CN218430766U

CN218430766U - Auxiliary balance beam of low flat-bed semi-trailer

Info

Publication number: CN218430766U
Application number: CN202222957146.8U
Authority: CN
Inventors: 李祥锋
Original assignee: Shandong Jiutong Vehicle Group Co ltd
Current assignee: Shandong Jiutong Vehicle Group Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-02-03
Anticipated expiration: 2032-11-07

Abstract

The utility model relates to a semitrailer accessory technical field, and a low flat-bed's supplementary compensating beam is disclosed, including the compensating beam main part, the top of compensating beam main part is equipped with the frame, install the swing subassembly between frame and the compensating beam main part, and the bottom of frame sets up flutedly, the fixed mounting of center department of recess tank bottom has the barrel, the outside symmetric connection of barrel has the slide bar that is connected with groove end portion, sliding sleeve has the first cover and the second of removing of matching to remove the cover on the slide bar, be connected with first spring between first removal cover and the second removal cover, the top symmetry of compensating beam main part articulates there is first connecting rod, the other end of first connecting rod is articulated mutually with the bottom of first removal cover. The utility model discloses not only effectively improve compensating beam and connected to frame's steadiness, make the compensating beam possess multiple buffering effect moreover to make the difficult emergence of compensating beam warp, greatly improve its life.

Description

Auxiliary balance beam of low flat-bed semi-trailer

Technical Field

The utility model relates to a semitrailer accessory technical field especially relates to a supplementary compensating beam of low flatbed semitrailer.

Background

The low flat-bed semitrailer usually adopts a concave beam type (or well type) frame, namely a gooseneck is arranged at the front section of the frame (a traction pin at the front section of the gooseneck is connected with a traction saddle on a tractor, the rear end of the gooseneck is connected with a semitrailer frame), a cargo bed is arranged at the middle section of the frame (the lowest part of the frame), and a wheel carrier is arranged at the rear end of the frame (containing wheels).

When the low flat-bed semi-trailer passes through an uneven road surface, the balance beam can swing together with the axle, so that the load is balanced, the existing balance beam structure is not stable enough, a good buffering effect is not achieved, the deformation is easy to occur in the using process, and the problem is solved by the aid of the auxiliary balance beam of the low flat-bed semi-trailer.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the above-mentioned background art, and the supplementary compensating beam of a low flat-bed semitrailer who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a low flatbed's supplementary compensating beam, includes the compensating beam main part, the top of compensating beam main part is equipped with the frame, install the swing subassembly between frame and the compensating beam main part, and the bottom of frame is seted up flutedly, the fixed mounting of center department of recess tank bottom has the barrel, the outside symmetric connection of barrel has the slide bar that is connected with the recess tip, slide on the slide bar and cup jointed the first cover and the second removal cover that move that match, be connected with first spring between first removal cover and the second removal cover, the top symmetry of compensating beam main part articulates there is first connecting rod, the other end of first connecting rod is articulated mutually with the bottom of first removal cover, install atmospheric pressure buffering subassembly between compensating beam main part and the barrel.

Preferably, the air pressure buffering assembly comprises a piston rod connected to the center of the top of the balance beam main body, the top end of the piston rod extends into the cylinder and is connected with a piston, a slide matched with the piston is arranged on the inner cylinder wall of the cylinder, and an air hole is formed in the top of the cylinder in a penetrating mode.

Preferably, the swing assembly comprises rotating plates symmetrically and rotatably mounted on the balance beam main body, shaft sleeves are symmetrically mounted at the top ends of the rotating plates, inner shafts are rotatably connected in the two shaft sleeves through bearings, U-shaped frames matched with the frame are connected to the inner shafts, and the U-shaped frames are rotatably connected with the side walls of the frame through hinge pins.

Preferably, a second connecting rod is hinged to the side wall of the rotating plate, and the other end of the second connecting rod is hinged to the bottom of the second moving sleeve.

Preferably, the piston rod is sleeved with a second spring, the top end of the second spring is hinged to the opening edge of the barrel, and the bottom end of the second spring is connected with the top of the balance beam main body.

Preferably, one end of the rotating plate, which is far away from the U-shaped frame, is fixedly provided with a rotating sleeve, a fixing pin matched with the rotating sleeve is fixedly arranged between the inner walls of the balance beam main body, which are close to the two ends, and the rotating plate is rotatably connected with the fixing pin through the rotating sleeve.

