Crop stalk cutting structure for tiller

Abstract

The utility model discloses a crop stalk cutting structure for a cultivator, which relates to the technical field of crop stalk processing and comprises a mounting connecting frame and a protective cover, the mounting connecting frame is fixed with the tail of a tractor, and the top end of the protective cover is fixedly connected with a right-angle converter. And the input end of the right-angle converter is connected with a power output shaft at the rear part of the tractor through a connecting shaft. According to the adjusting mechanism, the servo motor is used for driving the adjusting rod to rotate, the control block slides in the opposite direction or the opposite direction along with the rotating direction of the adjusting rod at the moment, and meanwhile the control block pulls the adjusting strip so that the adjusting strip can drive the limiting ring to move upwards or downwards; the crop platycodon grandiflorum is cut according to the terrain of the working environment, the situation that follow-up production operation is affected due to the fact that the residual height of the crop platycodon grandiflorum is too high is avoided, or the retaining height of the crop platycodon grandiflorum can be adjusted, and the use flexibility of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to crop straw processing technical field, concretely is a kind of crop straw cutting structure for tiller. BACKGROUND

[0002] Straw is the general term of mature crop stem (ear) part. "Burn", both save labor and can improve soil fertility, it is the most convenient and benefit maximization processing mode. Straw usually refers to the remaining part of wheat, rice, corn, potato, rape, cotton, sugarcane and other crops (usually coarse food) after harvesting seed. More than half of the products of photosynthesis of crops exist in straw.

[0003] Existing crop cleaning will leave a large amount of orange stem in planting area, and secondary treatment or selective retention of part of the height of orange stem is needed when harvesting, but the existing crop straw cutting equipment of tiller can only adjust the cutting height through the connecting part of tiller, and the height adjustment is limited by equipment, so it cannot meet most of the tillage environment, therefore, we provide a kind of crop straw cutting structure for tiller. UTILITY MODEL CONTENT

[0004] TECHNICAL PROBLEM SOLVED

[0005] The utility model aims at making up for the deficiency of prior art, and provides a kind of crop straw cutting structure for tiller.

[0006] TECHNICAL SCHEME

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of crop straw cutting structure for tiller, including installation connecting frame and protective cover, the installation connecting frame is fixed with tractor tail, the top of the protective cover is fixedly connected with right angle converter, the input end of the right angle converter is connected with tractor rear power output shaft by connecting shaft, the installation connecting frame front end extends to the inside of protective cover and is fixedly connected in its inside top, the output end of the right angle converter is fixedly connected with drive mechanism, the bottom of the protective cover is provided with a group of left-right symmetrical cutting disc, and the bottom of drive mechanism penetrates protective cover and is fixedly connected at the center of cutting disc, the inside top of the protective cover is fixedly connected with adjusting mechanism.

[0008] The above-mentioned adjusting mechanism includes fixed block, adjusting rod, control block, adjusting strip and limit ring, the adjusting rod is transversely penetrated fixed block and the connecting part between the two is movably connected by bearing, the control block is movably connected at the two ends of adjusting rod respectively, the adjusting strip is movably connected at the bottom of control block by pivot respectively, and the limit ring is movably connected at the bottom of adjusting strip by pivot respectively.

[0009] The two ends of the adjusting rod are provided with threads, and the threads are arranged symmetrically with respect to the central axis, the control block is movably connected with the adjusting rod through threads, and the inside top end of the protective cover is fixedly connected with a servo motor, and the output end of the servo motor is fixedly connected with one end of the adjusting rod.

[0010] The driving mechanism comprises an extension rod, a driving rod, a chain wheel and a chain, the chain wheel is provided with two and is movably connected through the chain, the top end of the driving rod is fixedly connected with the axis of the chain wheel, and the bottom end of the driving rod is movably connected with the inside of the extension rod.

[0011] The extension rod is vertically provided with a connecting groove, and the connecting groove is in the shape of a Chinese character "K", the cross section of the driving rod is matched with the connecting groove, and the bottom end of the driving rod is movably connected with the inside of the extension rod through the connecting groove, and the cutting discs are fixedly connected with the bottom end of the extension rod.

[0012] The outside of the extension rod is provided with a limiting groove, and the limiting groove is matched with the limiting ring, and the limiting ring is movably arranged in the inside of the limiting groove.

[0013] The chain wheel is fixedly connected with the top end of the protective cover through a bearing, the driving rod is arranged in the inside of the protective cover, the extension rod penetrates through the protective cover in the longitudinal direction, and the output end of the right-angle converter is fixedly connected with the axis of one of the chain wheels.

[0014] Beneficial effects:

[0015] Compared with the prior art, the crop straw cutting structure for the tillage machine has the following beneficial effects:

[0016] Firstly, the adjusting mechanism is arranged, the servo motor drives the adjusting rod to rotate, at this time, the control block slides in the opposite direction or the relative direction with the rotating direction of the adjusting rod, the control block pulls the adjusting strip, the limiting ring moves upward or downward, the height of the cutting disc with respect to the ground is controlled, the crop straw is cut according to the terrain of the working environment, the residual height of the crop straw is adjusted, and the flexibility of the equipment is improved.

