Rotary tillage cutter shaft with motor

Abstract

The utility model relates to a rotary tillage cutter shaft, in particular to a rotary tillage cutter shaft with a motor, which comprises a rotary tillage cutter frame, a support frame, a rotary tillage cutter shaft, a damping mechanism and a quick release mechanism, a servo motor is arranged in the rotary tillage cutter shaft, then the rotary tillage cutter shaft is placed on the supporting frame and then connected to the rotary tillage cutter frame, rotation of the cutter shaft can be completed by supplying power to the motor, a damping mechanism is arranged between the rotary tillage cutter frame and the supporting frame and used for damping, and meanwhile the supporting frame provided with the cutter shaft is further provided with a quick release mechanism so that the cutter shaft can be maintained or replaced conveniently. The built-in motor is used for automatically providing rotating power, the rotating speed of the cutter shaft can be automatically changed by inputting a power source to the motor, meanwhile, the quick release design is arranged, the convenience degree of cutter shaft maintenance is increased, the practicability of the equipment is improved, and popularization and use of the equipment are facilitated.

Description

Technical Field

[0001] The utility model relates to a rotary tiller shaft, in particular to a rotary tiller shaft with a motor arranged inside. Background Art

[0002] The rotary tiller is an important agricultural machine and plays an important role in modern agricultural cultivation. The key functional component of the rotary tiller is the rotary tiller shaft with a rotary tiller blade. When the rotary tiller shaft rotates during operation, the impeller also rotates with the shaft. Under the action of centrifugal force, the impeller will also rotate by itself. Then, the rotating impeller will cut and remove the weeds wrapped around the shaft. The power transmission of the rotary tiller shaft directly affects the rotary tillage effect. The existing rotary tiller shaft usually adopts gear chain transmission. The transmission components are complex and easily cause power loss. At the same time, maintenance usually requires disassembly of the complete gear assembly, which cannot be repaired quickly, which may have an adverse impact on production. Utility Model Content

[0003] The utility model aims to provide a rotary tiller shaft which has a built-in motor and is easy to disassemble and use.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The technical solution of the utility model is: it includes a rotary tiller frame, a support frame is provided in the cavity below the rotary tiller frame, the support frame includes a supporting bent arm, a connecting hole is provided at the end of the supporting bent arm, the connecting hole is rotatably connected to the bottom of the rotary tiller frame, a supporting transverse groove is provided at the front end of the supporting bent arm, a rotary tiller shaft is placed in the supporting transverse groove, the rotary tiller shaft includes an extension column, a buckling column is connected to the inner side of the extension column, and both ends are buckled by the buckling column and fit to the inner wall of the carrier shaft, the carrier shaft can rotate freely, and a plurality of rotary tiller blades are fixedly connected to the outer surface of the carrier shaft.

[0006] As a preferred embodiment of the utility model, a shock absorbing mechanism is also provided on the upper part of the supporting arm, and the L-shaped bend at the top end of the supporting arm is rotatably connected with a quick release mechanism, and the quick release mechanism includes a rotating connecting block and a support column passing through the bottom plane of the rotating connecting block.

[0007] As a preferred embodiment of the utility model, a semicircular limiting ring with the same diameter is provided on the inner side of the supporting curved arm at the end of the supporting transverse groove.

[0008] As a preferred embodiment of the present invention, the extension column is provided with a limiting groove, which can be fitted with a limiting ring, and the extension column and the buckle column are simultaneously provided with a power connection through hole that passes through the center of the circle.

[0009] As a preferred embodiment of the utility model, a connecting gear disc is provided in the internal cavity of the carrier shaft, and the connecting gear disc is connected through a gear rod on one side of the fixed gear disc, and the center of the other side of the fixed gear disc is fixedly connected to the servo motor rotating rod, the servo motor is fixedly connected to the motor bracket, and the motor bracket is fixedly connected to the buckling side surface of the buckling column.

[0010] As a preferred embodiment of the utility model, the shock absorbing mechanism includes a fixed column fixed to the side of the rotary tiller frame, and a shock absorbing arm rotatably connected to the fixed column, the end of the shock absorbing arm is rotatably connected to the top of the connecting plate, and the end of the connecting plate is fixedly connected to the upper surface of the supporting bent arm.

[0011] As a preferred embodiment of the utility model, a curved block is provided at the end of the support column, and the curved edge of the curved block can fit into the extension column placed in the supporting transverse groove connected to the buckled column, and a spring penetrated by the support column is provided between the curved block and the rotating connection block.

