Protection mechanism of rape rotary cultivator

Abstract

The utility model discloses a protection mechanism of a rape rotary cultivator, and relates to the technical field of rotary cultivators. The leveling device comprises a shell, wherein an overload protection mechanism and two leveling plate resetting mechanisms are arranged on the shell; a first rotating shaft is rotatably connected to the inner walls of the left side and the right side of the shell, a rotary blade set is fixedly connected to the outer wall of the first rotating shaft, a leveling plate is hinged to the rear side of the shell, the overload protection mechanism comprises a first protection assembly and a second protection assembly, and the first protection assembly comprises a circular groove formed in the right side of the first rotating shaft. And an adaptive block I is fixedly connected to the inner wall of the circular groove. Through the arrangement of the overload protection mechanism, the problems that in the using process of a protection mechanism of an existing rape rotary cultivator, when the protection mechanism encounters obstacles such as hard stones and tree roots, huge resistance can directly act on a transmission system, so that the rotary cultivator is overloaded, and then irreversible damage is caused to the rotary cultivator are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary tillers, in particular to a protection mechanism of a rapeseed rotary tiller. Background Art

[0002] Rapeseed is one of the important oil crops in the world. Rotary tillers play a key role in the rapeseed planting process. Rotary tillers can break up the soil, turn over the soil, mix fertilizer, etc., providing good soil conditions for the sowing and growth of rapeseed seeds. With the advancement of agricultural modernization, the requirements for rapeseed planting efficiency and quality are constantly increasing, and the frequency of use of rotary tillers has also increased significantly. In the rotary tillage module of the rotary tiller, its protection mechanism is indispensable.

[0003] However, when the protective mechanism of the existing rapeseed rotary tiller encounters obstacles such as hard stones, tree roots, etc. during use, huge resistance will directly act on the transmission system, causing the rotary tiller to overload, thereby causing irreversible damage to the rotary tiller. Utility Model Content

[0004] The purpose of the utility model is to provide a protection mechanism for a rapeseed rotary tiller. By setting an overload protection mechanism, the problem that when the protection mechanism of the existing rapeseed rotary tiller encounters obstacles such as hard stones, tree roots, etc. during use, huge resistance will directly act on the transmission system, thereby causing the rotary tiller to overload and causing irreversible damage to the rotary tiller is solved.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a protective mechanism for a rapeseed rotary tiller, comprising a shell, on which an overload protection mechanism and two screed plate resetting mechanisms are arranged;

[0007] A rotating shaft 1 is rotatably connected to the left and right inner walls of the shell, a rotary tiller blade group is fixedly connected to the outer wall of the rotating shaft 1, a screed plate is hingedly provided on the rear side of the shell, the overload protection mechanism includes a protection component 1 and a protection component 2, the protection component 1 includes a circular groove opened on the right side of the rotating shaft 1, an adapter block 1 is fixedly connected to the inner wall of the circular groove, the left side of the shell is rotatably connected to the rotating shaft 2, and the left side of the rotating shaft 2 rotates and extends into the shell.

[0008] Furthermore, a motor is fixedly connected to the right side of the shell, the output shaft of the motor is fixedly connected to the second rotating shaft through a coupling, an adapter block 2 is slidably connected to the inner wall of the circular groove, and the adapter block 1 is adapted to the adapter block 2.

[0009] Furthermore, the second protection component includes a telescopic rod fixedly connected to the left side of the second rotating shaft, the left side of the telescopic rod is fixedly connected to the second adapter block, a strong spring 1 is sleeved on the outer wall of the telescopic rod, the left side of the strong spring 1 is fixedly connected to the second adapter block, and the right side of the strong spring 1 is fixedly connected to the second rotating shaft.

[0010] Furthermore, the leveling plate resetting mechanism includes a sliding component and an elastic component, the sliding component includes a connecting block 1 fixedly connected to the rear side of the leveling plate, and a connecting block 2 is hingedly provided on the rear side of the connecting block 1.

