CN203465070U

CN203465070U - Horizontal vibration testing clamp with extensible table board

Info

Publication number: CN203465070U
Application number: CN201320582800.XU
Authority: CN
Inventors: 颜东升; 朱宜生; 陈中青; 王一飞; 徐宗航; 周捷; 宋凯平; 华明海; 王元帅; 陈凤清; 潘光仙
Original assignee: NO 723 RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp
Current assignee: NO 723 RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp
Priority date: 2013-09-22
Filing date: 2013-09-22
Publication date: 2014-03-05
Anticipated expiration: 2023-09-22

Abstract

The utility model relates to a horizontal vibration testing clamp with an extensible table board. The horizontal vibration testing clamp comprises an extensible table board and a back rack perpendicular to the extensible table board. The lower edge of the back rack is fixedly connected with the upper surface of the extensible table board; and the lower surface of the extensible table board is connected with a vibration table. The back rack is arranged in the middle of the extensible table board; and the upper surface of the extensible table board is divided into two cabinet bottom installation planes with the approximately equal sizes along the length direction. The upper edge of the back rack is connected with two flat pressing blocks at an adjustable distance, wherein the two flat pressing blocks are in parallel to the upper surface of the extensible table board; and extending rods are fixedly connected with all the flat pressing blocks, wherein the axial directions of the extending rods are perpendicular to the planes of the flat pressing blocks. Two channel irons are clamped at the outer sides of the two extending rods by a way being perpendicular to the axises of the extending rods and can move up and down along the two extending rods. With the horizontal vibration testing clamp, vibration testing can be carried out on two cabinets simultaneously, thereby substantially improving the testing efficiency, shortening the development period, and saving the development cost; and the clamp can be applied to cabinets with different boundary dimensions.

Description

Horizontal vibration test fixture that can expanding table top

Technical field

The utility model belongs to vibration test technology field, particularly a kind of can to two standard cabinets, test simultaneously can expanding table top horizontal vibration test fixture.

Background technology

The vibration test initial stage is applied to aerospace field, has been widely used in now the fields such as railway, communications and transportation, building, earthquake simulation, power machine, boats and ships.Along with the requirement to product reliability is more and more higher, especially Aero-Space and ship domain, seem particularly important as the vibration experiment development of fail-test key equipment.Vibration test fixture is for product is fixed on vibration table surface, and the vibrational energy of shaking table is passed to the device of test products, and the fine or not direct relation of fixture performance the quality of vibration test quality.

The fixture of existing standard rack vibration test is for single cabinet design, as article " dynamic structure design of electronics rack vibration test fixture " (Zhang Jingfeng [J] electric mechanical engineering 2005,21 (2): 29-31) and " Vibration Test Fixture Design for Vehicle-borne Electronics Cabinet " (look into build new, Liu Jicheng [J] modern radar 2007,29 (8): 35-36); Due to the limitation of vibration table, a horizontal vibration platform can only be installed a standard cabinet and carry out vibration test simultaneously.

Therefore, the problem that prior art exists is: a horizontal vibration platform can only be installed a standard cabinet and carry out vibration test, and test efficiency is low, thereby causes rack to be tested to overstock in a large number, has extended the lead time of rack, has increased development cost.

Summary of the invention

The purpose of this utility model is to provide a kind of horizontal vibration test fixture that can expanding table top, can make shaking table that two standard cabinets are installed simultaneously, significantly improves the efficiency of standard cabinet vibration test, shortens the lead time, saves development cost.

The technical solution that realizes the utility model object is: a kind of horizontal vibration test fixture that can expanding table top, comprise expanding table top and the backrest vertical with expanding table top, the lower edge of backrest is fixedly connected with expanding table top upper surface, expanding table top lower surface connects shaking table, it is characterized in that: described backrest is positioned at the middle part of described expanding table top, expanding table top upper surface is divided into two rack bottom installed surfaces about equally along its length, in described backrest, edge connects the distance adjustable two dull and stereotyped briquettings parallel with expanding table top upper surface, each dull and stereotyped briquetting is fixedly connected with an extension rod, extension rod is axially vertical with dull and stereotyped briquetting plane, two channel-section steels and extension rod axis are vertically clamped in two extension rod outsides, can move up and down along two extension rods.

