阅读说明：本技术 一种组合式油箱 (Combined oil tank ) 是由 周钦河 黄灿军 周严英 于 2021-07-06 设计创作，主要内容包括：本发明涉及一种组合式油箱,其特征在于,包括第一油箱、第二油箱和第三油箱,第一油箱和第二油箱的上部和下部均设有出油口和进油口,第三油箱的下部设有进油口,回油管与第一油箱的进油口连接,一个油管连接第一油箱的出油口与第二油箱的进油口,另一个油管连接第二油箱的出油口与第三油箱的进油口,进油管从第三油箱的上部插入第三油箱内,第一油箱的内壁上设有螺旋隔板,螺旋隔板在第一油箱的出油口下方,且自第一油箱进油口的下方沿着第一油箱的内壁螺旋向上攀升,相邻两层螺旋隔板间形成螺旋形的通道,第一油箱的进油口在最下面的两层螺旋隔板之间。本发明能减少进油与回油时对油箱中液压油的扰动,使杂质更易在油箱中沉淀,散热效果更好。(The invention relates to a combined oil tank which is characterized by comprising a first oil tank, a second oil tank and a third oil tank, wherein oil outlets and oil inlets are respectively arranged at the upper parts and the lower parts of the first oil tank and the second oil tank, an oil inlet is arranged at the lower part of the third oil tank, an oil return pipe is connected with the oil inlet of the first oil tank, one oil pipe is connected with the oil outlet of the first oil tank and the oil inlet of the second oil tank, the other oil pipe is connected with the oil outlet of the second oil tank and the oil inlet of the third oil tank, an oil inlet pipe is inserted into the third oil tank from the upper part of the third oil tank, a spiral partition plate is arranged on the inner wall of the first oil tank and below the oil outlet of the first oil tank, and the oil inlet of the first oil tank ascends spirally along the inner wall of the first oil tank from the lower part of the oil inlet of the first oil tank, a spiral channel is formed between two adjacent layers of spiral clapboards, and the oil inlet of the first oil tank is arranged between the two layers of spiral clapboards at the bottom. The invention can reduce the disturbance of oil in the oil tank when oil is fed and returned, so that impurities are easier to precipitate in the oil tank, and the heat dissipation effect is better.)

1. The utility model provides a combined oil tank, a serial communication port, including first oil tank, second oil tank and third oil tank, the upper portion and the lower part of first oil tank and second oil tank all are equipped with oil-out and oil inlet, the lower part of third oil tank is equipped with the oil inlet, it is connected with the oil inlet of first oil tank to return oil pipe, the oil-out of first oil tank and the oil inlet of second oil tank are connected to an oil pipe, the oil-out of second oil tank and the oil inlet of third oil tank are connected to another oil pipe, it inserts in the third oil tank from the upper portion of third oil tank to advance oil pipe, be equipped with the spiral baffle on the inner wall of first oil tank, the spiral baffle is in the oil-out below of first oil tank, and climb upwards along the inner wall spiral of first oil tank from the below of first oil tank oil inlet, form the helical channel between adjacent two-layer spiral baffle, the oil inlet of first oil tank is between two-layer spiral baffle of below.

2. The combined fuel tank of claim 1 wherein the first, second and third tanks each have a funnel-shaped bottom with the oil inlet of the first tank above the bottom thereof, the oil inlet of the second tank above the bottom thereof and the oil inlet of the third tank above the bottom thereof, the bottoms each having a removably attached lower end cap.

3. The modular fuel tank of claim 2 wherein said fuel line has a screen mounted therein.

Technical Field

The invention relates to a hydraulic system, in particular to a combined oil tank of the hydraulic system.

Background

During the operation of the hydraulic system, some moving parts generate particle impurities due to friction, and simultaneously generate heat to increase the oil temperature. The impurities are brought back to the oil tank by the hydraulic oil during oil return, and hopefully, the impurities are precipitated in the oil tank and are not brought into a hydraulic system again, so that the impurities are prevented from damaging components, and in addition, the temperature rise of the hydraulic oil can affect the performance of the hydraulic oil. In order to precipitate impurities, the higher the static degree of hydraulic oil, the better the precipitation effect of the hydraulic oil, the oil inlet and the oil return port of the current oil tank are in the same cavity, the oil return and the oil inlet generate great disturbance to the hydraulic oil when a hydraulic system works, and the hydraulic oil is difficult to be in a static state. For heat dissipation, the larger the heat dissipation surface area of the oil tank is, the better the heat dissipation surface area is, and the structure of the traditional cuboid oil tank also limits the heat dissipation surface area, so that the heat dissipation effect is not ideal. Therefore, in order to improve the impurity precipitation and the heat dissipation effect, a new oil tank structure is necessarily designed.

Disclosure of Invention

In order to solve the problems of impurity removal and heat dissipation of the conventional oil tank, the invention provides a combined oil tank to improve the impurity precipitation effect and the heat dissipation effect.

