Hydraulic system of sugarcane pile cutting machine

Abstract

The utility model provides a hydraulic system of a sugarcane pile cutting machine. The hydraulic system comprises a sugarcane pile cutting machine body, a walking hydraulic system, a working device hydraulic system and an auxiliary device hydraulic system. The sugarcane pile cutting machine body comprises a front conveying part, a rear conveying part, a material box, a supporting and falling device, a header, a root cutting device, a supporting and falling device oil cylinder, a hopper lifting oil cylinder and a material door opening and closing oil cylinder. The hydraulic system of the sugarcane pile cutting machine can stably and efficiently complete the functions of walking, harvesting and the like of the sugarcane machine, is mature and stable, is sensitive in action response, can efficiently complete action control and sugarcane harvesting, adopts semi-rigid connection in front and back conveying, does not need to additionally add a synchronizing device, and is simple in structure and convenient to operate. The sugarcane pile cutting machine can slide relatively to prevent parts from being damaged during overload, one-key unloading of the material box can be achieved, operation steps are reduced, time is saved, and the sugarcane pile cutting machine is multiple in working parts, complex in structure and movement, stable, reliable, good in economical efficiency and high in efficiency.

Description

Technical Field

[0001] The utility model relates to the field of sugarcane buncher, in particular to a hydraulic system of a sugarcane buncher. Background Art

[0002] Sugarcane is the main cash crop used to extract sugar. After harvesting, the sugarcane is taken to the sugar factory for extraction of sugar. After the sugarcane is taken to the sugar factory, it will be required to have a certain storage period. During the storage period, the sugarcane is required not to deteriorate. Among the existing whole-stalk and cut-off harvesting methods, the whole-stalk sugarcane has a complete outer layer, which is most conducive to storage.

[0003] At present, in order to meet the requirements of sugar factories, sugarcane harvesting in my country is still mainly done manually, mainly by manual felling and loading, and some manual felling and mechanical loading methods exist. There are problems of high labor intensity, low harvesting efficiency, and high labor costs, which result in reduced profits from growing sugarcane and lower planting rates. Some sugarcane is harvested by cutting-off sugarcane harvesters. When harvesting, the sugarcane is harvested into sections, and there are many cuts on the sugarcane, which is not conducive to preservation. After being sent to the sugar factory, the sugarcane must be squeezed quickly. Although the cutting-off sugarcane harvester has high harvesting efficiency and low harvesting cost, the harvested sugarcane cannot be stored for a long time and cannot meet the requirements of the sugar factory. This is also the main reason why the mechanical harvesting rate of sugarcane is not high. In summary, the market currently promotes the partial harvesting of sugarcane. After the whole sugarcane is harvested, it is piled in the field and then transported away for cleaning or manual processing. This can not only improve the efficiency of sugarcane harvesting and reduce the labor intensity of people, but also reduce the cost of sugarcane planting, increase the income of growers, and meet the requirements of sugar factories. The sugarcane harvester and stacker is a machine that completes the harvesting and stacking of sugarcane. During harvesting, the sugarcane is cut from the root and sent to the material box through the conveyor. When the material box is full, the sugarcane is dumped on the ground to form a sugarcane pile. During the harvesting process, only the dead leaves and tips of the sugarcane are basically processed to ensure the integrity of the sugarcane skin, with less harvesting loss and convenient storage.

[0004] Since the sugarcane harvester has many working parts and complex structure and movement, hydraulic control and drive are used to achieve different operating actions. However, the existing hydraulic system of the sugarcane harvester is unstable, not sensitive enough, has low working efficiency, many operating steps, and complex structure and movement. Utility Model Content

[0005] The utility model aims to provide a sugarcane cutter and buncher hydraulic system to overcome the above problems or at least partially solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is specifically implemented as follows:

[0007] The utility model provides a sugarcane buncher hydraulic system, comprising a sugarcane buncher body, a travel hydraulic system, a working device hydraulic system and an auxiliary device hydraulic system;

[0008] The sugarcane buncher body includes a front conveyor, a rear conveyor, a material box, a tipping device, a cutting platform, a root cutting device, a tipping device cylinder, a hopper lifting cylinder and a material door opening and closing cylinder;

