Tilling depth adjusting device of agricultural implement and application

Abstract

The tilling depth adjusting device comprises an upper clamping seat, a lower clamping seat, an adjusting rod and a positioning sleeve, the upper clamping seat and the lower clamping seat are connected through a bolt, upper swing pieces are arranged in two supporting arms on the side, facing a land wheel, of the upper clamping seat, the side, facing the land wheel, of the lower clamping seat is connected with land wheel supporting arms through pin shafts, pin seats are installed on the land wheel supporting arms, and the adjusting rod is connected with the pin seats through pin shafts. The positioning sleeve is sleeved on the adjusting rod, a plurality of positioning holes are formed in the adjusting rod, the pin penetrates through the hole in the positioning sleeve and the positioning hole in the adjusting rod to position the positioning sleeve on the adjusting rod, the upper part of the adjusting rod penetrates through the swinging piece, the upper end of the adjusting rod is provided with a limiting stop block, and the lower end of the adjusting rod is fixedly provided with a sleeve; and the pin shaft penetrates through the sleeve and is connected with the pin seat on the depth roller support arm. When the rotary tillage depth needs to be adjusted, the height of the land wheel can be adjusted only by moving the positioning sleeve upwards or downwards. And the rotary tillage depth can be adjusted simply and conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a tillage depth adjustment device for agricultural machinery and its application. Background Art

[0002] In the production process of grain crops, in addition to being affected by arable land quality, climatic factors, variety selection, etc., soil management has a significant impact on grain crop yields. Due to mechanical compaction, the bulk density of arable land is too high, making it impossible to guarantee the quality of sowing and fertilization, affecting crop growth and thus grain yield. Therefore, before sowing, the land needs to be cultivated and prepared, such as rotary tillage, deep loosening, and inter-tillage, to improve soil structure and create good environmental conditions for sowing and crop growth.

[0003] Different soil types, topography, soil moisture content, crop types, etc. will have different requirements for tillage depth, so the tillage depth of the relevant machines used needs to be adjusted before tillage to achieve the best operation effect. Under normal conditions, the tillage depth of tillage machinery is mostly controlled by the ground wheel (depth limiting wheel), that is, the tillage depth is changed by changing the height position of the ground wheel.

[0004] At present, there are three methods for adjusting the tillage depth: ① Hydraulic cylinder adjustment, such as Figure 8 , 9 As shown, the hydraulic cylinder adjustment structure 10, the tillage depth adjustment structure thereof includes an upper connecting seat 100 and a lower connecting seat 200, the upper connecting seat 100 and the lower connecting seat 200 are fixed on the main beam 300, the lower connecting seat is rotatably connected to the ground wheel support arm 400, and a hydraulic cylinder 500 is installed between the upper connecting seat and the ground wheel support arm. Although this adjustment method is simple to operate, it has many disadvantages. First, it occupies the tractor hydraulic output resources; second, the configured cylinder, pipeline, synchronous valve and other structures are complex and costly; third, it is difficult to control the accurate tillage depth; ② Screw adjustment, such as Fig.10 , 11 As shown, the screw adjustment structure 20, the tillage depth adjustment structure thereof includes an upper connecting seat 100 and a lower connecting seat 200, the upper connecting seat and the lower connecting seat are fixed on the main beam 300, the lower connecting seat is rotatably connected to the ground wheel support arm 400, a screw rod 600 is installed between the upper connecting seat and the ground wheel support arm, and the ground wheel height is limited by adjusting the screw nut. This adjustment method has no advantages, and its disadvantages are: first, it is time-consuming and laborious to twist the screw nut during adjustment; second, the structure is complex, the processing requirements are high, and the cost is high; third, the screw is exposed and easy to rust and get stuck in the soil surface and cannot be used; ③ Adjustment hole adjustment, such as Fig.12 , 13As shown, the adjusting hole adjusting structure 30 is the most primitive adjusting method. Its tillage depth adjusting structure includes an upper connecting seat 100 and an adjusting hole plate 700. The upper connecting seat is fixed on the main beam 300 and has an adjusting fixing hole 800. The adjusting hole plate is fixed on the ground wheel support arm 400. A plurality of adjusting holes are opened on the adjusting hole plate. The tillage depth is adjusted by changing the relative position of the adjusting hole and the positioning hole. The disadvantage is that the adjustment is time-consuming and laborious, and generally requires two people to operate. In order to solve the defects of the above tillage depth adjustment method in the prior art, we invented a new tillage depth adjustment device to overcome the disadvantages of the above tillage depth adjustment method. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a tillage depth adjustment device for agricultural machinery and its application. The tillage depth adjustment device has a simple structure, low cost, easy operation, and saves time and effort.

