CN221224226U - Shafting alignment device for engine test - Google Patents
Shafting alignment device for engine test Download PDFInfo
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- CN221224226U CN221224226U CN202322933688.6U CN202322933688U CN221224226U CN 221224226 U CN221224226 U CN 221224226U CN 202322933688 U CN202322933688 U CN 202322933688U CN 221224226 U CN221224226 U CN 221224226U
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- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 230000007704 transition Effects 0.000 claims abstract description 39
- 238000005259 measurement Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The utility model discloses a shafting alignment device for an engine test, which belongs to the field of engine bench test detection and comprises a two-dimensional alignment instrument support, two alignment instruments arranged on the two-dimensional alignment instrument support at right angles, and an annular flywheel transition disc arranged on an engine flywheel, wherein a rotatable dynamometer alignment shaft is arranged on a dynamometer, the two-dimensional alignment instrument support is arranged at one end of the dynamometer alignment shaft during measurement, and measuring heads of the two alignment instruments respectively contact the flywheel transition disc surface and the inner circular side wall. The utility model can accurately complete the purpose of simultaneously aligning the axial direction and the radial direction in one measurement process, and has higher measurement process accuracy and safety, time saving and labor saving.
Description
Technical Field
The utility model belongs to the field of test and detection of engine benches, and particularly relates to a shafting alignment device for an engine test.
Background
When the engine is subjected to a factory test, a dynamometer is required to be used for calibrating or checking whether the performance index of the engine meets the requirement of an acceptance specification. After the engine is mounted on the adjustable rack, the engine is connected with the dynamometer fixed on the ground substrate, and the engine flywheel and the dynamometer output universal shaft ensure that the axle center of the engine crankshaft and the axle center of the dynamometer output shaft are on the same straight line. Because the same bench can test engines with different types, different cylinder numbers and different connection modes, the relative positions of the crank shaft axes of the engines are not fixed, and the engines belong to an integrated body assembled by multiple parts, tolerance accumulation of parts inevitably occurs after the assembly is completed, namely, the positions of the crank shaft axes of each engine with the same type relative to the shaft axes of the output shafts of the dynamometers are also deviated. If the axis is not aligned, the axis of the crankshaft of the engine and the axis of the output shaft of the dynamometer are not in the same straight line, so that the crankshaft is eccentric in the test process, and finally the engine is damaged.
The common alignment method in the existing engine test is that the universal output shaft of the dynamometer is directly connected with the engine, shafting alignment is carried out through handheld equipment, but the universal output shaft is not easy to fix, and the handheld equipment has great personal safety hidden trouble. The other is to align by means of a measuring instrument, for example, a tool is used for erecting a universal output shaft of the dynamometer, and a bolt mounting hole on a flange of the universal output shaft is used for clamping an instrument to measure the flywheel disc surface of the engine to align a shaft system; or after the universal output shaft of the dynamometer is disassembled, one end of the tool shaft is clamped in the output shaft hole of the dynamometer, the other end of the tool shaft is provided with the magnetic meter, the flywheel disc surface of the engine is measured, the axial coordinate is centered firstly, and then the radial coordinate is centered, so that the alignment purpose is achieved. However, during the measurement process, such design and operation easily cause the measurement base point to shift, resulting in inaccurate measurement centering. Therefore, an axle system alignment device for an engine test, which can achieve the purpose of simultaneously aligning the axial direction and the radial direction by one measurement, is urgently needed at present.
Disclosure of utility model
The utility model aims to provide a shafting alignment device for an engine test, which utilizes a device structure of two-dimensional shafting matched measurement to accurately center the axle center of an engine crankshaft and the axle center of an output shaft of a dynamometer at one time, can avoid the problem of deviation of the position of a measurement base point caused by repeated measurement, and can ensure accurate measurement and more convenient and safer operation.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a shafting alignment device for engine test, including the dynamometer machine alignment axle, install the epaxial two-dimensional alignment instrument support of dynamometer machine alignment, set up two alignment instruments on two-dimensional alignment instrument support at the right angle, and install the annular flywheel transition dish on the engine flywheel, the dynamometer machine alignment axle is installed on the dynamometer machine, the dynamometer machine alignment axle is rotatable, the one end of the two-dimensional alignment instrument support of dynamometer machine alignment axle is installed in the measurement, the gauge head of two alignment instruments contacts flywheel transition dish quotation and interior round lateral wall respectively.
