Agricultural machine walking mechanism and agricultural machine

Abstract

The agricultural machine walking mechanism comprises a support assembly, a power device and a transmission assembly, the support assembly is rotationally connected with a driving wheel, the power device is connected with the support assembly, the transmission assembly comprises a first speed reduction component and a second speed reduction component, the first speed reduction component is connected with the power device or the support assembly, and the second speed reduction component is connected with the power device or the support assembly. The power device is in transmission connection with the first speed-reducing component, the second speed-reducing component is connected with the support assembly, the first speed-reducing component is in transmission connection with the second speed-reducing component, the driving wheel is provided with a wheel shaft, and the second speed-reducing component is in transmission connection with the driving wheel shaft. The utility model has the beneficial effects that the overload fault of the power device can be avoided, and the equipment cost and the energy consumption of the power device are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to an agricultural machinery traveling mechanism and an agricultural machinery. Background Art

[0002] With the development of agricultural modernization, small agricultural machinery is increasingly being used by farmers in agricultural production activities.

[0003] However, due to the limitation of installation space, small agricultural machinery is often equipped with power units with limited output power. When small agricultural machinery is traveling on hills, mountains or potholed farmland with large slopes, the power unit is easily overloaded due to the large travel resistance, and in severe cases, the power unit may malfunction. In addition, when the small agricultural machinery is bumped or hit during travel, the travel resistance of the travel device will fluctuate, and the travel device will transfer the travel resistance to the power unit, causing the power unit to frequently jam, which can easily cause damage to power units such as motors and hydraulic motors. In order to meet the driving requirements of small agricultural machinery under the above-mentioned working conditions with large travel resistance, existing small agricultural machinery can often only use larger-sized power units to reserve a certain power margin to deal with the above-mentioned problems. However, larger-sized power units will not only occupy the installation space of other equipment of the small agricultural machinery, but will also increase equipment costs and increase energy consumption of the power unit. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an agricultural machinery traveling mechanism and an agricultural machinery which can avoid overload failure of a power device and reduce equipment cost and energy consumption of the power device.

[0005] The utility model is realized through the following technical solutions, which provide an agricultural machinery walking mechanism, including a bracket assembly, a power unit, and a transmission assembly. The bracket assembly is rotatably connected to a drive wheel, the power unit is connected to the bracket assembly, and the transmission assembly includes a first deceleration component and a second deceleration component. The first deceleration component is connected to the power unit or the bracket assembly, the power unit is in transmission connection with the first deceleration component, the second deceleration component is connected to the bracket assembly, the first deceleration component is in transmission connection with the second deceleration component, the drive wheel is provided with a wheel axle, and the second deceleration component is in transmission connection with the wheel axle.

[0006] Compared with the prior art, the beneficial effects of the present invention are: the output torque of the power unit can be amplified by the first deceleration component, and the output torque of the first deceleration component can be further amplified by the second deceleration component, so that the walking mechanism can obtain sufficient power output without increasing the specifications of the power unit, so that when the small agricultural machinery is traveling in hills, mountains or potholes with large slopes, the power unit will not be overloaded or malfunctioned due to the large travel resistance, effectively reducing the equipment cost of the small agricultural machinery and the energy consumption of the power unit; in addition, the power unit, the first deceleration component, and the second deceleration component can be installed at different positions of the walking mechanism respectively, and the transmission connection can be completed only through the transmission shaft and the coupling. The installation method and installation position are more flexible and the installation is simpler, so as to avoid squeezing the installation space of other devices of the small agricultural machinery. At the same time, it also reduces the center of gravity of the power unit, the transmission component and other devices of the small agricultural machinery (such as the mowing component, etc.), thereby reducing the overall center of gravity of the small agricultural machinery and increasing the stability of the small agricultural machinery.

[0007] Preferably, the bracket assembly includes a front bracket, the front bracket is provided with a second positioning portion, the second positioning portion is connected to a first rotating component, the axle of the driving wheel is provided with a first positioning portion, and the axle of the driving wheel is rotatably connected to the front bracket through the first rotating component.

[0008] Preferably, the second positioning portion of the front bracket is connected to a cover plate, and the cover plate is located on a side of the first rotating component away from the driving wheel.

