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| Injury situation | Reasons | Countermeasures | | Early broken belt | 1, does not take into account passive round of the inertial force.
2, the excessive load due to accidents or passive round to stop,
Thus substantially increasing the power load
3, a small pulley, belt forcibly bending over. | 1, check design.
2, Design Checker.
3, check design changed more than the minimum number of teeth of the pulley.
4, moving, storage, installation operation
Should take full and careful. | | Belt edge wear | 1, parallel axis of closed.
2, bearing rigid inadequate.
3, pulleys ribs bending.
4, pulley diameter smaller than the width belt. | 1, for more on the pulley is positioning.
2, increase the rigidity of bearings, solid and fixed.
3, Ribs amended or replaced.
4, check design. | | Wear belt tooth surface | 1, the load was too great.
2, belt tension was too great.
3, wear dust infiltration.
4, the relationship between the oil belt to contraction. | 1, improved design.
2, reduced belt tension.
3, improve the environment, increase shields.
4, not belt contaminated with oil or oil belt. | | Belt-foot drop-off | 1, jumping gear.
2, Shaorong passive wheel bearings and other accidents. | 1, a: load too large.
b: Tension early insufficient.
c: meshing teeth too small.
d: Bearing rigid inadequate.
2, a: check design.
b: Tension appropriate adjustments.
c: increased pulley diameter, increased meshing teeth.
d: replacement bearings, bearings to increase rigidity and fixed solid. | | With wear and cracking Beijiao | 1, the tension positioning inaccurate.
2, encountered mechanical framework.
3, a long-term low-temperature state. | 1, the amendment tensioner position.
2, check and fix mechanical parts.
3, improving the environment temperature. | | Softening with Beijiao | 1, high temperature.
2, tensioner to stop.
3, stained with oil. | 1, improve the environment temperature.
2, checking, adjusting tensioner.
3, not due to a change of oil or oil belt. | | Belt vertical cracks | 1, pulley belt beyond the edge of operation.
2, vol belt on the pulley of the ribs.
3, installation of pulleys, or forcibly dragged into the pulley over Ribs. | 1, adjusted pulley position.
2, enhanced bearing rigid, fixed and solid.
3, a: Ribs removed.
b: to shorten the distance between shaft, fitted with belt.
c: relax loaded belt tensioner. | | Zhang part of the anti-fracture | Infiltrated debris or sharp edges of the residue. | Improve the environment, increase shields. | | Belt contraction | Aniline due to the low point of aromatic oils.
| Not stained with oil, use good oil resistance of belt. | | Running big noise | 1, belt tension too.
2, the two axis parallel inaccurate.
3, greater than the width of belt pulley diameter.
4, load too large.
5, mesh belt and pulley bad. | 1, reduce tension (not prevail jump teeth)
2, the positioning adjustment pulley.
3, check design.
4, check design.
5, check belt and pulley. | | Tooth wear belt | 1, the load was too great.
2, belt tension was too great.
3, the pulley material bad.
4, wear dust infiltration. | 1, check design.
2, reduce tension.
3, the use of high hardness of the material surface hardening.
4, improve the environment, increase shields. | | Elongate the look | 1, the short distance between the axis.
2, pulleys soft material. | 1, the distance between the axis adjustment, reinforcing the support bearings.
2, the use of rigid material pulley surface hardening. |
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