A cart drive mechanism

Abstract

The invention discloses a gantry drive mechanism which comprises a tire, an inverted-L-shaped cantilever support and a drive device. The tire is installed on the inner side of the inverted-L-shaped cantilever support through a hub shaft. A containing tank is formed on the outer side of the inverted-L-shaped cantilever support. The drive device is partially arranged in the containing tank and comprises a motor, a torque transmission key, a half coupler, a telescopic universal joint and a hub reduction gear, wherein the motor, the telescopic universal joint and the hub reduction gear are sequentially connected through the torque transmission key and the half coupler; the hub reduction gear drives the hub shaft of the tire to rotate; the containing tank is located above the hub reduction gear; and the torque transmission key, the half coupler and the telescopic universal joint are located in the containing tank. According to the gantry drive mechanism, the tire can be overhauled, assembled and disassembled conveniently, the drive stability is high, and meanwhile the drive device is partially hidden in the containing tank of the support so as not to be exposed outside to be damaged under collision.

Description

technical field [0001] The invention belongs to the technical field of cranes, in particular to a cart driving mechanism for a container gantry crane. Background technique [0002] Container gantry crane (RTG) is a loading and unloading machine used for loading, unloading and stacking of containers at the wharf. The loading and unloading mechanism on the beam is composed. The container gantry crane uses the loading and unloading mechanism to store the containers from the terminal in the yard, or load the containers in the yard on the transportation equipment and transport them to the terminal. The drive mechanism of the container gantry crane is used to make the gantry span move smoothly along the yard. [0003] An existing cart drive mechanism, such as Figure 1-2 As shown, the wheel 1 is installed under an inverted U-shaped bracket 2, and a set of driving device is arranged on one side of the bracket. Reducer 5 is connected by shaft coupling 4, and reducer 5 drives smal...

AI Technical Summary

Problems solved by technology

[0005] 1) The motor and reducer are exposed and easy to be bumped and damaged;

[0006] 2) The combined transmission mode of the sprocket and the chain is unstable, and the chain is limited by the speed during transmission, the chain needs to be frequently adjusted and tensioned, and the chain is easy to break;

[0007] 3) The tires are straddled under the inverted U-shaped frame, making maintenance and disassembly inconvenient

Images