CN117738260A - Connecting assembly of swing frame of land leveler and land leveler - Google Patents
Connecting assembly of swing frame of land leveler and land leveler Download PDFInfo
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- CN117738260A CN117738260A CN202410142416.0A CN202410142416A CN117738260A CN 117738260 A CN117738260 A CN 117738260A CN 202410142416 A CN202410142416 A CN 202410142416A CN 117738260 A CN117738260 A CN 117738260A
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- grader
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- 230000003014 reinforcing effect Effects 0.000 claims description 43
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims 4
- 238000005452 bending Methods 0.000 abstract description 13
- 230000007704 transition Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a land leveler swing frame connecting assembly and a land leveler, which are used for optimizing the structure of the land leveler swing frame connecting assembly; the land leveler rocker connecting assembly comprises a box structure, a first plate and a second plate. The box structure comprises a first box section, a second box section and a third box section, wherein the first box section comprises a first end and a second end; the second box section comprises a third end and a fourth end; the third box section comprises a fifth end and a sixth end, the second end and the third end are fixed together and are in smooth transition, and the fourth end and the fifth end are fixed together and are in smooth transition; the first plate has an open slot in which a first end of the first box section is secured. The second plate is provided with a mounting hole, and the first end of the first box section is fixed in the mounting hole; the first box section is provided with a first plate and a second plate which are arranged in parallel; the connecting assembly of the swing frame of the grader has light weight and high bending rigidity and strength.
Description
Technical Field
The invention discloses a land leveler rocker connecting assembly and a land leveler, and relates to the field of engineering machinery.
Background
The land leveler is a main machine for shaping and leveling operations in earthwork and is an important device in construction such as national defense engineering, mine construction, road construction, water conservancy construction, farmland improvement and the like. The grader has a wide range of auxiliary operating capabilities because its blade can perform 6 degrees of freedom motions in space. The swing frame connecting assembly structure is used as a main bearing structural member and is a key structural member for completing the actions, and the stability of the swing frame connecting assembly is directly related to the stability of the whole vehicle. Particularly, when the ditching and the slope scraping work, the swinging frame swings to the limit position, so that the shovel blade can reach 90 degrees of side standing, and the swinging frame connecting assembly structure receives great bending moment and torque. In recent years, the operation performance of the land leveller is continuously improved, the tonnage is continuously increased, the width of a shovel blade and the loaded load are correspondingly increased, potential safety hazards exist on the bending resistance and the torsion resistance of the swing frame connecting assembly structure, and the stability of the whole car is affected.
At present, most of swing frame connecting assembly structures used on the flat ground are welded into a box structure. Under severe working conditions, the swing frame bears a large bending moment, and is required to have large rigidity and strength, particularly bending-resistant rigidity, and in order to improve the rigidity and strength, the cross section of the main beam of the swing frame connecting assembly is usually enlarged or the thickness of the main beam is increased, so that the weight of the swing frame is heavy, and the lightweight design of the whole vehicle is influenced.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides the swing frame connecting assembly of the land leveler and the land leveler, and the problem of damage caused by stress concentration at key positions is solved by topological optimization of the shape, structural distribution and force transmission paths of connecting parts under the condition of not increasing the section size of the existing box-shaped structure and the thickness of a main beam, so that the whole structure is light in weight and long in service life.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a grader swing frame connection assembly comprising: the box structure, the box structure is including connecting gradually: the first box section, the second box section and the third box section; the first box section includes a first end and a second end; the second box section comprises a third end and a fourth end; the third box section comprises a fifth end and a sixth end, the second end and the third end are fixed together and are in smooth transition, and the fourth end and the fifth end are fixed together and are in smooth transition; the central axis of the first box section, the central axis of the second box section and the central axis of the third box section are collinear; the first plate and the second plate are arranged in parallel, a third reinforcing rib is arranged between the first plate and the second plate, and the third reinforcing rib is connected with the side wall of the second box section; a first reinforcing rib is arranged between the first box section and the second box section, and the third box section is connected with the rear end face of the second plate through the second reinforcing rib; the first reinforcing rib can effectively reduce the fatigue strength of the welding seam of the first box section and the second box section, the welding seam cracking is prevented, the second reinforcing rib connects the second plate and the third box section into a whole, the stress concentration condition of the second plate is reduced, the third reinforcing rib connects the first plate and the second plate into a whole, the integral strength of the second box section is enhanced, and the integral structural strength and the rigidity of the swing frame connecting assembly are improved through the reasonable distribution of the shapes and the structures of the three rib plates.
