Wheel disc type scraper structure and harvester
The disc-type scraper structure solves the problem of jamming and wear of the guide support wheel caused by mud and vine stems, achieving a highly efficient cleaning function, reducing the frequency of manual cleaning, and improving the operating efficiency of the tomato harvester.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LOVOL HEAVY IND CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-21
AI Technical Summary
During tomato harvesting, the conveyor belt gets stuck, deviates, and wears out due to mud and vine stems getting tangled in the guide support wheels. Existing technology requires frequent manual cleaning, which affects operational efficiency and the lifespan of parts.
Design a disc-type scraper structure, including a scraper disc welded together and a scraper. The scraper disc is coaxially arranged with a guide support wheel, and there is an acute angle structure between the scraper and the guide support wheel. The scraper squeezes and removes soil and seedling stems, reducing clogging and entanglement.
It effectively removes mud and rice stalks from the guide support wheels, reduces the frequency of manual cleaning, improves the operating efficiency of the harvester and the life of its parts, and reduces wear.
Smart Images

Figure CN224139617U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of harvester cleaning equipment, and in particular to a disc scraper structure and a harvester. Background Technology
[0002] As the planting area of industrial tomatoes expands year by year, the demand for and adoption rate of self-propelled tomato harvesting machinery are increasing. During the tomato harvesting process, the conveyor belt, as the main conveying component, is subject to soil and vine stems adhering to and entangled on the surface / side of the guide support wheels, causing the support wheels to jam and the conveyor belt to skew, slip, and experience abnormal wear, affecting the overall efficiency of the tomato harvesting operation and the service life of some components.
[0003] The current main solution is to manually clean the machine after each day's work is completed or after the machine has accumulated jams. Tomato harvesting is a high-intensity operation, with a working time of ≥20 hours per day, requiring cleaning 2-3 times, which is time-consuming, labor-intensive, and affects the efficiency of tomato harvesting. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a disc scraper structure and a harvester to address the shortcomings of the existing technology.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A disc-type scraper structure includes: a frame, a guide support wheel, a scraper disc welded together, and a scraper. The guide support wheel is rotatably mounted on the frame, the scraper disc welded together is mounted on the frame, the scraper disc welded together is arranged around the periphery of the guide support wheel, and the scraper is mounted on the scraper disc welded together.
[0006] The beneficial effects of adopting this utility model's technical solution are: the soil and vine stems attached to and entangled on the guide support wheel surface are squeezed and removed by the scraper. This improves the problem of the guide support wheel getting stuck due to soil and vine stems during operation, as well as the resulting conveyor belt skewing, slippage, and wear. Through low-cost structural optimization, the frequency and intensity of manual cleaning are reduced, thereby increasing the efficiency of tomato harvesting operations.
[0007] Furthermore, the scraper disc is welded and coaxially arranged with the guide support wheel; a conveyor belt is installed on the guide support wheel.
[0008] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the scraper disc is welded and coaxially arranged with the guide support wheel, reducing and avoiding blockage by rice seedlings and soil. This ensures the normal operation of the guide support wheel, and the small gap prevents it from getting tangled with weeds. It also avoids the guide support wheel jamming caused by rice seedlings and other debris getting stuck. The conveyor belt facilitates the rotation of the guide support wheel during harvesting operations.
[0009] Furthermore, there is a gap between the scraper disc welded to the guide support wheel.
[0010] The beneficial effects of adopting the above-mentioned further technical solution are: by using a wheel-type scraper disc welded structure, the gap between the guide support wheel and the side wall is reduced and concealed, thus reducing and avoiding clogging by seedling stems and soil. This ensures the normal operation of the guide support wheel.
[0011] Furthermore, the numerical range of the gap between the scraper disc welded to the guide support wheel is 1-2 mm.
[0012] The beneficial effects of adopting the above-mentioned further technical solution are as follows: The welded structure of the disc-type scraper reduces and conceals the gap between the guide support wheel and the side wall, reducing and preventing blockage by seedling stems and soil. This ensures the normal operation of the guide support wheel, and the small gap prevents weeds from getting tangled. It also avoids the guide support wheel jamming caused by seedling stems and other debris getting stuck.
[0013] Furthermore, there is a gap between the scraper and the guide support wheel, and the tip of the scraper has an acute angle structure.
[0014] The beneficial effects of adopting the above-mentioned further technical solution are: the soil and seedling stems that are easily attached to and wrapped around the guide support wheel surface are squeezed and removed by the scraper. At the same time, it prevents the scraper from obstructing the rotation of the guide support wheel, ensuring the normal operation of the guide support wheel.
[0015] Furthermore, the numerical range of the gap between the scraper and the guide support wheel is 2-3 mm.
[0016] The beneficial effects of adopting the above-mentioned further technical solution are: the smaller gap makes it less prone to grass entanglement, and it avoids the guide support wheel jamming caused by the entry of rice seedlings and other debris.
