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CN-121989851-A - Unmanned commodity circulation car automobile body anticollision energy-absorbing structure

CN121989851ACN 121989851 ACN121989851 ACN 121989851ACN-121989851-A

Abstract

The invention relates to the technical field of unmanned logistics vehicle body safety, and discloses an unmanned logistics vehicle body anti-collision energy absorbing structure which comprises a vehicle bottom, wherein a driving assembly is connected to the bottom of the vehicle bottom, a buffer assembly is connected to the inner side of the vehicle bottom, a vehicle body shell is connected to the top end of the buffer assembly, a connecting clamping frame is connected between the vehicle body shell and the vehicle bottom, and a connecting plate frame is rotatably arranged on the outer side of the connecting clamping frame. According to the invention, the piezoelectric ceramics and the PID controller in the buffer assembly can adjust damping force in real time according to collision intensity, so that self-adaptive absorption of collision energy is realized, protection capability under different working conditions is improved, the force unloading assembly adopts a hemispherical shell and a plurality of groups of connecting damping assemblies, magnetorheological fluid is combined, collision force can be absorbed and dispersed in multiple directions, structural damage caused by a single force transmission path is avoided, the positioning assembly realizes rapid absorption and positioning through the sucker and the magnet ring, installation and replacement of an anti-collision structure are facilitated, and maintenance cost is reduced.

Inventors

  • TANG MINGJUN
  • CHEN CHEN

Assignees

  • 扬州工业职业技术学院

Dates

Publication Date
20260508
Application Date
20260402

Claims (9)

  1. 1. The utility model provides an unmanned commodity circulation car automobile body anticollision energy-absorbing structure, includes vehicle bottom (1), its characterized in that bottom (1) bottom connection is provided with drive assembly (2), the inboard connection of vehicle bottom (1) is provided with buffer memory subassembly (3), buffer memory subassembly (3) top connection is provided with automobile body casing (4), be connected between automobile body casing (4) and the vehicle bottom (1) and be provided with connection clamping frame (5), connection clamping frame (5) outside rotation is provided with link plate frame (6), link plate frame (6) inboard connection is provided with unloads power subassembly (7), link plate frame (6) one side connection is provided with locating component (8), the connection of locker bottom (1) top is provided with inductor (9), automobile body casing (4) one side is provided with (222).
  2. 2. The anti-collision energy-absorbing structure of the unmanned logistics vehicle body of claim 1, wherein the connecting clamping frames (5) are U-shaped, the inner sides of the connecting clamping frames are respectively connected with an anti-skid lining (10) in a jogged mode, and one ends, close to each other, of the two groups of connecting clamping frames (5) are respectively connected with a mounting seat.
  3. 3. The anti-collision energy-absorbing structure of the unmanned logistics vehicle body, as set forth in claim 1, is characterized in that the inner sides of the vehicle bottom (1) and the vehicle body shell (4) are connected and provided with frames, and the buffer assembly (3) is connected and arranged between the frames.
  4. 4. The anti-collision energy-absorbing structure of the unmanned logistics vehicle body is characterized in that the buffer assembly (3) comprises a connecting transverse plate (31) and a connecting shell (32), a plurality of groups of movable ports are formed in one side of the connecting transverse plate (31), a limiting shaft (33) is connected between the inner sides of the movable ports, a swinging rod (34) is arranged at the middle end of the limiting shaft (33), a pulling shell (35) is rotatably arranged at the bottom end of the swinging rod (34), a connecting rod (36) is connected between the inner sides of the pulling shell (35), a damping sleeve (37) is slidably arranged at the middle end of the connecting rod (36), a guide hole (17) is formed in the top end of the swinging rod (34), and the limiting shaft (33) is slidably arranged inside the guide hole (17).
  5. 5. The anti-collision energy-absorbing structure of the unmanned logistics vehicle body according to claim 4, wherein the damping sleeve member (37) is fixedly arranged at the bottom end of the inner side of the connecting shell (32), a plurality of groups of piezoelectric ceramics (19) are connected and arranged on the inner side of the damping sleeve member (37), the connecting rods (36) are positioned between the piezoelectric ceramics (19), and a PID controller (18) is connected and arranged on one side of the inner wall of the pulling shell (35).
  6. 6. The anti-collision energy-absorbing structure of the unmanned logistics vehicle body of claim 1, wherein the inner sides of the vehicle bottom (1) and the vehicle body shell (4) are respectively connected with an inner support frame (111), and the buffer assembly (3) is connected between the two inner support frames (111).
  7. 7. The anti-collision energy-absorbing structure of the unmanned logistics vehicle body of claim 1, wherein the positioning assembly (8) comprises an inner threaded pipe (81) fixedly arranged on one side of the connecting plate frame (6), a bolt (82) is connected and arranged on the inner side of the inner threaded pipe (81), a sucker (83) is connected and arranged at one end of the bolt (82), and a magnet ring (84) is connected and arranged on one side of the sucker (83).
  8. 8. The anti-collision energy-absorbing structure of the unmanned logistics vehicle body of claim 1, wherein the force unloading assembly (7) comprises a bottom plate (71), a plurality of groups of supporting damping rods (72) are rotatably arranged at the top end of the bottom plate (71), a hemispherical shell (73) is rotatably arranged between the supporting damping rods (72), a connecting damping assembly (74) is arranged on the surface of the hemispherical shell (73) in a connecting mode, a stress plate (75) is arranged at the top end of the connecting damping assembly (74) in a connecting mode, a limiting ball head (76) is arranged at the top end of the bottom plate (71) in a connecting mode, and a pressure sensor (11) is arranged between the bottom plate (71) and the connecting plate frame (6) in a connecting mode.
  9. 9. The anti-collision energy-absorbing structure of the unmanned logistics vehicle body is characterized in that the connecting damping assembly (74) comprises a cylinder body (13) rotatably arranged on the surface of a hemispherical shell (73), one end of the cylinder body (13) is slidably provided with a guide rod (14), one end of the guide rod (14) extends into the cylinder body (13) and is connected with a piston (15) with a hole, the other end of the guide rod (14) is rotatably provided with a connecting seat (16), the connecting seat (16) is rotatably arranged on the bottom surface of a stressed plate (75), an anti-scraping coating (12) is arranged on the surface of the stressed plate (75), and magnetorheological fluid is filled in the cylinder body (13).

