High-end wheel carrier capable of efficiently reducing local stress load of rake frame

By widening the wheel column and hydraulic cylinder support beam, the force arm is increased, and the connection is improved through diamond-shaped reinforcing plates and rolling friction. This solves the problem of insufficient force on the existing wheel frame, effectively reducing the local load on the rake frame, and improving the lifting and lowering rate and service life.

CN224139474UActive Publication Date: 2026-04-21XUZHOU ZHONGYANG AGRI MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUZHOU ZHONGYANG AGRI MASCH CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the existing wheel frame design, the lever arm of the rake frame is relatively small, which leads to an increase in the pulling force of the lifting cylinder, making the cylinder support beam prone to bending or breaking, and shortening its service life.

Method used

The design adopts a widened wheel column and cylinder support beam to increase the force arm, and strengthens the connection with a diamond-shaped reinforcing plate. Rolling friction is used to replace sliding friction to reduce the load on the lifting cylinder.

Benefits of technology

It effectively reduces local stress on the rake frame, increases the lifting and lowering rate, extends service life, and enhances structural stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-end wheel carrier capable of efficiently reducing the local stress load of a harrow frame, which comprises the harrow frame, a novel wheel carrier, a lifting oil cylinder and a wheel body, the novel wheel carrier comprises a wheel carrier shaft, a support square tube, a widened wheel column and an oil cylinder support arm support beam, the harrow frame is detachably provided with two groups of wheel carrier shaft seats, the wheel carrier shaft seats are symmetrically arranged, and the lifting oil cylinder is arranged on the wheel carrier shaft seats. The two ends of the wheel carrier shaft are rotationally arranged on the two sets of wheel carrier shaft seats respectively, the widened wheel columns are welded to the wheel carrier shaft, the two sets of widened wheel columns are symmetrically arranged, the supporting square pipe is welded to the two sets of widened wheel columns, and the oil cylinder supporting arm supporting beam is welded between the two sets of widened wheel columns. And a wheel carrier oil cylinder support arm is welded on the oil cylinder support arm support beam. The utility model relates to the technical field of agricultural equipment, in particular to a high-end wheel carrier capable of efficiently reducing local stress load of a harrow frame, which is firm in structure, capable of reducing local stress of the harrow frame, favorable for increasing the rising and falling speed of the wheel carrier, high in appearance and long in service life.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment technology, specifically to a high-end and efficient wheel frame that reduces the local stress load on the harrow frame. Background Technology

[0002] The wheel frame is an essential part of the rake, primarily connecting the tires for movement or depth control. Therefore, both the position and structure of the wheel frame are crucial design considerations. For example... Figures 8-11 , Figure 8 This is the front view of the existing wheel frame. Figure 9 This is a side view of the existing wheel frame. Figure 10 This is a side view showing the connection between the existing wheel frame, rake frame, lifting cylinder, and wheel body. Figure 11 A top view showing the connection between the existing wheel frame, rake frame, lifting cylinder, and wheel body, as shown below. Figures 8-11 As shown, the existing wheel frame 26 consists of a wheel frame axle 27, a wheel column 28, and a support square tube 29. A wheel frame axle seat 34 is provided on the rake frame 31, and the wheel frame axle 27 is rotatably mounted on the wheel frame axle seat 34. A hydraulic cylinder support beam II 32 is provided on the rake frame 31, and a rake frame hydraulic cylinder support arm 35 is provided on the hydraulic cylinder support beam II 32. A wheel frame hydraulic cylinder support arm 30 is provided on the wheel frame axle 27. The two ends of the lifting cylinder 33 are respectively connected to the rake frame hydraulic cylinder support arm 35 and the wheel frame hydraulic cylinder support arm 30 via pins. The wheel body 36 is mounted on the support square tube 29. Based on the above, the biggest drawback of the existing wheel frame design is that the tensile force arm L2 is relatively small, while the tensile force F2 of the lifting cylinder 33 increases. This causes the original hydraulic cylinder support beam II 32 to be overloaded, which can lead to bending or even breakage of the hydraulic cylinder support beam II 32, resulting in damage to the rake frame and a significantly shortened service life. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a high-end and efficient wheel frame that reduces the local stress on the rake frame, helps to accelerate the lifting and lowering speed of the wheel frame, has a high-end appearance and long service life, and effectively reduces the local stress load on the rake frame.

