Integrated hydraulic system for multifunctional seed melon harvesting machine

Abstract

The utility model provides an integrated hydraulic system for a multifunctional seed melon harvesting machine, which comprises a transfer case, the first output end of the transfer case is connected with a slurry throwing pump and a header pump, the output end of the slurry throwing pump is connected with a slurry throwing motor group, and the output end of the header pump is connected with a header motor group; the second output end of the transfer case is connected with a walking pump, and the output end of the walking pump is connected with a walking motor. The third output end of the transfer case is connected with a threshing pump and a pushing pump, the output end of the threshing pump is connected with a threshing motor, and the output end of the pushing pump is connected with a pushing motor set. By the adoption of the multi-path power transmission device, output power of the engine is dispersed into multiple paths through the transfer case, the power of each path is converted into hydraulic energy through the hydraulic pumps, and the power is transmitted to the working devices of each path through the hydraulic motor; complex path transmission of power is achieved, noise and vibration are reduced, stability is good, and frequent maintenance and replacement of transmission parts are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of harvesters, in particular to an integrated hydraulic system for a multifunctional seed melon harvester. Background Art

[0002] The seed melon harvesting machinery is suitable for harvesting crops such as seed melons, gourds, and melons. It is equipped with working devices such as picking machines, crushers, separation and cleaning machines, and seed collecting and packing machines. It is an existing technology that can realize functions such as picking, crushing, separation and cleaning, and seed collecting and packing. It has the advantages of high operating efficiency, less melon seed loss, high cleanliness, and less melon seed damage.

[0003] The power take-off port of the melon seed harvester is equipped with a pulley, which transmits the driving force to the first-level transmission shaft through the pulley; the first-level transmission shaft then transmits the driving force to the next level through a chain or belt. After multiple transmissions, the power is finally transmitted to each working device to drive the working device to perform functions such as picking, crushing, separation and cleaning, and seed collection and packaging. Since the power transmission of each working device is entirely achieved through mechanical transmission such as gears, chains, and belts, the melon seed harvester generates greater noise and vibration during operation, and the transmission stability is poor, which reduces the user's comfort; at the same time, transmission parts such as chains and belts require frequent maintenance and replacement, and the maintenance cost is high. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to reduce the working noise and vibration of the seed melon harvesting machine, improve the transmission stability, and avoid the frequent maintenance and replacement of transmission parts.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] The utility model provides an integrated hydraulic system for a multifunctional seed melon harvester, comprising a transfer case, wherein a first output end of the transfer case is connected to a slurry pump and a cutting table pump, the output end of the slurry pump is connected to a slurry motor group, and the output end of the cutting table pump is connected to a cutting table motor group; a second output end of the transfer case is connected to a travel pump, and the output end of the travel pump is connected to a travel motor; a third output end of the transfer case is connected to a threshing pump and a pushing pump, the output end of the threshing pump is connected to the threshing motor, and the output end of the pushing pump is connected to the pushing motor group.

[0007] The beneficial effects of the utility model are:

[0008] By adopting the utility model, the output power of the engine is dispersed into multiple paths through the transfer case, and the power of each path is converted into hydraulic energy through multiple hydraulic pumps, and the hydraulic motor is driven, so that the power can be transmitted to the working devices of each path through the hydraulic motor; the output power of the engine is converted into hydraulic energy, so that the complex path transmission of power is realized, and transmission parts such as gears, chains, and belts are omitted, noise and vibration are reduced, stability is good, and frequent maintenance and replacement of transmission parts are avoided; at the same time, the transmission volume is small, the safety is high, the weight of the whole vehicle is reduced, and the structure is compact.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the paddle motor group includes a first paddle motor and a second paddle motor connected in series, the first paddle motor is connected in parallel to a first sequence valve, and the second paddle motor is connected in parallel to a second sequence valve.

[0011] Two slurry-throwing motors provide power to the left and right slurry-throwing cylinders respectively, and the hydraulic path can be controlled by the first sequence valve and the second sequence valve, so that the left and right slurry-throwing cylinders can work independently.