[0012] As a preferred embodiment of the present invention, a sliding arc is provided on the side of the curved block.

[0013] As a preferred embodiment of the utility model, the rotary tillage blades are distributed in a uniform circular array on the outer surface of the carrier shaft along the cross section of the carrier shaft, and are distributed in an equidistant array parallel to the central axis of the carrier shaft.

[0014] The beneficial effects of the utility model are:

[0015] The utility model is a rotary tiller shaft with a built-in motor and easy to disassemble and use. After the rotary tiller frame fixes the support curved arm, the rotary tiller shaft is fixed to the front end of the support curved arm. At the same time, the rotary tiller shaft is provided with a buckle column equipped with a servo motor, and the fixed toothed disc at the top of the servo motor is inserted into the connecting toothed disc provided inside the carrier shaft carrying the rotary tiller blade to achieve fixation. Since the buckle column is fixed to the support curved arm, after the servo motor is started, the motor rotates to drive the carrier shaft and the rotary tiller blade on the surface to rotate to achieve rotary tillage. The motor is directly driven, which directly simplifies the power transmission process and greatly avoids the loss of power output. At the same time, when the rotary tiller shaft needs to be repaired, the quick-release mechanism is provided. After the rotary connecting block is rotated counterclockwise to make the curved block peel off the extension column provided by the buckle column to cancel the fixation of the rotary tiller shaft, the rotary tiller shaft can be separated after sliding out of the support transverse groove, which is convenient for subsequent repair and maintenance, and simplifies the work intensity of repair and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a cross-sectional three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3This is a schematic diagram of the three-dimensional structure of the support frame of the utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the three-dimensional structure of the rotary tiller shaft of the utility model;

[0020] Figure 5 For this utility model Figure 4 The second three-dimensional cross-sectional structure diagram of the rotary tiller shaft;

[0021] Figure 6 This is the third three-dimensional structural schematic diagram of the rotary tiller shaft of the utility model;

[0022] Figure 7 It is a three-dimensional structural schematic diagram of the quick-release mechanism of the utility model.

[0023] Figure numbers: 1. Rotary tillage blade frame; 2. Support frame; 21. Support bent arm; 22. Connecting hole; 23. Support transverse groove; 24. Limiting ring; 3. Rotary tillage blade shaft; 31. Loading shaft; 32. Rotary tillage blade; 33. Snap-on column; 34. Limiting groove; 35. Power connection hole; 36. Motor bracket; 37. Servo motor; 38. Fixed gear disc; 39. Connecting gear disc; 4. Shock-absorbing mechanism; 41. Fixed column; 42. Shock-absorbing arm; 43. Connecting plate; 5. Quick release mechanism; 51. Rotary connecting block; 52. Support column; 53. Bend block; 54. Spring. DETAILED DESCRIPTION

[0024] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] Combine the following Figure 1-7The specific implementation mode of the utility model is described, a rotary tiller blade shaft with a motor comprises a rotary tiller blade frame 1, a support frame 2 is arranged in the cavity below the rotary tiller blade frame 1, the support frame 2 comprises a support arm 21, a connecting hole 22 is arranged at the end of the support arm 21, the connecting hole 22 is rotatably connected to the bottom of the rotary tiller blade frame 1, a support transverse groove 23 is arranged at the front end of the support arm 21, a rotary tiller blade shaft 3 is placed in the supporting transverse groove 23, the rotary tiller blade shaft 3 comprises an extension column 310, a buckle column 33 is connected to the inner side of the extension column 310, the extension column 310 is provided with a limiting groove 34, which can be fitted with the limiting ring 24, the extension column 310 and the buckle column 33 are simultaneously provided with a power connection through hole 35 passing through the center of the circle, and the two ends are buckled by the buckle column 33 and fit to the carrier shaft 3 1 inner wall, the carrying shaft 31 can rotate freely, and a plurality of rotary tillage blades 32 are fixedly connected to the outer surface of the carrying shaft 31. A connecting toothed disc 39 is provided in the inner cavity of the carrying shaft 31. The connecting toothed disc 39 is penetrated and connected by a toothed rod on one side of the fixed toothed disc 38. The center of the other side of the fixed toothed disc 38 is fixedly connected to a rotating rod of a servo motor 37. The servo motor 37 is fixedly connected to a motor bracket 36. The motor bracket 36 is fixedly connected to the buckling side surface of the buckling column 33. After the operator connects the power supply to the servo motor 37 fixedly connected to the buckling column 33 through the power supply connection through hole 35, the power is input, and the servo motor 37 drives the carrying shaft 31 and the rotary tillage blades 32 on the surface to rotate. At the same time, the rotation speed can be changed according to the input current to match the required rotary tillage scene.