[0004] The technical solution adopted by this utility model is as follows: This utility model provides a high-end and efficient wheel frame for reducing localized stress loads on a rake frame, comprising a rake frame, a novel wheel frame, a lifting cylinder, and a wheel body. The novel wheel frame includes a wheel frame axle, a supporting square tube, a widened wheel column, and a cylinder support arm beam. The rake frame is detachably equipped with a wheel frame axle seat, and two sets of wheel frame axle seats are symmetrically arranged. The two ends of the wheel frame axle are rotatably mounted on the two sets of wheel frame axle seats. The widened wheel column is welded to the wheel frame axle, and two sets of widened wheel columns are symmetrically arranged. The supporting square tube is welded to the two sets of widened wheel columns. The cylinder support arm beam is welded between the two sets of widened wheel columns, and a wheel frame cylinder support arm is welded to the cylinder support arm beam.

[0005] A hydraulic cylinder support beam I is welded onto the rake frame, and a rake frame hydraulic cylinder support arm is welded onto the hydraulic cylinder support beam I. The two ends of the lifting hydraulic cylinder are respectively connected to the wheel frame hydraulic cylinder support arm and the rake frame hydraulic cylinder support arm via pins. Support sleeves are welded to both ends of the support square tube, and the wheel axle of the wheel body is detachably mounted on the support sleeve.

[0006] Furthermore, the wheel frame axle seat includes a top plate, a support plate, a axle seat sleeve, and axle seat cover. The top plate is detachably mounted on the rake frame. The support plate is welded to the top plate. Two sets of support plates are symmetrically arranged. The axle seat sleeve is welded to the two sets of support plates. The axle seat cover is detachably mounted on one end of the axle seat sleeve. The wheel frame axle is rotatably mounted inside the axle seat sleeve via a bearing. An oil seal is provided inside the axle seat sleeve.

[0007] Furthermore, the top plate is detachably mounted on the rake frame via a first bolt.

[0008] Furthermore, the axle of the wheel body is detachably mounted on the support sleeve via a second bolt.

[0009] Furthermore, the bearing cover is detachably mounted on one side of the bearing sleeve by a third bolt.

[0010] Furthermore, a diamond-shaped reinforcing plate I is welded at the connection between the widened wheel column and the cylinder arm support beam.

[0011] Furthermore, a rhomboid reinforcing plate II is welded at the connection between the rake frame and the hydraulic cylinder support beam I.

[0012] The beneficial effects of this utility model by adopting the above structure are as follows:

[0013] 1. Robust Structure: The wheel arches are widened and enlarged, with a hydraulic cylinder support beam added between the widened wheel arches. This beam supports the hydraulic cylinder support arm of the wheel frame while also reinforcing the new wheel frame. The diamond-shaped reinforcing plate I further strengthens the hydraulic cylinder support beam, making it more stable under load.

[0014] 2. Efficiently reduce local stress on the rake frame: The existing wheel frame cylinder support arm is set on the wheel frame shaft, while the new wheel frame in this application has the wheel frame cylinder support arm set on the cylinder support arm support beam. This makes the force arm L1 of the new wheel frame longer, the lifting cylinder tension F1 reduced, the lifting cylinder load reduced, and thus the cylinder support beam I reduced, reducing the degree of damage to parts and increasing the service life of the machine.

[0015] 3. The new wheel frame has a faster lifting and lowering speed: In the existing wheel frame, the pushing and pulling force of the lifting cylinder is on the wheel frame axle, and the lever arm L2 of the wheel frame is extremely small. It is relatively difficult for the lifting cylinder to pull up, and the wheel frame is relatively slow to lift and lower. However, in the new wheel frame of this application, the pushing and pulling force of the lifting cylinder is at the cylinder support beam, and the lever arm L1 is greatly increased. According to the lever principle, it is easier for the lifting cylinder to push and pull the new wheel frame, and the lifting and lowering speed of the new wheel frame is also faster.

[0016] 4. Long service life: In this application, the wheel frame axle and the wheel frame axle seat are connected by bearings, which changes the traditional sliding friction into rolling friction, reduces frictional damage to the wheel frame axle, and extends its service life. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a front view of the novel wheel frame in an embodiment of this utility model;

[0019] Figure 2 This is a side view of the novel wheel frame in an embodiment of this utility model;

[0020] Figure 3 This is a side view showing the connection between the rake frame, the new wheel frame, the lifting cylinder, and the wheel body in an embodiment of this utility model.

[0021] Figure 4 This is a top view showing the connection between the rake frame, the new wheel frame, the lifting cylinder, and the wheel body in this embodiment of the utility model.

[0022] Figure 5 This is a front view of the wheel frame axle seat in an embodiment of this utility model;

[0023] Figure 6 This is a side view of the wheel frame axle seat in an embodiment of this utility model;

[0024] Figure 7 This is a schematic diagram showing the connection between the wheel frame axle seat and the wheel frame axle in an embodiment of this utility model;

[0025] Figure 8 This is the front view of the existing wheel frame;

[0026] Figure 9 This is a side view of the existing wheel frame;

[0027] Figure 10 A side view showing the connection between the existing wheel frame, rake frame, lifting cylinder, and wheel body;

[0028] Figure 11This is a top view showing the connection between the existing wheel frame, rake frame, lifting cylinder, and wheel body.

