Scribing rod control hydraulic system and seeder

Abstract

The utility model relates to a lineation rod control hydraulic system and a seeding machine, the hydraulic system comprises a main control valve and at least one hydraulic control unit, each hydraulic control unit comprises a reversing valve, a locking piece and an oil cylinder, an oil outlet on the main control valve is communicated with one end of an oil supply pipeline, and the other end of the oil supply pipeline is communicated with an oil pump. An oil return opening in the main control valve is communicated with one end of the oil return pipeline; the reversing valve is provided with a first connector and a second connector which are communicated or disconnected, the first connector is communicated with the other end of the oil supply pipeline, and the second connector is communicated with a rodless cavity of the oil cylinder of the first pipeline. A rod cavity of the oil cylinder, the locking piece and the other end of the oil return pipeline are sequentially communicated through a pipeline. The beneficial effects of the utility model are that the structure is simple, the design is reasonable, the structure is simplified, and remote operation is realized through electric appliance control; meanwhile, the intensity of operators is greatly reduced, and a great promotion effect on vigorous popularization of the multifunctional seeding machine is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sowing machine technical field, concretely relates to a line marking rod control hydraulic system and sowing machine. BACKGROUND

[0002] With the wide application of sowing machine, the technical platform of sowing machine is gradually raised, not only the accuracy of sowing is required, and the auxiliary function of sowing is also increasingly rich, for example, fan, down pressure, sowing amount, line marking machine, supporting wheel, side wing folding etc. CONTENT

[0003] The utility model provides a line marking rod control hydraulic system and sowing machine, aims at solving the problem in prior art.

[0004] The utility model solves the technical scheme of the above-mentioned technical problem as follows:

[0005] A line marking rod control hydraulic system, including main control valve and at least one hydraulic control unit, every hydraulic control unit includes reversing valve, locking piece and oil cylinder, the oil outlet on main control valve is communicated with one end of oil supply pipeline, and the oil return port on main control valve is communicated with one end of oil return pipeline;

[0006] The reversing valve is equipped with interface one and interface two that are communicated or disconnected, interface one is communicated with the other end of oil supply pipeline, and interface two is communicated through the rodless cavity of oil cylinder of pipeline one;The rod cavity of oil cylinder, locking piece and the other end of oil return pipeline are sequentially communicated through pipeline.

[0007] The utility model has the advantages of simple structure, reasonable design, simplified structure, remote operation is realized through electric control, and the strength of operating personnel is greatly reduced, which plays a great promoting role in vigorously popularizing multifunctional sowing machine.

[0008] The utility model has the advantages of simple structure, reasonable design, simplified structure, remote operation is realized through electric control, and the strength of operating personnel is greatly reduced, which plays a great promoting role in vigorously popularizing multifunctional sowing machine.

[0009] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0010] Further, the number of hydraulic control units is multiple, and multiple hydraulic control units are distributed side by side;The interface one on the reversing valve in every hydraulic control unit is communicated with the oil supply pipeline through pipeline, and the corresponding end of the locking piece in every hydraulic control unit is communicated with the other end of the oil return pipeline through pipeline.

[0011] The beneficial effect of the further scheme is that the structure is simple, the number of the hydraulic control units is reasonable, and the marking rod is ensured to operate stably.

[0012] Further, the number of the hydraulic control units is two, and the two hydraulic control units are distributed side by side.

[0013] The beneficial effect of the further scheme is that the structure is simple, the number of the hydraulic control units is reasonable, and the marking rod is ensured to operate stably.

[0014] Further, the reversing valve is a two-position two-way reversing valve.

[0015] The beneficial effect of the further scheme is that the two-position two-way reversing valve is reasonable, the structure is simple, maintenance is facilitated, and the cost is low.

[0016] Further, the reversing valve is a two-position two-way electromagnetic reversing valve.

[0017] The beneficial effect of the further scheme is that the two-position two-way electromagnetic reversing valve is reasonable, the structure is simple, maintenance is facilitated, and the cost is low.

