Rotary tillage depth adjusting mechanism for single-shaft rotary cultivator

Abstract

The rotary tillage depth adjusting mechanism comprises a rotary tillage frame body, a first motor is installed on one side of the rotary tillage frame body, one side of the first motor is connected with a first rotating rod, and the end, away from the first motor, of the first rotating rod extends into the rotary tillage frame body. A first supporting arm and a second supporting arm are arranged on the rotary tillage frame body, one end, located in the rotary tillage frame body, of the first rotating rod penetrates through the first supporting arm and the second supporting arm, and the penetrating positions of the first supporting arm and the second supporting arm and the first rotating rod are fixed. The rotary blade is arranged at the bottom of the fixing block, the soil loosening rod and the rotary blade can be switched to the bottom respectively, soil loosening and rotary tillage are conducted on the land respectively, the telescopic cylinder is further arranged in the fixing block, the distance of the rotary blade can be adjusted through the telescopic cylinder, and therefore the depth adjusting range is further increased on the basis of angle adjusting.

Description

Technical Field

[0001] The utility model relates to the field of single - shaft rotary tillers, in particular to a rotary tilling depth adjustment mechanism for a single - shaft rotary tiller. Background Technique

[0002] The single - shaft rotary tiller is the most common type of rotary tiller, which mainly consists of a rotating shaft and multiple blades. The working principle of the single - shaft rotary tiller is that the blades rotate at high speed driven by the rotating shaft, so as to cut, turn over and break the soil. This kind of rotary tiller has a simple structure and is easy to operate, suitable for various soil conditions, especially suitable for tilling small farmlands.

[0003] According to the adjustable device of a self - propelled crawler rotary tiller in the public patent 202122058856.2, it includes an adjustment mechanism and a rotary tilling mechanism arranged on the frame. The adjustment mechanism includes a first hydraulic cylinder and a second hydraulic cylinder. One ends of the first hydraulic cylinder and the second hydraulic cylinder are fixed on the frame, and the other ends of the first hydraulic cylinder and the second hydraulic cylinder are connected to the rotary tilling mechanism. The rotary tilling mechanism includes a front moving plate and a rear moving plate. Between the lower ends of the front moving plate and the rear moving plate, rotary rollers are arranged through a first shaft and a second shaft respectively, and bearings are arranged at the connection parts. A plurality of rotary tilling blades are circumferentially arranged on the outer surface of the rotary roller. The beneficial effects of the utility model are: due to the adoption of the above technical scheme, under the action of the first hydraulic cylinder and the second hydraulic cylinder, the height of the rotary tilling mechanism from the ground can be changed, and the tilling depth can be changed, which is suitable for different crops; under the action of the shock - absorbing spring, the rotary tilling blades are protected.

[0004] However, during the use process, in the field of traditional agricultural machinery, the rotary tilling depth adjustment mechanism equipped with a single - shaft rotary tiller is limited by the limited number of its blade configurations. When facing soil conditions with higher hardness, its operation efficiency is often restricted, and it is difficult to fully break and till the soil, showing deficiencies in performance. In view of this, to ensure the smooth progress of the rotary tilling operation, technicians usually need to additionally introduce soil loosening equipment to pre - treat the field before the rotary tilling operation, aiming to break the hard soil clumps first to reduce the operation burden of the rotary tiller. However, this step - by - step operation mode not only requires operators to alternately use the soil loosener and the rotary tiller, greatly increasing the labor input and operation complexity, but also inevitably prolongs the overall operation cycle, having a negative impact on the efficiency of farmland tillage. In addition, the current single - shaft rotary tiller mainly indirectly controls the rotary tilling depth by adjusting the inclination angle of the blades or the cutter shaft. This single adjustment method has limitations in the depth control range and is difficult to flexibly adapt to the changes in different soil textures and tillage requirements. Therefore, new technical solutions need to be designed to solve this problem. Content of the Utility Model

[0005] The purpose of the present utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a rotary tillage depth adjustment mechanism for a single-shaft rotary tiller, so as to solve the technical problems in the current traditional agricultural machinery field. The rotary tillage depth adjustment mechanism equipped on a single-shaft rotary tiller is limited by the limited number of its blade configurations. When facing soil conditions with higher hardness, its operation efficiency is often restricted, and it is difficult to fully break and plow the soil, showing deficiencies in performance. In view of this, to ensure the smooth progress of the rotary tillage operation, technicians usually need to additionally introduce soil loosening equipment to pre-treat the fields before the rotary tillage operation, aiming to break the hard soil clumps first to reduce the operation burden of the rotary tiller. However, this step-by-step operation mode not only requires operators to alternately use a ripper and a rotary tiller, greatly increasing the labor input and operation complexity, but also inevitably prolongs the overall operation cycle, having a negative impact on the efficiency of farmland tillage. In addition, the current single-shaft rotary tiller mainly indirectly controls the rotary tillage depth by adjusting the inclination angle of the blades or the cutter shaft. This single adjustment method has limitations in the depth control range and is difficult to flexibly adapt to the changes in different soil textures and tillage requirements.

