CN114475121A - Leaf spring supporting structure - Google Patents
Leaf spring supporting structure Download PDFInfo
- Publication number
- CN114475121A CN114475121A CN202210285767.8A CN202210285767A CN114475121A CN 114475121 A CN114475121 A CN 114475121A CN 202210285767 A CN202210285767 A CN 202210285767A CN 114475121 A CN114475121 A CN 114475121A
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- Prior art keywords
- bottom plate
- plate
- leaf spring
- wall
- pin hole
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- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 238000005452 bending Methods 0.000 description 7
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a plate spring support structure which comprises a bottom plate fixedly connected with the bottom surface of a frame, wherein one side of the bottom plate is provided with a side plate fixedly connected with the side surface of the frame, the middle of the bottom plate is provided with a lifting lug, the lifting lug is provided with a pin hole connected with the end part of a plate spring, the middle part of the bottom plate is disconnected, and the middle part of the bottom plate obliquely extends downwards along the disconnected edge to be connected with the pin hole wall to form a groove structure, and the groove structure comprises a first side wall and a second side wall which are used for connecting the bottom plate and the pin hole wall, and a groove bottom formed by partial pin hole walls. Preferably, the first side wall and the second arm are symmetrically arranged. The middle part of the bottom plate is broken and bent downwards to extend to form the first side wall and the second side wall to connect the bottom plate and the lifting lugs, so that the structural design of the support is simple and ingenious, redundant materials are removed, the lightweight design of the support is realized, and poor casting caused by the thicker connection part of the bottom plate and the lifting lugs is avoided.
Description
Technical Field
The invention relates to the technical field of supports, in particular to a plate spring support structure.
Background
The plate spring support is an important part for supporting a plate spring on an automobile and bears huge alternating load under the condition of automobile operation. Usually, the leaf spring support is cast and accomplished, and the place thickness that contacts at bottom plate and lug is great, produces casting defects such as gas pocket, loose easily, even in the mould forming process, because the middle part is heated unevenly, leads to stress concentration, the fracture in the use.
Disclosure of Invention
The invention aims to solve the technical problem of providing a plate spring support structure, wherein the whole support structure is designed in a light weight mode, the thickness distribution is uniform, and the casting qualification rate is high.
In order to solve the technical problem, the invention provides a plate spring support structure which comprises a bottom plate fixedly connected with the bottom surface of a vehicle frame, wherein one side of the bottom plate is provided with a side plate fixedly connected with the side surface of the vehicle frame, the middle of the bottom plate is provided with a lifting lug, the lifting lug is provided with a pin hole connected with the end part of a plate spring, the middle part of the bottom plate is disconnected, and the lifting lug extends downwards along the disconnected edge obliquely to be connected with the wall of the pin hole to form a groove structure, and the groove structure comprises a first side wall and a second side wall which are used for connecting the bottom plate with the wall of the pin hole, and a groove bottom formed by part of the wall of the pin hole. Preferably, the first side wall and the second arm are symmetrically arranged.
In above-mentioned leaf spring supporting structure, through the middle part disconnection downwarping extension with the bottom plate, form first lateral wall and second lateral wall connection bottom plate and lug to make the structural design of support simple ingenious, not only remove unnecessary material, realize the lightweight design to the support, avoid moreover because the junction of bottom plate, lug is thick and the casting that causes is bad.
As an improvement of the plate spring support structure of the present invention, the first side wall has the same thickness as the pin hole wall or the base plate. Preferably, the second sidewall is the same thickness as the first sidewall. The thickness of the first side wall and the second side wall is designed to be consistent with the thickness of the surrounding plate, so that the design of a casting mold is convenient, and the bad casting phenomenon in the casting process is further effectively prevented.
As a further development of the leaf spring support structure according to the invention, the acute angle between the first side wall and the plane of the base plate is 40 ° to 50 °, preferably 45 °.