[0026] Advantageously, a shock absorbing mechanism 4 is provided on the upper part of the support arm 21, and a quick release mechanism 5 is rotatably connected to the L-shaped bend at the top of the support arm 21, and the quick release mechanism 5 includes a rotatable connection block 51 and a support column 52 that passes through the bottom plane of the rotatable connection block 51;

[0027] In practice, after the rotary tillage blade 32 contacts the rotary tillage ground, the shock absorbing mechanism 4 is used to absorb shock to avoid damage to the motor and other objects. If maintenance is required, the rotary tillage blade shaft 3 is disassembled through the quick release mechanism 5 for easy maintenance.

[0028] Advantageously, a semicircular limiting ring 24 of the same diameter is provided at the end of the supporting transverse groove 23 on the inner side of the supporting curved arm 21, and the limiting ring 24 can be placed in a limiting groove 34 provided on the extension column 310 to prevent the rotary tiller shaft 3 from shifting left and right and affecting the use effect.

[0029] Advantageously, a connecting toothed disc 39 is provided in the internal cavity of the carrier shaft 31, and the connecting toothed disc 39 is penetrated and connected by a toothed rod on one side of the fixed toothed disc 38. The other side of the fixed toothed disc 38 is fixedly connected to the rotating rod of the servo motor 37 at the center point. The servo motor 37 is fixedly connected to the motor bracket 36, and the motor bracket 36 is fixedly connected to the buckling side surface of the buckling column 33. By connecting the fixed toothed disc 38 on the servo motor 37 to the connecting toothed disc 39 inside the carrier shaft 31, the rotary tiller shaft 3 can be divided into a power part and a rotary tiller part. After the rotary tiller shaft 3 is removed by the quick-release mechanism 5, the motor can be separated from the inner cavity of the carrier shaft 31 by detaching the buckling column 33 from the inner shaft of the carrier shaft 31, thereby assisting in equipment maintenance or repair.

[0030] Advantageously, the shock absorbing mechanism 4 includes a fixed column 41 fixed to the side of the rotary tiller frame 1, and a shock absorbing arm 42 rotatably connected to the fixed column 41, the end of the shock absorbing arm 42 is rotatably connected to the top of the connecting plate 43, and the end of the connecting plate 43 is fixedly connected to the upper surface of the supporting bent arm 21. After the rotary tiller blade 32 contacts the ground, the shock absorbing arm 42 is used to absorb shock to the carrier shaft 31 to avoid damage to the equipment.

[0031] Advantageously, a bend block 53 is provided at the end of the support column 52, and the bend of the bend block 53 can fit the extension column 310 placed in the support transverse groove 23 connected by the buckling column 33. A spring 54 is provided between the bend block 53 and the rotating connection block 51 and is penetrated by the support column 52, and a sliding arc 55 is provided on the side of the bend block 53; when it is necessary to disassemble the rotary tiller shaft 3, the rotating connection block 51 is rotated counterclockwise, and the rotating connection block 51 drives the support column 52 to peel off the bend of the bend block 53 from the outer surface of the extension column 310 fixed in the support transverse groove 23. When the rotary tiller shaft 3 is installed, the rotating connection block 51 is rotated clockwise so that the rotary tiller blade 32 fits the extension column 310 along the sliding arc 55 until the bend of the bend block 53 completely fits the surface of the extension column 310, and the spring 54 squeezes the support column 52 to further fix the extension column 310 to prevent it from falling off.

[0032] Beneficially, the rotary tillage blades 32 are distributed in a uniform circular array on the outer surface of the carrier shaft 31 extending along the cross-section of the carrier shaft 31, and are distributed in an equidistant array parallel to the center axis of the carrier shaft 31. Because the motor is enabled to drive, the uniformly distributed rotary tillage blades 32 can better average the rotational torque and avoid damage to the motor due to mass distribution deviation.

