Rotary cultivator cutter shaft with length adjusting function

Abstract

The utility model discloses a rotary cultivator cutter shaft with a length adjusting function, and relates to the technical field of agricultural mechanical equipment, the rotary cultivator cutter shaft comprises a cutter shaft, the middle part of the cutter shaft is provided with a placing groove, the middle part of the placing groove is uniformly and fixedly provided with a plurality of outer discs, and the middle parts of the plurality of outer discs are uniformly and fixedly provided with a plurality of connecting rods. According to the rotary cultivator, the blades of the rotary cultivator are connected with the adjusting rod through the fixing holes, the motor is started through external equipment during adjustment, the corresponding gears are driven to rotate, the multiple gears which are connected with the gears and located on one side are driven to rotate through the transmission rod, and the rotating rings and the gear rings are driven to rotate in the process; according to the device disclosed by the invention, the cutter shaft is driven to rotate, so that the gears meshed with the cutter shaft are driven to rotate together, and the corresponding adjusting rods meshed with the gears are driven to stretch out and draw back along the moving grooves and the movable grooves formed in the cutter shaft, so that the effect of adjusting the lengths of the adjusting rods and the blades connected with the adjusting rods is achieved; and therefore, the device has higher practicability.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, and in particular to a rotary tiller blade shaft with length adjustment function. Background Technology

[0002] Rotary tillers are tillage machines that work in conjunction with tractors to perform tilling and harrowing operations. They are widely used because of their strong soil-breaking ability and the ability to flatten the ground after tilling. They can also chop up stubble buried below the surface, making it easier for seeders to work and providing a good seedbed for later sowing. The rotary tiller cutter shaft is an important component of the rotary tiller. The rotary tiller cutter shaft assembly includes the cutter shaft and rotary tiller blades. The cutter shaft includes a shaft body and a cutter holder set on the outer circumference of the shaft body. The rotary tiller blades are mounted on the cutter holder of the cutter shaft.

[0003] In the prior art, Chinese utility model patent CN214708557U discloses a rotary tiller cutter shaft, including a cutter shaft body, a cylindrical rod-shaped structure, and connecting discs at both ends of the cutter shaft body; and blade mounting seats, with at least one blade mounting seat fitted on the outer circumferential surface of the cutter shaft body, all of which are fixed to the cutter shaft body in a clockwise spiral arrangement. The blade mounting seat has a plate-like structure, with a through hole in its middle for connecting and fixing to the cutter shaft body, and one side of the blade mounting seat is curved.

[0004] In existing technology, the rotary tiller blade shaft of the aforementioned device adopts a rational structural design, which not only saves effort when rotary tilling the field, but also has a good digging effect, is not easy to get tangled with weeds, and produces uniform soil clods after rotary tilling. However, certain problems still exist in actual use. The length of the rotary tiller blade shaft of the aforementioned device is fixed, which makes it impossible for the rotary tiller to flexibly adjust the working depth. For example, when tilling shallow surface soil, or when deeper soil needs to be tilled to promote root growth, the fixed blade shaft length leads to a lack of flexibility. This limits the tiller from adjusting the tilling depth according to the needs of different crops or different seasons. Moreover, the fixed length of the blade shaft causes unnecessary power waste. When the soil is soft, if the rotary tiller tills too deeply, it will lead to excessive fuel consumption; while in hard soil, if the blade shaft depth is insufficient, the rotary tiller's power efficiency cannot be utilized, which may affect the tilling progress. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the length of the rotary tiller cutter shaft in the prior art is fixed, which makes it impossible for the rotary tiller to flexibly adjust the working depth and causes unnecessary power waste, resulting in the rotary tiller's power efficiency not being fully utilized and potentially affecting the tillage progress. Therefore, this invention proposes a rotary tiller cutter shaft with a length adjustment function.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a rotary tiller cutter shaft with length adjustment function, comprising a cutter shaft, a placement groove formed in the middle of the cutter shaft, a plurality of outer discs evenly fixedly installed in the middle of the placement groove, a plurality of connecting rods evenly fixedly installed in the middle of the plurality of outer discs, an inner disc fixedly installed at one end of each of the plurality of connecting rods, a rotating groove formed on one side of the middle of the outer discs, a rotating ring rotatably installed in the middle of the rotating groove, a gear ring fixedly installed on one side of the rotating ring, and gears rotatably installed in the middle of the lower ends of the plurality of connecting rods. The inner and outer disks are provided with movable grooves around their center. An adjusting rod is slidably engaged in the center of each movable groove. Multiple tooth blocks are evenly fixedly installed on one side of the adjusting rod. The lower ends of the multiple gears mesh with the tooth rings respectively. The upper ends of the multiple connecting rods mesh with the tooth blocks respectively. A transmission rod is fixedly connected between the middle parts of a group of gears located on one side. A bracket is fixedly installed on the upper end of one of the connecting rods. A motor is fixedly installed in the middle of the bracket. The output end of the motor is fixedly connected to the gear. The transmission rod is located at one end of the gear connected to the motor.