Compared with the prior art, the utility model provides a low flatbed's supplementary compensating beam possesses following beneficial effect:

1. this low flatbed's supplementary compensating beam, through setting up the compensating beam main part, a vehicle rack, a barrel, the slide bar, first removal cover, the second removes the cover, first spring, first link and atmospheric pressure buffering subassembly, when the axletree drives the compensating beam main part swing, the first link of cooperation is convenient for drive two first removal covers along the slide bar slides mutually back on the back, thereby it removes the cover and makes first spring take place the compression with the laminating of groove tip to drive the second, thereby carry out the part buffering to the impact force, cooperation atmospheric pressure buffering subassembly then conveniently further cushions the impact force, improve buffering effect, avoid the compensating beam main part to take place to warp as far as possible.

2. This low flatbed's supplementary compensating beam through setting up swing subassembly and second connecting rod, and the swing subassembly not only effectively improves compensating beam main part and connected to the frame's steadiness, is convenient for drive second connecting rod moreover, makes the second remove the cover and slides towards the direction of first removal cover to be favorable to improving buffering effect.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses not only effectively improve compensating beam and connected to frame's steadiness, make the compensating beam possess multiple buffering effect moreover to make the compensating beam be difficult for taking place to warp, greatly improve its life.

Drawings

Fig. 1 is a schematic structural view of an auxiliary balance beam of a low flatbed semitrailer provided by the utility model;

fig. 2 is a perspective view of the main body of the equalizing beam of the present invention;

FIG. 3 is a perspective view of the connecting portion of the rotary plate and the U-shaped frame of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 1.

In the figure: 1. a balance beam body; 2. a frame; 3. a cylinder body; 4. a slide bar; 5. a first moving sleeve; 6. a second movable sleeve; 7. a first spring; 8. a first link; 9. a piston rod; 10. a piston; 11. a slideway; 12. air holes; 13. a rotating plate; 14. a shaft sleeve; 15. an inner shaft; 16. a U-shaped frame; 17. a second link; 18. a second spring; 19. rotating the sleeve; 20. and fixing the pin.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, an auxiliary balance beam of a low flat-bed semi-trailer comprises a balance beam main body 1, a frame 2 is arranged above the balance beam main body 1, a swing assembly is arranged between the frame 2 and the balance beam main body 1, the swing assembly comprises rotating plates 13 symmetrically and rotatably arranged on the balance beam main body 1, shaft sleeves 14 are symmetrically arranged at the top ends of the rotating plates 13, inner shafts 15 are rotatably connected in the two shaft sleeves 14 through bearings, U-shaped frames 16 matched with the frame 2 are connected on the inner shafts 15, the U-shaped frames 16 are rotatably connected with the side walls of the frame 2 through pin shafts, and the stability of the connection between the balance beam main body 1 and the frame 2 is improved;

the end of the rotating plate 13 far away from the U-shaped frame 16 is fixedly provided with a rotating sleeve 19, a fixing pin 20 matched with the rotating sleeve 19 is fixedly arranged between the inner walls of the balance beam main body 1 near the two ends, and the rotating plate 13 is rotatably connected with the fixing pin 20 through the rotating sleeve 19, so that the rotating plate 13 and the balance beam main body 1 can rotate angularly.

Referring to fig. 1 and 4, a groove is formed in the bottom of a frame 2, a cylinder 3 is fixedly mounted at the center of the bottom of the groove, slide rods 4 connected with the end of the groove are symmetrically connected to the outer side of the cylinder 3, a first moving sleeve 5 and a second moving sleeve 6 which are matched are slidably sleeved on the slide rods 4, a first spring 7 is connected between the first moving sleeve 5 and the second moving sleeve 6, buffering is facilitated, a first connecting rod 8 is symmetrically hinged to the top of a balance beam main body 1, and the other end of the first connecting rod 8 is hinged to the bottom of the first moving sleeve 5;

the side wall of the rotating plate 13 is hinged with a second connecting rod 17, and the other end of the second connecting rod 17 is hinged with the bottom of the second moving sleeve 6, so that the two first moving sleeves can slide back to back and the two second moving sleeves 6 can slide oppositely when the balance beam main body 1 swings, and the first spring 7 is better extruded to improve the buffering effect.

