CN218228554U - Plate spring suspension assembly of trailer - Google Patents
Plate spring suspension assembly of trailer Download PDFInfo
- Publication number
- CN218228554U CN218228554U CN202221777072.3U CN202221777072U CN218228554U CN 218228554 U CN218228554 U CN 218228554U CN 202221777072 U CN202221777072 U CN 202221777072U CN 218228554 U CN218228554 U CN 218228554U
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- trailer
- plate spring
- axle
- wall
- upper support
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Abstract
The plate spring suspension assembly of the trailer comprises two brackets, a plate spring component, an upper support, a lower support, an axle, a connecting rod and two U-shaped bolts; the two brackets are both fixed on the frame of the trailer; the plate spring assembly comprises a plurality of steel plates; the upper support is arranged above the upper surface of the plate spring assembly, the axle is arranged above the upper support, the lower support comprises a bottom plate and two side walls, and the tops of the side walls are provided with connecting walls extending outwards; the two U-shaped bolts are respectively arranged on two sides of the plate spring assembly and comprise two screw rods and a pressing section, the two U-shaped bolts respectively correspond to the two side walls, the two screw rods of the U-shaped bolts downwards penetrate through the connecting wall of the side walls, and a locking nut pressed on the lower surface of the connecting wall is screwed on the part of the screw rods penetrating through the connecting wall; one end of the connecting rod is hinged on the upper support, and the other end of the connecting rod is hinged on one of the brackets. The utility model discloses it leads to cracked risk because of the atress is great to avoid the screw rod to the security of trailer has been improved.
Description
Technical Field
The utility model relates to the technical field of vehicles, concretely relates to leaf spring suspension assembly of trailer.
Background
The existing leaf spring suspension generally comprises a leaf spring assembly, two supports and an axle, wherein the two supports are welded on a frame of the trailer, the leaf spring assembly comprises a plurality of steel sheets which are arranged in a stacked mode, the middle parts of the steel sheets in the length direction are connected together through a bolt penetrating through the steel sheets, two ends of the leaf spring assembly are connected to the two supports in a penetrating mode respectively, the axle is fixed to the middle part of the leaf spring assembly through two U-shaped bolts, specifically, a lower support is arranged below the leaf spring assembly, an upper support is arranged above the leaf spring assembly, the axle is arranged on the upper support, the two U-shaped bolts are located on two sides of the leaf spring assembly respectively, the two screw portions of the U-shaped bolts extend downwards to penetrate through the lower support, an arc section between the two screw portions on the U-shaped bolts is pressed on the axle, nuts are screwed on the screw portions penetrating through the lower support on the screw portions, the nuts are screwed tightly to tighten the U-shaped bolts to enable the U-shaped bolts to press the axle downwards, and accordingly the axle, the upper support, the leaf spring assembly and the lower support are fixed together. In the running process of the trailer, due to frequent vibration of the plate spring assembly, transverse relative displacement is generated between the adjacent steel sheets, the transversely moving steel sheets can cut the bolts and the U-shaped bolts for connecting the steel sheets, the screw rods of the U-shaped bolts bear large transverse stress, the screw rods of the U-shaped bolts bear the transverse stress from the steel sheets while bearing longitudinal stress along the length direction of the screw rods, the screw rods of the U-shaped bolts are in fracture risk, and then the safety of the trailer is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a leaf spring suspension assembly of trailer, it can avoid producing horizontal relative displacement between leaf spring unit's the steel sheet, improves the security of trailer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the plate spring suspension assembly of the trailer comprises two brackets, a plate spring component, an upper support, a lower support, an axle, a connecting rod and two U-shaped bolts;
the two brackets are both fixed on the frame of the trailer and are arranged along the longitudinal direction of the trailer frame;
the plate spring assembly comprises a plurality of steel sheets which are arranged in a stacked mode, and two ends of the steel sheets are respectively connected to the two supports in a penetrating mode;
the upper support is arranged above the upper surface of the plate spring assembly, the axle is arranged above the upper support, the lower support comprises a bottom plate arranged below the lower surface of the plate spring assembly, two side walls which respectively extend upwards from two sides of the bottom plate and are respectively arranged at two sides of the plate spring assembly, and the top of each side wall is provided with a connecting wall extending outwards;
the two U-shaped bolts are respectively arranged on two sides of the plate spring assembly, each U-shaped bolt comprises two vertically extending screw rods and a pressing section which is connected to the tops of the two screw rods and pressed on the axle, the two U-shaped bolts respectively correspond to the two side walls, the two screw rods of the U-shaped bolts downwards penetrate through the connecting wall of the side walls, and a locking nut pressed on the lower surface of the connecting wall is screwed on the part of the screw rods penetrating through the connecting wall;
one end of the connecting rod is hinged on the upper support, and the other end of the connecting rod is hinged on one of the brackets.