[0006] In order to achieve the above object, the technical solution of the present invention is:

[0007] A tillage depth adjustment device for an agricultural implement comprises an upper clamping seat, a lower clamping seat, an adjustment rod and a positioning sleeve, wherein the upper clamping seat and the lower clamping seat are connected by bolts, and an upper swinging piece is arranged in two support arms on the side of the upper clamping seat facing the ground wheel, and the upper swinging piece can rotate relative to the two support arms of the upper clamping seat, and the side of the lower clamping seat facing the ground wheel is connected to the ground wheel support arm through a pin shaft, and a pin seat is arranged on the ground wheel support arm, and the upper part of the adjusting rod passes through the upper swinging piece, and a limit stopper is arranged on the upper end of the adjusting rod, and a sleeve is fixed to the lower end of the adjusting rod, and the two ends of the pin shaft are connected with the pin seats on the ground wheel support arm after passing through the sleeve, and the positioning sleeve is sleeved on the adjusting rod, and a positioning hole is opened on the adjusting rod, and a pin passes through the hole on the positioning sleeve and the positioning hole on the adjusting rod to position the positioning sleeve on the adjusting rod.

[0008] Beneficial effects of the present invention:

[0009] 1. The tillage depth adjustment device of the present application solves the problem that the hydraulic cylinder for adjusting the tillage depth has a complex structure, high cost and cannot be accurately positioned; solves the problem that the screw for adjusting the tillage depth is difficult to operate, inefficient and costly; and solves the problem that the adjustment hole for adjusting the tillage depth is time-consuming and laborious and requires the cooperation of two people.

[0010] 2. When the tillage depth adjustment device of the present application needs to adjust the tillage depth, it only needs to move the positioning sleeve upward or downward, and then position the positioning sleeve and the adjustment rod through the pin, which is simple, labor-saving and convenient to operate. The adjacent positioning holes on the adjustment rod are designed to have a standard spacing, so that the accuracy of adjusting the tillage depth by moving the positioning sleeve up and down is higher.

[0011] 3. The tillage depth adjustment device of the present application can quickly adjust the tillage depth, and the adjusted tillage depth has a higher accuracy, which can reach 0.5cm, saving time and effort, and the adjustment can be completed by one person.

[0012] 4. The tillage depth adjustment device of the present application has a wide range of applications and can be applied to all agricultural machinery with ground wheel depth limits (including rotary tillage depth, deep loosening depth, inter-cultivation depth, ridging depth, etc.). BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the structure of the tillage depth adjustment device of this application.

[0015] Figure 2 This is a schematic diagram of the structure of the tillage depth adjustment device of this application. (Second angle)

[0016] Figure 3 This is a schematic diagram of the structure of the tillage depth adjustment device of this application. (Third angle)

[0017] Figure 4 This is a schematic diagram of the structure of a multifunctional seed drill with a tillage depth adjustment device of the present application. (Adjustable tillage depth of the machine)

[0018] Figure 5 This is a schematic diagram of the structure of a multifunctional seed drill with a tillage depth adjustment device of the present application. (Machinery operation status)

[0019] Figure 6 It is a schematic diagram of the structure of a rotary tiller with a tilling depth adjustment device of the present application.

