Adjustable mud scraper for press wheel of rotary cultivator

Abstract

The utility model discloses a rotary cultivator press wheel adjustable mud scraper which comprises two connecting plates, a mud scraping rod frame and a mud scraper assembly, the two connecting plates are symmetrically arranged and are respectively connected with a rack at the rear end of a rotary cultivator, the two ends of the mud scraping rod frame are respectively connected with the connecting plates, and the mud scraper assembly is arranged on the mud scraping rod frame. The mud scraping plate assembly comprises an upper fixing plate, an upper sleeve seat, a lower mud scraping plate assembly, a first bolt, a limiting bolt and a buffering assembly, the upper fixing plate is fixedly connected with the mud scraping rod frame, the upper sleeve seat is welded to the upper fixing plate, and the upper end of the lower mud scraping plate assembly is inserted into the upper sleeve seat and hinged to the upper sleeve seat through the first bolt; the limiting bolt is screwed on the rear side of the upper sleeve base through a screw pair, the buffering assembly penetrates into the front side of the upper sleeve base and penetrates through the lower mud scraping plate assembly, gap adjustment between the mud scraping plate and the press wheel is achieved, the mud scraping efficiency and capacity of the mud scraping plate are improved, and it is guaranteed that the surface of the press wheel is clean and flat. The soil compaction quality and the emergence rate, full seedling time and soil moisture conservation of the seeds are ensured; the device can adapt to soil with different water contents.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery and equipment, and specifically relates to an adjustable mud scraper of a pressing wheel of a rotary tiller. Background Art

[0002] In recent years, rotary tillage has been widely used in crop cultivation. After rotary tillage, the upper soil is too loose, and the seeds often cannot be in close contact with the soil after mechanical sowing, resulting in hanging seeds and roots. This is especially prominent under the condition of returning straw to the field, which affects the normal water absorption and growth of seedlings and makes them susceptible to drought and frost. Therefore, it is necessary to suppress the upper soil after sowing. The tillage layer is compacted by suppression, the moisture content in the tillage layer is maintained, and the seeds are in close contact with the soil. At the same time, suppression can also make micro-adjustments to the soil depth differences, so that the depth of the seeds tends to be consistent, which better guarantees the sowing quality and provides a moderately loose environment for seed germination, emergence, and growth. The seeds absorb water and nutrients consistently, ensuring that the seeds can germinate quickly and emerge uniformly. However, due to factors such as the water content and soil quality of the soil, the mud adhered to the pressing wheel during suppression needs to be scraped off with a mud scraper. At present, a rigid scraper is used on the pressing wheel. When mud adheres to the surface of the pressing wheel and forms an elliptical shape, the rigid scraper cannot contact the pressing wheel, so the rigid scraper cannot completely remove the mud adhered to the pressing wheel, affecting the quality of soil compaction, seed germination rate, seedling uniformity time and moisture retention. Utility Model Content

[0003] The utility model provides an adjustable scraper plate of a rotary tiller pressing wheel to solve the technical problems existing in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an adjustable scraper plate of a rotary tiller pressing wheel, comprising a connecting plate, a scraper rod frame and a scraper plate assembly, wherein two connecting plates are symmetrically arranged and are respectively connected to the rear end frame of the rotary tiller, and the two ends of the scraper rod frame are respectively connected to the connecting plate, and the scraper plate assembly comprises an upper fixed plate, an upper sleeve, a lower scraper plate assembly, a first bolt, a limit bolt and a buffer assembly, the upper fixed plate is fastened to the scraper rod frame, the upper sleeve is welded to the upper fixed plate, the upper end of the lower scraper plate assembly is inserted into the upper sleeve and is hinged to the upper sleeve by the first bolt, the limit bolt is screwed on the rear side of the upper sleeve through a screw pair, and the buffer assembly is inserted into the front side of the upper sleeve and passes through the lower scraper plate assembly.

[0005] Preferably, a plurality of the scraper blade assemblies are evenly arranged along the length direction of the scraper rod frame.

