Side wall structure for chopper of harvester

Abstract

The utility model belongs to the technical field of chopping devices, and particularly relates to a side wall structure for a harvester chopper, which comprises a left side wall and a right side wall which are identical in structure, the left side wall comprises a main plate body, and a reinforcing boss is integrally punched on the main plate body. A bearing hole used for installing a chopper movable cutter shaft bearing is punched in the position, close to the middle of the reinforcing boss, of the reinforcing boss, at least two connecting holes used for allowing bolts to penetrate through are formed in the reinforcing boss along the periphery of the bearing hole at equal intervals, and reinforcing grooves are symmetrically punched in the positions, located on the two sides of the reinforcing boss, of the main plate body. The stamping directions of the reinforcing boss and the reinforcing groove are opposite, folded edges are integrally stamped on the periphery of the mainboard body, and the protruding direction of the folded edges is the same as the stamping direction of the reinforcing boss; the integral structural design is simple and reasonable, the production process is simple, time and labor are saved, the structural strength is high, and the stability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of chopping devices, and in particular relates to a side wall structure used for a harvester chopper. Background Art

[0002] At present, the side wall of the harvester chopper adopts Figure 1 As shown, the side wall of the chopper is formed by bending angle steel as a frame, and then welded to a 1.5 mm thick steel plate. In addition, the bracket plate is fitted and welded together at the installation hole of the movable blade shaft to play a reinforcing role. However, this structure has many shortcomings:

[0003] First of all, the production process is relatively complicated. The bending of angle steel, welding of steel plates, and welding of bracket plates require a lot of manual operation, which leads to high labor costs.

[0004] Secondly, although some areas have been reinforced, the reinforced parts are still not firm during actual use. As a result, when the chopper is working, the moving knife shaft will generate a large impact force and vibration, which can easily cause the reinforced parts to loosen or even be damaged, affecting the normal operation and service life of the equipment.

[0005] Finally, due to the presence of a large number of welded parts in this structure, welding deformation is inevitable during the welding process, which will seriously affect the accuracy of the workpiece, reduce the installation and operation accuracy of the chopper, and further affect its working efficiency and performance stability. Utility Model Content

[0006] The main technical problem to be solved by the utility model is to provide a side wall structure for a harvester chopper which has a simple and reasonable overall structural design, a simple production process, saves time and labor, and has high structural strength and high stability.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A side wall structure for a harvester chopper comprises two left and right walls with identical structures. The left wall comprises a main board body, a reinforcing boss is integrally stamped on the main board body, a bearing hole for mounting a chopper movable blade shaft bearing is stamped near the middle of the reinforcing boss, at least two connecting holes for passing bolts are evenly spaced along the outer circumference of the bearing hole on the reinforcing boss, reinforcing grooves are symmetrically stamped on the main board body on both sides of the reinforcing boss, the reinforcing boss and the reinforcing groove are stamped in opposite directions, folded edges are integrally stamped all around the main board body, and the raised direction of the folded edges is the same as the stamped direction of the reinforcing boss.

[0009] The following is a further optimization of the above technical solution by the present invention:

[0010] The overall shape of the reinforcing boss is a truncated cone shape, and the reinforcing boss is integrally stamped and formed on the main board body.

[0011] Further optimization: the reinforcing boss and the bearing hole are concentrically arranged.

[0012] Further optimization: the cross section of the reinforcing boss is an isosceles trapezoid, the table top of the reinforcing boss is a plane, the two side surfaces of the reinforcing boss are inclined surfaces, and the corners of the reinforcing boss are smooth transitions.

[0013] Further optimization: the angle between the table surface of the reinforcing boss and the side surface of the reinforcing boss is α, and α is 130°~140°.

[0014] Further optimization: the width of the reinforcing boss accounts for 1 / 2 to 3 / 5 of the width of the main board body 1, and the length of the reinforcing boss accounts for 1 / 3 to 2 / 5 of the length of the main board body.