[0011] Furthermore, a sliding rod is fixedly connected to the top of the second connecting block, and a connecting block three is fixedly connected to the rear side of the shell.

[0012] Furthermore, the elastic component includes a connecting block four hingedly arranged on the rear side of the connecting block three, the top of the sliding rod slides through the connecting block four and extends to the outside, and a limiting plate is fixedly connected to the top side extension of the sliding rod.

[0013] Furthermore, a strong spring 2 is sleeved on the outer wall of the slide rod, the top of the strong spring 2 is fixedly connected to the connecting block 4, and the bottom of the strong spring 2 is fixedly connected to the connecting block 2.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting up an overload protection mechanism, when the rotary tillage blade group encounters obstacles such as hard stones or tree roots, the shaft 1 will stop rotating, and because the shaft 2 is still rotating, the adapter block 1 and the adapter block 2 will separate under the action of the telescopic rod and the strong spring 1, so that the shaft 2 will idle and avoid damage to the motor caused by overload. When the rotary tillage blade group leaves the obstacle, the adapter block 2 will match with the adapter block 1 again under the action of the strong spring 1, and drive the rotary tillage blade group on the shaft 1 to rotate again, and continue to till the soil, so that the influence of the sudden increase in resistance on the motor can be effectively reduced, so that the service life of the motor can be extended, and it can be ensured that after encountering an obstacle, the system can adjust itself, so that the rotary tiller can quickly return to normal working state after leaving the obstacle, ensuring the continuity and stability of the rotary tillage operation;

[0016] 2. By setting up a leveling plate reset mechanism, during rotary tillage, the soil after rotary tillage is relatively messy, and under the action of the leveling plate, the messy soil will be leveled. When the leveling plate encounters a harder obstacle, the rotary tiller continues to move forward and gives the leveling plate a forward pulling force, thereby forcing the bottom of the leveling plate to tilt. This force will act on the sliding bar through the leveling plate, connecting block 1 and connecting block 2. The sliding bar moves upward under the action of connecting block 3 and connecting block 4, and forces the strong spring 2 to be compressed. The strong spring 2 will generate elastic force under the action of this compression force. When the leveling plate is free from the obstacle, the elastic force of the strong spring 2 will act on the leveling plate to reset it, so that the soil flatness can be effectively improved. Under the action of the strong spring 2, the leveling plate can continue to perform its leveling function, thereby ensuring that most of the land can be effectively leveled, providing a good implantation environment for rapeseed seeds.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a partial cross-sectional structural schematic diagram of the overload protection mechanism of the utility model;

[0021] Figure 3 It is a rear view structural schematic diagram of the utility model;

[0022] Figure 4 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0023] Figure 5 For this utility model Figure 3 A schematic diagram of the enlarged structure of B;