[0009] The beneficial effect of adopting the above preferred technical solution is that the first positioning portion and the cover plate can effectively prevent the driving wheel from axial displacement during operation, further ensuring the stability of the walking mechanism.

[0010] Preferably, the bracket assembly, transmission assembly, and drive wheel are each provided in two groups on the left and right, and a fourth connecting component is connected between the two second deceleration components provided on the left and right. The axis of the fourth connecting component coincides with the axis of the wheel axles of the two drive wheels provided on the left and right.

[0011] Preferably, the two transmission shafts arranged on the left and right sides have different lengths.

[0012] The beneficial effect of adopting the above preferred technical solution is that: through the fourth connecting component, while improving the connection firmness of the second deceleration components on the left and right sides of the traveling mechanism, it can also ensure the coaxiality of the wheel axles of the driving wheels on the left and right sides of the traveling mechanism, thereby preventing the left and right driving wheels from deflecting and vibrating during the travel of the small agricultural machine, and also preventing abnormal wear of the crawler tracks, transmission components, etc., thereby improving the stability and reliability of the traveling mechanism;

[0013] Since the left and right drive shafts have different lengths, installation space can be created for the engine or other devices of the small agricultural machinery. At the same time, the engine or other devices of the small agricultural machinery can be sunk, thereby lowering the overall center of gravity of the small agricultural machinery.

[0014] Preferably, the axle is provided with a third positioning portion, the output shaft of the second deceleration component is provided with a hexagonal inner hole, the cross-section of the third positioning portion is hexagonal, the third positioning portion is plugged into the output shaft of the second deceleration component, and the side surface of the third positioning portion is in contact with the side wall of the inner cavity of the second deceleration component.

[0015] Preferably, the axis of the input shaft of the second deceleration component is 90° to the axis of the output shaft.

[0016] Preferably, the first deceleration component is in transmission connection with the second deceleration component via a transmission shaft, and the axis of the transmission shaft is perpendicular to the axis of the wheel axle.

[0017] The beneficial effect of adopting the above-mentioned preferred technical solution is that when the working mechanism of a small agricultural machinery (such as a mowing mechanism, a rotary tillage mechanism) is located on the driving wheel side of the walking mechanism, it can effectively prevent dust, grass clippings and other debris generated by the working mechanism of the small agricultural machinery from being directly thrown onto the power device.

[0018] Preferably, the bracket assembly includes a front bracket and a rear bracket, and the front bracket is connected to the rear bracket via a first connecting component.

[0019] Preferably, the power device is connected to the rear bracket, the first deceleration component is connected to the power device, and the second deceleration component is connected to the front bracket.

[0020] Preferably, the front bracket and the rear bracket are respectively fixed with a second connecting component and a third connecting component, the third connecting component is slidingly connected to the second connecting component, the third connecting component is rotatably connected to a stud, the second connecting component is fixed with a fixing seat, the fixing seat is threadedly connected to the stud, and the stud is fixed with a first adjustment component.

[0021] Preferably, the second connecting component is a hollow structure, and the outer side surface of the third connecting component is in contact with the inner cavity side wall of the second connecting component.

[0022] Preferably, the bracket assembly is provided with an adjustment opening, the first connecting component is provided with a notch, and the length of the adjustment opening of the bracket assembly is not less than the length of the notch of the first connecting component.

[0023] The beneficial effect of adopting the above-mentioned preferred technical solution is that: since the outer side surface of the third connecting component is in contact with the inner cavity side wall of the second connecting component, when the first adjustment component is rotated, the third connecting component can be driven to slide forward or backward along the second connecting component, thereby driving the rear bracket away from or close to the front bracket, thereby achieving the purpose of adjusting the distance between the front bracket and the rear bracket, which greatly facilitates the installation or disassembly and replacement of the track, power unit, and transmission assembly.

[0024] Preferably, a sixth connecting component is further included, the bracket assembly is connected to the fifth connecting component, the bracket assembly is arranged symmetrically on the left and right, the two sides of the sixth connecting component are respectively connected to the fifth connecting components on the left and right bracket assemblies, and the fifth connecting component is connected to a fixing component.

[0025] The beneficial effect of adopting the above preferred technical solution is that: through the sixth connecting component, the bracket components arranged symmetrically on the left and right can be connected into a whole, and at the same time, the walking mechanism can be easily disassembled, transported or repaired.