[0017] Furthermore, the scraper disc welding includes: a scraper disc and a scraper mounting plate, the scraper disc being mounted on the frame, the scraper mounting plate being mounted on the scraper disc, and the scraper being mounted on the scraper mounting plate by scraper mounting bolts.
[0018] The beneficial effects of adopting the above-mentioned further technical solution are: the welded structure of the disc-type scraper reduces and conceals the gap between the guide support wheel and the side wall, thereby reducing and avoiding clogging by seedling stems and soil. The scraper mounting plate facilitates the installation and maintenance of the scraper.
[0019] Furthermore, the scraper mounting plate is vertically mounted on the scraper disc, the scraper mounting plate is provided with at least one first mounting hole, and the scraper is provided with at least one second mounting hole. The first mounting hole is an elongated hole in the left-right direction, and the second mounting hole is an elongated hole in the front-back direction. The scraper mounting bolt is located in the first mounting hole and the second mounting hole.
[0020] The beneficial effects of adopting the above-mentioned further technical solution are as follows: When space is limited, the position of the scraper can be adjusted by changing the welding of the scraper disc and the position of the mounting holes on the scraper. The scraper mounting plate has elongated holes in the left and right directions, which can realize the left and right movement of the scraper; the scraper has elongated holes in the front and back directions, which can realize the front and back adjustment of the scraper. The relative gap and position between the scraper and the guide support wheel can be adjusted at multiple angles and in multiple directions, realizing the cleaning function of the scraper structure. The structure is simple and reliable, and has a high cost performance.
[0021] Furthermore, the scraper disc is provided with multiple third mounting holes for connection with the frame.
[0022] The beneficial effects of adopting the above-mentioned further technical solution are: the setting of the third mounting hole facilitates the connection between the scraper disc and the frame, and facilitates the installation and maintenance of the scraper disc.
[0023] In addition, this utility model also provides a harvester, including a disc scraper structure as described in any one of the above.
[0024] The beneficial effects of adopting this utility model's technical solution are: the soil and vine stems attached to and entangled on the guide support wheel surface are squeezed and removed by the scraper. This improves the problem of the guide support wheel getting stuck due to soil and vine stems during operation, as well as the resulting conveyor belt skewing, slippage, and wear. Through low-cost structural optimization, the frequency and intensity of manual cleaning are reduced, thereby increasing the efficiency of tomato harvesting operations.
[0025] The advantages of this invention in its additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the disc scraper structure provided in an embodiment of the present utility model.
[0027] Figure 2 This is one of the structural schematic diagrams of the scraper disc welding provided in the embodiments of this utility model.
[0028] Figure 3 This is the second schematic diagram of the welded scraper disc provided in an embodiment of the present utility model.
[0029] Figure 4 This is one of the structural schematic diagrams of the scraper provided in the embodiment of this utility model.
[0030] Figure 5 This is the second schematic diagram of the scraper provided in the embodiment of this utility model.
[0031] Explanation of reference numerals in the attached diagram: 1. Conveyor belt; 2. Guide support wheel; 3. Scraper disc welded together; 4. Scraper; 5. Scraper mounting bolt; 6. Scraper disc; 7. Scraper mounting plate; 8. Frame; 9. First mounting hole; 10. Second mounting hole; 11. Third mounting hole. Detailed Implementation
[0032] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are only used to explain this utility model and are not intended to limit the scope of this utility model.
[0033] like Figures 1 to 5 As shown, this utility model embodiment provides a disc-type scraper structure, including: a frame 8, a guide support wheel 2, a scraper disc weld 3, and a scraper 4. The guide support wheel 2 is rotatably mounted on the frame 8, the scraper disc weld 3 is mounted on the frame 8, the scraper disc weld 3 is arranged around the periphery of the guide support wheel 2, and the scraper 4 is mounted on the scraper disc weld 3.
[0034] The beneficial effects of adopting this utility model's technical solution are: the soil and vine stems attached to and entangled on the guide support wheel surface are squeezed and removed by the scraper. This improves the problem of the guide support wheel getting stuck due to soil and vine stems during operation, as well as the resulting conveyor belt skewing, slippage, and wear. Through low-cost structural optimization, the frequency and intensity of manual cleaning are reduced, thereby increasing the efficiency of tomato harvesting operations.
[0035] like Figures 1 to 5 As shown, the scraper disc welding 3 is further coaxially arranged with the guide support wheel 2; a conveyor belt 1 is installed on the guide support wheel 2.
[0036] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the scraper disc is welded and coaxially arranged with the guide support wheel, reducing and avoiding blockage by rice seedlings and soil. This ensures the normal operation of the guide support wheel, and the small gap prevents it from getting tangled with weeds. It also avoids the guide support wheel jamming caused by rice seedlings and other debris getting stuck. The conveyor belt facilitates the rotation of the guide support wheel during harvesting operations.