[0015] Further optimization: the height of the reinforcing boss is h, and h is 7mm~9mm.

[0016] Further optimization: the cross section of the reinforcing groove is an isosceles trapezoid, the bottom of the reinforcing groove is a plane, the two side surfaces of the reinforcing groove are inclined surfaces, and the corners of the reinforcing groove are smooth transitions.

[0017] Further optimization: the angle between the bottom of the reinforcement groove and the side of the reinforcement groove is β, and β is 155°~165°.

[0018] Further optimization: the depth of the reinforcement groove is consistent with the height of the reinforcement boss.

[0019] The utility model greatly enhances the overall strength and rigidity of the side wall by integrally stamping a reinforcing boss on the main board body, so that the harvester can withstand greater impact and vibration during operation, reduces the risk of deformation and damage of the side wall, and improves the stability and reliability of the side wall structure.

[0020] The utility model symmetrically stamps reinforcement grooves on both sides of the boss on the main board body, and the stamping directions of the reinforcement boss and the reinforcement groove are opposite, thereby not only increasing the strength of the main board body, but also dispersing stress to a certain extent, improving the fatigue resistance of the side wall structure, and extending its service life.

[0021] The utility model further enhances the edge strength of the side wall by integrally punching the folded edges around the main body, thereby preventing the edge from being deformed or damaged, and also facilitates the installation and fixing of the side wall.

[0022] The utility model adopts an integrated stamping design, which makes the manufacture of the side wall structure simpler and more efficient, reduces production costs, and improves product consistency and quality stability.

[0023] By adopting the above technical solution, the overall structural design of the utility model is simple and reasonable, the production process is simple, time and labor are saved, and the structure has high strength and high stability.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the side wall of the chopper in the background technology of the present utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0027] Figure 3 for Figure 1 Cross-sectional view along the AA direction.

[0028] In the figure: 1-main board body; 2-reinforcement boss; 3-bearing hole; 4-connection hole; 5-reinforcement groove; 6-folded edge. DETAILED DESCRIPTION

[0029] like Figure 1-3 As shown, a side wall structure for a harvester chopper includes two left and right walls with the same structure. The left wall includes a main board body 1. A reinforcing boss 2 is integrally stamped on the main board body 1. A bearing hole 3 for the chopper movable blade bearing is stamped near the middle of the reinforcing boss 2. At least two connecting holes 4 for bolts to pass through are evenly spaced along the outer periphery of the bearing hole 3 on the reinforcing boss 2. Reinforcing grooves 5 are symmetrically stamped on both sides of the reinforcing boss 2 on the main board body 1. The stamping directions of the reinforcing boss 2 and the reinforcing groove 5 are opposite. Folding edges 6 are integrally stamped all around the main board body 1. The protruding direction of the folding edge 6 is the same as the stamping direction of the reinforcing boss 2.

[0030] This design, firstly, greatly enhances the overall strength and rigidity of the side wall by integrally stamping a reinforcing boss 2 on the main board body 1, so that during the operation of the harvester, it can withstand greater impact and vibration, reduce the risk of deformation and damage of the side wall, and improve the stability and reliability of the side wall structure.

[0031] Secondly, the bearing hole 3 near the middle of the reinforced boss 2 is used to install the chopper moving shaft bearing. The reinforced boss 2 at this position is designed to provide more stable support for the bearing, ensuring the stable operation of the moving shaft and reducing the occurrence of failures caused by loose or displacement of the bearing.

[0032] Third, at least two connecting holes 4 are arranged at equal intervals along the outer circumference of the bearing hole 3 to connect the bearing seat, so that the connection is more firm and reliable, and can withstand various forces generated by the high-speed rotation of the movable knife shaft, ensuring a tight connection between the bearing seat and the side wall, further improving the stability of the entire chopper.

[0033] Fourthly, reinforcing grooves 5 are symmetrically stamped on both sides of the reinforcing boss 2 on the main board body 1, and the stamping directions of the reinforcing boss 2 and the reinforcing grooves 5 are opposite, which not only increases the strength of the main board body 1, but also disperses the stress to a certain extent, improves the fatigue resistance of the side wall structure, and extends its service life.