[0007] Preferably, multiple movable grooves are evenly formed around the center of the cutter shaft, and multiple adjusting rods are slidably engaged with the center of the multiple movable grooves.

[0008] Preferably, a sealing top cover is fixedly installed at one end of the cutter shaft by bolts, and the motor is located at the end close to the sealing top cover.

[0009] Preferably, one end of each of the multiple adjusting rods is provided with a plurality of fixing holes.

[0010] Preferably, a connecting shaft is fixedly installed at the middle of one end of the sealing top cover and at the middle of the other end of the cutter shaft.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the blades of the rotary tiller are connected to the adjusting rod through a fixing hole. During use, the operator can adjust the length of the adjusting rod according to the different crops being sown and the softness or hardness of the soil. During adjustment, the motor is started by an external device, which drives the corresponding gear to rotate and drives multiple gears connected to it on one side to rotate through the transmission rod. During the process, the rotating ring and gear ring will rotate, which in turn drives multiple gears meshing with them to rotate together. This causes multiple adjusting rods meshing with the gears to extend and retract along the movable groove opened in the moving groove and the cutter shaft, thereby achieving the effect of adjusting the length of the adjusting rod and the blade connected to it. The length of the cutter shaft and adjusting rod of this device can be adjusted, making the device more practical.

[0013] 2. In this utility model, the sealing top cover can be removed from one end of the cutter shaft. When a fault occurs in the internal structure of the cutter shaft, the operator can remove it to inspect the internal structure, making the inspection and maintenance convenient and quick. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a rotary tiller blade shaft with length adjustment function proposed in this utility model;

[0015] Figure 2 This is a schematic diagram showing the connection relationship between the cutter shaft and the sealing top cover of a rotary tiller with length adjustment function proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of a rotary tiller cutter shaft with length adjustment function proposed in this utility model;

[0017] Figure 4 This is a schematic diagram showing the connection relationship between multiple outer and inner discs of a rotary tiller cutter shaft with length adjustment function proposed in this utility model.

[0018] Figure 5 This is a schematic diagram showing the connection relationship between the rotating ring and the outer disc of a rotary tiller blade shaft with length adjustment function, as proposed in this utility model.

[0019] Figure 6 This is a schematic diagram showing the connection between the adjusting rod and the moving groove of a rotary tiller blade shaft with length adjustment function, as proposed in this utility model.

