CN201444140U

CN201444140U - Schlieren apparatus light source system

Info

Publication number: CN201444140U
Application number: CN2009200146953U
Authority: CN
Inventors: 刘义; 李玉喜; 李今强; 马玉新; 赵亮; 王刚
Original assignee: JINZHOU HANGXING PHOTOELECTRIC EQUIPMENT CO Ltd
Current assignee: JINZHOU HANGXING PHOTOELECTRIC EQUIPMENT CO Ltd
Priority date: 2009-06-19
Filing date: 2009-06-19
Publication date: 2010-04-28
Anticipated expiration: 2019-06-19

Abstract

A schlieren apparatus light source system solves the problems that heat of a light housing is focalized and easily roasts the condenser because the position relationship between a bulb and a condenser in the existing schlieren apparatus light source system are not easily adjusted, filament image is not easily focalized, and the light source gives out plenty of heat in the using process, thus causing that the apparatus can not normally work. The schlieren apparatus light source system is characterized in that a light connecting holder is eccentrically provided with a ceramic holder for installing a halogen tungsten lamp; an axial flow fan is arranged on the top of a light box; a heat insulation glass is arranged between the condenser and the halogen tungsten lamp; the schlieren apparatus light source system has the beneficial effect that the schlieren apparatus light source system can forcibly cool the system, can guarantee the system to stably work for a long time, increases the service life of the light connecting holder and the wire of the light connecting holder and accuracy of schlieren tests; the position relationship and a focal plane between the bulb and the condenser can be adjusted at will by adjusting the light connecting holder; and the heat insulation glass guarantees the condenser not to be heated, effectively protects the condenser, and the system can work stably and reliably, is conveniently adjusted and has long service life.

Description

A kind of schlieren light-source system

Technical field

The utility model belongs to a kind of light-source system, particularly a kind of schlieren light-source system.

Background technology

Schlieren is a kind of instrument of doing the schlieren test, be mainly used in the instrument that observation transparent medium internal density changes, be used for studying the observation of stratified flow, multinomial stream, hypersonic flow, heat and mass transport, nature and the burning that forces, flame blast plasma and some chemical reaction, to find the crystals tissue defects.Light-source system is an important component part of schlieren, is high brightness, high homogeneity and suitable sources characteristic to the basic demand of light source.In the prior art, most of schlierens all are the 505-I type schlierens of introducing from USSR (Union of Soviet Socialist Republics) in 20th century, its structure is that the halogen tungsten lamp bulb is fixed in the housing, bulb is difficult for regulating, the filament picture is difficult for focusing on, because experimental period is longer, light source in use can send a large amount of heats, owing to only depend on natural cooling, the heat that is produced is difficult for leaving, and the time has been grown light-source system and will generate heat, thereby shortens lamp socket and connect electric wire life-span of lamp socket, cause loose contact, under the dither when wind-tunnel normally moves, light is often flickering, can not steady operation, influence the accuracy of schlieren test, also, cause the lamp housing heat accumulation, scald the people during experiment easily because a large amount of heat can not in time discharge, also easily condenser is baked and split, cause the instrument cisco unity malfunction.Unadjustable owing to the halogen tungsten lamp bulb is fixed in the housing, so the focal plane also is difficult for regulating.

Summary of the invention

Technical problem to be solved in the utility model is the above-mentioned weak point that overcomes schlieren light source in the prior art, a kind of refrigeration-type schlieren light-source system that forces that a kind of bulb adjustable positions is provided, can plays a protective role to condenser.

The technical solution adopted in the utility model is: it has one to include by shell, header board, back plate, the lamp box that base plate is formed, porcelain seat and the halogen tungsten lamp of on the porcelain seat, installing, it is characterized in that, it has a slide, the slide bottom is equipped with the locking handwheel, adjusting lever also is installed on slide, by set nut connecting plate is installed on the adjusting lever, described lamp box is installed on connecting plate, a fixed cover is installed on base plate, lock handwheel by the stock that has been threaded on the fixed cover, the lamp seated is installed in the middle of the fixed cover, off-centre is equipped with described porcelain seat on the lamp seated, have a through hole in cover top portion, axial flow blower is installed, on header board, be processed with a through hole that is used for installing the lamp microscope base corresponding to this through hole, the one group of condenser that separates with long spacer ring is installed in the lamp microscope base, a heat-protecting glass is arranged between condenser and halogen tungsten lamp, and heat-protecting glass compresses with trim ring, and short spacer ring is installed between condenser and heat-protecting glass.

Bolt hole eccentric throw on the described lamp connection seat is 7～14mm.

On two sides of described shell and back plate, all be processed with air vent, and be connected with spacer block, shadow shield is installed on spacer block by screw.

