CN220455058U - Stretching vibration testing device for engine connecting rod - Google Patents

Abstract

The utility model relates to the technical field of engines, in particular to a tensile vibration testing device for an engine connecting rod, which can test torsional vibration of the connecting rod, and the testing result is more comprehensive; the hydraulic device comprises a bottom plate, a hydraulic cylinder and a tension sensor, wherein the hydraulic cylinder is arranged on the bottom plate, and the tension sensor is arranged on the moving end of the hydraulic cylinder; still including deciding the slip table, moving the slip table, actuating mechanism and two loading components, decide the slip table and install on the bottom plate, one loading component installs on deciding the slip table, loading components is on deciding the slip table lateral shifting, moves slip table longitudinal sliding mounting on the bottom plate, moves the slip table and is connected with tension sensor, and another loading component installs on moving the slip table, another loading component is on deciding the slip table lateral shifting, two loading components connect the both ends of engine connecting rod respectively, and actuating mechanism installs on the bottom plate, and actuating mechanism is located decides the slip table and moves between the slip table, and actuating mechanism drives two loading components and twists reverse while lateral vibration.

Description

Stretching vibration testing device for engine connecting rod

Technical Field

The utility model relates to the technical field of engines, in particular to a tensile vibration testing device for an engine connecting rod.

Background

When the engine is produced, the connecting rod of the engine is required to be subjected to tensile vibration test, various testing devices are proposed in the prior art, for example, a tensile vibration testing tool for the connecting rod of the engine is provided in Chinese utility model patent with the patent number of ZL202021612348.3, an existing tensile testing machine is utilized and combined with a vibration device, a set of testing tool structure matched with the connecting rod of the engine is designed, and the connecting rod of the engine can be fixed by matching with the tensile and vibration testing device, so that the connecting rod of the engine can be directly tested through a transmission principle.

But this test fixture is installed on vibration experiment machine, and the connecting rod vibration experiment machine carries out vibration experiment to the connecting rod through the frock after loading the connecting rod, and traditional vibration experiment machine's vibration effect is more single, can not make the connecting rod carry out torsional vibration test, causes the test result not comprehensive enough.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a tensile vibration testing device for an engine connecting rod, which can enable the connecting rod to perform torsional vibration testing and has more comprehensive testing results.

The utility model relates to a tensile vibration testing device for an engine connecting rod, which comprises a bottom plate, a hydraulic cylinder and a tension sensor, wherein the hydraulic cylinder is arranged on the bottom plate; the device comprises a base plate, a fixed sliding table, a movable sliding table, a driving mechanism and two loading components, wherein the fixed sliding table is arranged on the base plate, one loading component is arranged on the fixed sliding table and moves transversely on the fixed sliding table, the movable sliding table is longitudinally and slidably arranged on the base plate, the movable sliding table is connected with a tension sensor, the other loading component is arranged on the movable sliding table and moves transversely on the fixed sliding table, the two loading components are respectively connected with two ends of an engine connecting rod, the driving mechanism is arranged on the base plate, the driving mechanism is positioned between the fixed sliding table and the movable sliding table, and the driving mechanism drives the two loading components to vibrate transversely while twisting; during detection work, two ends of an engine connecting rod are respectively fixed on two loading assemblies, a hydraulic cylinder contracts and pulls a sliding table, the connecting rod is stretched, tension is measured through a tension sensor, the connecting rod is subjected to tensile test, after the tensile test is completed, the hydraulic cylinder is loosened, a driving mechanism is started, the driving mechanism drives the two loading assemblies to vibrate transversely while twisting, so that the connecting rod is subjected to vibration test, the vibration mode is more complex, the vibration effect is better, the connecting rod can be subjected to torsional vibration test, and the test result is more comprehensive.

Preferably, the fixed sliding table comprises a supporting table and a first sliding rail, the supporting table is arranged on the bottom plate, the first sliding rail is transversely arranged on the supporting table, and a loading assembly is slidably arranged on the first sliding rail; the supporting table supports the loading assembly, and the sliding rail is used for limiting and guiding the loading assembly, so that the loading assembly can transversely vibrate along the sliding rail under the driving of the driving mechanism, and vibration test is performed.

