CN113607361B - Combined flexible flywheel vibration resistance testing process - Google Patents
Combined flexible flywheel vibration resistance testing process Download PDFInfo
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- CN113607361B CN113607361B CN202110692508.2A CN202110692508A CN113607361B CN 113607361 B CN113607361 B CN 113607361B CN 202110692508 A CN202110692508 A CN 202110692508A CN 113607361 B CN113607361 B CN 113607361B
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000008569 process Effects 0.000 title abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 230000001360 synchronised effect Effects 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 238000011084 recovery Methods 0.000 claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
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- 238000012935 Averaging Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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Abstract
The invention discloses a combined flexible flywheel vibration resistance testing process, which relates to the technical field of flywheel mass detection and comprises the following steps: installing a workpiece, limiting and fixing, performing transverse and longitudinal two-way vibration resistance test, judging the result and finishing the test. According to the invention, the horizontal vibration mechanism and the vertical vibration mechanism matched with the horizontal vibration mechanism are arranged on the detection platform, so that the integrated vibration resistance test is carried out on the horizontal direction of the combined flexible flywheel, and meanwhile, the output end of the driving motor drives the eccentric vibrating block to rotate on the lifting plate through the synchronous belt, so that the actual working condition of the combined flexible flywheel can be completely simulated, and the vibration resistance test result is more realistic; the obtained intensity test result is more visual and rapid through timely data information obtained by the camera in the horizontal vibration mechanism, and the standard vibration resistance value can be obtained by a single test piece sample, so that the cost investment of taking the average value of a plurality of test samples is reduced.
Description
Technical Field
The invention relates to the technical field of flywheel mass detection, in particular to a combined flexible flywheel vibration resistance testing process.
Background
The flywheel is a wheel-shaped energy accumulator with larger rotational inertia, which is arranged on a rotating shaft of a machine, improves the running uniformity of an engine and improves the capability of the engine to overcome transient overload by storing and releasing energy, a combined flexible flywheel with relatively smaller mass is adopted in most automatic transmission vehicle types, the power output characteristic of the engine is improved through smaller weight, and in the production process of the combined flexible flywheel, vibration resistance test is required to be carried out on single-batch products with the same model to ensure the quality qualification degree of the products.
However, in the process of vibration resistance test of the flywheel for a long time, I found that certain defects still exist in the prior art: 1. the split type test method can obtain respective vibration resistance standards, but can not obtain whether the whole assembled combined flexible flywheel still accords with the vibration resistance standards or not, and obviously, the tested result has distortion practicability, and various test equipment is required for the respective test, so that the cost investment is increased; 2. in order to ensure that the measured data are relatively accurate, a method of sequentially testing and averaging a plurality of split parts in the same batch is adopted, but the testing method is obviously strong in damage resistance, a large number of reworked workpieces after being tested are required to be repaired or even scrapped directly, and the averaging testing method is long in time consumption and serious in consumption, so that cost investment is further increased.
Disclosure of Invention
The invention aims to provide a combined flexible flywheel vibration resistance testing process which is used for solving the defects caused by the prior art.