[0012] Furthermore, the header motor group includes a feeding auger motor and a reverse vine removal motor connected in series with each other; and a first switch valve is also provided at the output end of the header pump.

[0013] The same cutting platform pump is used to provide power for the working device on the cutting platform, and the power on and off of the cutting platform is controlled by the first switch valve. The control is convenient and it is convenient for the user to adjust the on and off of the cutting platform function.

[0014] Furthermore, the output end of the threshing motor is connected to a threshing gearbox, and the output end of the threshing gearbox is connected to a threshing drum.

[0015] It is convenient to control the rotation speed of the threshing drum.

[0016] Furthermore, the pushing motor group includes a first pushing motor and a second pushing motor connected in series, and a second switch valve is also provided at the outlet of the pushing pump.

[0017] The two pushing motors provide power to the left and right pushing augers respectively, and the power on and off of the pushing augers can be controlled by the second switch valve. The control is convenient, and the user is convenient to adjust the on and off of the pushing augers function.

[0018] Furthermore, the slurry pump, the travel pump and the threshing pump are all closed variable displacement pumps.

[0019] The closed variable pump can be a plunger pump with a wide speed regulation range, high precision, fast response speed, good stability and strong adaptability, which is convenient for users to accurately and quickly adjust the speed of the pulping drum, the travel speed and the speed of the threshing drum.

[0020] Furthermore, the second output end of the transfer case is also connected to a tool pump, the output end of the tool pump is connected to a third switch valve, and the outlet of the third switch valve is connected in series with a roller motor and a tool motor.

[0021] It is convenient to provide power for the melon pressing roller and the melon cutting knife on the harvester; the power of the melon pressing roller and the melon cutting knife is controlled by the third switch valve, so that the user can control the opening and closing of the melon cutting function.

[0022] Furthermore, the hydraulic inlet of the roller motor is also provided with a first speed regulating valve, and the pressure relief end of the first speed regulating valve is connected to the hydraulic outlet of the roller motor; the hydraulic inlet of the tool motor is also provided with a second speed regulating valve, and the pressure relief end of the second speed regulating valve is connected to the hydraulic outlet of the tool motor.

[0023] The first speed regulating valve and the second speed regulating valve are pressure relief valves, which are convenient for users to adjust the rotation speeds of the melon pressing roller and the melon cutting knife.

[0024] Furthermore, the outlet of the third switch valve is also connected to a melon seed lifting motor through a branch; the tool pump, cutting platform pump and pushing pump are all open-type quantitative pumps.

[0025] The melon seed lifting motor is used to connect the melon seed elevator to provide power for the melon seed elevator; the open quantitative pump can be a gear pump, which has low cost and is convenient for users to control the opening and closing of the hydraulic passage.

[0026] Furthermore, the transfer case is a four-output transfer case; the fourth output end of the transfer case is also connected to a melon-dividing pump and a fan pump; the output end of the melon-dividing pump is sequentially connected in series with a fourth switch valve, a first melon-dividing motor, a second melon-dividing motor, a lower vine-removing motor and a vine-before-leaving motor, the hydraulic inlet of the vine-before-leaving motor is provided with a third speed regulating valve, and the pressure relief end of the third speed regulating valve is connected to the hydraulic outlet of the vine-before-leaving motor; the output end of the fan pump is sequentially connected in series with a reversing valve and a hydraulic fan.

[0027] It is convenient to provide power for working devices such as the melon divider, the lower vine remover, and the rice beating wheel. Through the fourth switch valve, it is convenient to control the power on and off, and it is convenient for users to adjust the on and off of the functions; the third speed regulating valve can adopt a pressure relief valve, and through the third speed regulating valve, it is convenient to adjust the speed of the rice beating wheel; by adding a fan pump and a hydraulic fan, a cooling air source is provided for the hydraulic system, which is convenient to improve the cooling capacity of the hydraulic system and improve the continuous working capacity of the whole vehicle; through the reversing valve, the speed adjustment and reversal of the heat dissipation hydraulic fan are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model.

