Integrally-bent hydraulic oil tank

Abstract

The utility model belongs to the technical field of oil tank machining, and particularly relates to an integrally-bent hydraulic oil tank which comprises a tank body, a base is fixedly installed at the bottom of the tank body, the tank body is integrally formed and comprises a plurality of side plates connected end to end, a vertical bending line is arranged between every two adjacent side plates, and each side plate is bent towards the same side along the corresponding vertical bending line. According to the utility model, a steel plate is subjected to one-time blanking and is integrally bent and formed, so that the number of welding seams of the oil tank is reduced, the production process is simplified, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of oil tank processing, especially relates to a hydraulic oil tank of integrated bending. BACKGROUND

[0002] The hydraulic oil tank is a core component in a hydraulic system, used for storing hydraulic oil and supplying the entire hydraulic system, in the traditional metal oil tank manufacturing process, the welding technology has long dominated, which cuts and shapes multiple metal plates, and then welds them to form an overall structure of the oil tank.

[0003] Due to the welding process, the weld area is prone to defects such as pores, cracks, and slag inclusion, which can significantly reduce the strength and sealing of the oil tank, and become a potential source of leakage, and in the welding process, the metal structure of the weld area changes due to the welding heat cycle, resulting in a lower fatigue strength than the base material, and in the long-term use of the oil tank, the impact of the oil and vibration fatigue and other factors further increase the risk of leakage at the weld position.

[0004] With the increasing demand for product performance, safety, and production efficiency in industrial manufacturing, the limitations of the welding process are increasingly apparent, so a simple and reliable oil tank is needed to meet market demand. INVENTION CONTENTS

[0005] The main technical problem to be solved by the utility model is to provide a hydraulic oil tank of integrated bending, which is formed by one-time blanking and integrated bending of a steel plate, reducing the number of oil tank welds, simplifying the production process, and improving product quality.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A hydraulic oil tank of integrated bending, comprising a tank body, a base fixedly installed at the bottom of the tank body, the tank body being integrally formed and comprising a plurality of side plates connected end to end, a vertical bending line being provided between adjacent two side plates, each side plate being bent to the same side along the vertical bending line, and the two side plates at the ends being fixedly connected, an oil guide groove being provided at the top of the tank body, and an upper mounting portion being further provided at a position inside the oil guide groove at the top of the tank body.

[0008] The following is a further optimization of the utility model for the above technical scheme:

[0009] The oil guide groove is provided along the length direction of the side plate, adjacent oil guide grooves are fixedly connected, the oil guide groove comprises a first vertical plate, the first vertical plate is arranged in parallel with the side plate, a horizontal plate is provided at the lower end of the first vertical plate in the vertical direction thereof, and a second vertical plate is provided at the end of the horizontal plate away from the first vertical plate.

[0010] Further optimization: the connecting part between the first vertical plate and the horizontal plate and the connecting part between the second vertical plate and the horizontal plate are integrally connected with a first bending part and a second bending part respectively, and the first bending part and the second bending part are circular arc shapes.

[0011] Further optimization: the upper end of the first vertical plate is integrally connected with a third bending part, the end of the third bending part away from the first vertical plate is integrally connected to the upper end of the side plate, and the third bending part is a reverse U-shaped structure.

[0012] Further optimization: the upper mounting part comprises a mounting plate, the mounting plate is arranged in parallel with the base, a plurality of connecting holes are formed in the mounting plate for mounting the top cover of the oil tank, one side of the mounting plate is integrally connected with the second vertical plate, and a reinforcing plate is integrally connected to the side of the mounting plate away from the second vertical plate, the reinforcing plate is bent downward and arranged perpendicularly to the mounting plate.

[0013] Further optimization: the lower end of the side plate is integrally connected with a lower bending plate, the lower bending plate is arranged along the length direction of the side plate and perpendicularly to the side plate, adjacent two lower bending plates are fixedly connected, and the base is fixedly connected with the lower bending plate.

[0014] Further optimization: a liquid leakage hole is formed at the connecting part of adjacent oil guide grooves.

[0015] Further optimization: a plurality of round holes are formed in the side plate for mounting oil tank accessories.

[0016] The utility model discloses the above-mentioned technical scheme has the following beneficial effects:

[0017] The hydraulic oil tank of the utility model, the blanking, bending and other processes of the tank body are one-time forming, which reduces material loss, reduces the labor intensity of workers and improves work efficiency.

[0018] The hydraulic oil tank of the utility model, the tank body is integrally formed by using a whole steel plate, which greatly reduces the number of welds compared with the prior art, effectively avoids the phenomenon of leakage at the welds caused by manufacturing defects, and improves product quality.

[0019] The hydraulic oil tank of the utility model is provided with an oil guide groove and a liquid leakage hole at the top of the tank body, the oil leaking from the top of the oil tank flows back into the oil tank through the liquid leakage hole from the oil guide groove, which avoids waste of oil and also avoids pollution of the environment caused by oil leakage.