Preferably, the movable sliding table comprises a second sliding rail, a sliding plate, a sliding block and a third sliding rail, wherein the second sliding rail is longitudinally arranged on the bottom plate, the sliding plate is slidably arranged on the second sliding rail through the sliding block, the third sliding rail is transversely arranged on the sliding plate, and the sliding plate is connected with the movable sliding table; the sliding plate longitudinally slides along the sliding rail II through the sliding block, so that the hydraulic cylinder can pull the sliding plate to be far away from the supporting table to stretch the engine pull rod, and the sliding rail III is used for limiting and guiding the other loading assembly, so that the loading assembly can transversely vibrate along the sliding rail III under the driving of the driving mechanism, and vibration test is performed.

Preferably, the loading assembly comprises a transverse slide plate, a second sliding block, an axle seat and a mounting frame, wherein the transverse slide plate is slidably arranged on the first sliding rail or the third sliding rail through the second sliding block, the axle seat is rotatably arranged on the transverse slide plate, the axle seat is in transmission connection with a driving mechanism, the driving mechanism drives the axle seat to rotate, a limiting part of the axle seat is arranged on the transverse slide plate, the limiting part limits the torsion angle of the axle seat, the mounting frame is arranged on the axle seat, and the mounting frame is used for connecting the end part of the connecting rod; the driving mechanism drives the shaft seat to rotate, so that the end part of the connecting rod is twisted by the mounting frame, and when the rotation of the shaft seat is limited by the limiting component, the shaft seat drives the transverse sliding plate to move along the first sliding rail or the third sliding rail, thereby realizing the torsion and the movement of the shaft seat and driving the connecting rod to perform torsion and vibration.

Preferably, the device also comprises two torsion springs, wherein the two torsion springs are respectively and elastically connected with the two shaft seats and the two transverse sliding plates; the elasticity of the two torsion springs enables the two shaft seats to reset in an unstressed state, and practicality is improved.

Preferably, the limiting component is two blocking blocks, the two blocking blocks are arranged on the transverse sliding plate, the two blocking blocks are symmetrically positioned at the outer sides of the shaft seat, and the two blocking blocks limit and block the swing arm connected with the driving mechanism on the shaft seat; the swing arms of the shaft seat are limited and blocked by the two blocking blocks, so that the limit on the torsion angle of the shaft seat is realized, and the structure is simple and the practicability is good.

Preferably, the loading assembly comprises a sliding groove, a sliding seat, two pull rods, a driving motor, a rocker arm and a push rod, wherein the sliding groove is transversely arranged in the middle of the fixed sliding table and the movable sliding table, the sliding seat is slidably arranged in the sliding groove, two ends of the sliding seat are respectively and rotatably connected with the inner ends of the two pull rods, the outer ends of the two pull rods are respectively and rotatably connected with the swing arms of the two shaft seats, the driving motor is arranged on the bottom plate, the rocker arm is arranged on an output shaft of the driving motor and rotatably connected with one end of the push rod, and the other end of the push rod is rotatably connected with the sliding seat; the driving motor drives the rocker arm to rotate, the rocker arm drives the sliding seat to reciprocate along the sliding groove through the push rod, the sliding seat drives the two shaft seats to rotate and move through the two pull rods, a vibrating power source is provided for the whole device, and the driving effect is good.

Compared with the prior art, the utility model has the beneficial effects that: during detection work, two ends of an engine connecting rod are respectively fixed on two loading assemblies, a hydraulic cylinder contracts and pulls a sliding table, the connecting rod is stretched, tension is measured through a tension sensor, the connecting rod is subjected to tensile test, after the tensile test is completed, the hydraulic cylinder is loosened, a driving mechanism is started, the driving mechanism drives the two loading assemblies to vibrate transversely while twisting, so that the connecting rod is subjected to vibration test, the vibration mode is more complex, the vibration effect is better, the connecting rod can be subjected to torsional vibration test, and the test result is more comprehensive.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view of the axial structure of the present utility model;

FIG. 4 is a schematic view of the structure of the drive mechanism and the loading assembly;

FIG. 5 is a schematic view of an exploded view of a loading assembly or the like;