[0029] In the accompanying drawings, the technical features represented by the reference numerals are as follows:

[0030] 1-transfer case; 2-pump; 3-cutting table pump; 4-travel pump; 5-travel motor; 6-threshing pump; 7-pushing pump; 8-threshing motor; 9-first paddle motor; 10-second paddle motor; 11-first sequence valve; 12-second sequence valve; 13-feeding auger motor; 14-reverse vine removal motor; 15-first switch valve; 16-threshing gearbox; 17-first pushing motor; 18-second pushing motor; 19- The second switch valve; 20-cutter pump; 21-the third switch valve; 22-roller motor; 23-cutter motor; 24-the first speed regulating valve; 25-the second speed regulating valve; 26-meal seed lifting motor; 27-meal separation pump; 28-fan pump; 29-the fourth switch valve; 30-the first melon separation motor; 31-the second melon separation motor; 32-the lower vine removal motor; 33-the rice seedling beating motor; 34-the third speed regulating valve; 35-the reverse valve; 36-the hydraulic fan. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] This utility model refers to Figure 1 .

[0033] The utility model provides an integrated hydraulic system for a multifunctional seed melon harvester, comprising a transfer case 1, wherein a first output end of the transfer case 1 is connected to a slurry pump 2 and a cutting table pump 3, the output end of the slurry pump 2 is connected to a slurry motor group, and the output end of the cutting table pump 3 is connected to a cutting table motor group; a second output end of the transfer case 1 is connected to a travel pump 4, and the output end of the travel pump 4 is connected to a travel motor 5; a third output end of the transfer case 1 is connected to a threshing pump 6 and a pushing pump 7, the output end of the threshing pump 6 is connected to a threshing motor 8, and the output end of the pushing pump 7 is connected to a pushing motor group.

[0034] principle:

[0035] The above-mentioned pumps are all hydraulic pumps, and the above-mentioned motors are all hydraulic motors.

[0036] When installed on a multifunctional seed melon harvester: the slurry-throwing motor group is connected to the slurry-throwing drum of the harvester to provide power for the slurry-throwing drum; the cutting table motor group is connected to the working equipment on the cutting table of the harvester (such as a feeding auger, a reverse vine remover, etc.) to provide power for the working equipment on the cutting table; the travel motor 5 is connected to the vehicle travel gearbox to provide power for the harvester to travel; the threshing motor 8 is connected to the threshing drum to provide power for the threshing drum; the pushing motor group is connected to the pushing auger to provide power for the pushing auger.

[0037] The input port of the transfer case 1 is connected to the engine, and the output power of the engine is evenly divided and output from each output end to provide power for each hydraulic pump (pump 2, cutting platform pump 3, travel pump 4, threshing pump 6 and push pump 7, etc.); so that each hydraulic pump outputs hydraulic pressure, so that each motor obtains power. Since the power is converted through hydraulic pressure during the cross-space transmission process, most transmission components such as gears, chains, belts, etc. can be omitted, reducing noise and vibration, and having good stability.

[0038] In summary, by adopting the utility model, the output power of the engine is dispersed into multiple paths through the transfer case 1, and the power of each path is converted into hydraulic energy through multiple hydraulic pumps, and the hydraulic motor is driven, so that the power can be transmitted to various working devices through the hydraulic motor; the output power of the engine is converted into hydraulic energy, which realizes the complex path transmission of power, eliminates transmission components such as gears, chains, and belts, reduces noise and vibration, has good stability, and avoids frequent maintenance and replacement of transmission parts; at the same time, the transmission volume is small, the safety is high, the weight of the whole vehicle is reduced, and the structure is compact.

[0039] Furthermore, the paddle motor group includes a first paddle motor 9 and a second paddle motor 10 connected in series. The first paddle motor 9 is connected to a first sequence valve 11 , and the second paddle motor 10 is connected to a second sequence valve 12 .

[0040] Note: The seed melon harvesting machine is provided with a left pulping drum and a right pulping drum, which is the prior art; during installation, the first pulping motor 9 is connected to the left pulping drum, and the second pulping motor 10 is connected to the right pulping drum.

[0041] The two slurry-throwing motors provide power to the left and right slurry-throwing drums respectively, and the hydraulic path can be controlled by the first sequence valve 11 and the second sequence valve 12, so that the left and right slurry-throwing drums can work independently.

