CN117738259A - Frame and grader before grader - Google Patents
Frame and grader before grader Download PDFInfo
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- CN117738259A CN117738259A CN202410142376.XA CN202410142376A CN117738259A CN 117738259 A CN117738259 A CN 117738259A CN 202410142376 A CN202410142376 A CN 202410142376A CN 117738259 A CN117738259 A CN 117738259A
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- plate
- grader
- saddle
- side plate
- suspension body
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- 239000000725 suspension Substances 0.000 claims abstract description 66
- 230000003014 reinforcing effect Effects 0.000 claims description 30
- 230000007704 transition Effects 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 2
- 238000005452 bending Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a front frame of a land leveler and the land leveler, which are of box-shaped structures and comprise a saddle, a front suspension body, a swing frame and a rear suspension body; the front end face of the saddle is aligned with the front end face of the front suspension body; an included angle is formed between the upper plane of the front suspension and the front end surface of the saddle frame and is 75-80 degrees; the downward U-shaped groove of the front suspension is clamped into the saddle; the upper plane of the rear suspension body is aligned with the upper plane of the front suspension; the groove of the swing frame is clamped into the rear suspension body upwards; the central axis of the swing frame is vertical to the lower plane of the rear suspension body; the central axes of the saddle, the front suspension body, the swing frame and the rear suspension body are overlapped and fixed together. The front frame of the grader with the structure has light weight and high bending rigidity and strength.
Description
Technical Field
The invention discloses a front frame of a grader, and relates to the field of engineering machinery.
Background
Important equipment in construction such as mountain construction, road construction, water conservancy construction and farmland improvement. The grader has a wide range of auxiliary operating capabilities because its blade can perform 6 degrees of freedom motions in space. The front frame is used as a main bearing structural member and is a key structural member for completing the actions, and the fatigue life of the front frame is directly related to the life of the whole vehicle. Particularly, during ditching and slope scraping operations, the swing frame swings to the limit position, so that the shovel blade can reach 90 degrees of side standing, and the front frame receives large 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, and the bending resistance and the torsion resistance of a front frame structure have potential safety hazards and influence the stability of the whole car.
At present, most front frames used on flat ground are of welded box-shaped structures, and the welding seams bear main loads. When the grader is used for ditching and scraping slopes, the front frame main body bears a large bending moment, and the front frame main body is required to have large rigidity and strength, in particular bending rigidity. The main beam section of the front frame is enlarged to improve the rigidity and strength of the front frame, so that the front frame is heavy and the lightweight design of the front frame is affected; the front frame structure in the shape of a box is a welded structure, and the plate thickness and the welding seam are required to be increased in size so as to improve the stability.
The inventors found that at least the following problems exist in the prior art: the existing land leveler is unreasonable in structural design of the front frame, and weak in rigidity and strength, so that the front frame main board is easy to tear during ditching and slope scraping operations of the land leveler, and the stability of the whole land leveler is affected. The rigidity and the strength of the reinforced structure are improved, but the weight is larger, which is not beneficial to the lightweight design of the front frame.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides the front frame of the land leveler and the land leveler, which solve the problem of damage caused by stress concentration at key positions by topological optimization of integral form, structural distribution, connection coordination and force transmission paths under the condition of not increasing the cross section and plate thickness size of the existing main beam, thereby realizing light weight and long service life of the integral structure.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a grader front frame comprising: the saddle comprises a saddle frame, a front suspension body, a swing frame and a rear suspension body, wherein the saddle frame, the front suspension body and the rear suspension body are spliced in sequence; the groove of the swing frame is clamped into the rear suspension body upwards, and the central axis of the swing frame is perpendicular to the lower plane of the rear suspension body; the front end face of the saddle is aligned with the front end face of the front suspension body, an acute angle is formed between the upper plane of the front suspension body and the front end face of the saddle, the angle is 75-80 degrees, the stress performance is improved, the downward U-shaped groove of the front suspension body is clamped into the saddle, the upper plane of the rear suspension body is aligned with the upper plane of the front suspension body, and the central axes of the saddle, the front suspension body, the swing frame and the rear suspension body coincide.
