Troubleshooting in microscope mechanics
1, microscope fine-tuning part of the troubleshooting
Microscope fine-tuning part of the * common failure is stuck and failure. Fine-tuning part is installed in the internal instrument, its mechanical parts are small, compact, is the most delicate and complex part of the microscope. Failure of the fine adjustment part of the microscope should be repaired by professional technicians. Do not dismantle it without sufficient certainty.
2, the objective lens converter troubleshooting
Microscope objective lens converter is the main failure of the positioning device failure. Generally positioning bullet damage (deformation, fracture, loss of elasticity, bullet set screws loose, etc.) caused by the replacement of the new bullet **, do not tighten the set screws, should be in accordance with this section, 'three (two) 2' first for optical axis correction. And so on after the axis, and then tighten the screws. If the internal positioning converter, you should screw down the big head screw in the centre of the rotating disc, remove the rotating disc, in order to replace the positioning bullet **, the optical axis correction method is the same as the previous.
3, microscope spotter lifting mechanism troubleshooting (this part of the main fault is also automatic slide)
Elimination methods are as follows:
(1) straight microscope spotter lifting mechanism: 1. 5 celluloid washer 2 big head screw 3 eccentric tooth rod set 4 tooth rod 6 lifting handwheel 7 double-eye nut adjustment, one hand with a double-eye nut wrench inserted into the handwheel end face of the double-eye nut, the other hand with a screwdriver inserted into the other end of the big head screw slot, and tighten the screw can be stopped from slipping.
(2) The lifting mechanism of the oblique cylinder microscope concentrator
When adjusting, first use a screwdriver to withdraw the stationary screw 2 in the middle of the double-eye nut for 1 to 2 turns; the bearing washer 3 is a press fit with the stationary screw 2, and will therefore follow it and withdraw from the end face of the toothed rod 10. Then, using a double-eye nut spanner, turn the double-eye nut 1 in towards the adjustment seat 5. At the same time, turn the handwheel with the other hand and test it until the lifting mechanism is properly loosened and tightened, and then stops the screwing in of the double-eye nut when it stays in any position. Finally, and then the stationary screw in, so that the bearing washer contact tooth rod 10 on the line.
The reason why this adjustment can eliminate the problem is because the inner hole of the adjustment seat 5 is tapered. The tapered bushing 4 is slotted in the axial direction. When the double-eye nut 1 is screwed inward, the conical sleeve is pushed inward, so that when the conical sleeve advances, the groove becomes smaller and the bore shrinks, clamping the toothed rod 10 more tightly and increasing the frictional resistance of the gear to rotate, thus stopping the automatic descent.
