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CN-121973861-A - Civil engineering material handling AGV dolly

CN121973861ACN 121973861 ACN121973861 ACN 121973861ACN-121973861-A

Abstract

The invention discloses an AGV (automatic guided vehicle) for carrying materials in civil engineering, which relates to the technical field of automatic guided vehicles and specifically comprises a bearing table, a guide part arranged at the front end of the bearing table and crawler traveling parts arranged at four corners of the bottom of the bearing table, wherein the crawler traveling parts comprise a bracket fixed on the side wall of the bottom of the bearing table and a first support arm which is arranged at two sides of the bottom of the bracket in an inclined manner, the end part of the first support arm is provided with a second support arm, two ends of the second support arm are connected with supporting traveling wheels through wheel shafts in a rotating manner, and one side of the bracket is also provided with a driving wheel. The crawler belt walking parts are arranged and supported by the crawler belt, so that the crawler belt walking device is suitable for the road surface condition of a construction site, and the crawler belt walking parts are arranged into four groups, and each group is independently arranged, so that the escaping capability of the whole AGV trolley is improved, the functions of in-situ steering and the like can be realized, and the reliable transportation capability of the AGV trolley on the road surface of the construction site is improved.

Inventors

  • WANG XUEZHI
  • DONG WEI
  • WANG CHUNXIA
  • XIN MING
  • HE JINGJING

Assignees

  • 辽宁工业大学

Dates

Publication Date
20260505
Application Date
20260225

Claims (10)

  1. 1. The utility model provides a civil engineering material handling AGV dolly, includes plummer (1), sets up guide part (3) in plummer (1) front end and sets up crawler-type running part (2) in plummer (1) bottom four corners, its characterized in that, The crawler belt walking part (2) comprises a support (6) fixed on the side wall of the bottom of the bearing table (1) and a first support arm (7) which is arranged at two sides of the bottom of the support (6) in an inclined mode, two support arms (10) are arranged at the end portions of the first support arm (7), two ends of the second support arm (10) are rotatably connected with supporting travelling wheels (8) through wheel shafts (11), one side of the support (6) is further provided with a driving wheel (5), the outer side of the driving wheel (5) and the outer side of the supporting travelling wheels (8) are matched with one crawler belt (4), the driving wheel (5) is matched with the inner side of the crawler belt (4) in a meshed transmission mode, and the bottom of the supporting travelling wheels (8) is matched with the inner side of the crawler belt (4) in a rolling mode.
  2. 2. The civil engineering material handling AGV trolley according to claim 1, wherein the inner side of the bracket (6) is fixed with a biaxial rotation driving member (9) by bolts, and the output shaft of the biaxial rotation driving member (9) is connected to the inner wall of the driving wheel (5) by keys.
  3. 3. The civil engineering material handling AGV according to claim 1 wherein the first arm (7) is rotatably connected to the bracket (6), and the second arm (10) is rotatably connected to the first arm (7), one end of the first arm (7) away from the supporting travelling wheel (8) is rotatably connected to the connecting rod (12) through the connecting shaft (14), two sides of the other end of the connecting rod (12) are rotatably connected to a slider (13) through the connecting shaft (14), and the slider (13) is transversely slidably connected to the inner wall of the bracket (6).
  4. 4. A civil engineering material handling AGV trolley according to claim 3, characterized in that the inner wall of the frame (6) is provided with a resilient frame (15), both sides of the resilient frame (15) being in resilient contact with the side walls of the slide (13).
  5. 5. The civil engineering material handling AGV trolley according to claim 4, wherein the elastic frame (15) is an integrally formed structure, and the structure comprises a base plate (18) located in the middle and arc elastic parts (16) located at two sides of the base plate (18), a cavity gap is formed between the arc elastic parts (16) and the base plate (18), and rib elastic parts (17) arranged in an inclined manner are arranged in the cavity gap.
  6. 6. The civil engineering material handling AGV trolley according to claim 1 is characterized in that two first expansion brackets (19) are symmetrically arranged at the bottom of the bearing table (1) in a sliding mode, a limiting bracket (21) is fixed on the outer wall of the bottom of the bearing table (1) through bolts, a bidirectional telescopic rod (22) is fixed on the inner side of the limiting bracket (21) through bolts, a limiting plate (23) is fixed on the outer wall of the bottom of the first expansion bracket (19) through bolts, and telescopic ends of the bidirectional telescopic rod (22) are fixed on the side walls of the limiting plate (23) through bolts.
  7. 7. The civil engineering material handling AGV trolley according to claim 6 wherein the two sides of the first extension frame (19) are rotatably connected with a limiting wheel (20), and a limiting frame (21) in rolling limiting fit with the limiting wheel (20) is arranged at the bottom of the bearing table (1).
  8. 8. The civil engineering material handling AGV cart according to claim 6, wherein a first reinforcing rib (24) is welded to an outer wall of a bottom portion of one end of the first expansion frame (19), a second reinforcing rib (25) is welded to a side wall of a bottom end of the first reinforcing rib (24), and the other end of the second reinforcing rib (25) is welded to an outer wall of a bottom portion of the other end of the first expansion frame (19).
  9. 9. The civil engineering material handling AGV trolley of claim 6, wherein the outboard end of the first extension frame (19) is rotatably connected to a second extension frame (26) by a frame shaft (27); a gap is formed between the top of the first expansion frame (19) and the bottom of the bearing table (1), and the height of the gap is at least greater than the thickness of the second expansion frame (26); The outer wall of the expansion bracket II (26) is fixed with a first limiting shaft (30), the side wall of the expansion bracket I (19) is fixed with a second limiting shaft (33), and the outer walls of the first limiting shaft (30) and the second limiting shaft (33) are provided with the same telescopic control locking handle.
  10. 10. The civil engineering material handling AGV trolley according to claim 9, wherein the telescopic control locking handle comprises two collars (29), two threaded rods (28) welded to the side walls of the collars (29), and an internally threaded cylinder (34) screwed to the outer walls of the two threaded rods (28), the internally threaded cylinder (34) being in the opposite sense of rotation to the threaded connection of the two threaded rods (28); The inner walls of the first limiting shaft (30) and the second limiting shaft (33) are respectively provided with a pin hole (31) which can be matched with a bayonet lock for use, and the side wall of the internal thread cylinder (34) is provided with a jack (32) through which a tool can penetrate.