Further, the saddle comprises a first side plate, a plurality of first front axle supporting plates, a second front axle supporting plate, a hinged cover and a first reinforcing plate; the first side plates are symmetrically distributed along the central axis, the front axle supporting plates I and the front axle supporting plates II are parallelly distributed along the front-rear direction of the first side plates, and the first mounting holes at the lower ends of the front axle supporting plates and the second mounting holes at the lower ends of the front axle supporting plates II are coaxial; the front support plates are arranged on the inner side of the first side plate, the front axle support two protrudes out of the left end, the right end and the upper end of the first side plate, the front axle support two is provided with a hinged cover near the front suspension end, the upper ends of the front axle support plates are connected with the first reinforcing plate, the rear ends of the first reinforcing plate are fixed with the front axle support plates two, and the first reinforcing plate is arranged on the inner side of the first side plate; the first side plate has a front height dimension greater than a rear height dimension in a vertical direction.
Further, the front suspension includes: the second side plate, the upper wing plate and the lower wing plate; the second side plate is symmetrically distributed along the central axis, the upper wing plate and the lower wing plate are distributed on the upper side and the lower side of the second side plate in parallel, two sides of the second side plate protrude out of the two sides of the second side plate, a U-shaped groove with a downward opening is arranged on the second side plate, the front side size of the U-shaped groove is larger than the rear side size, and the U-shaped groove is used for being clamped into the saddle.
Further, the rear suspension body includes: the upper plate, the front side plate, the lower plate, the rear side plate, the vertical plate and the second reinforcing plate; the upper plate, the front side plate, the lower plate and the rear side plate enclose a box-shaped structure, and the box-shaped section is continuously enlarged from front to rear; the front side plate, the rear side plate and the second reinforcing plate are respectively connected in sequence along the central axis and are symmetrically distributed, and a vertical plate is arranged between the rear side plate and the second reinforcing plate; the front end and the rear end of upper plate and hypoplastron parallel arrangement respectively, the preceding terminal surface of posterior lateral plate is connected with the rear end face of preceding curb plate, the rear end face of posterior lateral plate is connected with the riser, the left and right both ends of riser outstanding posterior lateral plate and second reinforcing plate to be connected with upper plate and hypoplastron in the upper and lower direction, the rear end face of second reinforcing plate is arranged towards the axis slope, the rear end of upper plate is provided with the third mounting hole, the rear end of hypoplastron is provided with the fourth mounting hole.
Further, the rear end of the upper plate is provided with a convex circle with a third mounting hole in the center, two ends of the convex circle are in smooth transition with two sides of the upper plate, two bends are arranged in the length direction of the upper plate, and the width direction of the upper plate is provided with four protrusions along the central axis;
the rear end of the lower plate is provided with a convex circle taking the fourth mounting hole as the center, the two ends of the convex circle are in smooth transition with the two sides of the lower plate, the length direction of the lower plate is provided with two bends, and the width direction of the lower plate is provided with four protrusions along the central axis.
Further, the upper part and the lower part of the front side plate are provided with large circular arcs, and the front end size is smaller than the rear end size in the vertical direction; the rear side plate is bent at two positions, and the front end size of the rear side plate is smaller than the rear end size in the vertical direction.
Further, the rear end of the reinforcing plate is provided with a large arc structure with a dovetail shape.
Further, the axis of the first mounting hole is perpendicular to the axis of the second mounting hole.
Further, the upper dimension of the swing frame is larger than the lower dimension, the groove arranged in the middle of the swing frame is symmetrical along the center, and the bottoms of the grooves extend to two sides; the upper part of the swing frame is symmetrically provided with two fifth mounting holes, and the lower part of the swing frame is provided with a fifth mounting hole.
A grader is connected with the front frame of the grader.
The beneficial effects are that: the front frame of the grader adopts a box-shaped structure, the central axes of a saddle frame, a front suspension body, a swing frame and a rear suspension body are coincident, the structure is completely different from the existing front frame structure, and the novel layout of the front frame of the grader is formed through topological optimization design; according to the invention, through the topological optimization design, each connecting part is related in the optimal posture and structural form, the structure is light in weight, has high bending rigidity and strength, can effectively solve the design contradiction between the structural weight and the structural rigidity and strength, is beneficial to the lightweight design of the front frame of the grader, is beneficial to the reliability of the front frame of the grader, and improves the operation safety and stability of the whole grader.
