Structure convenient for hanging agricultural implement outside cab

Abstract

The utility model provides a structure convenient for hanging agricultural implements outside a cab, which comprises a three-point suspension mechanism, a multi-way valve, a lifting oil cylinder and a lifting oil tank, the lifting oil tank and the three-point suspension mechanism are both mounted on a main frame of a tractor, and the lifting oil cylinder is rotatably connected between the three-point suspension mechanism and the main frame of the tractor. A multi-way valve is arranged above the lifting oil tank, the multi-way valve is connected with the lifting oil tank through a pipeline, the multi-way valve is further connected with a lifting oil cylinder through a pipeline, the outer end of a valve element on the multi-way valve is connected with a tail control arm, the tail control arm is rotationally connected to a support, and the support is fixedly connected to the lifting oil tank. And the bottom of the tail operating arm is also fixedly connected with a lifting operating rod. When a user independently hitches an agricultural implement, the tractor only needs to be driven to a proper position, then the tail operating arm is used for controlling the multi-way valve, the stretching and retracting of the lifting oil cylinder are further controlled, and hitch of the agricultural implement is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field especially relates to a structure of outside hanging of agricultural implement convenient for cab. BACKGROUND

[0002] The vigorous development of wisdom agriculture makes many front technologies gradually applied to agricultural machinery, such as electro-hydraulic suspension technology, power reversing technology etc. But even if these technologies develop vigorously, it is unavoidable that tractor hanging agricultural implement uses three-point structure. Figure 2 For the existing hydraulic control three-point suspension mechanism on some tractor, the structure pumps the filtered hydraulic oil into the multi-way valve from the lifter by the gear pump, controls the extension and retraction of the lifting oil cylinder by the multi-way valve, then drives the lifting of three-point suspension mechanism, and constitutes a complete hydraulic lifting system. The structure has the following deficiencies:

[0003] 1. The lifting operation can only be in the cab, if a single person drives the operation, needs to go up and down from the cab when hanging the agricultural implement, which is very inconvenient and unsafe;

[0004] 2. There is no advantage compared with the competitive product, which affects sales;

[0005] Therefore, it is necessary to develop a structure of outside hanging of agricultural implement convenient for cab. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing a structure of outside hanging of agricultural implement convenient for cab to overcome the above problems or at least partially solve the above problems.

[0007] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0008] The utility model provides a structure of outside hanging of agricultural implement convenient for cab, including three-point suspension mechanism, multi-way valve, lifting oil cylinder and lifting oil tank, the lifting oil tank and three-point suspension mechanism are all installed on the tractor mainframe, the lifting oil cylinder is rotatably connected between three-point suspension mechanism and the tractor mainframe, the top of lifting oil tank is provided with multi-way valve, the multi-way valve is connected with lifting oil tank through pipeline, the multi-way valve is also connected with lifting oil cylinder through pipeline, the valve core outer end on multi-way valve is connected with tail operating arm, the tail operating arm is rotatably connected on support, the support is fixedly connected on lifting oil tank, the bottom of tail operating arm is also fixedly connected with lifting operating rod, the oil outlet end of lifting oil tank is connected with oil suction filter through pipeline, and oil suction filter is connected with gear pump through pipeline, the gear pump is connected with multi-way valve through pipeline.

[0009] As a further scheme of the utility model, the lifting oil cylinder is provided with two groups, and the two groups of lifting oil cylinders are symmetrically connected between the three-point suspension mechanism and the tractor main frame.

[0010] As a further scheme of the utility model, the tail control arm section is T-shaped.

[0011] The utility model provides a structure of outside hanging of agricultural implement for cab, and the beneficial effect lies in:

[0012] 1, a tail control arm is welded on the original control mechanism, and the user only needs to open the tractor to the appropriate position when hanging the agricultural implement alone, and then controls the multi-way valve by the tail control arm, and then controls the extension and retraction of the lifting oil cylinder, so that the hanging of the agricultural implement is realized.

[0013] 2, compared with the previous improvement, the operation is more convenient, and certain convenience is brought to product sales. DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed to be used 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 for the ordinary skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0015] Figure 1 It is the structural schematic diagram of the utility model.

[0016] Figure 2 It is the structural schematic diagram of the existing tractor hydraulic control three-point suspension mechanism.

