Scarifier for rape planting

Abstract

The invention provides a scarifier for oilseed rape planting, which can intuitively reflect the adjusted scarification depth and improve the adjustment accuracy. A scarifier for rape planting comprises a moving frame, a lifting frame and a guide rod, the guide rod is fixedly connected to the middle of the right side of the moving frame in a penetrating mode, and the lifting frame is sleeved on the guide rod in a sliding mode. The invention relates to the technical field of rape planting, in particular to a scarifier for rape planting. Firstly, a servo motor is started to rotate reversely to drive a lead screw to rotate reversely through a transmission assembly, the lead screw drives a lifting frame to move downwards, the lifting frame drives a scale plate and soil loosening teeth to move downwards, the soil loosening teeth move downwards to adjust the soil loosening depth, a pointer indicates the numerical value on the scale plate, and then the downward moving distance of the soil loosening teeth can be known; and the adjusted soil loosening depth can be seen more visually, so that the adjustment accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of rapeseed planting, in particular to a tiller for rapeseed planting. Background Art

[0002] Before planting rapeseed, the land needs to be loosened and then the rapeseed can be sown. Loose soil is conducive to the growth of rapeseed, and it coordinates water, fertilizer, air and heat to promote the rooting and growth of rapeseed.

[0003] A Chinese patent with publication number CN218104083U discloses a soil loosening device for rapeseed planting, which belongs to the field of crop planting technology. It includes a height adjustment mechanism, a fixing mechanism and loosening teeth. The height adjustment mechanism includes a support frame and a telescopic drive member. The support frame and the fixing mechanism are both movably connected to the telescopic drive member. The loosening teeth are fixedly connected to the support frame, and the support frame is movably connected to the fixing mechanism. The telescopic drive member and the fixing mechanism are both arranged above the loosening teeth. Although the above patent can adjust the loosening depth, the loosening depth cannot be viewed intuitively, resulting in the loosening depth being adjusted by one's own feeling, which easily leads to deviations in the loosening depth.

[0004] The present invention aims to solve the problems existing in the above-mentioned patents. To this end, a rapeseed planting tiller is proposed, which can intuitively reflect the adjusted loosening depth and improve the adjustment accuracy. Summary of the invention

[0005] In order to overcome the disadvantage that although the above patent can adjust the loosening depth, the loosening depth cannot be viewed intuitively, resulting in the loosening depth being adjusted based on one's own feeling, which easily leads to deviation in the loosening depth, the present invention provides a rapeseed planting loosening machine that can intuitively reflect the adjusted loosening depth and improve the adjustment accuracy.

[0006] The present invention is achieved through the following technical approaches: A soil loosening machine for rapeseed planting comprises a movable frame, a lifting frame and a guide rod, wherein the guide rod is fixedly connected with the middle part of the right side of the movable frame, the lifting frame is slidably mounted on the guide rod, a movable assembly is installed on the movable frame, loosening teeth are fixedly connected with the lifting frame at even intervals, a scale plate is fixedly connected with the middle part of the front side of the top of the lifting frame, a pointer is slidably connected with the middle part of the scale plate, the pointer points to the scale of the scale plate, so that the loosening depth can be intuitively displayed for operators to check, a positioning rod is fixedly connected with the front side of the pointer, the positioning rod slidably penetrates the lifting frame, a screw rod threadedly connected with the left side of the lifting frame is rotatably connected with the top left side of the movable frame, and a driving assembly for driving the lifting frame to move up and down is arranged on the movable frame.

[0007] As a further explanation, the lower part of the loosening teeth is a curved structure from front to back.

[0008] To further explain, the moving assembly includes shock-absorbing rollers symmetrically installed on the front and rear sides of the moving frame, and a handle is fixedly connected to the middle of the outer front side surface of the moving frame.

[0009] To further explain, the driving assembly for driving the lifting frame to move up and down includes a mounting frame installed on the outer front side of the moving frame, a servo motor is fixedly connected to the mounting frame, and the output shaft of the servo motor is connected to the upper part of the screw rod through a transmission assembly.

