Profiling working device

Abstract

The utility model discloses a profiling working device which comprises a four-connecting-rod lifting mechanism, the four-connecting-rod lifting mechanism comprises a first vertical rod, an upper connecting rod, a second vertical rod and a lower connecting rod which are sequentially hinged end to end, the first vertical rod is used for being installed on an agricultural vehicle, and the second vertical rod is used for installing a tool; a hydraulic telescoping cylinder; the main control valve is provided with a main control oil inlet I, a main control oil return port, a main control port I and a main control port II, the main control oil inlet I is used for being connected with an oil supply pipeline, the main control oil return port is used for being connected with an oil return pipeline, the main control valve is provided with a floating station, and the main control oil inlet I is closed at the floating station; the main control port I is connected with the main control port II and is connected with the main control oil return port; the two ends of the hydraulic telescopic cylinder are connected with the four-connecting-rod lifting mechanism, and the first master control port and the second master control port are connected with the two hydraulic control ends of the hydraulic telescopic cylinder respectively. Profiling work is achieved, and the structural layout is not limited by mechanical transmission.

Description

Technical Field

[0001] The utility model relates to the field of agricultural automation production, in particular to a profiling working device. Background Art

[0002] The traditional way to harvest sugarcane is to cut it on the ground. However, this harvesting method leaves sugarcane stumps on the ground, which reduces the yield of sugar cane. In addition, the cuts are uneven and easily broken, which increases harvesting losses and affects the germination rate of the next season. Therefore, the currently proposed harvesting method is to cut the sugarcane underground, that is, to harvest in the ground. However, sugarcane is planted on ridges. Due to the influence of various factors such as terrain, crop growth, and rain erosion, the ridge height is usually uneven, especially in the hilly areas in the south, such as Guangxi and Yunnan, which are major sugarcane-growing provinces. The fields themselves are uneven, and there are often heavy rains and strong winds, and the ridge height is obviously uneven. When harvesting in the ground, the uneven ridge height will make it impossible to harvest in the ground continuously, resulting in harvesting losses. Summary of the invention

[0003] The utility model aims to provide a profiling working device, which realizes profiling work and has a structural layout without mechanical transmission restrictions.

[0004] A contour-copying working device comprises: a four-link lifting mechanism, the four-link lifting mechanism comprises a first vertical rod, an upper connecting rod, a second vertical rod, and a lower connecting rod which are hinged end to end in sequence, the first vertical rod is used to be installed on an agricultural vehicle, and the second vertical rod is used to install tools; a hydraulic telescopic cylinder; a main control valve, the main control valve is provided with a main control oil inlet port 1, a main control oil return port, a main control port 1, and a main control port 2, the main control oil inlet port 1 is used to be connected to an oil supply pipeline, the main control oil return port is used to be connected to an oil return pipeline, the main control valve is provided with a floating position, when in the floating position, the main control oil inlet port 1 is closed, the main control port 1 is connected to the main control port 2 and to the main control oil return port; wherein, both ends of the hydraulic telescopic cylinder are connected to the four-link lifting mechanism, the main control port 1 and the main control port 2 are respectively connected to two hydraulic control ends of the hydraulic telescopic cylinder.

[0005] In one embodiment, one end of the hydraulic telescopic cylinder is installed on the first vertical rod, and the other end is installed on the second vertical rod, and the connection point is the hinge between the upper connecting rod and the second vertical rod.

[0006] In one of the embodiments, the main control valve is also provided with a main control port three and a main control oil inlet two. The main control port three is used to connect with the hydraulic tool, and the main control oil inlet two is used to connect with the oil supply pipeline. When in the floating position, the main control oil inlet two is connected with the main control port three.