[0006] Preferably, the upper sleeve includes an upper left side plate, an upper right side plate, a rear side plate and a front side plate, the upper ends of the upper left side plate and the upper right side plate are welded to the upper fixed plate, the rear side plate is welded to the upper fixed plate, the upper left side plate and the upper right side plate respectively, and the front side plate is welded to the upper left side plate and the upper right side plate respectively.

[0007] Preferably, the lower scraper blade assembly includes an upper horizontal plate, a left arc plate, a right arc plate and a scraper blade, the upper ends of the left arc plate and the right arc plate are welded to the upper horizontal plate, the lower ends of the left arc plate and the right arc plate are welded to the scraper blade, and the upper horizontal plate is tightened by a limiting bolt screwed in from the rear side plate.

[0008] Preferably, the buffer assembly includes a second bolt, a first gasket, a compression spring, a second gasket and a locking nut. The second bolt first passes through the front side plate, then passes between the left arc plate and the right arc plate, and then passes through the first gasket, the compression spring and the second gasket in sequence, and then is locked by the locking nut, so that the compression spring generates a compressed elastic restoring force.

[0009] The beneficial effects of adopting the above technical solution are:

[0010] 1. The utility model discloses a rotary tiller with an adjustable scraper plate on the pressing wheel. When the rotary tiller is working, the gap between the scraper plate and the pressing wheel is adjusted according to the thickness and shape of the soil adhering to the pressing wheel. The specific adjustment process is as follows: by tightening the limit bolt, the rotation angle of the lower scraper plate assembly around the upper sleeve is adjusted to achieve the gap adjustment between the scraper plate and the pressing wheel, thereby improving the scraping efficiency and ability of the scraper plate, ensuring the cleanliness and flatness of the pressing wheel surface, and ensuring the quality of soil compaction as well as the emergence rate, uniform seedling time and moisture retention of seeds.

[0011] 2. The buffer assembly includes a second bolt, a first gasket, a compression spring, a second gasket and a locking nut. The second bolt first passes through the front side plate, then passes between the left arc plate and the right arc plate, and then passes through the first gasket, the compression spring and the second gasket in sequence, and then is locked by the locking nut, so that the compression spring generates a compressed elastic restoring force.

[0012] The existing rigid scraper cannot be adjusted at will after being fixed and installed. When the pressing wheel adheres to the mud and causes the surface to be elliptical, the rigid scraper cannot fully contact the pressing wheel, thereby failing to scrape off the clay on the pressing wheel. The scraper of the present application realizes flexible installation of the scraper by swinging the compression spring of the lower scraper assembly, and can adapt to soils with different water contents. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an assembly diagram of the rotary tiller with an adjustable scraper plate and a rotary tiller of the utility model;

[0014] Figure 2 It is an axonometric view of the scraper assembly;

[0015] in:

[0016] 1. Connecting plate; 2. Mud scraper rod frame; 3. Mud scraper assembly;

[0017] 3-1, upper fixing plate; 3-2, upper sleeve; 3-3, lower scraper assembly; 3-4, first bolt; 3-5, limit bolt; 3-6, buffer assembly;

[0018] 3-20, upper left side panel; 3-21, upper right side panel; 3-22, rear side panel; 3-23, front side panel;

[0019] 3-30, upper horizontal plate; 3-31, left arc plate; 3-32, right arc plate; 3-33, mud scraper;

[0020] 3-60, second bolt; 3-61, first gasket; 3-62, compression spring; 3-63, second gasket; 3-64, locking nut. DETAILED DESCRIPTION

[0021] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in the field to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model and facilitating its implementation.

[0022] like Figure 1 to Figure 2 As shown, the utility model is a rotary tiller with an adjustable scraper plate on the pressing wheel, which can adjust the gap between the scraper plate and the pressing wheel, improve the scraping efficiency and ability of the scraper plate, ensure the cleanliness and flatness of the pressing wheel surface, ensure the quality of soil compaction and the seed germination rate, uniform seedling time and moisture retention; and can adapt to soils with different water contents.