[0020] Figure 7 It is a schematic diagram of the structure of a deep tillage machine with a tillage depth adjustment device of the present application.

[0021] Figure 8 It is a structural schematic diagram of a hydraulic cylinder adjustment device in the prior art.

[0022] Fig. 9 For Figure 8 Schematic diagram of the structure of agricultural machinery with hydraulic cylinder adjustment device shown.

[0023] Fig.10 It is a structural schematic diagram of a screw adjustment device in the prior art.

[0024] Fig.11 For Fig.10 Schematic diagram of the structure of agricultural machinery with a screw adjustment device shown.

[0025] Fig.12 It is a schematic diagram of the structure of the adjusting hole adjusting device in the prior art.

[0026] Fig.13 For Fig.12 The schematic diagram of the agricultural machinery structure of the adjustment hole adjustment device is shown.

[0027] Reference numerals:

[0028] In the tillage depth adjustment device:

[0029] The tillage depth adjustment device 1; the upper clamping seat 11; the support arm 112; the lower clamping seat 12; the adjustment rod 13; the positioning hole 131; the positioning sleeve 14; the upper swinging member 15; the pin 16; the limit stopper 17; the sleeve 18; the clamping member 19; the ground wheel support arm 2; and the pin seat 21.

[0030] In the embodiment:

[0031] Main beam 3; ground wheel 4; deep tillage component 5; strip tillage component 6; suppression component 7; sowing component 8; rotary tillage component 9.

[0032] In the background technology:

[0033] Hydraulic cylinder adjustment structure 10( Figure 8 , 9 ); Screw adjustment structure 20 ( Fig.10 , 11 ); Adjustment hole adjustment structure 30 ( Fig.12 , 13 ); upper connecting seat 100; lower connecting seat 200; main beam 300; ground wheel support arm 400; hydraulic cylinder 500; screw rod 600; adjustment hole plate 700; adjustment fixing hole 800. DETAILED DESCRIPTION

[0034] The present application discloses a tillage depth adjustment device for agricultural machinery and its application, which can solve the drawbacks of the existing height adjustment structure of the ground wheel (depth limiting wheel), has a simple structure, and is convenient and quick to use.

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that in the description of the present invention, the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0037] The tillage depth adjustment device 1 includes an upper clamping seat 11, a lower clamping seat 12, an adjustment rod 13, and a positioning sleeve 14. The upper clamping seat 11 and the lower clamping seat 12 are connected by bolts. The upper clamping seat 11 has two support arms 112 on the side facing the ground wheel. The two support arms 112 are provided with upper swinging members 15. The lower clamping seat 12 is connected to the ground wheel support arm 2 through a pin shaft on the side facing the ground wheel. The upper clamping seat and the lower clamping seat are clamped and fixed to the two ends of the main beam of the agricultural machinery by bolts. The upper swinging member can rotate relative to the two support arms of the upper clamping seat. The ground wheel support arm 2 is equipped with a pin seat 21, and the pin seat is connected to the lower end of the adjustment rod 13 for relative rotation through a pin shaft. The other end of the ground wheel support arm is connected to the ground wheel, and the connection method between the ground wheel and the ground wheel support arm can adopt the commonly used method in the prior art. The upper part of the adjusting rod 13 passes through the swinging member 15, and a limit stopper 17 is installed on the upper end of the adjusting rod. A sleeve 18 is fixed to the lower end of the adjusting rod, and a pin passes through the sleeve 18. Both ends of the pin are connected to the pin seat 21 on the ground wheel support arm 2, and the sleeve can rotate relative to the pin. The positioning sleeve 14 is sleeved on the adjusting rod 13, and a plurality of positioning holes are opened on the adjusting rod 13. The pin 16 passes through the holes on the positioning sleeve 14 and the positioning holes on the adjusting rod 13 to position the positioning sleeve on the adjusting rod. The positioning sleeve can slide up and down on the adjusting rod, and the adjusting rod can slide up and down relative to the upper swinging member.