A combined flexible flywheel vibration resistance testing process comprises the following steps:
s1: and (3) installing a workpiece: mounting a combined flexible flywheel to be tested of spot check on a detection platform, and ensuring that one side of the combined flexible flywheel with a reinforcing plate is in a feeding direction;
s2: limiting and fixing: the cylinder arranged on the horizontal vibration mechanism drives the threaded pipe to move forwards, so that the threaded pipe locks and limits one side of the combined flexible flywheel, which is not provided with the reinforcing plate;
s3: and (3) transverse and longitudinal bidirectional vibration resistance test: the combined flexible flywheel is subjected to regular and amplitude-adjustable horizontal vibration through the horizontal vibration mechanism, the structural strength of the whole combined flexible flywheel in the horizontal direction is further judged according to the elastic recovery degree of the reinforcing plate and the flywheel body on the combined flexible flywheel, meanwhile, the combined flexible flywheel is subjected to regular and amplitude-adjustable longitudinal vibration through the vertical vibration mechanism, and the structural strength of the combined flexible flywheel in the vertical direction is further judged according to the elastic recovery degree of the flywheel body on the combined flexible flywheel;
s4: and (3) judging results: judging the structural strength of the reinforcing plate according to the limit deformation data of the reinforcing plate observed by the horizontal vibration mechanism and judging the structural strength of the flywheel body according to the deformation difference value data of the edge of the flywheel body measured by the vertical vibration mechanism;
s5: and (3) after the test is finished: and after the test of the combined flexible flywheel of the spot check is finished, the combined flexible flywheel is disassembled, shaped and repaired.
Preferably, the other end of the threaded pipe is of a hollow groove structure, the inner wall of the hollow groove of the threaded pipe is matched with the end part of the horizontal vibration mechanism, and the outer end face of the threaded pipe is matched with the end face of the combined flexible flywheel.
Preferably, the horizontal vibration mechanism comprises a driving motor, a vibration disc, a vibration rod and a camera, wherein the driving motor is arranged on the detection platform, the output end of the driving motor is connected with a rotating shaft, the vibration disc is fixedly arranged on the inner side wall of the detection platform, a pushing piece is slidably arranged on the rotating shaft, push rods which are symmetrically arranged are slidably connected on the pushing piece, springs are respectively sleeved on the two sides of the pushing piece, a jacking piece is slidably arranged on the two sides of the end face of the rotating shaft respectively, the middle part of the jacking piece is slidably connected with the push rods, the vibration rod is arranged at the end part of the jacking piece, and the camera is arranged on the pushing piece.
Preferably, the vertical vibrating mechanism comprises a synchronous belt, an eccentric vibrating block and a laser ranging sensor, wherein a lifting plate is slidably arranged on the detection platform, the eccentric vibrating block is arranged on the side end of the lifting plate, the eccentric vibrating block is connected with a rotating shaft through the synchronous belt, the other side of the lifting plate is fixedly connected with a mounting plate, a cylinder is arranged on the mounting plate, the other end of the mounting plate is slidably arranged on the inner side wall of the detection platform, two symmetrically arranged guide rods are slidably connected on the mounting plate, a top spring is sleeved on the guide rods between the mounting plate and the detection platform, and the laser ranging sensor is arranged on the detection platform.
Preferably, the disk surface of the vibration disk is uniformly provided with concave and convex parts, and the vibration rods at two sides respectively correspond to the concave parts at one side and the convex parts at the other side.
Preferably, the inner diameter of the vibration plate is larger than the outer diameter of the rotating shaft.
Preferably, the detection end part of the laser ranging sensor corresponds to the edge of the flywheel body.
The invention has the advantages that:
(1) The horizontal vibration mechanism and the vertical vibration mechanism matched with the horizontal vibration mechanism are arranged on the detection platform, the output end of the driving motor drives the rotating shaft to rotate from low speed to high speed, the lifting plate is driven to vibrate in a lifting mode through two vibration rods corresponding to the concave and the convex respectively, the lifting piece on one side and the lifting piece on the other side always keep opposite vibration while rotating, further the horizontal speed change impact detection is carried out on the side end of the reinforcing plate by the middle position of the lifting piece, meanwhile, the variable intensity vibration operation is carried out on the side disc surface of the flywheel body by the two ends of the lifting piece, the integrated vibration resistance test is carried out on the horizontal direction of the combined flexible flywheel, meanwhile, the output end of the driving motor drives the eccentric vibration block to rotate on the lifting plate through the synchronous belt, the lifting plate is driven to vibrate in a lifting mode on the detection platform, the front-back deformation difference of the edge in the vertical direction is accurately measured through the laser ranging sensor, and the vibration resistance test result is more realistic;
(2) The method has the advantages that the limit deformation state of the reinforcing plate in the horizontal direction is judged during the variable speed impact operation through the timely data information obtained by the camera in the horizontal vibration mechanism, the recovery amount of the edge of the flywheel body in the vertical direction is judged during the variable intensity vibration operation through the laser ranging sensor in the vertical vibration mechanism, the obtained intensity test result is more visual and rapid, the standard vibration resistance value can be obtained by a single test piece sample, and the cost input of taking the average value of a plurality of test samples is reduced.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a schematic structural diagram of the whole detection platform in the present invention.
