CN213768726U

CN213768726U - A kind of semi-trailer carriage underframe structure

Info

Publication number: CN213768726U
Application number: CN202023004464.XU
Authority: CN
Inventors: 钱晓杰
Original assignee: Yuanshi Shunan Trailer Co ltd
Current assignee: Yuanshi Shunan Trailer Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-07-23
Anticipated expiration: 2030-12-15

Abstract

The utility model relates to the technical field of a semi-trailer underframe, and discloses an underframe structure of a semi-trailer carriage, which comprises a cross beam, both ends of the cross beam are integrally stamped with support parts, and the top of the cross beam and the top of the support part are respectively provided with several Longitudinal beams are symmetrically welded on both sides of the bottom of the beam and below the support part in the first empty groove and the second empty groove; after the welding of the four longitudinal beams is completed, the utility model picks up and welds the supporting plate to the two longitudinal beams Then, a number of first empty grooves, second empty grooves and through holes are respectively opened on the beam, the support part and the longitudinal beam, which can reduce the overall weight of the bottom frame and reduce the oil loss during driving of the semi-trailer. This improves the practicability of the device. At the same time, the protective plate will move inward when it is collided. When the protective plate moves inward, the damper will be pressed and the spring will enter a retracted state, which can protect the chassis and improve the Improve the overall aesthetics and reduce maintenance costs.

Description

Semitrailer carriage chassis structure

Technical Field

The utility model relates to a semitrailer chassis technical field specifically is a semitrailer carriage chassis structure.

Background

A semitrailer is a trailer whose axle is placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and which is equipped with a coupling device that can transmit horizontal and vertical forces to the tractor, the semitrailer typically being a three-axle semitrailer, the types of the semi-trailer are divided into eleven-meter-bin-column semi-trailers, thirteen-meter-bin-columns, low-flat-bed semi-trailers and the like, the semi-trailer is a heavy transport vehicle connected with a semi-trailer head through a traction pin, a carriage chassis is required to be installed to support and fix a carriage when the semi-trailer is used, the existing carriage chassis structure is heavy overall, excessive unnecessary oil consumption is increased in the using process after installation, the practicability of the device is reduced, the protective function is not provided, and the overall structure of the chassis is longer, scratching is inevitable during driving, so that the overall aesthetic property is reduced, and a large amount of cost is increased if the vehicle is repaired.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a semitrailer carriage chassis structure has possessed and to have alleviateed and still possess safeguard function's advantage to the whole weight of chassis, has solved the whole comparatively heavy and problem that does not possess safeguard function of current semitrailer carriage chassis structure.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a semitrailer carriage chassis structure, includes the crossbeam, the both ends homogeneous stamping of crossbeam has the supporting part, the first dead slot of a plurality of and second dead slot have been seted up respectively at the top of crossbeam and the top of supporting part, the both sides of crossbeam bottom and the equal symmetric welding in below that is located the supporting part have a longeron, two the bolt joint has the backup pad between the longeron, two one side that the backup pad is opposite to all is provided with the guard plate, the bolt joint has two dampers between one side of guard plate and the backup pad, the surface cover of damper is equipped with the spring, the both ends of spring all through the spring stationary blade respectively with backup pad and guard plate bolt joint.

Preferably, the bottom of the longitudinal beam is bolted with a beam frame.

Preferably, an auxiliary beam is bolted between one side of the longitudinal beam and the support portion.

Preferably, the bottom of the cross beam is symmetrically bolted with a storage box.

Preferably, the cross beam, the supporting part and the longitudinal beam are all made of high-strength steel plates.

Preferably, the other side of the supporting part is bolted with a hanging ring.

Preferably, a plurality of through holes are formed in the supporting plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a take up the backup pad and weld between two longerons after four longerons welding are accomplished, then seted up a plurality of first dead slot, second dead slot and through-hole on crossbeam, supporting part and longeron respectively, can lighten the whole weight of chassis, reduced the oil mass of semitrailer loss in going, improved the practicality of device;

the utility model discloses a guard plate can move inwards when receiving the collision, and the guard plate can oppress the attenuator and make the spring get into the contraction state when moving inwards, can protect the chassis, has improved holistic aesthetic property, has reduced cost of maintenance.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a schematic top view of the structure of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a cross beam; 2. a support portion; 3. a first empty slot; 4. a second empty slot; 5. a stringer; 6. a support plate; 7. a protection plate; 8. a damper; 9. a spring; 10. a beam frame; 11. an auxiliary beam; 12. a storage box; 13. a hoisting ring; 14. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a semitrailer carriage chassis structure comprises a cross beam 1, wherein supporting parts 2 are stamped on two ends of the cross beam 1 in a whole body, a plurality of first empty grooves 3 and second empty grooves 4 are respectively formed in the top of the cross beam 1 and the top of the supporting parts 2, longitudinal beams 5 are symmetrically welded on two sides of the bottom of the cross beam 1 and below the supporting parts 2, supporting plates 6 are bolted between the two longitudinal beams 5, protection plates 7 are respectively arranged on two sides, which are opposite to each other, of the two supporting plates 6, two dampers 8 are bolted between one sides of the protection plates 7 and the supporting plates 6, springs 9 are sleeved on the surfaces of the dampers 8, two ends of each spring 9 are respectively bolted with the supporting plates 6 and the protection plates 7 through spring fixing pieces, the supporting plates 6 are taken up and welded between the two longitudinal beams 5 after the four longitudinal beams 5 are welded, and then a plurality of first empty grooves 3 are respectively formed in the cross beam 1, the supporting parts 2 and the longitudinal beams 5, Second dead slot 4 and through-hole 14 can alleviate the whole weight of chassis, have reduced the oil mass of semitrailer loss during traveling, have improved the practicality of device, can remove inwards when receiving the collision through guard plate 7 simultaneously, and guard plate 7 can oppress attenuator 8 and make spring 9 get into the contraction state when removing inwards, can protect the chassis, has improved holistic aesthetic property, has reduced cost of maintenance.