As a further improvement of the leaf spring support structure of the present invention, a stress concentration hole is provided at a position of the concave cavity of the side plate corresponding to the groove structure. The stress concentration holes can prevent stress concentration and cracking in the use process due to uneven heating of the middle part in the molding process of the casting mold.
As a further improvement of the plate spring support structure, the connecting part of the top surface of the bottom plate and the side plate is in arc slope transition. At the position of bending that bottom plate and curb plate meet, at the mould drawing of patterns in-process, because the relative position with mounting hole on the bottom plate is compacter, the easy drawing of patterns is bad, adopts the domatic transition of circular arc, can effectively avoid the department of bending, corner because angle or boundary problem lead to the bad outward appearance in the drawing of patterns in-process, the drawing of patterns of being convenient for. Preferably, the bending part is designed to be an arc transition slope surface of R20mm, so that the mold stripping is facilitated.
As a further improvement of the leaf spring support structure of the present invention, the lifting lug is a cylindrical shape formed by the pin hole walls, and a main body of the lifting lug is horizontally arranged at the bottom of the bottom plate, and one end of the lifting lug extends to the outer side of the side plate.
Furthermore, the bottom of the side plate extends downwards to the bottom of the bottom plate, two sides of the side plate are close to the pin hole wall, and first reinforcing ribs perpendicular to the axis of the pin hole are formed on two sides of the pin hole.
The pin hole arm passes the bottom of curb plate, forms first strengthening rib structure in the both sides of pin hole arm promptly, increases the structural strength of support.
To sum up, adopt above-mentioned leaf spring supporting structure, carry out lightweight design to original structure, only satisfy requirements such as actual bearing, installation, life-span, also can effectively avoid casting bad phenomenon. In addition, the structure is convenient for demoulding of the die, the problem that the appearance is poor in the demoulding process due to the angle or the boundary at the corner of the bending part is avoided, the structure is suitable for mass production, the demoulding qualification rate is improved, and the cost is reduced.
Drawings
In the drawings:
fig. 1 is a perspective view of the leaf spring support structure of the present invention.
Figure 2 is a perspective view of the leaf spring support structure of the present invention from another perspective.
Figure 3 is a view of the leaf spring support structure of the present invention from a vertical side plate angle.
In the figure, 1, a bottom plate; 2. a side plate; 3. lifting lugs; 4. a pin hole; 5. a first side wall; 6. a second side wall; 7. side mounting holes; 8. a boss; 9. a stress concentrating hole; 10. a first reinforcing rib; 11. and a second reinforcing rib.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
Example 1
Fig. 1-3 illustrate a leaf spring support structure of the present invention. As shown in fig. 1, the plate spring support structure comprises a bottom plate 1 fixedly connected with the bottom surface of a vehicle frame, a side plate 2 fixedly connected with the side surface of the vehicle frame is arranged on one side of the bottom plate 1, a lifting lug 3 is arranged in the middle of the bottom plate 1, a pin hole 4 connected with the end part of a plate spring is arranged on the lifting lug 3, the middle part of the bottom plate 1 is disconnected, and the bottom plate extends downwards obliquely along the disconnected edge to be connected with the wall of the pin hole 4 to form a groove structure, and the groove structure comprises a first side wall 5 and a second side wall 6 which are used for connecting the bottom plate 1 with the wall of the pin hole 4, and a groove bottom formed by partial wall of the pin hole 4.
During the use, pass through rivet fastening with bottom plate 1 and frame bottom surface, also pass through rivet fastening with curb plate 2 and frame side, match the installation through the round pin axle with the tip of leaf spring in the pinhole 4 of lug 3, in the vehicle driving process, mainly receive vertical support strength, under the special circumstances, also receive the road and uneven and the horizontal impact force that arouses. The groove structure not only saves materials and realizes light weight design, but also reduces poor casting and prevents component interference.
