CN219391330U - Drive assembly modal test frame device - Google Patents

Abstract

The utility model discloses a driving assembly modal test stand device which comprises a support frame, a support plate, a plurality of telescopic devices, a plurality of hooks, a spring bed and a bearing plate, wherein the support plate is connected to one end of the support frame along the transverse direction or the longitudinal direction of the support frame, the bearing plate is fixed to the other end of the support frame, the hooks are symmetrically fixed on the support frame, the spring bed is suspended in the support frame through the hooks, the device comprises a sleeve and a bolt, radial holes are formed in the circumferential surface of the sleeve, the radial holes of the bolt are in threaded fit with the radial holes of the bolt, the support frame comprises a first frame body and a second frame body, one end of the sleeve is connected with the first frame body, the other end of the sleeve is connected with the second frame body, and the sleeve is locked on the first frame body and the second frame body through the bolt. The utility model has the advantages of simple and compact structure, convenient use and improved modal test efficiency of the driving assembly.

Description

Drive assembly modal test frame device

Technical Field

The utility model relates to the technical field of drive assembly test devices, in particular to a drive assembly modal test stand device.

Background

The modal test is an effective means for identifying engineering dynamics characteristics by using a test method, and is an important means for solving the vibration problem of a complex structure and guiding vibration reduction and noise reduction design at present. Based on test data, a digital signal processing and parameter identification method is utilized to establish a mechanical model and model parameters of an actual measurement structure, so that a theoretical analysis method is avoided. In the development stage, designers should comprehensively analyze and evaluate each performance of the target prototype, and further study is performed on the basis of knowing the original characteristics of the target prototype, including: transfer functions between the excitation point and each response point, modal frequencies, modal masses, modal damping, modal shape and the like.

The driving assembly is used as an important component for new energy development, the development of the electric driving assembly needs frequent modal tests, an optimization basis is provided for theoretical design, the condition for modal making is limited at present, the driving assembly needs to be suspended by a rope when in each modal test, but the volume of each set of driving assembly is not the same, so that a proper suspension place needs to be found when in each modal test, and therefore, the electric driving assembly is very inconvenient. In order to facilitate the rapid and efficient modal test of research personnel, a simple and convenient modal test device is needed, and normal development is met.

Disclosure of Invention

The driving assembly modal test stand device provided by the utility model has the advantages of simple and compact structure, convenience in use and capability of improving the modal test efficiency of the driving assembly.

The technical scheme for solving the technical problems is as follows:

the utility model provides a drive assembly modal test frame device, includes support frame, backup pad, still includes a plurality of telescoping devices, a plurality of couple, spring bed, bearing plate, the backup pad is along the horizontal or longitudinal connection of support frame in the one end of support frame, the bearing plate is fixed at the other end of support frame, the couple is symmetrically fixed on the support frame, the spring bed hangs in the support frame through a plurality of couples, the device includes the sleeve, the bolt, be equipped with radial hole on telescopic global, the radial hole screw thread fit of bolt, the support frame includes first support body, the second support body, telescopic one end cooperates with first support body, telescopic other end cooperates with the second support body, and telescopic both ends pass through the bolt locking respectively on first support body, second support body.

Further, at least four telescopic bases are arranged on the bearing plate, and the telescopic bases are fixed on the bearing plate through bolts.

Further, a plurality of rollers are arranged on one side of the support frame, which is used for fixing the bearing plate.

According to the driving assembly modal test stand device, the assembly and parts are subjected to modal test by transversely hanging or vertically hanging the supporting plates, the angles are adjusted, and the telescopic devices are adjusted, so that the height and stability of the whole test stand can be adjusted, different objects, sizes and working conditions and working postures of research and development personnel can be met, the spring bed is hung in the supporting frames through the hooks, the operation is simple and convenient, the spring beds with different rigidities can be replaced according to different driving assembly bearing requirements, and different assembly modal requirements can be met.

Drawings

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

FIG. 2 is a schematic view of a first telescoping device mated with a support frame;

fig. 3 is a schematic view of the second telescopic device cooperating with the supporting frame.

The reference symbols in the drawings:

the support frame 1, first support body 1a, second support body 1b, backup pad 2, telescoping device 3, couple 4, spring bed 5, gyro wheel 6, bearing plate 7, flexible base 8, bolt 9, sleeve 10, radial hole 10a, cylinder D1, cylinder ejector pin D1a.

Detailed Description

The utility model is further described with reference to the drawings and detailed description.