[0017] In the drawing: 1, three-point suspension mechanism; 2, multi-way valve; 3, tail control arm; 4, lifting control rod; 5, gear pump; 6, oil suction filter; 7, lifting oil cylinder; 8, lifting oil tank. CONCRETE IMPLEMENTATION

[0018] The exemplary embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Although the 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 described herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0019] Referring to Figure 1The utility model discloses an outside structure of convenient to drive room and hang the agricultural implement, including three point suspension mechanism 1, multiway valve 2, lifting oil cylinder 7 and lifting oil tank 8, and lifting oil tank 8 and three point suspension mechanism 1 are all installed on tractor main frame, and lifting oil cylinder 7 is rotatably connected between three point suspension mechanism 1 and tractor main frame, and the top of lifting oil tank 8 is provided with multiway valve 2, and multiway valve 2 is connected with lifting oil tank 8 through pipeline, and multiway valve 2 is also connected with lifting oil cylinder 7 through pipeline, and the outer end of valve core on multiway valve 2 is connected with tail control arm 3, and tail control arm 3 is rotatably connected on support, and support is fixedly connected on lifting oil tank 8, and the bottom of tail control arm 3 is also fixedly connected with lifting control rod 4, and the oil outlet end of lifting oil tank 8 is connected with oil suction filter 6 through pipeline, and oil suction filter 6 is connected with gear pump 5 through pipeline, and gear pump 5 is connected with multiway valve 2 through pipeline.

[0020] Lifting oil cylinder 7 is provided with two groups, and the two groups of lifting oil cylinder 7 are symmetrically connected between three point suspension mechanism 1 and tractor main frame, and the design of two groups of lifting oil cylinder 7 can drive three point suspension mechanism 1 to stably turn up or turn down.

[0021] Tail control arm 3 cross section is T-shaped, conveniently tail control arm 3 is rotatably connected with support, and conveniently holds and rotates tail control arm 3.

[0022] The utility model in the using process, engine passes spline and gives torque to gear pump 5, makes gear pump 5 produce rotation. Energy form transformation will occur in gear pump 5, and the mechanical energy of engine transmission will be converted into hydraulic energy, and is exported in the form of flow and pressure. Through pipeline, the hydraulic oil that gear pump 5 pumps from lifting oil tank 8 will flow to multiway valve 2, and the hydraulic oil of multiway valve 2 is transmitted into lifting oil cylinder 7, and lifting oil cylinder 7 drives three point suspension mechanism 1 to realize the hanging of agricultural implement. The pipeline connection mode is consistent before and after change. The main improvement is that tail control arm 3 is added on operating mechanism, and it is convenient for user to independently hang agricultural implement.

[0023] When needing user to independently hang agricultural implement, holding tail control arm 3 and rotating can drive the valve core on multiway valve 2 to stretch and retract, thereby driving lifting oil cylinder 7 to switch between stretching and retracting, and further driving three point suspension mechanism 1 to turn down or turn up, which is convenient for user to independently hang agricultural implement.

[0024] The above is only the embodiment of the application and does not limit the application. The application can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the scope of claims of the application.

Claims

1. A structure for facilitating the hitching of an agricultural implement to a cab, comprising a three-point linkage mechanism (1), a multi-way valve (2), a lifting oil cylinder (7) and a lifting oil tank (8), characterized in that, The lifting oil tank (8) and the three-point suspension mechanism (1) are mounted on the tractor mainframe, the lifting oil cylinder (7) is rotatably connected between the three-point suspension mechanism (1) and the tractor mainframe, the upper portion of the lifting oil tank (8) is provided with a multi-way valve (2), the multi-way valve (2) is connected with the lifting oil tank (8) through a pipeline, the multi-way valve (2) is also connected with the lifting oil cylinder (7) through a pipeline, the outer end of the valve core of the multi-way valve (2) is connected with a tail operating arm (3), the tail operating arm (3) is rotatably connected on a support, the support is fixedly connected on the lifting oil tank (8), the bottom of the tail operating arm (3) is also fixedly connected with a lifting operating rod (4), the oil outlet end of the lifting oil tank (8) is connected with an oil suction filter (6) through a pipeline, the oil suction filter (6) is connected with a gear pump (5) through a pipeline, and the gear pump (5) is connected with the multi-way valve (2) through a pipeline.

2. The structure for facilitating hitching of an agricultural implement to a driver's cabin outside according to claim 1, characterized by The lifting oil cylinder (7) is provided with two groups, and the two groups of lifting oil cylinders (7) are symmetrically connected between the three-point suspension mechanism (1) and the tractor mainframe.

3. The structure for facilitating hitching of an agricultural implement to a driver's cabin outside according to claim 1, characterized in that, The tail operating arm (3) is T-shaped in cross section.

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