CN216886134U - Suspension assembly of trailer and trailer - Google Patents
Suspension assembly of trailer and trailer Download PDFInfo
- Publication number
- CN216886134U CN216886134U CN202220117292.7U CN202220117292U CN216886134U CN 216886134 U CN216886134 U CN 216886134U CN 202220117292 U CN202220117292 U CN 202220117292U CN 216886134 U CN216886134 U CN 216886134U
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- trailer
- bracket
- axle
- balance beam
- suspension assembly
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Abstract
The utility model discloses a trailer and a suspension assembly thereof, wherein the suspension assembly of the trailer comprises a bracket, a middle bracket, a connecting bracket, a balance beam, an axle, a steel plate spring and a connecting rod; the bracket, the middle bracket and the connecting bracket are all fixed on a frame of the trailer, and the connecting bracket is positioned between the middle bracket and the bracket; the middle part of the balance beam is pivoted on the middle bracket, and one end of the balance beam forms a swinging end; the axle is fixed in the middle of the steel plate spring, one end of the steel plate spring is connected to the bracket, the other end of the steel plate spring is connected to the swinging end of the balance beam in a penetrating manner, and the other end of the steel plate spring is matched with the swinging end of the balance beam in a floating manner; one end of the connecting rod is hinged with the axle, the other end of the connecting rod is hinged on the connecting support, the upper surface of the connecting rod forms a limiting surface, a limiting part is arranged on the frame of the trailer, and the swinging end swings between the limiting surface and the limiting part. The utility model reduces the swing amplitude of the balance beam, avoids the separation of the steel plate spring from the swing end of the balance beam, shortens the length of the connecting rod and ensures that the connecting rod is not easy to deform.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a suspension assembly of a trailer and the trailer.
Background
The suspension assembly is a main bearing part of a trailer, the suspension assembly of the existing trailer generally comprises a middle support, a balance beam, a steel plate spring, a connecting rod and the like, wherein the middle support and the support are welded on a frame of the trailer, the balance beam is pivoted on the middle support, one end of the steel plate spring is connected with the support, the other end of the steel plate spring is connected with the end part of the balance beam in a penetrating way and is matched with the end part of the balance beam in a vertically floating way, an axle is fixed in the middle of the steel plate spring through a support, the connecting rod is connected between the support and the middle support, the axle is prevented from swinging back and forth by the connecting rod, when the existing structure is suitable for a long axle distance, the distance between the axle and the middle support is increased due to the increase of the axle distance, the length of the balance beam and the length of the connecting rod are required to be adaptively increased, the length of the balance beam is increased, the swinging amplitude of the end part of the balance beam is increased, and the position where the steel plate spring is matched with the balance beam is easy to be separated, cause the potential safety hazard, simultaneously, because the length increase of connecting rod leads to the stability of connecting rod relatively poor, and is specific, and connecting rod length increase is easily deformed when the atress, to sum up, current assembly that hangs is hardly applicable to the requirement that the long wheelbase hung.
SUMMERY OF THE UTILITY MODEL
In view of the defects in the prior art, an object of the present invention is to provide a suspension assembly for a trailer, which can meet the requirement of a long wheelbase of the trailer and improve the safety of the trailer with the long wheelbase.
The utility model also aims to provide a trailer.
In order to achieve the first purpose, the utility model adopts the following technical scheme:
the suspension assembly of the trailer is arranged below a frame of the trailer and comprises a bracket, a middle bracket, a connecting bracket, a balance beam, an axle, a steel plate spring and a connecting rod;
the bracket, the middle bracket and the connecting bracket are all fixed on a frame of the trailer, and the connecting bracket is positioned between the middle bracket and the bracket;
the middle part of the balance beam is pivoted on the middle bracket, and one end of the balance beam forms a swinging end;
the axle is fixed in the middle of the steel plate spring, one end of the steel plate spring is connected to the bracket, the other end of the steel plate spring is connected to the swinging end of the balance beam in a penetrating manner, and the other end of the steel plate spring is matched with the swinging end of the balance beam in a vertically floating manner;
one end of the connecting rod is hinged with the axle, the other end of the connecting rod is hinged on the connecting support, a limiting surface positioned below the swinging end is formed on the upper surface of the connecting rod, a limiting part positioned above the swinging end is arranged on the frame of the trailer, and the swinging end swings between the limiting surface and the limiting part.
