CN118150096B - Vibration test device of frame - Google Patents
Vibration test device of frame Download PDFInfo
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- CN118150096B CN118150096B CN202410589107.8A CN202410589107A CN118150096B CN 118150096 B CN118150096 B CN 118150096B CN 202410589107 A CN202410589107 A CN 202410589107A CN 118150096 B CN118150096 B CN 118150096B
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 2
- 238000011056 performance test Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Classifications
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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
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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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
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
-
- 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
- G01M7/06—Multidirectional test stands
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a vibration test device of a vehicle frame, which belongs to the technical field of performance test equipment and comprises a base and at least three vibration components; the vibration assembly comprises a plane limiting mechanism, a movable column, an arc-shaped track and a vibration piece, wherein the plane limiting mechanism comprises a base surface; the movable column has the freedom degree of sliding on the base surface; the arc-shaped track is arranged on the movable column; the vibrating piece is arranged on the arc-shaped track in a sliding way, and is provided with a connecting component which is used for connecting the frame; when the vibrating piece slides on the arc-shaped track, the vibrating angle can be changed, and when the vibrating piece moves and rotates along with the movable column, the vibrating direction is enriched, and the jolt vibrating state of the frame in normal use can be simulated.
Description
Technical Field
The invention relates to the technical field of performance testing equipment, in particular to a vibration testing device of a vehicle frame.
Background
The frame is designed and manufactured in a vibration test to detect the performance of the frame. Existing vibration testing equipment typically has only one vibrating platform, which typically vibrates only up and down. There are also vibration test apparatuses that are equipped with two or three directions of vibration motors, which enable the vibration table to vibrate in other directions. However, the conventional vibration test equipment has a single vibration mode and a regular vibration direction, and cannot simulate the impact of a vehicle frame in various random directions when the vehicle runs on a bumpy road.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide the vibration test device for the vehicle frame, which can vibrate the vehicle frame at multiple positions, change the vibration direction of a vibration piece, enrich the vibration types and improve the vibration test effect.
In order to solve the technical problems, the invention adopts the following technical scheme.
The invention provides a vibration test device of a vehicle frame, which comprises a base and at least three vibration components; the vibration assembly includes: the device comprises a plane limiting mechanism, a movable column, an arc-shaped track and a vibrating piece, wherein the plane limiting mechanism is arranged on a base and comprises a base surface; the movable column has the freedom degree of sliding on the base surface, and the plane limiting mechanism can limit the sliding range of the movable column on the base surface; the arc-shaped track is arranged on the movable column, and the axial lead of the movable column is in the radial direction of the arc-shaped track; the vibrating piece is arranged on the arc-shaped track in a sliding way, and is provided with a connecting component which is used for connecting the frame; wherein, be provided with limit structure on the arc track, limit structure is used for restricting the sliding range of vibrating piece on the arc track, through limit structure and plane stop gear, can adjust the movable range of vibrating piece, and then change vibration effect.
Preferably, the plane limiting mechanism further comprises a tray body, an opening part and at least three limiting blocks, a cavity is formed in the tray body, and the base surface is the bottom surface of the cavity; the opening part is arranged at the center of the top of the tray body, the opening part is communicated with the cavity, the diameter of the opening part is smaller than that of the cavity, and the limiting block is arranged on the tray body and can move along the radial direction of the tray body; the three limiting blocks can move into the cavity to restrict the movement of the movable column in the cavity, and when the three limiting blocks prop against the end part of the movable column in the cavity, the movable column can be fixed in the cavity.
Preferably, a guide post is fixed on the base; a base is slidably arranged on the guide column, and the tray body is fixed on the base; the screw rod is rotatably arranged on the base, is parallel to the guide post and is in threaded fit with the base.
Preferably, a limiting disc is fixed at one end of the movable column positioned in the cavity; the diameter of the limiting disc is smaller than that of the cavity and larger than that of the opening part.
Preferably, the vibrating member includes a vibrating cylinder and a vibrating piston rod; one end of the vibration piston rod with the piston is installed in the vibration cylinder body in a sliding and sealing way.