[0020] Legend: 1. Cutter shaft; 11. Sealing top cover; 12. Connecting shaft; 13. Placement groove; 14. Movable groove; 15. Fixing hole; 2. Outer disc; 21. Inner disc; 22. Rotary groove; 23. Rotary ring; 24. Gear ring; 25. Moving groove; 26. Adjusting rod; 27. Gear block; 28. Connecting rod; 29. ​​Gear; 30. Bracket; 31. Motor; 32. Transmission rod. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1, as Figure 1-6As shown, this utility model provides a rotary tiller cutter shaft with length adjustment function, including a cutter shaft 1. A placement groove 13 is provided in the middle of the cutter shaft 1. Multiple outer discs 2 are evenly fixedly installed in the middle of the placement groove 13. Multiple connecting rods 28 are evenly fixedly installed in the middle of the multiple outer discs 2. An inner disc 21 is fixedly installed at one end of each of the multiple connecting rods 28. A rotating groove 22 is provided on one side of the middle of the outer disc 2. A rotating ring 23 is rotatably installed in the middle of the rotating groove 22. A gear ring 24 is fixedly installed on one side of the rotating ring 23. Gears 29 are rotatably installed in the middle of the lower ends of each of the multiple connecting rods 28. Openings are provided around the middle of the outer discs 2 and inner discs 21. A movable groove 25 is provided, and an adjusting rod 26 is slidably engaged in the middle of the movable groove 25. Multiple tooth blocks 27 are evenly fixedly installed on one side of the adjusting rod 26. The lower ends of multiple gears 29 mesh with tooth rings 24 respectively, and the upper ends of multiple connecting rods 28 mesh with tooth blocks 27 respectively. A transmission rod 32 is fixedly connected between the middle of a group of gears 29 located on one side. A bracket 30 is fixedly installed on the upper end of one of the connecting rods 28. A motor 31 is fixedly installed in the middle of the bracket 30. The output end of the motor 31 is fixedly connected to the gear 29. The transmission rod 32 is located at one end of the gear 29 connected to the motor 31.

[0024] The specific settings and functions of this embodiment are described below. The blades of the rotary tiller are connected to the adjusting rod 26 through the fixing hole 15. During use, the operator can adjust the length of the adjusting rod 26 according to the different crops being sown and the softness or hardness of the soil. During adjustment, the motor 31 is started by an external device, which drives the corresponding gear 29 to rotate and drives multiple gears 29 connected to it on one side to rotate through the transmission rod 32. During the process, the rotating ring 23 and the gear ring 24 will rotate, which in turn drives the multiple gears 29 meshing with them to rotate together. This causes the multiple adjusting rods 26 meshing with the gears 29 to extend and retract along the moving groove 25 and the movable groove 14 opened in the cutter shaft 1, thereby achieving the effect of adjusting the length of the adjusting rod 26 and the blades connected to it. The length of the cutter shaft 1 and the adjusting rod 26 of this device can be adjusted, making the device more practical.

[0025] Example 2, as Figure 1 , Figure 2 and Figure 3 As shown, multiple movable grooves 14 are evenly distributed around the center of the cutter shaft 1. Multiple adjusting rods 26 are slidably engaged with the center of the multiple movable grooves 14. A sealing top cover 11 is fixedly installed at one end of the cutter shaft 1 by bolts. The motor 31 is located at one end close to the sealing top cover 11. Multiple fixing holes 15 are evenly distributed at one end of the multiple adjusting rods 26. A connecting shaft 12 is fixedly installed at the center of one end of the sealing top cover 11 and the center of the other end of the cutter shaft 1.

[0026] The overall effect of this embodiment is that the blades of the rotary tiller are connected to the adjusting rod 26 through the fixing hole 15, and the entire blade shaft 1 is connected to the rotary tiller through the connecting shafts 12 at both ends. During tillage, the operator can adjust the length of the adjusting rod 26 according to the different crops being sown and the softness or hardness of the soil. During adjustment, the motor 31 is started by an external device, which drives the corresponding gear 29 to rotate and drives multiple gears 29 connected to it on one side to rotate through the transmission rod 32. During the process, the rotating ring 23 and the gear ring 24 will rotate, which in turn drives the multiple gears 29 meshing with them to rotate together. This causes the multiple adjusting rods 26 meshing with the gears 29 to extend and retract along the moving groove 25 and the movable groove 14 opened in the blade shaft 1, thereby achieving the effect of adjusting the length of the adjusting rod 26 and the blades connected to it. The length of the blade shaft 1 and the adjusting rod 26 of this device can be adjusted, making the device more practical. The sealing top cover 11 can be removed from one end of the blade shaft 1. When the internal structure of the blade shaft 1 malfunctions, the operator can remove it to inspect the internal structure, making the inspection and maintenance convenient and quick.