The swing end of the balance beam is fixed with a limiting shaft extending along the width direction of the balance beam, and the limiting shaft is matched with the limiting surface to limit the degree of freedom of downward swing of the swing end.
The balance beam comprises two side plates which are respectively positioned at the two sides of the balance beam, the limiting shaft transversely penetrates through the balance beam, and the two ends of the limiting shaft are respectively fixed on the two side plates.
And one side of the two side plates, which is positioned at the bottom of the swinging end, is provided with a convex part which protrudes downwards, and two ends of the limiting shaft are respectively fixed on the convex parts of the two side plates.
At least two mounting holes arranged along the height direction are formed in the two side plates, the limiting shaft is a bolt, the bolt transversely penetrates through the two mounting holes in the two side plates at the same height and is locked on the balance beam through a fastening nut.
The part of the bolt between the two side plates is sleeved with an anti-collision sleeve.
The connecting support comprises two opposite side walls, the balance beam is arranged between the two side walls in a penetrating mode, a first rotating shaft is connected between the bottoms of the two side walls, and the other end of the connecting rod is pivoted on the first rotating shaft.
The axletree is fixed on leaf spring through a support subassembly, is provided with a second pivot on the support subassembly, and the pin joint of one end of connecting rod is in this second pivot.
The support assembly comprises a lower support, an upper support and a U-shaped bolt, wherein the lower support is located below the axle, the upper support is located above the axle and clamped between the axle and the steel plate spring, the axle is clamped between the lower support and the upper support, the U-shaped bolt is arranged on two sides of the steel plate spring in a spanning mode, two ends of the U-shaped bolt respectively extend downwards to pass through two sides of the lower support, and locking nuts are screwed on parts, passing through the lower support, of two ends of the U-shaped bolt.
In order to achieve the second purpose, the utility model adopts the following technical scheme:
a trailer, comprising a suspension assembly of the trailer.
The utility model has the beneficial effects that:
according to the utility model, the connecting support is arranged between the support and the middle support, the connecting rod is connected between the axle and the connecting support, the maximum angle of downward swinging of the balance beam is limited by the upper surface of the connecting rod, so that the swinging amplitude of the balance beam is reduced, and the steel plate spring is prevented from being separated from the swinging end of the balance beam.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic structural view of the balance beam in fig. 1.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1, 2 and 3, the suspension assembly of a trailer of the utility model comprises a bracket 20, a middle bracket 10, a connecting bracket 30, a balance beam 60, an axle 40, a steel plate spring 50 and a connecting rod 70; the support 20, the middle support 10 and the connecting support 30 are all welded and fixed on the frame of the trailer, in addition, the connecting support 30 is positioned between the support 20 and the middle support 10, the connecting support 30 is positioned at a position close to the middle support 10, the middle part of the balance beam 60 is pivoted on the middle support 10, one end of the balance beam forms a swinging end, the axle 40 is fixed on the middle part of the steel plate spring 50, one end of the steel plate spring 50 is connected on the support 20, the other end of the steel plate spring 50 penetrates through the swinging end of the balance beam 60, and the other end of the steel plate spring 50 is matched with the swinging end of the balance beam 60 in an up-and-down floating mode. One end of the connecting rod 70 is hinged with the axle 40, the other end is hinged on the connecting support 30, the upper surface of the connecting rod 70 forms a limiting surface 71 positioned below the swinging end, a limiting part 80 positioned above the swinging end is arranged on the trailer frame, the limiting part 80 can be a reversed channel steel welded on the frame, the swinging end swings between the limiting surface 71 and the limiting part 80, the maximum angle of the swinging end which swings up and down can be limited through the limiting surface 71 and the limiting part 80, and then the swinging amplitude of the balance beam 60 is limited not to be too large.
According to the utility model, the connecting support is arranged between the support and the middle support, the connecting rod is connected between the axle and the connecting support, the maximum angle of downward swinging of the balance beam is limited by the upper surface of the connecting rod, so that the swinging amplitude of the balance beam is reduced, and the steel plate spring is prevented from being separated from the swinging end of the balance beam.
