Hydraulic system of an automated rapeseed blanket seedling transplanter

Abstract

The present invention discloses a hydraulic system for an automated rapeseed blanket seedling transplanter, comprising: an oil station; an oil inlet pipeline provided with a pump and connected to the P port of a reversing valve; a multi-way valve group connected to the A port of the reversing valve; a first pipeline connected to the T port of the reversing valve and the T port of a pressure-compensating throttle valve; a second pipeline connected to the B port of the reversing valve and the P port of the pressure-compensating throttle valve; a third pipeline connected to the A port of the pressure-compensating throttle valve and a profile valve; one end of the A port of the profile valve is connected to the oil station via a fourth pipeline, and the other end is connected to the T port of the profile valve; when the reversing valve is not working, pressure oil enters the multi-way valve group via the oil inlet pipeline, thereby ensuring the normal operation of the tractor hydraulic system; with this arrangement, the operation of the transplanter and the tractor can be realized without the need to toggle the reversing valve in real time, thus saving time and effort.

Description

Technical Field

[0001] The invention relates to a hydraulic system, in particular to a hydraulic system of an automatic rapeseed blanket seedling transplanter. Background Art

[0002] The rapeseed blanket seedling combined transplanter consists of a tractor hydraulic system and a transplanter's own hydraulic system. The existing transplanter requires the tractor driver to manually pull the multi-way valve reversing handle in real time when working. This operation is redundant and complicated, and it is easy for the transplanter system to malfunction due to lax manpower.

[0003] The existing hydraulic system is shown in the figure Figure 1 As shown, after the pump 2 draws oil from the oil station 1, it outputs the pressure oil to the multi-way valve group 9. Here, if the pressure-compensated throttle valve 6, the contour valve 7, and the contour oil cylinder 8 in the hydraulic system of the transplanter need to work, the driver needs to manually start the first reversing valve 91 in the multi-way valve group 9. The driver needs to manually pull the reversing handle of the multi-way valve continuously, which may easily cause the system to malfunction due to laxity.

[0004] In summary, how to make the hydraulic system transplanter work in actual operation without the need for the driver to manually pull the reversing valve rod in real time has become an urgent problem that researchers in this field need to solve. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: how to make the hydraulic system transplanter work in practice without the need for the driver to manually pull the reversing valve rod in real time;

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The present invention discloses a hydraulic system for an automated rapeseed blanket seedling transplanter, comprising: an oil station; an oil inlet pipeline provided with a pump connected to the P port of a reversing valve; a multi-way valve group connected to the A port of the reversing valve; a first pipeline connected to the T port of the reversing valve and the T port of a pressure-compensating throttle valve; a second pipeline connected to the B port of the reversing valve and the P port of the pressure-compensating throttle valve; a third pipeline connected to the A port of the pressure-compensating throttle valve and a contour valve; one end of the A port of the contour valve is connected to the oil station via a fourth pipeline, and the other end is connected to the T port of the contour valve;

[0008] In this solution, when the reversing valve is not working, the pressure oil enters the multi-way valve group through the oil inlet pipeline to ensure the normal operation of the tractor hydraulic system;

[0009] When the reversing valve is working, the pressure oil enters the pressure-compensated throttle valve through the oil inlet pipe and the second oil pipe. The pressure-compensated throttle valve distributes the pressure oil to the first oil pipe and the third oil pipe. The pressure oil enters the multi-way valve group through the first oil pipe through the reversing valve to ensure the normal operation of the tractor hydraulic system. The pressure oil enters the contour valve through the third pipe to ensure the normal operation of the transplanter.

[0010] In summary, this setting does not require real-time toggling of the reversing valve to realize the operation of the transplanter and tractor, saving time and effort.

[0011] In order to illustrate the specific structure of the pressure-compensated throttle valve, the present invention adopts the pressure-compensated throttle valve comprising a pressure-stabilizing valve and a first relief valve arranged in parallel.

[0012] In order to facilitate the mutual replacement of the transplanter and the tractor, the present invention adopts that the first pipeline, the second pipeline, and the fourth pipeline are all provided with quick plug connectors;

[0013] When the quick-connect connectors are separated, the transplanter and tractor are separated, and the user can quickly replace different attachments.