[0024] Figure 6 It is a partial structural schematic diagram of the overload protection mechanism of the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Shell; 101. Rotating shaft 1; 102. Rotary blade group; 103. Screed plate; 2. Overload protection mechanism; 21. Protection component 1; 211. Circular groove; 212. Adapter block 1; 213. Rotating shaft 2; 214. Motor; 215. Adapter block 2; 22. Protection component 2; 221. Telescopic rod; 222. Strong spring 1; 3. Screed plate reset mechanism; 31. Sliding assembly; 311. Connecting block 1; 312. Connecting block 2; 313. Sliding rod; 314. Connecting block 3; 32. Elastic assembly; 321. Connecting block 4; 322. Limiting plate; 323. Strong spring 2. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5 As shown, the utility model is a protection mechanism of a rapeseed rotary tiller, comprising a shell 1, on which an overload protection mechanism 2 and two screed plate reset mechanisms 3 are arranged, a rotating shaft 101 is rotatably connected to the left and right inner walls of the shell 1, a rotary tiller blade group 102 is fixedly connected to the outer wall of the rotating shaft 101, a screed plate 103 is hingedly arranged on the rear side of the shell 1, the overload protection mechanism 2 comprises a protection component 1 21 and a protection component 2 22, the protection component 1 21 comprises a circular groove 211 provided on the right side of the rotating shaft 101, an adapter block 1 212 is fixedly connected to the inner wall of the circular groove 211, a rotating shaft 213 is rotatably connected to the left side of the shell 1, the left side of the rotating shaft 213 rotates and extends into the shell 1, a motor 214 is fixedly connected to the right side of the shell 1, the output shaft of the motor 214 is fixedly connected to the rotating shaft 213 through a coupling, and the circular groove 2 An adapter block 215 is slidably connected to the inner wall of 11, and the adapter block 1 212 is adapted to the adapter block 215. The protection component 22 includes a telescopic rod 221 fixedly connected to the left side of the rotating shaft 213, and the left side of the telescopic rod 221 is fixedly connected to the adapter block 215. A strong spring 1 222 is sleeved on the outer wall of the telescopic rod 221, and the left side of the strong spring 1 222 is fixedly connected to the adapter block 215, and the right side of the strong spring 1 222 is fixedly connected to the rotating shaft 213. By setting the overload protection mechanism 2, the influence of the sudden increase in resistance on the motor 214 can be effectively reduced, thereby extending the service life of the motor 214, ensuring that after encountering an obstacle, the system can self-adjust, so that the rotary tiller can quickly resume normal working state after leaving the obstacle, thereby ensuring the continuity and stability of the rotary tillage operation.

[0029] The screed plate resetting mechanism 3 includes a sliding component 31 and an elastic component 32. The sliding component 31 includes a connecting block 1 311 fixedly connected to the rear side of the screed plate 103. The rear side of the connecting block 1 311 is hingedly provided with a connecting block 2 312. The top of the connecting block 2 312 is fixedly connected with a sliding rod 313. The rear side of the shell 1 is fixedly connected with a connecting block 3 314. The elastic component 32 includes a connecting block 4 321 hingedly provided at the rear side of the connecting block 3 314. The top of the sliding rod 313 slides through the connecting block 4 321 and extends to the outside. The top of the sliding rod 313 A limiting plate 322 is fixedly connected to the side extension portion, and a strong spring 2 323 is sleeved on the outer wall of the slide rod 313. The top of the strong spring 2 323 is fixedly connected to the connecting block 4 321, and the bottom of the strong spring 2 323 is fixedly connected to the connecting block 2 312. By setting the leveling plate resetting mechanism 3, the soil flatness can be effectively improved, and under the action of the strong spring 2 323, the leveling plate 103 can continue to perform the leveling function, thereby ensuring that most of the land can be effectively leveled, providing a good implantation environment for rapeseed seeds.

