Irrigation and water conservancy excavating device

Abstract

The utility model relates to the technical field of water conservancy irrigation engineering, in particular to a farmland water conservancy excavating device. Comprising a U-shaped frame, a first slewing bearing and a second slewing bearing, the outer ring of the first slewing bearing and the outer ring of the second slewing bearing are sleeved with a first installation ring and a second installation ring respectively, and a plurality of buckets are installed between the second installation ring and the first installation ring; the inner ring of the first slewing bearing and the inner ring of the second slewing bearing are both installed on the U-shaped frame. A first gear ring and a second gear ring are installed on the outer ring of the first slewing bearing and the outer ring of the second slewing bearing respectively, a belt conveyor is further installed on the U-shaped frame and penetrates through the first installation ring and the second installation ring, a driving assembly is installed on the U-shaped frame, and the output end of the driving assembly is in driving connection with the first gear ring, the second gear ring and the belt conveyor. And a mounting frame is also mounted on the U-shaped frame. The excavator is compact in structure and high in excavating efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water conservancy irrigation engineering, and specifically relates to a farmland water conservancy excavating device. BACKGROUND

[0002] The development of agriculture is highly dependent on water conservancy facilities. Among many water conservancy facilities, a water channel is an important facility for introducing water from a water source to a field. In traditional agriculture, the excavation of a water channel is usually completed by manpower, but the labor intensity of manpower excavation is high, and the efficiency is low. With the popularization of engineering machinery, excavators are used to excavate water channels, but large excavators cannot enter the interior of a farmland due to their excessive weight, and small excavators have small buckets and low excavation efficiency. SUMMARY

[0003] In view of the above problems, the utility model provides a farmland water conservancy excavating device to solve the problem of low water channel excavation efficiency in the prior art.

[0004] The utility model is implemented by using the following technical scheme: a farmland water conservancy excavating device, comprising a U-shaped frame, a first rotary support and a second rotary support, a first mounting ring is fixedly sleeved on the outer ring of the first rotary support, a second mounting ring is fixedly sleeved on the outer ring of the second rotary support, a plurality of buckets are fixedly installed between the second mounting ring and the first mounting ring, the plurality of buckets are arranged in a circumferential array, and the inner rings of the first rotary support and the second rotary support are fixedly installed on the U-shaped frame; a first gear ring is fixedly installed on the outer ring of the first rotary support, a second gear ring is fixedly installed on the outer ring of the second rotary support, a belt conveyor is also fixedly installed on the U-shaped frame, the belt conveyor passes through the first mounting ring and the second mounting ring, a driving assembly is fixedly installed on the U-shaped frame, the output end of the driving assembly is drivingly connected with the first gear ring, the second gear ring and the belt conveyor, and a mounting bracket is also fixedly installed on the U-shaped frame. By adopting the mounting bracket, the device is installed on the lifting device of a tractor, the input end of the driving assembly is drivingly connected with the output shaft at the tail of the tractor, so that the bucket and the belt conveyor can be driven to operate by one set of driving assembly, the excavation and the transportation of soil are completed, the structure is compact, the excavation of the water channel is realized by the continuous rotation of the plurality of buckets, the water channel can be excavated and formed at one time, and the efficiency is improved.

[0005] The U-shaped frame comprises a first side frame and a second side frame fixedly installed at both ends of the end frame, the inner ring of the second rotary support is installed on one side of the second side frame close to the first side frame, and the inner ring of the first rotary support is installed on one side of the first side frame close to the second side frame. By adopting the structure, the personnel around the device can be prevented from touching the gear ring, and the safety is improved.