Referring to fig. 1 and 4, an air pressure buffering assembly is installed between the balance beam main body 1 and the barrel 3, the air pressure buffering assembly comprises a piston rod 9 connected to the center of the top of the balance beam main body 1, a second spring 18 is sleeved on the piston rod 9, the top end of the second spring 18 is hinged to the barrel opening of the barrel 3 along the edge, and the bottom end of the second spring 18 is connected with the top of the balance beam main body 1, so that further buffering is facilitated;

the top of piston rod 9 extends to in the barrel 3 and is connected with piston 10, offer on the inner tube wall of barrel 3 with piston 10 assorted slide 11, the piston 10 of being convenient for slides along slide 11, the top of barrel 3 is run through and is seted up gas pocket 12, keeps the inside atmospheric pressure balance of barrel 3, piston 10 compressed air, and the air can only be slowly discharged by gas pocket 12 to form gas resistance, realize the effect of atmospheric pressure buffering.

The working principle is as follows: when the axle drives the balance beam main body 1 to swing, the rotating plate 13 and the U-shaped frame 16 rotate in a self-adaptive manner, the first moving sleeve 5 and the second moving sleeve 6 can slide oppositely along the sliding rod 4 by utilizing the first connecting rod 8 and the second connecting rod 17, so as to compress the first spring 7 to realize preliminary buffering, meanwhile, the piston rod 9 slides along the barrel 3 and compresses the second spring 18, so as to further buffer the pressure load conveniently, the piston rod 9 drives the piston 10 to slide along the slide rail 11 in the sliding process, so as to compress the internal gas of the barrel 3, the internal gas of the barrel 3 can only be slowly discharged from the air hole 12 with a smaller aperture, so as to form gas resistance, realize the effect of air pressure buffering, so that the balance beam of the low-flat-plate semitrailer has multiple buffering effects, the balance beam is not easy to deform, and the service life is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a low flatbed's supplementary compensating beam, includes the compensating beam main part, its characterized in that, the top of compensating beam main part is equipped with the frame, install the swing subassembly between frame and the compensating beam main part, and the bottom of frame sets up flutedly, the center department fixed mounting of recess tank bottom has the barrel, the outside symmetric connection of barrel has the slide bar that is connected with the recess tip, the first removal cover and the second removal cover that match have been cup jointed in the slip on the slide bar, be connected with first spring between first removal cover and the second removal cover, the top symmetry of compensating beam main part articulates there is first connecting rod, the other end of first connecting rod is articulated mutually with the bottom of first removal cover, install atmospheric pressure buffering subassembly between compensating beam main part and the barrel.

2. The auxiliary balance beam of the low flatbed semi-trailer as claimed in claim 1, wherein the air pressure buffering assembly comprises a piston rod connected to the center of the top of the balance beam main body, the top end of the piston rod extends into the cylinder and is connected with a piston, a slide matched with the piston is arranged on the inner cylinder wall of the cylinder, and an air hole is formed in the top of the cylinder in a penetrating manner.

3. The auxiliary balance beam of the low flatbed semi-trailer as claimed in claim 1, wherein the swing assembly comprises rotating plates which are symmetrically and rotatably mounted on the balance beam main body, shaft sleeves are symmetrically mounted at the top ends of the rotating plates, inner shafts are rotatably connected in the two shaft sleeves through bearings, a U-shaped frame matched with the frame is connected to the inner shafts, and the U-shaped frame is rotatably connected with the side wall of the frame through a pin shaft.

4. The auxiliary balance beam of the low flatbed semi-trailer as claimed in claim 3, wherein a second connecting rod is hinged on the side wall of the rotating plate, and the other end of the second connecting rod is hinged with the bottom of the second moving sleeve.

5. The auxiliary balance beam of the low flatbed semi-trailer as claimed in claim 2, wherein the piston rod is sleeved with a second spring, the top end of the second spring is hinged to the opening edge of the cylinder, and the bottom end of the second spring is connected to the top of the balance beam main body.

6. The auxiliary balance beam of the low flatbed semi-trailer as claimed in claim 3, wherein a rotating sleeve is fixedly installed at one end of the rotating plate far away from the U-shaped frame, a fixing pin matched with the rotating sleeve is fixedly installed between the inner walls of the balance beam main body close to the two ends, and the rotating plate is rotatably connected with the fixing pin through the rotating sleeve.