Automatic leveling device for forklift gantry
An automatic leveling and forklift mast technology, applied in the direction of lifting devices, etc., can solve the problems of inaccurate mast movement control, low corner signal conversion precision, small corner signal threshold, etc., to achieve wide corner signal threshold, low requirements, cost-saving effect
Inactive Publication Date: 2020-05-08
BYD CO LTD
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Problems solved by technology
[0003] The object of the present invention is to provide an automatic leveling device for a forklift mast, which aims to solve the problems existing in the existing forklift mast inclination control device due to the small threshold value of the rotation angle signal and the low conversion accuracy of the rotation angle signal, which leads to the controller's action on the mast. Control imprecise and costly problems
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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] like Figure 2-6 Shown is the preferred embodiment provided by the present invention.
[0034] It should be noted that, when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
[0035] It should also be noted that the orientation terms such as left, right, up, and down in this embodiment are only relat...
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The invention relates to the technical field of forklift gantry control and adjustment, and provides an automatic leveling device for a forklift gantry. The automatic leveling device comprises a fixing block, a hydraulic cylinder, a rotating shaft, a first connecting rod, a second connecting rod, a rotation angle sensor and a controller. During working, when the gantry inclines forwards or backwards under the action of a piston rod of the hydraulic cylinder and a fixing block, the first connecting rod is driven to swing, and the first connecting rod drives the second connecting rod to rotate around the rotating shaft; and the rotation angle sensor and the rotating shaft rotate coaxially to generate a rotation angle signal, the rotation angle signal is transmitted to the controller, and thecontroller sends an instruction to a hydraulic control system of the hydraulic cylinder according to the actual condition. In the process, the forward inclination rotation angle and the backward inclination rotation angle of the gantry can be converted and amplified through swinging of the first connecting rod and the second connecting rod, so that the rotation angle of the rotation angle sensoris large; and in the way, the rotation range of the rotation angle sensor is large, the formed rotation angle signal threshold value is wide, the controller can control the action of the gantry more accurately, the requirements on the rotation angle sensor and the controller are low, and the cost is low.
Description
technical field [0001] The invention belongs to the field of forklift mast control and adjustment technology, in particular to an automatic leveling device for a forklift mast. Background technique [0002] like figure 1 As shown, the Chinese invention patent application with the publication number "CN204022412U" discloses "a forklift gantry tilt control device", which includes a tilt cylinder 11 and a lifting cylinder, and is characterized in that it also includes a controller, and the signal of the controller An inclination sensor is connected to the input terminal and an oil pump motor is connected to the signal output terminal of the controller. A trigger switch, a forward tilt switch and a backward tilt switch are connected in parallel between the multi-channel signal input terminal of the controller and the voltage input terminal. Between the multi-channel signal output terminal of the device and the ground terminal, there are forward-tilt solenoid valves and backward...
Claims
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Login to View More IPC IPC(8): B66F9/22B66F9/08
CPCB66F9/08B66F9/22
Inventor 赵荣尊韩继峰张陆峰代小艳张超武
Owner BYD CO LTD