Automatic guide transport vehicle for industrial production and distribution

Abstract

The invention relates to the technical field of automatic guide transport vehicles, and discloses an automatic guide transport vehicle for industrial production distribution, which comprises a guide vehicle main body, a jacking mechanism, an anti-collision mechanism and a moving mechanism, the jacking mechanism is installed on the guiding vehicle body and comprises a jacking plate, a driving source, a gear transmission assembly, four lifting sleeves and four transmission screws, the jacking plate is arranged at the top of the guiding vehicle body, and the four lifting sleeves are evenly and fixedly installed at the bottom of the jacking plate. According to the jacking mechanism provided by the invention, a transmission mode of a motor and a transmission screw is mainly adopted to realize the jacking action of the jacking mechanism, and compared with a transmission hydraulic driving mode, a servo motor and a gear transmission assembly are matched for use in the aspects of precision and control, so that the function of accurately controlling the height of a jacking plate can be realized, and the positioning precision can reach a millimeter level; and high-precision operation scenes such as precise carrying and placement of materials in an electronic element assembly line can be well adapted.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic guided transport vehicles, and more specifically, to an automatic guided transport vehicle for industrial production and distribution. Background Art

[0002] An automated guided vehicle (AGV) is an unmanned material handling device that can automatically travel according to preset paths and procedures, and plays an important role in industrial production, warehousing and logistics. AGVs are usually equipped with advanced navigation systems, such as laser navigation, visual navigation, magnetic navigation, etc., to ensure accurate driving paths and positioning. At the same time, it also has an intelligent control system that can be seamlessly connected with the company's production management system to achieve automated handling, storage and distribution of materials. It has the characteristics of high efficiency, accuracy, flexibility and safety, which can not only reduce labor costs and improve production efficiency, but also effectively improve the level of intelligent logistics management.

[0003] In the prior art, the lifting mechanism used in the automatic guided transport vehicle in industrial production is mostly driven by hydraulic cylinders. Since the hydraulic cylinder driving lifting method is mainly affected by the compressibility of hydraulic oil, oil temperature changes and control valve accuracy in terms of accuracy and control, it can only reach the centimeter level, with a narrow speed adjustment range and slow response. When applied to high-precision operation scenarios such as precise handling and placement of materials in electronic component assembly lines, its lifting accuracy and response speed are difficult to meet the needs of current operation scenarios; in addition, the hydraulic drive system is greatly affected by changes in ambient temperature, and the viscosity of its hydraulic oil will change significantly with temperature changes. At low temperatures, the viscosity increases, which may cause difficulties in starting the hydraulic system and slow movement; at high temperatures, the viscosity decreases, which may cause increased leakage, unstable system pressure and other problems. Therefore, there is an urgent need for an automatic guided transport vehicle that can be applied to high-precision operation scenarios and can meet the requirements of high performance, high reliability, energy saving and environmental protection of equipment. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic guided transport vehicle for industrial production and distribution to solve the above-mentioned technical problems.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0006] The present invention provides an automatic guided transport vehicle for industrial production and distribution, comprising: a guide vehicle body, a lifting mechanism, an anti-collision mechanism and a moving mechanism;

[0007] The jacking mechanism is installed on the guide vehicle body, and the jacking mechanism includes a jacking plate, a driving source, a gear transmission assembly, four lifting sleeves and four transmission screws. The jacking plate is arranged on the top of the guide vehicle body, and the four lifting sleeves are evenly fixedly installed on the bottom of the jacking plate. The four lifting sleeves are correspondingly threadedly sleeved on the outside of a plurality of transmission screws, and the bottom ends of the four transmission screws are rotatably connected to the inner side of the guide vehicle body, the driving end of the driving source is matched with the gear transmission assembly for transmission connection, and the gear transmission assembly is matched with the four transmission screws for transmission connection;

[0008] The gear transmission assembly includes a first bevel gear, a second bevel gear, a transmission shaft, a transmission belt, two third bevel gears, two fourth bevel gears, two fifth bevel gears and four pulleys. The first bevel gear is fixed to the driving end of the servo motor, the second bevel gear is rotatably installed on the inner side of the guide vehicle body, the bottom of the first bevel gear is meshed with one side of the second bevel gear, the transmission shaft is rotatably installed on the inner side of the guide vehicle body, the two third bevel gears are symmetrically fixedly sleeved on the outer side of the transmission shaft, and the bottoms of the two third bevel gears are respectively meshed with the two sides of the second bevel gear, the two fourth bevel gears are symmetrically fixedly installed at both ends of the transmission shaft, the two fifth bevel gears are correspondingly fixedly sleeved on the outer sides of the two transmission screws close to one side of the servo motor, and the two fourth bevel gears are correspondingly meshed with the two fifth bevel gears, the four pulleys are correspondingly fixedly sleeved on the outer sides of the four transmission screws, and the four pulleys are connected through transmission belts.

[0009] As a further optimization scheme of the present invention, the lifting plate is a rectangular plate, the four lifting sleeves are correspondingly distributed at the four corner positions of the bottom of the lifting plate, the driving source is a servo motor, and the servo motor is fixedly installed on the inner side of the guide vehicle body.