[0027] The operating method and working principle of this device are as follows: The blades of the rotary tiller are connected to the adjusting rod 26 through the fixing hole 15. The entire blade shaft 1 is connected to the rotary tiller through the connecting shafts 12 at both ends. During cultivation, the operator can adjust the length of the adjusting rod 26 according to the different crops being sown and the softness or hardness of the soil. During adjustment, the motor 31 is started by an external device, which drives the corresponding gear 29 to rotate. Through the transmission rod 32, it drives multiple gears 29 connected to it on one side to rotate. During the process, the rotating ring 23 and the gear ring 24 will rotate, which in turn drives the multiple gears 29 meshing with them to rotate together. This causes the multiple adjusting rods 26 meshing with the gears 29 to extend and retract along the moving groove 25 and the movable groove 14 opened in the blade shaft 1, thereby achieving the effect of adjusting the length of the adjusting rod 26 and the blades connected to it. The length of the blade shaft 1 and the adjusting rod 26 of this device can be adjusted, making the device more practical. It can save fuel consumption while allowing the rotary tiller to fully utilize its power.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A rotary cultivator toolbar with length adjustment function, comprising a toolbar (1), characterized in that: The middle part of the cutter shaft (1) is provided with a placing groove (13), a plurality of outer discs (2) are uniformly and fixedly installed in the middle part of the placing groove (13), a plurality of connecting rods (28) are uniformly and fixedly installed in the middle part of the plurality of outer discs (2), an inner disc (21) is fixedly installed at one end of the plurality of connecting rods (28), a rotating groove (22) is formed in one side of the middle part of the outer disc (2), a rotating ring (23) is rotatably installed in the middle part of the rotating groove (22), a gear ring (24) is fixedly installed on one side of the rotating ring (23), a gear (29) is rotatably installed at the middle part of the lower end of the plurality of connecting rods (28), a moving groove (25) is formed around the middle part of the outer disc (2) and the inner disc (21), an adjusting rod (26) is slidably connected in the middle part of the moving groove (25), a plurality of tooth blocks (27) are uniformly and fixedly installed on one side of the adjusting rod (26), the lower ends of the plurality of gears (29) are engaged with the gear ring (24), the upper ends of the plurality of connecting rods (28) are engaged with the tooth blocks (27), a transmission rod (32) is fixedly connected between the middle parts of a group of gears (29) located on one side, the upper end of one of the connecting rods (28) is fixedly installed with a bracket (30), the middle part of the bracket (30) is fixedly installed with a motor (31), the output end of the motor (31) is fixedly connected with the gear (29), and the transmission rod (32) is located at one end of the gear (29) connected with the motor (31).

2. The rotary cultivator shaft with length adjustment function according to claim 1, characterized in that: A plurality of movable grooves (14) are uniformly formed around the middle part of the cutter shaft (1), and a plurality of adjusting rods (26) are slidably connected with the middle parts of the plurality of movable grooves (14).

3. The rotary cultivator blade shaft with length adjustment function according to claim 1, characterized in that: One end of the cutter shaft (1) is fixedly installed with a sealing top cover (11) through bolts, and the motor (31) is located at one end close to the sealing top cover (11).

4. The rotary cultivator blade shaft with length adjustment function according to claim 1, characterized in that: A plurality of fixing holes (15) are uniformly formed at one end of the plurality of adjusting rods (26).

5. The rotary cultivator blade shaft with length adjustment function according to claim 3, characterized in that: The middle part of one end of the sealing top cover (11) and the middle part of the other end of the cutter shaft (1) are fixedly installed with a connecting shaft (12).

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