[0009] The working device hydraulic system includes a duplex pump, a first reversing valve group, a second reversing valve group, a third reversing valve group, a first working motor, a second working motor, a third working motor, a fourth working motor, a fifth working motor, a sixth working motor, a seventh working motor, an eighth working motor, a ninth working motor and a bypass valve. The working device hydraulic system is driven by the first working oil port P1 and the second working oil port P2 of the duplex pump respectively. The duplex pump is supplied with oil by the hydraulic oil tank. The first working oil port P1 of the duplex pump controls the operation of the first working motor, the second working motor, the third working motor, the fourth working motor, the fifth working motor and the sixth working motor through the first reversing valve group. The first working motor, the third working motor, the fifth working motor and the sixth working motor are controlled by the hydraulic oil tank. The motor is connected in series with the second working motor, the fourth working motor and the sixth working motor and then works in parallel. The first reversing valve group sets the maximum working pressure of the working system of the first working oil port P1 of the dual pump and controls the rotation direction of the motor. The first working motor, the second working motor, the third working motor, the fourth working motor, the fifth working motor and the sixth working motor can all realize forward and reverse rotation. The first working motor and the second working motor are installed on the cutter disc of the root cutting device, the third working motor and the fourth working motor are installed on the driving wheel axle of the front conveyor belt, and the fifth working motor and the sixth working motor are installed on the driving wheel axle of the rear conveyor belt. A bypass valve is provided at the outlet of the first working oil port P1 of the dual pump, which is directly connected to the oil tank;

[0010] The second working oil port P2 of the dual pump controls the operation of the seventh working motor, the eighth working motor and the ninth working motor through the second reversing valve group and the third reversing valve group. The second reversing valve group sets the maximum working pressure of the working system of the second working oil port P2 of the dual pump and controls the rotation direction of the seventh working motor, the eighth working motor and the ninth working motor. The seventh working motor, the eighth working motor and the ninth working motor can all realize forward and reverse rotation. The seventh working motor drives the conveyor belt to rotate and assists in transporting the sugarcane to rise. The eighth working motor and the ninth working motor are connected in series to drive the supporting device at the front of the cutting platform.

[0011] As a further solution of the utility model, the travel hydraulic system is driven by a hydraulic speed-changing transmission device of model 45HST, and the driving wheel drives the travel crawler to make the machine move forward and backward.

[0012] As a further solution of the utility model, the auxiliary device hydraulic system includes an auxiliary pump, a manual reversing valve, an integrated valve, a sequence valve and a hydraulic cylinder. The oil of the auxiliary pump is supplied to the manual reversing valve and the integrated valve. The integrated valve controls the steering of the stacker and the machine cutting table cylinder. The material box is used for lifting the cylinder and the material door opening and closing cylinder, and the sequence of their actions is controlled by the sequence valve. One line of hydraulic oil realizes two sets of actions of lifting and lowering the material box and opening and closing the material door.

[0013] As a further solution of the utility model, the left and right parts of the front conveying conveyor belt and the rear conveying conveyor belt are tightly combined and have a long combined length, and synchronous transmission can be achieved during the working process by relying on the friction between them.

[0014] The utility model provides a hydraulic system for a sugarcane harvester and buncher, which has the following beneficial effects:

[0015] 1. The hydraulic system of the utility model is composed of hydraulic parts such as a working pump, HST, hydraulic control valve, and working motor, and can stably and efficiently complete functions such as walking and harvesting of the sugarcane machine.

[0016] 2. The hydraulic system of the utility model is relatively mature and stable, with sensitive action response, and can efficiently complete action control and sugarcane harvesting.

[0017] 3. The front and rear conveyances of the hydraulic system of the utility model adopt semi-rigid connection, which does not require additional synchronization devices, and can slide relative to each other in case of overload to prevent component damage.

[0018] 4. The hydraulic system of the utility model can realize one-key unloading of the material box, reduce the operation steps, and save time. The sugarcane harvester has many working parts and complex structure and movement.

[0019] 5. The hydraulic system of the utility model is stable, reliable, economical and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The utility model is a schematic diagram of the overall side structure of the sugarcane harvester and buncher body.

[0022] Figure 2 The utility model is a schematic diagram of the overall top view of the sugarcane harvester and buncher body.

[0023] Figure 3It is the principle diagram of the hydraulic system of the working device and the principle diagram of the hydraulic system of the auxiliary device in the utility model.

[0024] Figure 4 This is a schematic diagram of the hydraulic system of the working device in the utility model.

[0025] Figure 5 This is a schematic diagram of the hydraulic system of the auxiliary device in the utility model.

[0026] Figure 6 This is the schematic diagram of the walking hydraulic system in the utility model.

