Connecting structure of engineering mechanical chassis

A technology for connecting structures and construction machinery, which is applied in the substructure, transportation and packaging, vehicle parts, etc., can solve the problems of limited bearing capacity, stress concentration, and single load-bearing structure, and achieve reduced welding costs, less stress concentration, and reliable connections sex high effect

CN106184372AActive Publication Date: 2016-12-07XCMG EXCAVATOR MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-12-07

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Abstract

The invention discloses a connecting structure of an engineering mechanical chassis. The connecting structure comprises an H frame, a longitudinal beam, H frame bending connecting plates and an H frame horizontal connecting plate, wherein the H frame bending connecting plates and the H frame horizontal connecting plate are used for enabling the H frame and the longitudinal beam to be connected; the H frame bending connecting plates are welded to the H frame horizontal connecting plate, so that a Z-shaped structure is formed; the H frame bending connecting plates are welded under one end of the H frame; and the H frame is fixedly connected with a longitudinal beam top plate of the longitudinal beam in a vertical direction through the H frame bending connecting plates, and is fixedly connected with a longitudinal beam bottom plate of the longitudinal beam in a horizontal direction through the H frame horizontal connecting plate. According to the connecting structure disclosed by the invention, the connection of the H frame and the longitudinal beam is formed by the top surfaces and the side surfaces; a stereoscopic connecting structure is uniform in bearing, and stress concentration is not liable to exist; the structural strength of the connection is greatly enhanced, and the connecting reliability is high; under the premise that the total height of the chassis is guaranteed, an enough structural space is provided for the H frame, so that the situation that the H frame has enough structural strength is guaranteed; the structure is simple, and the connecting manner is mainly embodied by one bending plate; and the number of welding structures is reduced, so that welding cost is reduced.
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Description

technical field

[0001] The invention relates to a connection structure, in particular to a construction machinery chassis connection structure, which belongs to the technical field of construction machinery. Background technique

[0002] At present, the construction machinery chassis, especially the crawler type construction machinery chassis, generally consists of three parts: the H frame placed in the middle for connecting the boarding vehicle and the longitudinal beams on the left and right sides used to arrange the walking system. For the chassis of large-scale construction machinery, due to its large dead weight and large lateral peripheral dimensions, it is not convenient for overall transportation, so a detachable chassis is required.

[0003] In the existing detachable construction machinery chassis, the main form is that the H frame is lapped on the longitudinal beam. The H frame of this structure is completely placed on the top surface of the longitudinal beam, and...

Examples

Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing.

[0021] Such as Figure 1 to Figure 3 As shown, a construction machinery chassis connection structure includes a longitudinal beam 1 and an H frame 2, and also includes an H frame bending connecting plate 201 and an H frame horizontal connecting plate 202 for connecting the H frame 2 to the longitudinal beam 1, and the H frame The frame bending connecting plate 201 and the H frame horizontal connecting plate 202 are welded to form a Z-shaped structure; the H frame bending connecting plate 201 is used as the Z-shaped horizontal folding upper part and the H frame horizontal connecting plate 202 as the Z-shaped horizontal bottom edge The welding is in a Z-shaped structure; the H frame bending connecting plate 201 is welded under one end of the H frame 2; the H frame 2 is fixedly connected with the longitudinal beam top plate 101 of the longitudinal beam 1 through the H frame be...