[0007] In one of the embodiments, the main control valve is further provided with an ascending position and a descending position; in the ascending position, the main control oil inlet port 1 is connected to the main control control port 1, the main control oil return port is connected to the main control control port 2, and the main control oil inlet port 2 and the main control control port 3 are disconnected; in the descending position, the main control oil inlet port 1 is connected to the main control control port 2, the main control oil return port is connected to the main control control port 1, and the main control oil inlet port 2 and the main control control port 3 are disconnected.

[0008] In one of the embodiments, the main control valve is also provided with a fixed position, in which the main control oil inlet port 2 is connected to the main control control port 3, and the main control oil inlet port 1, the main control oil return port, the main control control port 1, and the main control control port 2 are disconnected.

[0009] In one of the embodiments, the contour-matching working device also includes a sub-control valve, which is provided with a sub-control oil inlet port 1, a sub-control oil return port, a sub-control control port 1, and a sub-control control port 2. The sub-control oil inlet port 1 is connected to the main control port 3, the sub-control oil return port is used to connect to the oil return pipeline, and the sub-control control port 1 and the sub-control control port 2 are used to connect to the hydraulic tool.

[0010] In one of the embodiments, the sub-control valve also includes a sub-control oil inlet port 2 and a sub-control control port 3, the sub-control oil inlet port 2 is connected to the main control control port 3, and the sub-control valve is provided with a stop position; in the stop position, the sub-control oil inlet port 2 is connected to the sub-control control port 3, the sub-control oil inlet port 1 is disconnected, and the sub-control control port 1 is connected to the sub-control control port 2 and then connected to the sub-control oil return port.

[0011] In one of the embodiments, the sub-control valve is further provided with a first working station and a second working station; in the first working station, the sub-control oil inlet port two and the sub-control control port three are disconnected, the sub-control oil inlet port one is connected to the sub-control control port one, and the sub-control oil return port is connected to the sub-control control port two; in the second working station, the sub-control oil inlet port two and the sub-control control port three are disconnected, the sub-control oil inlet port one is connected to the sub-control control port two, and the sub-control oil return port is connected to the sub-control control port one.

[0012] In one of the embodiments, the contouring working device further comprises a cutting table, wherein the cutting table is mounted on the second vertical rod, and the cutting table is provided with a rotatable blade, wherein a rotating surface of the blade forms an acute angle with respect to a horizontal plane.

[0013] In one embodiment, the contour working device further comprises a rotating seat, and the first vertical rod is rotatably mounted on the rotating seat.

[0014] Compared with the prior art, the advantages of the profiling working device of the utility model are:

[0015] 1. The four-link lifting mechanism has the freedom to move up and down. When the hydraulic telescopic cylinder is in the floating position, the hydraulic pressure is released. Under the action of gravity, the tool falls naturally. When it encounters an undulating ground, it can rise and fall with the ground to achieve contour work.

[0016] 2. The four-link lifting mechanism can be installed with hydraulic tools. Both the hydraulic tools and the four-link lifting mechanism are powered by the same hydraulic station. Through the control of the main control valve, the hydraulic station can provide power for both the cutting table and the four-link lifting mechanism, thus reducing the additional drive mechanism and the overall volume.

[0017] 3. The utility model adopts a four-link lifting mechanism. No matter the cutting table is raised or lowered, or it floats up and down, the rotating surface of the blade maintains an acute inclination angle, which can ensure continuous ploughing into the soil.

[0018] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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.

[0020] Figure 1 It is a structural schematic diagram of the contour working device of the utility model embodiment installed on a trailer;

[0021] Figure 2 It is a structural schematic diagram of the profiling working device in the embodiment of the utility model in the rising state;

[0022] Figure 3 It is a structural schematic diagram of the profiling working device in the embodiment of the utility model in the descending state;

[0023] Figure 4 It is a structural schematic diagram of the main control valve of the profiling working device of the embodiment of the utility model at a fixed position;

[0024] Figure 5 It is a structural schematic diagram of the main control valve of the profiling working device of the embodiment of the utility model at the rising position;

[0025] Figure 6 It is a structural schematic diagram of the main control valve of the profiling working device of the embodiment of the utility model at the descending position;

[0026] Figure 7 It is a structural schematic diagram of the main control valve of the profiling working device in the embodiment of the utility model in the floating position.

