Steering device of hydraulically driven tiller boat

Abstract

The invention discloses a steering device of a hydraulically driven mechanized ploughing boat, and relates to the technical field of intelligent agricultural power machinery manufacturing, including a steering wheel, an adjusting mechanism, an anti-silt mechanism and a protective mechanism, wherein a bogie is fixedly connected to the middle of the bottom of the steering wheel, a movable front wheel is arranged on the lower side of the bogie, and a fixed dial plate is fixedly connected to the outer side of the movable front wheel. In the invention, when the silt is thick and causes the front wheel of the mechanized ploughing boat to sink into the silt and cannot move normally, on the basis of expanding the outer contour of the movable front wheel, the electric telescopic rod 2 is controlled to work, so that the electric telescopic rod 2 pushes the movable guide frame, and the adjusting plate is squeezed during pushing, so that the adjusting plate pushes the driving frame, and at this time, the outer arc plate rotates in the positioning frame, so that the outer arc plate is flush with the edge of the outer arc plate, and the contact area between the entire movable front wheel and the silt is increased, and at the same time, the friction strip on the outer side of the outer arc plate contacts the silt, further providing grip, so that the silt can be directly squeezed out, and the mechanized ploughing boat can move normally.

Description

Technical Field

[0001] The invention relates to the technical field of intelligent agricultural power machinery manufacturing, and in particular to a steering device of a hydraulically driven tillage boat. Background Art

[0002] The hydraulic driven tiller boat is an agricultural machine used for working on soft soil such as paddy fields and swamps. It adopts a hydraulic drive system and has the characteristics of easy operation, high operating efficiency and strong adaptability. The hydraulic system controls the rotation of the driving wheel to realize tillage, harrowing and other operations of the tiller boat in the field.

[0003] When a hydraulically driven tiller boat is operating in a paddy field, due to the different viscosity of the soil in the paddy field, the model of the tiller boat needs to be adjusted specifically for different paddy fields. Because different tillers have different steering devices in the paddy fields, and the viscosity of the soil in the paddy field is uncontrollable, the tiller boat will get stuck when turning, and the steering wheel cannot be adjusted in a timely and targeted manner according to the soil conditions. At this time, an additional crane is required for rescue work, which increases the cost during use. Improvements need to be made to this problem. Summary of the invention

[0004] The object of the present invention is to provide a steering device for a hydraulically driven tiller boat to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a steering device of a hydraulically driven tiller boat, comprising a steering wheel, an adjustment mechanism, an anti-silt mechanism and a protection mechanism, a bogie fixedly connected to the middle of the bottom of the steering wheel, a movable front wheel is provided on the lower inner side of the bogie, and a fixed paddle is fixedly connected to the outer side of the movable front wheel.

[0006] Wherein, the regulating mechanism comprises:

[0007] A connecting shaft is rotatably connected to the bottom inner side of the bogie, a rotating sleeve is fixedly connected to the outer side of the connecting shaft, an electric telescopic rod 1 is fixedly connected to the middle of the top of the rotating sleeve, a lifting frame is fixedly connected to the top of the electric telescopic rod 1, a moving dial plate is fixedly connected to the top of the lifting frame, a spring is fixedly connected to the left side of the lifting frame, an external expansion frame is fixedly connected to the side of the spring away from the lifting frame, and an external expansion plate is fixedly connected to the front side of the top of the external expansion frame.

[0008] According to the above technical scheme, the anti-silt mechanism includes a movable groove, an electric telescopic rod two, a movable guide frame, an adjustment plate, a driving frame, an outward expansion arc plate and a positioning frame. The movable groove is fixedly connected to the middle of the front side of the outward expansion plate, the electric telescopic rod two is fixedly connected to the middle of the bottom of the movable groove, the movable guide frame is fixedly connected to the top of the electric telescopic rod two, the adjustment plate is rotatably connected to the front side of the movable guide frame, the driving frame is rotatably connected to the side of the adjustment plate away from the movable guide frame, the outward expansion arc plate is fixedly connected to the top of the driving frame, and the positioning frame is fixedly connected to the top of the front side of the outward expansion plate.