FIG. 6 is a schematic view of a portion of the structure of the loader assembly;

the reference numerals in the drawings: 1. a bottom plate; 2. a hydraulic cylinder; 3. a tension sensor; 4. a sliding table is fixed; 5. a movable slipway; 6. a driving mechanism; 7. a support table; 8. a first slide rail; 9. a second slide rail; 10. a slide plate; 11. a slide block; 12. a sliding rail III; 13. a transverse slide plate; 14. a second slide block; 15. a shaft seat; 16. a mounting frame; 17. a torsion spring; 18. a blocking piece; 19. a chute; 20. a slide; 21. a pull rod; 22. a driving motor; 23. a rocker arm; 24. a push rod.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Examples

As shown in fig. 1 and 2, a tensile vibration testing device for an engine connecting rod comprises a base plate 1, a hydraulic cylinder 2 and a tension sensor 3, wherein the hydraulic cylinder 2 is arranged on the base plate 1, and the tension sensor 3 is arranged on the moving end of the hydraulic cylinder 2; the automatic transmission device is characterized by further comprising a fixed sliding table 4, a movable sliding table 5, a driving mechanism 6 and two loading components, wherein the fixed sliding table 4 is arranged on the bottom plate 1, one loading component is arranged on the fixed sliding table 4, the loading components transversely move on the fixed sliding table 4, the movable sliding table 5 is longitudinally and slidably arranged on the bottom plate 1, the movable sliding table 5 is connected with the tension sensor 3, the other loading component is arranged on the movable sliding table 5, the other loading component transversely moves on the fixed sliding table 4, the two loading components are respectively connected with two ends of an engine connecting rod, the driving mechanism 6 is arranged on the bottom plate 1, the driving mechanism 6 is positioned between the fixed sliding table 4 and the movable sliding table 5, and the driving mechanism 6 drives the two loading components to transversely vibrate while twisting.

During detection work, two ends of an engine connecting rod are respectively fixed on two loading assemblies, the hydraulic cylinder 2 contracts and pulls the movable sliding table 5, the connecting rod is stretched, meanwhile, the tension is measured through the tension sensor 3, the connecting rod is subjected to tensile test, after the tensile test is completed, the hydraulic cylinder 2 is loosened, the driving mechanism 6 is started, the driving mechanism 6 drives the two loading assemblies to vibrate transversely while twisting, so that the connecting rod is subjected to vibration test, the vibration mode is more complex, the vibration effect is better, the connecting rod can be subjected to torsional vibration test, and the test result is more comprehensive.

As shown in fig. 3 to 6, the fixed sliding table 4 comprises a supporting table 7 and a first sliding rail 8, the supporting table 7 is mounted on the bottom plate 1, the first sliding rail 8 is transversely arranged on the supporting table 7, and a loading assembly is slidably mounted on the first sliding rail 8; the movable sliding table 5 comprises a second sliding rail 9, a sliding plate 10, a sliding block 11 and a third sliding rail 12, wherein the second sliding rail 9 is longitudinally arranged on the bottom plate 1, the sliding plate 10 is slidably arranged on the second sliding rail 9 through the sliding block 11, the third sliding rail 12 is transversely arranged on the sliding plate 10, and the sliding plate 10 is connected with the movable sliding table 5; the loading assembly comprises a transverse slide plate 13, a second slide block 14, an axle seat 15 and a mounting frame 16, wherein the transverse slide plate 13 is slidably arranged on a first slide rail 8 or a third slide rail 12 through the second slide block 14, the axle seat 15 is rotatably arranged on the transverse slide plate 13, the axle seat 15 is in transmission connection with the driving mechanism 6, the driving mechanism 6 drives the axle seat 15 to rotate, a limiting part of the axle seat 15 is arranged on the transverse slide plate 13, the limiting part limits the torsion angle of the axle seat 15, the mounting frame 16 is arranged on the axle seat 15, and the mounting frame 16 is used for connecting the end part of the connecting rod; the device also comprises two torsion springs 17, wherein the two torsion springs 17 are respectively and elastically connected with the two shaft seats 15 and the two transverse sliding plates 13; the limiting component is two blocking blocks 18, the two blocking blocks 18 are arranged on the transverse sliding plate 13, the two blocking blocks 18 are symmetrically arranged on the outer side of the shaft seat 15, and the two blocking blocks 18 limit and block the swing arm connected with the driving mechanism 6 on the shaft seat 15.