[0027] In the figure: 1. front conveying; 2. rear conveying; 3. material box; 4. supporting device; 5. cutting table; 6. root cutting device; 7. supporting device cylinder; 8. hopper lifting cylinder; 9. material door opening and closing cylinder; 10. duplex pump; 11. first reversing valve group; 12. second reversing valve group; 13. third reversing valve group; 14. first working motor; 15. second working motor; 16. third working motor; 17. fourth working motor; 18. fifth working motor; 19. sixth working motor; 20. seventh working motor; 21. eighth working motor; 22. ninth working motor; 23. bypass valve; 24. auxiliary pump; 25. manual reversing valve; 26. integrated valve; 27. sequence valve. DETAILED DESCRIPTION

[0028] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0029] See also Figure 1-6 The utility model provides a sugarcane buncher hydraulic system, including a sugarcane buncher body, a travel hydraulic system, a working device hydraulic system and an auxiliary device hydraulic system;

[0030] The sugarcane buncher body includes a front conveyor 1, a rear conveyor 2, a material box 3, a leaning device 4, a cutting platform 5, a root cutting device 6, a leaning device cylinder 7, a hopper lifting cylinder 8 and a material door opening and closing cylinder 9. The basic structure of the existing machine is not described in detail here.

[0031] (a) The travel hydraulic system is driven by 45HST driving the driving wheel, such as Figure 1 and Figure 6 As shown in the figure, the driving wheel drives the walking track to make the machine move forward and backward.

[0032] (ii) The hydraulic system of the working device is driven by the working oil ports P1 and P2 of the dual pump 10, and the dual pump 10 is supplied with oil by the hydraulic oil tank;

[0033] like Figure 4 As shown, the first working oil port P1 of the dual pump 10 controls the operation of the first working motor 14 to the sixth working motor 19 through the first reversing valve group 11, wherein the first working motor 14, the second working motor 15, the third working motor 16, the fourth working motor 17, the fifth working motor 18, and the sixth working motor 19 are connected in series and then work in parallel. The first reversing valve group 11 sets the maximum working pressure of the working system of the first working oil port P1 of the dual pump 10 and controls the rotation direction of the motor. Each hydraulic motor can realize forward and reverse rotation. The first working motor 14 and the second working motor 15 are installed on the root cutting cutter disc, the third working motor 16 and the fourth working motor 17 are installed on the driving axle of the front conveying belt 1, and the fifth working motor 18 and the sixth working motor 19 are installed on the driving axle of the rear conveying belt 2. The left and right parts of the front conveying belt 1 and the rear conveying belt 2 are tightly combined and have a long combined length. During the working process, synchronous transmission can be achieved by relying on the friction between each other, so that the third working motor 16 and the fourth working motor 17, the fifth working motor 18 and the sixth working motor 19 have the same rotation speed. The first working motor 14 and the second working motor 15 are connected in series with the third working motor 16, the fourth working motor 17, the fifth working motor 18 and the sixth working motor 19 respectively. The flow rate of the series oil circuit is the same (without considering the volumetric efficiency of the hydraulic parts), and their rotation speeds are also the same. The hydraulic motor rotation speeds of various parts of the sugarcane machine during root cutting and transportation are synchronized by the constraints of the two front and rear conveyor belts. This synchronous connection is a semi-rigid connection, which can ensure the consistent rotation speed of the root cutting cutter disc and the conveying components during normal harvesting. When the feed volume is too large, the conveying channel is blocked, and the conveyor belts can slide relative to each other to prevent the conveying components from being damaged due to excessive force. During the harvesting process, in order to adjust the harvesting speed, a bypass valve 23 is set at the outlet of the working pump P1 port to directly connect to the oil tank. When the conveyor belt rotates too fast, a part of the hydraulic oil can be directly discharged back to the oil tank by adjusting the bypass valve 23 to reduce the rotation speed to a suitable range. The use of the bypass valve 23 to adjust the speed will not cause the pressure of the working circuit to decrease while adjusting the speed, affecting the harvesting.

[0034] The second working oil port P2 of the dual pump 10 controls the work of the seventh working motor 20, the eighth working motor 21, and the ninth working motor 22 through the second reversing valve group 12 and the third reversing valve group 13. The second reversing valve group 12 sets the maximum working pressure of the second working oil port P2 working system of the dual pump 10 and controls the rotation direction of the seventh working motor 20, the eighth working motor 21, and the ninth working motor 22. Each hydraulic motor can realize forward and reverse rotation, among which the seventh working motor 20 drives the conveyor belt to rotate and assists in the transportation of sugarcane. The eighth working motor 21 and the ninth working motor 22 are connected in series to drive the sugarcane supporting device at the front of the cutting platform 5.

[0035] (III) Auxiliary device hydraulic system:

[0036] It is mainly composed of an auxiliary pump 24, a manual reversing valve 25, an integrated valve 26, a sequence valve 27, a hydraulic cylinder, etc. The model of the integrated valve 26 is W2.5DD-05DC-17-01C, which is provided by Jiangsu Zhenji Machinery Manufacturing Co., Ltd.