Example 1:

as shown in fig. 1 to 2, a driving assembly modal test stand device comprises a support frame 1, a support plate 2, a plurality of telescopic devices 3, a plurality of hooks 4, a spring bed 5 and a bearing plate 7, wherein the support plate 2 is hung at one end of the support frame 1 along the transverse direction or the longitudinal direction of the support frame 1, the bearing plate 7 is fixed at the other end of the support frame 1, the hooks 4 are symmetrically fixed on the support frame 1, the spring bed 5 is hung in the support frame 1 through the plurality of hooks 4, the telescopic devices 3 comprise sleeves 10 and bolts 9, radial holes 10a are formed in the peripheral surface of the sleeves 10, the bolts 9 are in threaded fit with the radial holes 10a, the support frame 1 comprises a first stand body 1a and a second stand body 1b, one end of each sleeve 10 is matched with the first stand body 1a, the other end of each sleeve 10 is matched with the second stand body 1b, and two ends of each sleeve 10 are respectively locked on the first stand body 1a and the second stand body 1b through the bolts 9.

In this embodiment, when the test stand device is used, the whole test stand device is firstly pushed to a test site, then the support plate 2 is transversely or vertically hung on the top end of the support frame 1 according to the volume of the drive assembly to be subjected to the modal test, then a proper rope is selected according to the volume of the drive assembly to be subjected to the modal test, the drive assembly is bound on the rope, then the rope is connected with the support plate 2, at this time, the drive assembly is kept in a horizontal state, and finally the modal test is performed.

In the whole process, if the volume of the driving assembly is too large and the weight of the driving assembly cannot be borne, the driving assembly needs to be placed on the spring bed 5, and then a test is carried out, on the contrary, if the volume of the driving assembly is too small and the ropes and the supporting plate 2 can bear the weight of the driving assembly completely, the spring bed 5 needs to be taken out from the hanging hook 4, or the hanging of the spring bed 5 on the hanging hook 4 is easy to interfere with the driving assembly hung on the supporting plate 2.

In this embodiment, if the driving assembly suspended on the support plate 2 by the ropes still interferes with the bearing plate 7 after the spring bed 5 is removed, and the whole driving assembly cannot be suspended, then the length of the first frame body 1a and the second frame body 1b inserted into the sleeve 10 can be adjusted at this time, and then the bolts 9 are screwed, so that the first frame body 1a and the second frame body 1b are locked in the sleeve 10, and the distance from the support plate 2 to the bearing plate 7 is prolonged, so that the driving assembly is completely suspended on the support plate 2 by the ropes.

Preferably, at least four telescopic bases 8 are arranged on the bearing plate 7, and the telescopic bases 8 are fixed on the bearing plate 7 through bolts.

Preferably, a plurality of rollers 6 are provided on the side of the support frame 1 where the bearing plate 7 is fixed.

In this embodiment, the telescopic base 8 can be adjusted in height by screwing the bolt, when pushing the whole test frame device to the test site, the telescopic base 8 is shortened before pushing so as to avoid collision to the ground in the pushing process, when pushing the whole test frame device to the test site, the telescopic base is adjusted according to the ground flatness of the test environment, so that the test frame device is kept horizontal, the whole weight is borne by the telescopic base 8 completely because the weight of the driving assembly is heavier in the test process, the roller 6 only slightly contacts the ground, the roller 6 only plays a main role in the pushing process, and meanwhile, the roller 6 is arranged so as to increase the flexibility of the whole test frame and make more use of moving.

Example 2:

as shown in fig. 3, in this embodiment, the telescopic device 3 includes a cylinder disposed on the second frame 1b, one end of a piston rod D1a of the cylinder is connected with a cylinder body D1 of the cylinder, the other end of the piston rod D1a is connected with the first frame 1a, and the first frame 1a is adjusted to lift by controlling the piston rod D1a of the cylinder, so as to change the distance from the support plate 2 to the bearing plate 7, and finally, the modal test of the driving assembly with different volumes is satisfied.

Finally, it should be explained that: the above embodiments are merely illustrative of the preferred embodiments of the present utility model, and not limiting the scope of the present utility model; although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions.

Claims (3)

1. The driving assembly modal test stand device comprises a support frame (1) and a support plate (2), and is characterized in that; still include a plurality of telescoping device (3), a plurality of couple (4), spring bed (5), bearing plate (7), backup pad (2) are along the one end of horizontal or vertical connection at support frame (1) of support frame (1), the other end at support frame (1) is fixed to bearing plate (7), couple (4) are fixed on support frame (1) symmetrically, spring bed (5) hang in support frame (1) through a plurality of couple (4), telescoping device (3) device includes sleeve (10), bolt (9), be equipped with radial hole (10 a) on the global of sleeve (10), bolt (9) radial hole (10 a) screw-thread fit, support frame (1) include first support body (1 a), second support body (1 b), the one end and the first support body (1 a) cooperation of sleeve (10), the other end and the second support body (1 b) cooperation of sleeve (10), and the both ends of sleeve (10) are locked on first support body (1 a), second support body (1 b) through bolt (9) respectively.

2. A drive assembly modal test stand apparatus as set forth in claim 1 wherein; the bearing plate (7) is provided with at least four telescopic bases (8), and the telescopic bases (8) are fixed on the bearing plate (7) through bolts.

3. A drive assembly modal test stand device according to claim 1, characterized in that a plurality of rollers (6) are arranged on the side of the support frame (1) where the bearing plate (7) is fixed.