What Should Be Noted When Troubleshooting Single Axis Slewing Drive?

- Sep 07, 2017 -

What should be noted when troubleshooting Single Axis Slewing Drive?
One, Single Axis Slewing Drive new product is not flexible.
    Please check the production date of Single Axis Slewing Drive. If the time is longer (such as more than half a year), the climate is colder and it is possible to mix impurities such as salt spray into the raceway, which leads to ineffective operation (cold area and winter is more prominent). Exclusion method: after the force if the operation and no other abnormal can be used normally
Second, Single Axis Slewing Drive is not flexible after installation.
    May be the host mounting surface and Single Axis Slewing Drive mounting surface with the poor, resulting in the installation of Single Axis Slewing Drive axial clearance can not compensate for the deformation of Single Axis Slewing Drive, Single Axis Slewing Drive in a negative gap state, the rolling body in the raceway Difficulty (sometimes accompanied by abnormal sound); or the size of the gear meshing bad; or the size of the gear inside the card with foreign matter. Remediation: re-processing the host installation plane, so that the installation plane to meet the requirements; re-adjust the size of the gear as needed to engage the backlash, in particular, pay attention to the maximum position of the gear beating; check to ensure that the size of the gear meshing position without foreign matter; Axis Slewing Drive.
Third, Single Axis Slewing Drive is not flexible during use.
    Seal the damage, resulting in foreign body into the raceway (such as the use of poor conditions, the roller immersed in dust, etc.); check the size of the gear meshing, with or without foreign body teeth.
There are two main reasons for the early failure of single Axis Slewing Drive for digging machines:
One is Single Axis Slewing Drive broken teeth; the second is the railing damage. Among them, Single Axis Slewing Drive is the main reason, accounting for more than 90%, and the vast majority occurred in the excavator within six months after leaving the factory. This not only seriously plagued the credibility of the single Axis Slewing Drive factory product quality, but also adverse effects on the OEM market, so a serious solution to this problem is Single Axis Slewing Drive manufacturers and OEMs common goals and responsibilities, But also the two sides to further cooperation and common development of the fundamental guarantee.
What is the root cause of the early failure of Single Axis Slewing Drive?
Design issues; manufacturing problems, material problems; assembly problems or use problems. Through the following phenomenon is not difficult to find Single Axis Slewing Drive early cut the problem lies in the nature of:
1, in the past 12 years, double positive Single Axis Slewing Drive plant for a variety of host supporting Single Axis Slewing Drive more than 20,000 sets, in addition to excavator industry, only one Single Axis Slewing Drive broken teeth records, and Is happening in the late. Of course, the excavator's work conditions than the tower crane, car cranes and other most of the use of Single Axis Slewing Drive industry's host conditions to be harsh, faster rotation, the impact load is also large, the possibility of broken teeth correspondingly large Some, it is also an indisputable fact. Therefore, the excavator with Single Axis Slewing Drive modulus than the same raceway diameter of the other industry host with Single Axis Slewing Drive to large gear, and is hardened (generally 47HRC ~ 58HRC between the selected different hardness section) , Basically to meet the excavator on the Single Axis Slewing Drive gear requirements. Although the statistics show that the excavator with Single Axis Slewing Drive early break the probability of teeth is greater than other hosts, but also limited to very few two or three excavators, most of the models rarely single Axis Slewing Drive early fault accident occurred The
2, from our grasp of the data analysis, the vast majority of 20 to 22 ton at home and abroad excavator use Single Axis Slewing Drive gear modulus are 10mm (or diameter section = 2.5), heat treatment and accuracy level is basically the same, domestic Excavators generally use standard tooth height and standard pressure angle.
The effect of the early detent is not the circumferential driving force, but the radial force applied to the meshing with which the meshing is engaged, and the axis of the pinion with the individual axis Slewing Drive The gear shaft is not parallel. This force occurs in the ground during the excavation of the ground reaction force, because Single Axis Slewing Drive has a gap, and Single Axis Slewing Drive inner and outer ring were connected to the upper and lower parts under the action of the overturning moment, will occur in Single Axis The relative inclination of the Slewing Drive through the axial profile of the boom produces a relative displacement in the radial direction of the main shaft along the single Axis Slewing Drive. The amount of displacement is comparable to that of the Single Axis Slewing Drive. The pinion meshing with the Single Axis Slewing Drive is mounted in the opposite direction of the boom, and when the gap between the two sides is too small, the pinion is pressed against the large gear, which in this case should be driven by Single Axis Slewing Drive The load on the raceway is supported by the gear, and the axis of the original gear is further aggravated by the reaction of the pinion, so that the pressing force acting on the large gear is concentrated in the upper part of the tooth width.

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