[0027] Among them, 100, four-link lifting mechanism, 110, first vertical rod, 120, upper connecting rod, 130, second vertical rod, 140, lower connecting rod, 150, hydraulic telescopic cylinder, 200, trailer, 300, main control valve, 310, main control check valve, 400, sub-control valve, 410, sub-control check valve, 510, oil supply pipeline, 520, oil return pipeline, 530, overflow valve, 610, hydraulic station, 620, hydraulic tool, 621, blade, 630, power source, 700, rotating seat;

[0028] P1, main control oil inlet port 1, P2, main control oil inlet port 2, T, main control oil return port, A, main control port 1, B, main control port 2, C, main control port 3;

[0029] p1, sub-control oil inlet one, p2, sub-control oil inlet two, t, sub-control oil return port, a, sub-control port one, b, sub-control port two, c, sub-control port three. DETAILED DESCRIPTION

[0030] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-3As shown, the trailer 620 is equipped with a power source 630, a hydraulic station 610, and a contouring working device. The power source 630 provides power for the traveling of the trailer 620 and the hydraulic station 610, and the hydraulic station 610 provides driving force for the contouring working device.

[0034] The profiling working device comprises: a four-link lifting mechanism 100, which comprises a first vertical rod 110, an upper connecting rod 120, a second vertical rod 130, and a lower connecting rod 140 which are hinged in sequence, wherein the first vertical rod 110 is used to be installed on an agricultural vehicle, and the second vertical rod 130 is used to install tools; a hydraulic telescopic cylinder 150; a main control valve 300, wherein the main control valve 300 is provided with a main control oil inlet port 1 P1, a main control oil return port T, a main control port 1 A, and a main control port 2 B, wherein the main control oil inlet port 1 P1 is used to be connected to an oil supply pipeline 510, and the main control oil return port T is used to be connected to an oil return pipeline 520, and the main control valve 300 is provided with a floating position. When in the floating position, Figure 7 As shown, the main control oil inlet port 1 P1 is closed, the main control port 1 A is connected to the main control port 2 B and is connected to the main control oil return port T; wherein, both ends of the hydraulic telescopic cylinder 150 are connected to the four-link lifting mechanism 100, and the main control port 1 A and the main control port 2 B are respectively connected to the two hydraulic control ends of the hydraulic telescopic cylinder 150.

[0035] The two ends of the hydraulic telescopic cylinder 150 are connected to the four-link lifting mechanism 100 to drive the second vertical rod 130 to rise or fall. The first vertical rod 110, the upper connecting rod 120, the second vertical rod 130, and the lower connecting rod 140 form a parallelogram, and the two ends of the hydraulic telescopic cylinder 150 are connected to the four-link lifting mechanism 100 in a triangle. The triangle connection means that the hydraulic telescopic cylinder 150 and the two rods in the four-link lifting mechanism 100 basically form a triangle. Only when the triangle is basically formed can the second vertical rod 130 be driven to rise or fall when the hydraulic telescopic cylinder 150 is lifted or retracted. The connection method includes connecting with the rod and connecting with the hinge of the two rods. For example, in this embodiment, one end of the hydraulic telescopic cylinder 150 is installed in the middle of the first vertical rod 110, and the other end is installed in the second vertical rod 130. The connection is the hinge of the upper connecting rod 120 and the second vertical rod 130. The upper connecting rod 120, the hydraulic telescopic cylinder 150, and the upper half of the first vertical rod 110 basically form a triangle. When the hydraulic telescopic cylinder 150 is lifted, the second vertical rod 130 is raised. When the hydraulic telescopic cylinder 150 is retracted, the second vertical rod 130 is lowered. When the hydraulic telescopic cylinder 150 is in the floating position, the hydraulic pressure is released. Under the action of gravity, the tool naturally falls. When it encounters an undulating ground, it can follow the undulations of the ground to achieve contour work. In this embodiment, the tool is a hydraulic tool 620, which is a cutter table with a hydraulic motor. The cutter table is installed on the second vertical rod 130. The cutter table is provided with a rotatable blade. The rotating surface of the blade has an acute angle relative to the horizontal plane, that is, Figure 3The angle α shown is shown. When in the floating position, the hydraulic tool 620 floats with the undulations of the terrain. The four-link lifting mechanism 100 has the freedom to move up and down. The hydraulic tool 620 falls under its own gravity, and the inclined blade 621 penetrates into the ground to achieve in-ground harvesting. The residual hydraulic oil in the hydraulic telescopic cylinder 150 provides damping buffer for floating, so that the hydraulic tool 620 is close to the ground and always maintains in-ground harvesting.

[0036] In this embodiment, the main control valve 300 is provided with a main control port 3C and a main control oil inlet 2P2. The main control port 3C is used to connect with the hydraulic tool 620, and the main control oil inlet 2P2 is used to connect with the oil supply pipeline 510. When in the floating position, Figure 7 As shown, the main control oil inlet port 2 P2 is connected to the main control port 3 C.

[0037] The main control valve 300 is also provided with an ascending position and a descending position; Figure 5 As shown, the main control oil inlet port 1 P1 is connected to the main control port 1 A, the main control oil return port T is connected to the main control port 2 B, the main control oil inlet port 2 P2 and the main control port 3 C are disconnected; at the lowering position, such as Figure 6 As shown, the main control oil inlet port 1 P1 is connected to the main control port 2 B, the main control oil return port T is connected to the main control port 1 A, and the main control oil inlet port 2 P2 and the main control port 3 C are disconnected. In this embodiment, the main control port 1 A is connected to the lifting control end of the hydraulic telescopic cylinder 150, and the main control port 2 B is connected to the lowering control end of the hydraulic telescopic cylinder 150. The rising station is used to control the lifting of the hydraulic telescopic cylinder 150, so that the second vertical rod 130 rises. In this embodiment, the lowering station is used to control the lowering of the hydraulic telescopic cylinder 150, so that the second vertical rod 130 falls.

[0038] The main control valve 300 is also provided with a fixed position. Figure 4 As shown, the main control oil inlet 2 P2 is connected to the main control port 3 C, and the main control oil inlet 1 P1, the main control oil return port T, the main control port 1A, and the main control port 2B are disconnected. In addition to the floating workstation, this embodiment also provides a fixed workstation. At the fixed workstation, the height of the hydraulic tool 620 is fixed, which is suitable for the scenario of fixed height work. At the fixed workstation, the hydraulic oil flows through the main control oil inlet 2 P2 and the main control port 3C to the hydraulic tool 620 to provide driving force. At the fixed workstation, the four-link lifting mechanism 100 is fixed and the hydraulic tool 620 can work normally. Figure 4 As shown, the ascending position, the fixed position, the descending position, and the floating position of the main control valve 300 are arranged in sequence to avoid interference.

[0039] The contour-copying working device also includes a sub-control valve 400, which is provided with a sub-control oil inlet port 1 p1, a sub-control oil return port t, a sub-control control port 1 a, and a sub-control control port 2 b. The sub-control oil inlet port 1 p1 is connected to the main control port 3 C, the sub-control oil return port t is used to connect to the oil return pipeline 520, and the sub-control control port 1 a and the sub-control control port 2 b are used to connect to the hydraulic tool 620.

[0040] The sub-control valve 400 also includes a sub-control oil inlet port 2 p2 and a sub-control control port 3 c. The sub-control oil inlet port 2 p2 is connected to the main control port 3 C. The sub-control valve 400 is provided with a stop position. Figure 7 As shown, the sub-control oil inlet port 2 p2 is connected to the sub-control control port 3 c, the sub-control oil inlet port 1 p1 is disconnected, the sub-control control port 1 a is connected to the sub-control control port 2 b and then connected to the sub-control oil return port t. At the stop position, the cutter table stops rotating, but the hydraulic oil is allowed to pass through the sub-control oil inlet port 2 p2 and the sub-control control port 3 c, which does not affect the smooth flow of the hydraulic circuit or the control of the main control valve 300 on the hydraulic telescopic cylinder 150.

[0041] The sub-control valve 400 is also provided with a first working position and a second working position; Figure 6 As shown, the hydraulic motor used to drive the cutting table rotates forward, the sub-control oil inlet port 2 p2 and the sub-control port 3 c are disconnected, the sub-control oil inlet port 1 p1 is connected to the sub-control port 1 a, and the sub-control oil return port t is connected to the sub-control port 2 b; at the second working position, as shown Figure 4 As shown, the hydraulic motor used to drive the cutting table is reversed, the sub-control oil inlet port 2 p2 and the sub-control control port 3 c are disconnected, the sub-control oil inlet port 1 p1 is connected to the sub-control control port 2 b, and the sub-control oil return port t is connected to the sub-control control port 1 a.

[0042] The contouring working device also includes an oil supply pipeline 510 and an oil return pipeline 520. The main control oil inlet port P1 is connected to the oil supply pipeline 510 through a main control one-way valve 310, the sub-control oil inlet port P1 is connected to the main control port C through a sub-control one-way valve 410, the main control oil inlet port P2 is connected to the oil supply pipeline 510, the main control oil return port T, the sub-control oil return port T, and the sub-control port C are connected to the oil return pipeline 520, and an overflow valve 530 is provided between the oil supply pipeline 510 and the oil return pipeline 520.

[0043] In this embodiment, the tool installed on the contour working device is a hydraulic tool 620, which is a cutting table driven by a hydraulic motor. The hydraulic tool 620 and the four-link lifting mechanism 100 are both provided with hydraulic power by the same hydraulic station 610. Through the control of the main control valve 300, the hydraulic station 610 can provide power for both the hydraulic tool 620 and the four-link lifting mechanism 100, thereby reducing the additional driving mechanism and the overall volume.

[0044] In this embodiment, the hydraulic tool 620 is a cutter table, but it is not limited to this embodiment, and other hydraulic tools can also be installed to perform profiling work.

[0045] In this embodiment, the rotation plane of the blade 621 has an acute angle relative to the horizontal plane, which means that when the contour working device of the utility model is installed on the trailer 620, the rotation plane of the blade is inclined downward at an acute angle in the direction of the vehicle, such as Figure 3 As shown in the inclination angle α, and because the utility model adopts a four-link lifting mechanism 100, no matter the cutter table rises, falls, or floats up and down, the rotating surface of the blade 621 maintains an acute inclination angle, which can ensure continuous ploughing.

[0046] The contouring working device of this embodiment further includes a rotating seat 700, and the first vertical rod 110 is rotatably mounted on the rotating seat 700. The rotating seat 700 is used to be mounted on the trailer 200. The four-link lifting mechanism 100 can be raised and lowered in the up and down directions, and can also be rotated in the left and right directions relative to the rotating seat 700. In this way, the hydraulic tool 620 can swing up and down and left and right at a large angle relative to the trailer 620, realizing contouring work at multiple angles and directions, and adopts hydraulic drive, and the structural layout has no mechanical transmission restrictions, which is conducive to the maintenance and maintenance of the working device.