As shown in fig. 3, in order to make the structure of the plate spring support simpler and to make the load-bearing capacity stronger, the first side wall and the second arm are symmetrically arranged along the central plane of the vertical side plate 2, and the casting mold is also easily designed. The thickness of the first side wall 5 is the same as that of the pin hole 4 or the bottom plate 1 and is 10mm, so that the wall thickness of the whole bracket is basically consistent, no thickness difference exists, and the bad casting phenomenon in the casting process is further effectively prevented. In addition, the acute angle between the first side wall 5 and the plane of the base plate 1 is 40-50, preferably 45.
As shown in fig. 2, stress concentration holes 9 are provided at the positions of the cavities of the side plates 2 corresponding to the groove structures. The stress concentration holes 9 can prevent stress concentration and cracking in the use process due to uneven heating of the middle part in the casting mold forming process.
As shown in fig. 1, two ends of the top of the side plate 2 are respectively provided with a side mounting hole 7, and a boss 8 is arranged on one side of the mounting surface of the side mounting hole 7. Under the condition of meeting the bearing stress, the structure of the boss 8 ensures the precision of the mounting surface, and the connection part is designed in a targeted light weight manner.
The top surface of the bottom plate 1 is in arc slope transition with the connecting part of the side plate 2. At the position of bending that bottom plate 1 and curb plate 2 meet, because with the relative position of mounting hole compacter on bottom plate 1, it is bad to demold easily at the mould drawing of patterns in-process, and the domatic transition of circular arc can be convenient for the mould drawing of patterns, avoids because department of bending, corner are because angle or boundary problem lead to the outward appearance bad in the drawing of patterns in-process. Preferably, the bending part is designed to be an arc transition surface of R20mm, so that the mold is convenient to demould.
As shown in fig. 2 and 3, the shackle 3 is cylindrical and is formed by the walls of the pin hole 4, and the main body of the shackle 3 is horizontally arranged at the bottom of the bottom plate 1, and one end of the shackle protrudes to the outside of the side plate 2. Preferably, the bottom of the side plate 2 extends downwards to the bottom of the bottom plate 1, and the two sides are close to the wall of the pin hole 4, and first reinforcing ribs 10 vertical to the axis of the pin hole 4 are formed on the two sides of the pin hole 4 and are triangular when viewed from the side. After the frame side is connected to whole curb plate 2, directly support and the side is strengthened lug 3, improve the intensity of whole structure, prevent to bear the weight of the in-process and arouse the fracture risk because of fatigue effect. Preferably, the thickness of the first reinforcing bead 10 is 7.5 mm.
In addition, the side surface of the side plate 2 is provided with a second reinforcing rib 11 arranged along the axial direction of the pin hole 4, thereby further enhancing the structural strength.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the scope of protection thereof, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: after reading this disclosure, those skilled in the art will be able to make various changes, modifications and equivalents to the embodiments of the invention, which fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a leaf spring supporting structure, includes bottom plate (1) with frame bottom surface fixed connection, one side of bottom plate (1) be equipped with frame side fixed connection's curb plate (2), be equipped with lug (3) in the middle of the bottom of bottom plate (1), be provided with pinhole (4) with leaf spring end connection on lug (3), its characterized in that, the middle part disconnection of bottom plate (1), and along the limit slant downwardly extending of disconnection with pinhole (4) wall connection forms groove structure, groove structure is including connecting bottom plate (1) with first lateral wall (5) and second lateral wall (6) of pinhole (4) wall, and by the part the tank bottom that pinhole (4) wall constitutes.
2. A leaf spring support structure according to claim 1, characterised in that the first side wall (5) is of the same thickness as the wall of the pin hole (4) or the base plate (1).
3. A leaf spring support structure according to claim 1, characterised in that the acute angle between the first side wall (5) and the plane of the base plate (1) is 40 ° -50 °.