[0023] Specifically, Figure 1 to Figure 2 As shown, it includes a connecting plate 1, a scraper rod frame 2 and a scraper blade assembly 3, wherein two connecting plates 1 are symmetrically provided and are respectively connected to the rear end frame of the rotary tiller, and both ends of the scraper rod frame 2 are respectively connected to the connecting plate 1, and the scraper blade assembly 3 includes an upper fixed plate 3-1, an upper sleeve 3-2, a lower scraper blade 3-33 component 3-3, a first bolt 3-4, a limit bolt 3-5 and a buffer component 3-6, wherein the upper fixed plate 3-1 is fastened to the scraper rod frame 2, the upper sleeve 3-2 is welded to the upper fixed plate 3-1, the upper end of the lower scraper blade 3-33 component 3-3 is inserted into the upper sleeve 3-2, and is hinged to the upper sleeve 3-2 by the first bolt 3-4, the limit bolt 3-5 is screwed on the rear side of the upper sleeve 3-2 by a screw pair, and the buffer component 3-6 is inserted into the front side of the upper sleeve 3-2 and passes through the lower scraper blade 3-33 component 3-3.

[0024] The scraper blade assembly 3 is evenly arranged in plurality along the length direction of the scraper rod frame 2 .

[0025] The upper sleeve 3-2 includes an upper left side plate 3-20, an upper right side plate 3-21, a rear side plate 3-22 and a front side plate 3-23. The upper ends of the upper left side plate 3-20 and the upper right side plate 3-21 are welded to the upper fixed plate 3-1, the rear side plate 3-22 is welded to the upper fixed plate 3-1, the upper left side plate 3-20 and the upper right side plate 3-21 respectively, and the front side plate 3-23 is welded to the upper left side plate 3-20 and the upper right side plate 3-21 respectively.

[0026] The lower scraper blade 3-33 assembly 3-3 includes an upper horizontal plate 3-30, a left arc plate 3-31, a right arc plate 3-32 and a scraper blade 3-33. The upper ends of the left arc plate 3-31 and the right arc plate 3-32 are welded to the upper horizontal plate 3-30, and the lower ends of the left arc plate 3-31 and the right arc plate 3-32 are welded to the scraper blade 3-33. The upper horizontal plate 3-30 is tightened by a limiting bolt 3-5 screwed in from the rear side plate 3-22.

[0027] The buffer assembly 3-6 includes a second bolt 3-60, a first gasket 3-61, a compression spring 3-62, a second gasket 3-63 and a locking nut 3-64. The second bolt 3-60 first passes through the front side plate 3-23, then passes between the left arc plate 3-31 and the right arc plate 3-32, and then passes through the first gasket 3-61, the compression spring 3-62 and the second gasket 3-63 in sequence, and then is locked by the locking nut 3-64, so that the compression spring 3-62 generates a compressed elastic restoring force.

[0028] The specific working method is described below with specific embodiments:

[0029] Embodiment 1:

[0030] The utility model discloses a rotary tiller with an adjustable scraper plate on the pressing wheel. When the rotary tiller is working, the gap between the scraper plate 3-33 and the pressing wheel is adjusted according to the thickness and shape of the soil adhered to the pressing wheel. The specific adjustment process is as follows: by tightening the limit bolt 3-5, the rotation angle of the lower scraper plate assembly 3-3 around the upper sleeve 3-2 is adjusted to achieve the gap adjustment between the scraper plate 3-33 and the pressing wheel, thereby improving the scraping efficiency and ability of the scraper plate 3-33, ensuring the cleanliness and flatness of the pressing wheel surface, and ensuring the quality of soil compaction as well as the emergence rate, uniform seedling time and moisture retention of seeds.