The supporting table 7 supports the transverse sliding plate 13, the first slide rail 8 is used for conducting limit guiding on the transverse sliding plate 13, the transverse sliding plate 13 can transversely vibrate along the first slide rail 8 under the driving of the driving mechanism 6, vibration testing is conducted, the sliding plate 10 longitudinally slides along the second slide rail 9 through the sliding block 11, the hydraulic cylinder 2 can pull the sliding plate 10 to be far away from the supporting table 7 so as to stretch an engine pull rod, the third slide rail 12 is used for conducting limit guiding on the other transverse sliding plate 13, the transverse sliding plate 13 can transversely vibrate along the third slide rail 12 under the driving of the driving mechanism 6, vibration testing is conducted, the driving mechanism 6 drives the shaft seat 15 to rotate, therefore the end portion of the connecting rod is enabled to be twisted by the mounting frame 16, after the rotation of the shaft seat 15 is limited by the limiting component, the shaft seat 15 drives the transverse sliding plate 13 to move along the first slide rail 8 or the third slide rail 12, torsion and movement of the shaft seat 15 are achieved, the connecting rod is driven to conduct torsion and vibration, the elasticity of the two torsion springs 17 enables the two shaft seats 15 to reset when the two blocking blocks 18 block the swing arms 15 in an unstressed state, and limit of the torsion angles of the shaft seats 15 is achieved.

As shown in fig. 4, the loading assembly comprises a chute 19, a sliding seat 20, two pull rods 21, a driving motor 22, a rocker arm 23 and a push rod 24, wherein the chute 19 is transversely arranged in the middle of the fixed sliding table 4 and the movable sliding table 5, the sliding seat 20 is slidably arranged in the chute 19, two ends of the sliding seat 20 are respectively and rotatably connected with the inner ends of the two pull rods 21, the outer ends of the two pull rods 21 are respectively and rotatably connected with the swing arms of the two shaft seats 15, the driving motor 22 is arranged on the bottom plate 1, the rocker arm 23 is arranged on an output shaft of the driving motor 22, the rocker arm 23 is rotatably connected with one end of the push rod 24, and the other end of the push rod 24 is rotatably connected with the sliding seat 20.

The driving motor 22 drives the rocker arm 23 to rotate, the rocker arm 23 drives the sliding seat 20 to reciprocate along the sliding groove 19 through the push rod 24, the sliding seat 20 drives the two shaft seats 15 to rotate and move through the two pull rods 21, a vibration power source is provided for the whole device, and the driving effect is good.

As shown in fig. 1 to 6, in the tensile vibration testing device for an engine connecting rod, when the tensile vibration testing device is in operation, firstly, two ends of the engine connecting rod are respectively fixed on two mounting frames 16, then a hydraulic cylinder 2 contracts and pulls a sliding plate 10, the connecting rod is stretched, a tensile force is measured through a tension sensor 3, the connecting rod is subjected to tensile test, after the tensile test is completed, the hydraulic cylinder 2 is loosened, then a driving motor 22 is started, the driving motor 22 drives a rocker 23 to rotate, the rocker 23 drives a sliding seat 20 to reciprocate along a sliding groove 19 through a push rod 24, the sliding seat 20 drives two shaft seats 15 to rotate through two pull rods 21, so that the two mounting frames 16 twist the end parts of the connecting rod, and finally, when the rotation of the two shaft seats 15 is limited by a blocking block 18, the two shaft seats 15 drive two transverse sliding plates 13 to reciprocate rapidly along a sliding rail one 8 and a sliding rail three 12, so that the torsion and movement of the shaft seats 15 are realized, and the vibration testing can be carried out on the connecting rod.

The main functions realized by the utility model are as follows:

1. the connecting rod can be subjected to torsional vibration test, and the test result is more comprehensive;

2. the connecting rod can be subjected to a tensile test.

