Side wing folding control hydraulic system, folding side wing structure and seeder

Abstract

The utility model relates to a side wing folding control hydraulic system, a folding type side wing structure and a seeder, the side wing folding control hydraulic system comprises a reversing valve, a hydraulic lock and two oil cylinders, and the reversing valve is provided with an interface a and an interface b which are communicated with each other; the large cavities of the two oil cylinders are communicated through a pipeline LA, and the small cavities of the two oil cylinders are communicated through a pipeline LB; the connector b is communicated with the pipeline LB through a pipeline LC, and one end of the hydraulic lock is communicated with the pipeline LA through a pipeline LD. The utility model has the beneficial effects that the structure is simple, the design is reasonable, and the structure is simplified through hydraulic control; meanwhile, remote operation is realized through electric appliance control; and in addition, 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] This utility model relates to the field of seeder technology, specifically to a side wing folding control hydraulic system, a folding side wing structure, and a seeder. Background Technology

[0002] With the widespread use of seeders, the technology platform of seeders has gradually improved. Not only is there a requirement for the accuracy of seeding, but the auxiliary functions of seeding are also becoming more and more abundant, such as fans, downforce, seeding rate, marking machine, support wheels, and side folding. Utility Model Content

[0003] This utility model provides a side wing folding control hydraulic system, a folding side wing structure, and a seeder, aiming to solve the problems in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A side wing folding control hydraulic system includes a reversing valve, a hydraulic lock, and two cylinders. The reversing valve is provided with an interface a and an interface b that are interconnected.

[0006] The large chambers of the two cylinders are connected by a pipeline LA, and the small chambers of the two cylinders are connected by a pipeline LB;

[0007] The interface b is connected to the pipeline LB via the pipeline LC, and one end of the hydraulic lock is connected to the pipeline LA via the pipeline LD.

[0008] The beneficial effects of this utility model are: during use, (1) when the oil cylinder is in the extended state, the pressure oil enters the large chamber of the oil cylinder through the hydraulic lock, the oil cylinder extends at the same time, and the oil in the small chamber is collected together and returns to the oil tank; at the same time, the reversing valve is energized, the reversing valve is in the upper oil circuit position, and the return oil returns to the oil tank after passing through the reversing valve.

[0009] (2) When the cylinder is in the retracted state, the pressure oil enters the reversing valve. At this time, the reversing valve is not energized and is in the lower oil circuit position. After the pressure oil passes through the reversing valve, it enters the small chamber of the cylinder. At the same time, the cylinder retracts, and the oil in the large chamber is collected and returned to the hydraulic lock. The hydraulic lock is in the closed state at this time, which causes the pressure of the pressure oil entering the small chamber of the cylinder to gradually increase. The increased pressure forces the hydraulic lock to open, and the return oil returns to the oil tank after passing through the hydraulic lock.

[0010] (3) When the cylinder is in the locked state, after the side wing folding device is adjusted to the position, the reversing valve is not energized at the same time; the large chamber oil of the cylinder is closed by the hydraulic lock, and the small chamber oil of the cylinder is closed by the check valve of the oil circuit below the reversing valve, so that the cylinder is in the locked state and remains stationary.

[0011] This utility model has a simple structure and reasonable design. The hydraulic control simplifies the structure, while the electrical control enables remote operation. In addition, it greatly reduces the intensity of operation and plays a significant role in promoting the use of multi-functional seeders.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the interface a is connected to one end of the pipeline LE.

[0014] The advantages of adopting the above-mentioned further scheme are that the structure is simple, the design is reasonable, and one end of the pipeline LE is connected to the interface a to facilitate the flow of oil.

[0015] Furthermore, the other end of the hydraulic lock is connected to one end of the pipeline LF.

[0016] The advantages of adopting the above-mentioned further scheme are that the structure is simple and the design is reasonable, with one end of the pipeline LF connected to the other end of the hydraulic lock to facilitate the flow of oil.

[0017] Furthermore, it also includes a main control valve, with the other end of the pipeline LE and the other end of the pipeline LF respectively connected to the two ends of the main control valve.

[0018] The advantages of adopting the above-mentioned further scheme are that it has a simple structure and reasonable design, and uses the main control valve to control the flow of oil to supply oil to the entire system or to return oil to the entire system.

