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Has been committed to its HMB hydraulic attachments & excavator attachments.
due to the use frequency is very high, walking excavator system failure and presents the multiple. Today, cause a lot of walking excavator unilateral fault of excavator attachments small make up to focus on walking and walking speed reducer motor fault. Treatment method:
can dig the friends in determining the cause of the problem after the repair or replacement excavator attachments walking motor ( Walking speed reducer)
the motor with pump in the structure of excavator attachments are very similar, as power output device of hydraulic system, it is not like driving hydraulic oil pump, driven by high pressure of the hydraulic oil but the and generate torque and continuous rotary motion
position and structure diagram:
walking motor assembly at the bottom of the excavator, each a left and right sides, direct drive crawler machine can move forward, backward and turning.
the role of excavator parts brake valve:
brake valve including safety oil suction valve, balance valve control when walking motor stops walking due to the inertia of the body to produce the motor and rotary inertia force, smooth braking, make it stop.
excavator accessories hydraulic motor function:
the hydraulic motor for the swashplate axial piston motor, the pressure coming from the main pump oil liquid pressure into rotary motion.
parking brake function:
parking brake play through friction plate brake mechanism to prevent the excavator parked on the ground and cause of the tilt slide, the action of sliding phenomenon, with the hydraulic motor parts into one structure.
1。 The motor assembly
2. Floating oil seal
3. Wheel hub
5. Planet carrier
8. Planet carrier
9. Gear ring
10. Slide valve
12. Discharge device
14. Balancing valve
20. Valve plate
21. Cylinder block
22. Guide the locator
23. Inclined plate
24. Variable inclined plate
27. Brake piston
30. Friction plate
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