An adjustable row spacing wheat row marker

Abstract

The utility model relates to agricultural machinery technical field discloses an adjustable row spacing wheat marking device, including the frame, the slide rail post is fixed with the side wall of frame, the support plate of bottom area with sliding wheel is slidably connected on the slide rail post, the back of support plate is fixed with the connecting plate, is equipped with the connecting mechanism of self -defining quantity on the frame, and the mechanism includes fixed subassembly, and fixed subassembly is by vertical sliding slide post, limit ring, reset spring, connecting block and snap pin is composed, is seted up in connecting plate and has the insertion slot, and reset spring drives snap pin to insert the insertion slot to lock the support plate. The utility model still is equipped with the wheel lubricating mechanism, and the abutment through the rolling axle and the wheel axle realizes automatic injection lubrication. The utility model through the mechanical cooperation of slide post, reset spring and snap pin, has realized that the row spacing of sliding wheel can be adjusted fast without tools and the number of increasing and reducing components, utilizes the automatic lubricating mechanism effectively to prevent the axle from rusting and being stuck simultaneously, has improved field operation efficiency and equipment service life significantly.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a wheat row marking device with adjustable row spacing. Background Technology

[0002] In mechanized wheat sowing operations, row marking devices are indispensable auxiliary equipment. Their main function is to imprint clear trajectory lines on the field ground, guide the seeder to keep moving in a straight line and maintain the set row spacing. This is crucial for ensuring ventilation and light penetration during the subsequent growth of wheat and for facilitating later field management.

[0003] However, in actual farming, due to differences in wheat varieties, soil fertility, and agronomic requirements, it is often necessary to adjust the row spacing. In order to ensure the structural stability of existing row marking devices in the bumpy environment of the field, the row marking wheel assembly and the frame are usually fixed by welding or by multiple sets of bolt clamps.

[0004] While this traditional connection structure ensures the strength of the connection, it reveals significant shortcomings when faced with row spacing adjustment requirements. When operators need to change the row spacing or increase or decrease the number of rowing wheels according to the working width, they must use specialized tools such as wrenches to loosen the fastening bolts one by one, move the components, and then tighten them again. This process is not only cumbersome and time-consuming, but also extremely inconvenient to carry and use disassembly and assembly tools when working in the field outdoors. Once the bolts rust and become stuck, the adjustment work becomes extremely difficult, seriously reducing the efficiency of sowing operations and the versatility of the equipment.

[0005] Therefore, this utility model proposes an adjustable row spacing wheat row marking device to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides an adjustable row spacing wheat rowing device, which aims to improve the problem that some existing wheat rowing devices are usually connected to the frame by bolts or welding, resulting in cumbersome operation when adjusting the row spacing or increasing or decreasing the number of rowing wheels.

[0007] This utility model provides an adjustable row spacing wheat marking device, comprising: a frame, a slide rail column fixedly connected to the side wall of the frame, a support plate slidably connected to the outer wall of the slide rail column, a sliding wheel rotatably connected to the bottom of the support plate, a push rod fixedly connected to the side wall of the support plate, a connecting plate fixedly connected to the back of the support plate, and a customizable number connection mechanism provided on the frame.

[0008] The custom quantity connection mechanism includes a fixing component, which includes a slide column that is slidably connected to the frame in a vertical direction. The outer wall of the slide column is fixedly connected to a limit ring and a reset spring. The bottom end of the slide column is fixedly connected to a connecting block, and the end of the connecting block away from the slide column is fixedly connected to a locking pin.

[0009] Furthermore, the connecting plate has a slot for inserting the locking pin inside. The two ends of the return spring abut against the limiting ring and the fixing part on the frame, respectively. When the limiting ring slides upward with the sliding column, it is squeezed and generates a rebound thrust to drive the locking pin back into the connecting plate. Thus, the position of the support plate is locked through the cooperation between the fixing component and the connecting plate.