[0009] According to the above technical solution, the protective mechanism includes an air storage bag, a connecting pipe rack, a shunt pipe and a hard rubber tread. The air storage bag is fixedly connected to the top of the rotating sleeve and is located on the rear side of the electric telescopic rod. The connecting pipe rack is fixedly connected to the bottom of the back side of the air storage bag, the shunt pipe is fixedly connected to the left side of the connecting pipe rack, and the hard rubber tread is fixedly connected to the top of the shunt pipe.

[0010] According to the above technical solution, a rectangular groove for accommodating the lifting and lowering of the movable paddle is opened on the outer surface of the movable front wheel, a fixed slot is opened on the outer surface of the movable front wheel, the hard rubber tread is arranged in the fixed slot and fixedly connected to the inner wall of the movable front wheel, so that the hard rubber tread can be fixed.

[0011] According to the above technical solution, the rear side of the outward-expanding arc plate is rotatably connected to the middle part of the positioning frame, the top of the second electric telescopic rod passes through the bottom of the movable groove and extends into the movable groove and is fixedly connected to the bottom of the movable guide frame, and the outer side of the movable guide frame is slidably connected to the inner wall of the movable groove, so that the movable guide frame can slide in the movable groove.

[0012] According to the above technical solution, the outward-expanding arc plate is an arc-shaped plate, and a friction strip is arranged on the outer side of the outward-expanding arc plate, which can increase the friction force when the outward-expanding arc plate contacts the soil.

[0013] According to the above technical solution, the connecting shaft is fixedly connected to the middle of the movable front wheel, and the front and back sides of the movable front wheel are provided with guide grooves for accommodating the movement of the outward expansion frame, so that the outward expansion frame can be lifted and moved outside the movable front wheel.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0015] When the mechanized tiller encounters wheel slippage, the front wheel of the mechanized tiller cannot effectively control the direction, and its rear driving wheel rotates at high speed. It is judged that relatively thin silt is encountered at this time, which causes the front wheel of the mechanized tiller to be unable to effectively grip the soil, thereby causing the vehicle to be unable to move. At this time, the electric telescopic rod is controlled to work, and the lifting frame is pushed when the electric telescopic rod works, so that the moving paddle plate on the lifting frame is exposed from the rectangular groove on the outside of the moving front wheel. At the same time, when the lifting frame rises, the outer expansion frame is driven to move by the spring, and when the outer expansion frame moves, the outer expansion plate moves outward on the outside of the moving front wheel, thereby increasing the overall contour of the outer side of the moving front wheel, making the force of the moving front wheel in contact with the soil greater, making it easier for the moving front wheel to directly rise from the relatively shallow silt, so that the front wheel of the mechanized tiller can be directly pulled out of the silt, so that the mechanized tiller can operate normally;

[0016] When the silt is thick and the front wheel of the tiller boat is stuck in the silt and cannot move normally, on the basis of expanding the outer contour of the moving front wheel, the electric telescopic rod 2 is controlled to work, so that the electric telescopic rod 2 pushes the moving guide frame, and squeezes the adjustment plate during the pushing, so that the adjustment plate pushes the driving frame. At this time, the outer arc plate rotates in the positioning frame, so that the outer arc plate is flush with the edge of the outer arc plate, increasing the contact area between the entire moving front wheel and the silt. At the same time, the friction strip on the outer side of the outer arc plate contacts the silt, further providing grip, so that the silt can be directly squeezed out, and the tiller boat can move normally.

[0017] When the soil in the paddy field is relatively dry, stones and relatively hard soil blocks are easily stuck between the fixed paddle and the mobile paddle on the outer side of the moving front wheel, causing the mechanized tiller to be unable to move normally. At this time, the electric telescopic rod is controlled to work, so that the electric telescopic rod drives the lifting frame and the moving paddle to move downward, so that the moving paddle is stored in the moving front wheel. At this time, the moving paddle is flush with the rectangular groove on the outer side of the moving front wheel, and at the same time, the lifting frame squeezes the air storage bag. When the air storage bag is squeezed, the air in the air storage bag is introduced into the shunt pipe through the connecting pipe frame, so that the air in the shunt pipe is filled into the hard rubber tread. At this time, the moving paddle is stored in the moving front wheel, which increases the distance between the fixed paddles on the outside of the moving front wheel, so that stones and harder soil blocks can be directly dropped. At the same time, the hard rubber tread is exposed from the outside of the moving front wheel. When the hard rubber tread on the outside of the moving front wheel contacts the protruding ground, the friction between the entire moving front wheel and the ground can be increased, so that the mechanized tiller can move out of the harder soil blocks to avoid being stuck, so that the mechanized tiller can adapt to paddy fields in various conditions and improve working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the mobile front wheel of the present invention;