[0018] Further, the locking member is a hydraulic lock, and two ends of the hydraulic lock are communicated with a rod cavity of the oil cylinder and one end of the oil return pipeline through pipelines.

[0019] The beneficial effect of the further scheme is that the hydraulic lock is simple in structure, convenient to operate, safe and reliable in operation, and wide in application range.

[0020] Further, a control interface on the hydraulic lock is communicated with the pipeline through a control pipeline.

[0021] The beneficial effect of the further scheme is that the structure is simple and reasonable, the control of the opening and closing of the hydraulic lock is realized by using oil in the control pipeline, and operation is facilitated.

[0022] The utility model also relates to a seeding machine, including the marking rod control hydraulic system as described above.

[0023] The beneficial effect of the further scheme is that the utility model provides a seeding machine, the seeding machine is simple in structure, reasonable in design, and simple in structure, remote operation is realized through electric control, meanwhile, the strength of operating personnel is greatly reduced, and the utility model plays a great role in promoting the popularization of multifunctional seeding machines.

[0024] Further, the utility model also relates to a seeding machine, including the marking rod control hydraulic system as described above.

[0025] The beneficial effect of the further scheme is that the structure is simple and reasonable, and each component is integrated on the frame, so that assembly is facilitated.

[0026] Further, the line drawing rod is further included, and the telescopic rod of each oil cylinder is connected with the line drawing rod.

[0027] The beneficial effect of the further scheme is that the operation of the line drawing rod is realized by the telescopic rod of the oil cylinder, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The principle diagram of the utility model;

[0029] Figure 2 The principle diagram of the utility model when the oil cylinder is in the extended state;

[0030] Figure 3 The principle diagram of the utility model when the oil cylinder is in the retracted state;

[0031] Figure 4 The principle diagram of the utility model when the oil cylinder is in the locked state.

[0032] In the drawings, the components represented by each reference numeral are listed as follows:

[0033] 1, main control valve; 2, two-position two-way electromagnetic reversing valve; 3, hydraulic lock; 4, oil cylinder. DETAILED DESCRIPTION

[0034] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0035] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0036] In the description of the utility model, it is necessary to explain that, unless there are definite provisions and limitations, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0037] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0038] Embodiment 1

[0039] As Figures 1 to 4 The utility model provides a scribing rod control hydraulic system, including main control valve 1 and at least one hydraulic control unit, each hydraulic control unit includes reversing valve, locking piece and oil cylinder 4, the oil outlet on main control valve 1 is communicated with the one end of oil supply pipeline, and the oil return port on main control valve 1 is communicated with the one end of oil return pipeline;

[0040] The reversing valve is equipped with interface one and interface two that are communicated or disconnected, the interface one is communicated with the other end of oil supply pipeline, and the interface two is communicated by the rodless cavity of oil cylinder 4 of pipeline one, the rod cavity of oil cylinder 4, the locking piece and the other end of oil return pipeline are sequentially communicated by pipeline.

[0041] During operation, oil reaches reversing valve through main control valve, then reaches oil cylinder, and the telescopic operation of oil cylinder is realized, in addition, the oil cylinder can be locked by hydraulic lock.

[0042] The utility model has simple structure, reasonable design, simplifies the structure, realizes remote operation by electric control, and greatly reduces the strength of operating personnel, which plays a great promoting role for popularizing multifunctional seeding machine.

[0043] Embodiment 2

[0044] On the basis of embodiment 1, in the utility model, the number of hydraulic control units is multiple, and multiple hydraulic control units are distributed side by side, the interface one on the reversing valve in each hydraulic control unit is communicated with the oil supply pipeline by pipeline, and the corresponding end of the locking piece in each hydraulic control unit is communicated with the other end of the oil return pipeline by pipeline.

[0045] The scheme has simple structure, and the number of hydraulic control units is reasonably designed, to ensure the stable operation of scribing rod.