[0029] The components include: 1. Rake frame; 2. New type wheel frame; 3. Lifting cylinder; 4. Wheel body; 5. Wheel frame axle seat; 6. Cylinder support beam I; 7. Rake frame cylinder support arm; 8. Wheel frame axle; 9. Support square tube; 10. Widened wheel column; 11. Cylinder support arm support beam; 12. Wheel frame cylinder support arm; 13. Support sleeve; 14. Top plate; 15. Support plate; 16. Axle seat sleeve; 17. Axle seat cover; 18. Bearing; 19. Oil seal. 20. Shaft seat reinforcing plate; 21. First bolt; 22. Second bolt; 23. Third bolt; 24. Diamond reinforcing plate I; 25. Diamond reinforcing plate II; 26. Wheel frame; 27. Wheel frame shaft; 28. Wheel column; 29. ​​Support square tube; 30. Wheel frame cylinder support arm; 31. Rake frame; 32. Cylinder support beam II; 33. Lifting cylinder; 34. Wheel frame shaft seat; 35. Rake frame cylinder support arm; 36. Wheel body. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] like Figures 1-7As shown, this utility model discloses a high-end and efficient wheel frame for reducing localized stress loads on a rake frame. It includes a rake frame 1, a novel wheel frame 2, a lifting cylinder 3, and a wheel body 4. The novel wheel frame 2 includes a wheel frame axle 8, a supporting square tube 9, a widened wheel column 10, and a cylinder support arm beam 11. A wheel frame axle seat 5 is detachably mounted on the rake frame 1, with two sets of wheel frame axle seats 5 symmetrically arranged. The two ends of the wheel frame axle 8 are rotatably mounted on the two sets of wheel frame axle seats 5. The widened wheel column 10 is welded to the wheel frame axle 8, with two sets of widened wheel columns 10 symmetrically arranged. The supporting square tube 9 is welded to the two sets of widened wheel columns 10. The cylinder support arm beam 11 is welded between the two sets of widened wheel columns 10. A wheel frame cylinder support arm 12 is welded onto the support beam 11, a cylinder support beam I6 is welded onto the rake frame 1, and a rake frame cylinder support arm 7 is welded onto the cylinder support beam I6. The two ends of the lifting cylinder 3 are respectively connected to the wheel frame cylinder support arm 12 and the rake frame cylinder support arm 7 via pins. Support sleeves 13 are welded to both ends of the support square tube 9. The wheel axle of the wheel body 4 is detachably mounted on the support sleeve 13. The wheel axle of the wheel body 4 is detachably mounted on the support sleeve 13 via the second bolt 22. A diamond-shaped reinforcing plate I24 is welded at the connection between the widened wheel column 10 and the cylinder support arm support beam 11. A diamond-shaped reinforcing plate II25 is welded at the connection between the rake frame 1 and the cylinder support beam I6.

[0033] The wheel frame axle seat 5 includes a top plate 14, a support plate 15, a seat sleeve 16, and a seat cover 17. The top plate 14 is detachably mounted on the rake frame 1. The support plate 15 is welded to the top plate 14, and two sets of support plates 15 are symmetrically arranged. The seat sleeve 16 is welded to the two sets of support plates 15. The seat cover 17 is detachably mounted on one end of the seat sleeve 16. The wheel frame axle 8 is rotatably mounted inside the seat sleeve 16 via a bearing 18. An oil seal 19 is provided inside the seat sleeve 16. The top plate 14 is detachably mounted on the rake frame 1 via a first bolt 21. The seat cover 17 is detachably mounted on one side of the seat sleeve 16 via a third bolt 23.

[0034] In practical use, the extension and retraction of the output shaft of the lifting cylinder 3 drives the new wheel frame 2 to rotate on the wheel frame axle seat 5, thereby realizing the raising and lowering of the wheel body 4 set on the new wheel frame 2. By connecting the two ends of the lifting cylinder 3 to the rake frame cylinder support arm 7 and the wheel frame cylinder support arm 12 respectively, the force arm L1 of the new wheel frame 2 is lengthened, and the pulling force F1 of the lifting cylinder 3 is reduced. Through the above structural design, on the one hand, it is easier for the lifting cylinder 3 to push and pull the new wheel frame 2, and it also speeds up the raising and lowering rate of the new wheel frame 2. On the other hand, the stress on the cylinder support beam I6 is reduced, which can effectively prevent the cylinder support beam I6 from bending or even breaking, thus preventing damage to the rake frame 1. At the same time, by setting a widened wheel column 10 and adding a diamond-shaped reinforcing plate I24 at its welding point, the welding is made more solid, and it is not easy to be damaged even under great force, which further increases the strength of the rake frame 1, enhances the stability of the rake frame 1 and its service life.