[0021] Figure 3 It is a schematic diagram of an explosion at a lifting frame of the present invention;

[0022] Figure 4 It is a schematic diagram of the external expansion frame of the present invention;

[0023] Figure 5 It is a schematic diagram of two parts of the electric telescopic rod of the present invention;

[0024] Figure 6 yes Figure 5 The enlarged schematic diagram at A in the middle;

[0025] Figure 7 It is a schematic diagram of the connection pipe rack of the present invention.

[0026] In the figure: 1. steering wheel; 2. bogie; 3. moving front wheel; 4. fixed paddle; 5. adjusting mechanism; 501. connecting shaft; 502. rotating sleeve; 503. electric telescopic rod 1; 504. lifting frame; 505. moving paddle; 506. spring; 507. expansion frame; 508. expansion plate; 6. anti-silt mechanism; 601. moving groove; 602. electric telescopic rod 2; 603. moving guide frame; 604. adjusting plate; 605. driving frame; 606. expansion arc plate; 607. positioning frame; 7. protection mechanism; 701. air storage bag; 702. connecting pipe frame; 703. shunt pipe; 704. hard rubber tread. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-4 The present invention provides a technical solution: a steering device for a hydraulically driven tiller boat, comprising a steering wheel 1, an adjusting mechanism 5, an anti-silt mechanism 6 and a protective mechanism 7, a bogie 2 is fixedly connected to the middle of the bottom of the steering wheel 1, a movable front wheel 3 is arranged on the lower inner side of the bogie 2, and a fixed paddle 4 is fixedly connected to the outer side of the movable front wheel 3.

[0029] Wherein, the regulating mechanism 5 comprises:

[0030] A connecting shaft 501 is rotatably connected to the inner bottom of the bogie 2, a rotating sleeve 502 is fixedly connected to the outer side of the connecting shaft 501, an electric telescopic rod 503 is fixedly connected to the middle of the top of the rotating sleeve 502, a lifting frame 504 is fixedly connected to the top of the electric telescopic rod 503, a moving dial plate 505 is fixedly connected to the top of the lifting frame 504, a spring 506 is fixedly connected to the left side of the lifting frame 504, a side of the spring 506 away from the lifting frame 504 is fixedly connected to an expansion frame 507, and an expansion plate 508 is fixedly connected to the front side of the top of the expansion frame 507;

[0031] A rectangular groove is provided on the outer surface of the movable front wheel 3 to accommodate the lifting and lowering of the movable dial plate 505, a fixed slot is provided on the outer surface of the movable front wheel 3, the connecting shaft 501 is fixedly connected to the middle part of the movable front wheel 3, and guide grooves are provided on the front and back sides of the movable front wheel 3 to accommodate the movement of the outward expansion frame 507, so that the outward expansion frame 507 can be lifted and lowered on the outside of the movable front wheel 3.

[0032] When the mechanized tiller encounters wheel slippage, the front wheel of the mechanized tiller cannot effectively control the direction, and its rear driving wheel rotates at high speed. It is judged that relatively thin silt is encountered at this time, which causes the front wheel of the mechanized tiller to be unable to effectively grip the soil, thereby causing the vehicle to be unable to move. At this time, the electric telescopic rod 503 is controlled to work, and the lifting frame 504 is pushed when the electric telescopic rod 503 works, so that the moving dial plate 505 on the lifting frame 504 is exposed from the rectangular groove on the outside of the moving front wheel 3. At the same time, when the lifting frame 504 rises, the outer expansion frame 507 is driven to move by the spring 506. When the outer expansion frame 507 moves, the outer expansion plate 508 moves outward on the outside of the moving front wheel 3, thereby increasing the overall contour of the outer side of the moving front wheel 3, making the force of the moving front wheel 3 when contacting the soil greater, making it easier for the moving front wheel 3 to directly rise from the relatively shallow silt, so that the front wheel of the mechanized tiller can be directly pulled out of the silt, so that the mechanized tiller can operate normally.

