Longitudinal beam structure of semitrailer

Abstract

The utility model relates to the technical field of longitudinal beams of semitrailers, in particular to a longitudinal beam structure of a semitrailer, which comprises an upper wing plate, a lower wing plate and a plurality of support components, each support component comprises a cross beam and two buffer structures, and each buffer structure comprises a buffer frame, a force unloading piece, a force unloading plate, two support frames and two connecting pieces. Pressure or impact force transmitted by the upper wing plate is evenly distributed to each buffering structure, the supporting frame transmits force to the force unloading plate, and the force unloading plate conducts buffering operation through the force unloading piece in the buffering frame so that the impact force can be absorbed and relieved. According to the longitudinal beam of the semitrailer with the double-web structure, impact force borne by the upper wing plate and the lower wing plate can be evenly distributed, force concentration is reduced, and therefore the problem that the service life of an existing longitudinal beam of the semitrailer with the double-web structure is shortened due to the fact that stress is excessively concentrated in the using process, the longitudinal beam can bear large impact force, and the longitudinal beam is prone to being damaged and deformed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of longitudinal beams of semi-trailers, in particular to a longitudinal beam structure of a semi-trailer. Background Art

[0002] The longitudinal beam of a semi-trailer is the main load-bearing component of the semi-trailer. The web of the longitudinal beam is welded to the upper wing plate and the lower wing plate into an "I" shape, and the web bears the main forces and moments.

[0003] The prior art (CN205952072U) discloses a semi-trailer longitudinal beam with a double-web structure, including an upper wing plate, a lower wing plate and a web plate. The upper wing plate and the lower wing plate are both convex-concave structures, and the web plate is a flat plate structure with high bearing capacity, simple structure and light weight.

[0004] However, in the above manner, the connection between the upper wing plate and the lower wing plate is a single web which does not have a shock-absorbing effect. During use, the force is too concentrated and the longitudinal beam will be subjected to a large impact force, which can easily lead to damage and deformation, thereby reducing its service life. Utility Model Content

[0005] The utility model aims to provide a longitudinal beam structure for a semi-trailer, aiming to solve the problem that the existing longitudinal beam of a semi-trailer with a double-web structure has a single web connecting the upper wing plate and the lower wing plate, which has no shock-absorbing effect, and the longitudinal beam is subjected to excessively concentrated force during use, which is easy to cause damage and deformation, thereby reducing its service life.

[0006] To achieve the above object, the utility model provides a longitudinal beam structure of a semi-trailer, comprising an upper wing plate, a lower wing plate and a plurality of supporting components, wherein the lower wing plate is located on one side of the upper wing plate.

[0007] The support assembly includes a crossbeam and two buffer structures;

[0008] The crossbeam is fixedly connected to the upper wing plate and the lower wing plate respectively, and is located between the upper wing plate and the lower wing plate; the two buffer structures are respectively located on both sides of the crossbeam; the buffer structure includes a buffer frame, a force unloading member, a force unloading plate, two support frames and two connecting members, the buffer frame is fixedly connected to the crossbeam and is located on one side of the crossbeam; the force unloading member is arranged inside the buffer frame; the force unloading plate is fixedly connected to the force unloading member and is located on one side of the force unloading member; the two support frames are fixedly connected to the force unloading plate respectively, and are respectively located on one side of the force unloading plate; the two connecting members are respectively arranged on one side of the two support frames.

[0009] Wherein, the force unloading member includes a load-bearing seat, a first rod, a second rod, an expansion block and a buffer portion, the load-bearing seat is fixedly connected to the buffer frame and is located on one side of the buffer frame; the first rod is fixedly connected to the load-bearing seat and is located on one side of the load-bearing seat; the second rod is slidably connected to the first rod and is located on one side of the first rod; the expansion block is fixedly connected to the second rod and fixedly connected to the force unloading plate and is located on one side of the second rod; the buffer portion is arranged between the first rod and the second rod.