The technical scheme of the utility model is further improved as follows: the two-dimensional alignment instrument support comprises an L-shaped support rod and a connecting rod, the alignment instrument is respectively arranged in the horizontal direction and the vertical direction of the L-shaped support rod, the two-dimensional alignment instrument support can adjust the extension amount along the radial direction of the flywheel transition disc, and the connecting rod is vertically arranged at one end, close to the flywheel transition disc, of an alignment shaft of the dynamometer during measurement.
The technical scheme of the utility model is further improved as follows: one end of the alignment shaft of the dynamometer passes through the clamping flange and is inserted into the shaft hole of the dynamometer to be connected with the dynamometer, and the alignment shaft of the dynamometer can stretch and slide along the horizontal axial direction.
The technical scheme of the utility model is further improved as follows: the dynamometer alignment shaft comprises a sleeved fixing rod and a telescopic rod, the fixing rod is inserted into the dynamometer shaft hole through the clamping flange and fixedly connected with the dynamometer, and the telescopic rod stretches and slides along the horizontal axial direction of the fixing rod and rotates.
The technical scheme of the utility model is further improved as follows: the telescopic link is close to flywheel transition dish one end and is equipped with the mounting groove that runs through the telescopic link body of rod, and two-dimensional alignment instrument support cooperatees with the mounting groove, is equipped with the communicating screw hole of with the mounting groove at telescopic link end face center, and fastening bolt passes the screw hole and fixes two-dimensional alignment instrument support on the dynamometer alignment axle.
The technical scheme of the utility model is further improved as follows: one end of the connecting rod is connected with the L-shaped supporting rod, the other end of the connecting rod is connected with the mounting groove in a detachable mode, and the extending amount of the connecting rod can be adjusted along the radial direction of the flywheel transition disc.
The technical scheme of the utility model is further improved as follows: the L-shaped supporting rod comprises a horizontal rod and a vertical rod, the rod bodies of the horizontal rod and the vertical rod are respectively provided with a mounting hole, and two alignment meters are respectively arranged in the two mounting holes.
The technical scheme of the utility model is further improved as follows: the connecting rod is provided with a plurality of through holes capable of being inserted, the fastening bolt penetrates through the threaded holes and the through holes to connect the two-dimensional alignment instrument support in the mounting groove, the through holes are coaxial with the threaded holes and the mounting groove, and the connecting rod is inserted along the radial direction of the flywheel transition disc to adjust the extending amount.
The technical scheme of the utility model is further improved as follows: the connecting rod is the telescopic link, and connecting rod one end is equipped with the mounting hole, and the other end is connected with L shape branch, and fastening bolt runs through screw hole and mounting hole and will two-dimensional alignment instrument support connection in the mounting groove, and the mounting hole is coaxial with screw hole and mounting groove, and the radial flexible adjustment projecting amount of connecting rod along the flywheel transition dish.
The technical scheme of the utility model is further improved as follows: the two alignment meters are provided with a post with external threads, the mounting hole is provided with internal threads, and the post is in threaded connection with the mounting hole.
By adopting the technical scheme, the utility model has the following technical progress:
Due to the fact that the device structure for measuring the two-dimensional shafting is adopted, through the cooperation of the flywheel transition disc, the rotatable dynamometer alignment shaft and the adjustable two-dimensional alignment instrument support, the axial dimension variable quantity and the radial dimension variable quantity of the flywheel transition disc can be accurately measured in one measuring process, the measurement is more accurate, and the two-dimensional alignment can be carried out in one measuring process, so that the shafting alignment of an engine and the dynamometer is completed, the problem of inaccurate secondary measuring precision is avoided, and the measuring mode is also faster and more convenient.
Because the handheld device is not needed to conduct shafting alignment in the measuring process, the problems of deviation of the measuring base point position and the like are avoided, the measuring result is more accurate, manpower and material resources are saved, and safety and stability are guaranteed.