[0020] The utility model will be further described below in combination with the drawings and examples. DRAWINGS

[0021] Figure 1 It is the tank body structure perspective drawing of the utility model embodiment;

[0022] Figure 2 It is another angle of the tank body structure perspective drawing of the utility model embodiment;

[0023] Figure 3 The overall structure sectional view of the embodiment of the utility model;

[0024] Figure 4 For Figure 3 The enlarged view of A of the utility model;

[0025] Figure 5 The embodiment of the utility model box is expanded state schematic diagram.

[0026] In the figure: 1, box; 2, base; 3, upper mounting portion; 4, connecting hole; 5, side plate; 6, lower bending plate; 7, oil guide groove; 8, first vertical plate; 9, horizontal plate; 10, second vertical plate; 11, liquid leakage hole; 12, mounting plate; 13, reinforcing plate; 14, first bending portion; 15, second bending portion; 16, third bending portion. Specific embodiments

[0027] As Figures 1-3 Indicated, a one-piece bending hydraulic oil tank, comprising a box 1, the bottom of the box 1 is fixedly installed with a base 2, the top of the box 1 is provided with an upper mounting portion 3, a plurality of connecting holes 4 are formed in the upper mounting portion 3, and the connecting holes 4 are used for installing an oil tank top cover.

[0028] The box 1 is integrally formed of a metal plate material, comprising a plurality of side plates 5 connected in head-tail, a vertical bending line is arranged between the adjacent two side plates 5, each side plate 5 is bent to the same side along the vertical bending line, and the first and last two side plates 5 are fixedly connected to form a rectangular frame structure with an inner cavity, a plurality of round holes are formed in the side plate 5 for installing accessories such as an oil level gauge and a drain nozzle.

[0029] The lower end of the side plate 5 is integrally connected with a lower bending plate 6, the lower bending plate 6 is arranged along the length direction of the side plate 5, the lower bending plate 6 is bent to the inside of the box 1 along the lower edge of the side plate 5 and is perpendicular to the side plate 5, and the adjacent two lower bending plates 6 are fixedly connected to form a ring-shaped mounting surface perpendicular to the side plate 5 for mounting the base 2.

[0030] The top of the box 1 is provided with an oil guide groove 7, the oil guide groove 7 is arranged along the length direction of the side plate 5, and the oil guide groove 7 comprises a first vertical plate 8, the first vertical plate 8 is arranged in parallel with the side plate 5, the lower end of the first vertical plate 8 is provided with a horizontal plate 9 in the vertical direction thereof, one end of the horizontal plate 9 away from the first vertical plate 8 is provided with a second vertical plate 10, and the included angle between the second vertical plate 10 and the horizontal plate 9 is greater than 90°, so that the oil liquid can flow into the bottom of the oil guide groove 7.

[0031] The connecting positions between the first vertical plate 8 and the horizontal plate 9 and between the second vertical plate 10 and the horizontal plate 9 are integrally connected with a first bending part 14 and a second bending part 15 respectively, so as to connect the first vertical plate 8, the horizontal plate 9 and the second vertical plate 10 into a whole U-shaped groove. The first bending part 14 and the second bending part 15 are in a circular arc shape, which is beneficial to reduce stress and increase structural strength. Compared with a right-angle structure, the circular arc-shaped bending part is not prone to liquid accumulation, so as to avoid corrosion of oil liquid to the oil tank and prolong the service life of the oil tank.

[0032] The upper end of the first vertical plate 8 is integrally connected with a third bending part 16, and the end of the third bending part 16 away from the first vertical plate 8 is integrally connected to the upper end of the side plate 5. The third bending part 16 is in a reverse U-shaped structure, so that the first vertical plate 8 and the side plate 5 form a double-layer steel plate structure at the upper edge of the tank body 1, which increases the structural strength. At the same time, a certain gap is left between the two, which provides a deformation space for the springback of the material after bending, so as to prevent the deformation of the tank body 1.

[0033] The adjacent oil guide grooves 7 are fixedly connected to form a ring-shaped groove arranged along the inner edge of the tank body 1, which can collect the oil liquid leaked from each part. The connecting position of the adjacent oil guide grooves 7 is provided with a liquid leakage hole 11, which is in communication with the inside of the tank body 1. The oil liquid in the oil guide groove 7 flows back to the inside of the oil tank through the liquid leakage hole 11, so as to avoid the waste caused by the leakage of oil liquid.

[0034] The upper mounting part 3 is further provided at a position inside the oil guide groove 7 at the top of the tank body 1. The upper mounting part 3 includes a mounting plate 12, which is arranged in parallel with the base 2. A plurality of connecting holes 4 are formed in the mounting plate 12, which are used for mounting the oil tank top cover. One side of the mounting plate 12 is integrally connected with the second vertical plate 10, and the side of the mounting plate 12 away from the second vertical plate 10 is further integrally connected with a reinforcing plate 13. The reinforcing plate 13 is bent downward and arranged perpendicularly to the mounting plate 12, which is used to enhance the supporting force of the mounting plate 12 and prevent the deformation of the mounting plate 12 caused by the heavy pressure of the oil tank top cover.