[0010] Wherein, the buffer part includes a first damper and a buffer spring, the first damper is fixedly connected to the first rod and the second rod respectively, and is located between the first rod and the second rod; the buffer spring is fixedly connected to the load-bearing seat and the force unloading plate respectively, and is located between the load-bearing seat and the force unloading plate.

[0011] Wherein, the connecting part includes a buffer layer, a connecting seat and a connecting frame, the buffer layer is fixedly connected to the upper wing plate and is located on one side of the upper wing plate; the connecting seat is fixedly connected to the buffer layer and is located on one side of the buffer layer; the connecting frame is fixedly connected to the connecting seat, and is rotatably connected to the support frame, and is located on one side of the connecting seat.

[0012] Wherein, the buffer structure further includes longitudinal buffer members, and the longitudinal buffer members are respectively arranged between the upper wing plate and the lower wing plate.

[0013] Wherein, the longitudinal buffer member includes a first buffer rod, a buffer shell, a second damper and a second buffer rod, the first buffer rod is fixedly connected to the upper wing plate and is located at one side of the upper wing plate; the buffer shell is slidably connected to the first buffer rod and is located at one side of the first buffer rod; the second damper is fixedly connected to the first buffer rod and is located at one side of the first buffer rod; the second buffer rod is fixedly connected to the second damper, slidably connected to the buffer shell, and then fixedly connected to the lower wing plate and is located at one side of the second damper.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By arranging the crossbeam, the buffer frame, the unloading member, the unloading plate, the two support frames and the two connecting members, the crossbeam is used to support the installation of the upper wing plate and the lower wing plate to form a longitudinal beam of the semi-trailer. When bearing load during use, the pressure or impact force transmitted by the upper wing plate is evenly distributed to each of the buffer structures, and the force is transmitted to the support frame through the connecting member, and then the force is transmitted to the unloading plate through the support frame. The unloading plate performs a buffering operation through the unloading member in the buffer frame so that the impact force can be absorbed and alleviated, so that the impact force borne by the upper wing plate and the lower wing plate can be evenly distributed to reduce the concentration of force, thereby solving the problem that the existing longitudinal beam of the semi-trailer with a double-web structure is subjected to excessively concentrated force during use, and the longitudinal beam will be subjected to a large impact force, which is easy to cause damage and deformation and reduce its service life.

[0016] 2. By arranging the load-bearing seat, the first rod, the second rod, the expansion block and the buffer part, the load-bearing seat is used to support the first rod, and the first rod and the second rod cooperate with the expansion block and the buffer part to absorb the impact force transmitted by the unloading plate, and perform buffering and absorption to further reduce the impact force on the entire longitudinal beam.

[0017] 3. By setting the buffer layer, the connecting seat and the connecting frame, the connecting seat cooperates with the buffer layer to be fixed to the upper wing panel and the lower wing panel to assist in supporting the upper wing panel and the lower wing panel. When the longitudinal beam receives an impact force, the buffer layer initially absorbs the impact force and then transfers it to the connecting seat. The connecting seat transfers the force to the support frame on the connecting frame, and then transfers the impact force to the force unloading plate through the support frame to absorb and distribute the force, thereby reducing the impact force on the entire longitudinal beam.

[0018] 4. By setting the first buffer rod, the buffer shell, the second damper and the second buffer rod, the first buffer rod and the second buffer rod cooperate with the buffer shell to provide auxiliary support to the upper wing panel and the lower wing panel, and cooperate with the second damper to absorb and buffer when subjected to impact force, thereby further dispersing the impact force absorbed by the longitudinal beam and increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0020] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0021] Figure 2It is an overall front view of the first embodiment of the utility model.

[0022] Figure 3 It is a cross-sectional view of the buffer frame, the force unloading member and the force unloading plate of the first embodiment of the utility model.

[0023] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0024] Figure 5 It is a cross-sectional view of a longitudinal buffer member according to a second embodiment of the present utility model.