Each side wall is provided with two connecting walls staggered along the length direction of the plate spring assembly, and two screws of the U-shaped bolt are respectively connected onto the two connecting walls in a penetrating mode.
The outer surface of the side wall is provided with a first reinforcing rib, one end of the first reinforcing rib is connected with the connecting wall, the other end of the first reinforcing rib extends downwards to the bottom of the side wall, the lower surface of the bottom plate is provided with a second reinforcing rib extending from one side of the second reinforcing rib to the other side of the bottom plate, and the two ends of the second reinforcing rib are respectively connected with the first reinforcing ribs on the two side walls.
The bottom plate, the side wall, the connecting wall, the first reinforcing rib and the second reinforcing rib are integrally formed.
The cross section of axletree is circular, and the section that compresses tightly of U-shaped bolt is the arc that matches with axletree outer fringe shape.
The upper support is provided with a groove with a semicircular cross section, and the axle is embedded in the groove.
The connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is hinged to the upper support, the other end of the first connecting rod is provided with a first thread, one end of the second connecting rod is hinged to one of the supports, the other end of the second connecting rod is provided with a second thread, two ends of the third connecting rod are respectively in threaded connection with the first thread and the second thread, and the rotating directions of the first thread and the second thread are opposite.
The other end of the first connecting rod is provided with a first connecting hole, a first thread is arranged on the inner wall of the first connecting hole, the other end of the second connecting rod is provided with a second connecting hole, a second thread is arranged on the inner wall of the second connecting hole, and two ends of the third connecting rod are respectively connected in the first connecting hole and the second connecting hole in a penetrating mode.
The beneficial effects of the utility model reside in that:
the utility model discloses owing to set up two lateral walls on the undersetting, the side of each steel sheet of leaf spring assembly is arranged in to this both sides wall, it is spacing to utilize the lateral wall to carry on the steel sheet, avoid the steel sheet to take place lateral displacement when the vibration, and simultaneously, the screw rod of U-shaped bolt is owing to be the cross-under on the connective wall of lateral wall, make the outside of lateral wall arranged in to the screw rod, the lateral wall plays the effect of protection to the screw rod, thereby avoid the steel sheet to apply horizontal stress to the screw rod, the screw rod has been avoidd and has been leaded to cracked risk because of the atress is great, thereby the security of trailer has been improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a view taken along line A of FIG. 1;
fig. 3 is a schematic structural view of the lower support in fig. 2.
Detailed Description
The invention will be further described with reference to the following drawings and detailed description:
as shown in fig. 1, 2 and 3, the leaf spring suspension assembly of a trailer of the present invention includes a support 11, a support 12, a leaf spring assembly 20, an upper support 30, a lower support 40, an axle 50, a connecting rod 70 and two U-shaped bolts 60, wherein the support 11 and the support 12 are both fixedly welded on the frame of the trailer, and the two are arranged along the longitudinal direction of the trailer frame, the leaf spring assembly 20 includes a plurality of steel sheets 21 arranged in a stacked manner, two ends of the leaf spring assembly 20 respectively penetrate the support 11 and the support 12, the upper support 30 is arranged above the upper surface of the leaf spring assembly 20, the axle 50 is arranged above the upper support 30, the lower support 40 is arranged below the leaf spring assembly 20, specifically, the lower support 40 includes a bottom plate 41 arranged below the lower surface of the leaf spring assembly 20 and two side walls 42, the two side walls 42 respectively extend upwards from two sides of the bottom plate 41, the two side walls 42 and the bottom plate 41 form a structure with a U-shaped section, the two side walls 42 are arranged between the two side walls 42 and supported on the bottom plate 41, the two side walls 42 respectively lean against two sides of the leaf spring assembly 20, and the two side walls are respectively, and a connecting wall 43 is arranged outside the top of the side wall 42 extends outwards; two U-shaped bolts 60 are respectively disposed at both sides of the plate spring assembly 20, each U-shaped bolt 60 includes two vertically extending threaded rods 61 and a pressing section 62 connected between tops of the two threaded rods 61, the two U-shaped bolts 60 respectively correspond to the two side walls 42, the two threaded rods 61 of the U-shaped bolts 60 are downwardly penetrated and connected to the connecting wall 43 of the corresponding side wall 42, and a lock nut 63 is screwed to a portion of the threaded rod 61 penetrating through a lower surface of the connecting wall 43, the lock nut 63 is tightened to be pressed against a lower surface of the connecting wall 43, and by tightening the U-shaped bolts 60 downwardly, the pressing section of the U-shaped bolt 60 is pressed on the axle 50, thereby tightening the axle 50, the upper bracket 30, the plate assembly 20, and the lower bracket 40, so that the axle 50, the upper bracket 30, the plate assembly 20, and the lower bracket 40 are fixed as a whole. The connecting rod 70 has one end hinged to the upper seat 30 and the other end hinged to the bracket 12.