Drawings
FIG. 1 is a schematic diagram of a front frame of a grader in a grader working condition;
FIG. 2 is a schematic top view of a grader with a front frame in a grader working condition;
FIG. 3 is a schematic view of a saddle in a perspective view according to the present invention;
FIG. 4 is a schematic view of another view of the saddle of the present invention;
FIG. 5 is a schematic plan view of a front suspension of the present invention;
FIG. 6 is a left side view of a front suspension according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of a front suspension of the present invention;
FIG. 8 is a schematic plan view of a swing frame according to the present invention;
fig. 9 is a schematic perspective view of a rear suspension body according to 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.
1-2, the present embodiment provides a front frame of a grader, including: the saddle comprises a saddle 1, a front suspension body 2, a swing frame 3 and a rear suspension body 4, wherein the saddle 1, the front suspension body 2 and the rear suspension body 4 are spliced in sequence; the front end face of the saddle 1 is aligned with the front end face of the front suspension body 2, an included angle a of 75-80 degrees is formed between the upper plane of the front suspension body 2 and the front end face of the saddle 1, a downward U-shaped groove of the front suspension body 2 is clamped into the saddle 1, the upper plane of the rear suspension body 4 is aligned with the upper plane of the front suspension body 2, a groove of the swing frame 3 is clamped into the rear suspension body 4 upwards, the central axis of the swing frame 3 is perpendicular to the lower plane of the rear suspension body 4, and the central axes of the saddle 1, the front suspension body 2, the swing frame 3 and the rear suspension body 4 coincide; the axis c of the third mounting hole 411 at the rear part of the rear suspension body is vertical to the axis b of the first mounting hole 121 of the saddle;
the main body structure of the front frame of the grader is a box-shaped body, has high bending rigidity and strength, and the swing frame 3 plays a role in reinforcing the box-shaped structure, so that the bending rigidity and strength of the front frame of the grader are further reinforced; because the box structure is hollow, the front frame of the grader has light weight, thus realizing the light weight of the product; the front frame of the grader has good bending resistance and torsion resistance, can meet the requirements of continuously improving the operation performance and increasing the tonnage of the grader, and ensures that the stability of the whole grader is better.
As shown in fig. 3 to 4, the saddle 1 has a box structure, and the saddle 1 includes a first side plate 11, a plurality of first front axle supporting plates 12, a second front axle supporting plate 13, a hinge cover 14 and a first reinforcing plate 15; the first side plates 11 are symmetrically distributed along the central axis, a plurality of first front axle supporting plates 12 and second front axle supporting plates 13 are parallelly distributed along the front-rear direction of the first side plates 11, and a plurality of first mounting holes 121 at the lower ends of the first front axle supporting plates 12 are coaxial with second mounting holes 131 at the lower ends of the second front axle supporting plates; the front support plates I12 are arranged on the inner side of the first side plate 11, the front axle supports II 13 protrude out of the left end, the right end and the upper end of the first side plate 11, the front axle supports II 13 are provided with hinge covers 14 near the front suspension 2 end, the upper ends of the front axle support plates I12 are connected with first reinforcing plates 15, the rear ends of the first reinforcing plates 15 are fixed with the front axle support plates II 13, and the first reinforcing plates 15 are arranged on the inner side of the first side plate 11; the first side plate 11 has a front side height dimension larger than a rear side height dimension in the vertical direction.
As shown in fig. 3 to 4, the first reinforcing plate 15 has a lightening hole, and the lightening hole may have any shape such as a circle, an ellipse, or a square.
As shown in fig. 5 to 7, the front suspension 2 includes: a second side plate 21, an upper wing plate 23, and a lower wing plate 22; the second side plates 21 are symmetrically distributed along the central axis, the upper wing plates 23 and the lower wing plates 22 are vertically and parallelly distributed, two sides of the second side plates 21 protrude out of two sides, a U-shaped groove with a downward opening is formed in each second side plate 21, and the front side size of each U-shaped groove is larger than the rear side size.
As shown in fig. 7, the upper wing plate 23 has a lightening hole, and the lightening hole may have any shape such as a circle, an ellipse, a square, etc.
As shown in fig. 8, the upper dimension of the swing frame 3 is larger than the lower dimension, the groove arranged in the middle of the swing frame 3 is symmetrical along the center, and the bottoms of the grooves extend to two sides; two fourth mounting holes 31 are symmetrically formed in the upper portion of the swing frame 3, and one fourth mounting hole 31 is formed in the lower portion of the swing frame; the grooves of the swing frame 3 are symmetrical along the center, and the upper width dimension is smaller than the lower width dimension.