[0010] Preferably, the push rod is configured to drive the sliding wheel to slide along the slide rail post, and the fixing component is configured to lock the relative position of the support plate and the frame, thereby realizing the adjustment and fixing of the row spacing.

[0011] Preferably, the bottom of the support plate is connected to a wheel lubrication mechanism, which includes a support leg fixedly connected to the bottom of the support plate. The support leg has a cavity for storing lubricating oil. The sliding wheel is rotatably connected to the lower end of the support leg via an axle. A roller is rotatably connected inside the support leg. The outer wall of the roller abuts against the outer wall of the axle. The roller is used to apply the lubricating oil in the cavity to the outer wall of the axle to prevent the axle from rusting and jamming.

[0012] Preferably, the side wall of the support leg is fixedly connected to an injection pipe that communicates with the cavity. The inner wall of the injection pipe is fixedly connected to a sealing outer ring. An inner plug is movably inserted into the inside of the injection pipe. The outer wall of the inner plug is tightly fitted with the inner wall of the sealing outer ring to form a seal and prevent lubricating oil from leaking out.

[0013] Preferably, a fixing block is fixedly connected inside the injection tube and behind the sealing outer ring. A sliding post is slidably inserted through the middle of the fixing block. One end of the sliding post is fixedly connected to the inner plug. The stability of the movement of the inner plug is ensured by the guiding effect of the sliding post.

[0014] Preferably, a push spring is sleeved on the outer wall of the sliding column. One end of the push spring abuts against the end face of the inner plug, and the other end of the push spring abuts against the end face of the fixing block. The push spring is used to provide elastic force to push the inner plug towards the sealing outer ring to maintain the sealing state under normal conditions.

[0015] Preferably, the inner plug is configured to compress the push spring and drive the sliding column to slide inside the fixed block when pushed inward by an external force, so that the inner plug separates from the sealing outer ring to open the oil injection channel and realize the injection of lubricating oil.

[0016] Preferably, there are multiple rollers, which are evenly distributed around the circumference of the axle inside the support leg to ensure that the lubricating oil can be more evenly coated on the surface of the axle.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problems of cumbersome row spacing adjustment, the need for tools to disassemble and assemble, and the difficulty in flexibly increasing or decreasing the number of rowing components in existing wheat rowing devices by setting a custom number of connecting mechanisms and fixing components on the frame, and by using a sliding column to drive the limiting ring to squeeze the reset spring and pull the locking pin to move. It achieves the effect of quickly unlocking and moving the support plate to adjust the row spacing without auxiliary tools, and automatically resetting and locking by spring force when released, which greatly improves the adjustment efficiency of field operations and the flexibility of equipment configuration. 2. This utility model, by setting up a wheel lubrication mechanism, opens an oil storage cavity inside the support leg and sets up a roller that abuts against the outer wall of the wheel axle, solves the problem that the wheel axle of the existing device is prone to rusting and locking up due to long-term exposure to the harsh agricultural environment of dust and mud, resulting in poor rotation or even jamming and damage. It achieves the effect of using the rotation of the wheel axle to drive the roller to rotate synchronously, thereby automatically and evenly applying lubricating oil to the surface of the wheel axle, realizing continuous contact automatic lubrication, effectively isolating dust and moisture, and significantly extending the service life of the equipment; 3. This utility model solves the problem of poor sealing of traditional oil filling ports, which easily leads to leakage of lubricating oil or blockage of oil passages by setting a press-type automatic sealing structure consisting of an inner plug, a sealing outer ring, a sliding column and a push spring inside the injection pipe. It achieves the effect of opening the oil filling channel by pressing inward and automatically resetting the inner plug and tightly fitting the sealing outer ring by the spring rebound force after releasing the force, making the oil filling operation convenient and hygienic, while ensuring the airtightness of the oil storage environment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of an adjustable row spacing wheat marking device proposed in this utility model; Figure 2 This is a schematic diagram of the frame structure of a wheat rowing device with adjustable row spacing proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0019] Legend: 1. Frame; 2. Skating wheels; 3. Customizable quantity connection mechanism; 31. Support plate; 32. Slide rail column; 33. Push rod; 34. Connecting plate; 35. Fixing component; 351. Sliding column; 352. Return spring; 353. Limiting ring; 354. Connecting block; 355. Locking pin; 4. Wheel lubrication mechanism; 41. Support leg; 42. Sealing outer ring; 43. Roller; 44. Wheel axle; 45. Injection pipe; 46. Fixing block; 47. Push spring; 48. Sliding column; 49. Inner plug. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: See Figures 1 to 4 This utility model provides an adjustable row spacing wheat rowing device, which aims to solve the structural defects of existing wheat rowing devices, such as cumbersome row spacing adjustment, inability to flexibly increase or decrease the number of rowing components, and wheel axles being prone to rusting and locking due to lack of lubrication.

