Why is the hydraulic motor weak?
As the core component of the hydraulic system, the performance of the hydraulic motor directly affects the operating efficiency of the equipment. Among the hydraulic system failures that have been hotly discussed on the Internet recently, "hydraulic motor is weak" has become a frequent topic. This article will combine the hot discussions and technical analysis of the past 10 days to structure and sort out the common causes and solutions of hydraulic motor power failure.
1. Statistics of popular hydraulic failure topics on the entire network (last 10 days)
| Ranking | Topic keywords | search volume index | Main discussion platform |
|---|---|---|---|
| 1 | Hydraulic motor is weak | 18,700 | Zhihu/Mechanical Forum |
| 2 | Insufficient pressure in hydraulic system | 15,200 | Station B/Tieba |
| 3 | Hydraulic oil contamination detection | 12,800 | Douyin/professional website |
| 4 | Leakage inside the motor | 9,500 | Industry forum |
2. Five core reasons for the failure of hydraulic motors
1. Hydraulic oil problem
Multiple recent maintenance cases show that hydraulic oil problems account for 34%:
| Specific performance | Detection method | solution |
|---|---|---|
| Oil pollution (new discussion volume +27% in 10 days) | Particle size detection | Change oil + clean system |
| Oil temperature is too high | Infrared thermometer | Add cooling device |
| Oil viscosity does not match | Viscometer testing | Replace oil as per standard |
2. Insufficient system pressure
Hotspot maintenance video data shows that stress problems account for 28%:
| Pressure abnormality type | normal range | Adjustment method |
|---|---|---|
| Pump output pressure is low | ≥90% of rated pressure | Adjust relief valve |
| Pipe pressure loss | <1MPa/10m | Optimize pipeline layout |
3. Internal wear of the motor
A recent industry report pointed out that valve plate wear problems increased by 15% year-on-year:
• The gap between the plunger and the cylinder needs to be replaced if it is >0.03mm
• Bearing failure will occur if the clearance exceeds 0.1mm
4. Abnormal load matching
New smart diagnosis cases show:
| Load type | Characteristic expression | Treatment method |
|---|---|---|
| Instantaneous overload | Pressure fluctuation＞20% | Install buffer valve |
| Mechanical stuck | Abnormal increase in current | Check transmission mechanism |
5. Control valve failure
Latest maintenance statistics:
• The directional valve stuck failure rate is 21%
• Flow valve adjustment failure accounts for 13%
3. Top 3 hotspot solutions
| Plan | Difficulty of implementation | cost budget | Durability of effect |
|---|---|---|---|
| Full system replacement of hydraulic oil | ★★★ | 2000-8000 yuan | 6-12 months |
| Motor critical component repair kit | ★★★★ | 500-3000 yuan | 3-6 months |
| Install intelligent monitoring system | ★★ | 15,000-30,000 yuan | Effective for a long time |
4. Preventive maintenance suggestions
Combined with recent technical discussion hot spots:
1. Carry out oil testing every 500 hours (the latest standards increase the frequency of testing)
2. Use online monitoring equipment (the number of views of Douyin-related videos exceeded 2 million)
3. Regularly check the motor housing temperature (temperature difference >15°C requires early warning)
Conclusion:According to the latest discussion trend across the Internet, the problem of hydraulic motor failure is transforming from traditional maintenance to intelligent prevention. It is recommended that users establish a complete hydraulic system health file based on equipment usage conditions, which has become a new hot spot in the industry.
check the details
check the details
en
