Knife structure of rotary cultivator

Abstract

The rotary cultivator cutter structure comprises a rotating shaft, a plurality of fixing discs are welded to the outer side of the rotating shaft, a plurality of buffering arc-shaped grooves are formed in the outer side surface of one end of each fixing disc in a penetrating mode, a stabilizing base is fixed to the outer side of one end of each fixing disc through a bolt, and a flat-bottom sliding groove is formed in the attaching position of one end of each stabilizing base and the corresponding fixing disc; according to the scheme, the buffering mechanism is arranged on the inner side of the fixing disc, the fixing base of the rotary blade is embedded into the buffering mechanism in a sliding mode, and therefore when the rotary blade is subjected to resistance, blade breakage caused by continuous downward pressing can be avoided through buffering; by increasing the elastic force of the spring and the friction force at the joint of the rotary blade fixing seat and the buffer mechanism, when the rotary blade performs rotary tillage on objects with small resistance such as land, the rebounding buffer effect is avoided, the rebounding effect of the rotary blade is achieved, and compared with the prior art, the rotary blade has longer service life.

Description

Technical Field

[0001] The present application relates to the technical field of rotary tillers, and in particular to a rotary tiller blade structure. Background Art

[0002] A rotary tiller is a tilling machine that is used in conjunction with a tractor to complete plowing and harrowing operations. The rotary tiller blade structure is an important structure that enables the rotary tiller to till the land. It has been widely used because of its strong soil crushing ability and flat surface after plowing. At the same time, it can cut up the root stubble buried below the surface, facilitating the operation of the seeder and providing a good seed bed for later sowing.

[0003] Compared with the existing rotary tiller blade structures in actual use, one of them is to fix the rotary tiller blade directly to the outside of the shaft through bolts. Although this fixing method is very convenient, when rotary tilling some land close to the mountain, the rotary tiller blade often breaks due to the presence of stones in the land, thereby affecting the rotary tillage efficiency of the land and further affecting the grain planting cycle.

[0004] Therefore, in order to solve the above problems, the present application provides a rotary tiller knife structure.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to solve the problem that rotary tiller blades are easily broken, the present application provides a rotary tiller blade structure.

[0007] The cam-shaped tire pressure gauge as claimed in claim 1, wherein the two guide wheels are provided with a plurality of rotations of the two guide wheels, and the two guide wheels are provided with a plurality of rotations of the two guide wheels respectively.

[0008] Preferably, the flat-bottomed slide groove corresponds to one end of the buffer arc groove, and the guide rod welded on the inner side of the flat-bottomed slide groove is in an arc shape.

[0009] Preferably, one end of the buffer spring is connected to the sliding gasket, and the other end of the buffer spring is connected to the inner wall of one end of the flat-bottomed slide groove.

[0010] Preferably, a plurality of caps are welded on the outer surface of one end of the fixing groove seat.

[0011] Preferably, one end surface of the slide groove closing plate is in contact with the outer side surface of the engaging pad.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. By arranging a buffer mechanism on the inner side of the fixed plate, the fixed seat of the rotary tiller is slidably embedded in the buffer mechanism, so that the rotary tiller can avoid the blade breakage caused by continuous downward pressure through buffering when encountering resistance. By increasing the elastic force of the spring and the friction force at the connection between the rotary tiller fixed seat and the buffer mechanism, the rotary tiller will not have a rebound buffering effect when tilling objects with little resistance such as land, thereby achieving the rebound effect of the rotary tiller. Compared with the existing technology, it has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the rotating shaft installation structure in the first embodiment of the present application;

[0015] Figure 2 It is a schematic diagram of the installation structure of the chute closing plate in the first embodiment of the present application;

[0016] Figure 3 It is a schematic diagram of the card cap installation structure in the first embodiment of the present application;

[0017] Figure 4 It is a schematic diagram of the guide rod installation structure in Example 1 of the present application.

[0018] Explanation of the reference numerals: 1. rotating shaft; 2. fixed plate; 3. buffer arc groove; 4. stabilizing seat; 5. flat-bottomed slide groove; 6. guide rod; 7. sliding gasket; 8. buffer spring; 9. connecting slider; 10. engaging pad; 11. slide groove closing plate; 12. fixed seat; 13. fixed groove seat; 14. clamping cap; 15. rotary cutter. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0020] Embodiment 1

