Mower vehicle frame attitude adjusting device

Abstract

The invention discloses a mower vehicle frame attitude adjusting device, and belongs to the ride type mower active safety technical field; the mower vehicle frame attitude adjusting device comprises gas springs, an air supply system and a control system; four gas springs are respectively arranged between a left front wheel, a left rear wheel, a right front wheel, a right rear wheel and the vehicle frame; an electronic control unit of the control system can keep a surge tank gas pressure to be in a given pressure scope according to differences between given values and actual measurement values of gas pressure, vehicle frame height and vehicle frame inclination angle, can control four height valves to inflate or deflate the gas springs so as to enable the vehicle frame to be in a proper height, thus adapting to vehicle frame ground clearance requirements. The mower vehicle frame attitude adjusting device can reduce vehicle frame height when working in a flat lawn, thus reducing center of gravity, and improving driving stability in high speed working; the mower vehicle frame attitude adjusting device can lift up the vehicle frame height when driving in an accidented lawn or in working, thus improving whole machine passing ability, and improving working safety.

Description

technical field [0001] The invention belongs to the active safety technical field of a mount-type lawn mower, and in particular relates to a frame attitude adjustment device of a mount-type lawn mower which integrates frame leveling control and frame height adjustment technologies. Background technique [0002] With the development of economy and urban construction, major cities are competing to build theme parks, stadiums and golf courses. These places are basically equipped with large areas of lawn green space. The pruning of these lawn green spaces is an important part of later management. Mechanized operations can not only improve production efficiency and reduce management costs, but also improve the quality of lawn mowing. Compared with push lawn mowers, hand-held lawn mowers and shoulder-back lawn mowers, the ride-on zero turning radius (ZeroTurnRadius, referred to as ZTR) lawn mower realizes the in-situ steering function of the lawn mower due to the forward and rever...

AI Technical Summary

Problems solved by technology

This mount-type ZTR lawn mower with axles and frame rigidly connected has serious deficiencies during operation: the first is that the bottom of the frame is easy to be on the top of the protrusions when working on uneven lawns because the height of the frame cannot be changed, so that The wheels lost their grip and slipped on the spot, resulting in poor passability of the whole machine; second, it is difficult to trim the landscape requirements with a variety of grass heights at a height of the frame; prone to lateral instability and rollover

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