[0025] 101-upper wing plate, 102-lower wing plate, 103-cross beam, 104-buffer structure, 105-buffer frame, 106-load member, 107-load plate, 108-support frame, 109-connecting member, 110-load-bearing seat, 111-first rod, 112-second rod, 113-expansion block, 114-buffer part, 115-first damper, 116-buffer spring, 117-buffer layer, 118-connecting seat, 119-connecting frame, 201-longitudinal buffer member, 202-first buffer rod, 203-buffer shell, 204-second damper, 205-second buffer rod. DETAILED DESCRIPTION

[0026] The first embodiment of the present application is:

[0027] See also Figure 1-Figure 3 ,in, Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 It is a front view of the whole of the first embodiment of the utility model. Figure 3 It is a cross-sectional view of the buffer frame, the force unloading member and the force unloading plate of the first embodiment of the utility model.

[0028] The utility model discloses a longitudinal beam structure of a semi-trailer, comprising an upper wing plate 101, a lower wing plate 102 and a plurality of supporting components, wherein the supporting components comprise a cross beam 103 and two buffer structures 104, wherein the buffer structure 104 comprises a buffer frame 105, a force unloading member 106, a force unloading plate 107, two support frames 108 and two connecting members 109, wherein the force unloading member 106 comprises a load-bearing seat 109, a first rod 110, a second rod 111, an expansion block 112 and a buffer portion 114, wherein the buffer portion 114 comprises a first damper 115 and a buffer spring 116, wherein the connecting member 109 comprises a buffer layer 117, a connecting seat 118 and a connecting frame 119, and the above-mentioned scheme solves the problem that the existing longitudinal beam of a semi-trailer with a double-web structure is solved, the connection between the upper wing plate 101 and the lower wing plate 102 is a single web which does not have a shock-absorbing effect, and the longitudinal beam is subjected to excessively concentrated force during use, and is subjected to a large impact force, which is easily damaged and deformed, thereby reducing its service life.

[0029] According to this specific embodiment, the upper wing panel 101 and the lower wing panel 102 cooperate with a plurality of the supporting components to form a longitudinal beam.

[0030] The crossbeam 103 is fixedly connected to the upper wing panel 101 and the lower wing panel 102, respectively, and is located between the upper wing panel 101 and the lower wing panel 102; the two buffer structures 104 are respectively located on both sides of the crossbeam 103; the buffer frame 105 is fixedly connected to the crossbeam 103 and is located on one side of the crossbeam 103; the force unloading member 106 is arranged inside the buffer frame 105; the force unloading plate 107 is fixedly connected to the force unloading member 106 and is located on one side of the force unloading member 106; the two support frames 108 are fixedly connected to the force unloading plate 107 and are respectively located on one side of the force unloading plate 107; the two connecting members 109 are respectively arranged on one side of the two support frames 108. The crossbeam 103 is used to support the upper wing panel 101 and the lower wing panel 1 02 is installed to form a semi-trailer longitudinal beam. When bearing load during use, the pressure or impact force transmitted by the upper wing plate 101 is evenly distributed to each of the buffer structures 104, and the force is transmitted to the support frame 108 through the connecting piece 109, and then the force is transmitted to the unloading plate 107 through the support frame 108. The unloading plate 107 performs a buffering operation through the unloading piece 106 in the buffer frame 105 so that the impact force can be absorbed and alleviated, so that the impact force borne by the upper wing plate 101 and the lower wing plate 102 can be evenly distributed to reduce the concentration of force, thereby solving the problem of the existing double-web structure semi-trailer longitudinal beam, that the force is too concentrated during use, the longitudinal beam will be subjected to a large impact force, which is easy to cause damage and deformation and reduce its service life.

[0031] Secondly, the load-bearing seat 109 is fixedly connected to the buffer frame 105 and is located on one side of the buffer frame 105; the first rod 110 is fixedly connected to the load-bearing seat 109 and is located on one side of the load-bearing seat 109; the second rod 111 is slidably connected to the first rod 110 and is located on one side of the first rod 110; the expansion block 112 is fixedly connected to the second rod 111 and is fixedly connected to the force unloading plate 107 and is located on one side of the second rod 111; the buffer portion 114 is arranged between the first rod 110 and the second rod 111, and the load-bearing seat 109 is used to support the first rod 110, and the first rod 110 and the second rod 111 cooperate with the expansion block 112 and the buffer portion 114 to absorb the impact force transmitted from the force unloading plate 107, and perform buffering and absorption to further reduce the impact force on the overall longitudinal beam.