Furthermore, the beam frame 10 is bolted to the bottom of the longitudinal beam 5, and the stability of the underframe can be improved through the arrangement of the beam frame 10.

Furthermore, an auxiliary beam 11 is bolted between one side of the longitudinal beam 5 and the support part 2, and the overall fixing effect of the underframe can be improved by the arrangement of the auxiliary beam 11.

Further, the bottom symmetry bolt of crossbeam 1 has storage tank 12, through the setting of storage tank 12, can save the repair tools who usually needs to use, directly takes during convenient maintenance.

Furthermore, the cross beam 1, the supporting part 2 and the longitudinal beam 5 are all made of high-strength steel plates, and the high-strength steel plates have the advantages of high strength, good plastic toughness and light weight.

Further, the opposite side bolt of supporting part 2 has rings 13, and through rings 13's setting, can be when needs move or transport the chassis, conveniently be connected with lifting device.

Furthermore, a plurality of through holes 14 are formed in the supporting plate 6, and the overall weight of the underframe can be further reduced through the arrangement of the through holes 14.

The working principle is as follows: when the carriage underframe of the semi-trailer is installed, firstly, two sides of a cross beam 1 are bent into supporting parts 2, after the cross beam 1 is bent, four longitudinal beams 5 are taken up and respectively welded to the lower parts of the supporting parts 2, after the four longitudinal beams 5 are welded, a supporting plate 6 is taken up and welded between the two longitudinal beams 5, then a plurality of first empty grooves 3, second empty grooves 4 and through holes 14 are respectively arranged on the cross beam 1, the supporting parts 2 and the longitudinal beams 5 to achieve the purpose of reducing the weight of the underframe, after the first empty grooves 3, the second empty grooves 4 and the through holes 14 are arranged, an auxiliary beam 11 is taken up, after the auxiliary beam 11 is taken up, two ends of the auxiliary beam are respectively welded between the supporting parts 2 and the longitudinal beams 5 to achieve the effect of improving the whole fixing, finally, a protection plate 7 is installed outside the supporting plate 6 under the fixing of a damper 8 and a spring 9, when the supporting plates 6 on two sides of the underframe reach objects in the transportation process, firstly, the protection plate 7 can be collided firstly, the protection plate 7 can move inwards when being collided, the protection plate 7 can press the damper 8 and enable the spring 9 to enter a contraction state when moving inwards, the spring 9 can move in an energy storage mode when entering the contraction state, the protection plate 7 can be driven to move in the opposite direction after the spring 9 enters a critical point, and the collision force on the protection plate 7 can be reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a semitrailer carriage chassis structure, includes crossbeam (1), its characterized in that: the utility model discloses a damping device, including crossbeam (1), supporting part (2) have been stamped to the homogeneous body in both ends, a plurality of first dead slot (3) and second dead slot (4) have been seted up respectively at the top of crossbeam (1) and the top of supporting part (2), the equal symmetric welding in below that the both sides of crossbeam (1) bottom and lie in supporting part (2) has longeron (5), two the bolt has backup pad (6), two between longeron (5) the bolt one side of backup pad (6) back to back all is provided with guard plate (7), the bolt has two attenuator (8) between one side of guard plate (7) and backup pad (6), the surface cover of attenuator (8) is equipped with spring (9), the both ends of spring (9) all through the spring stationary blade respectively with backup pad (6) and guard plate (7) bolt.

2. The semitrailer carriage chassis structure of claim 1, wherein: the bottom of the longitudinal beam (5) is bolted with a beam frame (10).

3. The semitrailer carriage chassis structure of claim 1, wherein: an auxiliary beam (11) is bolted between one side of the longitudinal beam (5) and the support part (2).

4. The semitrailer carriage chassis structure of claim 1, wherein: the storage boxes (12) are symmetrically bolted to the bottom of the cross beam (1).

5. The semitrailer carriage chassis structure of claim 1, wherein: the cross beam (1), the supporting part (2) and the longitudinal beam (5) are all made of high-strength steel plates.

6. The semitrailer carriage chassis structure of claim 1, wherein: the other side of the supporting part (2) is bolted with a hanging ring (13).

7. The semitrailer carriage chassis structure of claim 1, wherein: a plurality of through holes (14) are formed in the supporting plate (6).