[0006] The driving assembly comprises a gearbox fixedly installed on the top of the end frame, a first output shaft of the gearbox is fixedly connected with the first end of a first driving shaft through a first coupling, a seventh bevel gear is fixedly installed on the second end of the first driving shaft, the seventh bevel gear is engaged with an eighth bevel gear fixedly installed on the first end of a second driving shaft, a first bevel gear is fixedly installed on the second end of the second driving shaft, the first bevel gear is engaged with a second bevel gear fixedly installed on the first end of a sixth driving shaft, a first gear engaged with a first gear ring is fixedly installed on the second end of the sixth driving shaft; a second output shaft of the gearbox is fixedly connected with the first end of a fifth driving shaft through a second coupling, a sixth bevel gear is fixedly installed on the second end of the fifth driving shaft, the sixth bevel gear is engaged with a fifth bevel gear fixedly installed on the first end of a fourth driving shaft, a fourth bevel gear is fixedly installed on the middle of the fourth driving shaft, the fourth bevel gear is engaged with a third bevel gear fixedly installed on the first end of a third driving shaft, a second gear engaged with a second gear ring is fixedly installed on the second end of the third driving shaft, and the second end of the fourth driving shaft is fixedly connected with a driving roller of the belt conveyor through a third coupling. By adopting the structure, the bucket and the belt conveyor can be driven synchronously by adopting one set of driving assembly, the problem that the soil falls back into the water channel due to the asynchronous operation of the belt conveyor and the bucket is avoided, and the transmission efficiency can be improved and the transmission process can be more stable by adopting the combination of the driving shaft and the bevel gear.

[0007] The first side frame is also fixedly provided with a first bearing seat, the sixth driving shaft passes through the first bearing seat and is rotationally connected with the first bearing seat through a first bearing. By adopting the structure, the operation of the sixth driving shaft can be more stable.

[0008] The second side frame is also fixedly provided with a second bearing seat, the third driving shaft passes through the second bearing seat and is rotationally connected with the second bearing seat through a fourth bearing. By adopting the structure, the operation of the third driving shaft can be more stable.

[0009] The first bevel gear and the second bevel gear are located in the fourth protective shell, the third bevel gear, the fourth bevel gear, the fifth bevel gear and the sixth bevel gear are located in the second protective shell, the seventh bevel gear and the eighth bevel gear are located in the third protective shell, the second protective shell and the third protective shell are fixedly installed on the end frame, the first protective shell is fixedly installed on the second side frame, and the fourth protective shell is fixedly installed on the first side frame. By adopting the structure, the transmission between the bevel gears engaged with each other in the next year can be prevented from being affected by the soil.

[0010] The bucket comprises a bottom plate, two inclined side plates are welded and fixed on both sides of the bottom plate, a back plate is welded and fixed on the first end of the bottom plate and the first end of the side plate, and the two side plates are respectively fixed on the first mounting ring and the second mounting ring.

[0011] The bottom plate is in a circular arc shape, and the center of the circular arc is located on the same straight line as the center of the second mounting ring and the center of the first mounting ring.

[0012] The technical scheme of the utility model has the following advantages:

[0013] The utility model is installed on a tractor during use, and a driving assembly is drivingly connected with an output end of the tail of the tractor, so that the bucket and the belt conveyor are driven to operate by the driving assembly, and the structure is compact. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a side view structural schematic view of the utility model;

[0017] Figure 3 It is a front view structural schematic view of the utility model;

[0018] Figure 4 It is a structural schematic view of the driving assembly Figure 1 ;

[0019] Figure 5 It is a structural schematic view of the driving assembly Figure 2 ;

[0020] Figure 6 It is a structural schematic view of the mounting frame;

[0021] Figure 7 It is a structural schematic view of the bucket.

[0022] In the figure: 1 - mounting frame, 2 - U-shaped frame, 3 - gearbox, 4 - first output shaft, 5 - first coupling, 6 - first drive shaft, 7 - second drive shaft, 8 - first mounting ring, 9 - first connecting frame, 10 - belt conveyor, 11 - first ring gear, 12 - first slewing bearing, 13 - bucket, 14 - third drive shaft, 15 - fourth drive shaft, 16 - fifth drive shaft, 17 - second ring gear, 18 - second slewing bearing, 19 - second mounting ring, 20 - second output shaft, 21 - second coupling, 22 - first bearing seat, 23 - first gear, 24 - second gear, 25 - second bearing seat, 26 - first protective shell, 27 - second protective shell, 28 - third protective shell, 29 - fourth protective shell, 30 - first bevel gear, 31 - second bevel gear, 32 - third bevel gear, 33 - fourth bevel gear, 34 - fifth bevel gear, 35 - sixth bevel gear, 36 - seventh bevel gear, 37 - eighth bevel gear, 38 - first connecting plate, 39 - second connecting plate, 40 - first inclined arm, 41 - third connecting plate, 42 - first supporting arm, 43 - fourth connecting plate, 44 - fifth connecting plate, 45 - sixth connecting plate, 46 - second inclined arm, 47 - back plate, 48 - bottom plate, 49 - side plate. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application will be further described in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0024] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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 therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] The following is a description of the preferred embodiments of the present application in conjunction with the accompanying drawings.

