Supporting leg device, chassis frame structure of crane and crane
A technology of chassis frame and crane, which is applied to the bottom support structure, hoisting device, braking device of hoisting equipment, etc., can solve the problems of unstable limit position of outriggers and difficult support.
Active Publication Date: 2020-10-30
HUNAN SANY MEDIUM TONNAGE HOISTING MASCH CO LTD
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Problems solved by technology
[0003] However, when the outriggers provided by the related art are opened to support the crane, the limit of the outriggers is unstable and it is difficult to provide reliable support.
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[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0032] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The invention relates to the field of engineering machinery, in particular to a supporting leg device, a chassis frame structure of a crane and the crane. The supporting leg device is used for the crane and comprises a mounting frame assembly, a first supporting leg, a second supporting leg and a first limiting piece, wherein the mounting frame assembly is arranged on a chassis frame of the crane,the first end of the first supporting leg and the first end of the second supporting leg are rotationally connected with the mounting frame assembly, the first supporting leg has a first closing position and a first opening position, and the second supporting leg has a second closing position and a second opening position; and the first limiting piece is arranged on the mounting frame assembly and used for abutting against at least one of the first supporting leg located at the first opening position and the second supporting leg located at the second opening position. According to the supporting leg device, the chassis frame structure of the crane and the crane, the stability of the supporting legs when the supporting legs are unfolded can be improved, and the reliability of the supporting leg device for supporting the crane is improved.
Description
technical field [0001] The invention relates to the field of engineering machinery, in particular to an outrigger device, a crane chassis frame structure and the crane. Background technique [0002] The construction machinery provided by the related technology, such as a crane, needs to be supported by multiple outriggers to ensure the stability of the crane during work. In order to prevent the outriggers from interfering with the movement of the crane, the outriggers can be set to be rotatable so that the outriggers can be stored when the crane is moved. [0003] However, when the outriggers provided by the related art are opened to support the crane, the limit of the outriggers is unstable and it is difficult to provide reliable support. Contents of the invention [0004] The purpose of the present invention is to provide an outrigger device, a crane chassis frame structure and a crane, which can improve the stability when the outriggers are opened, and improve the reli...
Claims
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IPC IPC(8): B66C5/00B66C13/00
CPCB66C5/00B66C13/00
Inventor 刘建培张志敏
Owner HUNAN SANY MEDIUM TONNAGE HOISTING MASCH CO LTD