Fig. 3 is an assembly schematic diagram of the horizontal vibration mechanism and the vertical vibration mechanism in the present invention.
Fig. 4 is an assembly schematic diagram of a horizontal vibration mechanism and a part of the structure in the present invention.
Fig. 5 is a schematic structural view of a horizontal vibration mechanism according to the present invention.
The device comprises a 1-detection platform, a 2-cylinder, a 3-threaded pipe, a 4-horizontal vibration mechanism, a 5-vertical vibration mechanism 401-driving motor, a 402-vibration disc, a 403-vibration rod, a 404-camera, a 405-rotating shaft, a 406-pushing piece, a 407-push rod, a 408-spring, a 409-pushing piece, a 410-indent, a 411-bulge, a 51-synchronous belt, a 52-eccentric vibration block, a 53-laser ranging sensor, a 54-lifting plate, a 55-mounting plate, a 56-guide rod and a 57-pushing spring.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 5, a combined flexible flywheel vibration resistance testing process includes the following steps:
s1: and (3) installing a workpiece: the combined flexible flywheel to be tested of the spot check is arranged on the detection platform 1, and the feeding direction of one side with the reinforcing plate is ensured;
s2: limiting and fixing: the cylinder 2 arranged on the horizontal vibration mechanism 4 drives the threaded pipe 3 to move forwards, so that the threaded pipe 3 locks and limits one side of the combined flexible flywheel, which is not provided with the reinforcing plate;
s3: and (3) transverse and longitudinal bidirectional vibration resistance test: the combined flexible flywheel is subjected to regular and amplitude-adjustable horizontal vibration through the horizontal vibration mechanism 4, the structural strength of the whole combined flexible flywheel in the horizontal direction is further judged according to the elastic recovery degree of the reinforcing plate and the flywheel body on the combined flexible flywheel, meanwhile, the combined flexible flywheel is subjected to regular and amplitude-adjustable longitudinal vibration through the vertical vibration mechanism 5, and the structural strength of the combined flexible flywheel in the vertical direction is further judged according to the elastic recovery degree of the flywheel body on the combined flexible flywheel;
s4: and (3) judging results: judging the structural strength of the reinforcing plate according to the limit deformation data of the reinforcing plate observed by the horizontal vibration mechanism 4 and judging the structural strength of the flywheel body according to the deformation difference data of the edge of the flywheel body measured by the vertical vibration mechanism 5;
s5: and (3) after the test is finished: and after the test of the combined flexible flywheel of the spot check is finished, the combined flexible flywheel is disassembled, shaped and repaired.
In this embodiment, the other end of the threaded tube 3 is a hollow groove structure, and the inner wall of the hollow groove is matched with the end of the horizontal vibration mechanism 4, and the outer end face of the threaded tube 3 is matched with the end face of the combined flexible flywheel.
It should be noted that the end part of the threaded pipe 3 connected with the air cylinder 2 is provided with an adjustable locking nut, which is suitable for positioning the combined flexible flywheel with different specifications and models.