Preferably, the vibration assembly further comprises a drive mechanism; the driving mechanism comprises a turntable, a sliding rod, a driving cylinder body and a driving piston rod, the turntable is rotatably arranged on the base, and a connecting rod is hinged at the eccentric position on the turntable; the slide bar is fixed on the base, a sliding sleeve is slidably arranged on the slide bar, and one end of the connecting rod, which is far away from the turntable, is hinged with the sliding sleeve; the driving cylinder body is fixed on the base and is parallel to the sliding rod; one end of the driving piston rod with the piston is slidably and hermetically arranged in the driving cylinder body, and the other end of the driving piston rod is fixedly connected with the sliding sleeve; the cavities in the driving cylinder body, which are positioned at the two sides of the piston, are respectively communicated with the cavities in the vibrating cylinder body, which are positioned at the two sides of the piston, through two connecting hoses.
Preferably, a motor is fixed on the base, and the motor drives all turntables to rotate simultaneously through a transmission mechanism.
Preferably, the connecting assembly comprises a universal joint and a connecting frame, and one end of the universal joint is connected with the vibrating piece; the connecting frame is connected with the other end of the universal joint, and the connecting frame is connected with the frame.
Preferably, the connecting frames are divided into two types, namely a first connecting frame and a second connecting frame; the first connecting frame is used for connecting a front fork cylinder of the frame; the second connecting frame is used for connecting a plate spring hinging seat of the frame.
Preferably, the limiting structure comprises a plurality of first positioning holes arranged on the arc-shaped track; an arc-shaped sliding block is fixed at one end of the vibrating piece, which is close to the arc-shaped track; and a positioning hole II matched with the positioning hole I is formed in the arc-shaped sliding block.
The invention has the beneficial effects that: the invention is provided with the base and at least three vibration components, can vibrate at least three positions of the frame, and is convenient for simulating the vibration state of the frame in normal use; through setting up vibrating piece and arc track, when vibrating piece slides on the arc track, can change the angle of vibration, the arc track is fixed on the movable column, and the movable column can slide and rotate on the base face, and then lets vibrating piece can vibrate and horizontal migration along with the movable column, and then richer the change of vibration direction and point position, irregular vibration that appears when can simulate the vehicle and travel on jolting road to let vibration test laminate true use scene more.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a vibration test apparatus for a vehicle frame according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the overall structure of a vibration test apparatus for a vehicle frame according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a vibration component of a vibration testing apparatus for a vehicle frame according to an embodiment of the present invention.
Fig. 4 is a transverse cross-sectional view of a plane limiting mechanism of a vibration test apparatus for a vehicle frame according to an embodiment of the present invention.
Fig. 5 is a longitudinal sectional view perspective view of a plane limiting mechanism of a vibration testing device of a vehicle frame according to an embodiment of the present invention.
Fig. 6 is a schematic diagram illustrating cooperation between an arc track and a vibrating member of a vibration testing apparatus for a vehicle frame according to an embodiment of the present invention.
Fig. 7 is a partial enlarged view at a in fig. 2.
Fig. 8 is a schematic structural diagram of a driving mechanism of a vibration testing apparatus for a vehicle frame according to an embodiment of the present invention.
Reference numerals illustrate:
1. The base, 2, the base surface, 3, the movable column, 4, the arc track, 5, the vibrating piece, 6, the disc body, 7, the opening, 8, the limiting block, 9, the guide column, 10, the base, 11, the screw rod, 12, the limiting disc, 13, the vibration cylinder body, 14, the vibration piston rod, 15, the turntable, 16, the slide rod, 17, the connecting rod, 18, the sliding sleeve, 19, the driving cylinder body, 20, the driving piston rod, 21, the motor, 22, the transmission shaft, 23, the bevel gear group, 24, the universal joint, 25, the first connecting frame, 26, the second connecting frame, 27, the first positioning hole, 28, the second positioning hole, 29, the arc sliding block, 30, the outer shell, 31, the frame, 32, the hinge seat, 33 and the front fork cylinder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
As shown in fig. 1 to 6, the present invention provides a vibration testing apparatus for a vehicle frame 31, which includes a base 1 and three vibration assemblies. The vibration assemblies are provided on the base 1, and the three vibration assemblies are capable of vibrating the frame 31 from three positions, respectively, to simulate vibration when the vehicle is traveling. The three vibration components correspond to the position of the front fork tube 33 of the frame 31 and the positions of the hinge seats 32 for mounting leaf springs on both sides of the bottom of the frame 31, respectively. These three are three support positions for the frame 31 in use of the vehicle. The three vibration assemblies can adjust the vibration angle and also can enable the vibration angle to randomly change within a certain range, so that the stress condition of the frame 31 is simulated when the vehicle runs on a bumpy road, and the vibration test data which accords with the actual situation can be obtained more conveniently.