[0010] Further description, it also includes a scraping assembly installed on the moving frame, the scraping assembly is used to scrape the soil under the positioning rod flat, the scraping assembly includes a contact plate fixedly mounted on the positioning rod, a guide frame is symmetrically fixedly connected to the front side of the bottom of the moving frame, and a sliding frame is slidably mounted on the lower part of the guide frame. A return spring is connected between the upper part of the front side surface of the sliding frame and the front side surface of the guide frame. Triangular blocks that drive the contact plate to move upward are fixedly connected to the inner ends of the lower parts of the left and right sliding frames. The triangular blocks are located on the rear side of the contact plate and contact the contact plate. A scraper for scraping the soil flat is fixedly connected between the lower parts of the inner sides of the left and right sliding frames. The scraper is located on the rear side of the positioning rod, and an inclined rod that drives the sliding frame to move forward is symmetrically fixedly connected to the front side surface of the lifting frame.

[0011] To further explain, the lower part of the diagonal rod is an inclined surface, and the inclined surface of the diagonal rod is an inclined structure that is higher in the front and lower in the back.

[0012] Further description includes a scattering component installed on the mobile frame, which is used to scatter the soil. The scattering component includes a U-shaped plate fixedly connected to the rear side of the bottom of the mobile frame, and three groups of rotating shafts are evenly spaced and rotatably connected on the U-shaped plate. The number of rotating shafts in each group is two, and the bottom end of each rotating shaft is fixedly connected to a crushing wheel for scattering the soil. The upper parts of all the rotating shafts are fixedly mounted with column gears, and the column gears on each group of two rotating shafts are meshed with each other. The upper parts of the three groups of left rotating shafts are driven by a synchronous belt assembly, and a rotating assembly for driving the rotating shaft to rotate is provided on the mobile frame.

[0013] Further explanation, the rotating assembly includes a fixed frame fixedly connected to the outer rear side of the moving frame, a reduction motor fixedly connected to the middle of the fixed frame, and the output shaft of the reduction motor and the upper part of the third rotating shaft from the left are driven by a synchronous belt assembly.

[0014] Further description includes baffles, which are symmetrically fixed to the rear side of the bottom of the movable frame to block the ejected soil, and the baffles are located on the left and right sides of the U-shaped plate.

[0015] Further description includes a horizontal plate and a cleaning brush fixedly connected between the lower inner sides of the baffles on both sides. Six groups of cleaning brushes for removing mud attached to the crushing wheels are evenly fixedly connected to the horizontal plate at intervals. The six groups of cleaning brushes are in contact with the six crushing wheels respectively, and the cleaning brushes are elastic.

[0016] The present invention has significant improvements in that: 1. First start the servo motor to reverse and drive the screw to reverse through the transmission assembly. The screw drives the lifting frame to move downward, and the lifting frame drives the scale plate and the loosening teeth to move downward. The loosening teeth move downward to adjust the loosening depth, and the pointer indicates the value on the scale plate, so you can know the distance the loosening teeth move downward, and you can see the adjusted loosening depth more intuitively, thereby improving the accuracy of the adjustment.

[0017] 2. Under the action of the scraper, every time the lifting frame drives the loosening teeth to move downward, the scraper can move forward to scrape the soil under the positioning rod flat, and then the positioning rod contacts the soil for positioning, which can prevent the uneven soil from causing deviation in the initial position of the positioning rod and affecting the scale indication, thereby ensuring the accuracy of adjusting the loosening depth.

[0018] 3. Under the action of the crushing wheel, whenever the loosening teeth start to move backward, the crushing wheel can crush the soil first, and then the loosening teeth will loosen the soil, which can prevent the loosening teeth from breaking large pieces of soil for loosening, thereby improving the loosening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of an embodiment of a tiller for rapeseed planting.

[0020] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of the loosening teeth in one embodiment of a loosening machine for rapeseed planting.

[0021] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of a positioning rod in one embodiment of a tiller for rapeseed planting.

[0022] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of a scale plate in one embodiment of a tiller for rapeseed planting.

[0023] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of a screw rod in one embodiment of a tiller for rapeseed planting.

[0024] Figure 6 The present invention is a schematic diagram of the three-dimensional structure of a scraper in one embodiment of a tiller for rapeseed planting.

[0025] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of part A.

[0026] Figure 8 This is a schematic diagram of the three-dimensional structure of a crushing wheel in an embodiment of a tiller for rapeseed planting.

[0027] Fig. 9 The present invention is a schematic diagram of the three-dimensional structure of a baffle in one embodiment of a tiller for rapeseed planting.

