The invention relates to the technical field of engineering parts, in particular to a cargo boom amplitude indicating device, a cargo boom and engineering machinery. The cargo boom amplitude indicating device comprises a bottom disc and a pointer (2), the pointer (2) is arranged on the bottom disc and can swing relative to the bottom disc along with the action of the cargo boom, the bottom disc comprises first scales used for displaying a lifting angle of the cargo boom and second scales used for displaying a lifting amplitude of the cargo boom, and the second scales are set to display the amplitude obtained by the product of a boom length value of the cargo boom and a cosine value of the angle, so that the first scales and the corresponding second scales can be simultaneously indicated through the pointer (2). According to the cargo boom amplitude indicating device, the cargo boom and the engineering machinery, the lifting angle and the lifting amplitude of the cargo boom can be observed simultaneously, and efficient and accurate operation can be achieved.
本发明涉及工程部件技术领域,具体地,涉及一种起重臂幅度指示装置、起重臂及工程机械。所述起重臂幅度指示装置包括底盘和指针(2),所述指针(2)设置于所述底盘上并能够随着所述起重臂的动作相对于所述底盘摆动,所述底盘包括用于显示起重臂起重的角度的第一刻度和用于显示所述起重臂起重的幅度的第二刻度,所述第二刻度设置为显示由所述起重臂的臂长值与所述角度的余弦值的乘积得出的幅度,以能够通过所述指针(2)同时指示所述第一刻度和对应的所述第二刻度。该起重臂幅度指示装置、起重臂及工程机械既可以同时观测到起重臂的起重角度和起重幅度,能够高效准确的作业。
Cargo boom amplitude indicating device, cargo boom and engineering machinery
起重臂幅度指示装置、起重臂及工程机械
2021-06-01
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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