Further, a square hole is formed in the middle of the first plate, first open grooves are formed in four corners of the square hole, the outline of the outer side of the first plate is closed, the top end and the bottom end of the outline are parallel, the outline is horizontal to the ground, and symmetrical convex circular arcs are arranged on the left side and the right side of the outline; the first open slot is vertical to the ground; the top of first board is provided with two symmetrical first pilot holes, and first board is used for supporting the rocker and connects the assembly, promotes the rigidity of first board through the cooperation of closed outside profile, square hole and first open slot, prevents that first board from tearing.
Further, the periphery of the first box section protrudes out of the opening of the first opening groove, and the service life of the structure is prolonged.
Further, the top of the second plate is in a circular arc shape with two symmetrical convex protrusions, the left end face and the right end face of the second plate are parallel and perpendicular to the ground, and the bottom of the second plate is in a circular arc shape; the top end of the second plate is provided with two second assembly holes; five third assembly holes are formed in the bottom end of the second plate; the bottom of second board is provided with two second open slot, and the direction in second open slot forms the acute angle with the vertical direction in ground, and second open slot's shape and position have avoided the position that second box section both ends stress concentrate, promote the rigidity of second board, prevent that the second board from tearing.
Further, the third reinforcing rib is configured in a U shape, and is connected to both ends of the first plate and the second plate, respectively, and is fixed to a side wall of the second box section.
Further, the first reinforcing rib is provided with a front end face and a rear end face which are parallel, the bottom of the first reinforcing rib is an arc, and the lowest point of the arc is slightly lower than the front end face and the rear end face; the upper end face of the first reinforcing rib is fixed with the lower ends of the first box shape and the second box shape respectively, and the structural reinforcing rib can change stress distribution, so that the stress distribution is more uniform, and the stability of the whole structure is improved.
Further, two ends of the second reinforcing rib are respectively connected with the second plate and the third box section and are distributed in a bilateral symmetry mode.
Further, the second reinforcing rib comprises two reinforcing plates and a rib plate; the reinforcing plates are arranged in parallel up and down, and the top and bottom ends of the rib plates are respectively fixed with the reinforcing plates.
A land leveler comprises the land leveler swing frame connecting assembly.
The beneficial effects are that: the novel layout structure of the swing frame connecting assembly of the land leveler is formed by adopting a plurality of structural forms of flat plates and bending plates through topological optimization design, the structure is light in weight, has high bending rigidity and strength, can effectively solve the design contradiction between structural weight and structural rigidity and strength, is beneficial to the lightweight design of the swing frame connecting assembly of the land leveler, is beneficial to the reliability of the swing frame connecting assembly of the land leveler, and improves the operation safety and stability of the whole land leveler.
Drawings
FIG. 1 is a schematic perspective view of the present invention
FIG. 2 is a schematic diagram of a front view structure of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a cross-sectional view of the junction of a first plate and a first box section of the present invention;
FIG. 5 is a schematic view of the structure of a second plate of the present invention;
fig. 6 is a schematic perspective view of another view direction of the present invention.