The utility model compared with prior art, its remarkable advantage:

1, improve vibration test efficiency: when many racks wait while carrying out vibration test, can by two racks simultaneously clampings on shaking table, test, improve test efficiency, shorten the rack lead time;

2, save rack development cost: the shortening lead time itself just means saving development cost, simultaneously owing to can reducing the working time of shaking table, save energy consumption;

3, adaptability is good: can test the rack of different in width and height, greatly strengthen the adaptive faculty of testing equipment;

4, safer: because test efficiency improves, thus the potential safety hazard of avoiding the long-time non-stop run of shaking table to bring.

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Accompanying drawing explanation

Fig. 1 is the structural representation of the horizontal vibration test fixture that the utility model can expanding table top.

Fig. 2 is the outside drawing of the utility model after can the horizontal vibration test fixture installation code rack of expanding table top.

Fig. 3 a is the vertical view of base in Fig. 1.

Fig. 3 b is the left view of base in Fig. 1.

Fig. 4 a is the front view of backrest in Fig. 1.

Fig. 4 b is the left view of backrest in Fig. 1.

Fig. 5 a is the vertical view of Fig. 1 middle plateform briquetting.

Fig. 5 b is the left view of Fig. 1 middle plateform briquetting.

Fig. 6 a is the vertical view of extension rod in Fig. 1.

Fig. 6 b is the left view of extension rod in Fig. 1.

Fig. 7 a is the vertical view of channel-section steel.

Fig. 7 b is the left view of channel-section steel.

In figure: 1 expanding table top, 11 expanding table top upper surfaces, 11,112 rack bottom installed surfaces, 12 expanding table top lower surfaces, 2 backrests, 31,32 dull and stereotyped briquettings, 41,42 extension rods, 51,52 channel-section steels, 61,62 racks.

Embodiment

As shown in Figure 1, the utility model can expanding table top horizontal vibration test fixture, comprise expanding table top 1 and the backrest 2 vertical with expanding table top, the lower edge of backrest 2 is fixedly connected with expanding table top upper surface 11, expanding table top lower surface 12 connects shaking table, backrest 2 is positioned at the middle part of described expanding table top 1, and expanding table top upper surface 12 is divided into two rack bottom installed surfaces 111,112 about equally along its length.Orientation as shown in FIG., one is assumed to left installed surface 111, and another can be assumed to right installed surface 112.

In backrest 2, edge connects the distance adjustable two dull and stereotyped briquettings parallel with expanding table top upper surface 11, i.e. the first dull and stereotyped briquetting 31 and the second dull and stereotyped briquetting 32, the first dull and stereotyped briquetting 31 and the second dull and stereotyped briquetting 32 can independently move forward and backward along edge in backrest 2, to change the distance between two dull and stereotyped briquettings.

On each dull and stereotyped briquetting, be fixedly connected with an extension rod, on the first dull and stereotyped briquetting 31, be fixedly connected with the first extension rod 41, on the second dull and stereotyped briquetting 32, be fixedly connected with the second extension rod 42,

extension rod

41,42 is axially vertical with dull and

stereotyped briquetting

31,32 planes, also vertical with expanding table top upper surface 11.Distance between two

extension rods

41,42 regulates by two dull and stereotyped briquettings 31,32.Two channel-section steels 52,53 and extension rod axis are vertically clamped in two

extension rod

41,42 outsides, can move up and down along two

extension rods

41,42.

Left rack bottom installed surface 111 and left channel-section steel 51 are for a standard cabinet 61 is installed, and right rack bottom installed surface and right channel-section steel 52 are for installing another standard cabinet 62.Standard cabinet bottom is connected with the rack bottom installed surface of this fixture by bolt, and standard cabinet back is connected with bolt with the channel-section steel of this fixture by back vibroshock.

