Steering heat dissipation system adopting integrated flow divider valve

Abstract

The utility model provides a steering heat dissipation system adopting an integrated diverter valve, which comprises a gear pump, a constant flow pump, a front axle steering oil cylinder, a steering oil tank, a radiator, a steering gear and the diverter valve, a heat dissipation oil filter is connected with the gear pump through a pipeline, the gear pump is connected with the diverter valve through a gear pump oil outlet pipe, and the diverter valve is connected with the radiator through a pipeline. The diverter valve is connected with the steering oil tank through a steering gear oil outlet pipe, the steering oil tank is connected with the constant flow pump through a pipeline, the constant flow pump is connected with the steering gear through a pipeline, the steering gear is connected with a front axle steering oil pipe through a pipeline and further connected with the diverter valve through a pipeline, and the diverter valve is connected with the heat dissipation oil tank through a pre-return oil pipe. An original steering gear oil outlet pipe and an original gear pump oil outlet pipe are integrated on one diverter valve, oil pipes are concentrated, the whole machine is attractive and harmonious in arrangement and convenient to assemble and maintain, the number of connectors is reduced, and production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field especially relates to a steering heat dissipation system of integrated type shunt valve. BACKGROUND

[0002] With the development of intelligent agriculture and more and more development of mechanical functions, higher requirements are put forward for the overall layout of the tractor: while ensuring the perfection of basic functions, the controllability and comfort should coexist. This requires higher design requirements for the product, and the hydraulic system plays a very important part in it. The positions of power components, execution components and auxiliary components must be reasonable to achieve the system function and make it beautiful and easy to assemble. Figures 4-7 The hydraulic oil pipe layout principle diagram of the existing tractor is shown in the figure. The oil pipe is divided into steering and heat dissipation parts. The steering part is connected to the steering oil tank by the constant flow pump, and the filtered hydraulic oil flows into the steering gear through the filter. Then the steering gear distributes the hydraulic oil to the front axle cylinder to drive the tire steering. The heat dissipation part is connected to the gearbox by the gear pump, and the filtered hydraulic oil flows into the radiator. After circulating in the radiator, the hydraulic oil returns to the gearbox. The structure has the following disadvantages:

[0003] 1. The hydraulic steering system and the heat dissipation system are separated, the oil pipe is relatively messy, which affects the appearance of the whole machine, and it is inconvenient to assemble and disassemble;

[0004] 2. There are relatively more components, the pipeline arrangement is complicated, which increases the oil leakage points and failure rate;

[0005] 3. The integration degree is low, which leads to large space occupation and affects the arrangement of other parts of the whole machine;

[0006] 4. The cost is high, the economy is poor, and the maintenance cost is high.

[0007] Therefore, it is necessary to develop a reasonable integrated oil pipe layout. CONTENT OF THE UTILITY MODEL

[0008] The utility model aims at providing a steering heat dissipation system of integrated type shunt valve to overcome the above problems or at least partially solve the above problems.

[0009] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0010] The utility model provides a kind of steering heat dissipation system using integrated shunt valve, including heat dissipation oil tank and heat dissipation oil filter, the heat dissipation oil filter is connected on heat dissipation oil tank, further including gear pump, constant flow pump, front axle steering oil cylinder, steering oil tank, radiator, steering gear and shunt valve, the heat dissipation oil filter is connected with gear pump by pipeline, gear pump is connected with shunt valve by gear pump oil outlet pipe, shunt valve is connected with radiator by pipeline, and one-way flow is carried out between shunt valve and radiator by pipeline, shunt valve is connected with steering oil tank by steering gear oil outlet pipe, the steering oil tank is connected with constant flow pump by pipeline, constant flow pump is connected with steering gear by pipeline, steering gear is connected with front axle steering oil pipe by pipeline, and one-way flow is carried out between steering gear and front axle steering oil pipe by pipeline, steering gear is also connected with shunt valve by pipeline, shunt valve is connected with heat dissipation oil tank by pre-oil return pipe.

[0011] As a further scheme of the utility model, the right side of the shunt valve is respectively provided with a heat dissipation oil inlet and a steering oil outlet, the upper side is provided with a heat dissipation oil outlet, a heat dissipation oil return and a steering oil return, and the lower side is provided with a pre-oil return.

[0012] The utility model provides a kind of steering heat dissipation system using integrated shunt valve, and beneficial effect lies in:

[0013] 1, heat dissipation oil filter is changed from vertical to horizontal, prevent tractor in the process of operation to occur and so on grass jam phenomenon, to prevent high temperature combustion situation, simultaneously banishes a part of oil pipe, reduces oil leakage point, is convenient for maintenance, saves three guarantees time;

[0014] 2, the original steering gear oil outlet pipe and gear pump oil outlet pipe are integrated on a shunt valve, oil pipe is relatively concentrated, whole machine arrangement is beautiful and harmonious, assembly maintenance is convenient, reduces the number of joints, reduces production cost;

[0015] 3, a pre-oil return pipe is arranged on shunt valve, prevents the radiator failure caused by too high pressure of hydraulic system, reduces maintenance cost. DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creating creative labor for ordinary skilled in the art.

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] Figure 2 It is the side view of shunt valve in the utility model.

[0019] Figure 3 It is the sectional view of the shunt valve in the utility model.

[0020] Figure 4 It is the working principle diagram of the existing tractor hydraulic steering system.

[0021] Figure 5 It is the working principle diagram of the existing tractor hydraulic heat dissipation system.

[0022] Figure 6 It is the result schematic diagram of the existing tractor hydraulic steering system.