The above technical scheme of the utility model, owing to set up two lateral walls 42 on undersetting 40, the side of each steel sheet 21 of leaf spring assembly 20 is arranged in to this both sides wall 42, it is spacing to utilize lateral wall 42 to carry on steel sheet 21, avoid steel sheet 21 to take place lateral displacement when the vibration, and simultaneously, U-shaped bolt 60's screw rod 61 is owing to be the cross-under on lateral wall 42's connective wall 43, make screw rod 61 arrange the outside of lateral wall 42 in, lateral wall 42 plays the effect of protection to screw rod 61, thereby avoid steel sheet 21 to exert horizontal stress to the screw rod, screw rod 61 has been avoidd because of the atress great cracked risk that leads to, thereby the security of trailer has been improved.
In a preferred embodiment, two connecting walls 43 are provided on each side wall 42, and the connecting walls 43 are offset along the length of the leaf spring assembly 20 so that two screws 61 of the U-bolt 60 respectively correspond to two screws 61 of the U-bolt 60, and the two screws 61 of the U-bolt 60 respectively penetrate the two connecting walls 43 on the same side wall 42. The outer surface of the side wall 42 is provided with a first reinforcing rib 421, one end of the first reinforcing rib 421 is connected to the connecting wall 43, the other end of the first reinforcing rib extends downwards to the bottom of the side wall 42, the lower surface of the bottom plate 41 is provided with a second reinforcing rib 411 extending from one side to the other side of the bottom plate, two ends of the second reinforcing rib 411 are respectively connected with the first reinforcing ribs 421 on the two side walls 42 to form a continuous reinforcing rib, four reinforcing ribs can be arranged on the lower support 40 and are arranged along the length direction of the plate spring assembly 20, wherein two reinforcing ribs are respectively connected between the connecting walls 43 opposite to the two side walls 42 and are connected at two ends of the connecting walls 43, and the reinforcing effect is achieved on the side wall 42 and the connecting walls 43. The utility model discloses a undersetting 40 can be the casting process integrated into one piece that adopts, bottom plate 41, lateral wall 42, connecting wall 43, first strengthening rib 421 and second strengthening rib 411 integrated into one piece promptly.
The axle 50 has a circular cross-sectional shape, and the pressing section 62 of the U-bolt 60 has an arc shape and matches the shape of the outer edge of the axle 50, so that the pressing section 62 can be sufficiently contacted with the surface of the axle 50, thereby sufficiently tightening the axle 50. A groove with a semicircular cross section is formed in the upper support 30, the axle 50 is embedded in the groove, the cross section of the axle can be square, a cushion block can be arranged between the pressing section 62 and the upper surface of the axle to enable the pressing section 62 to sufficiently press the axle, and the groove with the square cross section is formed in the upper support 30 and used for the axle to be embedded in.
