Analyze the causes of cracks or fractures in the cardan shaft

In the whole process of applying universal joint shafts, cracks or fractures often appear. According to this common cause of failure, data analysis is carried out to find the cause of its output rate and improve it, so as to increase its service life and reduce equipment failure rate. , Let the machinery and equipment operate smoothly.

Reasons for cracks or fractures of cardan shafts and corrective measures:
1. Reasons during work: The key to this kind of common failures is the large number of truck rail ports, the worn out and uneven treads, and the change of the guard rail in the allowable natural environment, which causes the lifting equipment to roll in the whole process. The impact is great, and the indirect effect is on the universal coupling, which reduces the service life. It can adjust the guard rail, flatness, height difference, etc. of the rail of the lifting equipment cart, and adjust the rail port number. Carry out thermite welding to improve the office environment.

2. Uneven installation: The axle load of the brake system is too large, resulting in a large impact load borne by the single universal coupling, which is very easy to break. The axle load of the braking system can be adjusted so that the braking system is the same as that of the braking system, without the need for a separate universal coupling to bear excessive torque.

3. Production process: Low specifications of raw materials used in the manufacture of universal joint shafts, poor heat treatment methods, welding defects in the fork head and welding quality of electric welding, etc., will cause the universal joint to be very easy in the whole process of application. Create weak links. Based on the use of cost-effective universal couplings, quality can be ensured from raw materials, design schemes, and processing techniques, and the root causes of common failures of machinery and equipment caused by product quality problems can be reduced.

4. Selection of models and specifications: If the torque of the universal coupling does not meet the requirements of the application, it is very easy to crack or even break. At this time, the torque borne by the device can be checked and calculated to verify whether the torque meets the application regulations.

5. In addition to the reason for the torque, the product quality, installation, installation and office environment between the two are also closely related to the reasons for the fracture and crack of the cardan shaft.