[0035] The adjacent upper mounting parts 3 are fixedly connected to form a ring-shaped mounting surface inside the oil guide groove 7. During installation, the oil tank top cover is placed on the upper surface of the mounting plate 12, and the oil tank top cover and the mounting plate 12 are fixedly connected through the connecting holes 4.

[0036] The shape of the base 2 is adapted to the bottom surface of the tank body 1. In this embodiment, the bottom of the base 2 is provided with a plurality of supporting legs, which are fixedly connected with the ground or the mounting platform, and are used for fixedly mounting the oil tank. In addition to this embodiment, the bottom of the base 2 can also be provided with a roller, which facilitates the displacement of the oil tank.

[0037] The production method of the above-mentioned one-piece bending hydraulic oil tank is as follows:

[0038] S1, the coiled plate material is sent to a flattening device, and after flattening, it is sent to a stamping device. According to the shape of the tank body, the plate material is stamped into a tank body with a bottom, two side plates and a top plate.Figure 5 The state shown is cutting the plate;

[0039] S2, the cut steel plate is sent into a cold bending rolling machine, the lower bending plate 6 is bent inwardly with a bending angle of 90°;

[0040] S3, the vertical bending plate 8 connected with the side plate 5 is bent inwardly with a bending angle of 180°, so that the vertical bending plate 8 is parallel to the side plate 5, then the horizontal plate 9 and another vertical bending plate 8 are bent outwardly to form the oil guide groove 7;

[0041] S4, the mounting plate 12 and the reinforcing plate 13 are bent inwardly in sequence, so that the mounting plate 12 is parallel to the lower bending plate 6;

[0042] S5, the side plate 5 is bent inwardly along the vertical bending line by using a bending device, a rectangular frame structure is formed and the plate is cut off;

[0043] S6, the first and last side plates 5 are fixedly connected together, and the adjacent oil guide grooves 7 and the adjacent upper mounting parts 3 are fixedly connected;

[0044] S7, the base 2 is fixedly connected to the bottom of the oil tank.

[0045] For those skilled in the art, according to the teaching of the present application, the changes, modifications, replacements and variations made to the embodiments without departing from the principles and spirits of the present application still fall within the protection scope of the present application.

Claims

1. A hydraulic oil tank with an integral bending mechanism, comprising a tank body (1), wherein a base (2) is fixedly installed at the bottom of the tank body (1), characterized in that: The box body (1) is integrally formed, including several side plates (5) connected end to end. A vertical bending line is provided between adjacent side plates (5). Each side plate (5) is bent to the same side along the vertical bending line, and the two side plates (5) at the beginning and end are fixedly connected. An oil guide groove (7) is provided on the top of the box body (1). An upper mounting part (3) is also provided on the top of the box body (1) at the position inside the oil guide groove (7).

2. The hydraulic oil tank with an integral bending structure according to claim 1, characterized in that: The oil guide groove (7) is set along the length direction of the side plate (5), and adjacent oil guide grooves (7) are fixedly connected. The oil guide groove (7) includes a first vertical plate (8), which is arranged parallel to the side plate (5). A horizontal plate (9) is set at the lower end of the first vertical plate (8) along its vertical direction, and a second vertical plate (10) is set at the end of the horizontal plate (9) away from the first vertical plate (8).

3. The hydraulic oil tank with an integral bending structure according to claim 2, characterized in that: The first bend (14) and the second bend (15) are integrally connected at the connection points between the first vertical plate (8) and the horizontal plate (9) and between the second vertical plate (10) and the horizontal plate (9), respectively. The first bend (14) and the second bend (15) are arc-shaped.

4. The hydraulic oil tank with an integral bending structure according to claim 3, characterized in that: The upper end of the first vertical plate (8) is integrally connected to the third bend (16), and the end of the third bend (16) away from the first vertical plate (8) is integrally connected to the upper end of the side plate (5). The third bend (16) has an inverted U-shaped structure.

5. The hydraulic oil tank with an integral bending structure according to claim 4, characterized in that: The upper mounting part (3) includes a mounting plate (12), which is arranged parallel to the base (2). The mounting plate (12) has several connecting holes (4) for installing the top cover of the oil tank. One side of the mounting plate (12) is integrally connected to the second vertical plate (10). The side of the mounting plate (12) away from the second vertical plate (10) is also integrally connected to a reinforcing plate (13). The reinforcing plate (13) is bent downward and arranged perpendicular to the mounting plate (12).

6. The hydraulic oil tank with an integral bending structure according to claim 5, characterized in that: A lower bending plate (6) is integrally connected to the lower end of the side plate (5). The lower bending plate (6) is arranged along the length of the side plate (5) and is perpendicular to the side plate (5). Two adjacent lower bending plates (6) are fixedly connected. The base (2) is fixedly connected to the lower bending plate (6).

7. The hydraulic oil tank with an integral bending structure according to claim 6, characterized in that: A leakage hole (11) is provided at the connection of adjacent oil guide grooves (7).

8. The hydraulic oil tank with an integral bending structure according to claim 7, characterized in that: Several round holes are provided on the side plate (5) for installing oil tank accessories.

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