[0028] The meanings of the reference numerals in the figure are as follows: 1: moving frame, 2: shock-absorbing roller, 21: handle, 3: lifting frame, 31: guide rod, 32: positioning rod, 33: scale plate, 34: pointer, 35: loosening tooth, 4: mounting frame, 41: servo motor, 42: transmission assembly, 43: screw rod, 5: guide frame, 51: sliding frame, 52: scraper, 53: triangular block, 54: inclined rod, 55: contact plate, 56: return spring, 6: U-shaped plate, 61: fixed frame, 62: reduction motor, 63: rotating shaft, 64: column gear, 65: crushing wheel, 7: baffle, 8: horizontal plate, 81: cleaning brush. DETAILED DESCRIPTION

[0029] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position. Example 1

[0030] A soil scarifier for rapeseed planting, comprising a moving frame 1, a shock-absorbing roller 2, a handle 21, a lifting frame 3, a guide rod 31, a positioning rod 32, a scale plate 33, a pointer 34, a soil scarifier 35, a mounting frame 4, a servo motor 41, a transmission assembly 42 and a screw rod 43, see Figure 1-Figure 5 As shown, the front and rear sides of the mobile frame 1 are symmetrically provided with shock-absorbing rollers 2, a handle 21 is fixedly connected to the middle of the outer front side of the mobile frame 1, a guide rod 31 is fixedly connected to the middle of the right side of the mobile frame 1, a lifting frame 3 is slidably mounted on the guide rod 31, three loosening teeth 35 are fixedly connected to the lifting frame 3 at even intervals, the lower part of the loosening teeth 35 is a curved structure from front to back, a scale plate 33 is fixedly connected to the middle of the top front side of the lifting frame 3, a pointer 34 is slidably connected to the middle of the scale plate 33, and the pointer 34 points to the scale plate 3 3, so that the loosening depth can be intuitively displayed for the operator to view, the front side of the pointer 34 is fixedly connected with a positioning rod 32, the positioning rod 32 slides through the front side of the lifting frame 3, the top left side of the mobile frame 1 is rotatably connected with a screw rod 43, the screw rod 43 is threadedly connected to the left side of the lifting frame 3, the outer front side of the mobile frame 1 is installed with a mounting frame 4 by bolt connection, a servo motor 41 is fixedly connected to the mounting frame 4, and the output shaft of the servo motor 41 is connected to the upper part of the screw rod 43 by a transmission assembly 42.

[0031] First, hold the handle 21 and push the device to the rapeseed field where the soil needs to be loosened through the shock-absorbing roller 2. At this time, the positioning rod 32 contacts the soil, and the positioning rod 32 is limited by the soil and cannot move downward. The positioning rod 32 makes the pointer 34 also stationary, and then start the servo motor 41 to drive the screw rod 43 to reverse through the transmission assembly 42. The reverse rotation of the screw rod 43 drives the lifting frame 3 to move downward, and the lifting frame 3 moves downward to drive the loosening teeth 35 to move downward. The loosening teeth 35 move downward and are inserted into the soil, thereby adjusting the loosening depth. At the same time, the downward movement of the lifting frame 3 also drives the scale plate 33 to move downward, and the pointer 34 indicates the value on the scale plate 33 that moves downward. The operator can see the adjustment distance of the loosening teeth 35 moving downward, and can more intuitively see the depth of loosening the soil, thereby improving the accuracy of the adjustment. When the loosening depth is adjusted to the required depth, turn off the servo motor 41. , the screw rod 43 stops driving the lifting frame 3 to move downward, the lifting frame 3 stops driving the loosening teeth 35 to move downward, and the lifting frame 3 also stops driving the scale plate 33 to move downward, which can push the movable frame 1 to move backward, and the movable frame 1 moves backward and drives the lifting frame 3 to move backward through the guide rod 31, and the lifting frame 3 moves backward and drives the loosening teeth 35 to move backward, and the loosening teeth 35 move backward to loosen the soil. Since the lower part of the loosening teeth 35 is a curved structure from front to back, it can push the soil more easily, and the effect of loosening the soil is better. When the soil is completely loosened, stop pushing the movable frame 1 to move backward, and the loosening teeth 35 stop moving backward, and then start the servo motor 41 to drive the screw rod 43 to rotate forward through the transmission assembly 42. The screw rod 43 rotates forward and drives the lifting frame 3 to move upward and reset. The lifting frame 3 is reset and drives the scale plate 33 and the loosening teeth 35 to move upward and reset, and the servo motor 41 is turned off. Example 2