[0017] Secondly, the driving mechanism is arranged, the right-angle converter drives the chain wheel to rotate, the other chain wheel is driven to rotate by the chain, the chain wheel drives the extension rod to rotate through the driving rod, the cutting disc rotates and cuts, the driving rod and the extension rod are connected in a special mode, the rotation of the extension rod driven by the driving rod is ensured when the extension rod slides up and down, the height of the cutting disc adjusted by the adjusting mechanism is ensured, and the cutting function is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is the connecting frame structure schematic view of the utility model;

[0020] Figure 3 It is the driving mechanism structure schematic view of the utility model;

[0021] Figure 4 It is the adjusting mechanism structure schematic view of the utility model.

[0022] In the drawing: 1, mounting connecting frame;2, protective cover;3, right angle converter;4, driving mechanism;401, extension rod;402, driving rod;403, chain wheel;404, chain;5, cutting disc;6, adjusting mechanism;601, fixed block;602, adjusting rod;603, control block;604, adjusting strip;605, limit ring;7, servo motor;8, connecting shaft. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] As Figures 1-4 The utility model provides a kind of technical scheme: a crop straw cutting structure for tillage machine, including mounting connecting frame 1 and protective cover 2, mounting connecting frame 1 is fixed with tractor tail, the top end of protective cover 2 is fixedly connected with right angle converter 3, the input end of right angle converter 3 is connected with the power output shaft of tractor rear portion by connecting shaft 8, mounting connecting frame 1 front end extends to the inside of protective cover 2 and is fixedly connected to its inside top end, the output end of right angle converter 3 is fixedly connected with driving mechanism 4, the bottom end of protective cover 2 is provided with a group of left-right symmetrical cutting disc 5, and the bottom end of driving mechanism 4 penetrates protective cover 2 and is fixedly connected at the center of cutting disc 5, the inside top end of protective cover 2 is fixedly connected with adjusting mechanism 6.

[0025] As Figures 1-4As shown, the adjusting mechanism 6 comprises a fixed block 601, an adjusting rod 602, a control block 603, an adjusting strip 604 and a limiting ring 605, the adjusting rod 602 transversely penetrates the fixed block 601 and the connecting part between the two is movably connected through a bearing, the control block 603 is movably connected to the two ends of the adjusting rod 602 respectively, the adjusting strip 604 is movably connected to the bottom end of the control block 603 through a rotating shaft respectively, and the limiting ring 605 is movably connected to the bottom end of the adjusting strip 604 through a rotating shaft respectively, the two ends of the adjusting rod 602 are provided with threads, and the threads are arranged in central axis symmetry, the control block 603 is movably connected with the adjusting rod 602 through threads, the inside top end of the protective cover 2 is fixedly connected with a servo motor 7, and the output end of the servo motor 7 is fixedly connected with one end of the adjusting rod 602.

[0026] In the embodiment, the servo motor 7 drives the adjusting rod 602 to rotate, at this time, the control block 603 slides in the opposite direction or the relative direction with the rotating direction of the adjusting rod 602, at the same time, the control block 603 pulls the adjusting strip 604, so that the limiting ring 605 moves along the upward or downward trajectory, thereby facilitating the control of the height of the cutting disc 5 and the ground, cutting the crop according to the terrain of the working environment, avoiding the influence of the residual height of the crop on the subsequent production operation, or adjusting the residual height of the crop to improve the flexibility of the equipment.

[0027] As shown in the figure, Figures 1-3 As shown, the driving mechanism 4 comprises an extension rod 401, a driving rod 402, a chain wheel 403 and a chain 404, the chain wheel 403 is provided with two and is drivingly connected through the chain 404, the top end of the driving rod 402 is fixedly connected to the axis of the chain wheel 403 respectively, and the bottom end of the driving rod 402 is slidingly connected to the inside of the extension rod 401, the extension rod 401 is vertically provided with a connecting groove, and the connecting groove is in the shape of a Chinese character "N", the cross section of the driving rod 402 is matched with the connecting groove, and the bottom end of the driving rod 402 is slidingly connected to the inside of the extension rod 401 through the connecting groove, the cutting disc 5 is fixedly connected to the bottom end of the extension rod 401 respectively, the outside of the extension rod 401 is provided with a limiting groove, and the limiting groove is matched with the limiting ring 605, the limiting ring 605 is sleeved in the limiting groove respectively, the chain wheel 403 is fixedly connected to the top end of the protective cover 2 through a bearing respectively, the driving rod 402 is located in the inside of the protective cover 2, the extension rod 401 penetrates the protective cover 2 vertically, and the output end of the right angle converter 3 is fixedly connected to the axis of one of the chain wheels 403.