[0033] See also Figure 5-7 The present invention provides a technical solution: the anti-silt mechanism 6 includes a moving groove 601, an electric telescopic rod 602, a moving guide frame 603, an adjustment plate 604, a driving frame 605, an outward expansion arc plate 606 and a positioning frame 607. The moving groove 601 is fixedly connected to the middle of the front of the outward expansion plate 508, the electric telescopic rod 602 is fixedly connected to the middle of the bottom of the moving groove 601, the moving guide frame 603 is fixedly connected to the top of the electric telescopic rod 602, the adjustment plate 604 is rotatably connected to the front of the moving guide frame 603, the driving frame 605 is rotatably connected to the side of the adjustment plate 604 away from the moving guide frame 603, the outward expansion arc plate 606 is fixedly connected to the top of the driving frame 605, and the positioning frame 607 is fixedly connected to the top of the front of the outward expansion plate 508.

[0034] According to the above technical solution, the protection mechanism 7 includes an air storage bag 701, a connecting pipe frame 702, a shunt pipe 703 and a hard rubber tread 704. The air storage bag 701 is fixedly connected to the top of the rotating sleeve 502 and is located at the rear side of the electric telescopic rod 503. The connecting pipe frame 702 is fixedly connected to the bottom of the back of the air storage bag 701. The shunt pipe 703 is fixedly connected to the left side of the connecting pipe frame 702. The hard rubber tread 704 is fixedly connected to the top of the shunt pipe 703.

[0035] The hard rubber tread 704 is arranged in the fixed slot and fixedly connected to the inner wall of the movable front wheel 3, so that the hard rubber tread 704 can be fixed.

[0036] According to the above technical solution, the rear side of the outward arc plate 606 is rotatably connected to the middle part of the positioning frame 607, the top of the electric telescopic rod 602 passes through the bottom of the movable groove 601 and extends into the movable groove 601 and is fixedly connected to the bottom of the movable guide frame 603, and the outer side of the movable guide frame 603 is slidably connected to the inner wall of the movable groove 601, so that the movable guide frame 603 can slide in the movable groove 601.

[0037] According to the above technical solution, the outwardly expanding arc plate 606 is an arc-shaped plate, and a friction strip is arranged on the outer side of the outwardly expanding arc plate 606, which can increase the friction force when the outwardly expanding arc plate 606 contacts the soil.

[0038] When the silt is thick and the front wheel of the motor-tillage boat is stuck in the silt and cannot move normally, on the basis of expanding the outer contour of the movable front wheel 3, the electric telescopic rod 2 602 is controlled to work, so that the electric telescopic rod 2 602 pushes the movable guide frame 603, and the movable guide frame 603 squeezes the adjustment plate 604 while pushing, so that the adjustment plate 604 pushes the driving frame 605. At this time, the outward arc plate 606 rotates in the positioning frame 607, so that the outward arc plate 606 is flush with the edge of the outward arc plate 508, thereby increasing the contact area between the entire movable front wheel 3 and the silt. At the same time, the friction strip on the outer side of the outward arc plate 606 contacts the silt, further providing grip, so that the silt can be directly squeezed out and the motor-tillage boat can move normally.