Expanding table top lower surface 12 use bolts are connected with vibration table surface.

Because left channel-section steel 51, right channel-section steel 52 can move up and down by two

extension rods

41,42, so its height can be according to the height free adjustment of standard cabinet back vibroshock, thereby makes this fixture can adapt to the rack of differing heights, has strengthened adaptability.

By moving forward and backward dull and stereotyped briquetting, can regulate the distance between

extension rod

41,42 along fore-and-aft direction, to guarantee that the rack of different in width all can stably be arranged in backrest 2, thereby make this fixture can adapt to the rack of different in width, strengthened adaptability.

Like this, the connection of horizontal vibration test fixture that can expanding table top by the utility model, just two standard cabinets can be installed on a shaking table, two standard cabinets are carried out to vibration test simultaneously, thereby test efficiency can be risen to twice, to shorten the rack lead time, save development cost, extend the serviceable life of shaking table, reduce the potential safety hazard that shaking table long time continuous working brings.In addition, due to the particular design of backrest, this test fixture, also applicable to the rack of different in width and height, has strengthened the adaptive faculty of testing table.

Certainly, this fixture with a standard cabinet can be only installed test.

In backrest 2 along can realize like this with two being connected of dull and stereotyped briquetting 31,32: in backrest 2 along being provided with fin, dull and

stereotyped briquetting

31,32 bottoms be provided with in backrest 2 along groove corresponding to fin, make dull and

stereotyped briquetting

31,32 can along in backrest 2 along moving forward and backward.So both flexible adjustment, reliable and stable again.

The lower edge of backrest 2 is bolted with expanding table top upper surface 11.Like this backrest of differing heights, more exaptation can be installed.Certainly, if highly do not regulate diversity requirement, also available welding etc. is fixedly connected with mode and realizes.

For guaranteeing good connectivity robustness, improve test effect, the flatness of expanding table top upper surface 11 is not more than 1mm.

For guaranteeing good connectivity robustness, improve test effect, the flatness of expanding table top lower surface (12) is not more than 0.5mm.

Claims

One kind can expanding table top horizontal vibration test fixture, comprise expanding table top (1) and the backrest (2) vertical with expanding table top, the lower edge of backrest (2) is fixedly connected with expanding table top upper surface (11), expanding table top lower surface (12) connects shaking table, it is characterized in that: described backrest (2) is positioned at the middle part of described expanding table top (1), expanding table top upper surface (11) is divided into two rack bottom installed surfaces (111 about equally along its length, 112), described backrest (2) is upper along connecting the distance adjustable two dull and stereotyped briquettings (31 parallel with expanding table top upper surface (11), 32), each dull and stereotyped briquetting (31, 32) be fixedly connected with an extension rod (41, 42), extension rod (41, 42) axial and dull and stereotyped briquetting (31, 32) plane is vertical, two channel-section steels (52, 53) be vertically clamped in two extension rods (41 with extension rod axis, 42) outside, can be along two extension rods (41, 42) move up and down.
2. horizontal vibration test fixture according to claim 1, it is characterized in that: described backrest (2) is upper along being provided with fin, described dull and stereotyped briquetting (31,32) bottom is provided with upper along groove corresponding to fin with backrest (2), and dull and stereotyped briquetting (31,32) can be moved forward and backward along the upper edge of backrest (2).
3. horizontal vibration test fixture according to claim 1, is characterized in that: the lower edge of described backrest (2) is bolted with expanding table top upper surface (11).
4. horizontal vibration test fixture according to claim 1, is characterized in that: the flatness of described expanding table top upper surface (11) is not more than 1mm.
5. horizontal vibration test fixture according to claim 1, is characterized in that: the flatness of described expanding table top lower surface (12) is not more than 0.5mm.