In the preferred embodiment, a limit shaft 62 extending along the width direction of the balance beam 60 is fixed at the swinging end of the balance beam 60, when the limit shaft 62 swings downwards along with the swinging end of the balance beam 60, the limit shaft 62 contacts with the limit surface 71, then the limit shaft 62 and the limit surface 71 are matched to form a limit mechanism, so as to limit the degree of freedom of the swinging end of the balance beam 60 swinging downwards, further limit the maximum angle at which the balance beam 60 can swing downwards, and only under the maximum angle, the other end of the steel plate spring 50 is prevented from being separated from the swinging end of the balance beam 60. The balance beam 60 comprises two side plates 63 which are respectively positioned on two sides of the balance beam 60, two ends of a limiting shaft 62 are respectively fixed on the two side plates 63 after the limiting shaft 62 transversely penetrates through the balance beam 60, in this way, a part positioned between the two side plates 63 on the limiting shaft 62 forms a part in contact fit with a limiting surface 71, in order to further reduce the maximum downward swinging angle of the balance beam 60, a downward convex bulge part 61 is arranged on one side of the bottom of the swinging end on the two side plates 63, and two ends of the limiting shaft 62 are respectively fixed on the bulge parts 61 of the two side plates 63, so that the position of the limiting shaft 62 is arranged as far as possible, the distance between the limiting shaft 62 and the limiting surface 71 is reduced, and then the maximum downward swinging angle of the balance beam 60 is further reduced. In addition, in order to increase the applicable range, the height of the above-mentioned limiting shaft 62 may be adjustable so as to be adjusted according to the actual installation situation, specifically, at least two installation holes 64 arranged along the height direction are provided on both side plates 63, two installation holes 64 with the same height on both side plates 63 are provided in pairs, the limiting shaft 62 is a bolt, both ends of which are respectively penetrated into the two installation holes 64 with the same height on both side plates 63, and the limiting shaft 62 is locked and fixed on the balance beam 60 by a fastening nut 66, when assembling, the limiting shaft 62 is penetrated into the installation holes 64 with the same height on both side plates 63 from one side of the balance beam 60, the other side of the balance beam 60 is screwed and screwed with the limiting shaft 62 by the fastening nut 66, when needing to be adjusted, the limiting shaft 62 is installed in the installation holes 64 with different heights, when the swing amplitude of the balance beam 60 is too large, the stopper shaft 62 is adjustable downward, and when the swing width is too small, the stopper shaft 62 is adjustable upward. In addition, a collision-proof sleeve 65 is sleeved on the part of the limit shaft 62 between the two side plates 63, so that the damage caused when the limit shaft 62 collides with the limit surface 71 is reduced.
The connecting bracket 30 includes two side walls 32 disposed opposite to each other, the balance beam 60 is disposed between the two side walls 32, the first rotating shaft 31 is connected between bottom end portions of the two side walls 32, and the other end of the connecting rod 70 is pivotally connected to the first rotating shaft 31, so that the connecting rod 70 is limited between the two side walls 32, and thus the balance beam 60 can be disposed opposite to the connecting rod 70 up and down, and the limit shaft 62 at the swing end of the balance beam 60 can be in contact fit with the limit surface 71 of the connecting rod 70 in an up-and-down opposite manner.
The axle 40 is fixed to the leaf spring 50 by a bracket assembly, on which a second shaft 72 is provided, and one end of the link 70 is pivoted on the second shaft 72. Specifically, the support assembly includes a lower support 42, an upper support 41, and a U-shaped bolt 43, the lower support 42 is located below the axle 40, the upper support 41 is located above the axle 40 and clamped between the leaf spring 50 and the axle 40, the axle 40 is clamped between the upper support 41 and the lower support 42, the U-shaped bolt 43 spans two sides of the leaf spring 50, and screws at two ends of the U-shaped bolt 43 extend downward from two sides of the leaf spring 50 and then respectively pass through two sides of the lower support 42, a lock nut is screwed to a portion of the screw at two sides of the U-shaped bolt 43 that passes through the lower support 42, the lock nut is screwed to cause the U-shaped bolt 43 to downwardly tension the leaf spring, the upper support 41, the axle 40, and the lower support 42, thereby fixing the axle 40 and the leaf spring 50, and the second rotating shaft 72 may be disposed on the upper support 41.