[0006] To achieve the purpose of the present utility model, the technical solution adopted by the present utility model is as follows: Design a rotary tillage depth adjustment mechanism for a single-shaft rotary tiller, including a rotary tillage frame body. A first motor is installed on one side of the rotary tillage frame body. A first rotating rod is connected to one side of the first motor. The end of the first rotating rod away from the first motor extends into the rotary tillage frame body. The end of the first rotating rod located inside the rotary tillage frame body passes through a first support arm and a second support arm, and the positions where the first support arm and the second support plate penetrate the first rotating rod are fixed;

[0007] A rotary tillage and soil loosening assembly is arranged at the front end between the first support arm and the second support arm.

[0008] Preferably, the rotary tillage and soil loosening assembly includes a fixed block, a first groove, a second motor, a rotating strip plate, a soil loosening rod, a first fixing plate, a second fixing plate, a third motor, a second rotating rod, and a rotary tillage blade.

[0009] Preferably, a plurality of first grooves are opened at the top of the fixed block. A second motor is installed at the bottom end inside the plurality of first grooves. A rotating strip plate is fixed to the top of the second motor. Soil loosening rods are fixed to both sides of the top of the rotating strip plate.

[0010] Preferably, a first fixing plate and a second fixing plate are respectively arranged on both sides of the bottom of the fixed block. A third motor is installed on one side of the second fixing plate. A second rotating rod is connected to one side of the third motor. One end of the second rotating rod passes through the second fixing plate and extends between the second fixing plate and the first fixing plate. A plurality of rotary tillage blades are installed on the outside of the second rotating rod.

[0011] Preferably, a plurality of second grooves are formed in the top of the fixing block, and the plurality of second grooves are located between the plurality of first grooves. A water tank is installed inside the second grooves, a water pump is connected to the top of the water tank, and a spray head is connected to the top of the water pump.

[0012] Preferably, one end of a water pipe is connected to the upper and lower ends of the front end of the water tank, and the other end of the water pipe passes through the fixing block and is detachably connected to a pipe cap.

[0013] Preferably, circular grooves are formed on both sides of the bottom of the fixing block, a telescopic cylinder is installed inside the circular grooves, and a first fixing plate and a second fixing plate are fixed to the bottom of the telescopic cylinder.

[0014] Preferably, a fourth motor is installed on one side of the first support arm. The fourth motor passes through the first support arm on one side and is connected to a fixing block. A third rotating rod is fixed to one end of the fixing block away from the fourth motor, and a bearing is rotatably connected to one end of the third rotating rod away from the fixing block. The bearing is installed on the inner side of the second support arm.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. Through the combination of the first motor, the fourth motor and the rotary tillage and soil loosening assembly, the present utility model can not only adjust the overall angle of the rotary tillage and soil loosening assembly by using the first motor, but also turn the rotary tillage and soil loosening assembly by using the fourth motor. Since a soil loosening rod is provided on the top of the fixing block and a rotary tillage blade is provided on the bottom of the fixing block, the soil loosening rod and the rotary tillage blade can be respectively switched to the bottom to loosen and rotary till the land respectively. The soil loosening mechanism and the rotary tillage mechanism are integrated. Moreover, a telescopic cylinder is also provided inside the fixing block, which can adjust the distance of the rotary tillage blade by using the telescopic cylinder, so as to further increase the adjustment range of the depth on the basis of adjusting the angle, and solve the technical problem that in the current traditional agricultural machinery field, the rotary tillage depth adjustment mechanism equipped with a single-shaft rotary tiller is limited by the limited number of its blade configurations. When facing soil conditions with higher hardness, its operation efficiency is often restricted, and it is difficult to fully break and turn over the soil, showing deficiencies in performance. In view of this, to ensure the smooth progress of the rotary tillage operation, technicians usually need to additionally introduce soil loosening equipment to pre-treat the field before the rotary tillage operation, aiming to break the hard soil clumps first to reduce the operation burden of the rotary tiller. However, this step-by-step operation mode not only requires operators to alternately use a soil loosener and a rotary tiller, greatly increasing the labor input and operation complexity, but also inevitably prolongs the overall operation cycle, having a negative impact on the efficiency of farmland tillage. In addition, the current single-shaft rotary tiller mainly indirectly controls the rotary tillage depth by adjusting the inclination angle of the blade or the cutter shaft. This single adjustment method has limitations in the depth control range and is difficult to flexibly adapt to the changes in different soil textures and tillage requirements.

