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Excavator walking bearing of NTN
- Category: Excavator Bearing
- Description:Excavator bearing includes: Excavator walking bearing, excavator rotary bearing, excavator roller bearing, excavator...
- Email:admin@jngybearing.com
- TEL:+86 15165026537
- Company:Ji'nan Guang Yue Pml Precision Mechanism Ltd Of China
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Excavator bearing includes: Excavator walking bearing, excavator rotary bearing, excavator roller bearing, excavator gearbox bearing, excavator walking motor bearing, excavator walking drive bearing, excavator joint bearing, excavator gyration bearing bearing, and English non standard bearing used in excavator.
The installation and dismantling method of excavator bearing should be determined according to the structure and size of the excavator bearing and the matching nature of the bearing parts of the excavator. The pressure of installation and disassembly should be directly added to the end face of the bearing gear of the excavator, which can not pass the pressure through the rolling body of the excavator, because this will cause the indentation on the working surface of the excavator bearing, and affect the normal work of the excavator bearing, even the shaft bearing of the excavator will be damaged. Excavator bearing cage, seal ring, dust cover and other parts are easily deformed, installation or demolition of the pressure of excavator bearing can not be added to these parts.
Installation:
(1) improper adjustment of gear shift device, if the transmission of this type of excavator is mechanically shifting, the loosening of the transmission rod, longitudinal axis, horizontal axis and vertical fixed screw can also cause the "jump" of the transmission. Wear and tear of transmission mechanism
(2) abrupt change of external load due to the working nature of the excavator and the design reason of the machine itself, the sudden change of the external load will also lead to the "jump gear" of the transmission. When the surface of the road is uneven, the excavator makes the downhill or the unsuitable route, the sudden change of the external load will cause the sudden change of the load through the wheel and the transmission shaft on the gear gear of the transmission, so that the gear gear is disconnected because of the axial thrust, resulting in the "jump" of the transmission. Performance decline of self locking mechanism
(3) the transmission mechanism of the gear shift device of the excavator relies on the sliding gear sleeve to move axially on the fixed gear sleeve and meshes with the driven gear of each gear to achieve shift. In the course of frequent shifting, the teeth face of the above meshing gears can be easily tapered, resulting in the reduction of the meshing performance and the "jumping gear".
(4) in order to prevent the transmission from "jumping", the excavator has a self locking ball and spring in the box cover hole above the shaft of the gear shaft of the transmission II and III and IV and v. When the spring of the self locking function is weakened or broken, the self-locking performance of the self-locking mechanism will drop until it vanishes, causing the transmission to "jump gear". At the same time, if the groove on the positioning steel ball or the fork shaft is worn, it will also cause the transmission "jump gear".
(5) improper operation of the excavator on the ramp (especially downhill driving) will lead to the "jump gear" of the transmission if the operation is improper.