[0032] On the basis of embodiment 1, it also includes a guide frame 5, a sliding frame 51, a scraper 52, a triangular block 53, a diagonal rod 54, a contact plate 55 and a return spring 56, see Figure 6 and Figure 7As shown, the lower part of the positioning rod 32 is fixedly sleeved with a contact plate 55, the front side of the bottom of the moving frame 1 is symmetrically fixed with a guide frame 5, and the lower parts of the left and right guide frames 5 are slidably sleeved with a sliding frame 51, and the upper parts of the front sides of the left and right sliding frames 51 are respectively connected to the inner front sides of the left and right guide frames 5. A return spring 56 is connected between the upper parts of the front sides of the left and right sliding frames 51 and the inner ends of the lower parts of the left and right sliding frames 51 are fixedly connected with a triangular block 53, which is located at the rear side of the contact plate 55 and contacts the contact plate 55. When the triangular block 53 moves horizontally, the three The corner block 53 can drive the contact plate 55 to move upward. A scraper 52 is fixedly connected between the lower parts of the inner sides of the left and right sliding frames 51. The scraper 52 is located on the rear side of the positioning rod 32. When the scraper 52 moves horizontally, the scraper 52 can scrape the soil flat. The front side of the lifting frame 3 is symmetrically fixed with inclined rods 54. The lower parts of the inclined rods 54 on the left and right sides are inclined surfaces. The inclined surfaces of the inclined rods 54 on the left and right sides are inclined structures with the front side being higher and the rear side being lower. When the inclined rods 54 move downward, the inclined rods 54 can drive the sliding frame 51 to move forward.

[0033] It also includes a U-shaped plate 6, a fixing frame 61, a reduction motor 62, a rotating shaft 63, a column gear 64 and a crushing wheel 65, see Figure 8 As shown, a U-shaped plate 6 is fixedly connected to the rear side of the bottom of the mobile frame 1, and three groups of rotating shafts 63 are evenly spaced and rotatably connected on the U-shaped plate 6. The number of rotating shafts 63 in each group is two, and a crushing wheel 65 is fixedly connected to the bottom end of each rotating shaft 63. When the crushing wheel 65 rotates, the crushing wheel 65 can break up the soil. The upper parts of the six rotating shafts 63 are fixedly mounted with column gears 64, and the column gears 64 on each group of two rotating shafts 63 are meshed. The upper parts of the rotating shafts 63 on the left side of the three groups are driven by a synchronous belt assembly. A fixed frame 61 is fixedly connected to the outer rear side surface of the mobile frame 1, and a reduction motor 62 is fixedly connected to the middle part of the fixed frame 61. The output shaft of the reduction motor 62 and the upper part of the third rotating shaft 63 from the left are driven by a synchronous belt assembly.

[0034] When the lifting frame 3 moves downward and drives the loosening teeth 35 to move downward to adjust the loosening depth, the lifting frame 3 moves downward and also drives the inclined rod 54 to move downward, and the inclined rod 54 moves downward and drives the sliding frame 51 to move forward, the return spring 56 is compressed, and the sliding frame 51 moves forward and drives the triangular block 53 to move forward, and the inclined surface of the triangular block 53 contacts the contact plate 55, and the triangular block 53 drives the contact plate 55 to move upward, and the contact plate 55 moves upward and drives the positioning rod 32 to move upward, and the positioning rod 32 moves upward and breaks contact with the soil, and at the same time, the sliding frame 5 The forward movement of the triangular block 53 also drives the scraper 52 to move forward. The scraper 52 moves forward to scrape the soil below the positioning rod 32 flat. When the triangular block 53 continues to move forward, the triangular block 53 stops limiting the contact plate 55. Due to the effect of gravity, the positioning rod 32 moves downward to reset and contact the scraped soil. At the same time, the downward movement of the positioning rod 32 also drives the contact plate 55 to move downward to reset. When the lifting frame 3 stops moving downward, the lifting frame 3 stops driving the inclined rod 54 to move downward, and the scraper 52 stops moving forward, and the soil can be loosened. When the soil is loosened, the lifting frame 3 moves upward to reset and drives the loosening teeth 35 to move upward to reset, the lifting frame 3 resets and drives the inclined rod 54 to move upward to reset, the inclined rod 54 moves upward to reset and stops to limit the sliding frame 51, due to the action of the reset spring 56, the sliding frame 51 moves backward to reset and drives the triangular block 53 to move backward to reset, the triangular block 53 moves backward to drive the contact plate 55 to move upward, the contact plate 55 moves upward to drive the positioning rod 32 to move upward, the positioning rod 32 moves upward to break contact with the soil, and then the sliding frame 51 drives the scraper 52 to move backward to reset, the triangular block 53 resets and stops to limit the contact plate 55, due to the action of gravity, the positioning rod 32 moves downward to reset and drives the contact plate 55 to move downward to reset. In this way, it can prevent the initial position of the positioning rod 32 from deviating due to uneven soil and affecting the indication of the scale, thereby ensuring the accuracy of adjusting the loosening depth.