[0022] like Figure 1 and Figure 2 As shown, the device includes a frame 1 and a sliding wheel 2 assembly that is slidably connected to the side wall of the frame 1. The frame 1 serves as the mounting base for the entire device, supporting the components and connecting the traction power. The sliding wheel 2 assembly is used to roll on the field surface to leave work tracks.

[0023] The side wall of the frame 1 is fixedly connected by welding or bolts to a slide rail column 32 that extends horizontally along the length of the frame 1. A support plate 31 is slidably connected to the outer wall of the slide rail column 32. The support plate 31, as a moving carrier, can reciprocate along the axis of the slide rail column 32. A sliding wheel 2 is rotatably connected to the bottom of the support plate 31. A push rod 33 is fixedly connected to the side wall of the support plate 31. The push rod 33 is used for the user to apply force to drive the support plate 31 and the sliding wheel 2 to slide on the slide rail column 32 to adjust the row spacing. A connecting plate 34 is fixedly connected to the back of the support plate 31. The connecting plate 34 fits into the mounting slot of the frame 1 and moves synchronously with the support plate 31.

[0024] The frame 1 is provided with a custom quantity connection mechanism 3. The custom quantity connection mechanism 3 includes the aforementioned connection plate 34 and a fixing component 35 installed on the side wall of the frame 1. The fixing component 35 includes a sliding column 351 that is slidably connected to the side wall of the frame 1 in a vertical direction. The sliding column 351 passes through a guide protrusion or guide hole provided on the frame 1 to maintain a vertical movement trajectory. The upper end of the sliding column 351 extends out as an operating handle. A limit ring 353 is fixedly connected to the outer wall of the sliding column 351. A return spring 352 is sleeved on the outer wall of the sliding column 351 and below the limit ring 353.

[0025] The two ends of the return spring 352 abut against the lower surface of the limiting ring 353 and the upper surface of the fixing part on the frame 1, respectively. The fixing part is a protruding stepped surface or bracket structure on the frame 1. The return spring 352 is normally compressed or pre-tightened to provide a continuous downward rebound force. The bottom end of the slide column 351 is fixedly connected to the connecting block 354, and the end of the connecting block 354 away from the slide column 351 is fixedly connected to the locking pin 355. Correspondingly, the interior of the connecting plate 34 has a slot for the locking pin 355 to be inserted. Under the action of the return spring 352, the locking pin 355 is inserted into the interior of the connecting plate 34 to mechanically lock the relative position of the connecting plate 34 and the frame 1. It also includes a wheel lubrication mechanism 4. The wheel lubrication mechanism 4 forms a specific lubrication fit structure with the aforementioned support plate 31 and sliding wheel 2. Please refer to the following for details. Figure 2 and Figure 4 .

[0026] The wheel lubrication mechanism 4 includes a support leg 41 fixedly connected to the bottom of the support plate 31. The support leg 41 has a hollow structure with a cavity for storing lubricating oil inside. The support leg 41 not only serves as a mounting bracket for the sliding wheel 2, but also functions as an oil tank. The sliding wheel 2 is rotatably connected to the lower end of the support leg 41 via an axle 44. The axle 44 horizontally passes through the lower part of the support leg 41 and is supported by bearings or other rotating fittings. The middle section of the axle 44 is located inside the support leg 41.

