Three-dimensional horizontal stubble cleaning and smashing single body with adjustable height and angle

Abstract

The invention discloses a three-dimensional horizontal stubble cleaning and crushing single body with adjustable height and angle, and belongs to agricultural machinery. A fork-type rocker is hinged to a fixing seat through a hinge pin, a spline shaft is hoisted on the fork-type rocker through a supporting pin, a spline sleeve is sleeved on the spline shaft in a relatively axial moving mode, a fixed hollow motor is fixedly sleeved outside the spline sleeve, and an upper shaft sleeve is fixedly installed on the spline sleeve. A long hanging rod, a middle hanging rod and a short hanging rod which are provided with driving blocks are fixedly installed on an upper shaft sleeve in a hanging mode through six supporting arms respectively, supporting rods A, B and C are fixedly installed on a spline shaft through a lower shaft sleeve, an L-shaped tool apron is installed on the supporting rods A, B and C in a hinged mode, the two ends of a push-pull rod are hinged to the driving blocks and the L-shaped tool apron respectively, and a stubble cleaning smashing cutter is fixedly installed on the L-shaped tool apron. Stepless adjustment of the height position of the stubble cleaning smashing cutter and the penetrating rotary tillage stubble cleaning angle is achieved, three-layer three-dimensional operation can be completed, the structure is novel, unique and reasonable, the application capacity is high, the operation quality is good, cutter abrasion is low, the service life is long, and the operation cost is low.

Description

Technical Field

[0001] The invention belongs to agricultural machinery, and mainly relates to a stubble destroying and crushing operation component. Background Art

[0002] The stubble-chopping component on the rotary tillage and stubble-chopping land preparation machine is a key component that affects and determines the quality and effect of stubble-chopping and crushing. At present, the planar single-layer horizontal rotary stubble-chopping and crushing component has been developed and applied. This component is a technical product that is different from the traditional vertically rotating L-shaped or Y-shaped stubble-chopping and crushing component. However, due to the shortcomings of the structural design, the existing single-layer horizontal stubble-chopping and crushing component cannot adjust the height position and the angle of entry into the soil according to the height of the stubble position and the length of the stubble stem, as well as the differences in land and soil conditions during operation. It does not have the function and ability of three-dimensional operation, and there are many problems that need to be overcome and solved, such as poor adaptability, high power consumption, fast tool wear, short life, high use cost, and poor stubble-chopping and crushing quality. Summary of the invention

[0003] The purpose of the present invention is to address the problems existing in the above-mentioned prior art, combine with the actual needs of the current stubble crushing operation, and develop and design a three-dimensional horizontal stubble crushing unit with adjustable height and angle. This unit can adjust the height and stubble crushing angle of the stubble crushing knife during operation according to the height of the stubble, the length of the root stubble stem and the soil conditions of the land, so as to achieve the purposes of strong applicability, greatly improving the quality and effect of inter-tillage stubble crushing operation, reducing operation power consumption, reducing tool wear, extending service life and saving operation costs.

[0004] The purpose of the invention is achieved as follows: a fork rocker is hingedly installed on a fixed seat so as to be vertically rotatable through a hinge pin, a spline shaft is suspended and installed on the fork rocker so as to be axially and radially positioned and circumferentially rotatable through a support pin, a spline sleeve is mounted on the outside of the spline shaft so as to be circumferentially and radially positioned and axially relatively movable, a hollow motor is fixedly mounted and fixedly installed on the outside of the spline sleeve, an upper sleeve is fixedly mounted on the upper end of the spline sleeve and located at the outer side of the hollow motor, six support arms are fixedly installed on the outer side of the upper sleeve in a uniformly distributed manner in the circumferential direction, and two short suspension rods, a middle suspension rod and a long suspension rod are suspended and installed on the six support arms in a manner spaced from each other in sequence in the circumferential direction, Drive blocks are fixed on the lower ends of the short boom, middle boom and long boom respectively; a lower sleeve is fixed on the bottom end of the spline shaft, and two support rods A, B and C are fixed on the outside of the lower sleeve in sequence from top to bottom and in an evenly distributed and staggered manner along the circumferential direction; an L-shaped knife holder is installed on the outer sides of the two support rods A, B and C so as to be able to reciprocate vertically; a stubble crushing knife is fixed on the L-shaped knife holder, and the upper and lower ends of the push-pull rod are hinged on the drive block and the L-shaped knife holder respectively; the hinge point of the lower end of the push-pull rod and the L-shaped knife holder is eccentrically arranged with the axial center line of the support rods A, B and C, thereby forming a three-dimensional horizontal stubble crushing unit with adjustable height and angle.