[0042] Furthermore, the header motor group includes a feeding auger motor 13 and a reverse vine removal motor 14 which are connected in series with each other; and a first switch valve 15 is also provided at the output end of the header pump 3 .

[0043] Note: The feeding auger motor 13 is used to connect the feeding auger to provide power for the feeding auger of the cutting table; the reverse vine removing motor 14 is connected to the reverse vine removing machine to provide power for the reverse vine removing machine on the cutting table.

[0044] The same cutting platform pump 3 is used to provide power for the working device on the cutting platform, and the power on and off of the cutting platform is controlled by the first switch valve 15, which is convenient to control and convenient for the user to adjust the on and off of the cutting platform function.

[0045] Furthermore, the output end of the threshing motor 8 is connected to a threshing gearbox 16 , and the output end of the threshing gearbox 16 is connected to a threshing drum.

[0046] Preferably, the threshing gearbox 16 is a two-output gearbox, the threshing drum comprises a left threshing drum and a right threshing drum, and the two output ends of the gearbox are respectively connected to the left threshing drum and the right threshing drum.

[0047] It is convenient to control the rotation speed of the threshing drum.

[0048] Furthermore, the pushing motor group includes a first pushing motor 17 and a second pushing motor 18 connected in series, and a second switch valve 19 is also provided at the outlet of the pushing pump 7 .

[0049] Note: The seed melon harvesting machine is provided with a left pushing auger and a right pushing auger, which is the prior art; the first pushing motor 17 is connected to the left pushing auger to provide power for the left pushing auger; the second pushing motor 18 is connected to the right pushing auger to provide power for the right pushing auger.

[0050] The two pushing motors provide power to the left and right pushing augers respectively, and the power on and off of the pushing augers can be controlled by the second switch valve 19, which is convenient to control and convenient for users to adjust the on and off of the pushing augers.

[0051] Furthermore, the slurry pump 2, the travel pump 4 and the threshing pump 6 are all closed variable displacement pumps.

[0052] The closed variable pump can be a plunger pump with a wide speed regulation range, high precision, fast response speed, good stability and strong adaptability, which is convenient for users to accurately and quickly adjust the speed of the pulping drum, the travel speed and the speed of the threshing drum.

[0053] Furthermore, the second output end of the transfer case 1 is also connected to a tool pump 20 , the output end of the tool pump 20 is connected to a third switch valve 21 , and the outlet of the third switch valve 21 is connected in series with a roller motor 22 and a tool motor 23 .

[0054] Note: The melon seed harvesting machine is provided with a melon pressing roller and a melon cutting knife, which is the existing technology; the roller motor 22 is used to connect the melon pressing roller and provide power for the melon pressing roller; the cutter motor 23 is used to connect the melon cutting knife and provide power for the melon cutting knife.

[0055] It is convenient to provide power for the melon pressing roller and melon cutting knife on the harvester; the power of the melon pressing roller and the melon cutting knife is controlled by the third switch valve 21, so that the user can control the opening and closing of the melon cutting function.

[0056] Furthermore, the hydraulic inlet of the roller motor 22 is also provided with a first speed regulating valve 24, and the pressure relief end of the first speed regulating valve 24 is connected to the hydraulic outlet of the roller motor 22; the hydraulic inlet of the tool motor 23 is also provided with a second speed regulating valve 25, and the pressure relief end of the second speed regulating valve 25 is connected to the hydraulic outlet of the tool motor 23.

[0057] The first speed regulating valve 24 and the second speed regulating valve 25 are pressure relief valves, which are convenient for users to adjust the rotation speeds of the melon pressing roller and the melon cutting knife.

[0058] Furthermore, the outlet of the third switch valve 21 is also connected to a melon seed lifting motor 26 through a branch; the tool pump 20, the cutting platform pump 3 and the pushing pump 7 are all open quantitative pumps.

[0059] The melon seed lifting motor 26 is used to connect the melon seed lifting device to provide power for the melon seed lifting device; the open quantitative pump can be a gear pump, which has low cost and is convenient for users to control the opening and closing of the hydraulic passage.