[0032] Again, the first damper 115 is fixedly connected to the first rod 110 and the second rod 111 respectively, and is located between the first rod 110 and the second rod 111; the buffer spring 116 is fixedly connected to the load-bearing seat 109 and the force unloading plate 107 respectively, and is located between the load-bearing seat 109 and the force unloading plate 107. The first damper 115 cooperates with the buffer spring 116 to absorb and reduce the impact force transmitted from the force unloading plate 107, thereby reducing the impact force on the entire longitudinal beam.

[0033] In addition, the buffer layer 117 is fixedly connected to the upper wing panel 101 and is located on one side of the upper wing panel 101; the connecting seat 118 is fixedly connected to the buffer layer 117 and is located on one side of the buffer layer 117; the connecting frame 119 is fixedly connected to the connecting seat 118, and is rotatably connected to the support frame 108, and is located on one side of the connecting seat 118; the connecting seat 118 cooperates with the buffer layer 117 to be fixed to the upper wing panel 101 and the lower wing panel 102, and is used to assist in supporting the upper wing panel 101 and the lower wing panel 102. When the longitudinal beam receives an impact force, the buffer layer 117 initially absorbs the impact force and then transmits it to the connecting seat 118. The connecting seat 118 transmits the force to the support frame 108 on the connecting frame 119, and then transmits the impact force to the force unloading plate 107 through the support frame 108 to absorb and distribute the force, thereby reducing the impact force on the entire longitudinal beam.

[0034] In the longitudinal beam structure of a semi-trailer described in the utility model, the cross beam 103 is used to support the installation of the upper wing plate 101 and the lower wing plate 102 to form the longitudinal beam of the semi-trailer. When the longitudinal beam receives an impact force, the buffer layer 117 initially absorbs the impact force and then transmits it to the connecting seat 118. The connecting seat 118 transmits the force to the support frame 108 on the connecting frame 119, and the impact force is transmitted to the unloading plate 107 through the support frame 108 to absorb and distribute the force. When the force is transmitted to the unloading plate 107 through the support frame 108, the first rod 11 0 and the second rod 111 cooperate with the expansion block 112 to unload the force, the first damper 115 cooperates with the buffer spring 116 to absorb and reduce the impact force transmitted by the unloading plate 107 and then reduce the impact force on the entire longitudinal beam, and perform buffering and absorption to further reduce the impact force on the entire longitudinal beam, so that the impact force borne by the upper wing plate 101 and the lower wing plate 102 can be evenly distributed to reduce the concentration of force, thereby solving the problem that the existing semi-trailer longitudinal beam with a double-web structure is subjected to excessively concentrated force during use, the longitudinal beam will be subjected to a large impact force, which is easy to cause damage and deformation and reduce its service life.

[0035] The second embodiment of the present application is:

[0036] See also Figure 4-Figure 5 ,in, Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model. Figure 5 It is a cross-sectional view of a longitudinal buffer member according to a second embodiment of the present utility model.

[0037] On the basis of the first embodiment, the utility model provides a longitudinal beam structure of a semitrailer, wherein the buffer structure 104 further includes a longitudinal buffer member 201 , and the longitudinal buffer member 201 includes a first buffer rod 202 , a buffer shell 203 , a second damper 204 and a second buffer rod 205 .

[0038] The longitudinal buffer members 201 are respectively arranged between the upper wing panel 101 and the lower wing panel 102 , and the longitudinal buffer members 201 are used to assist in absorbing the longitudinal impact force between the upper wing panel 101 and the lower wing panel 102 .

