CN201350836Y

CN201350836Y - Improved structure for oil tank of engineering vehicle

Info

Publication number: CN201350836Y
Application number: CNU2008201462775U
Authority: CN
Inventors: 黄洪祥; 郭涛; 王攀; 黄松
Original assignee: Xiamen Xiagong Small Machinery Co Ltd
Current assignee: Xiamen Xiagong Small Machinery Co Ltd
Priority date: 2008-11-07
Filing date: 2008-11-07
Publication date: 2009-11-25
Anticipated expiration: 2018-11-07

Abstract

The utility model discloses an improved structure for the oil tank of an engineering vehicle, which mainly consists of an external closing plate, a middle closing plate, an internal closing plate and a bottom closing plate. A small tank body isolated from an oil tank cavity body is arranged on a lower part where the oil tank cavity body is combined with a bottom plate. The small tank body is added on the lower part of the oil tank cavity body, and a welding line is separated from the internal surface of a work oil tank by the small tank body; and therefore, the improved structure avoids the influence which is caused by oil by the oxide film impurity produced on the internal surface of the oil tank due to high temperature, removes the influence which is caused by fuel oil quality by oxide film pieces in a fuel tank, and reduces the abrasion of the hydraulic elements in a hydraulic oil tank, thereby prolonging the service time of the elements. Secondly, the side plate arranged in the oil tank is made into an integral plate, thereby reducing the welding lines and enhancing the bearing capacity of the improved structure. The improved structure has the advantages of special structure and simple welding procedure, and is capable of really reducing the influence caused by the fuel and the hydraulic oil by the welding oxide films, and improving the bearing capacity of the integral structure of the oil tank.

Description

The improvement structure of engineering truck fuel tank

Technical field

The utility model relates to a kind of engineering truck, particularly relates to a kind of improvement structure of engineering truck fuel tank.

Background technology

The loader fuel tank of commonly using (as shown in Figure 1) mainly is made up of outer shrouding 1 ', middle shrouding 2 ', inner sealed board 3 ' and bottom sealing plate 4 '.Described outer shrouding 1 ' rectangular bending, one square edge and inner sealed board 3 ' welding, form the flute profile cavity, shrouding 2 ' is bending in described, its dual-side is welded on outer shrouding 1 ' and the inner sealed board 3 ' inside face, the outside face of bottom sealing plate 4 ' and the welding of the bottom of middle shrouding 2 ' form an osed top fuel tank cavity.There is following defective in this fuel tank of commonly using:

1, because the overall welding process of vehicle frame is each parts of fuel tank, comprise outer shrouding 1 ', middle shrouding 2 ', inner sealed board 3 ' and bottom sealing plate 4 ', behind the first welding assembly, form fuel tank, carry out acid washing phosphorization then, and then be welded to form vehicle frame with base plate, underframe assembly unit.When fuel tank is assembled welding in the vehicle frame general assembly, when base plate and fuel tank assembly unit welding, welding meeting at base plate and fuel tank junction F produces high temperature at fuel tank inner sealed board 2 ', impel the protective cover of tank internal surface of pickling destroyed, and then the generation fire coat, form impurity, if this fuel tank uses as fuel tank, then above-mentioned impurity can produce wearing and tearing to driving engine, shortens the service life of driving engine; If this fuel tank uses as hydraulic reservoir, then above-mentioned impurity infiltrate voltage device, the service life that easily hydraulic component is produced the same shortening of wearing and tearing hydraulic component.

2, the fuel tank inboard is welded by the two boards assembly unit, a non-integral slab, this structure makes header board R2 be welded to form one with fuel tank, handle the at first bad assurance in position of weld of header board R2 like this, and header board R2 present position is the junction of underframe and fuel tank, stressed complexity, unnecessary weld seam can have a negative impact to structure.

The utility model content

The purpose of this utility model is to provide a kind of improvement structure of avoiding high temperature to the engineering truck fuel tank that the pickling protective cover destroys, structural strength is high of tank internal surface.

For achieving the above object, technical solution of the present utility model is:

The utility model is a kind of improvement structure of engineering truck fuel tank, it mainly is made up of outer shrouding, middle shrouding, inner sealed board and bottom sealing plate, the rectangular bending of described outer shrouding, one square edge and inner sealed board welding, form the flute profile cavity, described middle shrouding is bending, and its dual-side is welded on respectively on outer shrouding and the inner sealed board inside face, the outside face of described bottom sealing plate and the welding of the bottom of middle shrouding form an osed top fuel tank cavity; It is characterized in that: be provided with a small box in the junction of fuel tank cavity and base plate, this small box is isolated the weld seam and the fuel tank cavity of fuel tank cavity and base plate junction.

Described small box is made up of a part, division board, the top sealing plate of inner sealed board; The part of described inner sealed board constitutes the bottom surface of small box, is the side that the bending division board constitutes small box, and described top sealing plate constitutes the end face of small box, forms a fitfull gengon;

Described inner sealed board is an integral member.