[0026] The utility model also provides an agricultural machine, comprising any one of the above-mentioned agricultural machine traveling mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the utility model;

[0028] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0029] Figure 3 It is a schematic diagram of the partial structure of the utility model from another angle;

[0030] Figure 4 It is a structural schematic diagram of the driving wheel in the utility model.

[0031] As shown in the figure:

[0032] 1. Front bracket, 2. Rear bracket, 3. First connecting component, 4. Driving wheel, 5. First rotating component, 6. Cover plate, 7. Power unit, 8. First deceleration component, 9. Second deceleration component, 10. Second connecting component, 11. Third connecting component, 12. Stud, 13. Fixing seat, 14. First adjusting component, 15. Fourth connecting component, 16. Fifth connecting component, 17. Sixth connecting component;

[0033] 401. Axle, 402. First positioning portion, 403. Third positioning portion. DETAILED DESCRIPTION

[0034] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making any creative efforts are within the scope of protection of the present invention.

[0035] Example 1:

[0036] like Figure 1-4 The agricultural machinery walking mechanism shown includes a bracket assembly, a power unit 7, and a transmission assembly that are symmetrically arranged on the left and right. The bracket assembly includes a front bracket 1 and a rear bracket 2. The front bracket 1 is connected to the rear bracket 2 through a first connecting component 3. The first connecting component 3 is symmetrically arranged on the left and right sides of the bracket assembly. The front bracket 1 and the rear bracket 2 are respectively rotatably connected to the driving wheel 4 or the inducer wheel. The front bracket 1 and the rear bracket 2 are both rotatably connected to the supporting wheels. In this embodiment, preferably, the front bracket 1 is rotatably connected to the driving wheel 4, and the rear bracket 2 is rotatably connected to the inducer wheel.

[0037] The driving wheel 4 is provided with an axle 401, and a first positioning portion 402 is respectively provided on the left and right sides of the axle 401, and a second positioning portion is respectively provided on the left and right sides of the front bracket 1, and the second positioning portion is connected to the first rotating component 5. The axle 401 is rotatably connected to the front bracket 1 through the first rotating component 5. The horizontal straight-line distance between the first rotating components 5 on the left and right sides of the front bracket 1 is the same as the horizontal straight-line distance between the first positioning portions 402 on the left and right sides of the axle 401. The first positioning portion 402 can prevent the axle 401 from axial movement, and the second positioning portion is connected to a cover plate 6. The cover plate 6 is located on the side of the first rotating component 5 away from the driving wheel 4. The cover plate 6 can prevent the first rotating component 5 from falling out, and at the same time, it can prevent external debris from entering the first rotating component 5.

[0038] The power device 7 is connected to the front bracket 1, the rear bracket 2 or the first connecting component 3. In this embodiment, preferably, the power device 7 is connected to the rear bracket 2, and the transmission assembly includes a first deceleration component 8 and a second deceleration component 9. The axis of the input shaft of the second deceleration component 9 is 90° to the axis of the output shaft, and the input shaft and output shaft of the second deceleration component 9 are both horizontally arranged. The first deceleration component 8 is connected to the power device 7 or the bracket assembly. In this embodiment, preferably, the first deceleration component 8 is connected to the power device 7, and the output shaft of the power device 7 is transmission-connected to the input shaft of the first deceleration component 8, and the second deceleration component 9 is connected to the front bracket 1. The output shaft of the first deceleration component 8 is transmission-connected to the input shaft of the second deceleration component 9 through a transmission shaft, a universal joint, a coupling or other components with the same function. In this embodiment, preferably, the output shaft of the first deceleration component 8 is transmission-connected to the second deceleration component The input shaft of component 9 is connected through a transmission shaft, the transmission shaft is horizontally arranged, and the axis of the transmission shaft is perpendicular to the axis of the wheel axle 401. The lengths of the two transmission shafts on the left and right sides of the agricultural machinery walking mechanism are the same or different. In this embodiment, preferably, the lengths of the two transmission shafts on the left and right sides are different. The wheel axle 401 is provided with a third positioning portion 403, and the third positioning portion 403 of the wheel axle 401 is plugged into the output shaft of the second deceleration component 9, and the wheel axle 401 is connected to the output shaft of the second deceleration component 9 through the third positioning portion 403. The third positioning portion 403 of the wheel axle 401 is a spline shaft, a flat key, a hexagonal shaft or other structures with the same function. In this embodiment, preferably, the third positioning portion 403 of the wheel axle 401 is a hexagonal shaft structure, and the output shaft of the second deceleration component 9 is provided with a hexagonal inner hole, and the side of the third positioning portion 403 is in contact with the side wall of the inner cavity of the second deceleration component 9.