[0035] When the device moves to the rapeseed field, the crushing wheel 65 contacts the soil, and then the loosening teeth 35 move backward to start loosening the soil, and the reduction motor 62 is started. The reduction motor 62 drives the rotating shaft 63 on the left side of the middle to rotate through the synchronous belt assembly. The rotation of the rotating shaft 63 on the left side of the middle drives each group of rotating shafts 63 on the left side to rotate forward through the synchronous belt assembly. The forward rotation of each group of rotating shafts 63 on the left side drives each group of rotating shafts 63 on the right side to rotate forward through the column gear 64. The forward rotation of all rotating shafts 63 drives all crushing wheels 65 to rotate forward. All crushing wheels 65 rotate forward to break up the soil first, and then the loosening teeth 35 move backward to loosen the soil. When all the soil is loosened, the reduction motor 62 is turned off, and all rotating shafts 63 stop driving all crushing wheels 65 to rotate. In this way, it can be prevented that the loosening teeth 35 are difficult to break large pieces of soil for loosening, thereby improving the loosening effect. Example 3

[0036] On the basis of the embodiment 1 and the embodiment 2, a baffle 7 is also included. Fig. 9 As shown, baffles 7 are fixedly connected symmetrically to the left and right sides of the bottom rear side of the mobile frame 1. The baffles 7 are located on the left and right sides of the U-shaped plate 6. When the crushing wheel 65 breaks up the soil, the baffles 7 can block the ejected soil.

[0037] Also includes a horizontal plate 8 and a cleaning brush 81, see Fig. 9 As shown, a transverse plate 8 is fixedly connected between the lower parts of the inner sides of the left and right baffles 7, and six groups of cleaning brushes 81 are evenly spaced and fixedly connected to the transverse plate 8. The six groups of cleaning brushes 81 are in contact with the six crushing wheels 65 respectively. The cleaning brushes 81 are elastic. When the crushing wheel 65 rotates, the cleaning brushes 81 can remove the mud attached to the crushing wheel 65.

[0038] When the crushing wheel 65 rotates to break up the soil first, the baffle 7 can block the debris ejected during the breaking process, so as to prevent the soil from being ejected to both sides, resulting in a reduction of soil at the position after loosening the soil and affecting planting, thereby ensuring the integrity of the soil.

[0039] When the crushing wheel 65 rotates to break up the soil, the cleaning brush 81 can remove the soil attached to the crushing wheel 65. In this way, the crushing wheel 65 can be prevented from being attached with soil to affect subsequent use, thereby ensuring the subsequent use effect of the crushing wheel 65.

[0040] Finally, it is necessary to point out that the above content is only used to help understand the technical solution of the present invention and cannot be understood as limiting the scope of protection of the present invention; non-essential improvements and adjustments made by technical personnel in the field of technology based on the above content of the present invention are all within the scope of protection required by the present invention.

Claims

1. A soil scarifier for rapeseed planting, comprising a movable frame (1), a lifting frame (3) and a guide rod (31), wherein the guide rod (31) is fixedly connected to the middle part of the right side of the movable frame (1), the lifting frame (3) is slidably mounted on the guide rod (31), and a movable assembly is installed on the movable frame (1), wherein: Loosening teeth (35) are fixedly connected to the lifting frame (3) at even intervals. A scale plate (33) is fixedly connected to the middle of the front side of the top of the lifting frame (3). A pointer (34) is slidably connected to the middle of the scale plate (33). The pointer (34) points to the scale of the scale plate (33) so that the loosening depth can be displayed intuitively for the operator to check. A positioning rod (32) is fixedly connected to the front side of the pointer (34). The positioning rod (32) slidably penetrates the lifting frame (3). A screw rod (43) threadedly connected to the left side of the lifting frame (3) is rotatably connected to the top left side of the moving frame (1). A driving component for driving the lifting frame (3) to move up and down is arranged on the moving frame (1).