[0026] As shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 7 The utility model provides a kind of farmland water conservancy excavating device, including U-shaped frame 2, first slewing bearing 12, second slewing bearing 18, the U-shaped frame 2 includes first side frame, second side frame and end frame, wherein, first side frame, second side frame are respectively fixedly installed in the both ends of end frame, to form a complete U-shaped frame 2.

[0027] The aforementioned first slewing bearing 12 is fitted inside the first mounting ring 8. Specifically, the outer diameter of the first slewing bearing 12 is equal to the inner diameter of the first mounting ring 8, and the first mounting ring 8 is fixedly connected to the outer ring of the first slewing bearing 12, that is, the first mounting ring 8 is fixedly fitted onto the outer ring of the first slewing bearing 12. The inner ring of the first slewing bearing 12 is fixedly connected to the first side frame by bolts.

[0028] The aforementioned second slewing bearing 18 is fitted inside the second mounting ring 19. Specifically, the outer diameter of the second slewing bearing 18 is equal to the inner diameter of the second mounting ring 19, and the second mounting ring 19 is fixedly connected to the outer ring of the second slewing bearing 18, that is, the second mounting ring 19 is fixedly fitted onto the outer ring of the second slewing bearing 18. The inner ring of the second slewing bearing 18 is fixedly connected to the second side frame by bolts.

[0029] The centers of the second slewing bearing 18 and the first slewing bearing 12 are located on the same straight line.

[0030] Six buckets 13 are fixedly installed between the second mounting ring 19 and the first mounting ring 8. These six buckets 13 are arranged in a circular array with the second mounting ring 19 as the center. Of course, the number of buckets 13 can also be five, seven or more.

[0031] A belt conveyor 10 is also fixedly installed on the U-shaped frame 2. Specifically, the first end of the belt conveyor 10 is fixedly connected to the first side frame through the first connecting frame 9, and the second end is fixedly connected to the second side frame through the second connecting frame.

[0032] The belt conveyor 10 passes through the first mounting ring 8 and the second mounting ring 19, and the length of the belt conveyor 10 is greater than the distance between the first mounting ring 8 and the second mounting ring 19.

[0033] A first gear ring 11 is fixedly installed on the outer ring of the first slewing bearing 12, and a second gear ring 17 is fixedly installed on the outer ring of the second slewing bearing 18.

[0034] A drive assembly is fixedly installed on the U-shaped frame 2. The output end of the drive assembly is connected to the first gear ring 11, the second gear ring 17, and the belt conveyor 10, and is used to drive the bucket 13 and the belt conveyor 10 to run simultaneously.

[0035] A mounting bracket 1 is also fixedly installed on the U-shaped frame 2. The mounting bracket 1 is used to connect the entire mechanism to the lifting mechanism of the tractor.

[0036] The input end of the drive assembly is connected to the rear output shaft of the tractor via a universal coupling. The tractor drives the bucket 13 and the conveyor belt 10 through the drive assembly. The bucket 13 rotates counterclockwise to dig. When the bucket 13 rotates above the conveyor belt 10, the soil in the bucket 13 will fall onto the conveyor belt 10 under the action of inertia and gravity, and then be conveyed to one side by the conveyor belt 10 to prevent the soil from falling into the ditch.

[0037] In this embodiment, the first gear ring 11 is fixedly installed on the side of the first slewing bearing 12 away from the second slewing bearing 18, and the second gear ring 17 is fixedly installed on the side of the second slewing bearing 18 away from the first slewing bearing 12. This makes maintenance easier and also prevents dirt from falling onto the first gear ring 11 and the second gear ring 17.