[0034] Fifthly, the folded edges 6 integrally stamped around the main body 1 further enhance the edge strength of the side wall, preventing edge deformation or damage, while also facilitating the installation and fixing of the side wall.

[0035] Sixth, the one-piece stamping design makes the manufacturing of the side wall structure simpler and more efficient, reduces production costs, and improves product consistency and quality stability.

[0036] The overall shape of the reinforcing boss 2 is a truncated cone shape, and the reinforcing boss 2 is integrally stamped and formed on the mainboard body 1 .

[0037] With this design, first of all, the truncated cone-shaped reinforcing boss 2 has a uniform force characteristic, so that when the harvester is working, the forces from all directions can be more evenly distributed on the boss, reducing the situation of local stress concentration, thereby effectively improving the overall strength and deformation resistance of the side wall structure.

[0038] Secondly, the one-piece stamping ensures the tightness and integrity of the connection between the reinforcing boss 2 and the mainboard body 1. There are no problems such as loose connection and easy cracking that may occur in welding or other connection methods, which further enhances the reliability of the side wall structure when subjected to complex stress.

[0039] Thirdly, the truncated cone-shaped reinforcement boss 2 is more conducive to the installation and positioning of the bearing, so that the bearing can be better maintained stable on the truncated cone-shaped boss, ensuring the rotation accuracy of the movable blade shaft and improving the working efficiency and chopping quality of the chopper.

[0040] The reinforcing boss 2 and the bearing hole 3 are concentrically arranged.

[0041] With this design, first, the reinforcing boss 2 and the bearing hole 3 are concentrically arranged, so that the reinforcing boss 2 can distribute the force around the bearing hole 3 more evenly, further enhancing the support strength for the bearing. Therefore, during the operation of the harvester, the high-speed rotation of the moving knife shaft will generate greater centrifugal force and vibration. The concentrically arranged reinforcing boss 2 can better withstand these forces, ensure the stable installation of the bearing, and thus improve the stability of the entire side wall structure.

[0042] Secondly, the reinforcing boss 2 and the bearing hole 3 are concentrically arranged to ensure the rotation accuracy of the bearing after installation. Therefore, when the reinforcing boss 2 and the bearing hole 3 are concentric, the bearing can operate in a relatively stable environment, reducing the vibration and friction caused by eccentricity, thereby not only extending the service life of the bearing, but also improving the working efficiency and shredding quality of the chopper.

[0043] Again, the concentric arrangement of the reinforcing boss 2 and the bearing hole 3 makes the manufacturing process simpler and more precise, thereby making it easier to ensure the positional accuracy of the reinforcing boss 2 and the bearing hole 3 during the stamping or processing process, thereby improving production efficiency and product quality.

[0044] The cross section of the reinforcing boss 2 is an isosceles trapezoid, the top of the reinforcing boss 2 is a plane, the two side surfaces of the reinforcing boss 2 are inclined surfaces, and the corners of the reinforcing boss 2 are smooth transitions.

[0045] With this design, first of all, the isosceles trapezoidal shape enables the reinforcing boss 2 to better disperse stress when subjected to forces from different directions, reducing local stress concentration. Compared with other shapes, the isosceles trapezoidal reinforcing boss 2 can provide more uniform support and enhance the overall strength of the side wall.

[0046] Secondly, the surface of the reinforcing boss 2 is flat, which can provide a stable installation surface for the bearing, ensuring that the contact area between the bearing and the reinforcing boss 2 is maximized, thereby improving the installation stability and load-bearing capacity of the bearing. At the same time, the flat surface is also easy to process and manufacture, reducing production costs.

[0047] Again, during the operation of the harvester, the side walls may be subjected to shear forces from different directions. The inclined design can disperse these shear forces over a larger area, reducing the risk of the reinforcing boss 2 being sheared.