2. A soil scarifier for rapeseed planting according to claim 1, characterized in that: The bottom of the loosening tooth (35) is a curved structure from front to back.

3. A soil scarifier for rapeseed planting according to claim 1, characterized in that: The moving assembly comprises shock-absorbing rollers (2) symmetrically mounted on the front and rear sides of the moving frame (1); a handle (21) is fixedly connected to the middle of the outer front side surface of the moving frame (1).

4. A soil scarifier for rapeseed planting according to claim 1, characterized in that: A driving assembly for driving the lifting frame (3) to move up and down comprises a mounting frame (4) mounted on the outer front side of the moving frame (1), a servo motor (41) being fixedly connected to the mounting frame (4), and an output shaft of the servo motor (41) and an upper part of the screw rod (43) being connected via a transmission assembly (42).

5. A soil scarifier for rapeseed planting according to claim 1, characterized in that: The mobile frame (1) also includes a scraping assembly mounted on the mobile frame (1), the scraping assembly is used to scrape the soil below the positioning rod (32) flat, the scraping assembly includes a contact plate (55) fixedly mounted on the positioning rod (32), the front side of the bottom of the mobile frame (1) is symmetrically fixed with a guide frame (5), the lower part of the guide frame (5) is slidably mounted with a sliding frame (51), and a return spring (56) is connected between the upper part of the front side of the sliding frame (51) and the inner front side of the guide frame (5), and the left and right sides of the sliding frame (5) are symmetrically fixedly mounted with a guide frame (51 ...) The lower inner ends of the sliding frames (51) on both sides are fixedly connected with triangular blocks (53) for driving the contact plate (55) to move upwards. The triangular blocks (53) are located at the rear side of the contact plate (55) and are in contact with the contact plate (55). A scraper (52) for scraping the soil flat is fixedly connected between the lower parts of the inner side surfaces of the left and right sliding frames (51). The scraper (52) is located at the rear side of the positioning rod (32). The front side surface of the lifting frame (3) is symmetrically fixedly connected with oblique rods (54) for driving the sliding frame (51) to move forwards.

6. A soil scarifier for rapeseed planting according to claim 5, characterized in that: The lower part of the inclined rod (54) is an inclined surface, and the inclined surface of the inclined rod (54) is an inclined structure with a high front and a low rear.

7. A soil scarifier for rapeseed planting according to claim 5, characterized in that: The invention also comprises a breaking up assembly mounted on the mobile frame (1), the breaking up assembly is used to break up the soil, the breaking up assembly comprises a U-shaped plate (6) fixedly connected to the rear side of the bottom of the mobile frame (1), three groups of rotating shafts (63) are evenly spaced and rotatably connected on the U-shaped plate (6), each group of rotating shafts (63) has two shafts, and the bottom end of each rotating shaft (63) is fixedly connected to a crushing wheel (65) for breaking up the soil, and the upper parts of all the rotating shafts (63) are fixedly sleeved with column gears (64), and the column gears (64) on the two rotating shafts (63) of each group are meshed with each other, and the upper parts of the three groups of rotating shafts (63) on the left are driven by a synchronous belt assembly, and a rotating assembly for driving the rotating shafts to rotate is arranged on the mobile frame (1).

8. A soil scarifier for rapeseed planting according to claim 7, characterized in that: The rotating assembly comprises a fixed frame (61) fixedly connected to the outer rear side of a moving frame (1), a reduction motor (62) fixedly connected to the middle of the fixed frame (61), and a synchronous belt assembly is used to transmit power between the output shaft of the reduction motor (62) and the upper part of the third rotating shaft (63) from the left.

9. A soil scarifier for rapeseed planting according to claim 8, characterized in that: It also includes a baffle (7), which is symmetrically fixed to the rear side of the bottom of the movable frame (1) and blocks the ejected soil. The baffle (7) is located on the left and right sides of the U-shaped plate (6).

10. A soil scarifier for rapeseed planting according to claim 9, characterized in that: The invention also comprises a transverse plate (8) and a cleaning brush (81) fixedly connected between the lower parts of the inner side surfaces of the baffle plates (7) on both sides. Six groups of cleaning brushes (81) for removing mud attached to the crushing wheels (65) are fixedly connected to the transverse plate (8) at even intervals. The six groups of cleaning brushes (81) are in contact with the six crushing wheels (65) respectively. The cleaning brushes (81) are elastic.

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