As shown in fig. 9, the rear suspension body 4 includes: an upper plate 41, a front side plate 42, a lower plate 43, a rear side plate 44, a vertical plate 45, and a second reinforcing plate 46; the upper plate 41, the front side plate 42, the lower plate 43 and the rear side plate 44 enclose a box-shaped structure, and the box-shaped section from front to rear is continuously enlarged; the front side plate 42, the rear side plate 44 and the second reinforcing plate 46 are respectively connected in sequence along the central axis and are symmetrically distributed, and a vertical plate 45 is arranged between the rear side plate 44 and the second reinforcing plate 46; the front ends and the rear ends of the upper plate 41 and the lower plate 43 are respectively arranged in parallel, the front end surface of the rear plate 44 is connected with the rear end surface of the front plate 42, the rear end surface of the rear plate 44 is connected with the vertical plate 45, the left and right ends of the vertical plate 45 protrude out of the rear plate 44 and the second reinforcing plate 46 and are connected with the upper plate 41 and the lower plate 43 in the vertical direction, the rear end surface of the second reinforcing plate 46 is obliquely arranged towards the central axis, and the third mounting hole 411 of the rear end of the upper plate is coaxial with the fourth mounting hole 431 of the rear end of the lower plate.
A convex circle with a third mounting hole 411 as the center is arranged at the rear end of the upper plate 41, two ends of the convex circle are in smooth transition with two sides of the upper plate 41, two bends are arranged at the upper plate 41, and four widths are arranged to protrude along the central axis;
the rear end of the lower plate 43 is provided with a convex circle taking the fourth mounting hole 431 as the center, the two ends of the convex circle smoothly transition with the two sides of the lower plate, the lower plate 43 is provided with two bends, and the two widths are protruded along the central axis.
The axis of the first mounting hole 16 is perpendicular to the axis of the third mounting hole 48.
The upper plate 41 is provided with a lightening hole, and the lightening hole may have any shape such as a circle, an ellipse, a square, etc.
The front side plate 42 is configured to have a shape having a large circular arc at upper and lower sides and a front end dimension smaller than a rear end dimension in a vertical direction.
The rear side plate 44 is configured to have a shape having two folds, and a front dimension smaller than a rear dimension in a vertical direction.
As shown in fig. 8, the vertical plate 45 has a lightening hole, and the lightening hole may have any shape such as a circle, an ellipse, a square, etc.; the reinforcing plate 46 is constructed in a large arc structure having two dovetail shapes at the rear end.
According to the invention, through the topological optimization design, each connecting part is related in the optimal posture and structural form, the structure is light in weight, has high bending rigidity and strength, can effectively solve the design contradiction between the structural weight and the structural rigidity and strength, is beneficial to the lightweight design of the front frame of the grader, is beneficial to the reliability of the front frame of the grader, and improves the operation safety and stability of the whole grader.
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 (10)
1. A grader front frame, comprising: the saddle comprises a saddle (1), a front suspension body (2), a swing frame (3) and a rear suspension body (4), wherein the saddle (1), the front suspension body (2) and the rear suspension body (4) are spliced in sequence; the groove of the swing frame (3) is clamped into the rear suspension body (4) upwards, and the central axis of the swing frame (3) is perpendicular to the lower plane of the rear suspension body (4); the front end face of the saddle (1) is aligned with the front end face of the front suspension body (2), an acute angle is formed between the upper plane of the front suspension (2) and the front end face of the saddle (1), the downward U-shaped groove of the front suspension (2) is clamped into the saddle (1), and the upper plane of the rear suspension body (4) is aligned with the upper plane of the front suspension (2).
2. The grader front frame according to claim 1, characterized in that the saddle (1) comprises a first side plate (11), a number of front axle support plates one (12), a front axle support plate two (13), a hinge cover (14) and a first reinforcement plate (15); the first side plates (11) are symmetrically distributed along the central axis of the saddle (1), a plurality of first front axle supporting plates (12) and second front axle supporting plates (13) are distributed in parallel along the front-back direction of the first side plates (11), and first mounting holes (121) at the lower ends of the first front axle supporting plates (12) are coaxial with second mounting holes (131) at the lower ends of the second front axle supporting plates (13); the front support plates I (12) are arranged on the inner side of the first side plate (11), the front axle support II (13) protrudes from the left end, the right end and the upper end of the first side plate (11), the front axle support II (13) is near the front suspension (2) end and provided with a hinged cover (14), the upper ends of the front axle support plates I (12) are connected with a first reinforcing plate (15), the rear ends of the first reinforcing plate (15) are fixedly connected with the front axle support plates II (13), and the first reinforcing plate (15) is arranged on the inner side of the first side plate (11); the front end height dimension of the first side plate (11) is larger than the rear end height dimension in the vertical direction.