[0039] With the direction of advance of the agricultural machinery as the longitudinal direction and the direction perpendicular to the horizontal direction of advance of the agricultural machinery as the transverse direction, the front bracket 1 and the rear bracket 2 are respectively fixedly connected with the second connecting component 10 or the third connecting component 11 along the longitudinal direction. In this embodiment, preferably, the front bracket 1 is fixedly connected with the second connecting component 10 along the longitudinal direction, and the rear bracket 2 is fixedly connected with the third connecting component 11 along the longitudinal direction. The second connecting component 10 is a hollow structure, and the third connecting component 11 is slidably connected to the second connecting component 10 through a linear guide rail, a spline shaft, a hexagonal shaft and other structures with the same function. In this embodiment, preferably, the cross-section of the inner cavity of the second connecting component 10 and the cross-section of the third connecting component 11 are both hexagonal, and all the outer side surfaces of the third connecting component 11 are fitted with the inner cavity side wall of the corresponding second connecting component 10. The end of the third connecting component 11 close to the front bracket 1 is rotatably connected to the stud 12, and the end of the second connecting component 10 away from the third connecting component 11 is fixed with the fixing seat 1 3. The fixing seat 13 is threadedly connected to the stud 12, and one end of the stud 12 close to the front bracket 1 is fixedly connected to the first adjusting component 14. The first adjusting component 14 is a sprocket, a handwheel or other components with the same function. In this embodiment, preferably, the first adjusting component 14 is a sprocket, and an adjustment port for rotating the first adjusting component 14 is provided on the side of the front bracket 1. The first connecting component 3 is provided with a notch for adjusting the distance between the front bracket 1 and the rear bracket 2. The length of the adjustment port of the front bracket 1 is not less than the length of the notch of the first connecting component 3. By rotating the sprocket, the third connecting component 11 can be driven to slide in the second connecting component 10, thereby quickly adjusting the distance between the front bracket 1 and the rear bracket 2, thereby facilitating the installation or disassembly and replacement of the crawler track. When rotating the sprocket, it can be rotated manually or by putting a chain on the sprocket. In this embodiment, preferably, the sprocket is driven to rotate by the chain by putting a chain on the sprocket.

[0040] A fourth connecting component 15 is connected between the second deceleration components 9 on the bracket assembly that is symmetrically arranged on the left and right. The axis of the fourth connecting component 15 coincides with the axis of the output shaft of the second deceleration component 9 and the axis of the axle 401 of the driving wheel 4. The fourth connecting component 15 can ensure the stability and safety of the traveling mechanism.

[0041] The left and right sides of the front bracket 1 and the rear bracket 2 are respectively connected with a fifth connecting component 16, which is a hollow structure. The sixth connecting component 17 is connected inside the fifth connecting component 16, and the fifth connecting part is fixedly connected to the sixth connecting component 17 through a fixing component. The fixing component is a screw, a positioning pin or other components with the same function. In this embodiment, preferably, the fixing component is a screw, and the bracket components symmetrically arranged on the left and right are connected through the sixth connecting component 17, and at least one sixth connecting component 17 is provided between the bracket components symmetrically arranged on the left and right.

[0042] This embodiment also provides an agricultural machine that uses the above-mentioned agricultural machine travel mechanism, which can be a rotary tiller, a weeder, a harvester, a seed drill, or other agricultural machine, and will not be given specific examples.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, persons of ordinary skill in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents; and such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A traveling mechanism of an agricultural machine, characterized in that: The invention comprises a support assembly, a power device (7), a transmission assembly, and a transmission shaft. The support assembly is rotatably connected to a driving wheel (4). The power device (7) is connected to the support assembly. The transmission assembly comprises a first deceleration component (8) and a second deceleration component (9). The first deceleration component (8) is connected to the power device (7) or the support assembly. The power device (7) is transmission-connected to the first deceleration component (8). The second deceleration component (9) is connected to the support assembly. The first deceleration component (8) is transmission-connected to the second deceleration component (9). The driving wheel (4) is provided with a wheel shaft (401). The second deceleration component (9) is transmission-connected to the wheel shaft (401).