[0027] Inside the support leg 41, there are multiple rollers 43 rotatably connected. These rollers 43 are evenly distributed around the axle 44 and are arranged around the axle 44. The inner wall of the support leg 41 has rotating grooves that are adapted to the two ends of the rollers 43 for the rollers 43 to be rotatably installed. The outer wall of the rollers 43 and the outer wall of the axle 44 are always in contact. When the sliding wheel 2 moves forward with the frame 1 and drives the axle 44 to rotate, the axle 44 drives the contacting rollers 43 to rotate synchronously through friction.

[0028] During rotation, the roller 43 continuously picks up the lubricating oil stored in the cavity and applies it evenly and continuously to the outer wall surface of the axle 44 through rotational contact. This contact-type roller coating structure ensures that the axle 44 is always in a good oil film lubrication state during operation, effectively isolating the axle 44 from external dust and moisture corrosion, and preventing rust and jamming.

[0029] The side wall of the support leg 41 is fixedly connected to an injection tube 45 that connects to the cavity. The injection tube 45 is cylindrical and extends outward. A sealing outer ring 42 is fixedly connected to the inner wall of the injection tube 45. The sealing outer ring 42 is made of annular rubber or oil-resistant sealing material. An inner plug 49 is movably inserted into the inside of the injection tube 45. The inner plug 49 is cylindrical or stepped. The outer wall of the inner plug 49 and the inner wall of the sealing outer ring 42 are tightly fitted under normal conditions to form the first line of sealing to prevent lubricating oil leakage and external impurities from entering.

[0030] A fixing block 46 is fixedly connected inside the injection tube 45 and behind the sealing outer ring 42. The fixing block 46 is fixed to the inner wall of the injection tube 45 by interference fit or bonding as an internal support. A through hole is opened in the middle of the fixing block 46, and a sliding post 48 is slidably inserted in the through hole. One end of the sliding post 48 is fixedly connected to the center of the inner plug 49, and the other end of the sliding post 48 extends to the rear of the fixing block 46. A push spring 47 is sleeved on the outer wall of the sliding post 48. One end of the push spring 47 abuts against the side end face of the inner plug 49 near the fixing block 46, and the other end of the push spring 47 abuts against the side end face of the fixing block 46 near the inner plug 49.

[0031] The push spring 47 is in a compressed state under normal conditions, providing a continuous elastic force to push the inner plug 49 outward toward the sealing outer ring 42, thereby maintaining the automatic closure and sealing of the oil inlet. When lubricating oil needs to be added, the operator uses the oil can spout or other tools to push the inner plug 49 inward. The inner plug 49 moves inward under force and further squeezes the push spring 47, while driving the sliding column 48 to slide backward inside the fixed block 46. When the inner plug 49 separates from the sealing outer ring 42 and a gap is created, the oil inlet channel opens, and the lubricating oil can be injected into the cavity of the support leg 41 through the gap. After the oil is injected, the inner plug 49 is released. Under the action of the rebound force of the push spring 47, the inner plug 49 quickly resets and re-fits the sealing outer ring 42, realizing the automatic closure of the oil inlet.

[0032] The return spring 352 in the fixing assembly 35 is not directly exposed, but is set in the protective area formed between the outer wall of the slide column 351 and the side wall of the frame 1, or a protective shell for accommodating the return spring 352 is fixedly connected to the side wall of the frame 1 to prevent weeds in the field from getting tangled or mud from blocking the spring's extension and contraction. The inner wall of the slot inside the connecting plate 34 for the insertion of the locking pin 355 can be lined with a wear-resistant sleeve. The end of the locking pin 355 can be chamfered into a conical or spherical shape to facilitate smoother insertion into the slot during reset and reduce jamming.

