CN217483805U

CN217483805U - Vibration frock and vibration subassembly

Info

Publication number: CN217483805U
Application number: CN202221609646.6U
Authority: CN
Inventors: 罗智恒
Original assignee: Taicang Boze Drive System Co ltd
Current assignee: Taicang Boze Drive System Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-09-23
Anticipated expiration: 2032-06-24

Abstract

The utility model provides a vibration frock and vibration subassembly. The vibration tool comprises a peripheral frame and a containing cover, wherein the containing cover is surrounded by the peripheral frame and protrudes out of the peripheral frame, a mounting chamber is defined by the containing cover, the mounting chamber is used for mounting the vibration test component, and the vibration tool further comprises fixing holes which are distributed on the peripheral frame along the circumferential direction and are used for bolts to penetrate through, so that the vibration tool is fixed on the vibration table. The vibration assembly comprises the vibration tool, a vibration test part and a vibration table, wherein the vibration test part and the vibration table are installed in an accommodating cover of the vibration tool, bolts penetrate through fixing holes and are screwed into corresponding threaded holes in the vibration table, the vibration tool is fixed on the vibration table, and one or two of the fixing holes in each of the upper side and the lower side of the peripheral frame of the vibration tool do not penetrate through the bolts. The utility model discloses a vibration frock's first-order natural frequency is higher than 2000Hz, avoids taking place resonance in the vibration test process.

Description

Vibration frock and vibration subassembly

Technical Field

The utility model relates to a vibration frock reaches vibration subassembly including this vibration frock.

Background

In vehicles, particularly new energy vehicles, electric and electronic devices thereof are required to have a wide vibration frequency range. For example, according to ISO 16750-3 Standard environmental conditions and testing of Electrical and electronic devices for road vehicles, the frequency range is 0-2000 Hz.

In some low-power motor vibration life tests, vibration testing parts such as a motor and a gearbox need to be fixed on a vibration base platform by using a vibration tool. In order to avoid the vibration tool from generating resonance in the vibration test process to influence the test result, the first-order natural frequency of the vibration tool must be higher than 2000 Hz.

Disclosure of Invention

The utility model aims at providing a vibration frock that first-order natural frequency is higher than 2000Hz to avoid taking place resonance in the vibration test process.

According to a first aspect, the present invention provides a vibration tool comprising a peripheral frame and a containment hood surrounded by and protruding from the peripheral frame, thereby defining a mounting chamber for mounting a vibration test component such as a motor, gearbox 30, etc. The vibration tool further comprises fixing holes, the fixing holes are circumferentially distributed in the peripheral frame, preferably uniformly distributed, and bolts penetrate through the fixing holes, so that the vibration tool is fixed on the vibration table.

Preferably, the perimeter frame and the containment hood are integral. This facilitates manufacture. The material is aluminum alloy or a material with higher Young modulus.

According to the embodiment, 18 fixing holes are provided, 6 on each of the upper and lower sides and 3 on each of the left and right sides (not counting in the corners).

According to an embodiment, the vibration tool further comprises a mounting block mounted on an outer surface of the containment housing, e.g. located near the lower right corner. The motor and the like may be fixed to the mounting block through the receiving cover by fixing means such as screws, thereby being mounted in the receiving cover.

According to a second aspect, the utility model provides a vibration subassembly, including foretell vibration frock, install vibration test part and shaking table such as motor, gearbox in the cover that holds of vibration frock, the bolt passes the fixed orifices and revolves corresponding threaded hole on revolving to the shaking table, is fixed in on the shaking table from this with the vibration frock. According to an embodiment, one or both of the fixing holes on each of the upper and lower sides of the peripheral frame of the vibration tool has no bolt passed therethrough.

In the embodiment where 18 fixing holes are provided, there are 3 fixing holes through which no bolt passes: two fixing holes adjacent to the fixing holes of the left and right corners on the upper side of the peripheral frame; and a fixing hole in the left of the lower middle. The position of the fixing hole on the perimeter frame through which no bolt passes may vary depending on the circumstances.

According to an embodiment, the bolt is an M12 bolt. The fastening force applied by each bolt is 55000N or more. That is, the vibration tool is fixed to the vibration table to such a degree of fastening that a fastening force applied between the vibration tool and the vibration table through each bolt is 55000N or more.

The vibration frock according to the utility model discloses the embodiment has been tested. The result shows that the first-order natural frequency of the vibration tool is higher than 2000 Hz.

Drawings

The features and advantages of the present invention will be apparent from the following detailed description of embodiments thereof, which proceeds with reference to the accompanying drawings. In the drawings:

fig. 1 is a schematic front view of a vibration tool according to an embodiment of the present invention;

fig. 2 is a schematic bottom view of the vibration tool according to the embodiment of the present invention;

fig. 3 is a schematic rear view of the vibration tool according to an embodiment of the present invention;

FIG. 4 is a schematic rear view of the vibration tool mount motor of FIG. 3;

fig. 5 is a schematic front view of the vibration tool of the embodiment of the present invention fixed to the vibration table.

List of reference numerals

1 vibration assembly

10 vibration frock

11 peripheral frame 11

12 containment cover

13 fixed hole

14 mounting block

20 electric machine

30 speed changing box

40 vibration table

50 bolt

Detailed Description

For convenience of description, directional terminology will be used hereinafter with reference to the orientation of the figures. It will be appreciated that the orientation may be different in actual use.