[0019] Furthermore, the hydraulic lock is also provided with a reversing interface that communicates with its internal valve core cavity, and the reversing interface is connected to the pipeline LB through pipeline LG.

[0020] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The reversing interface is connected to the pipeline LB through the pipeline LG, thereby using the oil in the hydraulic system to reversing the hydraulic lock, which is convenient.

[0021] Furthermore, the directional valve is an electromagnetic directional valve.

[0022] The advantages of adopting the above-mentioned further solutions are that the electromagnetic directional valve is reasonably selected, the degree of automation is high, and the directional switching is convenient.

[0023] Furthermore, the electromagnetic directional valve is a two-position two-way valve.

[0024] The advantages of adopting the above-mentioned further solution are that the two-position two-way valve is reasonably selected, the degree of automation is high, and the system switching requirements are met.

[0025] This utility model also relates to a folding side wing structure, including the side wing folding control hydraulic system as described above.

[0026] The beneficial effect of adopting the above-mentioned further solutions is that this utility model also provides a folding side wing structure, which has a simple structure and reasonable design. The structure is simplified by hydraulic control; at the same time, remote operation is realized by electrical control; in addition, it greatly reduces the intensity of operators and plays a significant role in promoting the multi-functional seeder.

[0027] Furthermore, it also includes a side wing body, with the telescopic ends of the two hydraulic cylinders respectively connected to the side wing body.

[0028] The advantage of adopting the above-mentioned further solution is that during operation, the folding and extension of the side wing body can be achieved by using two hydraulic cylinders, making the operation convenient.

[0029] This utility model also relates to a seeder, including the folding side wing structure described above.

[0030] The beneficial effect of adopting the above-mentioned further solutions is that this utility model also provides a seeder with a simple structure and reasonable design. The structure is simplified by hydraulic control; at the same time, remote operation is realized by electrical control; in addition, it greatly reduces the intensity of operators and plays a significant role in promoting the widespread use of multi-functional seeders. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the hydraulic cylinder in the extended state in this utility model;

[0033] Figure 3 This is a schematic diagram of the structure of the hydraulic cylinder in the retracted state in this utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the hydraulic cylinder in the locked state in this utility model.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Main control valve; 2. Solenoid directional valve; 3. Hydraulic lock; 4. Oil cylinder. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] Example 1

[0042] like Figures 1 to 4 As shown, this embodiment provides a side wing folding control hydraulic system, including a reversing valve, a hydraulic lock 3 and two oil cylinders 4. The reversing valve is provided with an interface a and an interface b that are interconnected.

[0043] The large chambers of the two hydraulic cylinders 4 are connected by a pipeline LA, and the small chambers of the two hydraulic cylinders 4 are connected by a pipeline LB.

[0044] The interface b is connected to the pipeline LB via the pipeline LC, and one end of the hydraulic lock 3 is connected to the pipeline LA via the pipeline LD.

[0045] During use, (1) when the cylinder 4 is in the extended state, the pressure oil enters the large chamber of the cylinder 4 through the hydraulic lock 3, the cylinder 4 extends at the same time, and the oil in the small chamber is collected and returned; at the same time, the reversing valve is energized and the reversing valve is in the upper oil circuit position, and the return oil returns to the oil tank after passing through the reversing valve.

[0046] (2) When the cylinder 4 is in the retracted state, the pressure oil enters the reversing valve. At this time, the reversing valve is not energized and is in the lower oil circuit position. After the pressure oil passes through the reversing valve, it enters the small chamber of the cylinder 4. At the same time, the cylinder 4 retracts, and the oil in the large chamber is collected and returned to the hydraulic lock 3. The hydraulic lock 3 is in the closed state at this time, which causes the pressure of the pressure oil entering the small chamber of the cylinder 4 to gradually increase. The increased pressure forces the hydraulic lock 3 to open, and the return oil returns to the oil tank after passing through the hydraulic lock 3.

[0047] (3) When the cylinder 4 is in the locked state, after the side wing folding device is adjusted to the position, the reversing valve is not energized at the same time; the large chamber oil of the cylinder 4 is closed by the hydraulic lock 3, and the small chamber oil of the cylinder 4 is closed by the check valve of the oil circuit below the reversing valve, so the cylinder 4 is in the locked state and remains stationary.