[0005] The invention realizes stepless adjustment of the height position of the stubble crushing knife and the angle of the soil for stubble killing and rotary tillage during operation, and is coordinated with the installation structure of the upper, middle and lower three-layer stubble crushing knife to complete the three-dimensional stubble crushing operation. It has the characteristics of novel, unique and reasonable structure, strong applicability, good operation quality and effect, low power consumption, light tool wear, long service life and low operation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the overall structure of a three-dimensional horizontal stubble-crushing unit with adjustable height and angle;

[0007] Figure 2 This is a schematic diagram of the L-shaped tool holder assembly structure;

[0008] Figure 3 This is a schematic diagram of the assembly structure of the hollow motor, spline shaft, spline sleeve, and upper shaft sleeve;

[0009] Figure 4 It is a schematic diagram of the assembly structure of the spline shaft, the lower sleeve and the L-shaped tool holder.

[0010] Description of part numbers in the figure:

[0011] 1. Fixed seat, 2. Spline shaft, 3. Upper bushing, 4. Support arm, 5. L-shaped knife seat, 6. Stubble crushing knife, 7. Support rod A, 8. Long suspension rod, 9. Spline sleeve, 10. Lower sleeve, 11. Support rod B, 12. Support rod C, 13. Middle suspension rod, 14. Short suspension rod, 15. Hollow motor, 16. Support pin, 17. Fork rocker, 18. Hinge pin, 19. Drive block, 20. Push-pull rod. DETAILED DESCRIPTION

[0012] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0013] A three-dimensional horizontal stubble crushing unit with adjustable height and angle, a fork rocker 17 is hingedly installed on a fixed fixed seat 1 so as to be vertically rotatable through a hinge pin 18, a spline shaft 2 is axially and radially positioned and circumferentially rotatable and suspended and installed on the fork rocker 17 through a support pin 16, a spline sleeve 9 is mounted on the outside of the spline shaft 2 so as to be circumferentially and radially positioned and axially relatively movable, a hollow motor 15 is fixedly mounted and fixed on the outside of the spline sleeve 9, an upper sleeve 3 is fixedly mounted on the upper end of the spline sleeve 9 and located on the outer side of the hollow motor 15, six support arms 4 are evenly distributed along the circumferential direction on the outer side of the upper sleeve 3, and two long suspension rods 8 and middle suspension rods are suspended and installed on the six support arms 4 in sequence and spaced from each other along the circumferential direction. Rod 13 and short suspension rod 14, and driving blocks 19 are respectively fixed on the lower ends of the long suspension rod 8, the middle suspension rod 13 and the short suspension rod 14; a lower sleeve 10 is fixed on the bottom end of the spline shaft 2, and two support rods A7, support rod B11 and support rod C12 are fixed on the outside of the lower sleeve 10 from top to bottom and staggered and evenly distributed along the circumferential direction, and an L-shaped knife seat 5 is respectively installed on the outer sides of the two support rods A7, support rod B11 and support rod C12 so that they can reciprocate vertically, and the stubble crushing knife 6 is fixed on the L-shaped knife seat 5. The upper and lower ends of the push-pull rod 20 are respectively hinged on the driving block 19 and the L-shaped knife seat 5, and the hinge point of the lower end of the push-pull rod 20 and the L-shaped knife seat 5 is eccentric to the axis line of the support rods A7, support rod B11 and support rod C12.

