CN211252764U - Connecting structure of auxiliary frame and frame longitudinal beam of dump truck - Google Patents
Connecting structure of auxiliary frame and frame longitudinal beam of dump truck Download PDFInfo
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- CN211252764U CN211252764U CN201922471336.7U CN201922471336U CN211252764U CN 211252764 U CN211252764 U CN 211252764U CN 201922471336 U CN201922471336 U CN 201922471336U CN 211252764 U CN211252764 U CN 211252764U
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Abstract
The utility model discloses a connection structure of tipper sub vehicle frame and solebar, including sub vehicle frame, solebar, be equipped with the upper bracket on the ventral surface of sub vehicle frame, its characterized in that: the ventral surface of the frame longitudinal beam is provided with a connecting bracket, the upper bracket and the connecting bracket are arranged up and down, and the upper bracket and the connecting bracket are in a detachable connecting structure; the utility model discloses but wide application in commercial tipper repacking production field and special-purpose vehicle, special vehicle production field mainly relate to the repacking production of commercial tipper, special-purpose vehicle.
Description
Technical Field
The utility model belongs to tipper spare part field, especially a connection structure of tipper sub vehicle frame and solebar.
Background
The self-discharging car comprises chassis, packing box, hydraulic pressure system of lifting, it is fixed through sub vehicle frame connection between chassis and the packing box, it is abominable because of the tipper uses the operating mode, the atress process is complicated, packing box lift in-process sub vehicle frame not only receives upper and lower direction effort, still receives left and right directions effort simultaneously, therefore the sub vehicle frame with solebar connection in-process, must restrict sub vehicle frame upper and lower direction and left and right direction to be connected must firmly reliably between sub vehicle frame and the solebar. As shown in fig. 1, in order to meet design requirements, the subframe 1 and the frame side member 2 are generally fixed by an upper bracket 3, a U-bolt 4, and a subframe connecting plate 5. The U type bolt weight is spacing about going on to the sub vehicle frame, and sub vehicle frame connecting plate weight is spacing about going on to the sub vehicle frame, and general U type bolt later stage installs additional, and the sub vehicle frame connecting plate is taken by chassis solebar certainly. In order to ensure the installation stress effect, the U-shaped bolts and the auxiliary frame connecting plates are required to be symmetrically arranged on the left side and the right side of the frame as far as possible.
During actual modification production, a container modification manufacturer firstly performs accounting according to the height of the frame longitudinal beam and the height of the auxiliary frame, determines the length of the reasonable U-shaped bolt, and then performs purchase assembly on the U-shaped bolt. Due to the limitation of the U-shaped bolt structure, the U-shaped bolt needs to occupy the space of the inner side, the outer side and the bottom of the frame longitudinal beam when being installed. And the chassis system parts are arranged in most areas of the inner side and the outer side of the frame, so that the problem that U-shaped bolts cannot be arranged or the arrangement positions of the U-shaped bolts are unreasonable when the chassis system parts are modified due to the structure of the chassis parts is often caused, and the vehicle modification and modification effects are further influenced. Simultaneously, the abdomen height of different motorcycle type solebars and sub vehicle frame is not equal, causes U type bolt length inequality to cause U type bolt kind many, be unfavorable for the generalized design of U type bolt, improve whole car repacking cost. In addition, after the U-shaped bolts are reasonably arranged, the tightening torque of the U-shaped bolts and the nuts must meet the standard requirements, otherwise, the U-shaped bolts and the nuts cannot play a role in fixing the U-shaped bolts. And the solebar is the non-enclosed construction of cell type, and when fastening U type bolt nut, the solebar can produce elastic deformation and cause the bolt not tight, screws up the moment too big and can cause the frame airfoil to warp, and the undersize can cause later stage U type bolt nut early pine to take off, and inconvenient screwing up moment control also does not benefit to mass production. In order to prevent the U-shaped bolt from pulling and pressing the frame longitudinal beam to deform, a lower cushion block of the U-shaped bolt is generally added on the lower wing surface of the frame, the stress area between the U-shaped bolt and the wing surface of the frame is increased, and the wing surface deformation of the frame is reduced. This method can improve the above problem properly, but the number of parts increases, the U-bolt length is longer, and the production cost increases. Meanwhile, the U-shaped bolt cannot be thoroughly prevented from damaging the airfoil surface of the frame, because the longitudinal frame beam and the auxiliary frame can be subjected to flexural deformation after the heavy load of the vehicle, the whole longitudinal frame beam can be displaced downwards to generate micro deformation, the U-shaped bolt is subjected to the tensile force action of the U-shaped bolt, the synchronous deformation of the longitudinal frame beam in the area is limited, the stress concentration of the position can be caused after the heavy load of the vehicle, the U-shaped bolt can be loosened after a long time, and the vehicle frame is broken due to the overlarge stress.