[0038] The structure of the driver component is shown in the attached figure. Figure 1 Appendix Figure 3 Appendix Figure 4 and attached Figure 5 As shown, the gearbox 3 is fixedly mounted on the top of the end frame. A first output shaft 4 and a second output shaft 20 are respectively mounted on both sides of the gearbox 3. The first output shaft 4 is fixedly connected to the first end of the first drive shaft 6 through a first coupling 5. A seventh bevel gear 36 is fixedly mounted on the second end of the first drive shaft 6. The seventh bevel gear 36 meshes with an eighth bevel gear 37. The eighth bevel gear 37 is fixedly mounted on the first end of the second drive shaft 7. A first bevel gear 30 is fixedly mounted on the second end of the second drive shaft 7. The first bevel gear 30 meshes with a second bevel gear 31. The second bevel gear 31 is fixedly mounted on the first end of the sixth drive shaft. A first gear 23 is fixedly mounted on the second end of the sixth drive shaft. The first gear 23 meshes with a first gear ring 11.

[0039] The second output shaft 20 is fixedly connected to the first end of the fifth drive shaft 16 via the second coupling 21. The second end of the fifth drive shaft 16 is fixedly mounted with a sixth bevel gear 35, which meshes with the fifth bevel gear 34. The fifth bevel gear 34 is fixedly mounted on the first end of the fourth drive shaft 15. The middle part of the fourth drive shaft 15 is fixedly mounted with a fourth bevel gear 33, which meshes with the third bevel gear 32. The third bevel gear 32 is fixedly mounted on the first end of the third drive shaft 14. The second end of the third drive shaft 14 is fixedly mounted with a second gear 24, which meshes with the second gear ring 17.

[0040] By using a gearbox 3 to drive the first gear 23 and the second gear 24 to operate synchronously, the bucket 13 can be subjected to more balanced forces and operate more stably during digging.

[0041] The first side frame is further fixedly provided with a fourth protective shell 29 and a first bearing seat 22, the sixth drive shaft passes through the first bearing seat 22 and is rotationally connected with the first bearing seat 22 through a first bearing; a first bevel gear 30 and a second bevel gear 31 are located in the fourth protective shell 29, and the sixth drive shaft and the second drive shaft 7 are rotationally connected with the fourth protective shell 29 through a second bearing and a third bearing. The fourth protective shell 29 is used for protecting the first bevel gear 30 and the second bevel gear 31 and maintaining the stability of the sixth drive shaft and the second drive shaft 7.

[0042] The second side frame is further fixedly provided with a second bearing seat 25 and a first protective shell 26, the third drive shaft 14 passes through the second bearing seat 25 and is rotationally connected with the second bearing seat 25 through a fourth bearing; a third bevel gear 32 and a fourth bevel gear 33 are located in the first protective shell 26, and the third drive shaft 14 and the fourth drive shaft 15 are rotationally connected with the first protective shell 26 through a fifth bearing and a sixth bearing. The first protective shell 26 is used for protecting the third bevel gear 32 and the fourth bevel gear 33 and maintaining the stability of the third drive shaft 14 and the fourth drive shaft 15.

[0043] The end frame is further fixedly provided with a second protective shell 27 and a third protective shell 28, wherein the fifth bevel gear 34 and the sixth bevel gear 35 are located in the second protective shell 27, the fourth drive shaft 15 and the fifth drive shaft 16 are rotationally connected with the second protective shell 27 through a seventh bearing and an eighth bearing; the seventh bevel gear 36 and the eighth bevel gear 37 are located in the third protective shell 28, and the first drive shaft 6 and the second drive shaft 7 are rotationally connected with the third protective shell 28 through a ninth bearing and a tenth bearing. The second protective shell 27 is used for protecting the fifth bevel gear 34 and the sixth bevel gear 35 and maintaining the stability of the fourth drive shaft 15 and the fifth drive shaft 16. The third protective shell 28 is used for protecting the seventh bevel gear 36 and the eighth bevel gear 37 and maintaining the stability of the first drive shaft 6 and the second drive shaft 7.