In this embodiment, the horizontal vibration mechanism 4 includes driving motor 401, vibration dish 402, vibratory rod 403 and camera 404, driving motor 401 installs on testing platform 1, and driving motor 401's output is connected with pivot 405, vibration dish 402 fixed mounting is provided with pushing away piece 406 on testing platform 1's the inside wall in the pivot 405, sliding connection has two push rods 407 of symmetry setting on pushing away the piece 406, all the cover in pushing away the both sides of piece 406 is equipped with spring 408 on the push rod 407, and the terminal surface both sides of pivot 405 are provided with liftout piece 409 in the sliding way respectively, liftout piece 409's middle part and push rod 407 looks sliding connection, vibratory rod 403 sets up in liftout piece 409's tip, the camera 404 is installed on pushing away the piece 406.
In this embodiment, the vertical vibration mechanism 5 includes hold-in range 51, eccentric vibrating block 52 and laser rangefinder sensor 53, the last slip of testing platform 1 is provided with lifter plate 54, eccentric vibrating block 52 installs on the side of lifter plate 54, passes through between eccentric vibrating block 52 and the pivot 405 hold-in range 51 links to each other, and lifter plate 54's opposite side fixedly connected with mounting panel 55, the cylinder is installed on mounting panel 55, and mounting panel 55's the other end slip sets up on testing platform 1's inside wall, and sliding connection has two guide bars 56 of symmetry setting on mounting panel 55, the cover is equipped with top spring 57 between mounting panel 55 and testing platform 1 on the guide bar 56, laser rangefinder sensor 53 installs on testing platform 1.
In this embodiment, the concave 410 and the convex 411 are uniformly distributed on the surface of the vibration plate 402, and the vibration rods 403 on both sides respectively correspond to the concave 410 on one side and the convex 411 on the other side.
The driving motor 401 is a servo motor, the camera 404 is SY8031, and the laser ranging sensor 53 is LRFS-0040-1.
In this embodiment, the inner diameter of the vibration plate 402 is larger than the outer diameter of the rotating shaft 405.
Further, the detection end of the laser ranging sensor 53 corresponds to the edge of the flywheel body.
Working process and principle: in the subsequent process of installing the combined flexible flywheel to be tested on the detection platform 1, firstly, adjusting the installation position of the threaded pipe 3 on the output end of the air cylinder 2 according to the model of the flexible flywheel, then starting the air cylinder 2 to reset the output end, pulling the hollow groove end of the threaded pipe 3 to finish positioning the flexible flywheel, and at the moment, two smooth transition ends of the ejector 409 in the horizontal vibration mechanism 4 are abutted against the side end disc surface of the flywheel body under the action of the elasticity of the spring 408, and the side end of the middle position of the ejector 409 is abutted against the side end surface of the reinforcing plate;
immediately, the driving motor 401 is started to drive the rotating shaft 405 to rotate from low speed to high speed, the pushing piece 406 and the push rod 407 are used for driving the ejector piece 409 to continuously rotate on the side end face of the flywheel body, in the process, two vibrating rods 403 corresponding to the concave 410 and the convex 411 are arranged on two sides of the vibrating disc 402 respectively, so that the ejector piece 409 on one side and the ejector piece 409 on the other side always keep opposite vibration while rotating, further, the speed change impact detection is carried out on the side end of the reinforcing plate by the middle position of the ejector piece 409, meanwhile, the variable strength horizontal vibration operation is carried out on the side surface of the flywheel body by the two ends of the ejector piece 409, the test result of the reinforcing plate is judged by the timely data information obtained by the camera 404, and once the recovery quantity data of the reinforcing plate is not completely recovered or exceeds the deformation requirement during the speed change impact operation, namely, the reinforcing plate and the flywheel body on the combined flexible flywheel are considered to reach the limit deformation state in the horizontal direction;
and the test result of the flywheel body in the vertical direction is judged by the display result of the laser ranging sensor 53 in the vertical vibration mechanism 5, once the variable intensity vibration operation is carried out, the eccentric vibration block 52 is driven to rotate on the lifting plate 54 along with the output end of the driving motor 401 through the synchronous belt 51, the lifting plate 54 is driven to lift and vibrate on the detection platform 1, then the to-be-tested combined flexible flywheel mounted on the rotating shaft 405 is driven to synchronously follow up, the edge of the combined flexible flywheel in the vertical direction is subjected to vibration deformation, after the driving motor 401 is stopped, if the recovery amount of the edge of the flywheel body is not completely recovered or exceeds the deformation requirement, the front-back deformation difference value of the edge is accurately measured through the laser ranging sensor 53, namely, the unrecoverable deformation is confirmed under the rotating speed, and the flywheel body in the combined flexible flywheel reaches the deformation limit state.