[0030] A specific application of this embodiment is: when in use, the motor 214 is started, and the motor 214 drives the rotary tillage blade group 102 on the rotating shaft 101 to rotate through the rotating shaft 213 to perform rotary tillage. When encountering obstacles such as hard stones or tree roots, the rotating shaft 101 will stop rotating, and because the rotating shaft 213 continues to rotate, the adapter block 1 212 and the adapter block 2 215 will separate under the action of the telescopic rod 221 and the strong spring 1 222, so that the rotating shaft 213 idles, thereby avoiding damage to the motor 214 caused by overload. When the rotary tillage blade group 102 leaves the obstacle, the adapter block 215 will be matched with the adapter block 1 212 again under the action of the strong spring 1 222, and drive the rotary tillage blade group 102 on the rotating shaft 101 to rotate again, and continue to perform rotary tillage, so that the influence of the sudden increase in resistance on the motor 214 can be effectively reduced, thereby extending the service life of the motor 214, and ensuring that after encountering an obstacle, the system can adjust itself so that the rotary tiller can quickly return to normal working state after leaving the obstacle, ensuring The continuity and stability of the rotary tillage operation are ensured. During rotary tillage, the soil after rotary tillage is relatively messy, and the messy soil will be leveled under the action of the screed plate 103. When the screed plate 103 encounters a harder obstacle, the rotary tiller continues to move forward and gives the screed plate 103 a forward pulling force, thereby forcing the bottom of the screed plate 103 to tilt. This force will act on the slide bar 313 through the screed plate 103, the connecting block 1 311 and the connecting block 2 312. The slide bar 313 is connected to the connecting block 3 314 and the connecting block 4 Under the action of strong spring 321, it moves upward and forces the strong spring 323 to be compressed. The strong spring 323 will generate elastic force under the action of this compression force. When the leveling plate 103 breaks away from the obstacle, the elastic force of the strong spring 323 will act on the leveling plate 103 to reset it, so that the soil flatness can be effectively improved. Under the action of the strong spring 323, the leveling plate 103 can continue to play the leveling function, thereby ensuring that most of the land can be effectively leveled, providing a good implantation environment for rapeseed seeds.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A protective mechanism for a rapeseed rotary tiller, comprising a housing (1), characterized in that: The housing (1) is provided with an overload protection mechanism (2) and two leveling plate reset mechanisms (3); A rotating shaft 1 (101) is rotatably connected to the inner walls on the left and right sides of the shell (1), a rotary tiller blade group (102) is fixedly connected to the outer wall of the rotating shaft 1 (101), a screed plate (103) is hingedly provided on the rear side of the shell (1), the overload protection mechanism (2) comprises a protection component 1 (21) and a protection component 2 (22), the protection component 1 (21) comprises a circular groove (211) provided on the right side of the rotating shaft 1 (101), an adapter block 1 (212) is fixedly connected to the inner wall of the circular groove (211), the left side of the shell (1) is rotatably connected to the rotating shaft 2 (213), and the left side of the rotating shaft 2 (213) is rotatably extended into the shell (1).

2. The protective mechanism of a rapeseed rotary tiller according to claim 1, characterized in that: A motor (214) is fixedly connected to the right side of the housing (1); an output shaft of the motor (214) is fixedly connected to the second rotating shaft (213) via a coupling; an adapter block (215) is slidably connected to the inner wall of the circular groove (211); and the adapter block (212) is adapted to the adapter block (215).

3. The protective mechanism of a rapeseed rotary tiller according to claim 2, characterized in that: The second protection component (22) comprises a telescopic rod (221) fixedly connected to the left side of the second rotating shaft (213), the left side of the telescopic rod (221) being fixedly connected to the second adapter block (215), a strong spring (222) being sleeved on the outer wall of the telescopic rod (221), the left side of the strong spring (222) being fixedly connected to the second adapter block (215), and the right side of the strong spring (222) being fixedly connected to the second rotating shaft (213).

4. The protective mechanism of a rapeseed rotary tiller according to claim 3, characterized in that: The screed plate resetting mechanism (3) comprises a sliding component (31) and an elastic component (32), wherein the sliding component (31) comprises a connecting block 1 (311) fixedly connected to the rear side of the screed plate (103), and a connecting block 2 (312) is hingedly provided on the rear side of the connecting block 1 (311).

5. The protective mechanism of a rapeseed rotary tiller according to claim 4, characterized in that: The top of the second connecting block (312) is fixedly connected to a sliding rod (313), and the rear side of the shell (1) is fixedly connected to a third connecting block (314).

6. The protective mechanism of a rapeseed rotary tiller according to claim 5, characterized in that: The elastic component (32) comprises a connection block four (321) hingedly arranged on the rear side of the connection block three (314); the top of the slide bar (313) slides through the connection block four (321) and extends to the outside; and a limit plate (322) is fixedly connected to the top extension of the slide bar (313).

7. The protective mechanism of a rapeseed rotary tiller according to claim 6, characterized in that: A strong spring 2 (323) is sleeved on the outer wall of the slide rod (313), the top of the strong spring 2 (323) is fixedly connected to the connecting block 4 (321), and the bottom of the strong spring 2 (323) is fixedly connected to the connecting block 2 (312).

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