The trailer of the present invention includes the suspension assembly of the trailer described above, and the other structures of the trailer are the same as those of the prior art and will not be described in detail herein.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will 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 utility model.
Claims (10)
1. The suspension assembly of the trailer is arranged below a frame of the trailer and is characterized by comprising a bracket, a middle bracket, a connecting bracket, a balance beam, an axle, a steel plate spring and a connecting rod;
the bracket, the middle bracket and the connecting bracket are all fixed on a frame of the trailer, and the connecting bracket is positioned between the middle bracket and the bracket;
the middle part of the balance beam is pivoted on the middle bracket, and one end of the balance beam forms a swinging end;
the axle is fixed in the middle of the steel plate spring, one end of the steel plate spring is connected to the bracket, the other end of the steel plate spring is connected to the swinging end of the balance beam in a penetrating manner, and the other end of the steel plate spring is matched with the swinging end of the balance beam in a vertically floating manner;
one end of the connecting rod is hinged with the axle, the other end of the connecting rod is hinged on the connecting support, a limiting surface positioned below the swinging end is formed on the upper surface of the connecting rod, a limiting part positioned above the swinging end is arranged on the frame of the trailer, and the swinging end swings between the limiting surface and the limiting part.
2. A suspension assembly for a trailer as claimed in claim 1 wherein the swing end of the equalizer beam has a limit shaft extending widthwise of the equalizer beam, the limit shaft cooperating with the limit surface to limit the degree of freedom of the swing end to swing downwardly.
3. A suspension assembly for a trailer as claimed in claim 2 wherein the equalizer beam includes two side plates disposed on either side thereof, the restraint axle extending across the equalizer beam and having opposite ends secured to the two side plates.
4. A suspension assembly for a trailer as claimed in claim 3 wherein the side of the side panels at the bottom of the swing end are provided with downwardly projecting bosses and the ends of the restraining axle are secured to the bosses of the side panels respectively.
5. A suspension assembly for a trailer as claimed in claim 3 wherein each of the side plates is provided with at least two mounting holes arranged in the height direction, the limiting shaft is a bolt which traverses the two mounting holes of the same height on the two side plates and is locked to the equalizer bar by a fastening nut.
6. A suspension assembly for a trailer as claimed in claim 5 wherein the portion of the bolt between the side panels is provided with a crash sleeve.
7. A suspension assembly for a trailer as claimed in claim 1 wherein the connecting bracket comprises two oppositely disposed side walls, the equalizer beam being disposed between the side walls, a first pivot being connected between the bottoms of the side walls, the other end of the link being pivotally connected to the first pivot.
8. A suspension assembly for a trailer as claimed in claim 1 wherein the axle is secured to the leaf spring by a bearing assembly, the bearing assembly having a second pivot shaft, the second pivot shaft being pivotally connected at one end to the link.
9. A suspension assembly for a trailer as claimed in claim 8, wherein the support assembly comprises a lower support located below the axle, an upper support located above the axle and clamped between the axle and the leaf spring, a U-bolt clamped between the lower support and the upper support, the U-bolt straddling the leaf spring and having ends extending downwardly through the sides of the lower support, respectively, and a locking nut threadedly engaged at the ends of the U-bolt through the lower support.
10. Trailer, characterized in that it comprises a suspension assembly of a trailer according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220117292.7U CN216886134U (en) | 2022-01-17 | 2022-01-17 | Suspension assembly of trailer and trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220117292.7U CN216886134U (en) | 2022-01-17 | 2022-01-17 | Suspension assembly of trailer and trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216886134U true CN216886134U (en) | 2022-07-05 |
Family
ID=82212267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220117292.7U Active CN216886134U (en) | 2022-01-17 | 2022-01-17 | Suspension assembly of trailer and trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216886134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023134170A1 (en) * | 2022-01-17 | 2023-07-20 | 广东富华重工制造有限公司 | Suspension assembly of trailer, and trailer |
-
2022
- 2022-01-17 CN CN202220117292.7U patent/CN216886134U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023134170A1 (en) * | 2022-01-17 | 2023-07-20 | 广东富华重工制造有限公司 | Suspension assembly of trailer, and trailer |
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