Based on the above, the horizontal vibration mechanism 4 and the vertical vibration mechanism 5 matched with the horizontal vibration mechanism 4 are arranged on the detection platform 1, the output end of the driving motor 401 drives the rotating shaft 405 to rotate from low speed to high speed, the two vibration rods 403 respectively corresponding to the concave 410 and the convex 411 enable the material ejection piece 409 to rotate while the material ejection piece 409 and the material ejection piece 409 on the other side keep opposite vibration all the time, further the horizontal direction variable speed impact detection is carried out on the side end of the reinforcing plate by the middle position of the material ejection piece 409, meanwhile, the variable intensity vibration operation is carried out on the side disc surface of the flywheel body by the two ends of the material ejection piece 409, the integrated vibration resistance test is carried out on the horizontal direction of the combined flexible flywheel, meanwhile, the output end of the driving motor 401 drives the eccentric vibration block 52 to rotate on the lifting plate 54 through the synchronous belt 51, the lifting plate 54 is driven to vibrate in a lifting mode on the detection platform 1, the front-rear deformation difference of the edge in the vertical direction is accurately measured through the laser sensor 53, and the actual vibration resistance test result of the combined flexible flywheel can be more true;
the limit deformation state of the reinforcing plate in the horizontal direction during the variable speed impact operation is judged through the timely data information obtained by the camera 404 in the horizontal vibration mechanism 4, and the recovery amount of the edge of the flywheel body in the vertical direction during the variable intensity vibration operation is judged through the laser ranging sensor 53 in the vertical vibration mechanism 5, so that the obtained strength test result is more visual and rapid, the standard vibration resistance value can be obtained by a single test piece sample, and the cost input of taking the average value of a plurality of test samples is reduced.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (5)
1. The method for testing the vibration resistance of the combined flexible flywheel is characterized by comprising the following steps of:
s1: and (3) installing a workpiece: mounting a combined flexible flywheel to be tested of spot check on a detection platform (1) to ensure that one side with a reinforcing plate is in a feeding direction;
s2: limiting and fixing: the threaded pipe (3) is driven to move forwards by an air cylinder (2) arranged on the vertical vibration mechanism (5), so that the threaded pipe (3) performs locking limit on one side of the combined flexible flywheel, which is not provided with the reinforcing plate;
s3: and (3) transverse and longitudinal bidirectional vibration resistance test: the combined flexible flywheel is subjected to regular and amplitude-adjustable horizontal vibration through the horizontal vibration mechanism (4), the structural strength of the whole combined flexible flywheel in the horizontal direction is further judged according to the elastic recovery degree of the reinforcing plate and the flywheel body on the combined flexible flywheel, meanwhile, the combined flexible flywheel is subjected to regular and amplitude-adjustable longitudinal vibration through the vertical vibration mechanism (5), and the structural strength of the combined flexible flywheel in the vertical direction is further judged according to the elastic recovery degree of the flywheel body on the combined flexible flywheel;
the horizontal vibration mechanism (4) comprises a driving motor (401), a vibration disc (402), a vibration rod (403) and a camera (404), wherein the driving motor (401) is installed on the detection platform (1), the output end of the driving motor (401) is connected with a rotating shaft (405), the vibration disc (402) is fixedly installed on the inner side wall of the detection platform (1), a pushing piece (406) is slidably arranged on the rotating shaft (405), two symmetrically-arranged push rods (407) are slidably connected on the pushing piece (406), springs (408) are sleeved on the two sides of the pushing piece (406), ejector pieces (409) are slidably arranged on the two sides of the end face of the rotating shaft (405), the middle part of the ejector pieces (409) is slidably connected with the push rods (407), the vibration rod (403) is arranged at the end part of the ejector pieces (409), and the camera (404) is installed on the pushing piece (406).