Fig. 1 to 3 show a vibration tool 10 according to an embodiment of the present invention, in which the vibration tool 10 includes a peripheral frame 11 and a housing cover 12, the housing cover 12 is surrounded by the peripheral frame 11 and protrudes from the peripheral frame 11, thereby defining a mounting chamber (not shown) for mounting vibration test components (see fig. 4) such as a motor 20 and a transmission case 30 therein. In this example, the peripheral frame 11 has a rectangular configuration, and the housing cover 12 has a rectangular parallelepiped configuration (see fig. 2).

For ease of manufacture, the perimeter frame 11 and containment cover 12 are integral. The material is aluminum alloy.

Fig. 1 also shows that the vibration tool 10 includes fixing holes 13, and the fixing holes 13 are uniformly distributed in the peripheral frame 11 along the circumferential direction. The bolts 50 may be screwed to the vibration table 40 through the fixing holes 13 (see fig. 5), thereby fixing the vibration tool 10 to the vibration table 40. In this example, there are provided 18 fixing holes 13, 6 on each of the upper and lower sides and 3 on each of the left and right sides (not counting the corners). However, only 15 fixing holes 13 are penetrated by bolts 50 as described below with reference to fig. 5.

In addition, the vibration tool 10 further includes a mounting block 14 mounted on the outer surface of the housing cover 12 near the lower right corner. The motor and the like may be fixed to the mounting block 14 through the accommodation cover 12 by fixing means such as screws, thereby being mounted in the accommodation cover 12.

Fig. 5 shows the vibratory assembly 1, which demonstrates the arrangement of the vibratory tooling 10 secured to the vibratory table 40. The vibration assembly 1 comprises a vibration tool 10, a vibration test component such as a motor 20 and a gearbox 30 which are arranged in a containing cover 12 of the vibration tool 10, and a vibration table 40. The bolts 50 are screwed into the corresponding threaded holes of the vibration table 40 through the fixing holes 13, thereby fixing the vibration tool 10 to the vibration table 40. Thereafter, a vibration test may be performed.

As shown in fig. 5, only 15 bolts 50 (M12 bolts in this example) are used, and 3 fixing holes 13 have no bolts passing through: two fixing holes 13 of the fixing holes 13 adjacent to the left and right corners of the upper side of the peripheral frame 11; and a fixing hole 13 at the left of the lower center. In addition, each bolt 50 exerts a tightening force of 55000 newtons, i.e.: the vibration tool 10 is fixed to the vibration table 40 to such a fastening degree that the fastening force applied between the vibration tool 10 and the vibration table 40 through each bolt is 55000N.

Through tests, the first-order natural frequency of the vibration tool 10 is higher than 2000Hz, the frequency requirement of the vibration tool in random vibration is met, and resonance of the vibration tool in the vibration test process is avoided.

The embodiments described herein are merely illustrative. Moreover, features disclosed in the present disclosure may be used independently of, or in combination with, other features disclosed in the present disclosure, as desired. Accordingly, the present invention is not limited to the embodiments shown herein. Based on the embodiments of the present invention, those skilled in the art can obtain other embodiments without creative efforts, and these embodiments also belong to the protection scope of the present invention.

Claims

1. The vibration tool is characterized by comprising a peripheral frame and a containing cover, wherein the containing cover is surrounded by the peripheral frame and protrudes from the peripheral frame, a mounting chamber is defined by the containing cover for mounting a vibration test part, and fixing holes are formed in the peripheral frame in the circumferential direction and are used for bolts to penetrate through so as to fix the vibration tool on a vibration table.

2. The vibratory tooling of claim 1 wherein the perimeter frame and the containment case are integral.

3. The vibration tool according to claim 1, wherein the fixing holes are uniformly distributed.

4. The vibration tool according to any one of claims 1 to 3, wherein 18 fixing holes are provided, 6 on each of the upper side and the lower side; the left side and the right side are respectively provided with 3, and the corners are not counted in.

5. The vibration tool according to any one of claims 1 to 3, further comprising a mounting block mounted on an outer surface of the containment cover, positioned adjacent to a lower right corner, the vibration test component being capable of being secured to the mounting block by screws passing through the containment cover, thereby mounting it within the containment cover.

6. A vibration assembly comprising a vibration tool according to any one of claims 1 to 5, a vibration test part mounted in a housing cover of the vibration tool, and a vibration table, bolts being screwed through fixing holes into corresponding threaded holes in the vibration table, thereby fixing the vibration tool to the vibration table, characterized in that one or both of the fixing holes on each of the upper and lower sides of the peripheral frame of the vibration tool are free of bolts.

7. The vibratory assembly of claim 6 wherein there are 3 fixing holes without bolts passing through: two fixing holes adjacent to the fixing holes of the left and right corners on the upper side of the peripheral frame; and a fixing hole in the left of the lower middle.

8. The vibration assembly of claim 6 wherein the bolt is an M12 bolt.

9. Vibrating assembly according to any one of claims 6 to 8, wherein the vibrating tooling is fixed to the vibrating table to such a degree of fastening that the fastening force between the vibrating tooling and the vibrating table exerted by each bolt is 55000N or more.