The installation mode, the connection mode or the setting mode of the tensile vibration testing device for the engine connecting rod are common mechanical modes, and can be implemented as long as the beneficial effects of the tensile vibration testing device can be achieved; the hydraulic cylinder 2, the tension sensor 3, the first slide rail 8, the second slide rail 9, the slide block 11, the third slide rail 12, the torsion spring 17, the second slide block 14, the slide groove 19 and the driving motor 22 of the tensile vibration testing device for the engine connecting rod are purchased in the market, and can be installed and operated by a person skilled in the art according to the attached using instruction without creative labor of the person skilled in the art.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (7)

1. The tensile vibration testing device for the engine connecting rod comprises a bottom plate (1), a hydraulic cylinder (2) and a tension sensor (3), wherein the hydraulic cylinder (2) is arranged on the bottom plate (1), and the tension sensor (3) is arranged on the moving end of the hydraulic cylinder (2); the automatic feeding device is characterized by further comprising a fixed sliding table (4), a movable sliding table (5), a driving mechanism (6) and two loading components, wherein the fixed sliding table (4) is arranged on the bottom plate (1), one loading component is arranged on the fixed sliding table (4), the loading components transversely move on the fixed sliding table (4), the movable sliding table (5) is longitudinally and slidably arranged on the bottom plate (1), the movable sliding table (5) is connected with the tension sensor (3), the other loading component is arranged on the movable sliding table (5), the other loading component transversely moves on the fixed sliding table (4), the two loading components are respectively connected with two ends of an engine connecting rod, the driving mechanism (6) is arranged on the bottom plate (1), the driving mechanism (6) is arranged between the fixed sliding table (4) and the movable sliding table (5), and the driving mechanism (6) drives the two loading components to transversely vibrate while twisting.

2. A tensile vibration testing apparatus for an engine connecting rod according to claim 1, wherein the stationary slide table (4) comprises a support table (7) and a first slide rail (8), the support table (7) is mounted on the base plate (1), the first slide rail (8) is transversely provided on the support table (7), and a loading assembly is slidably mounted on the first slide rail (8).

3. The tensile vibration testing device for an engine connecting rod according to claim 1, wherein the movable sliding table (5) comprises a second sliding rail (9), a sliding plate (10), a sliding block (11) and a third sliding rail (12), the second sliding rail (9) is longitudinally arranged on the base plate (1), the sliding plate (10) is slidably arranged on the second sliding rail (9) through the sliding block (11), the third sliding rail (12) is transversely arranged on the sliding plate (10), and the sliding plate (10) is connected with the movable sliding table (5).

4. A tensile vibration testing apparatus for an engine connecting rod as defined in claim 2 or 3, wherein the loading assembly comprises a cross slide plate (13), a second slider (14), a shaft seat (15) and a mounting frame (16), the cross slide plate (13) is slidably mounted on the first slider (8) or the third slider (12) through the second slider (14), the shaft seat (15) is rotatably mounted on the cross slide plate (13), the shaft seat (15) is in transmission connection with the driving mechanism (6), the driving mechanism (6) drives the shaft seat (15) to rotate, a limiting part of the shaft seat (15) is arranged on the cross slide plate (13), the limiting part limits the torsion angle of the shaft seat (15), the mounting frame (16) is arranged on the shaft seat (15), and the mounting frame (16) is used for connecting the end part of the connecting rod.

5. A tensile vibration testing apparatus for an engine connecting rod according to claim 4, further comprising two torsion springs (17), the two torsion springs (17) elastically connecting the two shaft seats (15) and the two traverse plates (13), respectively.

6. The tensile vibration testing device for an engine connecting rod according to claim 4, wherein the limiting component is two blocking blocks (18), the two blocking blocks (18) are arranged on the transverse sliding plate (13), the two blocking blocks (18) are symmetrically arranged on the outer side of the shaft seat (15), and the two blocking blocks (18) limit and block a swing arm connected with the driving mechanism (6) on the shaft seat (15).

7. The tensile vibration testing device for an engine connecting rod according to claim 5, wherein the loading assembly comprises a sliding groove (19), a sliding seat (20), two pull rods (21), a driving motor (22), a rocker arm (23) and a push rod (24), wherein the sliding groove (19) is transversely arranged in the middle of the fixed sliding table (4) and the movable sliding table (5), the sliding seat (20) is slidably arranged in the sliding groove (19), two ends of the sliding seat (20) are respectively and rotatably connected with inner ends of the two pull rods (21), outer ends of the two pull rods (21) are respectively and rotatably connected with swing arms of the two shaft seats (15), the driving motor (22) is arranged on the bottom plate (1), the rocker arm (23) is arranged on an output shaft of the driving motor (22), the rocker arm (23) is rotatably connected with one end of the push rod (24), and the other end of the push rod (24) is rotatably connected with the sliding seat (20).