Specifically, as shown in fig. 2, of the three vibration components, two correspond to the leaf spring hinge seat 32 of the frame 31 and one corresponds to the front fork 33 of the frame 31. Each vibration component comprises a plane limiting mechanism arranged on the base 1, a movable column 3 arranged on the plane limiting mechanism, an arc-shaped track 4 fixed at the top of the movable column 3 and a vibration piece 5 slidably arranged on the arc-shaped track 4.
In order to be able to control the direction of vibration, the present invention adopts a linear reciprocating vibration structure as the vibration member 5, and the vibration member 5 may be a pneumatic vibrator. Pneumatic vibrators are existing products. In order to make up for the defects in the prior art, the vibrating piece 5 provided by the invention can not only generate vibration in a single position and direction as in the prior art, but also adjust the angle and the position, so that the vibration is more real.
Specifically, in order to allow the angle and position of the vibrating member 5 to be varied within a certain range. As shown in fig. 6, the vibrating member 5 of the present invention can slide on the arc-shaped rail 4. A chute is formed in the arc-shaped track 4, an arc-shaped sliding block 29 is fixed at one end, close to the arc-shaped track 4, of the vibrating piece 5, the arc-shaped sliding block 29 is slidably mounted on the chute, and plugs are also arranged at two ends of the arc-shaped track 4. So that the arcuate slide 29 can only slide within the arcuate track 4. In order to conveniently limit the movable range of the vibrating piece 5 on the arc-shaped track 4, a limiting structure is arranged on the arc-shaped track 4. The limiting structure is six first positioning holes 27 formed in the side wall of the arc-shaped track 4, bolts can be screwed into any two first positioning holes 27, the bolts can be inserted into the sliding grooves to form a blocking for the arc-shaped sliding blocks 29, and then the arc-shaped sliding blocks 29 can only slide on the sliding grooves between the two bolts. When the position of the vibrating piece 5 on the arc-shaped track 4 is required to be fixed, a bolt can be inserted into the first positioning hole 27 and the second positioning hole 28 formed on the arc-shaped sliding block 29, and the position of the arc-shaped sliding block 29 on the arc-shaped track 4 is required to be fixed.
With the above arrangement, the inclination angle of the vibrating member 5 can be adjusted on the arc-shaped rail 4. Since the working ends of the vibrating members 5 are reciprocally moved, when the angle of the vibrating members 5 is changed, the relative distance between the working ends of the adjacent two vibrating members 5 is also changed slightly, and for this reason, it is necessary that the arc-shaped rail 4 be translatable within a certain range to accommodate such a change. The plane limiting mechanism provided by the invention is arranged on the base 1 and specifically comprises a tray body 6, an opening part 7 and at least three limiting blocks 8. As shown in fig. 3 to 5, a cavity is formed in the tray body 6, an opening 7 is formed in the top of the tray body 6, and the diameter of the opening 7 is smaller than that of the cavity. And a limiting disc 12 is fixed at one end of the movable column 3 far away from the arc-shaped track 4, and the limiting disc 12 is positioned in the cavity. While the diameter of the limiting disc 12 is smaller than the diameter of the cavity and larger than the diameter of the opening 7. The spacing disc 12 is thus able to move within the cavity.
As shown in fig. 5, the bottom surface of the cavity is referred to as a base surface 2, and the stopper plate 12 is restrained by the top and bottom surfaces of the cavity in the vertical direction so as not to move upward or downward, but to be movable on the base surface 2. Therefore, the free sliding of the movable column 3 on a plane can be realized within a certain movable range, and small changes of the relative distance between the working ends of the two vibrating pieces 5 are compensated.