[0048] In addition, at the corners of the reinforcing boss 2 , stress concentration is easily generated due to the change in shape. The smooth transition design can effectively alleviate this stress concentration and improve the overall strength and durability of the reinforcing boss 2 .

[0049] The angle between the table surface of the reinforcing boss 2 and the side surface of the reinforcing boss 2 is α, and α is 130°~140°. Preferably, α is 135°.

[0050] With this design, first of all, within this angle range, the reinforcing boss 2 can better disperse stress, so that when the harvester is working, the side wall will be affected by various forces. A reasonable angle can disperse the force along the inclined surface and table surface of the reinforcing boss, reducing local stress concentration, thereby improving the overall strength and stability of the side wall structure.

[0051] Secondly, the angle of 130°~140° makes the inclined surface of the reinforcing boss 2 have a certain inclination, which can provide sufficient support force without being too steep to cause structural instability. At the same time, when the angle is 135°, this balance reaches the best state, and the reinforcing boss 2 can maintain good stability while bearing greater force.

[0052] The width of the reinforcing boss 2 accounts for 1 / 2 to 3 / 5 of the width of the main board body 1 , and the length of the reinforcing boss 2 accounts for 1 / 3 to 2 / 5 of the length of the main board body 1 .

[0053] With this design, firstly, within the width ratio range, the strengthened boss 2 provides lateral support for the side wall, effectively disperses the forces in different directions acting on the side wall, reduces the risk of deformation of the mainboard body 1, and improves the structural stability and strength of the side wall.

[0054] Secondly, within the length ratio range, the strengthening boss 2 provides longitudinal support for the bearing installation area, ensuring the strength of the bearing part to withstand the operating pressure of the movable knife shaft, while avoiding excessive length affecting the structural layout of other parts of the main board body 1, so that the force in the length direction of the side wall is more uniform.

[0055] The height of the reinforcing boss 2 is h, which is 7 mm to 9 mm. Preferably, h is 8 mm.

[0056] With this design, the reinforcing boss 2 in the height range of 7mm-9mm can moderately strengthen the side wall. The reinforcing boss 2 of this height can better disperse stress, evenly transfer force to the main board body 1, reduce local stress concentration, and reduce the risk of cracks or fractures in the side wall. When the boss height is 8mm, a good balance can be achieved between strength and weight, which neither adds too much weight to affect the performance and energy consumption of the harvester nor provides sufficient strength support.

[0057] The cross section of the reinforcement groove 5 is an isosceles trapezoid, the bottom of the reinforcement groove 5 is a plane, the two side surfaces of the reinforcement groove 5 are inclined surfaces, and the corners of the reinforcement groove 5 are smooth transitions.

[0058] With this design, firstly, the isosceles trapezoidal shape enables the reinforcing groove 5 to disperse the force to a larger area when subjected to external force, thereby reducing local stress concentration and improving the strength and stability of the mainboard body 1.

[0059] Secondly, the bottom of the plane provides a stable foundation for the reinforcing groove 5, so that the reinforcing groove 5 is not easily deformed when subjected to pressure; at the same time, the bottom of the plane is also easy to process and manufacture, reducing production costs.

[0060] Again, the inclined side increases the depth and width of the reinforcing groove 5, thereby improving the bearing capacity of the reinforcing groove 5. During the operation of the harvester, the side wall will be affected by various forces, and the inclined side of the reinforcing groove 5 can better disperse these forces and reduce the deformation and damage of the main board body 1.

[0061] In addition, at the corners of the reinforcement groove 5 , stress concentration is easily generated due to the change in shape. The smooth transition design can effectively alleviate this stress concentration and extend the service life of the mainboard body 1 .

[0062] The angle between the bottom of the reinforcement groove 5 and the side of the reinforcement groove 5 is β, and β is 155°~165°. Preferably, β is 160°.