Detailed Description
The implementation of the technical solution is described in further detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
1-3, a grader swing frame connection assembly, comprising: the box structure 1 comprises a first box section 11, a second box section 12 and a third box section 13; the first box section 11, the second box section 12 and the third box section 13 are fixed together; the second box section 12 is provided with a first plate 3 and a second plate 4, the first plate 3 and the second plate 4 are arranged in parallel, a third reinforcing rib 6 is arranged between the first plate 3 and the second plate 4, and the third reinforcing rib 6 is fixedly connected with the side wall of the second box section 12. The bottom ends of the first box section 11 and the second box section 12 are provided with first reinforcing ribs 2, and the third box section 13 is connected with the rear end surface of the second plate 4 through second reinforcing ribs 7; the swing frame connecting assembly of the grader has a box-shaped structure, so that the swing frame connecting assembly has high bending rigidity and strength; moreover, the first plate 3 and the second plate 4 both play a role in reinforcing the box structure 1, which further enhances the bending rigidity and strength of the grader swing frame connection assembly; in addition, the box-shaped structure 1 is hollow, the weight of the swing frame connecting assembly of the grader is light, and the product is light; even when the land leveler using the swing frame connecting assembly is used for ditching and scraping slopes, the swing frame swings to the limit position, and when the shovel blade is 90 degrees sideways, the swing frame connecting assembly can still bear bending moment and torque well. The swing frame connecting assembly of the land leveler, which is provided by the technical scheme, has good bending resistance and torsion resistance, can adapt to the requirements of continuous improvement of the working performance and continuous increase of tonnage of the land leveler, and ensures that the stability of the whole car is better.
As shown in fig. 4, the first plate 3 is configured such that an outer contour line is closed, a top end is parallel to a bottom end and is horizontal to the ground, and left and right sides have symmetrical convex circular arcs and smoothly transition.
A large square hole is arranged in the middle of the first plate 3, the square hole is provided with first open grooves 31 at four corners, and the first open grooves 31 are vertical to the ground.
The top of the first plate 3 is provided with two first fitting holes 32;
the peripheral frame of the first box section 11 protrudes out of the opening of the first opening slot 31.
As shown in fig. 5, the top of the second plate 4 is configured to have two symmetrical convex circular arcs, the two side faces of the second plate 4 are parallel, and the bottom of the second plate 4 is configured to have a circular arc shape.
The top end of the second plate 4 is provided with two second assembly holes 42; the bottom end of the second plate 4 is provided with five third fitting holes 43.
The bottom end of the second plate 4 is provided with two second open grooves 41, and the direction of the second open grooves 41 forms an acute angle with the vertical direction of the ground.
As shown in fig. 6, both ends of the third reinforcing rib 6 are connected to the first plate 3 and the second plate 4, respectively.
The third reinforcing ribs 6 are configured in a U shape, and the third reinforcing ribs 6 are connected to both ends of the first plate 3 and the second plate 4, respectively, and are fixed to the side walls of the second box section 12.
The first reinforcing rib 2 is configured to have front and rear two parallel end surfaces, the bottom is configured to be a large arc, and the lowest point of the arc is slightly lower than the front and rear two end surfaces. The upper ends of the first reinforcing ribs 2 are fixed to the lower ends of the first and second box-shaped boxes 11 and 12, respectively.
Two ends of the second reinforcing rib 7 are respectively connected with the second plate 4 and the third box section 13 and are distributed symmetrically left and right.
The second reinforcing rib 7 comprises two reinforcing plates 71 and a rib plate 72, the reinforcing plates 71 are arranged in parallel up and down, the top end and the bottom end of each rib plate 72 are respectively fixed with the reinforcing plates 71, and two ends of each reinforcing plate 71 are respectively connected to the side wall of the third box section 13 and the rear end face of the second plate 4.
The embodiment of the invention also provides a grader, which comprises the grader swing frame connecting assembly provided by any technical scheme.