[0044] The second end of the fourth drive shaft 15 is fixedly connected with the driving roller of the belt conveyor 10 through a third coupling, so as to drive the belt conveyor 10. By adopting the structure, the simultaneous operation of the belt conveyor 10 and the bucket 13 is realized through a set of driving assembly, and the structure is simplified.

[0045] The structure of the mounting frame 1 is shown in the accompanying drawings. Figure 6 The mounting frame 1 is fixedly provided with a first connecting plate 38 and a second connecting plate 39 which are respectively fixedly provided on the first side frame and the second side frame, the first connecting plate 38 is bolted with the first end of the second inclined arm 46, and the second connecting plate 39 is bolted with the first end of the first inclined arm 40.

[0046] The second end of the second inclined arm 46 is connected with the first end of the first supporting arm 42 by a bolt, and the second end of the first supporting arm 42 is welded and fixed on the end frame; the second end of the first inclined arm 40 is connected with the first end of the first supporting arm 42 by a bolt, and the second end of the first supporting arm 42 is welded and fixed on the end frame.

[0047] The fourth connecting plate 43 is also installed on the first end of the first supporting arm 42 by a bolt, and the sixth connecting plate 45 is also installed on the first end of the second supporting arm by a bolt, and a gap is left between the fourth connecting plate 43 and the sixth connecting plate 45.

[0048] The fourth connecting plate 43 and the sixth connecting plate 45 are provided with first connecting holes for connecting the tractor.

[0049] The end frame is also provided with the third connecting plate 41 and the fifth connecting plate 44 at both ends, respectively, and the third connecting plate 41 and the fifth connecting plate 44 are provided with second connecting holes and third connecting holes for connecting the tractor.

[0050] In use, the device is installed on the tractor through the mounting frame 1. The tractor drives the bucket 13 and the belt conveyor 10 to operate simultaneously through the gearbox 3, the bucket 13 digs, and the belt conveyor 10 transports the soil dug by the bucket 13 to one side. The tractor can complete the excavation of the water channel during the forward movement.

[0051] The structure of the bucket 13 is shown in the accompanying drawings Figure 7 The bucket 13 includes a bottom plate 48, both sides of the bottom plate 48 are welded and fixed with inclined side plates 49, the first end of the bottom plate 48 and the first end of the side plate 49 are welded and fixed with the back plate 47, forming a dustpan shape with an isosceles trapezoidal cross section. The bottom plate 48 is circular arc-shaped, and the centers of the circular arcs of the first mounting ring 8 and the second mounting ring 19 are located on the same straight line. The two side plates 49 are fixedly installed on the first mounting ring 8 and the second mounting ring 19, respectively. The bucket 13 with this structure can dig a more stable water channel structure, without the need for subsequent reinforcement construction.

[0052] In this embodiment, the inner ring of the second slewing bearing 18 is installed on the side of the second side frame close to the first side frame, and the inner ring of the first slewing bearing 12 is installed on the side of the first side frame close to the second side frame; as shown in the accompanying drawings Figure 4 to Figure 6 The second side frame and the first side frame are respectively provided with avoidance grooves corresponding to the first ring gear 11 and the second ring gear 17.

[0053] Obviously, the above embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be enumerated. The changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An agricultural water conservancy digging device, characterized by, The utility model provides a kind of excavator, including U-shaped frame (2), first slewing bearing (12), second slewing bearing (18), the first mounting ring (8) is fixedly sleeved on the outer ring of first slewing bearing (12), the second mounting ring (19) is fixedly sleeved on the outer ring of second slewing bearing (18), between the second mounting ring (19) and first mounting ring (8) fixedly installed are several shovels (13), several the shovels (13) are arranged in circumferential array, the inner ring of first slewing bearing (12), second slewing bearing (18) is fixedly installed on U-shaped frame (2);The outer ring of first slewing bearing (12) is fixedly installed with first ring gear (11), the outer ring of second slewing bearing (18) is fixedly installed with second ring gear (17), belt conveyor (10) is also fixedly installed on U-shaped frame (2), belt conveyor (10) passes through first mounting ring (8) and second mounting ring (19), drive assembly is fixedly installed on U-shaped frame (2), the output end of drive assembly is drivenly connected with first ring gear (11), second ring gear (17), belt conveyor (10), installation frame (1) is also fixedly installed on U-shaped frame (2).