[0017] 2. By combining the second groove, the water tank and the nozzle, during the process of loosening the ground soil with the soil loosening rod, the present utility model can pump out the water in the water tank by means of a water pump, and humidify the continuously loosened and stirred soil through the nozzle, so that the sprayed water enters the soil at different positions, improving the effect of soil humidification, and integrating the humidifying mechanism with the soil loosening structure and the rotary tillage mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the fixing block of the present utility model;

[0020] Figure 3 is a schematic diagram of the internal structure of the circular groove of the present utility model.

[0021] In the figure: 1, rotary tillage frame; 2, first motor; 201, first rotating rod; 202, first support arm; 203, second support arm; 204, fourth motor; 205, fixing block; 206, third rotating rod; 207, bearing; 208, first fixing plate; 209, second fixing plate; 210, third motor; 211, second rotating rod; 212, rotary tillage blade; 213, circular groove; 214, telescopic cylinder; 3, water pipe; 301, pipe cover; 302, rotating strip plate; 303, soil loosening rod; 304, second groove; 305, water tank; 306, water pump; 307, nozzle; 308, first groove; 309, second motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described below with reference to the drawings and embodiments:

[0023] Embodiment 1: A rotary tillage depth adjustment mechanism for a single-shaft rotary tiller, see Figures 1 to 3, including a rotary tillage frame body 1, a first motor 2 is installed on one side of the rotary tillage frame body 1, a first rotating rod 201 is connected to one side of the first motor 2, and the end of the first rotating rod 201 away from the first motor 2 extends into the rotary tillage frame body 1. The end of the first rotating rod 201 located inside the rotary tillage frame body 1 passes through the first support arm 202 and the second support arm 203, and the positions where the first support arm 202 and the second support plate penetrate the first rotating rod 201 are fixed; a rotary tillage and soil loosening assembly is arranged at the front end between the first support arm 202 and the second support arm 203. First, turn on the first motor 2. The first motor 2 drives the first rotating rod 201, and the first rotating rod 201 drives the first support arm 202 and the second support arm 203 to move. The first support arm 202 and the second support arm 203 will drive the angles of the fixed block 205, the rotary tillage blades 212 and the soil loosening rods 303 to be adjusted. After the adjustment is completed, the third motor 210 can be turned on. The third motor 210 drives the second rotating rod 211, and the second rotating rod 211 drives a plurality of rotary tillage blades 212 to perform rotary tillage on the ground. When it is necessary to further adjust the depth of the plurality of rotary tillage blades 212, the telescopic cylinder 214 can be turned on. The telescopic cylinder 214 is used to drive the first fixing plate 208 and the second fixing plate 209 to move. The first fixing plate 208 and the second fixing plate 209 will drive the second rotating rod 211 and the rotary tillage blades 212 to move, so that the rotary tillage blades 212 extend into the soil depth for rotary tillage. Before rotary tillage, the fourth motor 204 can be turned on. The fourth motor 204 drives the fixed block 205 to flip, rotates the soil loosening rods 303 to the bottom, and then turns on the second motor 309. The second motor 309 will drive the soil loosening rods 303 to rotate, thereby performing soil loosening operation on the ground. The soil loosening mechanism and the rotary tillage mechanism are integrated, which solves the technical problem that in the field of traditional agricultural machinery, the rotary tillage depth adjustment mechanism equipped with a single-shaft rotary tiller is limited by the limited number of its blade configurations. When facing soil conditions with higher hardness, its operation efficiency is often restricted, and it is difficult to fully break and plow the soil, showing deficiencies in performance. In view of this, to ensure the smooth progress of rotary tillage operations, technicians usually need to additionally introduce soil loosening equipment to pre-treat the fields before rotary tillage operations, aiming to first break the hard soil clumps to reduce the operation burden of the rotary tiller. However, this step-by-step operation mode not only requires operators to alternately use a soil loosener and a rotary tiller, greatly increasing the labor input and operation complexity, but also inevitably prolongs the overall operation cycle, having a negative impact on the efficiency of farmland tillage. In addition, the current single-shaft rotary tiller mainly indirectly controls the rotary tillage depth by adjusting the inclination angle of the blades or the knife shaft. This single adjustment method has limitations in the depth control range and is difficult to flexibly adapt to changes in different soil textures and tillage requirements.