Description

Unmanned commodity circulation car automobile body anticollision energy-absorbing structure Technical Field The invention relates to the technical field of unmanned logistics vehicle body safety, in particular to an anti-collision energy-absorbing structure for an unmanned logistics vehicle body. Background Along with the rapid development of unmanned technique, unmanned commodity circulation car is used widely in scenes such as express delivery, garden transportation, and is different with someone driving the vehicle, unmanned commodity circulation car lacks the initiative intervention of driver to the emergency, and often operates in complicated changeable road environment, therefore put forward higher requirement to the passive security performance of automobile body structure, present, common commodity circulation car anticollision structure adopts rigid bumper or simple foam filling layer more, there is the energy-absorbing effect limited, collision force transfer route singleness, be difficult to carry out self-adaptation regulation scheduling problem according to collision intensity, in addition, current anticollision structure often with automobile body main part rigid connection, easily lead to automobile body frame to warp after the collision, cost of maintenance is high, change difficulty. Disclosure of Invention The invention aims to provide an anti-collision energy-absorbing structure of an unmanned logistics vehicle body, which aims to solve the problems in the background technology. The automobile bottom is provided with a driving assembly in a connecting mode, a buffer assembly is arranged on the inner side of the automobile bottom in a connecting mode, an automobile body shell is arranged on the top end of the buffer assembly in a connecting mode, a connecting clamping frame is arranged between the automobile body shell and the automobile bottom in a connecting mode, a connecting plate frame is arranged on the outer side of the connecting clamping frame in a rotating mode, a force unloading assembly is arranged on the inner side of the connecting plate frame in a connecting mode, a positioning assembly is arranged on one side of the connecting plate frame in a connecting mode, an inductor is arranged on the top end of the automobile bottom in a connecting mode, and a storage cabinet is arranged on one side of the automobile body shell. Preferably, the connecting clamping frames are arranged in a U shape, the inner sides of the connecting clamping frames are respectively embedded and connected with an anti-slip lining, and the two groups of the connecting clamping frames are respectively connected with an installation seat at one end, which is close to each other, of each connecting clamping frame. Preferably, the vehicle bottom and the inner side of the vehicle body shell are connected and provided with frames, and the buffer assembly is connected and arranged between the frames. Preferably, the buffer memory subassembly is including connecting diaphragm and coupling housing, the multiunit movable mouth has been seted up to connection diaphragm one side, and is connected between the movable mouth inboard and be provided with spacing axle, spacing axle middle-end is provided with the swinging arms, swinging arms bottom rotates and is provided with the shell that pulls, it is provided with the connecting rod to connect between the shell that pulls inboardly, the connecting rod middle-end slides and is provided with the damping external member, the swinging arms top connection is provided with the guiding hole, spacing axle slides and sets up in the guiding hole inboardly. Preferably, the damping external member is fixed to be set up in the inboard bottom of coupling shell, the inboard connection of damping external member is provided with multiunit piezoceramics, the connecting rod is located between the piezoceramics, draw shell inner wall one side to connect and be provided with the PID controller. Preferably, the inner side of the vehicle bottom and the inner side of the vehicle body shell are respectively connected with an inner support frame, and the buffer assembly is connected between the two inner support frames. Preferably, the positioning assembly comprises an internal thread pipe fixedly arranged on one side of the connecting plate frame, a bolt is arranged on the inner side of the internal thread pipe in a connecting mode, a sucker is arranged at one end of the bolt in a connecting mode, and a magnet ring is arranged on one side of the sucker in a connecting mode. Preferably, the force unloading assembly comprises a bottom plate, the bottom plate top rotates and is provided with multiunit support damping pole, it is provided with hemisphere casing to rotate between the support damping pole, hemisphere casing surface connection is provided with connects damping assembly, it is provided with the atress board to connect damping assembly top connection, the bottom plate top connection