[0033] The number of rollers 43 inside the support leg 41 is set to three or four, and they are evenly distributed along the circumference of the axle 44. The surface of the rollers 43 may be provided with a knurled texture or an oil-absorbing sponge layer to increase their ability to carry lubricating oil and the frictional adhesion between them and the axle 44, ensuring that the rollers 43 can rotate reliably with the axle 44. An oil seal ring is provided at the lower end of the support leg 41, at the hole through which the axle 44 passes. The oil seal ring is tightly fitted onto the axle 44 and embedded in the housing wall of the support leg 41, and is in contact with the inner... The cavity of the part forms a sealed fit, which, together with the sealing structure at the injection pipe 45, makes the inside of the support leg 41 a relatively closed oil storage environment. The side wall mounting surface of the frame 1 is machined into a flat surface, and the slide rail column 32 set on the frame 1 adopts a guide rail structure with a rectangular or dovetail cross section. Correspondingly, the support plate 31 or the connecting plate 34 is provided with a sliding groove that matches the cross section shape of the slide rail column 32. The shape fit restricts the rotation of the support plate 31, and only retains the degree of freedom of movement along the axial direction of the slide rail column 32.

[0034] The working principle of this utility model is as follows: When the user needs to adjust the spacing of the sliding wheels 2 or increase or decrease the number of sliding wheel 2 components, first manually pull the sliding column 351 upwards. The vertical movement of the sliding column 351 will cause the limiting ring 353 and the connecting block 354 fixed on it to slide upwards synchronously.

[0035] During this process, the upward movement of the limiting ring 353 will compress the return spring 352, causing the return spring 352 to contract under pressure and accumulate rebound force. At the same time, the connecting block 354 drives the locking pin 355 at its bottom to move upward, so that the locking pin 355 is completely disengaged from the slot of the connecting plate 34, thereby releasing the position lock of the connecting plate 34 and the support plate 31.

[0036] After unlocking, the user can apply force through the push rod 33 to drive the support plate 31 and the sliding wheel 2 below to slide along the slide rail column 32 on the side wall of the frame 1 until it moves to the expected row spacing position. If additional components are needed, the connecting plate 34 behind the new support plate 31 is aligned with the mounting position on the frame 1 and fitted.

[0037] Once the position is determined, the user releases the sliding column 351. Under the elastic restoring force accumulated by the return spring 352, the limiting ring 353 is pushed downward, which in turn drives the sliding column 351, connecting block 354 and locking pin 355 to quickly return downward. The locking pin 355 is reinserted into the slot of the connecting plate 34, which securely locks the connecting plate 34 onto the frame 1, completing the row spacing adjustment or component installation. Through the cooperation of the custom quantity connecting mechanism 3 and the fixing component 35, the function of flexibly configuring the sliding wheels 2 and adjusting the spacing according to the operation requirements is realized.

[0038] When the adjustable row spacing wheat lining device is used in the field, the sliding wheel 2 rolls forward on the ground, driving the wheel axle 44 to rotate at the bottom of the support leg 41. The rotation of the wheel axle 44 drives the roller 43 inside the support leg 41 to rotate synchronously through friction. During the rotation, the roller 43 continuously and evenly coats the lubricating oil stored in the cavity inside the support leg 41 onto the outer surface of the wheel axle 44, forming a continuous oil film protective layer to prevent the wheel axle 44 from rusting or locking due to lack of oil.

[0039] When the lubricating oil in the support leg 41 is consumed and needs to be replenished, the user uses an oiling tool to press the inner plug 49 inward. The inner plug 49 moves inward under force, squeezing the push spring 47 and causing the sliding column 48 to slide backward in the fixed block 46. When the inner plug 49 separates from the sealing outer ring 42 fixed on the inner wall of the injection pipe 45, the oil injection channel is opened, and the lubricating oil is injected into the cavity of the support leg 41 through this channel. After the oil injection is completed, the external force is removed, and the inner plug 49 automatically resets under the rebound force of the push spring 47 and sticks tightly to the sealing outer ring 42, resealing the oil injection port. The wheel lubrication mechanism 4 ensures the long-term stable operation of the device.