[0046] Embodiment 3

[0047] In this embodiment, based on embodiment 2, the number of the hydraulic control units is two, and the two hydraulic control units are distributed side by side.

[0048] The scheme has simple structure, and the number of the hydraulic control units is reasonable, thereby ensuring stable operation of the marking rod.

[0049] Alternatively, the hydraulic control unit can also adopt other suitable number, for example, three.

[0050] Embodiment 4

[0051] In this embodiment, based on the above embodiments, the reversing valve is a two-position two-way reversing valve.

[0052] The two-position two-way reversing valve is reasonable in selection, simple in structure, easy to maintain and low in cost.

[0053] Embodiment 5

[0054] In this embodiment, based on embodiment 4, the reversing valve is a two-position two-way electromagnetic reversing valve 2.

[0055] The two-position two-way electromagnetic reversing valve 2 is reasonable in selection, simple in structure, easy to maintain and low in cost.

[0056] Embodiment 6

[0057] In this embodiment, based on the above embodiments, the locking member is a hydraulic lock 3, and two ends of the hydraulic lock 3 are respectively communicated with a rod cavity of the oil cylinder 4 and one end of the oil return pipeline through pipelines.

[0058] The hydraulic lock 3 is simple in structure, easy to operate, safe and reliable in operation, and wide in application range.

[0059] Embodiment 7

[0060] In this embodiment, based on embodiment 6, a control interface on the hydraulic lock 3 is communicated with the pipeline through a control pipeline.

[0061] The scheme has simple structure and reasonable design, and the control of opening and closing of the hydraulic lock 3 is realized by using oil in the control pipeline, thereby being convenient in operation.

[0062] Embodiment 8

[0063] In this embodiment, based on the above embodiments, a seeding machine is also provided, which comprises the marking rod control hydraulic system as described above.

[0064] The seeding machine provided in this embodiment has simple structure, reasonable design, simplified structure, realizes remote operation through electric control, greatly reduces the intensity of the operating personnel, and plays a great role in promoting the popularization of multifunctional seeding machines.

[0065] Embodiment 9

[0066] On the basis of Embodiment 8, this embodiment further comprises a rack, and the main control valve 1, the reversing valve, the locking member and the oil cylinder 4 are respectively mounted on the rack.

[0067] This scheme has simple structure and reasonable design, and various components are integrated on the rack, so that assembly is convenient.

[0068] Embodiment 10

[0069] On the basis of any one of Embodiments 8 to 9, this embodiment further comprises a scribing rod, and the telescopic rod of each oil cylinder 4 is connected with the scribing rod.

[0070] During operation, the telescopic rod of the oil cylinder 4 is used to realize the operation of the scribing rod, so that operation is convenient.

[0071] The working principle of the utility model is as follows:

[0072] (1) Oil cylinder extension state:

[0073] Through the operation control of the main valve 1, the pressure oil reaches the two-position two-way electromagnetic reversing valve 2, and the two-position two-way electromagnetic reversing valve 2 is electrified at this time, and is in the upper oil circuit position. After the pressure oil passes through the two-position two-way electromagnetic reversing valve 2, it reaches the large cavity of the oil cylinder 4 (i.e. the rodless cavity of the oil cylinder 4), so that the oil cylinder 4 is forced to extend outward, and the oil in the small cavity of the oil cylinder 4 (i.e. the rod cavity of the oil cylinder 4) reaches the hydraulic lock 3 (refer to Figure 2 ).

[0074] At this time, the hydraulic lock 3 is in a closed state, and the pressure oil to the large cavity of the oil cylinder 4 will gradually increase, and the pressure oil will force the hydraulic lock 3 to open. At this time, the oil in the small cavity of the oil cylinder 4 reaches the main control valve 1 back to the oil tank through the hydraulic lock 3.

[0075] (2) Oil cylinder retraction state:

[0076] Through the operation control of the main valve 1, the pressure oil reaches the small cavity of the oil cylinder 4 after the hydraulic lock 3, so that the oil cylinder 4 is forced to retract (refer to Figure 3 ).