The three limiting blocks 8 are movably inserted on the disc body 6, and the three limiting blocks 8 are evenly distributed on the radial direction of the disc body 6. One end of the three limiting blocks 8, which is close to the center of the tray body 6, can be inserted into the cavity, so that the three limiting blocks 8 can limit the movable range of the limiting tray 12 in the cavity by adjusting the positions of the three limiting blocks 8 in the radial direction of the tray body 6, the free movable range of the movable column 3 can be adjusted, and the position of the movable column 3 can be fixed. How to drive the three stoppers 8 to move on the disk 6 can be referred to as a three-jaw chuck in the prior art, and the moving implementation manner is not what is required to be protected by the present invention.
The axis of the movable column 3 is in the radial direction of the arc-shaped rail 4, so that when the movable column 3 rotates in the cavity, the arc-shaped rail 4 also rotates, which enables the oscillating piece 5 to be angularly adjusted in space, not just in a single plane.
As shown in fig. 1 and 2, in order to connect the working end of the vibrating member 5 with the frame 31, the present invention provides a connection assembly. The connection assembly includes a universal joint 24 and a connection frame, but the structure of the connection frame for connecting different parts is different. For the vibration assembly connected with the front fork cylinder 33 of the vehicle, the connecting frame is called a first connecting frame 25, one end of the first connecting frame 25 is connected with a universal joint 24, and the other end is fixedly connected with the front fork cylinder 33; the end of the universal joint 24 remote from the first coupling frame 25 is fixed to the working end of the vibrating member 5. For the vibration assembly connected with the plate spring hinging seat 32 of the vehicle, the connecting frame is called a second connecting frame 26, the second connecting frame 26 is provided with two pin shafts, and the two pin shafts are respectively inserted into the two plate spring hinging seats 32 of the vehicle frame 31; the second connecting frame 26 is connected to the working end of the vibrating member 5 through the universal joint 24.
Through the arrangement, when vibration testing is carried out, the corresponding parts of the first connecting frame 25 and the second connecting frame 26 and the frame 31 are fixed, then the position of the vibration piece 5 on the arc-shaped track 4 in the vibration assembly is adjusted according to the requirements, and meanwhile, the position of the limiting block 8 is adjusted, so that the adjustment of the vibration angles and the vibration positions of the multiple vibration pieces 5 can be realized, and the testing content of the vibration testing is enriched.
Embodiment two:
in order to be able to simulate a scene in which the vehicle is ascending, descending or traveling on a road with uneven inclination, the height of the vibration assembly provided by the invention can be adjusted. Specifically, a plurality of guide posts 9 are fixed to the base 1, and a base 10 is slidably mounted on the guide posts 9. Meanwhile, a screw rod 11 capable of rotating is mounted on the base 1, and the screw rod 11 is in threaded fit with the base 10. Since the screw 11 is parallel to the guide post 9, the base 10 can be driven to move along the guide post 9 when the screw 11 is rotated. The tray bodies 6 are fixed to the base 10 so that the height of each tray body 6 can be adjusted by rotating the corresponding screw rod 11, thereby adjusting the height of the vibrating member 5.
When the heights of the three vibration members 5 are different, the state of the frame 31 when the road has a gradient can be simulated, and the performance of the frame 31 in the state can be tested.
Embodiment III:
The vibrating member 5 of the present invention may also have the following structure. As shown in fig. 2, 3,7 and 8, each vibrating piece 5 includes a vibrating cylinder 13 and a vibrating piston rod 14. The vibration cylinder 13 is fixed on the corresponding arc-shaped track 4, one end of the vibration piston rod 14 with a piston is slidably and hermetically arranged in the vibration cylinder 13, the piston divides the inner cavity of the vibration cylinder 13 into two parts, the two parts are respectively communicated with the connecting hoses, hydraulic oil is injected into the inner cavities of the two parts and the connecting hoses, and the connecting hoses are used for alternately injecting the oil into the inner cavities of the two parts, so that the vibration piston rod 14 can be driven to reciprocate on the vibration cylinder 13.