The beneficial effects of the utility model are, because system is equipped with axial flow blower, can force cooling to system, and the assurance system can be for a long time, steady operation, also improved the life-span of lamp seated and lamp seated electric wire and the accuracy that schlieren is tested; Install because halogen tungsten lamp is eccentric, by regulate the lamp seated can the regulated at will bulb and condenser between the position relation, so regulate the focal plane easily; Owing between condenser and halogen tungsten lamp, heat-protecting glass is installed, guarantee that condenser is not heated, effectively protected condenser, satisfied the requirement of schlieren, and working stability is reliable to light source, easy to adjust, long service life.

Description of drawings

Fig. 1 is a structural drawing of the present utility model;

Fig. 2 is that Figure 1A-A is to view.

Among the figure: 1. slide, 2. locking handwheel, 3. connecting plate, 4. adjusting lever, 5. set nut, 6. lamp seated, 7. fixed cover, 8. base plate, 9. lamp microscope base, 10. condenser, 11. trim rings, 12. long spacer rings, 13. header board, 14. shells, 15. shadow shields, 16. spacer blocks, 17. back plate, 18. stocks locking handwheel, 19. heat-protecting glasses, 20. porcelain seats, 21 halogen tungsten lamps, 22. axial flow blowers, 23. short spacer rings.

Embodiment

Provide embodiment of the present utility model below in conjunction with accompanying drawing.

The utility model has a slide 1, be equipped with in the middle of slide 1 bottom in use with schlieren on the locking handwheel 2 of slide plate locking, 3 adjusting levers 4 are installed on slide 1, by a pair of set nut 5 connecting plate 3 is installed on each adjusting lever 4, on connecting plate 3, install by shell 14, header board 13, back plate 17, the lamp box that base plate 8 is formed, on base plate 8, be processed with a through hole that allows the lamp seated pass through, below base plate 8, position that should through hole is connected with a fixed cover 7 by screw, fixed cover 7 is by the stock locking handwheel 18 that has been threaded, lamp seated 6 is installed in the middle of the fixed cover 7, and the relative position between lamp seated 6 and the fixed cover 7 is regulated by stock locking handwheel 18; The eccentric installation is used for the porcelain seat 20 of halogen tungsten lamp being installed and a halogen tungsten lamp 21 being installed therein on the lamp seated 6, and the bolt hole eccentric throw on the described lamp connection seat 6 is 7～14mm; Be milled with the through hole of a φ 75mm at the top of shell 14, corresponding to this through hole axial flow blower 22 is installed at shell 14 tops, on header board 13, be processed with a through hole that is used for installing lamp microscope base 9, said lamp microscope base 9 is connected with header board 13 by screw thread, the one group of condenser 10 that separates with long spacer ring 12 is installed in the lamp microscope base 9, a heat-protecting glass 19 is arranged between condenser 10 and halogen tungsten lamp 21, heat-protecting glass 19 usefulness trim rings 11 compress, and short spacer ring 23 is installed between condenser 10 and heat-protecting glass 19.

In order to help ventilating, on two sides of shell 14 and back plate 17, all be processed with φ 65 air vents, and be connected with spacer block 16 by screw, it is the shadow shield 15 of φ 90mm that diameter is installed on spacer block 16.

Claims

1. schlieren light-source system, include by shell [14], header board [13], back plate [17], the lamp box that base plate [8] is formed, porcelain seat [20] and the halogen tungsten lamp of upward installing at porcelain seat [20] [21], it is characterized in that, it has a slide [1], slide [1] bottom is equipped with locking handwheel [2], adjusting lever [4] also is installed on slide [1], adjusting lever [4] is gone up and by set nut [5] connecting plate [3] is installed, on connecting plate [3], described lamp box is installed, a fixed cover [7] is installed on base plate [8], fixed cover [7] is gone up by the stock locking handwheel [18] that has been threaded, lamp seated [6] is installed in the middle of the fixed cover [7], lamp seated [6] is gone up off-centre described porcelain seat [20] is installed, have a through hole at shell [14] top, corresponding to this through hole axial flow blower [22] is installed, on header board [13], be processed with a through hole that is used for installing lamp microscope base [9], the one group of condenser [10] that separates with long spacer ring [12] is installed in the lamp microscope base [9], between condenser [10] and halogen tungsten lamp [21], a heat-protecting glass [19] is arranged, heat-protecting glass compresses with trim ring [11], and short spacer ring [23] is installed between condenser [10] and heat-protecting glass.

2. schlieren light-source system according to claim 1 is characterized in that, the bolt hole eccentric throw on the described lamp seated [6] is 7～14mm.

3. schlieren light-source system according to claim 1 and 2 is characterized in that, all is processed with air vent on two sides of shell [14] and back plate [17], and is connected with spacer block [16] by screw, and shadow shield [15] is installed on spacer block [16].