[0014] During operation, the hollow motor 15 is started, and the rotational movement of the hollow motor 15 causes the spline sleeve 9 to drive the upper sleeve 3 and the spline shaft 2 to rotate synchronously, respectively. The rotating ground sleeve 3 drives the long suspension rod 8, the middle suspension rod 13 and the short suspension rod 14 to revolve around the axis of the spline shaft 2 through the support arm 4. The rotating ground spline shaft 2 drives the stubble-killing and crushing knife 6 to revolve around the axis of the spline shaft 2 through the lower sleeve 10 via the L-shaped knife seat 5. The stubble-killing and crushing knife 6 configured in the upper, middle and lower layers completes the stubble-killing, crushing and rotary tillage operations on roots, stems and soil. When the height position and the rotary tillage angle of the stubble-killing pulverizing knife 6 need to be adjusted according to the conditions of the roots, stems and soil, the external driving power causes the fork rocker 17 to make a vertical circular swing around the hinge pin 18 on the fixed seat 1, and the spline shaft 2, the lower shaft sleeve 10, the support rod A7, the support rod B11, the support rod C12, and the L-shaped knife seat 5 are driven in sequence through the support pin 16 to complete the change of the upper and lower height positions of the stubble-killing pulverizing knife 6; at the same time, under the control of the hollow motor 5 at a fixed height position, the spline sleeve 9 The height positions of the upper sleeve 3, the support arm 4, the long suspension rod 8, the middle suspension rod 13, the short suspension rod 14 and the driving block 19 remain unchanged, and the L-shaped knife holder 5 whose upper and lower positions are changed is relatively pulled up or pushed down by the driving block 19 fixed at the lower part of the long, middle and short suspension rods 8, 13, 14 whose positions are fixed. The L-shaped knife holder 5 drives the stubble crushing knife 6 to twist in the upper and lower directions around the support rods A7, B11, C12 through the push-pull rod 20, and the stubble crushing knife 6 is simultaneously entered into the soil for rotary tillage and the stubble killing angle is adjusted.

[0015] The invention achieves remarkable and outstanding technical effects by steplessly adjusting the position height of the three-layer stubble crushing knife 6 and the rotary tillage stubble crushing angle, thereby ensuring the quality and effect of rotary tillage and stubble crushing operations, improving the adaptability of the operating unit, expanding the scope of application, reducing tool wear, extending service life, reducing power consumption and operating costs.

Claims

1. A three-dimensional horizontal stubble crushing unit with adjustable height and angle, characterized by: A fork rocker (17) is hingedly mounted on a fixed seat (1) via a hinge pin (18) so as to be vertically rotatable. A spline shaft (2) is suspended and mounted on the fork rocker (17) via a support pin (16) so as to be axially and radially positioned and circumferentially rotatable. A spline sleeve (9) is mounted on the outside of the spline shaft (2) so as to be circumferentially and radially positioned and axially relatively movable. A hollow motor (15) is fixedly mounted and positioned on the outside of the spline sleeve (9). An upper sleeve (3) is fixedly mounted on the upper end of the spline sleeve (9) at the outer side of the hollow motor (15). Six support arms (4) are evenly distributed along the circumferential direction on the outer side of the upper sleeve (3). Two long suspension rods (8), a middle suspension rod (13) and a short suspension rod (14) are suspended and mounted on the six support arms (4) at intervals from each other in the circumferential direction. A driving block (19) is fixedly mounted on the lower ends of the suspension rod (8), the middle suspension rod (13) and the short suspension rod (14); a lower sleeve (10) is fixedly mounted on the bottom end of the spline shaft (2); two support rods A (7), a support rod B (11) and a support rod C (12) are fixedly mounted on the outside of the lower sleeve (10) in a staggered and uniform manner from top to bottom along the circumferential direction; (12) An L-shaped blade holder (5) is mounted on the outer side so as to be vertically reciprocating and rotatable, and a stubble-crushing blade (6) is fixed on the L-shaped blade holder (5). The upper and lower ends of a push-pull rod (20) are hinged to a driving block (19) and the L-shaped blade holder (5) respectively, and the hinge point between the lower end of the push-pull rod (20) and the L-shaped blade holder (5) is eccentrically arranged with respect to the axis of the support rod A (7), the support rod B (11) and the support rod C (12).

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