KR200165813Y1 - A plate for absorbing shock of boom in heavy equipment - Google Patents

Abstract

The present invention relates to a boom shock absorbing plate of heavy equipment, the plastic plate 10 in contact with the bottom of the structure and the first iron plate 20 attached to the bottom of the plastic plate, the compression transmitted from the first iron plate 20 In a plate composed of a rubber plate 30 which absorbs a load and a second iron plate 40 attached to the lower end of the rubber plate 30, a plurality of through holes 22 are formed in the first iron plate 20 and the second iron plate 40. And 42 are respectively formed, and protrusions 32 are formed at upper and lower ends of the rubber plate 30 so as to correspond to the through holes 22 and 42, and the rubber plate 30 is formed of the first and second iron plates 20 and 40. And compression molding to form a structure in which the protrusions 32 of the rubber plate 30 are coupled to the through holes 22 and 42, so that the compressive load of the upper structure is absorbed while the rubber plate 30 expands, and the rubber plate 30 is formed. Since the protrusion 32 of the first and second iron plates 20 and 40 is coupled to the through holes 22 and 42, the rubber plate 30 is prevented from slipping between the first and second iron plates 20 and 40. It is possible to minimize the damage comes from the deformation of the rubber (30).

Description

A plate for absorbing shock of boom in heavy equipment

The present invention relates to a boom shock absorbing plate of heavy equipment, and more particularly to a boom shock absorbing plate of heavy equipment to minimize the deformation caused by the frame load so that the heavy boom structure is not damaged.

In general, the boom structure and the like for the concrete pump truck and heavy equipment is provided with a boom shock absorbing plate for absorbing the impact applied by the load of the structure.

A typical example of the boom shock absorbing plate of the heavy equipment is described with reference to FIG. 3 as follows.

As shown in FIG. 4, the boom shock absorbing plate overlaps the plastic plate 100, the first iron plate 110, the rubber plate 120, and the second iron plate 130 in order from the top, and as a high information bolt 140. To lock them together.

By the way, the conventional shock absorbing plate, as shown in Figure 5, when the rubber plate 120 is subjected to a shear compressive force between the first and second iron plate (110,130) when the load of the structure is applied to the top plate of the rubber plate 120 The first and second iron plates 110 and 130 were deformed while sliding to both sides. That is, the rubber plate 120 is deformed because it is subjected to the shear compressive force by the structure, the deformation of the rubber plate 120 is broken due to the shape deformation of the plate plate. Accordingly, the upper structure damages the upper structure and the lower structure by protruding the high information bolt 150 due to the contraction of the plate plate, and also prevents the plate plate from absorbing the shock transmitted from the lower portion. There was a problem.

Therefore, the present invention was devised to solve the above problems, and minimizes the deformation of the rubber plate by the load of the structure to prevent deformation of the plate to prevent damage to the upper and lower structures of the boom shock absorbing plate of heavy equipment The purpose is to provide.

In order to achieve the above object, the present invention is a plastic plate in contact with the bottom of the structure and the first iron plate attached to the bottom of the plastic plate, a rubber plate to absorb the compressive load transmitted from the first iron plate, this rubber plate at the bottom In the plate made of the second iron plate, a plurality of through holes are formed in the first iron plate and the second iron plate, respectively, and the rubber plate is compression molded with the first and second iron plates to couple the protrusions of the rubber plate to the through holes. Structure.

Such a boom shock absorbing plate of the present invention, when the rubber plate is compression molded with the first and second iron plates, and the protrusions are inserted into each of the through holes and coupled to each other, so that the rubber plate is subjected to the compressive load of the upper structure. Slip is prevented in between, and swells on both sides to absorb the impact of the superstructure. Therefore, it is possible to prevent damage to the upper and lower structures while minimizing damage to the rubber plate.

1 is a cross-sectional view showing a plate for shock absorption according to the present invention,

2 is a front view as viewed in the direction of the lower line A-A of FIG.

3 is an operating state when a load acts on the shock absorbing plate according to the present invention,

Figure 4 is a cross-sectional view showing a shock absorbing plate according to the prior art,

5 is an operating state diagram when a load is applied to the shock absorbing plate according to the prior art.

* Description of the symbols for the main parts of the drawings *

10: plastic plate 20: first iron plate

22: through hole 30: rubber plate

32: protrusion 40: second iron plate

42: through hole 50: high informational

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a shock absorbing plate according to the present invention, Figure 2 is a front view as viewed in the lower direction AA line of Figure 1, Figure 3 is an operation when a load acts on the shock absorbing plate according to the present invention State diagram.

The shock absorbing plate according to the present invention, as shown in Figure 1, the plastic plate 10 in contact with the lower end of the structure, the first iron plate 20, the first iron plate 20 attached to the lower end of the plastic plate 20 It consists of a rubber plate 30, which absorbs the compressive load transmitted from the second iron plate 40 attached to the lower end of the rubber plate (30).

That is, the plastic plate 10, the first iron plate 20, the rubber plate 30, and the second iron plate 40 are inserted and fixed in sequence from the top to the bottom with a plurality of high information bolts 50.

Referring to FIG. 2, a plurality of through holes 22 and 42 are formed in the first iron plate 20 and the second iron plate 40, respectively, and the rubber plate 30 is formed of the first and second iron plates ( As the 20,40 is compression molded, the protrusion 32 of the rubber plate is inserted into and coupled to the through holes 22 and 42.

That is, the through hole 22 of the first iron plate 20 has a wide upper portion and a narrow lower portion, and the through hole 42 of the second iron plate 40 has a narrow upper portion and a wide lower portion. As the steel plates 20 and 40 are compression molded with the rubber plate 30, the conical pillar-shaped protrusions 32 prevent the vertical, horizontal and horizontal flow in the through holes 22 and 42, respectively.

Hereinafter, the operation will be described in detail with reference to FIG. 3 of the present embodiment configured as described above.

The compressive load and impact force of the superstructure are primarily distributed in the impact force and the compressive load in the plastic plate 10, and the compressive load from the plastic plate 10 distributes the force in the first iron plate 20. After that, the compressive load from the first iron plate 20 is absorbed by the rubber plate 30, and the rubber plate 30 expands to both sides. Finally, the compressive load absorbed by the rubber plate 30 is finally dispersed in the second iron plate 40 and transferred to the substructure.

According to the constitution of the present invention, the rubber plate 30 is compression molded with the first and second iron plates 20 and 40 so that the protrusion 32 is inserted into and coupled to each of the through holes 22 and 42, thereby compressing the upper structure. When receiving, the rubber plate 30 is prevented from slipping between the first and second iron plates 20 and 40, and swells to both sides to absorb the impact of the upper structure.

According to the boom shock absorbing plate of the heavy equipment according to the present invention as described above, since the protrusion of the rubber plate is inserted into the through hole of the first and second iron plates, the rubber plate is prevented from slipping between the first and second iron plates. The damage from deformation can be minimized. In addition, it is possible to increase the durability of the plate plate by minimizing the damage of the rubber plate.

Claims (1)

The plastic plate 10 in contact with the lower end of the structure, the first iron plate 20 attached to the lower end of the plastic plate, the rubber plate 30 absorbing the compressive load transmitted from the first iron plate 20, and the rubber plate 30. In the plate consisting of the second iron plate 40 attached to the lower end, a plurality of through holes 22 and 42 are formed in the first iron plate 20 and the second iron plate 40, respectively, and the rubber plate 30 ) Is a first and second iron plate (20,40) is compression molded to the boom shock absorbing plate of the heavy equipment, characterized in that the through hole (22, 42) of the protrusion 32 of the rubber plate (30) is coupled.