[0024] Specifically, refer to Figure 1 and Figure 2, the rotary tillage and soil loosening assembly includes a fixed block 205, a first groove 308, a second motor 309, a rotary strip plate 302, a soil loosening rod 303, a first fixing plate 208, a second fixing plate 209, a third motor 210, a second rotating rod 211, and a rotary tillage blade 212.

[0025] Specifically, refer to Figure 2 , a plurality of first grooves 308 are opened at the top of the fixed block 205, a second motor 309 is installed at the bottom end inside the plurality of first grooves 308, a rotary strip plate 302 is fixed to the top of the second motor 309, and soil loosening rods 303 are fixed to both sides of the top of the rotary strip plate 302.

[0026] Furthermore, refer to Figure 2 , first fixing plate 208 and a second fixing plate 209 are respectively arranged on both sides of the bottom of the fixed block 205, a third motor 210 is installed on one side of the second fixing plate 209, a second rotating rod 211 is connected to one side of the third motor 210, one end of the second rotating rod 211 passes through the second fixing plate 209 and extends between the second fixing plate 209 and the first fixing plate 208, and a plurality of rotary tillage blades 212 are installed on the outside of the second rotating rod 211.

[0027] Even further, refer to Figure 2 , a plurality of second grooves 304 are opened at the top of the fixed block 205, the plurality of second grooves 304 are located between the plurality of first grooves 308, a water tank 305 is installed inside the second grooves 304, a water pump 306 is connected to the top of the water tank 305, a spray head 307 is connected to the top of the water pump 306. During the process of the soil loosening rod 303 loosening the soil, the water pump 306 can be turned on, and the water pump 306 will pump out the water in the water tank 305, and the water sprayed through the spray head 307 will humidify the soil loosened on the ground, so that the sprayed water enters the soil at different positions, improving the effect of humidifying the soil, and integrating the humidifying mechanism with the soil loosening structure and the rotary tillage mechanism.

[0028] It should be noted that, refer to Figure 1 , both the upper and lower ends of the front end of the water tank 305 are connected to one end of a water pipe 3, and the other end of the water pipe 3 passes through the fixed block 205 and is detachably connected to a pipe cap 301.

[0029] It should be noted that, refer to Figure 3 , circular grooves 213 are opened on both sides of the bottom of the fixed block 205, telescopic cylinders 214 are installed inside the circular grooves 213, and the first fixing plate 208 and the second fixing plate 209 are fixed to the bottom of the telescopic cylinders 214.

[0030] It is worth introducing that, refer to Figure 1, a fourth motor 204 is installed on one side of the first support arm 202. One side of the fourth motor 204 passes through the first support arm 202 and is connected to a fixed block 205. A third rotating rod 206 is fixed to the end of the fixed block 205 away from the fourth motor 204. The end of the third rotating rod 206 away from the fixed block 205 is rotatably connected to a bearing 207, and the bearing 207 is installed on the inner side of the second support arm 203.

[0031] When using a rotary tillage depth adjustment mechanism for a single-shaft rotary tiller, first turn on the first motor 2. The first motor 2 drives the first rotating rod 201, and the first rotating rod 201 drives the first support arm 202 and the second support arm 203 to move. The first support arm 202 and the second support arm 203 will drive the angles of the fixed block 205, the rotary tillage blades 212 and the soil loosening rods 303 to be adjusted. After the adjustment is completed, the third motor 210 can be turned on. The third motor 210 drives the second rotating rod 211, and the second rotating rod 211 drives multiple rotary tillage blades 212 to perform rotary tillage on the ground. When it is necessary to further adjust the depth of the multiple rotary tillage blades 212, the telescopic cylinder 214 can be turned on. The telescopic cylinder 214 is used to drive the first fixing plate 208 and the second fixing plate 209 to move. The first fixing plate 208 and the second fixing plate 209 will drive the second rotating rod 211 and the rotary tillage blades 212 to move, so that the rotary tillage blades 212 extend into the soil depth for rotary tillage. Before performing rotary tillage, the fourth motor 204 can be turned on. The fourth motor 204 drives the fixed block 205 to flip, rotates the soil loosening rod 303 to the bottom, and then turns on the second motor 309. The second motor 309 will drive the soil loosening rod 303 to rotate, so as to perform soil loosening operation on the ground. The soil loosening mechanism and the rotary tillage mechanism are integrally arranged. During the process of the soil loosening rod 303 loosening the soil, the water pump 306 can be turned on. The water pump 306 will pump out the water in the water tank 305, and the water is sprayed through the nozzle 307 to humidify the soil loosened on the ground, so that the sprayed water enters the soil at different positions, improving the effect of soil humidification. The humidification mechanism is integrally arranged with the soil loosening structure and the rotary tillage mechanism.