[0037] like Figures 1 to 5 As shown, further, there is a gap between the scraper disc weld 3 and the guide support wheel 2.
[0038] The beneficial effects of adopting the above-mentioned further technical solution are: by using a wheel-type scraper disc welded structure, the gap between the guide support wheel and the side wall is reduced and concealed, thus reducing and avoiding clogging by seedling stems and soil. This ensures the normal operation of the guide support wheel.
[0039] like Figures 1 to 5As shown, the gap between the scraper disc weld 3 and the guide support wheel 2 is in the range of 1-2 mm.
[0040] The beneficial effects of adopting the above-mentioned further technical solution are as follows: The welded structure of the disc-type scraper reduces and conceals the gap between the guide support wheel and the side wall, reducing and preventing blockage by seedling stems and soil. This ensures the normal operation of the guide support wheel, and the small gap prevents weeds from getting tangled. It also avoids the guide support wheel jamming caused by seedling stems and other debris getting stuck.
[0041] like Figures 1 to 5 As shown, further, there is a gap between the scraper 4 and the guide support wheel 2, and the tip of the scraper 4 has an acute angle structure.
[0042] The beneficial effects of adopting the above-mentioned further technical solution are: the soil and seedling stems that are easily attached to and wrapped around the guide support wheel surface are squeezed and removed by the scraper. At the same time, it prevents the scraper from obstructing the rotation of the guide support wheel, ensuring the normal operation of the guide support wheel.
[0043] like Figures 1 to 5 As shown, the gap between the scraper 4 and the guide support wheel 2 is in the range of 2-3 mm.
[0044] The beneficial effects of adopting the above-mentioned further technical solution are: the smaller gap makes it less prone to grass entanglement, and it avoids the guide support wheel jamming caused by the entry of rice seedlings and other debris.
[0045] like Figures 1 to 5 As shown, the scraper disc welding 3 further includes: a scraper disc 6 and a scraper mounting plate 7. The scraper disc 6 is mounted on the frame 8, the scraper mounting plate 7 is mounted on the scraper disc 6, and the scraper 4 is mounted on the scraper mounting plate 7 by scraper mounting bolts 5.
[0046] The beneficial effects of adopting the above-mentioned further technical solution are: the welded structure of the disc-type scraper reduces and conceals the gap between the guide support wheel and the side wall, thereby reducing and avoiding clogging by seedling stems and soil. The scraper mounting plate facilitates the installation and maintenance of the scraper.
[0047] In addition to the option of mounting the scraper 4 on the scraper mounting plate 7 via scraper mounting bolts 5, the scraper can also be welded and fixed to the scraper disc.
[0048] like Figures 1 to 5 As shown, the scraper mounting plate 7 is vertically mounted on the scraper disc 6. The scraper mounting plate 7 is provided with at least one first mounting hole 9, and the scraper 4 is provided with at least one second mounting hole 10. The first mounting hole 9 is an elongated hole in the left-right direction, and the second mounting hole 10 is an elongated hole in the front-back direction. The scraper mounting bolt 5 is located in the first mounting hole 9 and the second mounting hole 10.
[0049] The beneficial effects of adopting the above-mentioned further technical solution are as follows: When space is limited, the position of the scraper can be adjusted by changing the welding of the scraper disc and the position of the mounting holes on the scraper. The scraper mounting plate has elongated holes in the left and right directions, which can realize the left and right movement of the scraper; the scraper has elongated holes in the front and back directions, which can realize the front and back adjustment of the scraper. The relative gap and position between the scraper and the guide support wheel can be adjusted at multiple angles and in multiple directions, realizing the cleaning function of the scraper structure. The structure is simple and reliable, and has a high cost performance.
[0050] like Figures 1 to 5 As shown, the scraper disc 6 is further provided with a plurality of third mounting holes 11 for connecting to the frame 8.
[0051] The beneficial effects of adopting the above-mentioned further technical solution are: the setting of the third mounting hole facilitates the connection between the scraper disc and the frame, and facilitates the installation and maintenance of the scraper disc.
[0052] The plurality of third mounting holes 11 are arranged at equal intervals around the periphery of the scraper disc 6. The third mounting holes 11 can be circular through holes.
[0053] Working principle explanation of disc scraper (disc scraper structure) (see) Figure 1 The scraper disc weld 3 and the guide support wheel 2 are coaxially mounted on the side wall (side wall of the frame), with a gap of 1-2mm between them. This gap can be either the axial gap between the scraper disc weld 3 and the guide support wheel 2, or the radial gap between them. This ensures the normal operation of the guide support wheel and prevents grass from getting tangled in the gap. The scraper 4 is mounted on the bracket (scraper mounting plate 7) of the scraper disc weld 3. Adjust the scraper mounting bolts 5 to ensure that the gap between the scraper 4 and the guide support wheel 2 is 2-3mm. (When space is limited, the scraper position can be adjusted by changing the position of the mounting holes on the scraper disc weld 3). This gap can be the radial gap between the scraper 4 and the guide support wheel 2.