[0063] With this design, within the angle range of 155°-165°, the reinforced groove 5 can better disperse the stress. Therefore, when the harvester is working, the main board body 1 is subjected to force. This angle can disperse the force along the sides and bottom of the reinforced groove 5, reduce local stress concentration, and improve the overall strength and stability of the main board body 1; and this angle range makes the side of the reinforced groove 5 have a certain inclination, which can provide support without causing structural instability due to being too steep. The balance is best when the angle is 160°, and the reinforced groove 5 can maintain good stability when subjected to large forces.

[0064] The depth of the reinforcement groove 5 is consistent with the height of the reinforcement boss 2 .

[0065] With this design, the height consistency of the reinforcing boss 2 and the reinforcing groove 5 can make the rigidity of the mainboard body 1 in the vertical direction more balanced, thereby reducing deformation and damage caused by uneven local force.

[0066] According to installation requirements, a plurality of installation holes are opened on the main board body.

[0067] The number, position and size of the mounting holes can be opened by those skilled in the art according to installation requirements, and therefore will not be described in detail in this embodiment.

[0068] For ordinary technicians in this field, based on the teachings of this utility model, without departing from the principles and spirit of this utility model, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of this utility model.

Claims

1. A side wall structure for a harvester chopper, comprising two identical left and right walls, the left wall comprising a main board body (1), characterized in that: A reinforcing boss (2) is integrally stamped on the main body (1), a bearing hole (3) for mounting a bearing of a movable blade shaft of a chopper is stamped near the middle of the reinforcing boss (2), at least two connection holes (4) for passing bolts are evenly spaced along the outer periphery of the bearing hole (3) on the reinforcing boss (2), reinforcing grooves (5) are symmetrically stamped on both sides of the reinforcing boss (2) on the main body (1), the reinforcing boss (2) and the reinforcing groove (5) are stamped in opposite directions, and folding edges (6) are integrally stamped on all four sides of the main body (1), and the convex direction of the folding edge (6) is the same as the stamping direction of the reinforcing boss (2).

2. The side wall structure for a harvester chopper according to claim 1, characterized in that: The overall shape of the reinforcing boss (2) is a truncated cone shape, and the reinforcing boss (2) is integrally stamped and formed on the mainboard body (1).

3. The side wall structure for a harvester chopper according to claim 2, characterized in that: The reinforcing boss (2) and the bearing hole (3) are concentrically arranged.

4. The side wall structure for a harvester chopper according to claim 3, characterized in that: The cross section of the reinforcing boss (2) is an isosceles trapezoid, the table top of the reinforcing boss (2) is a plane, the two side surfaces of the reinforcing boss (2) are inclined surfaces, and the corners of the reinforcing boss (2) are smooth transitions.

5. The side wall structure for a harvester chopper according to claim 4, characterized in that: The included angle between the table surface of the reinforcing boss (2) and the side surface of the reinforcing boss (2) is α, and α is 130° to 140°.

6. The side wall structure for a harvester chopper according to claim 5, characterized in that: The width of the reinforcing boss (2) accounts for 1 / 2 to 3 / 5 of the width of the main board body (1), and the length of the reinforcing boss (2) accounts for 1 / 3 to 2 / 5 of the length of the main board body (1).

7. The side wall structure for a harvester chopper according to claim 6, characterized in that: The height of the reinforcing boss (2) is h, and h is 7 mm to 9 mm.

8. The side wall structure for a harvester chopper according to claim 7, characterized in that: The cross section of the reinforcing groove (5) is an isosceles trapezoid, the bottom of the reinforcing groove (5) is a plane, the two side surfaces of the reinforcing groove (5) are inclined surfaces, and the corners of the reinforcing groove (5) are smooth transitions.

9. The side wall structure for a harvester chopper according to claim 8, characterized in that: The angle between the bottom of the reinforcement groove (5) and the side of the reinforcement groove (5) is β, and β is 155°~165°.

10. The side wall structure for a harvester chopper according to claim 9, characterized in that: The depth of the reinforcement groove (5) is consistent with the height of the reinforcement boss (2).

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