[0023] Figure 7 It is the structure schematic diagram of the existing tractor hydraulic heat dissipation system.

[0024] In the drawing: 1, heat dissipation oil tank; 2, heat dissipation oil filter; 3, gear pump; 4, constant flow pump; 5, front axle steering oil cylinder; 6, steering oil tank; 7, radiator; 8, steering gear; 9, shunt valve; 10, pre-oil return pipe; 11, gear pump oil outlet pipe; 12, steering gear oil outlet pipe; 91, heat dissipation oil inlet; 92, steering oil outlet; 93, heat dissipation oil outlet; 94, heat dissipation oil return; 95, steering oil return; 96, pre-oil return. DETAILED DESCRIPTION

[0025] Exemplary embodiments of the present disclosure will be described below in greater detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0026] Referring to Figures 1-3 The utility model discloses an adopt integrated shunt valve's steering heat dissipation system, including heat dissipation oil tank 1 and heat dissipation oil filter 2, heat dissipation oil filter 2 is connected on heat dissipation oil tank 1, still including gear pump 3, constant flow pump 4, front axle steering oil cylinder 5, steering oil tank 6, radiator 7, steering gear 8 and shunt valve 9, heat dissipation oil filter 2 is connected with gear pump 3 through pipeline, gear pump 3 is connected with shunt valve 9 through gear pump oil outlet pipe 11, shunt valve 9 is connected with radiator 7 through pipeline, and the one-way flow is carried out through pipeline between shunt valve 9 and radiator 7, shunt valve 9 is connected with steering oil tank 6 through steering gear oil outlet pipe 12, steering oil tank 6 is connected with constant flow pump 4 through pipeline, constant flow pump 4 is connected with steering gear 8 through pipeline, steering gear 8 is connected with front axle steering oil pipe through pipeline, and the one-way flow is carried out through pipeline between steering gear 8 and front axle steering oil pipe, steering gear 8 is also connected with shunt valve 9 through pipeline, shunt valve 9 is connected with heat dissipation oil tank 1 through pre-oil return pipe 10.

[0027] The right side of the flow divider valve 9 is provided with a heat dissipation oil inlet 91 and a steering oil outlet 92 respectively, the gear pump 3 is connected with the heat dissipation oil inlet 91 through the oil outlet, the gear pump 3 and the flow divider valve 9 are connected together, the upper side is provided with a heat dissipation oil outlet 93, a heat dissipation oil return port 94 and a steering oil return port 95, the heat radiator 7 and the flow divider valve 9 are connected together through pipelines connected with the heat dissipation oil outlet 93 and the heat dissipation oil return port 94 respectively, and the steering gear 8 and the flow divider valve 9 are connected together through the pipeline connected with the steering oil return port 95, the lower side is provided with a pre-oil return port 96, the pre-oil return pipe 10 is connected with the pre-oil return port 96, and the pre-oil return pipe 10 and the flow divider valve 9 are connected together.

[0028] In the use process of the utility model, the heat dissipation system is connected together by the horizontal heat dissipation oil filter 2 from the gearbox body oil suction, the oil pipe into the gear pump 3, the gear pump 3 pumps out the filtered hydraulic oil, and the hydraulic oil is divided into two parts, one part flows into the pre-oil return pipe 10 into the gearbox through the small hole, and the other part enters the radiator 7 through the oil pipe and circulates heat dissipation and then enters the gearbox through the pre-oil return pipe 10. The steering system is connected together by the constant flow pump 4 from the steering oil tank 6, the hydraulic oil is pumped into the steering gear 8, and then the steering gear 8 flows into the front axle steering oil cylinder 5 to drive the tire steering. Because the steering oil cylinder is differential connection, the hydraulic oil comes out and returns to the flow divider valve 9 through the steering gear 8, and then returns to the hydraulic oil tank through the flow divider valve 9. Two systems are combined together by the flow divider valve 9.

[0029] The above is only the embodiment of the application and is not used to limit the application. The application can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application should be included in the claim range of the application.

Claims

1. A steering heat dissipation system with an integrated flow divider, comprising a heat dissipation oil tank (1) and a heat dissipation oil filter (2), the heat dissipation oil filter (2) being connected to the heat dissipation oil tank (1), characterized in that, Gear pump (3), constant flow pump (4), front axle steering oil cylinder (5), steering oil tank (6), radiator (7), steering gear (8) and flow divider valve (9) are also included, the radiator oil filter (2) is connected with the gear pump (3) through pipeline, the gear pump (3) is connected with the flow divider valve (9) through gear pump oil outlet pipe (11), the flow divider valve (9) is connected with the radiator (7) through pipeline, and one-way flow is carried out between the flow divider valve (9) and the radiator (7) through pipeline, the flow divider valve (9) is connected with the steering oil tank (6) through steering gear oil outlet pipe (12), the steering oil tank (6) is connected with the constant flow pump (4) through pipeline, the constant flow pump (4) is connected with the steering gear (8) through pipeline, the steering gear (8) is connected with the front axle steering oil pipe through pipeline, and one-way flow is carried out between the steering gear (8) and the front axle steering oil pipe through pipeline, the steering gear (8) is also connected with the flow divider valve (9) through pipeline, and the flow divider valve (9) is connected with the radiator oil tank (1) through pre-oil return pipe (10).

2. The steering heat dissipation system with integrated flow divider according to claim 1, wherein, The right side of the flow divider valve (9) is respectively provided with a radiator oil inlet (91) and a steering oil outlet (92), the upper side is provided with a radiator oil outlet (93), a radiator oil return (94) and a steering oil return (95), and the lower side is provided with a pre-oil return (96).

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