. Due to the straightness of the rail, the difference in height, the running resistance of the two legs, the wheel slip, the difference in wheel diameter, etc., it may cause the two legs of the reclaimer to be out of sync, and one leg often leads the other. One leg out phenomenon. The fixed beam and the flexible legs are connected by a ball hinge. Its function is to allow the gantry reclaimer cart to move within a certain range. However, the gantry reclaimer walks a long distance on the yard. If it is out of synchronization, it should be adjusted in time to avoid the serious deflection of the cart and the damage to the steel structure of the reclaimer.
How to synchronize the walking of the reclaimer cart with a span of up to meters is a technical problem. Our gantry reclaimer uses an automatic control frequency conversion speed control system. After closed-loop control, it automatically adjusts the speed of the two-legged walking motor To keep the carts in sync. The portal reclaimer is equipped with a large vehicle walking protection device at the joint of the fixed beam and the flexible leg ball hinge. We installed an encoder on the cam of the walking protection device of the cart as shown in the figure to record the deflection of the two legs of the door reclaimer cart. Because we need to have such a point, it can reflect the amount of deflection when the cart is walking, but the action of this point itself is not large. In this way, we can use an encoder to record the deflection of the two legs of the portal reclaimer cart, because the small distance of this point will not cause the counting pulse error caused by the long distance counting. The steel legs of the reclaimer are welded together with the fixed beam, and are connected to the flexible legs through a ball hinge.
The point of the ball hinge is the point we are looking for. Because the ball joint itself is designed to allow the cart to deflect in a small range. We install an encoder at the cam of the travel protection device of the ball hinged cart. When the two legs of the cart are synchronized, the encoder value of Tianjin Smit Precision Instrument Co., Ltd. is zero. Once the deflection cam rotates in the cart, the encoder performs relative operation and starts counting. We can reflect the rotation change at the cam recorded by the encoder, and send the value recorded by the encoder to the high number counting module as the deflection amount. After the reduction, the value recorded by the encoder also decreases, and the "deflection amount" added to the flexible leg-side inverter also decreases accordingly, so that the frequency conversion speed of the two legs tends to be consistent, and the two legs are synchronized. A structural system that automatically controls the frequency conversion speed regulation system and solves the problem of the synchronization of the large-span portal reclaimer cart.
Watch machine clutch plate replacement frequency reduction gearbox repair times repair time during repair work average number of clutch stop slewing travel luffing slewing travel luffing plate damage repair mechanism mechanism mechanism mechanism mechanism mechanism is the same as the original tire crane, almost the same The statistical data has changed a lot during the statistical interval. Its effect is mainly reflected in the following aspects to reduce hidden safety hazards in repair.
After the technical transformation, whether it is the replacement of the clutch plate, or the maintenance of the clutch or the reduction gearbox can be carried out directly in the crane shed, eliminating the link of lifting on the roof of the cutting machine shed and in the narrow shed, And greatly reduce the unsafe hidden trouble in the repair work and reduce the workload of repair work.
Yuhai Company develop and produce of various hemisphere, electrode and metallisation configurations. This range is fabricated from various piezoelectric material formulations for applications such as high power, sensitivity, stability needs.
Features
- Choice of metallisation (Silver, Nickel, Gold and others on request)
- Thickness frequency tuning available on request
- Wide choice of PZT formulations
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Applications include
- Sonar transducers
- Hydrophones
- HIFU medical and industrial
- Underwater communications
Dimension range
| Diameter | 6-160mm |
| Wall thickness | 1-10mm |
Piezo Ceramic ,Pzt Piezo Ceramics,Piezo Hemisphere,Pzt Piezoelectric Hemisphere
Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com