[0039] Secondly, the first buffer rod 202 is fixedly connected to the upper wing panel 101 and is located on one side of the upper wing panel 101; the buffer shell 203 is slidably connected to the first buffer rod 202 and is located on one side of the first buffer rod 202; the second damper 204 is fixedly connected to the first buffer rod 202 and is located on one side of the first buffer rod 202; the second buffer rod 205 is fixedly connected to the second damper 204 and slidably connected to the buffer shell 203, and then fixedly connected to the lower wing panel 102 and is located on one side of the second damper 204. The first buffer rod 202 and the second buffer rod 205 cooperate with the buffer shell 203 to provide auxiliary support to the upper wing panel 101 and the lower wing panel 102, and cooperate with the second damper 204 to absorb and buffer when subjected to impact force, further dispersing the impact force absorbed by the longitudinal beam and increasing its service life.

[0040] In the longitudinal beam structure of a semi-trailer described in this embodiment, the first buffer rod 202 and the second buffer rod 205 cooperate with the buffer shell 203 to provide auxiliary support to the upper wing plate 101 and the lower wing plate 102, and cooperate with the second damper 204 to absorb and buffer when subjected to impact force, thereby further dispersing the impact force absorbed by the longitudinal beam and increasing its service life.

[0041] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A longitudinal beam structure of a semi-trailer, comprising an upper wing plate and a lower wing plate, wherein the lower wing plate is located on one side of the upper wing plate, and characterized in that: Also includes multiple support components, The support assembly includes a crossbeam and two buffer structures; The cross beam is fixedly connected to the upper wing plate and the lower wing plate respectively, and is located between the upper wing plate and the lower wing plate; the two buffer structures are respectively located on both sides of the cross beam; the buffer structure includes a buffer frame, a force unloading member, a force unloading plate, two support frames and two connecting members, the buffer frame is fixedly connected to the cross beam and is located on one side of the cross beam; the force unloading member is arranged inside the buffer frame; The unloading plate is fixedly connected to the unloading member and is located on one side of the unloading member; the two support frames are respectively fixedly connected to the unloading plate and are respectively located on one side of the unloading plate; the two connecting members are respectively arranged on one side of the two support frames.

2. A longitudinal beam structure of a semitrailer as claimed in claim 1, characterized in that: The force unloading member includes a load-bearing seat, a first rod, a second rod, an expansion block and a buffer portion, wherein the load-bearing seat is fixedly connected to the buffer frame and is located at one side of the buffer frame; the first rod is fixedly connected to the load-bearing seat and is located at one side of the load-bearing seat; the second rod is slidably connected to the first rod and is located at one side of the first rod; the expansion block is fixedly connected to the second rod and fixedly connected to the force unloading plate and is located at one side of the second rod; the buffer portion is arranged between the first rod and the second rod.

3. A longitudinal beam structure of a semitrailer as claimed in claim 2, characterized in that: The buffer part includes a first damper and a buffer spring. The first damper is fixedly connected to the first rod and the second rod respectively and is located between the first rod and the second rod; the buffer spring is fixedly connected to the load-bearing seat and the force unloading plate respectively and is located between the load-bearing seat and the force unloading plate.

4. A longitudinal beam structure of a semitrailer as claimed in claim 3, characterized in that: The connecting member includes a buffer layer, a connecting seat and a connecting frame. The buffer layer is fixedly connected to the upper wing plate and is located on one side of the upper wing plate; the connecting seat is fixedly connected to the buffer layer and is located on one side of the buffer layer; the connecting frame is fixedly connected to the connecting seat, rotatably connected to the support frame, and is located on one side of the connecting seat.

5. A longitudinal beam structure of a semitrailer as claimed in claim 4, characterized in that: The buffer structure further includes longitudinal buffer members, which are respectively arranged between the upper wing plate and the lower wing plate.

6. A longitudinal beam structure of a semitrailer as claimed in claim 5, characterized in that: The longitudinal buffer member includes a first buffer rod, a buffer shell, a second damper and a second buffer rod, the first buffer rod is fixedly connected to the upper wing plate and is located at one side of the upper wing plate; the buffer shell is slidably connected to the first buffer rod and is located at one side of the first buffer rod; the second damper is fixedly connected to the first buffer rod and is located at one side of the first buffer rod; the second buffer rod is fixedly connected to the second damper, slidably connected to the buffer shell, and then fixedly connected to the lower wing plate and located at one side of the second damper.

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