[0077] At this time, the two-position two-way electromagnetic reversing valve 2 is electrified at the same time, and is in the upper oil circuit position, and the oil return of the large cavity of the oil cylinder 4 reaches the main control valve 1 back to the oil tank after the electromagnetic valve 3.

[0078] (3) Oil cylinder locking state:

[0079] When the marking machine is adjusted in place, the main control valve 1 is operated to the middle position, and the two-position two-way electromagnetic reversing valve 2 is not electrified. The small cavity oil of the oil cylinder 4 is closed by the hydraulic lock 3, and the one-way valve of the lower oil way of the two-position two-way electromagnetic reversing valve 2 can prevent the external pressure oil from being delivered to the large cavity of the oil cylinder 4 due to misoperation, so that the oil cylinder 4 is completely in the locked state and keeps still (see Figure 4 ).

[0080] The beneficial effects of the utility model are as follows:

[0081] 1. The tractor main control valve is adopted to realize the control function of the marking rod of the seeding machine.

[0082] 2. The electro-hydraulic control mode is adopted to realize remote operation, which is convenient and fast.

[0083] 3. The position control of the marking rod is realized through the logic control between components.

[0084] 4. The position locking of the marking rod is realized through the special hydraulic locking structure.

[0085] It should be noted that the arrows in the drawings only refer to the path of the oil flow and have no other substantial meanings.

[0086] In addition, all the electronic components involved in the utility model adopt the prior art, and the above-mentioned components are electrically connected with the controller, and the control circuit between the controller and the components is the prior art.

[0087] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

[0088] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that can be understood by those skilled in the art.

[0089] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hydraulic system for controlling a line marking pole, characterized in that: It includes a main control valve (1) and at least one hydraulic control unit. Each hydraulic control unit includes a directional valve, a locking element and a cylinder (4). The oil outlet of the main control valve (1) is connected to one end of the oil supply line, and the oil return port of the main control valve (1) is connected to one end of the oil return line. The reversing valve is provided with an interface 1 and an interface 2 that are connected or disconnected. The interface 1 is connected to the other end of the oil supply pipeline, and the interface 2 is connected through the rodless chamber of the cylinder (4) of the pipeline 1. The rod chamber of the cylinder (4), the locking element and the other end of the return oil pipeline are connected in sequence through the pipeline.

2. The hydraulic system for controlling the marking rod according to claim 1, characterized in that: The hydraulic control units are multiple and arranged in parallel; the interface on the directional valve in each hydraulic control unit is connected to the oil supply line through a pipeline, and the corresponding end of the locking element in each hydraulic control unit is connected to the other end of the return line through a pipeline.

3. The hydraulic system for controlling the marking rod according to claim 2, characterized in that: There are two hydraulic control units, which are arranged side by side.

4. The hydraulic system for controlling the marking rod according to claim 1, characterized in that: The reversing valve is a two-position two-way reversing valve.

5. The hydraulic system for controlling the marking rod according to claim 4, characterized in that: The reversing valve is a two-position two-way solenoid reversing valve (2).

6. The hydraulic system for controlling the marking rod according to any one of claims 1-5, characterized in that: The locking component is a hydraulic lock (3), and the two ends of the hydraulic lock (3) are respectively connected to the rod chamber of the oil cylinder (4) and one end of the return oil pipeline through pipelines.

7. The hydraulic system for controlling the marking rod according to claim 6, characterized in that: The control interface on the hydraulic lock (3) is connected to the pipeline through a control pipeline.

8. A seeder, characterized in that: Includes the hydraulic system for controlling the marking pole as described in any one of claims 1-7.

9. The seeder according to claim 8, characterized in that: It also includes a frame, on which the main control valve (1), the reversing valve, the locking element and the oil cylinder (4) are respectively mounted.

10. The seeder according to claim 8, characterized in that: It also includes a marking rod, and the telescopic rod of each of the cylinders (4) is connected to the marking rod.

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