[0060] Furthermore, the transfer case 1 is a four-output transfer case; the fourth output end of the transfer case 1 is also connected to a melon-dividing pump 27 and a fan pump 28; the output end of the melon-dividing pump 27 is sequentially connected in series with a fourth switch valve 29, a first melon-dividing motor 30, a second melon-dividing motor 31, a lower vine removal motor 32 and a rice seedling beating motor 33, and the hydraulic inlet of the rice seedling beating motor 33 is provided with a third speed regulating valve 34, and the pressure relief end of the third speed regulating valve 34 is connected to the hydraulic outlet of the rice seedling beating motor 33; the output end of the fan pump 28 is sequentially connected in series with a reversing valve 35 and a hydraulic fan 36.

[0061] Note: The seed melon harvesting machine is equipped with a left melon separator, a right melon separator, a lower vine remover, and a vine beating wheel, all of which are prior art. The first melon separating motor 30 is connected to the left melon separator to provide power for the left melon separator; the second melon separating motor 31 is connected to the right melon separator to provide power for the right melon separator; the lower vine remover motor 32 is connected to the lower vine remover to provide power for the lower vine remover; the vine beating motor 33 is connected to the vine beating wheel to provide power for the vine beating wheel. As a four-output transfer case, the transfer case 1 has four output terminals, which is common knowledge, namely the first output terminal, the second output terminal, the third output terminal, and the fourth output terminal.

[0062] It is convenient to provide power for working devices such as the melon divider, the lower vine remover, and the rice beating wheel. Through the fourth switch valve 29, it is convenient to control the power on and off, and it is convenient for the user to adjust the on and off of the function; the third speed regulating valve 34 can adopt a pressure relief valve. Through the third speed regulating valve 34, it is convenient to adjust the speed of the rice beating wheel; by adding a fan pump 28 and a hydraulic fan 36, a cooling air source is provided for the hydraulic system, which is convenient to improve the cooling capacity of the hydraulic system and improve the continuous working capacity of the whole vehicle; through the reversing valve 35, the speed adjustment and reversal of the heat dissipation hydraulic fan 36 are realized.

[0063] Preferably, the cutting platform pump 3, the pushing pump 7, the tool pump 20, the melon dividing pump 27 and the fan pump 28 are all open quantitative pumps, which are low in cost and convenient for users to control the opening and closing of each function.

[0064] In the description of the present invention, it should be understood that if there are descriptive terms indicating orientation, direction or positional relationship, such as: "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of understanding the present invention and simplifying the description, and does not indicate or imply that the referred part, element or whole must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0065] In addition, if there are order description terms, such as "first", "second", etc., their purpose in this specification is to facilitate understanding or simplify description. For example, in order to distinguish multiple technical features of the same type or function, but they have to be mentioned separately, this specification may use prefix or suffix order description terms to distinguish them. Therefore, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present utility model, if the terms describing the relative functional relationship of the structures are used, such as "install", "connect", "connect", "fix", etc., they should be understood in a broad sense unless otherwise clearly specified and limited. For example, "install", "connect", "connect", etc. can be a fixed connection, a detachable connection, or an integrated one; can be a mechanical connection or an electrical connection; can be a direct connection or an indirect connection through an intermediate medium, can be the internal connection of two elements or the interaction relationship between two elements; "fix" can be an integrated fixation or a detachable fixation through fasteners; can be a direct fixation or a fixation through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above-mentioned descriptive terms in the present utility model can be understood according to the specific circumstances, the context, the coherence of the context, etc.

[0067] In the present invention, if there are descriptive terms with subsidiary or connecting meanings, for example, a first feature is "on" or "below" a second feature, unless otherwise clearly specified and limited, it should not be understood in a restrictive manner. For example, "on" or "below" may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above descriptive terms in the present invention can be understood according to the specific circumstances, the context, the coherence of the context, etc.

[0068] Furthermore, the first feature being “above”, “above”, and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “below”, “below”, and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments, examples and features of the different embodiments and examples described in this specification without contradiction, and these combinations or combinations shall all fall within the scope summarized by the utility model.