After adopting such scheme, because the utility model has added a small box in the bottom of fuel tank cavity, this small box separates the inside face of weld seam and operating oil tank, thereby the fire coat impurity that this weld seam is produced is closed in the small box, in fuel tank, eliminated of the influence of fire coat fragment to fuel oil quality, in hydraulic reservoir, reduce the wearing and tearing of Hydraulic Elements, prolong component life.Secondly, the utility model reduces weld seam with the fuel tank interior plate plate that is formed in one, and strengthens structure stress.This Oiltank structure is special, and welding process is simple, and it is stressed to the influence and the raising fuel tank integral structure of fuel oil and hydraulic oil really to reduce the welding fire coat.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Description of drawings

Figure 1A, Figure 1B are axonometric drawing and the front views of commonly using the loader fuel tank;

Fig. 2 A is the three-dimensional exploded view of the utility model hydraulic reservoir;

Fig. 2 B is the axonometric drawing of the utility model hydraulic reservoir;

Fig. 2 C is the axonometric drawing after the utility model hydraulic reservoir and the base plate welding assembly unit

Fig. 2 D is the front view of the utility model hydraulic reservoir;

Fig. 2 E is the cutaway view of Fig. 2 D along the A-A line;

Fig. 2 F is the axonometric drawing of the utility model hydraulic reservoir inner sealed board;

Fig. 3 A is the axonometric drawing of the utility model fuel tank

The specific embodiment

Shown in Fig. 2 A, Fig. 2 B, it is a kind of improvement structure of engineering truck hydraulic reservoir, and described hydraulic reservoir 10 mainly is made up of outer shrouding 1, middle shrouding 2, inner sealed board 3 and bottom sealing plate 4.Described outer shrouding 1 rectangular bending, one square edge and inner sealed board 3 welding form the flute profile cavity.Shrouding 2 is bending in described, and its dual-side is welded on respectively on outer shrouding 1 and inner sealed board 3 inside faces, and the welding of the bottom of the outside face of described bottom sealing plate 4 and middle shrouding 3 forms an osed top fuel tank cavity 5; Weld seam F in inner sealed board 3 and base plate 20 junctions is provided with a small box 6 (shown in Fig. 2 D), and this small box is isolated inner sealed board 3 and the weld seam F and the fuel tank cavity 5 of base plate 20 junctions.

Described small box 6 (with reference to figure 2B, Fig. 2 D, Fig. 2 E) is made up of a part 61, the part 62 of bottom sealing plate, division board 63, the top sealing plate 64 of inner sealed board.The part 61 of described inner sealed board constitutes the bottom surface of small box, the part 62 of sweeping bottom sealing plate and sweeping division board 63 constitute four sides of small box 6, described top sealing plate 64 constitutes the end face of small box 6, four harden and form a fitfull cuboid after closing, and promptly small box 6;

Used hydraulic reservoir 10 inner sealed boards 3 (shown in Fig. 2 F) of the utility model are integral member, and the integral slab structure stress is better, and inner sealed board 3 has the bending of two places, the bending of A place is to invagination, and the bending of B place is outwards rolled over, and this two places bending is just in time clamped the underframe upper plate, therefore assembly unit is simple, and welding easily.

Because inner sealed board 3 can produce high temperature with the attachment weld F (shown in Fig. 2 C, Fig. 2 D) of base plate 20 when welding, fuel tank 10 in-to-in small box 6 separate the inside face of weld seam F and operating oil tank, thereby the fire coat impurity that this weld seam is produced is enclosed in the small box 6, avoid above-mentioned impurity and hydraulic reservoir in-to-in fluid mixed in together, improve the purity of the inner fluid of hydraulic reservoir, prolong the service life of hydraulic component.

Fig. 3 A is the constructional drawing of the utility model fuel tank 10A, and hydraulic reservoir 10 structures shown in its structure and Fig. 2 B are roughly the same, does not state enduring at this.The used fuel tank 10A inner sealed board 3A of the utility model is an integral member.

Emphasis of the present invention just is: set up a small box at fuel tank internal, this small box can separate the inside face of weld seam and operating oil tank.

The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims

1, a kind of improvement structure of engineering truck fuel tank, it mainly is made up of outer shrouding, middle shrouding, inner sealed board and bottom sealing plate, the rectangular bending of described outer shrouding, one square edge and inner sealed board welding, form the flute profile cavity, described middle shrouding is bending, and its dual-side is welded on respectively on outer shrouding and the inner sealed board inside face, the outside face of described bottom sealing plate and the welding of the bottom of middle shrouding form an osed top fuel tank cavity; It is characterized in that: be provided with a small box in the junction of fuel tank cavity and base plate, this small box is isolated the weld seam and the fuel tank cavity of fuel tank cavity and base plate junction.

2, the improvement structure of engineering truck fuel tank according to claim 1 is characterized in that: described small box is made up of a part, bottom sealing plate, division board, the top sealing plate of inner sealed board; The part of described inner sealed board constitutes the bottom surface of small box, and sweeping bottom sealing plate and division board constitute four sides of small box, and described top sealing plate constitutes the end face of small box, forms a fitfull gengon.

3, the improvement structure of engineering truck fuel tank according to claim 1 is characterized in that: described inner sealed board is an integral member.