[0014] In order to prevent the pressure oil from overflowing when the transplanter and the tractor are separated, the present invention further comprises: a fifth pipeline connected to the B port of the reversing valve and the oil station; and a first overflow valve provided on the fifth pipeline.

[0015] When the reversing valve is working and the transplanter and the tractor are separated, the pressure oil flows back to the oil station through the fifth pipeline and the first relief valve.

[0016] In order to illustrate the specific structure of the reversing valve, the present invention adopts a two-position four-way reversing valve as the reversing valve.

[0017] The beneficial effects of the present invention are as follows: the present invention is a hydraulic system for an automated rapeseed blanket seedling transplanter; when the reversing valve is not working, the pressure oil enters the multi-way valve group through the oil inlet pipe, thereby ensuring the normal operation of the tractor hydraulic system; when the reversing valve is working, the pressure oil enters the pressure-compensating throttle valve through the oil inlet pipe and the second oil pipe, and the pressure-compensating throttle valve distributes the pressure oil to the first oil pipe and the third oil pipe, and the pressure oil enters the multi-way valve group through the first oil pipe through the reversing valve, thereby ensuring the normal operation of the tractor hydraulic system, and the pressure oil enters the profiling valve through the third pipe, thereby ensuring the normal operation of the transplanter; in summary, such an arrangement does not require the real-time toggling of the reversing valve to realize the operation of the transplanter and the tractor, thereby saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and examples.

[0019] Figure 1 It is a traditional hydraulic diagram;

[0020] Figure 2 is a hydraulic diagram of the present invention;

[0021] In the figure: 1-oil station, 2-pump, 3-reversing valve, 4-first relief valve, 5-quick connector, 6-pressure-compensated throttle valve, 7-profile valve, 9-multi-way valve group, 10-oil inlet line, 11-first line, 12-second line, 13-third line, 14-fourth line, 15-fifth line, 91-first reversing valve. DETAILED DESCRIPTION

[0022] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0023] like Figure 2 As shown, the present invention is a hydraulic system for an automated rapeseed blanket seedling transplanter, comprising: an oil station 1; an oil inlet pipeline 10, on which a pump 2 is provided and connected to the P port of a reversing valve 3; a multi-way valve group 9, which is connected to the A port of the reversing valve 3; a first pipeline 11, which is connected to the T port of the reversing valve 3 and the T port of a pressure-compensating throttle valve 6; a second pipeline 12, which is connected to the B port of the reversing valve 3 and the P port of the pressure-compensating throttle valve 6; a third pipeline 13, which is connected to the A port of the pressure-compensating throttle valve 6 and a contour valve 7; one end of the A port of the contour valve 7 is connected to the oil station 1 via a fourth pipeline 14, and the other end is connected to the T port of the contour valve 7;

[0024] In this solution, when the reversing valve is not working, the pressure oil enters the multi-way valve group through the oil inlet pipeline to ensure the normal operation of the tractor hydraulic system;

[0025] When the reversing valve is working, the pressure oil enters the pressure-compensated throttle valve through the oil inlet pipe and the second oil pipe. The pressure-compensated throttle valve distributes the pressure oil to the first oil pipe and the third oil pipe. The pressure oil enters the multi-way valve group through the first oil pipe through the reversing valve to ensure the normal operation of the tractor hydraulic system. The pressure oil enters the contour valve through the third pipe to ensure the normal operation of the transplanter.

[0026] In summary, this setting does not require real-time toggling of the reversing valve to realize the operation of the transplanter and tractor, saving time and effort.

[0027] like Figure 2 As shown, in order to illustrate the specific structure of the pressure-compensated throttle valve, the present invention adopts the pressure-compensated throttle valve 6 including a pressure-stabilizing valve and a first relief valve arranged in parallel.

[0028] like Figure 2As shown, in order to facilitate the mutual replacement of the transplanter and the tractor, the present invention adopts that the first pipeline 11, the second pipeline 12, and the fourth pipeline 14 are all provided with quick connectors 5;

[0029] When the quick-connect connectors are separated, the transplanter and tractor are separated, and the user can quickly replace different attachments.

