Fly jib auxiliary mounting device and crane

A technology for installation devices and cranes, which is applied to cranes and other directions, can solve problems such as the difficulty of manual direct knocking of pins, high production process requirements, and unacceptable problems, and achieve the effects of shortening the production cycle, increasing corporate income, and reducing equipment

CN103010970AInactive Publication Date: 2013-04-03SANY HEAVY IND CO LTD (CN)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-04-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a fly jib auxiliary mounting device and a crane; the fly jib auxiliary mounting device is mounted on a jib head of a main jib, and comprises a rocker jib; the rocker jib is hinged with the jib head; the rocker jib can swing under the action of the main jib to push the fly jib to move so as to align a pin hole on a fly jib joint fork with a pin hole on a main jib head shaft. The fly jib auxiliary mounting device provided by the invention is small in size, compact in structure, easy to mount, and low in manufacturing cost, needs no additional power supply, and thus greatly reduces the cost of the whole crane; the angle of the rocker jib is adjustable; the docking speed of the fly jib and the main jib is increased significantly; the pin hole on the fly jib joint fork can be aligned with the pin hole on the main jib head shaft rapidly; and the equipment working efficiency and the product market competitiveness are improved.
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Description

Technical field

[0001] The present invention relates to the field of construction machinery, and in particular to a jib auxiliary installation device and a crane including the jib auxiliary installation device. Background technique

[0002] At present, the installation and adjustment of the jibs of domestic medium and small tonnage truck cranes basically do not take effective measures to facilitate their installation. Manually knock in the pins to connect the jibs, which is difficult to assemble, laborious and time-consuming. However, some foreign benchmark products generally adopt adjustment devices to facilitate the installation of the jib, such as hydraulic jacks, forks and aligning cylinders, etc., to achieve accurate and quick installation of the jib.

[0003] The technical problems of related technologies are:

[0004] 1) Due to the downward bending moment caused by the weight of the jib, it is difficult to align the hole on the jib fork with the hole on the main boom head sha...

Examples

Embodiment Construction

[0037] In order to be able to understand the above objectives, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other if there is no conflict.

[0038] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not covered by the specific implementations disclosed below. Limitations of cases.

[0039] The auxiliary jib installation device provided by the present invention, such as figure 1 As shown, it is installed on the boom head 1 of the main arm. The auxiliary jib installation device include...