[0021] Reference Figure 1-Figure 4A rotary tiller blade structure includes a rotating shaft 1, a plurality of fixed plates 2 are welded on the outer side of the rotating shaft 1, a plurality of buffer arc grooves 3 are penetrated on the outer surface of one end of the fixed plate 2, a stabilizing seat 4 is fixed on the outer side of one end of the fixed plate 2 by bolts, a flat bottom slide groove 5 is opened at the joint between one end of the stabilizing seat 4 and the fixed plate 2, a guide rod 6 is welded on the inner side of the flat bottom slide groove 5, a sliding gasket 7 is sleeved on the outer side of the guide rod 6, a buffer spring 8 is sleeved on the outer side of the guide rod 6, a connecting slider 9 is welded on one end of the sliding gasket 7 to provide a buffering effect, a fitting pad 10 is welded on one end of the fixed plate 2 at the outer edge of the buffer arc groove 3, and a slide groove closing plate is welded on one end of the connecting slider 9 11. In order to ensure the closure degree and prevent mud from entering along the seam, a fixing seat 12 is fixed to the outer surface of one end of the slide closure plate 11 by bolts, and a fixing groove seat 13 is welded to the outer side of one end of the fixing seat 12. A rotary knife 15 is fixed to the inner side of the fixing groove seat 13 by bolts. The flat-bottom slide 5 corresponds to one end of the buffer arc groove 3. The guide rod 6 welded on the inner side of the flat-bottom slide 5 is arc-shaped. The buffer spring 8 is connected to one end of the sliding gasket 7, and the other end of the buffer spring 8 is connected to the inner wall of one end of the flat-bottom slide 5. A number of card caps 14 are welded to the outer surface of one end of the fixing groove seat 13. In order to facilitate the fixing of the bolts, the surface of one end of the slide closure plate 11 fits with the outer surface of the interlocking pad 10.

[0022] Working principle: First, the operator installs the shaft 1 inside the rotary tiller, and then connects the rotary tiller to it through a motorized device. After entering the land to be rotary tilled, the rotary tiller is started. At that time, the rotary tiller will drive the shaft 1 to rotate, and the shaft 1 will drive a number of fixed disks 2 welded on its outer side to rotate, and the fixed disk 2 will drive the rotary cutters 15 fixed on its outer side by bolts to rotate, so that the land is rotary tilled by a number of rotary cutters 15. During the rotary tillage process, if the bottom end of the rotary cutter 15 is pressed down on a stone, the rotary cutter 15 will rebound in the direction of pressure application because it cannot continue to press down. During this period, the rotary cutter 15 will drive the fixed seat 12 at its bottom end to slide together, and the fixed seat 12 will drive the slideway closing plate 11 connected to it by bolts to slide, and the slideway closing plate 11 will drive the connecting slider 9 welded on the other side to slide;

[0023] During this period, the connecting slider 9 will slide inside the buffer arc groove 3 opened on the outer side of one end of the fixed plate 2, and the slide groove closing plate 11 will fit with the embedded pad 10 welded on the outer side of one end of the fixed plate 2, and the length of the slide groove closing plate 11 is greater than the length of the embedded pad 10. This makes it possible for external soil to not enter the buffer arc groove 3 through the gap between the embedded pad 10 and the slide groove closing plate 11 during the sliding process, thereby affecting the normal use of the rebound function. As the sliding continues, the connecting slider 9 will drive the sliding gasket 7 welded on one side of it to slide along the guide rod 6 inside the flat-bottomed slide groove 5 opened at one end of the stable seat 4, and the buffer spring 8 sleeved on the outer side of the guide rod 6 can provide a buffering effect for the sliding gasket 7. Since the motorized equipment is always moving forward with the rotary tiller, the rebounding rotary blade 15 will soon leave the area where the stone is located. This can protect the service life of the rotary blade 15 during the rotary tillage process, thereby reducing the situation where the rotary blade 15 breaks and affects the sowing.

[0024] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotary tiller blade structure, comprising a rotating shaft (1), characterized in that: A plurality of fixed plates (2) are welded to the outside of the rotating shaft (1), a plurality of buffer arc grooves (3) are penetrated through the outer surface of one end of the fixed plate (2), a stabilizing seat (4) is fixed to the outside of one end of the fixed plate (2) by bolts, a flat bottom slide groove (5) is formed at the joint between one end of the stabilizing seat (4) and the fixed plate (2), a guide rod (6) is welded to the inside of the flat bottom slide groove (5), a sliding gasket (7) is sleeved on the outside of the guide rod (6) and the guide rod (6) is sleeved on the inside of the flat bottom slide groove (5), and a A buffer spring (8), a connecting slider (9) is welded to one end of the sliding gasket (7), a mating pad (10) is welded to one end of the fixed disk (2) at the outer edge of the buffer arc groove (3), a slide groove closing plate (11) is welded to one end of the connecting slider (9), a fixed seat (12) is fixed to the outer surface of one end of the slide groove closing plate (11) by bolts, a fixed groove seat (13) is welded to the outer side of one end of the fixed seat (12), and a rotary cutter (15) is fixed to the inner side of the fixed groove seat (13) by bolts.

2. A rotary tiller blade structure according to claim 1, characterized in that: The flat-bottomed slide groove (5) corresponds to one end of the buffer arc-shaped groove (3), and the guide rod (6) welded inside the flat-bottomed slide groove (5) is in an arc shape.

3. The rotary tiller blade structure according to claim 1, characterized in that: The buffer spring (8) is connected to one end of the sliding gasket (7), and the other end of the buffer spring (8) is connected to the inner wall of one end of the flat bottom slide groove (5).

4. A rotary tiller blade structure according to claim 1, characterized in that: A plurality of clamping caps (14) are welded on the outer surface of one end of the fixing groove seat (13).

5. The rotary tiller blade structure according to claim 1, characterized in that: One end surface of the slide groove closing plate (11) is in contact with the outer side surface of the engaging pad (10).

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