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PRODUCTS
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Product classification
ME Double Beam Double Trolley Hook Gantry Crane
- Commodity name： ME Double Beam Double Trolley Hook Gantry Crane
- Description
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Crane Design: Note: (Local factory supplies at 10% below market price, free on-site survey, quick custom production and installation. If any quality issues arise after product use, including human factors, an emergency repair plan will be initiated within 30-60 minutes).
Based on the needs of modern production, the optimized design of cranes is particularly important. A good design plan can improve the overall performance of the machine while fully ensuring customer usage, saving steel and processing costs, and enhancing economic benefits.
Main Structure
The crane consists of a gantry, trolley running mechanism, cab device, power drive device, hoist power supply system, trolley running correction device, anchoring mechanism, etc.
1. Gantry
The gantry consists of a main beam, a pair of upper cross beams (matching rigid legs and flexible legs), two rigid legs, two flexible legs, and two lower cross beams.
The design of the gantry crane meets the strength requirements for the specified working capacity, and stiffness is a key issue to be addressed in the design of the gantry crane.
Through design calculations, the main beam structure is 1560mm wide at the top, 3000mm high, and 718mm wide at the bottom, designed for electric hoist running tracks, made of 45# I-beam with a base of 16mm steel plate.
The main beam is connected by web plates, side plates, load-bearing web plates, and running tracks, forming a structure that is wide at the top and narrow at the bottom. The top width ensures the horizontal stiffness of the large-span crane, while the bottom narrow part ensures the stable operation of the electric hoist along the main beam track.
2. Transmission of the Walking Mechanism
The design of the walking mechanism is based on the weight of the gantry crane, considering the working environmental conditions, and selecting the motor, reducer, and brake. In previous designs of gantry crane running mechanisms, the connection between the motor and reducer typically used elastic couplings or rigid couplings, which resulted in high noise, large inertial forces, high failure rates, significant normal shaking, and discomfort for operators, creating a sense of insecurity. Through analysis, a coupling scheme was selected, greatly reducing the inertial forces during starting and braking, and improving work performance.
3. Power Input
The power input of the gantry crane is completed by the power cable moving with the gantry crane. The cable is wound on a cable drum, and the traditional cable drum's retraction is based on the crane moving to drag the cable (spring type), which puts a lot of stress on the cable and can easily cause damage. Therefore, an electric drum device (with a stall type) was adopted in the design, with a reasonable structural layout, improving the damage to the cable during operation.
4. Safety Devices
Since two electric hoists run on the same track, travel switches are installed at the relative positions of the electric hoists to prevent collisions during operation. The electric hoists themselves already have height limiters and overload controllers. Due to the large span, the trolley running end beam is equipped with a trolley running track correction device to ensure the crane runs stably along the track.
1. Lifting Capacity: 3t-32t
2. Lifting Height: 6m-20m
3. Span: 10m-35m
4. Working Level: A3-A5 The weights provided in this sample are design values, manufacturing values +15%.
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Address: East Section of Weishili Road, Lifting Industrial Park, Changyuan City, Henan Province
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