[0030] like Figure 1 As shown, in order to avoid overflow of pressure oil when the transplanter and the tractor are separated, the present invention further includes: a fifth pipeline 15, which is connected to the B port of the reversing valve 3 and the oil station 1; and a first overflow valve 4, which is arranged on the fifth pipeline 15.

[0031] When the reversing valve is working and the transplanter and the tractor are separated, the pressure oil flows back to the oil station through the fifth pipeline and the first relief valve.

[0032] like Figure 2 As shown, in order to illustrate the specific structure of the reversing valve, the reversing valve 3 of the present invention adopts a two-position four-way reversing valve.

[0033] Working principle:

[0034] like Figure 2 As shown, a reversing valve 3 is added between the pump 2 and the multi-way valve group 9. The function of the reversing valve is:

[0035] ① When the reversing valve 3 is not working, the hydraulic oil output by the pump 2 directly enters the multi-way valve group 9, ensuring that the original tractor hydraulic system can work normally after the rapeseed transplanter hydraulic system is dismantled.

[0036] ② After the reversing valve is reversed, the hydraulic oil output by the pump 2 directly enters the pressure-compensated throttle valve 6. After the pressure is stabilized and overflowed at the A port of the pressure-compensated throttle valve 6, the hydraulic oil enters the contour valve 7. At this time, when the transplanter is working, there is no need to continue to manually pull the multi-way valve reversing handle; and the hydraulic oil at the T port of the pressure-compensated throttle valve 6 will enter the multi-way valve group 9, so the original tractor hydraulic system can work normally.

[0037] At the same time, a relief valve 4 is added between the reversing valve 3 and the multi-way valve group 9. The function of the relief valve is to prevent the user from removing the hydraulic system of the transplanter and failing to manually reverse the reversing valve 3 as required, thereby protecting the entire system.

[0038] The first pipeline 11, the second pipeline 12, and the fourth pipeline 14 of the system are all provided with quick-connect connectors 5, so that users can quickly replace different accessories.

[0039] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A hydraulic system for an automated rapeseed blanket seedling transplanter, characterized in that: include: Gas stations; An oil inlet pipeline, on which a pump is provided, connected to the P port of the reversing valve; a multi-way valve group connected to port A of the reversing valve; a first pipeline connecting the T port of the reversing valve and the T port of the pressure-compensated throttle valve; A second pipeline is connected to the B port of the reversing valve and the P port of the pressure-compensated throttle valve; a third pipeline connecting port A of the pressure-compensated throttle valve and port P of the contour valve; The A port of the profiling valve is connected to the oil station and the T port of the profiling valve respectively through a fourth pipeline; When the reversing valve is not working, the pressure oil enters the multi-way valve group through the oil inlet pipeline to ensure the normal operation of the tractor hydraulic system; When the reversing valve is working, the pressure oil enters the pressure-compensated throttle valve through the oil inlet line and the second line, and the pressure-compensated throttle valve distributes the pressure oil to the first line and the third line. The pressure oil enters the multi-way valve group through the first line and the reversing valve to ensure the normal operation of the tractor hydraulic system. The pressure oil enters the contour valve through the third line to ensure the normal operation of the transplanter.

2. The hydraulic system of the automated rapeseed blanket seedling transplanter according to claim 1, characterized in that: The pressure-compensated throttle valve includes a pressure-stabilizing valve and a first relief valve that are arranged in parallel.

3. The hydraulic system of the automated rapeseed blanket seedling transplanter according to claim 1, characterized in that: The first pipeline, the second pipeline and the fourth pipeline are all provided with quick-connect connectors.

4. The hydraulic system of the automated rapeseed blanket seedling transplanter according to claim 1, characterized in that: Also includes: a fifth pipeline connected to port B of the reversing valve and the oil station; A first overflow valve is provided on the fifth pipeline.

5. The hydraulic system of the automated rapeseed blanket seedling transplanter according to claim 1, characterized in that: The reversing valve is a two-position four-way reversing valve.

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