In order to achieve the above function, the present invention provides a driving mechanism on the base 1 for driving the vibration piston rod 14 to reciprocate on the vibration cylinder 13. Specifically, the drive mechanism includes a drive cylinder 19 fixed to the base 1, and similarly to the vibration cylinder 13, a drive piston rod 20 is also slidably mounted on the drive cylinder 19, and one end of the drive piston rod 20 with a piston is slidably and sealingly mounted in the drive cylinder 19. The piston in the drive cylinder 19 also divides the interior cavity of the drive cylinder 19 into two parts. The two ends of the connecting hose are respectively connected with the inner cavity of one end of the driving cylinder body 19 and the corresponding inner cavity in the vibrating cylinder body 13. In this way, when the driving piston rod 20 reciprocates on the driving cylinder 19, the vibration piston rod 14 can be driven to reciprocate on the vibration cylinder 13 by hydraulic transmission.
Since only the driving piston rod 20 and the vibrating piston rod 14 are required to be able to be interlocked in the present invention, the larger the diameter of the connection hose, the smaller the resistance of the hydraulic transmission in the present invention, unlike the conventional hydraulic system. The connecting hose not only takes on the function of transporting hydraulic oil, but also can reduce the influence on the sliding of the vibrating element 5 on the arc-shaped track 4 and the movement of the limiting disc 12 on the base surface 2 because of the bending property.
But in order to allow the drive piston rod 20 to reciprocate relative to the drive cylinder 19. The driving mechanism also comprises a slide bar 16 fixed on the base 1, a sliding sleeve 18 slidably arranged on the slide bar 16 and a rotary table 15 rotatably arranged on a bearing seat on the base 1, wherein a connecting rod 17 is hinged on a non-center part of the rotary table 15, and the other end of the connecting rod 17 is hinged with the sliding sleeve 18. Thus, when the turntable 15 rotates, the driving sliding sleeve 18 reciprocates on the sliding rod 16, the sliding rod 16 is parallel to the driving cylinder 19, and the sliding sleeve 18 is fixedly connected with the driving piston rod 20. Therefore, when the turntable 15 rotates, the driving piston rod 20 can reciprocate in the driving cylinder 19, and then drives the corresponding vibrating piece 5 to reciprocate to vibrate the frame 31 through the connecting hose.
Because the embodiment of the invention is provided with three vibration components, three driving mechanisms are correspondingly arranged, meanwhile, the base 1 is provided with a motor 21, the base 1 is rotatably provided with two transmission shafts 22, the transmission shafts 22 and the motor 21 are driven by a bevel gear set 23, and the transmission shafts 22 and the rotating shafts of the turntables 15 are also driven by the bevel gear set 23, so that one motor 21 simultaneously drives three vibration pieces 5 to synchronously vibrate.
In order to protect the drive mechanism, a housing 30 is provided on the base 1, and the housing 30 may cover the motor 21, the transmission shaft 22, the drive mechanism, and the like.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. A vibration test device of a vehicle frame, which is characterized by comprising a base (1) and at least three vibration components;
The vibration assembly includes:
the plane limiting mechanism is arranged on the base (1) and comprises a base surface (2);
A movable column (3), wherein the movable column (3) has a degree of freedom of sliding on the base surface (2), and the plane limiting mechanism can limit the sliding range of the movable column (3) on the base surface (2);
the arc-shaped track (4) is arranged on the movable column (3), and the axial lead of the movable column (3) is in the radial direction of the arc-shaped track (4);
The vibrating piece (5), the vibrating piece (5) is slidably arranged on the arc-shaped track (4), a connecting component is arranged on the vibrating piece (5), and the connecting component is used for connecting the frame (31);
The limiting structure is arranged on the arc-shaped track (4) and used for limiting the sliding range of the vibrating piece (5) on the arc-shaped track (4);
The plane limiting mechanism further comprises:
the novel multifunctional energy-saving tray comprises a tray body (6), wherein a cavity is formed in the tray body (6), and the base surface (2) is the bottom surface of the cavity;
An opening (7), wherein the opening (7) is arranged at the center of the top of the tray body (6), the opening (7) is communicated with the cavity, and the diameter of the opening (7) is smaller than that of the cavity;
the limiting blocks (8) are arranged on the disc body (6) and can move along the radial direction of the disc body (6);
the three limiting blocks (8) can move into the cavity to restrict the movement of the movable column (3) in the cavity;
The connection assembly includes:
A universal joint (24), wherein one end of the universal joint (24) is connected with the vibrating piece (5);
the connecting frame is connected with the other end of the universal joint (24), and is connected with the frame (31);
the limiting structure comprises a plurality of first positioning holes (27) which are formed in the arc-shaped track (4);
an arc-shaped sliding block (29) is fixed at one end of the vibrating piece (5) close to the arc-shaped track (4);
And a second positioning hole (28) matched with the first positioning hole (27) is formed in the arc-shaped sliding block (29).