3. The grader front frame according to claim 1, characterized in that the front suspension (2) comprises: a second side plate (21), an upper wing plate (23), and a lower wing plate (22); the second side plates (21) are symmetrically distributed along the central axis of the front suspension (2), the upper wing plates (23) and the lower wing plates (22) are distributed on the upper side and the lower side of the second side plates (21) in parallel, two sides of the second side plates (21) protrude out of the two sides, a U-shaped groove with a downward opening is formed in each second side plate (21), and the front side size of each U-shaped groove is larger than the rear side size.
4. The grader front frame according to claim 1, characterized in that the rear suspension (4) comprises: an upper plate (41), a front side plate (42), a lower plate (43), a rear side plate (44), a vertical plate (45) and a second reinforcing plate (46); the upper plate (41), the front side plate (42), the lower plate (43) and the rear side plate (44) are enclosed into a box-shaped structure, and the box-shaped section from front to rear is continuously enlarged; the front side plate (42), the rear side plate (44) and the second reinforcing plate (46) are respectively connected in sequence along the central axis and are symmetrically distributed, and a vertical plate (45) is arranged between the rear side plate (44) and the second reinforcing plate (46); the front end and the rear end of upper plate (41) and hypoplastron (43) are parallel arrangement respectively, the preceding terminal surface of posterior lateral plate (44) is connected with the rear end face of preceding curb plate (42), the rear end face of posterior lateral plate (44) is connected with riser (45), the left and right both ends of riser (45) outstanding posterior lateral plate (44) and second reinforcing plate (46) to be connected with upper plate (41) and hypoplastron (43) in upper and lower direction, the rear end face of second reinforcing plate (46) is arranged towards the axis slope, the rear end of upper plate (41) is provided with third mounting hole (411), the rear end of hypoplastron (43) is provided with fourth mounting hole (431).
5. The grader front frame according to claim 4, wherein a convex circle centering on a third mounting hole (411) is provided at the rear end of the upper plate (41), both ends of the convex circle smoothly transition with both sides of the upper plate (41), two bends are provided in the length direction of the upper plate (41), and four protrusions along the central axis are provided in the width direction of the upper plate (41);
the rear end of the lower plate (43) is provided with a convex circle taking a fourth mounting hole (431) as the center, two ends of the convex circle are in smooth transition with two sides of the lower plate, two bends are arranged in the length direction of the lower plate (43), and the width direction of the lower plate (43) is provided with protrusions along the central axis everywhere.
6. The grader front frame according to claim 4, wherein the front side plate (42) has a large arc at the upper and lower sides, and a front end dimension is smaller than a rear end dimension in a vertical direction;
the rear side plate (44) is bent at two positions, and the front end size of the rear side plate is smaller than the rear end size in the vertical direction.
7. The grader front frame according to claim 4, characterized in that the rear end of the reinforcement plate (46) is provided with a dovetail-shaped large arc structure.
8. The grader front frame according to claim 5, wherein the axis (121) of the saddle first mounting hole is perpendicular to the axis of the rear suspension third mounting hole (411).
9. The grader front frame according to claim 1, characterized in that the upper dimension of the rocker (3) is larger than the lower dimension, the groove arranged in the middle of the rocker (3) is symmetrical along the center, and the bottom of the groove extends to two sides; two fifth mounting holes (31) are symmetrically formed in the upper portion of the swing frame (3), and one fifth mounting hole (31) is formed in the lower portion of the swing frame.
10. A grader comprising a grader front frame according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410142376.XA CN117738259A (en) | 2024-02-01 | 2024-02-01 | Frame and grader before grader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410142376.XA CN117738259A (en) | 2024-02-01 | 2024-02-01 | Frame and grader before grader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117738259A true CN117738259A (en) | 2024-03-22 |
Family
ID=90254822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410142376.XA Pending CN117738259A (en) | 2024-02-01 | 2024-02-01 | Frame and grader before grader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117738259A (en) |
-
2024
- 2024-02-01 CN CN202410142376.XA patent/CN117738259A/en active Pending
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