[0038] When the tillage depth needs to be adjusted, Figure 4 As shown in the figure, the agricultural implement is raised, the ground wheel leaves the ground, and due to the effect of gravity, the ground wheel pulls the adjustment rod downward, and the limit block at the upper end of the adjustment rod blocks the swing part to prevent the adjustment rod from falling from the middle hole of the swing part. At this time, the positioning sleeve can be moved up and down to adjust the tillage depth. After adjustment, it enters the working state as shown in the figure below. Figure 5 The present application adopts an adjustment rod and a positioning sleeve structure to control the height of the ground wheel (depth-limiting wheel), thereby achieving more accurate adjustment of the tillage depth, preventing problems such as too shallow or too deep tillage depth, meeting different soil conditions and crops, ensuring the quality of subsequent sowing operations, being more conducive to crop growth, and increasing crop yields.

[0039] Preferably, the upper swing member 15 has holes on both sides of the support arm 112 facing the upper clamping seat, and the outer sides of the two support arms of the upper clamping seat 11 are provided with clamping members 19, and a rotating shaft is fixed to the clamping member 19 on the side facing the upper swing member 15, and the rotating shaft passes through the support arm of the upper clamping seat 11 and is inserted into the holes on both sides of the upper swing member and can rotate in the holes. The upper swing member can rotate relative to the rotating shaft.

[0040] Preferably, the positioning sleeve 14 is provided with a plurality of symmetrical holes on its circumference, and the positions of the holes are staggered up and down. The adjusting rod 13 is provided with a plurality of rows of longitudinally arranged positioning holes 131, and two adjacent rows of positioning holes 131 on the adjusting rod 13 are staggered. The spacing between adjacent positioning holes on the adjusting rod can be designed to a specified size, so as to adjust the tillage depth more quickly and accurately. The staggered arrangement between two adjacent rows of holes can improve the strength of the adjusting rod.

[0041] The adjustment process of the tillage depth adjustment device in this application:

[0042] Before the operation of the agricultural machinery, the required tillage depth is adjusted according to different soil types, different soil bulk densities, different terrains, different water contents, different crops, etc. When the tillage depth needs to be adjusted, the agricultural machinery is first raised, the ground wheel (depth-limiting wheel) leaves the ground, and then the adjustment is made.

[0043] When it is necessary to deepen the plowing depth, pull out the pin between the adjusting rod and the positioning sleeve, move the positioning sleeve downward to the required position, and then insert the pin into the holes on the adjusting rod and the positioning sleeve to position the two. At this time, the distance between the positioning sleeve and the limit block at the upper end of the adjusting rod increases, the upward movement of the ground wheel increases, and the distance between the ground wheel and the tillage parts increases. During operation, the tillage parts enter the soil, forcing the ground wheel to lift up until the positioning sleeve is under the swinging part, so that the plowing depth is positioned at a deeper position, thereby achieving the purpose of deep plowing.

[0044] When the tillage depth needs to be shallower, pull out the pin between the adjusting rod and the positioning sleeve, move the positioning sleeve upward to the required position, and then insert the pin into the holes on the adjusting rod and the positioning sleeve to position the two. At this time, the distance between the positioning sleeve and the limit block at the upper end of the adjusting rod is reduced, the upward movement of the ground wheel becomes smaller, and the distance between the ground wheel and the tillage parts becomes smaller. During operation, the tillage parts enter the soil, forcing the ground wheel to come on the stage until the positioning sleeve is under the swinging part, so that the tillage depth is positioned at a shallower position, thereby achieving the purpose of shallow tillage.

[0045] This application is compared with the hydraulic cylinder adjustment, screw adjustment and adjustment hole adjustment methods in the prior art:

[0046]

[0047]

[0048] The tillage depth adjustment device of the present application can be installed on a deep tiller, a rotary tiller, a cultivator, a ridger, a strip tiller, a multifunctional seed drill and other agricultural machinery with a ground wheel depth limiting device.