Drawings
FIG. 1 is a schematic view of the alignment apparatus of the present utility model;
FIG. 2 is a schematic cross-sectional view of an alignment device of the present utility model;
FIG. 3 is an assembly view of an alignment device according to a first embodiment of the present utility model;
FIG. 4 is an assembly view of a second embodiment alignment device of the present utility model;
FIG. 5 is a schematic view of the alignment shaft of the dynamometer of the present utility model;
FIG. 6 is a schematic view of the alignment instrument of the present utility model;
the device comprises a power measuring machine, a flywheel transition disc, a clamping flange, a flywheel alignment shaft, a two-dimensional alignment instrument support, an alignment instrument, a fixing rod, a telescopic rod, a mounting groove, a threaded hole, a 13 fastening bolt, a 14L-shaped supporting rod, a 15 connecting rod, a 18 mounting hole, a19 through hole, a 20 mounting hole, a 8-1 and a pole column, wherein the power measuring machine comprises the power measuring machine, the flywheel transition disc, the clamping flange, the flywheel, the power measuring machine alignment shaft, the two-dimensional alignment instrument support, the alignment instrument, the fixing rod, the telescopic rod, the mounting groove, the threaded hole, the 13 fastening bolt, the 14L-shaped supporting rod, the 15 connecting rod, the 18 mounting hole, the 19 through hole, the 20 and the pole column.
Detailed Description
The utility model is further illustrated by the following examples:
As shown in fig. 1, the shafting alignment device for the engine test comprises a dynamometer 1 and a flywheel 2 arranged on the engine, wherein the dynamometer 1 is used for fixing a clamping flange 4 on a mounting flange surface of the dynamometer 1 through a fastening bolt. The original universal output shaft of the dynamometer 1 is removed and replaced by a rotatable dynamometer alignment shaft 6, the dynamometer alignment shaft 6 is of a structure capable of adjusting the length in a telescopic manner, the dynamometer alignment shaft can rotate around the shaft as the center, one end of the dynamometer alignment shaft penetrates through a hole of the clamping flange 4 to be fixed in a shaft hole of the dynamometer, and the other end of the dynamometer alignment shaft can axially adjust the length in the shaft hole of the dynamometer 1 in a telescopic manner along the horizontal axial direction. Because the flywheel 2 of different engines is different in size, different flywheel transition discs 3 are needed, the flywheel transition discs 3 are of annular structures with certain thickness, the flywheel transition discs 3 are high-precision measuring devices, the inner rings and the large-plane finish of the flywheel transition discs are formed by strictly controlling and processing, and the flywheel transition discs are fixedly arranged on the disc surface of the flywheel 2 through fastening bolts. One end of the dynamometer alignment shaft 6, which is close to the flywheel transition disc 3, is vertically provided with a two-dimensional alignment instrument support 7, and the two-dimensional alignment instrument support 7 is arranged into a structure with adjustable extension amount, so that the extension amount can be adjusted along the radial direction of the flywheel transition disc 3. The two-dimensional instrument support 7 comprises an L-shaped supporting rod 14 and a connecting rod 15, the alignment instruments 8 are respectively arranged in the horizontal direction and the vertical direction of the L-shaped supporting rod 14, and the two alignment instruments 8 are respectively contacted with the disc surface and the inner circular side wall of the measuring flywheel transition disc 3.
When measuring, the alignment shaft 6 of the dynamometer rotates and stretches and slides along the horizontal axial direction to drive the two-dimensional instrument support 7, the measuring head of the alignment instrument 8 on the vertical direction of the L-shaped supporting rod 14 carries out axial measurement on the disc surface of the flywheel transition disc 3, meanwhile, the two-dimensional instrument support 7 adjusts the protrusion quantity along the radial direction of the flywheel transition disc 3, the measuring head of the alignment instrument 8 on the horizontal direction carries out radial measurement on the inner circular side wall of the flywheel transition disc 3, the measuring heads of the two alignment instruments 8 respectively contact the disc surface and the inner circular side wall of the flywheel transition disc 3, when the radial dimension change quantity of the inner circular side wall of the flywheel transition disc 3 is not more than 0.2mm, the alignment work is completed, and the axle center of the engine crankshaft and the axle center of the output shaft of the dynamometer are indicated to be on the same straight line. Due to the adoption of the device structure for measuring the two-dimensional shafting in a matching manner, the two-dimensional alignment can be performed in real time in one measuring process, so that the shafting alignment of an engine and a dynamometer is completed, the measuring mode is more convenient, the measuring result is more accurate, and due to the fact that the shafting alignment is performed by a handheld device in the measuring process, manpower and material resources are saved, and the device is safer and more stable.
