Slewing Mechanism and Spare Parts
A slewing mechanism is an essential component of a Tower Crane that allows it to rotate horizontally. It enables the crane to reach different areas of a construction site without having to move the entire structure.
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The slewing mechanism typically consists of the following components:
1. Slewing Ring: The slewing ring is a large circular bearing that supports the entire weight of the crane and allows it to rotate. It is usually located at the base of the crane and is designed to withstand heavy loads and provide smooth rotation.
2. Slewing Motor: The slewing motor is responsible for providing the necessary power to rotate the crane. It is connected to the slewing ring and is controlled by the crane operator.
3. Gear Mechanism: The gear mechanism consists of a set of gears that transmit the power from the slewing motor to the slewing ring. It ensures smooth and controlled rotation of the crane.
4. Brake System: The brake system is an important safety feature of the slewing mechanism. It is designed to hold the crane in place and prevent any unintended rotation when the crane is not in operation.
5. Control System: The control system allows the crane operator to control the rotation of the crane. It typically includes joysticks or buttons that enable the operator to start, stop, and control the speed and direction of rotation.
Overall, the slewing mechanism plays a crucial role in the functionality and versatility of a tower crane. It allows the crane to move horizontally, reach different areas of a construction site, and perform various lifting tasks efficiently.
Dongbei Optoelectronics announced on July 7 that the consolidated revenue in July was 500 million yuan (NT$, the same below, equivalent to RMB 98.05 million), down 16.6% from the previous month and a significant decrease of 37.4% from the same period last year. Dong Bei Optoelectronics spokesperson Weng Congzhi said that the overall slowdown in July was mainly due to the international light fixtures clearing the light bulb inventory at a low price, affecting the market price order. In this regard, in addition to maintaining the current high-end performance models, Dongbei will also launch a low-cost design version of the bulb products to actively respond to market demand, it is estimated that after the third quarter, order demand should be seen monthly. Weng Congzhi pointed out that Philips, a large European and American manufacturer, vigorously promoted low-temperature bulbs of semi-circular LEDs. At present, the retail price of LED bulbs is about 3~4 yuan per piece, which has completely replaced the traditional energy-saving bulbs (CFL). Supply and demand and consumption will help. The global LED bulb penetration rate is only about 10-13% as of the first half of this year. Under the new lighting bulb architecture, it is estimated that the LED lighting penetration rate will double in the second half of the year, equivalent to one year of new creation. The demand for 10 to 1.2 billion bulbs. In addition, LED manufacturers Yiguang, Jingdian also announced the July revenue. Yiguang announced on the 7th that its revenue in July 2015 was 2.253 billion yuan (equivalent to RMB 442 million), down 7.21% from the previous month and down 13.75% from the same period last year. The accumulated revenue from January to July 2015 was 165.53. 100 million yuan (equivalent to about RMB 3.249 billion), an increase of 0.13% from the same period last year. On the 7th, Jingdian announced that its revenue in July 2015 was 2.11 billion yuan (equivalent to RMB 414 million), an increase of 10.07% from the previous month and a decrease of 24.23% from the same period of last year. The accumulated revenue for January-July 2015 was 155.26. 100 million yuan (equivalent to RMB 3.084 billion), a decrease of 9.48% compared with the same period last year