The vertical vibration mechanism (5) comprises a synchronous belt (51), an eccentric vibration block (52) and a laser ranging sensor (53), wherein a lifting plate (54) is arranged on the detection platform (1) in a sliding mode, the eccentric vibration block (52) is installed on the side end of the lifting plate (54), the eccentric vibration block (52) is connected with a rotating shaft (405) through the synchronous belt (51), the other side of the lifting plate (54) is fixedly connected with a mounting plate (55), the air cylinder (2) is installed on the mounting plate (55), the other end of the mounting plate (55) is arranged on the inner side wall of the detection platform (1) in a sliding mode, two symmetrically arranged guide rods (56) are connected on the mounting plate (55) in a sliding mode, a top spring (57) is sleeved between the mounting plate (55) and the detection platform (1), and the laser ranging sensor (53) is installed on the detection platform (1).
S4: and (3) judging results: judging the structural strength of the reinforcing plate according to the limit deformation data of the reinforcing plate observed by the horizontal vibration mechanism (4), and judging the structural strength of the flywheel body according to the deformation difference data of the edge of the flywheel body measured by the vertical vibration mechanism (5);
s5: and (3) after the test is finished: and after the test of the combined flexible flywheel of the spot check is finished, the combined flexible flywheel is disassembled, shaped and repaired.
2. The method for testing vibration resistance of a combined flexible flywheel of claim 1, wherein the method comprises the steps of: the other end of the threaded pipe (3) is of a hollow groove structure, the inner wall of the hollow groove of the threaded pipe is matched with the end part of the horizontal vibration mechanism (4), and the outer end face of the threaded pipe (3) is matched with the end face of the combined flexible flywheel.
3. The method for testing vibration resistance of a combined flexible flywheel of claim 1, wherein the method comprises the steps of: the disc surface of the vibration disc (402) is uniformly provided with a concave (410) and a convex (411), and the vibration rods (403) at two sides respectively correspond to the concave (410) at one side and the convex (411) at the other side.
4. The method for testing vibration resistance of a combined flexible flywheel of claim 1, wherein the method comprises the steps of: the inner diameter of the vibration disk (402) is larger than the outer diameter of the rotating shaft (405).
5. The method for testing vibration resistance of a combined flexible flywheel of claim 1, wherein the method comprises the steps of: the detection end part of the laser ranging sensor (53) corresponds to the edge of the flywheel body.
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| CN203758713U (en) * | 2014-03-21 | 2014-08-06 | 东风本田发动机有限公司 | Vibration testing stand and amplitude adding mechanism thereof |
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| CN212779177U (en) * | 2020-06-22 | 2021-03-23 | 芜湖东光大华机械制造有限公司 | Flatness detection mechanism of flywheel |
| CN112595503A (en) * | 2020-11-26 | 2021-04-02 | 浙江晟克科技有限公司 | Torsional fatigue test driving mechanism, testing machine, testing method and storage medium |
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2021
- 2021-06-22 CN CN202110692508.2A patent/CN113607361B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203758713U (en) * | 2014-03-21 | 2014-08-06 | 东风本田发动机有限公司 | Vibration testing stand and amplitude adding mechanism thereof |
| CN207689092U (en) * | 2017-12-13 | 2018-08-03 | 天津格特斯检测设备技术开发有限公司 | High-frequency vibration pulse test bench |
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