Synchronous pulley shutter
A technology of synchronous belts and synchronous conveyor belts, which is applied in shutters, optics, cameras, etc., can solve problems such as the inability to use transmission belts effectively, affect the reliable operation of shutters, and occupy a large space, and achieve easy installation and disassembly, good rigidity, and structural forms simple effect
Inactive Publication Date: 2013-07-24
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology
The shutter of this patent, when opening and closing, only one side of the blade moves, its structure is cumbersome, takes up a lot of space, and cannot effectively use the transmission belt
In addition, when the detector rotates and the entire shutter rotates with it at a certain inclination to the horizontal plane, when the shutter is opened or closed, the blades will affect the speed consistency of opening or closing due to the effect of gravity, thus affecting the reliable operation of the shutter
Method used
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Embodiment Construction
[0015] The synchronous pulley shutter of the present invention will be further described below in conjunction with the accompanying drawings.
[0016] like figure 1 As shown, the base 1 is the base of the whole mechanism, 2 motor bases 2, 2 driven wheel seats 9, 4 tension wheel seats 4, 2 driving wheels 3, 2 driven wheels 8, 2 pairs of synchronous conveyor belts 7 Symmetrically installed on the front and rear sides of the base. The motor base 2 and the driven wheel base 9 are installed on the left and right sides of the base 1, the driving wheel 3 is fixed on the motor base 2, the driven wheel 8 is fixed on the driven wheel base 9, and the waist holes on the motor base 2 and the driven wheel base 9 are adjusted To ensure that the synchronous conveyor belt 7 is connected to the pulley, the upper part is horizontal and 3mm higher than the lower part. Here, in order to reduce the quality of the shutter, the driving wheel 3 and the driven wheel 8 are made of aluminum, and the mid...
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The invention provides a synchronous pulley shutter. The shutter specifically comprises a base and a blade driving mechanism installed at two sides of the base. A central hole, area of which is same as that of the exposure area of the shutter, is arranged on the base. The blade driving mechanism is composed of a driving wheel, a driven wheel and a synchronous transmission belt. The driving wheel is installed on a motor base fixed on the base. The synchronous transmission belt is installed on the driving wheel and the driven wheel. A tension wheel is fixedly installed on the base and at inner sides of the driving wheel and the driven wheel. The lower half part of the synchronous transmission belt is fixed on the position near the upper half part of the synchronous transmission belt. A clearance exists between the upper half part and the lower half part of the synchronous transmission belt and used for fixedly installing blades. Two ends of a left upper blade and a right lower blade arefixed on upper and lower parts of the synchronous transmission belt respectively through a left upper connecting piece and a right lower connecting piece. According to the synchronous pulley shutter disclosed by the invention, the clear aperture is up to psi 200 mm; and the exposure time can be set according to practical requirements.
Description
technical field [0001] The invention belongs to the field of optical detection instrument design, in particular to a large-diameter synchronous pulley shutter device. Background technique [0002] Traditional telescopes are limited by the aperture of the primary mirror and the size of the detector target surface, so there is not much demand for the aperture of the shutter. Generally, the demand can be met by purchasing foreign shutters with an aperture of less than φ100mm. With the increase of the aperture of the main mirror of the telescope and the target surface of the detector, the demand for the aperture of the shutter is further increased, and the shutter that meets the requirements of the aperture and size of the required aperture cannot be purchased through foreign purchases, prompting us to Invent a shutter that meets the requirements of use. [0003] Traditional shutter structures include leaf shutters and center shutters. The basic principle of the leaf shutter i...
Claims
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IPC IPC(8): G03B9/40
Inventor 胡家文马文礼黄金龙
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI