Rotary tillage device with adjustable tilling depth

Abstract

The invention discloses a tilling depth adjustable rotary tillage device which comprises a straight gear, a rotary tillage cutter shaft, a rotary tillage cutter frame, rotary tillage blades, an oil liquid storage device, a rack, a bevel gear, a bevel gear box, a bevel gear box end cover, a bolt, a nut, a transmission shaft, an oil chamber sealing oil ring, a blade sealing oil ring, an oil inlet, an oil chamber, an oil duct, an oil outlet and a rotary tillage cutter frame oil cavity. The rotary tillage blade is installed in an oil cavity of the rotary tillage blade rest and is sealed through a blade sealing oil ring, the rotary tillage blade rest is welded to the rotary tillage blade shaft, the two ends of the rotary tillage blade shaft are installed on the rack, the right end of the rotary tillage blade shaft is connected with the straight gear through a key, and the left end of the rotary tillage blade shaft is connected with the oil liquid storage device and is sealed through the blade sealing oil ring; the bevel gear box is installed on the transmission shaft, the transmission shaft is installed on the rack, and the overhanging position of the right end of the transmission shaft is connected with the straight gear through a key. The adjustable-depth rotary tillage machine can realize adjustable-depth rotary tillage operation, and is high in working efficiency and low in cost.

Description

Technical Field

[0001] The invention relates to the technical field of rotary tillage planting, and in particular to a rotary tillage device with adjustable tillage depth, which can realize the functions of adjusting tillage depth, rotary tillage and loosening soil before agricultural planting. Background Art

[0002] Rotary tillage is the preparatory work before agricultural planting. Different crops usually have different requirements for tillage depth and soil fragmentation. The effect of rotary tillage involves multiple parameters such as blade overhang length and rotary tillage speed. At present, fixed tillage depth rotary tillage devices are mostly used in agricultural planting. The rotary tillage depth is fixed and cannot meet the tillage depth requirements of different crops at the same time. This provides ideas and directions for designing an adjustable tillage depth rotary tillage device using hydraulic control. Summary of the invention

[0003] In view of the fact that few existing machines can realize the function of variable tillage depth rotary tillage operation, the present invention provides a device that can change the rotary tillage depth by hydraulic control, which has the characteristics of adjustable tillage depth, high working efficiency, simple structure and low cost.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is a rotary tillage device with adjustable tillage depth, including spur gears, a rotary tillage shaft, a rotary tillage blade, an oil storage device, a frame, bevel gears, a bevel gear box, a bevel gear box end cover, bolts, nuts, a transmission shaft, an oil chamber sealing oil ring, a blade sealing oil ring, an oil inlet, an oil chamber, an oil channel, an oil outlet, and an oil chamber of the rotary tillage blade frame, characterized in that: the rotary tillage blade is installed in the oil chamber of the rotary tillage blade frame and is sealed by the blade sealing oil ring, the rotary tillage blade frame is welded to the rotary tillage shaft, both ends of the rotary tillage blade shaft are installed on the frame, the right end thereof is connected to the spur gear by a key, the left end is connected to the oil storage device and is sealed by the blade sealing oil ring, the bevel gear is installed in the bevel gear box, the bevel gear box is installed on the transmission shaft, the transmission shaft is installed on the frame and the right end overhang is connected to the spur gear by a key.

[0005] The adjustable tillage depth rotary tilling device is characterized in that a rotary tiller frame oil chamber is provided in the rotary tiller frame, and the bottom of the rotary tiller frame oil chamber is directly opposite to the circumferential oil outlet provided on the rotary tiller shaft.

[0006] The adjustable tillage depth rotary tilling device is characterized in that the blade sealing oil ring is sleeved in the square groove of the rotary tilling blade and is installed in the oil chamber of the rotary tilling blade holder together with the rotary tilling blade.

[0007] The adjustable tillage depth rotary tillage device is characterized in that four oil passages evenly distributed along the circumferential direction are opened at the left end of the rotary tillage blade shaft, and the oil outlet is connected with the oil passage.

[0008] The adjustable tillage depth rotary tilling device is characterized in that four oil inlets are evenly distributed along the circumference of the oil storage device, the oil storage device is installed at the left end of the rotary tiller shaft with an oil channel and is sealed by an oil chamber sealing oil ring to form an oil chamber.

[0009] The beneficial effects of the present invention are:

[0010] It has a simple structure, low cost and can realize the functions of adjustable tillage depth and adjustable rotary tillage speed, which greatly improves work efficiency, work flexibility and applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0012] Figure 2 It is a schematic diagram of the assembly structure of the bevel gear, bevel gear box, bevel gear box end cover, bolts and nuts of the present invention;

[0013] Figure 3 It is a structural schematic diagram of one side of the oil inlet of the oil storage device of the present invention;

[0014] Figure 4 It is a schematic diagram of the structure of one side of the oil chamber of the oil storage device of the present invention;

[0015] Figure 5 It is a partial structural schematic diagram of the rotary tiller shaft and the oil chamber sealing oil ring of the present invention;

[0016] Figure 6 It is a schematic diagram of the local structure of the rotary tillage blade frame of the present invention;

[0017] Figure 7 It is a schematic diagram of the structure of the rotary tillage blade and the blade sealing oil ring of the present invention.

[0018] As shown in the figure: 1-spur gear, 2-rotary tiller shaft, 3-rotary tiller frame, 4-rotary tiller blade, 5-oil storage, 6-frame, 7-bevel gear, 8-bevel gear box, 9-bevel gear box end cover, 10-bolt, 11-nut, 12-drive shaft, 13-oil chamber sealing oil ring, 14-blade sealing oil ring, 15-oil inlet, 16-oil chamber, 17-oil channel, 18-oil outlet, 19-rotary tiller frame oil chamber. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings.

[0020] like Figure 1A rotary tilling device with adjustable tillage depth includes a spur gear 1, a rotary tilling blade shaft 2, a rotary tilling blade holder 3, a rotary tilling blade 4, an oil storage device 5, a frame 6, a bevel gear 7, a bevel gear box 8, a bevel gear box end cover 9, a bolt 10, a nut 11, a transmission shaft 12, an oil chamber sealing oil ring 13, a blade sealing oil ring 14, an oil inlet 15, an oil chamber 16, an oil channel 17, an oil outlet 18, and a rotary tilling blade holder oil chamber 19.

[0021] See also Figure 1 Main structure diagram and Figure 2 Schematic diagram of the assembly structure of bevel gears, bevel gear box, bevel gear box end cover, bolts and nuts, the rotary blade 4 is installed in the oil chamber of the rotary blade holder 3 and is sealed by the blade sealing oil ring 14, the rotary blade holder 3 is welded to the rotary blade shaft 2, both ends of the rotary blade shaft 2 are installed on the frame 6, the right end is connected to the spur gear 1 by a key, the left end is connected to the oil storage 5, and is sealed by the blade sealing oil ring 13, the bevel gear 7 is installed in the bevel gear box 8, the bevel gear box 8 is installed on the transmission shaft 12, the transmission shaft 12 is installed on the frame 6 and the right end overhang is connected to the spur gear 1 by a key.

[0022] See also Figure 3 Schematic diagram of the structure on the oil inlet side of the oil storage tank and Figure 4 A schematic diagram of the structure of one side of the oil chamber of the oil storage device, wherein four oil inlets are evenly distributed along the circumference of the oil storage device 5, and the oil storage device 5 is installed at the left end of the rotary tiller shaft 2 with an oil channel and is sealed by the oil chamber sealing ring 13 to form an oil chamber 16.

[0023] See also Figure 5 Schematic diagram of the partial structure of the rotary blade shaft and the oil chamber sealing oil ring. The left end of the rotary blade shaft 2 is provided with four oil passages 17 evenly distributed along the circumferential direction, and the oil outlet 18 is connected to the oil passage 17.

[0024] See also Figure 5 Schematic diagram of the local structure of the rotary tiller shaft and the oil chamber sealing oil ring Figure 6 Schematic diagram of the partial structure of the rotary tiller blade frame, a rotary tiller blade frame oil chamber 19 is opened in the rotary tiller blade frame 3, and the bottom of the rotary tiller blade frame oil chamber 19 is opposite to the circumferential oil outlet 18 opened on the rotary tiller blade shaft 2.

[0025] See also Figure 6 Schematic diagram of the local structure of the rotary tillage blade frame and Figure 7 Schematic diagram of the structure of the rotary tillage blade and the blade sealing oil ring. The blade sealing oil ring 14 is sleeved in the square groove of the rotary tillage blade 4 and is installed in the rotary tillage blade holder oil chamber 19 together with the rotary tillage blade 4.

[0026] The working principle of the present invention is described as follows:

[0027] Before starting the rotary tillage operation, the high-pressure oil enters the oil storage device 5 through the oil inlet 15, then enters the oil passage 17 on the rotary tiller shaft 2 through one side of the oil chamber 16 on the oil storage device 5, and finally is sent into the oil chamber 19 of the rotary tiller frame through the oil outlet 18, wherein the oil storage device 5 does not rotate relative to the frame 6.

[0028] When the high-pressure oil enters the oil chamber 19 of the rotary tiller holder, it pushes the rotary tiller blade 4 inside the oil chamber 19 of the rotary tiller holder to achieve extension and retraction, so that the overhang length of the rotary tiller blade 4 in the rotary tiller device is changed, and the rotary tillage depth is changed accordingly.

[0029] When the rotary tillage depth adjustment is completed, the bevel gear transmission device is driven by an external motor, and the power is transmitted to the spur gear transmission device through the transmission shaft 12. The spur gear 1 fixedly connected to the rotary tillage shaft 2 by a key drives the rotary tillage shaft 2 to rotate, thereby driving the rotary tillage blade 4 fixed on the rotary tillage shaft 2 to rotate continuously to achieve rotary tillage and soil crushing operations, wherein the tillage depth is controlled by the above-mentioned hydraulic control method before the rotary tillage operation, and the degree of soil crushing is controlled by the motor speed.

Claims

1. A rotary tillage device with adjustable tillage depth, comprising a spur gear (1), a rotary tillage blade shaft (2), a rotary tillage blade holder (3), a rotary tillage blade (4), an oil storage device (5), a frame (6), a bevel gear (7), a bevel gear box (8), a bevel gear box end cover (9), a bolt (10), a nut (11), a transmission shaft (12), an oil chamber sealing oil ring (13), a blade sealing oil ring (14), an oil inlet (15), an oil chamber (16), an oil passage (17), an oil outlet (18), and an oil chamber (19) of the rotary tillage blade holder, characterized in that: The rotary tiller blade (4) is installed in the oil chamber (19) of the rotary tiller blade holder and is sealed by a blade sealing oil ring (14). The rotary tiller blade holder (3) is welded to the rotary tiller blade shaft (2). Both ends of the rotary tiller blade shaft (2) are installed on the frame (6). The right end of the rotary tiller blade shaft (2) is connected to the spur gear (1) through a flat key at its overhanging portion, and the left end is connected to the oil storage (5) and is sealed by a blade sealing oil ring (14). The bevel gear (7) is installed in a bevel gear box (8). The bevel gear box (8) is installed on a transmission shaft (12). The transmission shaft (12) is installed on the frame (6) and the right end of the rotary tiller blade shaft (2) is connected to the spur gear (1) through a flat key at its overhanging portion.

2. The adjustable tillage depth rotary tillage device according to claim 1, further characterized in that: A rotary tiller frame oil chamber (19) is provided in the rotary tiller frame (3), and the bottom of the rotary tiller frame oil chamber (19) is directly opposite to the circumferential oil outlet (18) provided on the rotary tiller blade shaft (2).

3. The adjustable tillage depth rotary tillage device according to claim 1 is further characterized in that: The blade sealing oil ring (14) is sleeved in the square groove of the rotary tillage blade (4) and is installed in the rotary tillage blade holder oil chamber (19) together with the rotary tillage blade (4).

4. The adjustable tillage depth rotary tillage device according to claim 1, further characterized in that: The left end of the rotary tiller shaft (2) is provided with four oil passages (17) evenly distributed along the circumferential direction, and the oil outlet (18) is connected to the oil passages (17).

5. The adjustable tillage depth rotary tillage device according to claim 1, further characterized in that: The oil storage device (5) has four oil inlets (15) evenly distributed along the circumferential direction. The oil storage device (5) is installed at the left end of a rotary tiller shaft (2) provided with an oil passage (17) and is sealed by an oil chamber sealing ring (13) to form an oil chamber (16).

Images