Folding reversing valve forced reversing device and usage method

Abstract

The invention discloses a foldable forced reversing device for a reversing valve and an application method of the device. The foldable forced reversing device comprises a device body, two adjusting positioning mechanisms and a horizontalness adjusting bolt group, wherein the adjusting positioning mechanism are respectively disposed at the left and right ends of the device body, the horizontalness adjusting bolt group is connected to the bottom of the device body and used for adjusting the relative horizontalness between the device body and the reversing valve, each adjusting positioning mechanism comprises an L-shaped horizontal telescopic arm, a swing arm, a pin, a vertical telescopic arm, a graduated adjusting screw and a valve element coaxial positioning ring, the swing arm is connected below the L-shaped horizontal telescopic arm, the vertical telescopic arm is connected below the swing arm, and the valve element coaxial positioning ring is fixed at the lower end of the vertical telescopic arm. The foldable forced reversing device has the advantages that the positions of a screw inserted into a valve element can be adjusted according to the types and the valve element depth of reversing valves, is flexible and convenient in adjusting, stable and firm in overall structure, convenient to mount and demount, and can be folded when not used, floor space is saved, and carrying is facilitated.

Description

Technical field [0001] The invention relates to a reversing valve auxiliary equipment, in particular to a device and a use method for forced reversing of a reversing valve of a hydraulic system, and belongs to the technical field of machinery. Background technique [0002] The hydraulic reversing valve is a hydraulic component used to switch the working state of the actuator in the hydraulic system. When the solenoid valve coil is burnt, the control system relay is damaged and other problems, the reversing valve fails to transfer power and other faults. It is unable to complete the functions that the system should have, and at this time, it is necessary to manually change the direction. [0003] At present, the commonly used manual forced reversing tool generally uses a welding rod or thin steel bar to be bent into a back shape and inserted into the position of the reversing valve spool to achieve reversing, or welded with a steel plate to form a mechanism and screwed into the reve...

AI Technical Summary

Problems solved by technology

However, for the situation where the reversing valve needs to keep reversing for a long time (for example, when the hydraulic system performs oil flushing, it is also necessary for the reversing valve to maintain a certain reversing position and switching position for a long time, so as to ensure the communication and reverse of the flushing circuit. flushing), it is difficult to do it only by manpower

In addition, large-scale hydraulic systems contain hydraulic reversing valves of different models and brands. Manufacture or weld forced reversing tools or devices for one reversing valve, but they cannot be used in another system and need to be made again, which has caused welding rod , steel plate material and a lot of labor waste

Due to the different hydraulic systems, it is often necessary to prepare a variety of forced reversing tools or devices, which brings inconvenience to actual maintenance

At the same time, this kind of reversing or device is relatively sharp, and it is easy to hurt people when it is carried; it is bulky and difficult to store

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