As shown in fig. 2 and 5, the alignment shaft 6 of the dynamometer is provided with a fixing rod 9 and a telescopic rod 10, one end of the fixing rod 9 passes through the clamping flange 4 and is inserted into the shaft hole of the dynamometer 1 to be fixedly connected with the dynamometer 1, the other end of the fixing rod is movably connected with the telescopic rod 10, and the telescopic rod 10 can stretch and slide and rotate along the horizontal axial direction of the fixing rod 9. The telescopic link 10 is close to flywheel transition dish one end and is equipped with the mounting groove 11 that runs through the telescopic link 10 body of rod, and the center of telescopic link 10 terminal surface is equipped with the screw hole 12 that cooperatees with fastening bolt 13, and screw hole 12 communicates with each other with mounting groove 11, and fastening bolt 13 passes screw hole 12 and fixes two-dimensional alignment instrument support 7 on dynamometer machine alignment axle 6.
As shown in fig. 3 and 6, for the first embodiment of the present utility model, the two-dimensional alignment instrument support 7 is provided with an L-shaped strut 14 and a connecting rod 15, the L-shaped strut 14 includes a horizontal rod and a vertical rod, both of which are provided with mounting holes 18, the mounting holes 18 are provided with internal threads, the alignment instrument 8 is provided with a post 8-1 having external threads, and the alignment instrument 8 is screwed with the mounting holes 18 through the post 8-1.
One end of the connecting rod 15 is connected with the L-shaped bracket 14, and the other end is detachably connected with the mounting groove 11. The connecting rod 15 is for pegging graft adjusting structure, a plurality of through-holes 19 that can peg graft have been vertically arranged to connecting rod 15 tip, after connecting rod 15 inserts mounting groove 11, through-hole 19 and screw hole 12 and mounting groove 11 are coaxial, fastening bolt 13 runs through screw hole 12 and through-hole 19 and connects two-dimensional alignment instrument support 7 in mounting groove 11, because connecting rod 15 adopts the structure that a plurality of through-holes 19 vertically arranged, connecting rod 15 can adjust the through-hole 19 position when being connected with mounting groove 11 according to the measurement demand, thereby adjust the projecting amount so as to measure the radial dimension of different engine flywheel transition dish 3 interior circle lateral walls in the radial with the grafting mode along flywheel transition dish 3.
As shown in fig. 4, in the second embodiment of the present utility model, the parts identical to those of the first embodiment are not repeated, the connecting rod 15 is configured as a telescopic rod, one end of the connecting rod 15 is provided with a mounting hole 20, the other end is connected with the L-shaped strut 14, the connecting rod 15 is inserted into the mounting groove 11, the mounting hole 20 is coaxial with the threaded hole 12 and the mounting groove 11, the fastening bolt 13 penetrates through the threaded hole 12 and the mounting hole 20 to fixedly connect the two-dimensional alignment instrument bracket 7 in the mounting groove 11, and the connecting rod 15 can be telescopic to adjust the protrusion according to the measurement requirement, so as to further measure the radial dimensions of the inner circular side walls of different flywheel transition discs 3. Such extending structure, because the device spare part need not frequently be dismantled, the operation is more convenient, has also significantly reduced the wearing and tearing between the part simultaneously.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides an experimental shafting alignment device of using of engine which characterized in that: the measuring instrument comprises a measuring instrument alignment shaft (6), a two-dimensional alignment instrument support (7) arranged on the measuring instrument alignment shaft (6), two alignment instruments (8) arranged on the two-dimensional alignment instrument support (7) at right angles, and an annular flywheel transition disc (3) arranged on an engine flywheel (2), wherein the measuring instrument alignment shaft (6) is arranged on the measuring instrument (1), the measuring instrument alignment shaft (6) is rotatable, the two-dimensional alignment instrument support (7) is arranged at one end of the measuring instrument alignment shaft (6) during measurement, and measuring heads of the two alignment instruments (8) are respectively contacted with the disc surface and the inner circular side wall of the flywheel transition disc (3).
