A dual-slide pull rod tipping limit mechanism

Abstract

The invention provides a double-slide pull-rod tipping limit mechanism comprising a limit pull rod and a slide assembly. The lower end of the limit pull rod is rotationally connected with a mounting seat through a bottom pin shaft; the slide assembly comprises a first slide and a second slide arranged parallelly and oppositely, the first slide and the second slide are fixedly connected through a slide plate groove, and a slide plate is arranged in the slide plate groove; the first slide and the second slide are connected with the upper end of the limit pull rod through a guide positioning device, and the limit pull rod can slide on the slide plate front and back; the upper end of the slide assembly is rotationally connected with an ejection rod component. The double-slide pull rod is used for guide and positioning, and the limit mechanism can function in limiting when a driving cab tips to a certain needed angle and is firm, safe and reliable in connection; the limit mechanism has automatic guiding capability and can automatically follow and return in the returning process of the driving cab without jamming and the like; the limit mechanism is flexible in motion, reliable in repeated use and quick to assemble.

Description

technical field [0001] The present invention relates to a double-slide pull rod tipping limit mechanism, which is mainly used to protect the cab of a forklift when it is tipped over. , tractor, lifting platform machinery. Background technique [0002] Large-tonnage forklifts (especially heavy-duty forklifts above 10 tons) need to be maintained and repaired, due to the large-volume coverage of the cab, it is difficult to maintain. In order to facilitate maintenance and repair, the cab of the forklift can be designed to be tiltable. Use the tilting oil cylinder to lift the cab to tilt to achieve the purpose of convenient maintenance. After the maintenance is completed, the cab can be quickly returned to the working state without disassembly and hoisting of the cab. In practical applications, the larger the tilting angle of the cab, the more convenient it is to maintain, but if the angle is too large (40-45°), the center of gravity of the cab exceeds the center of rotation o...

AI Technical Summary

Problems solved by technology

In practical applications, the larger the tilting angle of the cab, the more convenient it is to maintain, but if the angle is too large (40-45°), the center of gravity of the cab exceeds the center of rotation of the support, and there will be a risk of excessive rollover. Although the telescopic cylinder piston rod It has a certain stopping effect, but it is still unsafe in the event of an accident (oil cylinder failure, oil pipe burst, leakage, etc.)

[0003] At present, the commonly used squeeze-type limiter is used in the forklift industry market, which has the following disadvantages: 1. It is inconvenient to replace, and the limiter gradually fails due to long-term force; 2. The relative movement of the mechanism is not flexible, and it is prone to jamming, which makes the cab Difficult to return; 3. Generally, there is no lubrication, which leads to serious wear, or lubrication requires continuous refilling of grease, which is inconvenient to operate and poor in cleanliness; 4. Large frictional resistance, resulting in additional work consumption

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