Quickly replaceable container front crane gearbox shift electric control device

Abstract

The utility model relates to container technical field, namely a quick replaceable container front crane gearbox shift electric control device. It includes the casing, and the casing has the input and output, namely with the same specification car gauge level plug socket of original car shift lever, gearbox solenoid valve butt joint, and the control circuit in casing includes PLC, and PLC is equipped with the forward gear, reverse gear, 1, 2, 3 gear signal interface of shift combination switch sending, and PLC has the output to five -way non -contact module, and is connected with output. The gearbox shift control for container front crane can be quickly plugged in and plugged out when the matched import gearbox control device suddenly fails, resumes operation, guarantees the continuity of container freight operation, has higher popularization and application value. It has the characteristics that the structure is simple, and the multi -gear shift control can be realized quickly.

Description

Technical Field

[0001] This utility model relates to the field of container technology, specifically a fast-replaceable electronic control device for shifting gearboxes of container front-end cranes. Background Technology

[0002] In the existing technology, the equipment used before the improvement: Most domestic reach stackers use the American Dana 36000 gearbox, which requires a matching original model APC120 gearbox dedicated computer (see...). Figure 4 Before the improvement, the original system experienced frequent malfunctions, easily generating various fault codes that could lead to gearbox torque limiting or even complete machine shutdown, affecting the continuity of container freight operations and posing safety hazards. Troubleshooting and repair were difficult and time-consuming, requiring on-site inspection by professional technicians. In most cases, the entire imported control system needed to be replaced, resulting in high repair costs (around 30,000 RMB) and long delivery times, leading to prolonged equipment downtime. This was unaffordable for ports and railway stations, causing significant economic losses. (Original machine control diagram shown.) Utility Model Content

[0003] The purpose of this invention is to provide a quickly replaceable electronic control device for the gearbox shifting of a container front-end crane, addressing the aforementioned shortcomings. This solves the problems of frequent malfunctions, difficult troubleshooting and maintenance, and high maintenance costs associated with imported APC120 gearbox control devices. It allows for rapid replacement in the event of a sudden equipment failure, requiring no professional personnel or additional adjustments, quickly restoring equipment operation, ensuring the continuity of container freight operations, and eliminating related safety hazards.

[0004] The technical solution of this utility model is: a quick-replaceable electronic control device for the gearbox shifting of a container front-end crane, including a housing with an input end and an output end, namely, a vehicle-grade plug and socket of the same specification that connects to the original vehicle's shift lever and gearbox solenoid valve. The control circuit inside the housing includes a PLC and a contactless module. The PLC input end connects to the original vehicle's shift lever through a socket, and the PLC output point is amplified by the contactless module and connects to the gearbox solenoid valve through a socket.

[0005] The advantages of this utility model are: 1. The gearbox shifting control for container front-end cranes (a type of large loading equipment) can be quickly plugged in and replaced in case of a sudden failure of the original imported gearbox control device, restoring operation and ensuring the continuity of container freight operations, thus possessing high application value. 2. The circuit structure is simple, built using general-purpose industrial-grade electronic components, with manufacturing costs far lower than imported control devices. The input and output terminals are equipped with automotive-grade plugs and sockets of the same specifications as the original vehicle, allowing drivers to directly plug and unplug and replace them without the need for professional personnel. 3. It does not rely on the original vehicle's temperature, pressure, and speed detection signals, enabling rapid multi-gear shifting control. The circuit has strong stability and can adapt to complex outdoor operating environments, especially suitable for low-temperature operating environments such as Northeast China.

[0006] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0007] Figure 1 This is a connection diagram showing the usage state of this utility model.

[0008] Figure 2 This is a block diagram of the circuit control principle of this utility model.

[0009] Figure 3 This is a PLC circuit schematic.

[0010] Figure 4 This is the connection diagram of the APC120 in its usage state before the improvement. Detailed Implementation

[0011] See Figure 1 , 2 3. A quick-replaceable electronic control device for the gearbox shifting of a container front-end crane, comprising a housing with input and output terminals, namely, automotive-grade plugs and sockets of the same specifications that interface with the original vehicle's gear shift lever and gearbox solenoid valve. The control circuit inside the housing includes a PLC and a contactless module. The PLC input terminal connects to the original vehicle's gear shift lever via a connector, and the PLC output point, after power amplification by the contactless module, connects to the gearbox solenoid valve via a connector. The PLC operates according to its designed program, calculating and outputting the shifting signal from the gear switch to the five-channel contactless module. The output connectors are connected to the same input / output sockets as the original vehicle's computer, allowing direct interchangeability with the original vehicle's computer. The program calculation ensures the shifting rules required by the gearbox.

[0012] The shift combination switch sends forward, reverse, 1st, 2nd, and 3rd gear signals, which are then processed by the PLC. (The original gearbox does not output signals one-to-one; it operates according to certain rules, which are derived from disassembling the gearbox. The PLC is the key to completing this calculation.) The signals are then output to the five-channel contactless module, which connects to the signal input terminal of the front-mounted gearbox solenoid valve via an output socket. This drives the five-channel hydraulic system to complete the gearbox shifting action. Both the input and output terminals are equipped with automotive-grade plugs and sockets of the same specifications as the original vehicle.

[0013] Working principle: The logic conversion circuit directly analyzes the operation signal of the front-mounted gear shift lever and transmits the corresponding electrical signal to the gearbox solenoid valve, thereby controlling the gearbox to complete the forward, reverse, 1st-4th gear and neutral gear shifting actions.

[0014] Instructions for use: When the imported APC120 gearbox control device that comes with the front crane suddenly malfunctions, causing the equipment to limit torque and stop, the operator can directly disconnect the faulty AC120 device and connect this device to the original vehicle's shift lever and gearbox solenoid valve through the automotive-grade plug and socket. No additional debugging is required to start the equipment and resume normal operation.

[0015] The above description is merely a specific embodiment of this utility model, and the various examples do not constitute a limitation on the substantive content of this utility model.

Claims

1. A quick-replaceable electronic control device for shifting gearboxes of container reach stackers, characterized in that... The system includes a housing with input and output terminals, which are automotive-grade plugs and sockets of the same specifications that interface with the original vehicle's gear shift lever and transmission solenoid valve. The control circuit inside the housing includes a PLC and a contactless module. The PLC input terminal connects to the original vehicle's gear shift lever through a connector, and the PLC output point is amplified by the contactless module and then connects to the transmission solenoid valve through a connector.

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