Claims

1. An adjustable row spacing wheat rowing device, comprising a frame (1), wherein a slide rail column (32) is fixedly connected to the side wall of the frame (1). The outer wall of the slide rail column (32) is slidably connected to a support plate (31), and the bottom of the support plate (31) is rotatably connected to a sliding wheel (2). A push rod (33) is fixedly connected to the side wall of the support plate (31), and a connecting plate (34) is fixedly connected to the back of the support plate (31). Its features are, The frame (1) is provided with a custom quantity connection mechanism (3), which includes a fixing component (35). The fixing component (35) includes a slide column (351) that is slidably connected to the frame (1) in the vertical direction. The outer wall of the slide column (351) is fixedly connected to a limit ring (353) and a return spring (352) is sleeved on it. A connecting block (354) is fixedly connected to the bottom end of the sliding column (351), and a locking pin (355) is fixedly connected to the end of the connecting block (354) away from the sliding column (351). The connecting plate (34) has a slot inside for inserting the locking pin (355); The two ends of the return spring (352) abut against the limiting ring (353) and the fixing part on the frame (1), respectively, so as to be squeezed and generate a rebound thrust when the limiting ring (353) slides upward with the sliding column (351), so as to drive the locking pin (355) to insert back into the connecting plate (34).

2. The wheat row marking device with adjustable row spacing according to claim 1, characterized in that, The push rod (33) is used to drive the sliding wheel (2) to slide along the slide rail column (32), and the fixing component (35) is used to lock the relative position of the support plate (31) and the frame (1).

3. The wheat row marking device with adjustable row spacing according to claim 1, characterized in that, The bottom of the support plate (31) is connected to a wheel lubrication mechanism (4), which includes a support leg (41) fixedly connected to the bottom of the support plate (31). The support leg (41) has a cavity for storing lubricating oil inside, and the sliding wheel (2) is rotatably connected to the lower end of the support leg (41) via a wheel axle (44); The support leg (41) is rotatably connected to a roller (43), the outer wall of the roller (43) abuts against the outer wall of the axle (44), and the roller (43) is used to apply the lubricating oil in the cavity to the outer wall of the axle (44).

4. The wheat row marking device with adjustable row spacing according to claim 3, characterized in that, The side wall of the support leg (41) is fixedly connected to an injection tube (45) that communicates with the interior of the cavity. The inner wall of the injection tube (45) is fixedly connected with a sealing outer ring (42), and an inner plug (49) is movably inserted into the inside of the injection tube (45). The outer wall of the inner plug (49) fits tightly against the inner wall of the sealing outer ring (42) to form a seal.

5. The wheat row marking device with adjustable row spacing according to claim 4, characterized in that, A fixing block (46) is fixedly connected inside the injection tube (45) and behind the sealing outer ring (42). A sliding post (48) is slidably inserted through the middle of the fixed block (46), and one end of the sliding post (48) is fixedly connected to the inner plug (49).

6. The wheat row marking device with adjustable row spacing according to claim 5, characterized in that, The outer wall of the sliding column (48) is fitted with a push spring (47); One end of the push spring (47) abuts against the end face of the inner plug (49), and the other end of the push spring (47) abuts against the end face of the fixing block (46). The push spring (47) is used to provide an elastic force to push the inner plug (49) towards the sealing outer ring (42).

7. The wheat row marking device with adjustable row spacing according to claim 6, characterized in that, When the inner plug (49) is pushed inward by an external force, it squeezes the push spring (47) and drives the sliding column (48) to slide inside the fixed block (46), so that the inner plug (49) separates from the sealing outer ring (42) to open the oil injection channel.

8. The wheat row marking device with adjustable row spacing according to claim 3, characterized in that, The number of rollers (43) is multiple, and the multiple rollers (43) are evenly distributed in the circumference of the wheel axle (44) inside the support leg (41).

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