[0028] In this embodiment, the power output shaft at the rear of the tractor is connected to the right-angle converter 3, and the chain wheel 403 is driven to rotate by the right-angle converter 3, and the other chain wheel 403 is driven to rotate by the chain 404, at this time, the chain wheel 403 drives the extension rod 401 to rotate through the driving rod 402, so that the cutting disc 5 is rotated and cut, and because of the special connection between the driving rod 402 and the extension rod 401, the extension rod 401 can slide up and down on the driving rod 402, and the driving rod 402 can drive the extension rod 401 to rotate, so that the adjusting mechanism 6 adjusts the height of the cutting disc 5 while ensuring the cutting function, and the chain 404 is kept tight by the tensioning structure (which is prior art and not shown in the figure).

[0029] Working principle: according to the working environment or the height of the crop stalks that need to be retained, the servo motor 7 is started to drive the adjusting rod 602 to rotate, at this time, the control block 603 slides in the opposite direction relative to or opposite to the rotating direction of the adjusting rod 602, and the control block 603 pulls the adjusting strip 604 to drive the limiting ring 605 to move upward or downward, and then the power output shaft at the rear of the tractor is started to rotate, and the chain wheel 403 is driven to rotate by the right-angle converter 3, and the other chain wheel 403 is driven to rotate by the chain 404, at this time, the chain wheel 403 drives the extension rod 401 to rotate through the driving rod 402, so that the cutting disc 5 is rotated and cut.

[0030] It should be noted that in this paper, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise specified and limited, the terms "fixed", "mounted", "connected", "linked" should be understood broadly, for example, "mounted" can be fixed connection, or detachable connection, or integral connection; "connected" can be mechanical connection, or electrical connection; "connected" can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crop straw cutting structure for a tillage machine, comprising a mounting connecting frame (1) fixed with the rear of a tractor and a protective cover (2), the top end of the protective cover (2) being fixedly connected with a right-angle converter (3), the input end of the right-angle converter (3) being connected with the power output shaft at the rear of the rear of the tractor through a connecting shaft (8), characterized in that: The mounting connecting frame (1) extends to the inside of the protective cover (2) and is fixedly connected to the inside top end thereof, the output end of the right angle converter (3) is fixedly connected with a driving mechanism (4), the bottom end of the protective cover (2) is provided with a group of left-right symmetrical cutting discs (5), and the bottom end of the driving mechanism (4) penetrates through the protective cover (2) and is fixedly connected to the center of the cutting disc (5), the inside top end of the protective cover (2) is fixedly connected with an adjusting mechanism (6). The adjusting mechanism (6) comprises a fixed block (601), an adjusting rod (602), a control block (603), an adjusting strip (604) and a limiting ring (605), the adjusting rod (602) penetrates through the fixed block (601) transversely and is movably connected at the connecting portion between the two through a bearing, the control block (603) is movably connected to the two ends of the adjusting rod (602) respectively, the adjusting strip (604) is movably connected to the bottom end of the control block (603) through a rotating shaft respectively, and the limiting ring (605) is movably connected to the bottom end of the adjusting strip (604) through a rotating shaft respectively.

2. A crop residue cutting structure for a tillage machine as claimed in claim 1, wherein: The two ends of the adjusting rod (602) are provided with threads, and the threads are arranged in central axis symmetry, the control block (603) is movably connected with the adjusting rod (602) through threads, the inside top end of the protective cover (2) is fixedly connected with a servo motor (7), and the output end of the servo motor (7) is fixedly connected with one end of the adjusting rod (602).

3. A crop residue cutting structure for a tillage machine as defined in claim 2, wherein: The driving mechanism (4) comprises an extension rod (401), a driving rod (402), a chain wheel (403) and a chain (404), the chain wheel (403) is provided with two and is drivingly connected through the chain (404), the top end of the driving rod (402) is fixedly connected to the axis of the chain wheel (403) respectively, and the bottom end of the driving rod (402) is slidingly connected to the inside of the extension rod (401).

4. A crop residue cutting structure for a tillage machine as defined in claim 3, wherein: The extension rod (401) is vertically provided with a connecting groove, and the connecting groove is in the shape of a Chinese character "N", the cross section of the driving rod (402) is matched with the connecting groove, and the bottom end of the driving rod (402) is slidingly connected to the inside of the extension rod (401) through the connecting groove, and the cutting disc (5) is fixedly connected to the bottom end of the extension rod (401).

5. A crop residue cutting structure for a tillage machine as defined in claim 4, wherein: The outer side of the extension rod (401) is provided with a limiting groove, and the limiting groove is matched with the limiting ring (605), and the limiting ring (605) is sleeved in the limiting groove.

6. A crop residue cutting structure for a tillage machine as defined in claim 5, wherein: The chain wheel (403) is fixedly connected to the top end of the protective cover (2) through a bearing respectively, the driving rod (402) is located in the inside of the protective cover (2), the extension rod (401) penetrates through the protective cover (2) longitudinally, and the output end of the right angle converter (3) is fixedly connected to the axis of one of the chain wheels (403).

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