[0037] like Figure 5 As shown, the oil of the auxiliary pump 24 is supplied to the manual reversing valve 25 and the integrated valve 26. The integrated valve 26 controls the steering of the stacker and the hydraulic cylinder of the machine cutting platform 5, the hydraulic cylinder of the material box 3 lifting cylinder and the hydraulic cylinder 9 for opening and closing the material door. The action sequence of the hydraulic cylinder of the material box 3 lifting cylinder and the hydraulic cylinder 9 for opening and closing the material door is controlled by the sequence valve 27, and the two actions of lifting and lowering the material box 3 and opening and closing the material door are realized by one hydraulic oil.

[0038] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A sugarcane buncher hydraulic system, characterized in that: It includes the sugarcane buncher body, the travel hydraulic system, the working device hydraulic system and the auxiliary device hydraulic system; The sugarcane buncher body comprises a front conveyor (1), a rear conveyor (2), a material box (3), a tipping device (4), a cutting platform (5), a root cutting device (6), a tipping device cylinder (7), a hopper lifting cylinder (8) and a material door opening and closing cylinder (9); The working device hydraulic system comprises a duplex pump (10), a first reversing valve group (11), a second reversing valve group (12), a third reversing valve group (13), a first working motor (14), a second working motor (15), a third working motor (16), a fourth working motor (17), a fifth working motor (18), a sixth working motor (19), a seventh working motor (20), an eighth working motor (21), a ninth working motor (22) and a bypass valve (23). The working device hydraulic system is driven by a first working oil port P1 and a second working oil port P2 of the duplex pump (10), respectively. The duplex pump (10) is supplied with oil by a hydraulic oil tank. The first working oil port P1 of the duplex pump (10) controls the operation of the first working motor (14), the second working motor (15), the third working motor (16), the fourth working motor (17), the fifth working motor (18) and the sixth working motor (19) through the first reversing valve group (11). The first working motor (14), the third working motor (19) and the sixth working motor (19) are driven by the first working oil port P1 and the second working oil port P2 of the duplex pump (10). 6), the fifth working motor (18) is connected in series with the second working motor (15), the fourth working motor (17), and the sixth working motor (19) and then works in parallel; the first reversing valve group (11) sets the maximum working pressure of the working system of the first working oil port P1 of the dual pump (10) and controls the rotation direction of the motor; the first working motor (14), the second working motor (15), the third working motor (16), the fourth working motor (17), the fifth working motor (18), and the sixth working motor (19) can all realize forward and reverse rotation; the first working motor (14) and the second working motor (15) are installed on the cutter head of the root cutting device (6); the third working motor (16) and the fourth working motor (17) are installed on the driving wheel shaft of the front conveyor (1) belt; the fifth working motor (18) and the sixth working motor (19) are installed on the driving wheel shaft of the rear conveyor (2) belt; a bypass valve (23) is provided at the outlet of the first working oil port P1 of the dual pump (10), which is directly connected to the oil tank; The second working oil port P2 of the dual pump (10) controls the operation of the seventh working motor (20), the eighth working motor (21) and the ninth working motor (22) through the second reversing valve group (12) and the third reversing valve group (13). The second reversing valve group (12) sets the maximum working pressure of the working system of the second working oil port P2 of the dual pump (10) and controls the rotation direction of the seventh working motor (20), the eighth working motor (21) and the ninth working motor (22). The seventh working motor (20), the eighth working motor (21) and the ninth working motor (22) can all realize forward and reverse rotation. The seventh working motor (20) drives the conveyor belt to rotate and assists in the transportation of sugarcane. The eighth working motor (21) and the ninth working motor (22) are connected in series to drive the support device (4) at the front of the cutting platform (5).

2. A sugarcane buncher hydraulic system according to claim 1, characterized in that: The travel hydraulic system is driven by a hydraulic speed-changing transmission device of model 45HST, and the driving wheel drives the travel crawler to make the machine move forward and backward.

3. A sugarcane buncher hydraulic system according to claim 1, characterized in that: The auxiliary device hydraulic system comprises an auxiliary pump (24), a manual reversing valve (25), an integrated valve (26), a sequence valve (27) and a hydraulic cylinder. The oil of the auxiliary pump (24) is supplied to the manual reversing valve (25) and the integrated valve (26). The integrated valve (26) controls the steering of the stacker and the hydraulic cylinder of the machine cutting platform (5). The material box (3) is used for the lifting cylinder and the material door opening and closing cylinder (9), and the sequence valve (27) controls the action sequence thereof. The lifting and lowering of the material box (3) and the opening and closing of the material door are realized by one hydraulic oil.

4. A sugarcane buncher hydraulic system according to claim 1, characterized in that: The left and right parts of the conveyor belt of the front conveyor (1) and the conveyor belt of the rear conveyor (2) are tightly connected and have a long connection length, and synchronous transmission can be achieved during the working process by relying on the friction between them.

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