On the other hand, the existing subframe connecting plate is of a straight structure and poor in bending strength, and needs to be made of a thicker steel plate, generally 8-10mm, to bear lateral force of the subframe in the left and right directions.
Disclosure of Invention
Solve above-mentioned tipper sub vehicle frame and solebar in order fundamentally and be connected the problem that faces, the utility model provides a connection structure of tipper sub vehicle frame and solebar.
In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a connection structure of tipper sub vehicle frame and solebar, includes sub vehicle frame, solebar, is equipped with the upper bracket on the ventral surface of sub vehicle frame, its characterized in that: the ventral surface of the frame longitudinal beam is provided with a connecting support, the upper support and the connecting support are arranged up and down, and the upper support and the connecting support are of a detachable connecting structure.
The technical scheme is further limited, and the upper bracket is connected with the connecting bracket through a bolt.
The technical scheme is further limited, and the connecting bracket has the structure that: the vehicle frame longitudinal beam limiting device comprises a plate body, wherein a bolt connecting part is arranged in the middle of the plate body in a concave mode, the upper end of the plate body can transversely limit a vehicle frame, and the lower end of the plate body can be fixedly connected with a vehicle frame longitudinal beam.
The technical scheme is further improved, and the upper end part of the connecting bracket is fixedly connected with the upper bracket.
The technical scheme is further improved, and the upper end part of the connecting bracket is provided with a lightening hole.
The technical scheme is further improved, and the inner side part of the lightening hole in the connecting support is welded with the auxiliary frame.
Has the advantages that: 1. through the structural adjustment, the technical problem that U-shaped bolts on two longitudinal beams of the frame are not symmetrical in the traditional structure is solved, and the left and right stress of the auxiliary frame is optimized; 2. through the structural adjustment, the limitation of parts arranged inside and outside the frame on the position of additionally installing the U-shaped bolt is effectively avoided; 3. through the structural adjustment, a lower cushion block and a U-shaped bolt of the U-shaped bolt are eliminated, the variety and the number of parts are reduced, and the modification cost is reduced; 4. the new structure is not influenced by the height of the ventral surfaces of the frame longitudinal beam and the auxiliary frame, and is beneficial to the universal design of the refitted parts; 5. the connection mode of the new structure improves the stress condition of the frame, the wing surface stress deformation of the frame can not be caused, and the longitudinal beam and the auxiliary frame of the frame can be synchronously deformed up and down according to the stress condition to generate displacement, so that the fracture problem caused by alternating stress concentration is avoided; 6. the lateral rigidity of the auxiliary frame connecting plate with the new structure is greatly improved, the plate thickness can be greatly reduced, generally 5-6mm, and the lightweight design of the whole vehicle is facilitated; 7. the connecting bolt acts on the outer flank surface of the frame, the wing surface of the frame cannot be deformed, the tightening torque of the connecting bolt is convenient to control, and mass production is facilitated; the auxiliary frame connecting plate with the novel structure has good left and right fitting degree with the frame longitudinal beam, is not easy to be inclined when being installed due to good vertical degree, and is not easy to loosen due to stable stress.
Drawings
Fig. 1 is a schematic structural diagram in the background art.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a right side view of fig. 2.
Fig. 4 is a schematic view of the connecting bracket structure of the present invention.
Fig. 5 is a top view of fig. 4.
Detailed Description
As shown in fig. 2 and 3, a connecting structure of a subframe and a frame longitudinal beam of a dump truck comprises a subframe 1 and a frame longitudinal beam 2, wherein the subframe is supported on the frame longitudinal beam, an upper support 3 is arranged on the ventral surface of the subframe, a connecting support 6 is arranged on the ventral surface of the frame longitudinal beam, the upper support and the connecting support are arranged up and down, and the upper support and the connecting support are of a detachable connecting structure; namely, the upper bracket is connected with the connecting bracket through a bolt 7;
as shown in fig. 4 and 5, the connecting bracket 6 has the following structure: the plate comprises a plate body 601, wherein a bolt connecting part 602 is concavely arranged in the middle of the plate body; the cross section of the bolt connecting part is arc-shaped, and a hollow hole in the bolt connecting part is convenient for inserting a bolt; the upper end of the plate body can transversely limit the auxiliary frame, and the lower end of the plate body is fixedly connected with the frame longitudinal beam; the connecting bracket is integrally produced by adopting a punch forming process, so that the strength of the bolt hole is ensured, and the production cost is reduced;
as shown in fig. 4 and 5, in order to improve the connection effect and reduce the weight, the periphery of the upper end of the connection bracket and the upper bracket may be fixed by welding, and the periphery inside the lightening hole 603 on the connection bracket and the subframe may also be welded.