[0070] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. A person skilled in the art can change, modify, replace and modify the above embodiments within the scope of information available from public channels and in combination with the technical inspiration provided by the present application documents.

Claims

1. An integrated hydraulic system for a multifunctional seed melon harvester, characterized in that: The invention comprises a transfer case (1), wherein the first output end of the transfer case (1) is connected to a slurry pump (2) and a cutting platform pump (3), the output end of the slurry pump (2) is connected to a slurry motor group, and the output end of the cutting platform pump (3) is connected to a cutting platform motor group; the second output end of the transfer case (1) is connected to a travel pump (4), and the output end of the travel pump (4) is connected to a travel motor (5); the third output end of the transfer case (1) is connected to a threshing pump (6) and a pushing pump (7), the output end of the threshing pump (6) is connected to a threshing motor (8), and the output end of the pushing pump (7) is connected to a pushing motor group.

2. The integrated hydraulic system for the multifunctional seed melon harvester according to claim 1, characterized in that: The slurry motor group comprises a first slurry motor (9) and a second slurry motor (10) which are connected in series. The first slurry motor (9) is connected to a first sequence valve (11), and the second slurry motor (10) is connected to a second sequence valve (12).

3. The integrated hydraulic system for the multifunctional seed melon harvester according to claim 1, characterized in that: The cutting platform motor group comprises a feeding auger motor (13) and a reverse vine removal motor (14) which are connected in series with each other; the output end of the cutting platform pump (3) is also provided with a first switch valve (15).

4. The integrated hydraulic system for a multifunctional seed melon harvester according to claim 1, characterized in that: The output end of the threshing motor (8) is connected to a threshing gearbox (16), and the output end of the threshing gearbox (16) is connected to a threshing drum.

5. The integrated hydraulic system for the multifunctional seed melon harvester according to claim 1, characterized in that: The pushing motor group comprises a first pushing motor (17) and a second pushing motor (18) which are connected in series with each other, and a second switch valve (19) is also provided at the outlet of the pushing pump (7).

6. The integrated hydraulic system for the multifunctional seed melon harvester according to claim 1, characterized in that: The slurry pump (2), the travel pump (4) and the threshing pump (6) are all closed variable displacement pumps.

7. The integrated hydraulic system for a multifunctional seed melon harvester according to claim 1, characterized in that: The second output end of the transfer case (1) is also connected to a tool pump (20), the output end of the tool pump (20) is connected to a third switch valve (21), and the outlet of the third switch valve (21) is connected in series with a roller motor (22) and a tool motor (23).

8. The integrated hydraulic system for the multifunctional seed melon harvester according to claim 7, characterized in that: The hydraulic inlet of the roller motor (22) is also provided with a first speed regulating valve (24), and the pressure relief end of the first speed regulating valve (24) is connected to the hydraulic outlet of the roller motor (22); the hydraulic inlet of the tool motor (23) is also provided with a second speed regulating valve (25), and the pressure relief end of the second speed regulating valve (25) is connected to the hydraulic outlet of the tool motor (23).

9. The integrated hydraulic system for the multifunctional seed melon harvester according to claim 7, characterized in that: The outlet of the third switch valve (21) is also connected to a melon seed lifting motor (26) through a branch line; the tool pump (20), the cutting platform pump (3) and the pushing pump (7) are all open-type quantitative pumps.

10. The integrated hydraulic system for a multifunctional seed melon harvester according to claim 1, characterized in that: The transfer case (1) is a four-output transfer case; the fourth output end of the transfer case (1) is also connected to a melon-dividing pump (27) and a fan pump (28); the output end of the melon-dividing pump (27) is connected in series with a fourth switch valve (29), a first melon-dividing motor (30), a second melon-dividing motor (31), a lower vine-removing motor (32) and a rice-bedding motor (33); the hydraulic inlet of the rice-bedding motor (33) is provided with a third speed regulating valve (34), and the pressure relief end of the third speed regulating valve (34) is connected to the hydraulic outlet of the rice-bedding motor (33); the output end of the fan pump (28) is connected in series with a reversing valve (35) and a hydraulic fan (36).

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