[0054] The scraper disc welding assembly 3 consists of the scraper disc 6 and the scraper mounting plate 7 (see...). Figure 2 The scraper disc 6 has multiple circular holes / threaded holes (third mounting holes) for installation; the scraper mounting plate 7 has elongated holes running left and right (first mounting holes, along the length of the scraper mounting plate), allowing the scraper to move left and right; the scraper 4 has elongated holes running front and back (second mounting holes, along the length of the scraper), allowing the scraper to be adjusted front and back; the tip (free end) of the scraper 4 is an acute angle (see...). Figure 3 ).
[0055] During the harvesting process, the conveyor belt 1 drives the guide support wheel 2 to rotate. ① The soil and seedling stems attached to and wrapped around the wheel surface of the guide support wheel 2 are squeezed and removed by the scraper 4. ② The gap between the guide disc of the guide support wheel 2 and the scraper disc 6 is only 1mm, which avoids the guide support wheel from getting stuck due to seedling stems and other debris.
[0056] The present invention provides a disc scraper structure that can achieve "wheel surface-side" cleaning of debris from a support wheel (guide support wheel). The free end of the scraper is located near the guide support wheel, specifically, the free end of the scraper is located near the side of the guide support wheel.
[0057] 1. The disc-type (welded scraper disc) structure reduces / conceals the gap between the roller (guide support roller 2) and the side wall (side wall of the frame), reducing / avoiding clogging by seedling stems and soil. 2. The relative gap and position of the scraper and guide support roller can be adjusted at multiple angles and directions to achieve the scraper structure's cleaning function. The structure is simple, reliable, and cost-effective.
[0058] 1. The low-cost scraper disc structure enables the cleaning of the guide support wheel surface and sides, which is simple and reliable.
[0059] 2. Effectively reduces the workload of machine operators, ensures the guide support wheels work effectively for a long time, and improves tomato harvesting efficiency.
[0060] In addition, this utility model also provides a harvester, including a disc scraper structure as described in any one of the above.
[0061] The beneficial effects of adopting this utility model's technical solution are: the soil and vine stems attached to and entangled on the guide support wheel surface are squeezed and removed by the scraper. This improves the problem of the guide support wheel getting stuck due to soil and vine stems during operation, as well as the resulting conveyor belt skewing, slippage, and wear. Through low-cost structural optimization, the frequency and intensity of manual cleaning are reduced, thereby increasing the efficiency of tomato harvesting operations.
[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A wheel and doctor blade configuration, characterized by, include: The machine includes a frame, guide support wheels, a scraper disc welded together, and a scraper. The guide support wheels are rotatably mounted on the frame, the scraper disc is welded together and mounted on the frame, the scraper disc is welded together and arranged around the periphery of the guide support wheels, and the scraper is mounted on the scraper disc welded together.
2. A wheel and doctor structure according to claim 1, wherein The scraper disc is welded to and coaxially arranged with the guide support wheel; a conveyor belt is installed on the guide support wheel.
3. A wheel and doctor structure according to claim 1 wherein, There is a gap between the scraper disc welded to the guide support wheel.
4. The disc scraper structure according to claim 3, characterized in that, The gap between the scraper disc welded to the guide support wheel is in the range of 1-2 mm.
5. A wheel and disc doctor configuration according to claim 1 wherein, There is a gap between the scraper and the guide support wheel, and the tip of the scraper has an acute angle structure.
6. A wheel and doctor structure according to claim 5, wherein The gap between the scraper and the guide support wheel is in the range of 2-3 mm.
7. A wheel and disc doctor configuration according to claim 1 wherein, The scraper disc welding includes: a scraper disc and a scraper mounting plate. The scraper disc is mounted on the frame, the scraper mounting plate is mounted on the scraper disc, and the scraper is mounted on the scraper mounting plate by scraper mounting bolts.
8. A wheel and doctor structure according to claim 7, wherein The scraper mounting plate is vertically mounted on the scraper disc. The scraper mounting plate is provided with at least one first mounting hole, and the scraper is provided with at least one second mounting hole. The first mounting hole is an elongated hole in the left-right direction, and the second mounting hole is an elongated hole in the front-back direction. The scraper mounting bolt is located in the first mounting hole and the second mounting hole.
9. A wheel and doctor structure according to claim 7, wherein The scraper disc is provided with multiple third mounting holes for connection with the frame.
10. A harvester characterized by The invention includes a disc scraper structure as described in any one of claims 1 to 9.