2. The farmland water conservancy digging device according to claim 1, characterized in that, The U-shaped frame (2) includes first side frame and second side frame fixedly installed at both ends of the end frame respectively, the inner ring of the second slewing bearing (18) is installed on the side of the second side frame close to the first side frame, and the inner ring of the first slewing bearing (12) is installed on the side of the first side frame close to the second side frame.

3. The farmland water conservancy digging device according to claim 2, characterized in that, The drive assembly includes a gearbox (3) fixedly installed at the top of the end frame, a first output shaft (4) of the gearbox (3) is fixedly connected with a first end of a first drive shaft (6) through a first coupling (5), a seventh bevel gear (36) is fixedly installed at a second end of the first drive shaft (6), the seventh bevel gear (36) is engaged with an eighth bevel gear (37) fixedly installed at a first end of a second drive shaft (7), a first bevel gear (30) is fixedly installed at a second end of the second drive shaft (7), the first bevel gear (30) is engaged with a second bevel gear (31) fixedly installed at a first end of a sixth drive shaft, a first gear (23) engaged with the first ring gear (11) is fixedly installed at a second end of the sixth drive shaft; a second output shaft (20) of the gearbox (3) is fixedly connected with a first end of a fifth drive shaft (16) through a second coupling (21), a sixth bevel gear (35) is fixedly installed at a second end of the fifth drive shaft (16), the sixth bevel gear (35) is engaged with a fifth bevel gear (34) fixedly installed at a first end of a fourth drive shaft (15), a fourth bevel gear (33) is fixedly installed at a middle part of the fourth drive shaft (15), the fourth bevel gear (33) is engaged with a third bevel gear (32) fixedly installed at a first end of a third drive shaft (14), a second gear (24) engaged with the second ring gear (17) is fixedly installed at a second end of the third drive shaft (14), the second end of the fourth drive shaft (15) is fixedly connected with a driving roller of the belt conveyor (10) through a third coupling.

4. The farmland water conservancy digging device according to claim 3, characterized in that, The first side frame is also fixedly provided with a first bearing seat (22), and the sixth driving shaft passes through the first bearing seat (22) and is rotationally connected with the first bearing seat (22) through a first bearing.

5. The farmland water conservancy digging device according to claim 3, characterized in that, The second side frame is also fixedly provided with a second bearing seat (25), and the third driving shaft (14) passes through the second bearing seat (25) and is rotationally connected with the second bearing seat (25) through a fourth bearing.

6. The farmland water conservancy digging device according to claim 3, characterized in that, The first bevel gear (30) and the second bevel gear (31) are located in the fourth protective shell (29), the third bevel gear (32) and the fourth bevel gear (33), the fifth bevel gear (34) and the sixth bevel gear (35) are located in the second protective shell (27), and the seventh bevel gear (36) and the eighth bevel gear (37) are located in the third protective shell (28). The second protective shell (27) and the third protective shell (28) are fixedly installed on the end frame, the first protective shell (26) is fixedly installed on the second side frame, and the fourth protective shell (29) is fixedly installed on the first side frame.

7. The farmland water conservancy digging device according to claim 1, characterized in that, The bucket (13) comprises a bottom plate (48), and the two sides of the bottom plate (48) are fixedly welded with inclined side plates (49). The first end of the bottom plate (48) and the first end of the side plate (49) are fixedly welded with the back plate (47). The two side plates (49) are fixedly installed on the first mounting ring (8) and the second mounting ring (19) respectively.

8. The farmland water conservancy digging device according to claim 7, characterized in that, The bottom plate (48) is in a circular arc shape, and the center of the circular arc is located on the same straight line as the center of the second mounting ring (19) and the first mounting ring (8).

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