[0032] In addition, the components designed in the present utility model are all common standard components or components known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or by conventional experimental methods. Those skilled in the art can fully implement them without further elaboration. The content protected by the present utility model does not involve improvements to the internal structure and method.

[0033] The embodiments disclosed in the present utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model according to the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are all within the protection scope of the present utility model.

Claims

1. A rotary tillage depth adjustment mechanism for a single-shaft rotary tiller, including a rotary tillage frame body (1), characterized in that, One side of the rotary tillage frame body (1) is provided with a first motor (2). One side of the first motor (2) is connected to a first rotating rod (201). The end of the first rotating rod (201) away from the first motor (2) extends into the rotary tillage frame body (1). The end of the first rotating rod (201) located inside the rotary tillage frame body (1) passes through a first support arm (202) and a second support arm (203), and the positions where the first support arm (202) and the second support plate are penetrated by the first rotating rod (201) are fixed. A rotary tillage and soil loosening assembly is arranged at the front end between the first support arm (202) and the second support arm (203).

2. The rotary tillage depth adjustment mechanism for a single-shaft rotary tiller according to claim 1, characterized in that, The rotary tillage and soil loosening assembly includes a fixing block (205), a first groove (308), a second motor (309), a rotating strip plate (302), a soil loosening rod (303), a first fixing plate (208), a second fixing plate (209), a third motor (210), a second rotating rod (211), and a rotary tillage blade (212).

3. The rotary tillage depth adjustment mechanism for a single-shaft rotary tiller according to claim 2, characterized in that, A plurality of first grooves (308) are formed at the top of the fixing block (205). A second motor (309) is installed at the bottom end inside the plurality of first grooves (308). A rotating strip plate (302) is fixed to the top of the second motor (309). Soil loosening rods (303) are fixed to both sides of the top of the rotating strip plate (302).

4. The rotary tillage depth adjustment mechanism for a single-shaft rotary tiller according to claim 2, characterized in that, A first fixing plate (208) and a second fixing plate (209) are respectively arranged on both sides of the bottom of the fixing block (205). A third motor (210) is installed on one side of the second fixing plate (209). One side of the third motor (210) is connected to a second rotating rod (211). One end of the second rotating rod (211) passes through the second fixing plate (209) and extends between the second fixing plate (209) and the first fixing plate (208). A plurality of rotary tillage blades (212) are installed on the outer part of the second rotating rod (211).

5. The rotary tillage depth adjustment mechanism for a single-shaft rotary tiller according to claim 2, characterized in that, A plurality of second grooves (304) are formed at the top of the fixing block (205). The plurality of second grooves (304) are located between the plurality of first grooves (308). A water tank (305) is installed inside the second grooves (304). A water pump (306) is communicated with the top of the water tank (305). A spray head (307) is communicated with the top of the water pump (306).

6. The rotary tillage depth adjustment mechanism for a single-shaft rotary tiller according to claim 5, characterized in that, One ends of water pipes (3) are communicated with the upper and lower ends of the front end of the water tank (305). The other ends of the water pipes (3) pass through the fixing block (205) and are detachably connected with pipe covers (301).

7. The rotary tillage depth adjustment mechanism for a single-shaft rotary tiller according to claim 2, characterized in that, Circular grooves (213) are formed on both sides of the bottom of the fixing block (205). A telescopic cylinder (214) is installed inside the circular grooves (213). The bottom of the telescopic cylinder (214) is fixed to the first fixing plate (208) and the second fixing plate (209).

8. The rotary tillage depth adjustment mechanism for a single-shaft rotary tiller according to claim 1, characterized in that, A fourth motor (204) is installed on one side of the first support arm (202). One side of the fourth motor (204) passes through the first support arm (202) and is connected to a fixed block (205). A third rotating rod (206) is fixed to the end of the fixed block (205) away from the fourth motor (204). The end of the third rotating rod (206) away from the fixed block (205) is rotatably connected to a bearing (207), and the bearing (207) is installed on the inner side of the second support arm (203).

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