How Is the Traction Saddle Connected to the King Pin?

Each link of King Pin needs to be interconnected, which is an important component that needs to be continuously researched and improved and is evolving towards the trend of serialization and generalization.

• What are the design points of King Pin?

• How is the traction saddle connected to the King Pin?

• What is the utility value of connecting a traction saddle to a King Pin?

What are the design points of King Pin?

The semi-trailer is connected to the towing seat by the interaction of the towing bolt and the locking hook. The King Pin is an interchangeable part. Therefore, when designing, care should be taken to ensure that the locking hook meets the requirements for installing the pull bolt. If the design of the locking hook can not meet the requirements well, this will directly affect the hanging of the trailer. Second, the locking hook and bolt block must work together as important moving parts during the movement process. Therefore, the organization of the appropriate place is very important. If this factor is not taken into account in the design of the lock hook and pen block, there is a possibility that the two will issue cards during the movement.

How is the traction saddle connected to the King Pin?

1. Before coupling, check that there is enough grease on the saddle plate of the tractor and apply the grease evenly.

2. Check for other foreign objects on the King Pin and traction skateboard, and ensure the cleanliness of the traction skateboard to reduce accidental wear after connecting.

3. Adjust the support legs so that the trailer's traction skateboard fits the height of the traction saddle. In general, the traction skateboard of the semi-trailer is 1–3 cm lower than the middle position of the upper plane of the traction saddle of the tractor. Be careful not to be too high, otherwise not only will it not be possible to make a connection, but also damage the traction seat, traction pin and associated parts.

4. Operate the locking mechanism of the traction seat to open the locking block and bring it into a free state.

5. When the tractor is reversing, the centerline of the tractor and trailer should be kept consistent, and the deviation of the centerline of the two vehicles should be limited to less than 40mm. Align the tractor's saddle with the King Pin and slowly reverse until you hear a "click" sound, and when the locking block returns, the tractor and trailer will be successfully towed.

6. Check that the pull seat lock block locks the King Pin and that it is firmly locked.

7. Move the tractor a little forward to check if the connection is ok.

What is the utility value of connecting a traction saddle to a King Pin?

When transporting in freight logistics, when connecting equipment, the tractor and the towed King Pin should be able to ensure a solid connection with each other. For large freight trains, the drawbar hole of the fixed train, as well as the specification and model of the towing seat bolt, should be related to the overall quality of the trailer.

The WONDEE brand and WONDEE products are committed to offering the most suitable King Pins at a reasonable price.