In order to achieve the purpose, the combined oil tank provided by the invention is characterized by comprising a first oil tank, a second oil tank and a third oil tank, wherein the upper parts and the lower parts of the first oil tank and the second oil tank are respectively provided with an oil outlet and an oil inlet, the lower part of the third oil tank is provided with an oil inlet, an oil return pipe is connected with the oil inlet of the first oil tank, one oil pipe is connected with the oil outlet of the first oil tank and the oil inlet of the second oil tank, the other oil pipe is connected with the oil outlet of the second oil tank and the oil inlet of the third oil tank, the oil inlet pipe is inserted into the third oil tank from the upper part of the third oil tank, the inner wall of the first oil tank is provided with a spiral partition plate, and the spiral partition plate is arranged below the oil outlet of the first oil tank, and the oil inlet of the first oil tank ascends spirally along the inner wall of the first oil tank from the lower part of the oil inlet of the first oil tank, a spiral channel is formed between two adjacent layers of spiral clapboards, and the oil inlet of the first oil tank is arranged between the two layers of spiral clapboards at the bottom.

The oil tank with the independent cavities is formed by connecting a plurality of single oil tanks with the independent cavities in series, disturbance of oil in the oil tank during oil inlet and oil return is reduced, impact of oil return of a hydraulic system and oil inlet on the hydraulic oil in the oil tank is reduced, the spiral partition plate is additionally arranged in the first oil tank, so that the oil return forms a spiral channel, impact of the oil return on the hydraulic oil in the oil tank is further reduced, impurities are more easily precipitated in the oil tank, meanwhile, the heat dissipation surface area of the hydraulic oil is increased by the oil tanks, the heat dissipation effect is better, and the purposes of efficiently removing the impurities and dissipating heat are achieved.

Drawings

Fig. 1 is a schematic structural diagram of a combined fuel tank of the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

Detailed Description

Referring to fig. 1, the combined fuel tank includes a first fuel tank 1, a second fuel tank 2, and a third fuel tank 3. The upper part and the lower part of the first oil tank 1 are provided with an oil outlet 12 and an oil inlet 11, the upper part and the lower part of the second oil tank 2 are provided with an oil outlet 22 and an oil inlet 21, and the lower part of the third oil tank 3 is provided with an oil inlet 31. The first, second and third oil tanks 1, 2 and 3 each have a funnel-shaped bottom, the oil inlet 11 of the first oil tank 1 being above its bottom 13, the oil inlet 21 of the second oil tank 2 being above its bottom 23, and the oil inlet 31 of the third oil tank 3 being above its bottom 33. The bottom 13 of the first oil tank 1, the bottom 23 of the second oil tank 2 and the bottom 33 of the third oil tank 3 are all provided with a lower end cover 8, and the lower end cover 8 is detachably connected with the bottoms of the oil tanks. The impurities in the first tank 1 are concentrated in the bottom 13 thereof, the impurities in the second tank 2 are concentrated in the bottom 23 thereof, the impurities in the third tank 3 are concentrated in the bottom 33 thereof, and the impurities accumulated in the tanks can be removed by opening the lower end cap 8. The oil return pipe 4 is connected with an oil inlet 11 of the first oil tank 1. One oil pipe 5 connects the oil outlet 12 of the first oil tank 1 and the oil inlet 21 of the second oil tank 2, and the other oil pipe 5 connects the oil outlet 22 of the second oil tank 2 and the oil inlet 31 of the third oil tank 3. And a filter screen 6 is arranged in the oil pipe 5, and the filter screen 6 is used for further filtering impurities in the hydraulic oil. An oil inlet pipe 7 is inserted into the third oil tank 3 from the upper portion of the third oil tank 3, and oil in the third oil tank 3 is introduced into the hydraulic system through the oil inlet pipe 7.

The spiral partition plate 9 is arranged on the inner wall of the first oil tank 1, the spiral partition plate 9 is arranged below an oil outlet 12 of the first oil tank 1 and ascends along the spiral direction of the inner wall of the first oil tank 1 from the lower side of the oil inlet 11, a spiral channel is formed between every two adjacent layers of spiral partition plates 9, and the oil inlet 11 is arranged between the two lowest layers of spiral partition plates 9. The return oil of the hydraulic system sequentially enters a spiral channel formed by the spiral partition plate 9 through the oil return pipe 4 and the oil inlet 11 of the first oil tank 1, flows along the spiral channel, and enters the first oil tank 1 from the uppermost outlet of the spiral channel. The return oil is buffered by the spiral partition plate 9, so that the impact of the return oil on the hydraulic oil in the first oil tank 1 is reduced. Hydraulic oil enters the second oil tank 2 from the first oil tank 1 through an oil pipe 5, then enters the third oil tank 3 through another oil pipe 5, and finally returns to the hydraulic system through an oil inlet pipe 7. The hydraulic oil returns to the hydraulic system after multistage sedimentation, filtration and heat dissipation of the combined oil tank.

The oil tank with the independent cavities is formed by connecting a plurality of single oil tanks with the independent cavities in series, disturbance of oil in the oil tank during oil inlet and oil return is reduced, impact of oil return of a hydraulic system and oil inlet on the hydraulic oil in the oil tank is reduced, the spiral partition plate is additionally arranged in the first oil tank, so that the oil return forms a spiral channel, impact of the oil return on the hydraulic oil in the oil tank is further reduced, impurities are more easily precipitated in the oil tank, meanwhile, the heat dissipation surface area of the hydraulic oil is increased by the oil tanks, the heat dissipation effect is better, and the purposes of efficiently removing the impurities and dissipating heat are achieved. The invention has simple structure, convenient use, good impurity removal and heat dissipation effects, convenient disassembly and cleaning of each part in the device, repeated use and cost saving.