[0039] When the soil in the paddy field is relatively dry, stones and relatively hard soil blocks are easily stuck between the fixed plate 4 and the mobile plate 505 on the outer side of the mobile front wheel 3, making it difficult for the mechanized tiller to move normally. At this time, the electric telescopic rod 503 is controlled to work, so that the electric telescopic rod 503 drives the lifting frame 504 and the mobile plate 505 to move downward, so that the mobile plate 505 is stored in the mobile front wheel 3. At this time, the mobile plate 505 is flush with the rectangular groove on the outer side of the mobile front wheel 3, and the lifting frame 504 squeezes the air bag 701. When the air bag 701 is squeezed, the air in the air bag 701 is introduced into the shunt pipe 703 through the connecting pipe frame 702, so that the shunt pipe 703 The air in the tire is filled into the hard rubber tread 704, so that the hard rubber tread 704 is exposed from the fixed card slot. At this time, the movable paddle 505 is stored in the movable front wheel 3, and the distance between the fixed paddle 4 and the fixed paddle 4 on the outer side of the movable front wheel 3 is increased, so that stones and relatively hard soil blocks can be directly dropped. At the same time, the hard rubber tread 704 is exposed from the outer side of the movable front wheel 3. When the hard rubber tread 704 on the outer side of the movable front wheel 3 contacts the protruding ground, the friction force when the movable front wheel 3 as a whole contacts the ground can be increased, so that the mechanized tiller can move out from the relatively hard soil block to avoid being stuck, so that the mechanized tiller can adapt to paddy fields in various different conditions and improve working efficiency.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steering device for a hydraulically driven tiller boat, comprising a steering wheel (1), characterized in that: It also comprises an adjustment mechanism (5), an anti-sludge mechanism (6) and a protection mechanism (7); a bogie (2) is fixedly connected to the middle of the bottom of the steering wheel (1); a movable front wheel (3) is provided on the inner lower side of the bogie (2); and a fixed paddle (4) is fixedly connected to the outer side of the movable front wheel (3); Wherein, the regulating mechanism (5) comprises: A connecting shaft (501), the connecting shaft (501) is rotatably connected to the inner bottom of the bogie (2), a rotating sleeve (502) is fixedly connected to the outer side of the connecting shaft (501), an electric telescopic rod (503) is fixedly connected to the middle of the top of the rotating sleeve (502), a lifting frame (504) is fixedly connected to the top of the electric telescopic rod (503), a moving dial plate (505) is fixedly connected to the top of the lifting frame (504), a spring (506) is fixedly connected to the left side of the lifting frame (504), a side of the spring (506) away from the lifting frame (504) is fixedly connected to an external expansion frame (507), and an external expansion plate (508) is fixedly connected to the front side of the top of the external expansion frame (507); The anti-silt mechanism (6) comprises a moving groove (601), a second electric telescopic rod (602), a moving guide frame (603), an adjustment plate (604), a driving frame (605), an outward-expanding arc plate (606) and a positioning frame (607), wherein the moving groove (601) is fixedly connected to the middle of the front side of the outward-expanding plate (508), the second electric telescopic rod (602) is fixedly connected to the middle of the bottom of the moving groove (601), the moving guide frame (603) is fixedly connected to the top of the second electric telescopic rod (602), the adjustment plate (604) is rotatably connected to the front side of the moving guide frame (603), the driving frame (605) is rotatably connected to a side of the adjustment plate (604) away from the moving guide frame (603), the outward-expanding arc plate (606) is fixedly connected to the top of the driving frame (605), and the positioning frame (607) is fixedly connected to the top of the front side of the outward-expanding plate (508); The protection mechanism (7) comprises an air storage bag (701), a connecting pipe frame (702), a shunt pipe (703) and a hard rubber tread (704); the air storage bag (701) is fixedly connected to the top of the rotating sleeve (502) and is located at the rear side of the electric telescopic rod (503); the connecting pipe frame (702) is fixedly connected to the bottom of the back side of the air storage bag (701); the shunt pipe (703) is fixedly connected to the left side of the connecting pipe frame (702); and the hard rubber tread (704) is fixedly connected to the top of the shunt pipe (703); The rear side of the outwardly expanded arc plate (606) is rotatably connected to the middle of the positioning frame (607); the top of the second electric telescopic rod (602) passes through the bottom of the movable groove (601) and extends into the movable groove (601) to be fixedly connected to the bottom of the movable guide frame (603); the outer side of the movable guide frame (603) is slidably connected to the inner wall of the movable groove (601).

2. The steering device of a hydraulically driven tiller boat according to claim 1, characterized in that: The outer surface of the movable front wheel (3) is provided with a rectangular groove for accommodating the lifting of the movable dial plate (505), and the outer surface of the movable front wheel (3) is provided with a fixed slot, and the hard rubber tread (704) is arranged in the fixed slot and fixedly connected to the inner wall of the movable front wheel (3).

3. The steering device of a hydraulically driven tiller boat according to claim 1, characterized in that: The outwardly expanding arc plate (606) is an arc-shaped plate, and a friction strip is arranged on the outside of the outwardly expanding arc plate (606).

4. The steering device of a hydraulically driven tiller boat according to claim 3, characterized in that: The connecting shaft (501) is fixedly connected to the middle of the movable front wheel (3), and the front and back sides of the movable front wheel (3) are both provided with guide grooves for accommodating the movement of the external expansion frame (507).

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