[0049] Embodiment 1:

[0050] like Figure 4 , 5 As shown, taking the multifunctional seeder as an example, the present invention can be applied to the multifunctional seeder strip. The multifunctional seeder is an agricultural machinery equipment for deep loosening, strip tillage and sowing the soil in the sowing belt. The main steps are: first, loosening the soil in the strip tillage area by a deep loosening component, and then arranging the soil in the sowing belt by a strip tillage component, and applying fertilizer at the same time; third, sowing by the sowing component, which is completed at one time; for different soil types, different soil bulk densities, different terrains, different water contents, and different crops, the deep loosening and strip tillage depths are different, and also need to be frequently adjusted during operation; its structure includes a main beam 3, a ground wheel 4, a deep loosening component 5, a strip tillage component 6, a suppression component 7, a fertilization component, a sowing component 8, etc., and the above-mentioned tillage depth adjustment device 1 is installed at both ends of the main beam for adjusting the ground wheel height, and then adjusting the deep loosening and strip tillage depths. If the crop planted is corn, the deep tillage depth is generally 20 cm, and the strip tillage depth is generally 10 cm. The above device can be used to easily set a reasonable tillage depth. First, the ideal tillage depth can be achieved with simple operation, which greatly reduces labor intensity and improves work efficiency; second, it can effectively reduce the idle consumption of power machinery, save production costs, and improve work efficiency; third, it can loosen the tillage layer, increase soil permeability, improve rainwater storage and utilization, enhance soil vitality, prepare excellent seed beds for sowing, ensure the quality of sowing and fertilization, and create more reasonable conditions for corn growth.

[0051] Embodiment 2:

[0052] like Figure 6 As shown, taking a rotary tiller as an example, the present invention can be applied to a rotary tiller, which is a common agricultural machinery for soil cultivation. It mainly cultivates the soil through a rotary tiller component. The tillage depth is different for different soil types, different soil bulk densities, different terrains, different water contents, and different crops. Frequent adjustment is required during operation. Its structure includes a main beam 3, a ground wheel 4, a rotary tiller component 9, etc. The above-mentioned tillage depth adjustment device 1 is installed at both ends of the main beam to adjust the ground wheel height and then adjust the rotary tillage depth. If the crop planted is corn, the rotary tillage depth is generally 15 cm. The above-mentioned device can be used to easily set a reasonable rotary tillage depth. First, a simple operation can achieve an ideal tillage depth, greatly reducing labor intensity and improving work efficiency; second, it effectively reduces the idle consumption of power machinery and saves production costs; third, the tillage layer is rotary tilled to increase the permeability of the soil, improve rainwater storage and utilization, enhance soil vitality, and create more reasonable conditions for the sowing link to ensure the sowing and fertilization depth and corn growth.

[0053] Embodiment 3:

[0054] like Figure 7 As shown, taking a deep tillage machine as an example, the present invention can be applied to a deep tillage machine. A deep tillage machine is an agricultural machinery equipment for deep tillage and soil preparation. The soil is loosened mainly by a deep tillage component, and then the soil is prepared by a rotary tillage component. The deep tillage depth varies according to different soil types, different soil bulk densities, different terrains, different water contents, and different crops. Frequent adjustments are also required during operation. The structure includes a main beam 3, a ground wheel 4, a deep tillage component 5, a suppression component 7, etc. The above-mentioned tillage depth adjustment device 1 is installed at both ends of the main beam for adjusting the ground wheel height and thus adjusting the deep tillage depth. If the crop planted is corn, the deep plowing depth is generally 25 cm. The above-mentioned device can be used to easily set a reasonable plowing depth. First, the ideal plowing depth can be achieved with simple operation, which greatly reduces labor intensity and improves work efficiency. Second, it can effectively reduce the idle consumption of power machinery and save production costs. Third, it can break the plow bottom layer, loosen the tillage layer, increase soil permeability, improve rainwater storage and utilization, and enhance soil vitality, thus creating more reasonable conditions for ensuring the sowing and fertilization depth and corn growth in the sowing stage.