[0048] Preferably, in this embodiment, the large chamber of the two hydraulic cylinders 4 refers to the rodless chamber, and the small chamber of the two hydraulic cylinders 4 refers to the rod-operated chamber.

[0049] In addition, the hydraulic lock 3 and the two cylinders 4 mentioned above are based on existing technologies, and their specific structures and principles will not be described in detail here.

[0050] This embodiment features a simple and rational design, simplifying the structure through hydraulic control; simultaneously, it enables remote operation through electrical control; furthermore, it significantly reduces the intensity of operations for workers, greatly promoting the widespread adoption of multi-functional seeders.

[0051] Example 2

[0052] Based on Example 1, in this example, interface a is connected to one end of pipe LE.

[0053] The scheme has a simple structure and reasonable design. One end of the pipeline LE is connected to the interface a to facilitate the flow of oil.

[0054] Example 3

[0055] Based on Example 2, in this example, the other end of the hydraulic lock 3 is connected to one end of the pipeline LF.

[0056] The scheme has a simple structure and reasonable design. One end of the pipeline LF is connected to the other end of the hydraulic lock to facilitate the flow of oil.

[0057] Example 4

[0058] Based on Embodiment 2, this embodiment also includes a main control valve 1, with the other end of the pipeline LE and the other end of the pipeline LF respectively connected to the two ends of the main control valve 1.

[0059] The scheme has a simple structure and reasonable design. It uses the main control valve 1 to control the flow of oil to supply oil to the entire system or to return oil to the entire system.

[0060] Preferably, in this embodiment, the main control valve 1 is a two-position four-way valve in the prior art, which is provided with oil port one, oil port two, oil port three and oil port four. Oil port one can be connected to oil port two and oil port three can be connected to oil port four, or oil port one can be connected to oil port three and oil port two can be connected to oil port four.

[0061] In addition, the above-mentioned oil port one is connected to the oil tank through the oil inlet pipe, and oil port four is connected to the oil tank through the oil return pipe. An oil supply pump is fixedly installed on the oil inlet pipe.

[0062] Furthermore, the other end of the pipeline LE is connected to port two on the main control valve 1, and the other end of the pipeline LF is connected to port three on the main control valve 1.

[0063] It should be noted that the fuel tank is not shown in the attached diagram, but it is actually included.

[0064] Example 5

[0065] Based on the above embodiments, in this embodiment, the hydraulic lock 3 is further provided with a reversing interface communicating with its internal valve core cavity, and the reversing interface is connected to the pipeline LB through pipeline LG.

[0066] The scheme has a simple structure and reasonable design. The reversing interface is connected to the pipeline LB through the pipeline LG, thereby using the oil in the hydraulic system to reverse the hydraulic lock 3, which is convenient.

[0067] Example 6

[0068] Based on the above embodiments, in this embodiment, the reversing valve is an electromagnetic reversing valve 2.

[0069] The selection of electromagnetic reversing valve 2 is reasonable, with a high degree of automation and convenient reversing.

[0070] Example 7

[0071] Based on Example 6, in this example, the electromagnetic reversing valve 2 is a two-position two-way valve.

[0072] The two-position two-way valve is a reasonable choice, with a high degree of automation, and meets the system's reversing requirements.

[0073] It should be noted that the electromagnetic reversing valve 2 mentioned above is a two-position two-way valve in the existing technology, and its specific structure and principle will not be described in detail here.

[0074] Example 8

[0075] Based on the above embodiments, this embodiment also provides a folding side wing structure, including the side wing folding control hydraulic system as described above.

[0076] This embodiment also provides a folding side wing structure, which is simple in structure and reasonable in design. The structure is simplified by hydraulic control; at the same time, remote operation is realized by electrical control; in addition, it greatly reduces the intensity of operation and plays a significant role in promoting the multi-functional seeder.

[0077] Example 9

[0078] Based on embodiment 8, this embodiment also includes a side wing body, and the telescopic ends of the two hydraulic cylinders 4 are respectively connected to the side wing body.

[0079] During operation, two hydraulic cylinders 4 are used to fold and extend the side wing body, making the operation convenient.

[0080] It should be noted that the aforementioned wing body uses existing technology, and its specific structure and principle will not be elaborated here.

[0081] Example 10

[0082] Based on the above embodiments, this embodiment also provides a seeder, including the folding side wing structure described above.