The novel layout structure of the swing frame connecting assembly of the land leveler is formed by adopting a plurality of structural forms of flat plates and bending plates through topological optimization design, the structure is light in weight, has high bending rigidity and strength, can effectively solve the design contradiction between structural weight and structural rigidity and strength, is beneficial to the lightweight design of the swing frame connecting assembly of the land leveler, is beneficial to the reliability of the swing frame connecting assembly of the land leveler, and improves the operation safety and stability of the whole land leveler.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (9)
1. A grader swing frame connection assembly, comprising: the box structure (1), box structure (1) is including connecting gradually: a first box section (11), a second box section (12) and a third box section (13); the second box section (12) is provided with a first plate (3) and a second plate (4) which are arranged in parallel, a third reinforcing rib (6) is arranged between the first plate (3) and the second plate (4), and the third reinforcing rib (6) is connected with the side wall of the second box section (12); a first reinforcing rib (2) is arranged between the first box section (11) and the second box section (12), and the third box section (13) is connected with the rear end face of the second plate (4) through a second reinforcing rib (7).
2. The swing frame connecting assembly of the grader according to claim 1, wherein a square hole is formed in the middle of the first plate (3), first open grooves (31) are formed in four corners of the square hole, the outer side contour line of the first plate (3) is closed, the top end and the bottom end of the contour line are parallel, the contour line is horizontal to the ground, and symmetrical convex circular arcs are formed on the left side and the right side of the contour line; the first open slot (31) is vertical to the ground; the top of the first plate (3) is provided with two symmetrical first assembly holes (32).
3. The swing frame connecting assembly of the grader according to claim 1, wherein the periphery of the first box section (11) protrudes out of the opening of the first open slot (31).
4. The swing frame connecting assembly of the grader according to claim 1, wherein the top of the second plate (4) is in a shape of a circular arc with two symmetrical convex protrusions, the left end face and the right end face of the second plate (4) are parallel and perpendicular to the ground, and the bottom of the second plate (4) is in a shape of a circular arc; the top end of the second plate (4) is provided with two second assembly holes (42); five third assembly holes (43) are formed in the bottom end of the second plate (4); the bottom end of the second plate (4) is provided with two second open grooves (41), and the direction of the second open grooves (41) forms an acute angle with the vertical direction of the ground.
5. The grader rocker connection assembly according to claim 1, characterized in that the third stiffener (6) is configured as a U-shape, the third stiffener (6) being connected to both ends of the first plate (3) and the second plate (4), respectively, and being fixed to the side wall of the second box section.
6. The swing frame connecting assembly of the grader according to claim 1, wherein the first reinforcing rib (2) is provided with a front end face and a rear end face which are parallel, the bottom of the first reinforcing rib is an arc, and the lowest point of the arc is slightly lower than the front end face and the rear end face; the upper end face of the first reinforcing rib (2) is connected with the lower ends of the first box shape (11) and the second box shape (12) respectively.
7. The swing frame connecting assembly of the grader according to claim 1, wherein two ends of the second reinforcing rib (7) are respectively connected with the second plate (4) and the third box section (13) and are symmetrically distributed left and right.
8. The grader swing connection assembly of claim 7, wherein the second stiffener (7) includes two stiffeners (71) and one gusset (72); the reinforcing plates (71) are arranged in parallel up and down, and the top ends and the bottom ends of the rib plates (72) are respectively fixed with the reinforcing plates (71).
9. A grader characterized by comprising a grader rocker connection assembly as defined in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410142416.0A CN117738260A (en) | 2024-02-01 | 2024-02-01 | Connecting assembly of swing frame of land leveler and land leveler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410142416.0A CN117738260A (en) | 2024-02-01 | 2024-02-01 | Connecting assembly of swing frame of land leveler and land leveler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117738260A true CN117738260A (en) | 2024-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410142416.0A Pending CN117738260A (en) | 2024-02-01 | 2024-02-01 | Connecting assembly of swing frame of land leveler and land leveler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117738260A (en) |
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- 2024-02-01 CN CN202410142416.0A patent/CN117738260A/en active Pending
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