[0055] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and does not deviate from the technical solution of the present invention, and designs a structure and implementation similar to the technical solution based on the above implementation examples without creativity according to the technical essence of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A tillage depth adjustment device for an agricultural implement, characterized in that: It includes an upper clamping seat, a lower clamping seat, an adjusting rod and a positioning sleeve, the upper clamping seat and the lower clamping seat are connected by bolts, and an upper swinging piece is arranged in the two supporting arms of the upper clamping seat facing the ground wheel side, and the upper swinging piece can rotate relative to the two supporting arms of the upper clamping seat, and the lower clamping seat is connected with the ground wheel supporting arm through a pin shaft on the side facing the ground wheel, and a pin seat is arranged on the ground wheel supporting arm, the upper part of the adjusting rod passes through the upper swinging piece, and a limiting stop block is arranged on the upper end of the adjusting rod, and a sleeve is fixed to the lower end of the adjusting rod, and the two ends of the pin shaft are connected with the pin seats on the depth limiting wheel supporting arm after passing through the sleeve, and the positioning sleeve is sleeved on the adjusting rod, and a positioning hole is opened on the adjusting rod, and the pin passes through the hole on the positioning sleeve and the positioning hole on the adjusting rod to position the positioning sleeve on the adjusting rod.

2. The tillage depth adjustment device for agricultural implements according to claim 1, characterized in that: The upper swinging member is provided with holes on both sides of the support arm facing the upper clamping seat, and clamping members are provided on the outer sides of the two support arms of the upper clamping seat. A rotating shaft is fixed on the clamping member on the side facing the upper swinging member, and the rotating shaft passes through the support arm of the upper clamping seat and is inserted into the holes on both sides of the upper swinging member and can rotate in the holes.

3. The tillage depth adjustment device for agricultural implements according to claim 1, characterized in that: The positioning sleeve is provided with a plurality of holes on its circumference, the adjusting rod is provided with a plurality of rows of longitudinally arranged positioning holes, and two adjacent rows of positioning holes are arranged alternately.

4. A multifunctional seed drill, comprising a main beam, a ground wheel, a deep loosening component, a strip tillage component, a suppression component, a fertilizing component, and a seeding component, characterized in that: A tillage depth adjustment device as described in any one of claims 1-3 is installed at both ends of the main beam.

5. A rotary tiller, comprising a main beam, a ground wheel, and a rotary tiller component, characterized in that: A tillage depth adjustment device as described in any one of claims 1-3 is installed at both ends of the main beam.

6. A deep tillage machine, comprising a main beam, a ground wheel, a deep tillage component, and a suppression component, characterized in that: A tillage depth adjustment device as described in any one of claims 1-3 is installed at both ends of the main beam.

7. An application of a tillage depth adjustment device for an agricultural implement as claimed in any one of claims 1 to 3, characterized in that: The tillage depth adjustment device is used in conjunction with agricultural machinery with tillage function. When deep tillage is required, the pin between the adjusting rod and the positioning sleeve is pulled out, the positioning sleeve is moved downward to the required position, and the pin is inserted into the holes on the adjusting rod and the positioning sleeve to position the two. At this time, the distance between the positioning sleeve and the limit stopper at the upper end of the adjusting rod is increased, thereby achieving the purpose of deep tillage; when shallow tillage is required, the pin between the adjusting rod and the positioning sleeve is pulled out, the positioning sleeve is moved upward to the required position, and the pin is inserted into the holes on the adjusting rod and the positioning sleeve to position the two. At this time, the distance between the positioning sleeve and the limit stopper at the upper end of the adjusting rod is reduced, thereby achieving the purpose of shallow tillage; by moving the positioning sleeve upward or downward, the tillage depth can be adjusted accurately and quickly to increase corn yield.

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