2. The shafting alignment device for engine test of claim 1, wherein: the two-dimensional alignment instrument support (7) comprises an L-shaped supporting rod (14) and a connecting rod (15), an alignment instrument (8) is respectively arranged in the horizontal direction and the vertical direction of the L-shaped supporting rod (14), the two-dimensional alignment instrument support (7) can adjust the extension amount along the radial direction of the flywheel transition disc (3), and the connecting rod (15) is vertically arranged at one end, close to the flywheel transition disc (3), of the alignment shaft (6) of the dynamometer during measurement.
3. The shafting alignment device for engine test of claim 2, wherein: one end of a dynamometer alignment shaft (6) penetrates through the clamping flange (4) and is inserted into a shaft hole of the dynamometer to be connected with the dynamometer (1), and the dynamometer alignment shaft (6) can stretch and slide along the horizontal axial direction.
4. A shafting alignment device for engine testing according to claim 3, wherein: the dynamometer alignment shaft (6) comprises a sleeved fixing rod (9) and a telescopic rod (10), the fixing rod (9) penetrates through the clamping flange (4) to be inserted into a shaft hole of the dynamometer and fixedly connected with the dynamometer (1), and the telescopic rod (10) stretches and slides along the horizontal axial direction of the fixing rod (9) and rotates.
5. The shafting alignment device for engine test of claim 4, wherein: the telescopic rod (10) is close to the mounting groove (11) that the flywheel transition dish (3) one end was equipped with the body of rod that runs through telescopic rod (10), and two-dimensional alignment instrument support (7) cooperatees with mounting groove (11), is equipped with on telescopic rod (10) terminal surface with mounting groove (11) communicating screw hole (12), fastening bolt (13) pass screw hole (12) with two-dimensional alignment instrument support (7) fixed on dynamometer alignment axle (6).
6. The shafting alignment device for engine test of claim 5, wherein: one end of the connecting rod (15) is connected with the L-shaped supporting rod (14), the other end of the connecting rod is detachably connected with the mounting groove (11), and the extending amount of the connecting rod (15) can be adjusted along the radial direction of the flywheel transition disc (3).
7. The shafting alignment device for engine test according to any one of claims 2 to 6, wherein: the L-shaped supporting rod (14) comprises a horizontal rod and a vertical rod, the rod bodies of the horizontal rod and the vertical rod are respectively provided with a mounting hole (18), and the two alignment meters (8) are respectively arranged in the two mounting holes (18).
8. The shafting alignment device for engine test of claim 6, wherein: the connecting rod (15) is provided with a plurality of through holes (19) along the length direction, the fastening bolt (13) penetrates through the threaded holes (12) and the through holes (19) to connect the two-dimensional alignment instrument support (7) in the mounting groove (11), and the connecting rod (15) is inserted in the radial direction of the flywheel transition disc (3) to adjust the extension amount.
9. The shafting alignment device for engine test of claim 6, wherein: connecting rod (15) are scalable pole, and connecting rod (15) one end is equipped with mounting hole (20), and the other end is connected with L shape branch (14), and fastening bolt (13) run through screw hole (12) and mounting hole (20) and are connected two-dimensional alignment instrument support (7) in mounting groove (11), mounting hole (20) are coaxial with screw hole (12) and mounting groove (11), radial flexible regulation projecting amount of connecting rod (15) along flywheel transition dish (3).
10. The shafting alignment device for engine test of claim 7, wherein: the two alignment meters (8) are provided with a post (8-1) with external threads, the mounting holes (18) are provided with internal threads, and the post (8-1) is in threaded connection with the mounting holes (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322933688.6U CN221224226U (en) | 2023-10-31 | 2023-10-31 | Shafting alignment device for engine test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322933688.6U CN221224226U (en) | 2023-10-31 | 2023-10-31 | Shafting alignment device for engine test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221224226U true CN221224226U (en) | 2024-06-25 |
Family
ID=91576543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322933688.6U Active CN221224226U (en) | 2023-10-31 | 2023-10-31 | Shafting alignment device for engine test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221224226U (en) |
-
2023
- 2023-10-31 CN CN202322933688.6U patent/CN221224226U/en active Active
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