[0047] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A profiling working device, characterized in that: include: A four-link lifting mechanism, the four-link lifting mechanism comprising a first vertical rod, an upper connecting rod, a second vertical rod, and a lower connecting rod which are hinged end to end in sequence, the first vertical rod is used to be installed on an agricultural vehicle, and the second vertical rod is used to install tools; Hydraulic telescopic cylinder; A main control valve, wherein the main control valve is provided with a main control oil inlet port 1, a main control oil return port, a main control port 1, and a main control port 2. The main control oil inlet port 1 is used to be connected to an oil supply pipeline, and the main control oil return port is used to be connected to an oil return pipeline. The main control valve is provided with a floating position. When in the floating position, the main control oil inlet port 1 is closed, and the main control port 1 is connected to the main control port 2 and to the main control oil return port; Wherein, both ends of the hydraulic telescopic cylinder are connected to the four-link lifting mechanism, and the main control port 1 and the main control port 2 are respectively connected to the two hydraulic control ends of the hydraulic telescopic cylinder.

2. A profiling working device according to claim 1, characterized in that: One end of the hydraulic telescopic cylinder is installed on the first vertical rod, and the other end is installed on the second vertical rod. The connection point is the hinge point of the upper connecting rod and the second vertical rod.

3. A profiling working device according to claim 1, characterized in that: The main control valve is also provided with a main control port three and a main control oil inlet two. The main control port three is used to connect with the hydraulic tool, and the main control oil inlet two is used to connect with the oil supply pipeline. When in the floating position, the main control oil inlet two is connected with the main control port three.

4. A profiling working device according to claim 3, characterized in that: The main control valve is also provided with an ascending position and a descending position; At the ascending position, the main control oil inlet port 1 is connected to the main control port 1, the main control oil return port is connected to the main control port 2, and the main control oil inlet port 2 and the main control port 3 are disconnected; At the descending position, the main control oil inlet port 1 is connected to the main control port 2, the main control oil return port is connected to the main control port 1, and the main control oil inlet port 2 and the main control port 3 are disconnected.

5. A profiling working device according to claim 3, characterized in that: The main control valve is also provided with a fixed position, in which the main control oil inlet port 2 is connected to the main control control port 3, and the main control oil inlet port 1, the main control oil return port, the main control control port 1, and the main control control port 2 are disconnected.

6. A profiling working device according to claim 5, characterized in that: It also includes a sub-control valve, which is provided with a sub-control oil inlet port 1, a sub-control oil return port, a sub-control control port 1, and a sub-control control port 2. The sub-control oil inlet port 1 is connected to the main control port 3, the sub-control oil return port is used to connect to the oil return pipeline, and the sub-control control port 1 and the sub-control control port 2 are used to connect to the hydraulic tool.

7. A profiling working device according to claim 6, characterized in that: The sub-control valve further comprises a sub-control oil inlet port 2 and a sub-control control port 3, wherein the sub-control oil inlet port 2 is connected to the main control control port 3, and the sub-control valve is provided with a stop position; At the stop position, the sub-control oil inlet port 2 is connected to the sub-control control port 3, the sub-control oil inlet port 1 is disconnected, and the sub-control control port 1 is connected to the sub-control control port 2 and then connected to the sub-control oil return port.

8. A profiling working device according to claim 7, characterized in that: The sub-control valve is also provided with a first working position and a second working position; At the first working station, the sub-control oil inlet port 2 and the sub-control control port 3 are disconnected, the sub-control oil inlet port 1 is connected to the sub-control control port 1, and the sub-control oil return port is connected to the sub-control control port 2; At the second working station, the sub-control oil inlet port 2 and the sub-control control port 3 are disconnected, the sub-control oil inlet port 1 is connected to the sub-control control port 2, and the sub-control oil return port is connected to the sub-control control port 1.

9. A profiling working device according to any one of claims 1 to 8, characterized in that: It also includes a cutting table, which is installed on the second vertical rod. The cutting table is provided with a rotatable blade, and the rotating surface of the blade has an acute angle relative to the horizontal plane.

10. A profiling working device according to claim 9, characterized in that: It also includes a rotating base, and the first vertical rod is rotatably mounted on the rotating base.

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