2. The agricultural machinery traveling mechanism according to claim 1, characterized in that: The support assembly comprises a front support (1), the front support (1) being provided with a second positioning portion, the second positioning portion being connected to a first rotating component (5), the axle (401) of the driving wheel (4) being provided with a first positioning portion (402), and the axle (401) of the driving wheel (4) being rotationally connected to the front support (1) via the first rotating component (5).

3. The agricultural machinery traveling mechanism according to claim 1, characterized in that: The bracket assembly, transmission assembly, and driving wheel (4) are each provided in two groups on the left and right sides. A fourth connecting component (15) is connected between the two second deceleration components (9) provided on the left and right sides. The axis of the fourth connecting component (15) and the axis of the wheel axles (401) of the two driving wheels (4) provided on the left and right sides coincide with each other. The lengths of the two transmission shafts provided on the left and right sides are different.

4. The agricultural machinery traveling mechanism according to claim 1, characterized in that: The wheel axle (401) is provided with a third positioning portion (403), the output shaft of the second deceleration component (9) is provided with a hexagonal inner hole, the cross section of the third positioning portion (403) is hexagonal, the third positioning portion (403) is plugged into the output shaft of the second deceleration component (9), and the side surface of the third positioning portion (403) is in contact with the side wall of the inner cavity of the second deceleration component (9).

5. The agricultural machinery traveling mechanism according to claim 1, characterized in that: The bracket assembly comprises a front bracket (1) and a rear bracket (2), wherein the front bracket (1) is connected to the rear bracket (2) via a first connecting component (3).

6. The agricultural machinery traveling mechanism according to claim 5, characterized in that: The front bracket (1) and the rear bracket (2) are respectively fixedly connected with a second connecting component (10) and a third connecting component (11); the third connecting component (11) is slidably connected to the second connecting component (10); the third connecting component (11) is rotatably connected to a stud (12); the second connecting component (10) is fixedly connected to a fixing seat (13); the fixing seat (13) is threadedly connected to the stud (12); and the stud (12) is fixedly connected to a first adjusting component (14).

7. The agricultural machinery traveling mechanism according to claim 6, characterized in that: The second connecting component (10) is a hollow structure, and the outer side surface of the third connecting component (11) is in contact with the inner cavity side wall of the second connecting component (10).

8. The agricultural machinery traveling mechanism according to claim 5, characterized in that: The bracket assembly is provided with an adjustment opening, the first connecting component (3) is provided with a notch, and the length of the adjustment opening of the bracket assembly is not less than the length of the notch of the first connecting component (3).

9. The agricultural machinery traveling mechanism according to claim 1, characterized in that: The invention also includes a sixth connecting component (17), the bracket assembly is connected to the fifth connecting component (16), the bracket assembly is arranged symmetrically on the left and right sides, the two sides of the sixth connecting component (17) are respectively connected to the fifth connecting components (16) on the bracket assemblies on the left and right sides, and the fifth connecting component (16) is connected to a fixing component.

10. The agricultural machinery traveling mechanism according to claim 2, characterized in that: The second positioning portion of the front bracket (1) is connected to a cover plate (6), and the cover plate (6) is located on a side of the first rotating component (5) away from the driving wheel (4).

11. The agricultural machinery traveling mechanism according to claim 4, characterized in that: The axis of the input shaft of the second deceleration component (9) is at 90° to the axis of the output shaft; the first deceleration component (8) is connected to the second deceleration component (9) through a transmission shaft, and the axis of the transmission shaft is perpendicular to the axis of the wheel axle (401).

12. The agricultural machinery traveling mechanism according to claim 5, characterized in that: The power device (7) is connected to the rear bracket (2), the first deceleration component (8) is connected to the power device (7), and the second deceleration component (9) is connected to the front bracket (1).

13. An agricultural machine, characterized in that: The agricultural machinery traveling mechanism includes any one of claims 1 to 12.

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