4. A leaf spring support structure according to claim 1, wherein both ends of the top of the side plate (2) are respectively provided with a side mounting hole (7), and a boss (8) is arranged on one side of the mounting surface of the side mounting hole (7).
5. A leaf spring support structure according to claim 1, characterised in that stress concentration holes (9) are provided in the side plates (2) at positions corresponding to the recesses of the groove structures.
6. The leaf spring support structure according to claim 1, characterized in that the top edge of the side plate (2) is shaped like a circular arc which is concave downwards.
7. A leaf spring support structure according to claim 1, characterized in that the junction of the top surface of the bottom plate (1) and the side plate (2) is in a circular arc slope transition.
8. A leaf spring support structure according to claim 1, characterized in that the lifting lug (3) is cylindrical and is formed by the wall of the pin hole (4), and the body of the lifting lug (3) is horizontally arranged at the bottom of the bottom plate (1) and one end of the lifting lug extends out of the side plate (2).
9. The leaf spring support structure according to claim 8, wherein the bottom of the side plate (2) extends downwards to the bottom of the bottom plate (1), and the two sides are close to the wall of the pin hole (4), and first reinforcing ribs (10) perpendicular to the axis of the pin hole (4) are formed on the two sides of the pin hole (4).
10. A leaf spring support structure according to claim 8, characterised in that the side of the side plate (2) is provided with second ribs (11) arranged in the axial direction of the pin hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210285767.8A CN114475121A (en) | 2022-03-22 | 2022-03-22 | Leaf spring supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210285767.8A CN114475121A (en) | 2022-03-22 | 2022-03-22 | Leaf spring supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114475121A true CN114475121A (en) | 2022-05-13 |
Family
ID=81487493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210285767.8A Pending CN114475121A (en) | 2022-03-22 | 2022-03-22 | Leaf spring supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114475121A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6209897B1 (en) * | 1999-07-15 | 2001-04-03 | Paccar Inc | Apparatus and method for mounting a suspension system |
| KR20140038751A (en) * | 2012-09-21 | 2014-03-31 | 에스피테크(유) | Spring hanger bracket for commerical vehicle and manufacturing method of the same |
| CN105398303A (en) * | 2014-09-15 | 2016-03-16 | 中国重汽集团济南动力有限公司 | Back support for truck plate spring suspension |
| CN205185769U (en) * | 2015-12-14 | 2016-04-27 | 安徽江淮汽车股份有限公司 | Leaf spring lug support and mounting structure thereof |
| CN107776351A (en) * | 2016-08-25 | 2018-03-09 | 青岛润成车辆配件有限公司 | A kind of flat spring bracket |
| CN212667053U (en) * | 2020-07-29 | 2021-03-09 | 日照龙山精密机械制造有限公司 | Light truck front plate spring rear lifting lug |
-
2022
- 2022-03-22 CN CN202210285767.8A patent/CN114475121A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6209897B1 (en) * | 1999-07-15 | 2001-04-03 | Paccar Inc | Apparatus and method for mounting a suspension system |
| KR20140038751A (en) * | 2012-09-21 | 2014-03-31 | 에스피테크(유) | Spring hanger bracket for commerical vehicle and manufacturing method of the same |
| CN105398303A (en) * | 2014-09-15 | 2016-03-16 | 中国重汽集团济南动力有限公司 | Back support for truck plate spring suspension |
| CN205185769U (en) * | 2015-12-14 | 2016-04-27 | 安徽江淮汽车股份有限公司 | Leaf spring lug support and mounting structure thereof |
| CN107776351A (en) * | 2016-08-25 | 2018-03-09 | 青岛润成车辆配件有限公司 | A kind of flat spring bracket |
| CN212667053U (en) * | 2020-07-29 | 2021-03-09 | 日照龙山精密机械制造有限公司 | Light truck front plate spring rear lifting lug |
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Application publication date: 20220513 |
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| RJ01 | Rejection of invention patent application after publication |