN107907037A (en) * | 2017-12-27 | 2018-04-13 | 广西玉柴机器股份有限公司 | The inspection frock of test-bed dynamometer machine concentricity uniformity |
| CN107991099A (en) * | 2017-12-29 | 2018-05-04 | 天津大学 | Engine and dynamometer machine centering device |
| CN109238723A (en) * | 2018-10-12 | 2019-01-18 | 无锡威孚高科技集团股份有限公司 | A kind of engine quick centering device |
| CN110682085A (en) * | 2019-10-31 | 2020-01-14 | 中船动力研究院有限公司 | Shafting centering method |
| CN111766071A (en) * | 2020-06-30 | 2020-10-13 | 东风商用车有限公司 | Pre-centering device and using method thereof |
| CN111766070A (en) * | 2020-06-30 | 2020-10-13 | 东风商用车有限公司 | Engine pre-centering device applied outside test room and application method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| CN109238723A (en) * | 2018-10-12 | 2019-01-18 | 无锡威孚高科技集团股份有限公司 | A kind of engine quick centering device |
| CN110682085A (en) * | 2019-10-31 | 2020-01-14 | 中船动力研究院有限公司 | Shafting centering method |
| CN110682085B (en) * | 2019-10-31 | 2021-11-16 | 中船动力研究院有限公司 | Shafting centering method |
| CN111766071A (en) * | 2020-06-30 | 2020-10-13 | 东风商用车有限公司 | Pre-centering device and using method thereof |
| CN111766070A (en) * | 2020-06-30 | 2020-10-13 | 东风商用车有限公司 | Engine pre-centering device applied outside test room and application method thereof |
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| CN104155111B (en) | 2016-10-12 |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
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