2. A vibration testing apparatus of a vehicle frame according to claim 1, wherein a guide post (9) is fixed to the base (1);
A base (10) is slidably arranged on the guide column (9), and the tray body (6) is fixed on the base (10);
the base (1) is rotatably provided with a screw rod (11), and the screw rod (11) is parallel to the guide column (9) and is in threaded fit with the base (10).
3. A vibration testing apparatus of a vehicle frame according to claim 1, wherein a limiting plate (12) is fixed at one end of the movable column (3) located in the cavity;
the diameter of the limiting disc (12) is smaller than that of the cavity and larger than that of the opening (7).
4. A vibration testing apparatus of a vehicle frame according to claim 1, characterized in that the vibrating member (5) comprises a vibrating cylinder (13) and a vibrating piston rod (14);
One end of the vibration piston rod (14) with the piston is installed in the vibration cylinder body (13) in a sliding and sealing mode.
5. The vibration testing apparatus of a vehicle frame of claim 4, wherein said vibration assembly further comprises a drive mechanism;
the driving mechanism includes:
the rotary table (15) is rotatably arranged on the base (1), and a connecting rod (17) is hinged at the eccentric position of the rotary table (15);
The sliding rod (16) is fixed on the base (1), a sliding sleeve (18) is slidably arranged on the sliding rod (16), and one end of the connecting rod (17) far away from the turntable (15) is hinged with the sliding sleeve (18);
the driving cylinder body (19), the driving cylinder body (19) is fixed on the base (1) and is parallel to the sliding rod (16);
The driving piston rod (20), one end of the driving piston rod (20) with a piston is slidably and hermetically arranged in the driving cylinder body (19), and the other end of the driving piston rod is fixedly connected with the sliding sleeve (18);
The cavities in the driving cylinder body (19) positioned at two sides of the piston are respectively communicated with the cavities in the vibrating cylinder body (13) positioned at two sides of the piston through two connecting hoses.
6. A vibration testing apparatus of a vehicle frame according to claim 5, wherein a motor (21) is fixed to the base (1), and the motor (21) drives all the turntables (15) to rotate simultaneously through a transmission mechanism.
7. A vibration testing apparatus for a vehicle frame according to claim 1, wherein said connecting frames are of two types, a first connecting frame (25) and a second connecting frame (26), respectively;
the first connecting frame (25) is used for connecting a front fork cylinder (33) of the frame (31);
The second connecting frame (26) is used for connecting a plate spring hinging seat (32) of the frame (31).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410589107.8A CN118150096B (en) | 2024-05-13 | 2024-05-13 | Vibration test device of frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410589107.8A CN118150096B (en) | 2024-05-13 | 2024-05-13 | Vibration test device of frame |
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| CN118150096A CN118150096A (en) | 2024-06-07 |
| CN118150096B true CN118150096B (en) | 2024-07-26 |
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| CN202410589107.8A Active CN118150096B (en) | 2024-05-13 | 2024-05-13 | Vibration test device of frame |
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| CN114046949A (en) * | 2022-01-12 | 2022-02-15 | 沙洲职业工学院 | Robot vibration test bench |
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| CN219284622U (en) * | 2023-04-14 | 2023-06-30 | 天津市聚鹏自行车配件有限公司 | Electric bicycle frame vibration testing device |
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|---|---|---|---|---|
| CN202221366U (en) * | 2011-06-23 | 2012-05-16 | 浙江豪情汽车制造有限公司 | Steering wheel vibration test bed |
| CN114046949A (en) * | 2022-01-12 | 2022-02-15 | 沙洲职业工学院 | Robot vibration test bench |
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| CN118150096A (en) | 2024-06-07 |
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