The connecting rod 70 comprises a first connecting rod 71, a second connecting rod 72 and a third connecting rod 73, one end of the first connecting rod 71 is hinged to the upper support 30, the other end of the first connecting rod 71 is provided with a first thread, one end of the second connecting rod 72 is hinged to the support 12, the other end of the second connecting rod 72 is provided with a second thread, two ends of the third connecting rod 73 are respectively in threaded connection with the first thread and the second thread, the rotating directions of the first thread and the second thread are opposite, and during assembly, the overall length of the connecting rod 70 can be changed by rotating the third connecting rod 73, so that the mounting position of the axle 50 in the length direction of the trailer frame can be adjusted. The other end of the first connecting rod 71 is provided with a first connecting hole, the first thread is an internal thread formed in the inner wall of the first connecting hole, the other end of the second connecting rod 72 is provided with a second connecting hole, the second thread is an internal thread formed in the inner wall of the second connecting hole, and the two ends of the third connecting rod are respectively connected into the first connecting hole and the second connecting hole in a penetrating mode so as to be matched with the first connecting rod 71 and the second connecting rod 72 in a threaded mode.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The plate spring suspension assembly of the trailer is characterized by comprising two brackets, a plate spring component, an upper support, a lower support, an axle, a connecting rod and two U-shaped bolts;
the two brackets are both fixed on the frame of the trailer and are arranged along the longitudinal direction of the trailer frame;
the plate spring assembly comprises a plurality of steel sheets which are arranged in a stacked mode, and two ends of the steel sheets are respectively connected to the two supports in a penetrating mode;
the upper support is arranged above the upper surface of the plate spring assembly, the axle is arranged above the upper support, the lower support comprises a bottom plate arranged below the lower surface of the plate spring assembly, two side walls which respectively extend upwards from two sides of the bottom plate and are respectively arranged on two sides of the plate spring assembly, and the top of each side wall is provided with a connecting wall extending outwards;
the two U-shaped bolts are respectively arranged on two sides of the plate spring assembly and comprise two vertically extending screw rods and a pressing section which is connected to the tops of the two screw rods and pressed on an axle, the two U-shaped bolts respectively correspond to the two side walls, the two screw rods of the U-shaped bolts downwards penetrate through the connecting wall of the side walls, and a locking nut pressed on the lower surface of the connecting wall is screwed on the part of the screw rods penetrating through the connecting wall;
one end of the connecting rod is hinged on the upper support, and the other end of the connecting rod is hinged on one of the brackets.
2. A leaf spring suspension assembly for a trailer according to claim 1 wherein each side wall is provided with two attachment walls offset along the length of the leaf spring assembly, the two shanks of the U-bolt being threaded onto the two attachment walls respectively.
3. The plate spring suspension assembly for a trailer as claimed in claim 2 wherein the outer surface of the side wall is provided with a first reinforcing rib, one end of the first reinforcing rib is connected to the connecting wall and the other end extends downwardly to the bottom of the side wall, the lower surface of the floor is provided with a second reinforcing rib extending from one side thereof to the other side thereof, and both ends of the second reinforcing rib are connected to the first reinforcing ribs on the two side walls, respectively.
4. The leaf spring suspension assembly of a trailer as claimed in claim 3 wherein the floor, side walls, connecting wall, first reinforcement and second reinforcement are integrally formed.
5. The leaf spring suspension assembly of a trailer as claimed in claim 1 wherein the axle is circular in cross section and the compression section of the U-bolt is arcuate in shape to match the shape of the outer edge of the axle.
6. The leaf spring suspension assembly for trailers of claim 5, wherein the upper support is provided with a recess of semicircular cross section in which the axle is inserted.
7. The leaf spring suspension assembly of a trailer as claimed in claim 1 wherein the linkage comprises a first linkage, a second linkage, and a third linkage, the first linkage having one end hinged to the upper support and the other end provided with a first thread, the second linkage having one end hinged to one of the supports and the other end provided with a second thread, the third linkage having two ends respectively threadedly engaged with the first and second threads, and the first and second threads having opposite hand turns.
8. The plate spring suspension assembly of a trailer as claimed in claim 7, wherein the other end of the first link is provided with a first connection hole, a first screw thread is opened on an inner wall of the first connection hole, the other end of the second link is provided with a second connection hole, a second screw thread is opened on an inner wall of the second connection hole, and both ends of the third link are respectively penetrated in the first connection hole and the second connection hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221777072.3U CN218228554U (en) | 2022-07-12 | 2022-07-12 | Plate spring suspension assembly of trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221777072.3U CN218228554U (en) | 2022-07-12 | 2022-07-12 | Plate spring suspension assembly of trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218228554U true CN218228554U (en) | 2023-01-06 |
Family
ID=84676496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221777072.3U Active CN218228554U (en) | 2022-07-12 | 2022-07-12 | Plate spring suspension assembly of trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218228554U (en) |
-
2022
- 2022-07-12 CN CN202221777072.3U patent/CN218228554U/en active Active
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