When the vehicle chassis is designed, mounting positions of the multifunctional connecting supports are designed in advance according to the required quantity on the left longitudinal beam and the right longitudinal beam of the frame, and the connecting supports are symmetrically arranged on the left longitudinal beam and the right longitudinal beam. The lower end of the connecting support is fixed on the ventral surface of the frame longitudinal beam through the hexagon bolts, the upper support is fixed on the auxiliary frame according to the position of the connecting support during modification, and the connecting support and the upper support are connected through the common hexagon bolts after the welding of the upper support is completed. The structure cancels the common auxiliary frame connecting plate, the U-shaped bolt and the lower cushion block of the U-shaped bolt, has simple structure and convenient operation, and can effectively avoid various technical problems faced by the traditional structure.
Those skilled in the art will appreciate that the details of the present invention are not described in detail herein.
Claims (6)
1. The utility model provides a connection structure of tipper sub vehicle frame and solebar, includes sub vehicle frame, solebar, is equipped with the upper bracket on the ventral surface of sub vehicle frame, its characterized in that: the ventral surface of the frame longitudinal beam is provided with a connecting support, the upper support and the connecting support are arranged up and down, and the upper support and the connecting support are of a detachable connecting structure.
2. The connecting structure of the subframe and the frame rail of the dump truck according to claim 1, wherein: the upper bracket is connected with the connecting bracket through a bolt.
3. The connecting structure of the subframe and the frame rail for the dump truck according to claim 1 or 2, characterized in that: the structure of the connecting bracket is as follows: the vehicle frame longitudinal beam limiting device comprises a plate body, wherein a bolt connecting part is arranged in the middle of the plate body in a concave mode, the upper end of the plate body can transversely limit a vehicle frame, and the lower end of the plate body can be fixedly connected with a vehicle frame longitudinal beam.
4. The connecting structure of the subframe and the frame rail of the dump truck according to claim 3, wherein: the upper end part of the connecting bracket is fixedly connected with the upper bracket.
5. The connecting structure of the subframe and the frame rail for the dump truck according to claim 1, 2 or 4, wherein: and the upper end part of the connecting bracket is provided with a lightening hole.
6. The connecting structure of the subframe and the frame rail of the dump truck according to claim 5, wherein: and the inner side part of the lightening hole on the connecting bracket is welded with the auxiliary frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922471336.7U CN211252764U (en) | 2019-12-31 | 2019-12-31 | Connecting structure of auxiliary frame and frame longitudinal beam of dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922471336.7U CN211252764U (en) | 2019-12-31 | 2019-12-31 | Connecting structure of auxiliary frame and frame longitudinal beam of dump truck |
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| Publication Number | Publication Date |
|---|---|
| CN211252764U true CN211252764U (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922471336.7U Active CN211252764U (en) | 2019-12-31 | 2019-12-31 | Connecting structure of auxiliary frame and frame longitudinal beam of dump truck |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104119A (en) * | 2021-05-27 | 2021-07-13 | 福建省闽铝轻量化汽车制造有限公司 | Connecting structure of aluminum alloy auxiliary frame of cargo box |
| CN114932952A (en) * | 2022-04-02 | 2022-08-23 | 一汽解放汽车有限公司 | Coupling mechanism and vehicle |
-
2019
- 2019-12-31 CN CN201922471336.7U patent/CN211252764U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104119A (en) * | 2021-05-27 | 2021-07-13 | 福建省闽铝轻量化汽车制造有限公司 | Connecting structure of aluminum alloy auxiliary frame of cargo box |
| CN114932952A (en) * | 2022-04-02 | 2022-08-23 | 一汽解放汽车有限公司 | Coupling mechanism and vehicle |
| CN114932952B (en) * | 2022-04-02 | 2023-10-13 | 一汽解放汽车有限公司 | Coupling mechanism and vehicle |
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