JPS5828050Y2 - Structure of simple dozer - Google Patents

Description

[Detailed description of the invention] This invention relates to the structure of a simple dozer in which the lower edge of the sheet metal for forming the earth removal surface is welded to the upper surface near the tip of the sheet metal for forming the excavation edge. This is an attempt to suppress the peeling of the welded portion of the sheet metal for forming the excavation edge and the lower end edge of the sheet metal for forming the earth removal surface by adding an extremely simple structure.

Embodiments of the present invention will be described in detail below with reference to illustrative drawings.

A dozer arm 3 is pivotally connected to a traveling machine base 2 equipped with a crawler-type traveling device 1 so as to be vertically swingable around a horizontal axis X, and a hydraulic cylinder is installed between the arm 3 and the traveling machine base 2. 4 are connected via a bracket 5 to drive and swing the dozer arm 3.

Welding the L-shaped excavation edge forming sheet metal 6 to the tip of the arm 3, and welding the lower end edge 7a of the earth removal surface forming sheet metal 7 to the upper surface near the tip of this excavation edge forming sheet metal 6,
The reinforcing sheet metal 8 is welded to the excavation edge forming sheet metal 6 with a large bead amount while standing up from the excavation edge forming sheet metal 6, and the above-mentioned excavation surface forming sheet metal 7 is attached to the back of this reinforcing sheet metal 8. By positioning the lower edge 7a and welding both 7 and 8, it is possible to avoid direct stress from being applied to the welded part of the lower edge of the excavation edge forming sheet metal and the excavation top surface forming sheet metal during earth removal work. The structure is designed to suppress peeling at the welded portion.

Side plates 9, 9 are welded to both sides of the sheet metal 7 for forming the earth removal surface, and at the welding point between the sheet metal 7 for forming the soil removal surface and the side plate 9, as shown in FIG. Both 7 and 9 are welded together with their edges protruding forward, and the protective member 10 is welded adjacent to the protruding portion of the side plate, thereby reducing the wear durability of both sides of the sheet metal 7 for forming the upper surface. It is designed to make it longer.

As shown in FIG. 5, this protection form may be configured such that the welded portion between the side plate 9 and the earth removal surface forming sheet metal 7 is covered with a protection member 10.

Incidentally, the reinforcing sheet metal 8 may be provided integrally with the sheet metal 7 for forming an upper surface as shown in FIG.

In summary, in the structure of the simple dozer described at the beginning, the present invention has a structure in which the excavation edge forming sheet metal is raised up from the excavation edge forming sheet metal at the welding point of the lower end edge of the excavation edge forming sheet metal and the earth removal surface forming sheet metal. The reinforcing sheet metal is integrally welded in the same state.

In other words, since the reinforcing member is provided in a state that is higher than the sheet metal for forming the excavation edge, it is possible to increase the amount of bead at the welding point between the sheet metal for forming the excavation edge and the sheet metal for forming the soil removal surface. It has now been possible to suppress peeling at welded areas by adding a simple structure.

Since the reinforcing member is provided in this way and the bead amount is increased, for example, compared to the case where the reinforcing member is not provided and the welding layer is further layered on top of the welding layer to prevent peeling. ,
Remove the oxide film from the welded area with a hammer etc.
It has the effect of reducing the great effort of grinding the surface and performing welding on top of it, and obtaining sufficient overlay.

[Brief explanation of drawings]

The drawings show an example of the structure of a simple dozer according to the present invention,
Fig. 1 is a cross-sectional side view of the main part, Fig. 2 is an enlarged sectional view of the main part, Fig. 3 is a sectional view taken along the line Ill-III of Fig. 1, and Figs. 4 and 5 show other embodiments. FIG. 6...Sheet metal for forming excavation edge, 7...Sheet metal for forming earth removal surface, 7a...Lower end edge, 8...
・Sheet metal for reinforcement.

Claims (1)

[Scope of Claim for Utility Model Registration] ■ A simple dozer structure in which the lower end edge 7a of the sheet metal 7 for forming the excavation edge is welded to the upper surface near the tip of the sheet metal 6 for forming the excavation edge, The structure of the simple dozer is characterized in that a reinforcing sheet metal 8 is integrally welded to the welded portion of the lower end edge 7a of the sheet metal 7 in a state rising from the excavation edge forming sheet metal 6. (2) Structure of the simple dozer according to item (2) of the claims registered as a utility model, characterized in that the reinforcing sheet metal 8 is separate from the sheet metals 7 and 6 for forming the soil discharge surface and for forming the excavation edge. . (2) The structure of the simple dozer as set forth in claim (2), wherein the reinforcing sheet metal 8 is integral with the soil discharge surface forming sheet metal 7.