[0035] In summary, the wheel post 10 is made larger and wider, and a hydraulic cylinder support beam 11 is added between the widened wheel posts 10. While bearing the hydraulic cylinder support arm 12 of the wheel frame, it also strengthens the new wheel frame 2. The diamond-shaped reinforcing plate I24 further strengthens the cylinder arm support beam 11, making it more stable under load. In this application, the cylinder arm 12 of the new wheel frame 2 is set on the cylinder arm support beam 11, which lengthens the lever arm L1 of the new wheel frame 2, reduces the pulling force F1 of the lifting cylinder 3, reduces the load on the lifting cylinder 3, and thus reduces the load on the cylinder support beam I6, reduces the damage to parts, and increases the service life of the machine. In this application, the pushing and pulling force of the lifting cylinder 3 on the new wheel frame 2 is located at the cylinder arm support beam 11, and the lever arm L1 is greatly increased. According to the lever principle, it is easier for the lifting cylinder 3 to push and pull the new wheel frame 2 at this time, and it also speeds up the lifting and lowering rate of the new wheel frame 2. In this application, the wheel frame shaft 8 and the wheel frame shaft seat 5 are connected by a bearing 18, which changes the traditional sliding friction into rolling friction, reduces the frictional damage of the wheel frame shaft 8, and extends its service life.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-end and efficient wheel frame for reducing localized stress loads on a rake frame, comprising a rake frame (1), a novel wheel frame (2), a lifting cylinder (3), and a wheel body (4), characterized in that: The new wheel frame (2) includes a wheel frame axle (8), a supporting square tube (9), a widened wheel column (10), and a hydraulic cylinder support beam (11). The rake frame (1) is detachably equipped with wheel frame axle seats (5), and two sets of wheel frame axle seats (5) are symmetrically arranged. The two ends of the wheel frame axle (8) are rotatably mounted on the two sets of wheel frame axle seats (5). The widened wheel column (10) is welded to the wheel frame axle (8), and two sets of widened wheel columns (10) are symmetrically arranged. The supporting square tube (9) is welded to the two sets of widened wheel columns (10). The hydraulic cylinder support beam (11) 11) Welded between two sets of widened wheel columns (10), the cylinder support beam (11) is welded with a wheel frame cylinder support arm (12), the rake frame (1) is welded with a cylinder support beam I (6), the cylinder support beam I (6) is welded with a rake frame cylinder support arm (7), the two ends of the lifting cylinder (3) are respectively connected to the wheel frame cylinder support arm (12) and the rake frame cylinder support arm (7) by pins, the two ends of the support square tube (9) are welded with support sleeves (13), and the wheel axle of the wheel body (4) is detachably mounted on the support sleeve (13).

2. The high end and high efficient wheel frame for reducing the local force load of the harrow frame according to claim 1, characterized in that: The wheel frame axle seat (5) includes a top plate (14), a support plate (15), axle seat sleeve (16), and axle seat cover (17). The top plate (14) is detachably mounted on the rake frame (1). The support plate (15) is welded to the top plate (14). Two sets of support plates (15) are symmetrically arranged. The axle seat sleeve (16) is welded to the two sets of support plates (15). The axle seat cover (17) is detachably mounted on one end of the axle seat sleeve (16). The wheel frame axle (8) is rotatably mounted inside the axle seat sleeve (16) via a bearing (18). An oil seal (19) is provided inside the axle seat sleeve (16).

3. The high end and high efficient wheel frame for reducing the local force load of the harrow frame according to claim 2, characterized in that: The top plate (14) is detachably mounted on the rake frame (1) by means of the first bolt (21).

4. The high end and high efficient wheel frame to reduce the local stress load of the harrow frame according to claim 1, characterized in that: The axle of the wheel body (4) is detachably mounted on the support sleeve (13) by means of the second bolt (22).

5. The high end and high efficient wheel frame to reduce the local stress load of the rake frame according to claim 2, characterized in that: The bearing cover (17) is detachably mounted on one side of the bearing sleeve (16) by a third bolt (23).

6. The high end and high efficient wheel frame to reduce the local stress load of the rake frame according to claim 1, characterized in that: A rhomboid reinforcing plate I (24) is welded at the connection between the widened wheel column (10) and the cylinder arm support beam (11).

7. The high end and high efficient wheel frame to reduce the local stress load of the harrow frame according to claim 1, characterized in that: A rhomboid reinforcing plate II (25) is welded at the connection between the rake frame (1) and the cylinder support beam I (6).