[0083] This embodiment also provides a seeder with a simple and reasonable structure. The structure is simplified by hydraulic control, and remote operation is achieved through electrical control. In addition, it greatly reduces the intensity of operation and plays a significant role in promoting the use of multi-functional seeders.

[0084] The working principle of this utility model is as follows:

[0085] (1) When cylinder 4 is in the extended position, pressurized oil enters the large chamber of cylinder 4 through hydraulic lock 3, and cylinder 4 extends simultaneously. The oil in the small chamber is collected and returns; at the same time, the directional valve is energized and is in the upper oil circuit position. The return oil returns to the oil tank after passing through the directional valve (refer to...). Figure 2 (as shown);

[0086] (2) When cylinder 4 is in the retracted state, pressurized oil enters the directional valve. At this time, the directional valve is not energized and is in the lower oil circuit position. After passing through the directional valve, the pressurized oil enters the small chamber of cylinder 4. Simultaneously, cylinder 4 retracts, and the oil in the large chamber gathers and returns to hydraulic lock 3. Hydraulic lock 3 is in the closed state at this time, causing the pressure of the pressurized oil entering the small chamber of cylinder 4 to gradually increase. The increased pressure forces hydraulic lock 3 to open, and the return oil returns to the oil tank after passing through hydraulic lock 3 (refer to...). Figure 3 (as shown);

[0087] (3) When cylinder 4 is in the locked state, after the side wing folding device is adjusted to the correct position, the directional valve is de-energized; the hydraulic fluid in the large chamber of cylinder 4 is closed by hydraulic lock 3, and the hydraulic fluid in the small chamber of cylinder 4 is closed by the check valve in the oil circuit below the directional valve. Thus, cylinder 4 is in the locked state and remains stationary (refer to...). Figure 4 (As shown).

[0088] The advantages of this utility model are as follows:

[0089] 1. The folding control function of the seeder's side wings is achieved by using the tractor's main control valve;

[0090] 2. Remote operation is achieved through electro-hydraulic control, which is convenient and quick;

[0091] 3. The position control of the wing folding is achieved by using logic control between components;

[0092] 4. By adopting a special hydraulic locking structure, the position of the folding side wings is locked.

[0093] It should be noted that the letters in the attached diagram only indicate the corresponding pipes and interfaces, and have no other substantive meaning.

[0094] In addition, all electronic components involved in this utility model adopt existing technology, and all the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is existing technology.

[0095] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0096] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0097] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic system for controlling wing folding, characterized in that: It includes a reversing valve, a hydraulic lock (3) and two oil cylinders (4), wherein the reversing valve is provided with an interface a and an interface b that are interconnected; The large cavities of the two cylinders (4) are connected by a pipeline LA, and the small cavities of the two cylinders (4) are connected by a pipeline LB; The interface b is connected to the pipeline LB through the pipeline LC, and one end of the hydraulic lock (3) is connected to the pipeline LA through the pipeline LD.

2. The wing folding control hydraulic system according to claim 1, characterized in that: The interface a is connected to one end of the pipeline LE.

3. The wing folding control hydraulic system according to claim 2, characterized in that: The other end of the hydraulic lock (3) is connected to one end of the pipeline LF.

4. The wing folding control hydraulic system according to claim 3, characterized in that: It also includes a main control valve (1), and the other end of the pipeline LE and the other end of the pipeline LF are respectively connected to the two ends of the main control valve (1).

5. The wing folding control hydraulic system according to any one of claims 1-4, characterized in that: The hydraulic lock (3) is also provided with a reversing interface that communicates with its internal valve core cavity. The reversing interface is connected to the pipeline LB through pipeline LG.

6. The wing folding control hydraulic system according to any one of claims 1-4, characterized in that: The reversing valve is a solenoid reversing valve (2).

7. The wing folding control hydraulic system according to claim 6, characterized in that: The electromagnetic reversing valve (2) is a two-position two-way valve.

8. A folding side wing structure, characterized in that: Includes the wing folding control hydraulic system as described in any one of claims 1-7.

9. The folding side wing structure according to claim 8, characterized in that: It also includes a side wing body, and the telescopic ends of the two hydraulic cylinders (4) are respectively connected to the side wing body.

10. A seeder, characterized in that: Including the folding wing structure as described in any one of claims 8-9.

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