[0033] The working principle of the utility model is as follows: after the extension column 310 provided on the rotary tiller shaft 3 is placed in the supporting transverse groove 23 and fixed by the quick release mechanism 5, the operator connects the power supply to the servo motor 37 fixedly connected to the buckle column 33 through the power connection through hole 35, the servo motor 37 and the buckle column 33 are locked, and the power is input. The load shaft 31 is rotated by the buckle connection of the buckle columns 33 at both ends, and the rotary tiller blade 32 on the surface is driven to rotate. At the same time, the rotation speed can be changed according to the input current to match the required rotary tillage scene;

[0034] When the rotary tiller shaft 3 needs to be disassembled, the rotating connecting block 51 is rotated counterclockwise, and the rotating connecting block 51 drives the supporting column 52 to peel off the bend of the bend block 53 and separate it from the outer surface of the extension column 310 fixed by the supporting transverse groove 23. When the rotary tiller shaft 3 is installed, the rotating connecting block 51 is rotated clockwise to make the rotary tiller blade 32 fit the extension column 310 along the sliding arc 55 until the bend of the bend block 53 completely fits the surface of the extension column 310. The spring 54 squeezes the supporting column 52 to further fix the extension column 310 to prevent it from falling off. The shock absorbing mechanism prevents the rotary tiller blade 32 from damaging the equipment after contacting the ground.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary tiller shaft with a motor, characterized in that: The invention comprises a rotary tiller frame (1), wherein a support frame (2) is arranged in a cavity below the rotary tiller frame (1), wherein the support frame (2) comprises a support curved arm (21), wherein a connection hole (22) is arranged at the end of the support curved arm (21), wherein the connection hole (22) is rotatably connected to the bottom of the rotary tiller frame (1), wherein a support transverse groove (23) is arranged at the front end of the support curved arm (21), wherein a rotary tiller shaft (3) is arranged in the support transverse groove (23), wherein the rotary tiller shaft (3) comprises an extension column (310), wherein a buckle column (33) is connected to the inner side of the extension column (310), and wherein both ends are buckled by the buckle column (33) and are attached to the inner wall of a carrier shaft (31), wherein the carrier shaft (31) can rotate freely, and wherein a plurality of rotary tiller blades (32) are fixedly connected to the outer surface of the carrier shaft (31).

2. The rotary tiller shaft with a motor according to claim 1, characterized in that: A shock absorbing mechanism (4) is also provided on the upper part of the supporting curved arm (21); the L-shaped curved opening at the top end of the supporting curved arm (21) is rotatably connected to a quick release mechanism (5); the quick release mechanism (5) comprises a rotatable connection block (51) and a support column (52) penetrating the bottom plane of the rotatable connection block (51).

3. The rotary tiller shaft with a motor according to claim 1, characterized in that: A semicircular limiting ring (24) with the same diameter is provided on the inner side of the supporting curved arm (21) at the end of the supporting transverse groove (23).

4. The rotary tiller shaft with a motor according to claim 1, characterized in that: The extension column (310) is provided with a limiting groove (34) which can fit with the limiting ring (24); the extension column (310) and the buckle column (33) are both provided with a power connection through hole (35) penetrating the center of the circle.

5. The rotary tiller shaft with a motor according to claim 1, characterized in that: The internal cavity of the carrier shaft (31) is provided with a connecting toothed disc (39), and the connecting toothed disc (39) is connected through a toothed rod on one side of the fixed toothed disc (38). The center of the other side of the fixed toothed disc (38) is fixedly connected to a rotating rod of a servo motor (37). The servo motor (37) is fixedly connected to a motor bracket (36), and the motor bracket (36) is fixedly connected to a buckling side surface of a buckling column (33).

6. The rotary tiller shaft with a motor according to claim 2, characterized in that: The shock absorbing mechanism (4) comprises a fixing column (41) fixed to the side of the rotary tiller blade frame (1), and a shock absorbing arm (42) rotatably connected to the fixing column (41), the end of the shock absorbing arm (42) being rotatably connected to the top of a connecting plate (43), and the end of the connecting plate (43) being fixedly connected to the upper surface of the supporting curved arm (21).

7. The rotary tiller shaft with a motor according to claim 2, characterized in that: A curved clamping block (53) is provided at the end of the support column (52), and the curved clamping block (53) can be fitted with an extension column (310) connected to the buckle column (33) and placed in the support transverse groove (23). A spring (54) penetrating through the support column (52) is provided between the curved clamping block (53) and the rotating connection block (51).

8. The rotary tiller shaft with a motor according to claim 7, characterized in that: A sliding arc (55) is provided on the side of the curved clamping block (53).

9. The rotary tiller shaft (3) with a motor according to claim 1, characterized in that: The rotary tillage blades (32) are distributed in a uniform circular array on the outer surface of the carrier shaft (31) along the cross section of the carrier shaft (31), and are distributed in an array parallel to and equidistant from the center axis of the carrier shaft (31).

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