[0031] Embodiment 2:

[0032] On the basis of Example 1, the buffer assembly 3-6 includes a second bolt 3-60, a first gasket 3-61, a compression spring 3-62, a second gasket 3-63 and a locking nut 3-64. The second bolt 3-60 first passes through the front side plate 3-23, then passes between the left arc plate 3-31 and the right arc plate 3-32, and then passes through the first gasket 3-61, the compression spring 3-62 and the second gasket 3-63 in turn, and then is locked by the locking nut 3-64, so that the compression spring 3-62 generates a compressed elastic restoring force.

[0033] The existing rigid scraper blade cannot be adjusted at will after being fixed and installed. When the pressing wheel adheres to the mud and causes the surface to be elliptical, the rigid scraper blade cannot fully contact the pressing wheel, and thus cannot scrape off the clay on the pressing wheel. The scraper blade 3-33 of the present application realizes the flexible installation of the scraper blade 3-33 through the swing compression spring 3-62 of the lower scraper blade assembly 3-3, and can adapt to soils with different water contents.

[0034] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above-mentioned concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A rotary tiller with an adjustable scraper blade. Features: The invention comprises a connecting plate (1), a scraper rod frame (2) and a scraper blade assembly (3), wherein two connecting plates (1) are symmetrically provided and are respectively connected to the rear end frame of the rotary tiller, and both ends of the scraper rod frame (2) are respectively connected to the connecting plate (1). The scraper blade assembly (3) comprises an upper fixing plate (3-1), an upper sleeve seat (3-2), a lower scraper blade (3-33) assembly (3-3), a first bolt (3-4), a limit bolt (3-5) and a buffer assembly (3-6), wherein the upper fixing plate (3-1) The upper sleeve (3-2) is welded to the upper fixing plate (3-1); the upper end of the lower scraper blade (3-33) assembly (3-3) is inserted into the upper sleeve (3-2) and is hinged to the upper sleeve (3-2) via a first bolt (3-4); the limit bolt (3-5) is screwed to the rear side of the upper sleeve (3-2) via a screw pair; the buffer assembly (3-6) is inserted into the front side of the upper sleeve (3-2) and passes through the lower scraper blade (3-33) assembly (3-3).

2. The adjustable scraper blade of the rotary tiller pressing wheel according to claim 1, Features: A plurality of the scraper blade assemblies (3) are evenly arranged along the length direction of the scraper rod frame (2).

3. The adjustable scraper blade of the rotary tiller pressing wheel according to claim 1, Features: The upper sleeve (3-2) comprises a left upper side plate (3-20), a right upper side plate (3-21), a rear side plate (3-22) and a front side plate (3-23); the upper ends of the left upper side plate (3-20) and the right upper side plate (3-21) are welded to the upper fixed plate (3-1); the rear side plate (3-22) is welded to the upper fixed plate (3-1), the left upper side plate (3-20) and the right upper side plate (3-21) respectively; and the front side plate (3-23) is welded to the left upper side plate (3-20) and the right upper side plate (3-21) respectively.

4. The adjustable scraper blade of the rotary tiller pressing wheel according to claim 3, Features: The lower scraper plate (3-33) assembly (3-3) comprises an upper transverse plate (3-30), a left circular plate (3-31), a right circular plate (3-32) and a scraper plate (3-33); the upper ends of the left circular plate (3-31) and the right circular plate (3-32) are welded to the upper transverse plate (3-30); the lower ends of the left circular plate (3-31) and the right circular plate (3-32) are welded to the scraper plate (3-33); and the upper transverse plate (3-30) is tightened by a limiting bolt (3-5) screwed in from the rear side plate (3-22).

5. The adjustable scraper blade of the rotary tiller pressing wheel according to claim 4, Features: The buffer assembly (3-6) comprises a second bolt (3-60), a first gasket (3-61), a compression spring (3-62), a second gasket (3-63) and a locking nut (3-64); the second bolt (3-60) first passes through the front side plate (3-23), then passes between the left arc plate (3-31) and the right arc plate (3-32), then passes through the first gasket (3-61), the compression spring (3-62) and the second gasket (3-63) in sequence, and then is locked by the locking nut (3-64), so that the compression spring (3-62) generates a compressed elastic restoring force.

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