Description

Civil engineering material handling AGV dolly Technical Field The invention relates to the technical field of automatic guided vehicles, in particular to an AGV (automatic guided vehicle) for carrying materials in civil engineering. Background An AGV is an "automated guided vehicle," which refers to an unmanned vehicle equipped with an electromagnetic, optical, visual, or laser automated guide device that is capable of traveling along a predetermined path. The field of automatic material transportation is widely applied. Through retrieving, chinese patent bulletin number CN 219382303U's patent discloses an unmanned carrier buffer stop of AGV, including the unmanned carrier body of AGV and place the platform, the top fixedly connected with of the unmanned carrier body of AGV is fixed storehouse, be provided with buffer assembly on the unmanned carrier body of AGV, buffer assembly includes the attenuator that is a plurality of and with fixed storehouse inner wall fixed connection, the inside fixedly connected with slide bar of fixed storehouse, the outside sliding connection of slide bar has the sliding block that is two in quantity. The above patent has the defects that the traveling wheels are utilized to travel, the traveling wheels can only be limited to travel on a paved road surface of a factory building, the ground of a construction site is soft, rugged and sloped, and the wheel type AGV is easy to sink, slip or overturn. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides an AGV for carrying materials in civil engineering. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a civil engineering material transport AGV dolly, includes the plummer, sets up the guide part in plummer front end and sets up the track running gear in plummer bottom four corners; The crawler belt walking part comprises a support fixed on the side wall of the bottom of the bearing table and a first support arm which is arranged on two sides of the bottom of the support and is obliquely arranged, the end part of the first support arm is provided with a second support arm, two ends of the second support arm are respectively connected with a supporting walking wheel through a wheel shaft in a rotating mode, one side of the support is also provided with a driving wheel, the outer side of the driving wheel and the outer side of the supporting walking wheel are matched with the same crawler belt, the driving wheel is matched with the inner side of the crawler belt in a meshed transmission mode, and the bottom of the supporting walking wheel is matched with the inner side of the crawler belt in a rolling mode. Preferably, the inner side of the bracket is fixedly provided with a double-shaft rotary driving piece through a bolt, and an output shaft of the double-shaft rotary driving piece is connected with the inner wall of the driving wheel through a key. The first support arm is rotationally connected with the support, the second support arm is rotationally connected with the support arm, one end of the first support arm far away from the supporting travelling wheel is rotationally connected with a connecting rod through a connecting shaft, two sides of the other end of the connecting rod are rotationally connected with a sliding block through connecting shafts, and the sliding block is transversely and slidably connected with the inner wall of the support. On the basis of the scheme, an elastic frame is arranged on the inner wall of the bracket, and two sides of the elastic frame are elastically contacted with the side wall of the sliding block. In the scheme, the elastic frame is of an integrated structure, the elastic frame structurally comprises a base plate positioned in the middle and arc elastic parts positioned on two sides of the base plate, a cavity gap is formed between the arc elastic parts and the base plate, and rib elastic parts which are obliquely arranged are arranged in the cavity gap. The telescopic support is characterized in that two first expansion frames are symmetrically arranged at the bottom of the bearing table in a sliding mode, limiting frames are fixed on the outer wall of the bottom of the bearing table through bolts, two-way telescopic rods are fixed on the inner sides of the limiting frames through bolts, limiting plates are fixed on the outer wall of the bottom of the first expansion frames through bolts, and telescopic ends of the two-way telescopic rods are fixed on the side walls of the limiting plates through bolts. Simultaneously, the both sides of expansion frame one all rotate and are connected with spacing wheel, and the bottom of plummer is provided with the spacing with spacing wheel roll spacing complex spacing. As one preferable mode of the invention, the outer wall of the bottom of one end of the expansion frame I is welded with a first reinforcing rib, the side wall of the