[0010] As a further optimization scheme of the present invention, the four corner positions at the bottom of the jacking plate are provided with sliding limit assemblies, and the sliding limit assemblies include a supporting slide, a limiting rod, a buffer contact body and a buffer spring. The top of the supporting slide is fixed to the bottom of the jacking plate, and the bottom of the supporting slide is in contact with the inner side of the guide vehicle body. The bottom of the limiting rod is fixed to the inner side of the guide vehicle body, and one side of the supporting slide is slidingly connected to the outer side of the limiting rod. The buffer contact body is slidably sleeved on the top of the limiting rod, and the buffer spring is sleeved on the upper end of the outer side of the limiting rod, and its two ends are respectively fixed to the bottom of the buffer contact body and the outer side of the limiting rod, and the top of the buffer contact body is in contact with the upper end of the supporting slide.

[0011] As a further optimization scheme of the present invention, the anti-collision mechanism is arranged on one side of the guide vehicle body, and the anti-collision mechanism includes an anti-collision body, a lifting drive assembly and an upward reset assembly. The anti-collision body is slidably installed on one side of the guide vehicle body, one end of the lifting drive assembly is transmission-connected with the gear transmission assembly, and the other end is fixed to one side of the anti-collision body. When the lifting plate moves up, the lifting drive assembly is synchronously driven by the gear transmission assembly to make the anti-collision body move down and contact the ground. The upward reset assembly is connected to one side of the anti-collision body, and is used to drive the anti-collision body that has descended to a preset position to automatically move up and reset.

[0012] As a further optimization scheme of the present invention, the lifting drive assembly includes a reciprocating screw, a lifting slide, a matching slide shaft, a support spring, a connecting spring and a rotating drive component. The bottom end of the reciprocating screw is rotatably connected to the inner side of the guide vehicle body, one end of the lifting slide is slidingly sleeved on the outer side of the reciprocating screw, and the other end of the lifting slide is slidingly connected to one side of the anti-collision body. The support spring is fixedly installed between the lifting slide and the anti-collision body. The matching slide shaft is slidably arranged in the lifting slide, and one end of it is slidably matched with the spiral groove on the reciprocating screw. The connecting spring is sleeved on the outer side of the matching slide shaft, and its two ends are respectively fixed to the matching slide shaft and the lifting slide.

[0013] As a further optimization scheme of the present invention, the rotating drive member includes two transmission gears, one of which is fixedly mounted on the lower end of the second bevel gear shaft, and the other is fixedly mounted on the lower end of the reciprocating screw, and the two transmission gears are meshed with each other.

[0014] As a further optimization scheme of the present invention, the upward reset assembly includes an induction trigger component and a plurality of sliding limit components. The induction trigger component is arranged at positions corresponding to the lifting slide and the mating slide. After the lifting slide descends to the preset position, the lifting slide position is sensed by the induction trigger component, and the mating slide is driven to slide and separate from the spiral groove on the reciprocating screw. The plurality of sliding limit components are evenly distributed on one side of the anti-collision body, which are used to slide and limit the movable anti-collision body and provide elastic potential energy when the anti-collision body descends.

[0015] As a further optimization scheme of the present invention, the induction trigger component includes an electromagnet and an infrared sensor. The electromagnet is installed in the lifting slide and aligned with the end of the mating slide shaft. The electromagnet is electrically connected to the power supply and control unit inside the guide vehicle body. The infrared sensor is installed on the inner side of the guide vehicle body, which is located below the lifting slide. The infrared sensor is signal-connected to the control unit inside the guide vehicle body.

[0016] As a further optimization scheme of the present invention, the sliding limiter includes a sliding rod, a pressure spring and a connecting slider. The bottom end of the sliding rod is used to guide the inner side of the vehicle body for fixing. One end of the connecting slider is slidably sleeved on the outer side of the sliding rod, and the other end is fixed to one side of the anti-collision body. The pressure spring is sleeved on the outer side of the sliding rod, and its two ends are respectively fixed to the connecting slider and the sliding rod.

[0017] As a further optimization scheme of the present invention, the moving mechanism includes two driving members, two main rolling wheels and four auxiliary rollers. The two main rolling wheels are symmetrically installed in the middle of both sides of the guide vehicle body. The two driving members are correspondingly connected to the two main rolling wheels by transmission, and the four auxiliary rollers are evenly installed at the bottom of the guide vehicle body.

[0018] The beneficial effects of the present invention are:

[0019] The lifting mechanism provided in the present invention mainly adopts the transmission mode of motor and transmission screw to realize the lifting action of the lifting mechanism. Compared with the hydraulic drive mode of transmission, the precision and control thereof are improved by using a servo motor in combination with a gear transmission assembly, which can realize the function of accurately controlling the height of the lifting plate, and the positioning accuracy can reach the millimeter level, which can well adapt to high-precision operation scenarios such as accurate handling and placement of materials in electronic component assembly lines;

[0020] In addition, the motor drive system is less affected by changes in ambient temperature, and there is no problem of hydraulic oil leakage. Its performance is relatively stable and reliable, and can better meet the requirements of modern automated logistics and industrial handling for high performance, high reliability, energy saving and environmental protection of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an automatic guided transport vehicle for industrial production and distribution provided by the present invention;

[0022] Figure 2 It is a schematic diagram of the structure inside an automatic guided transport vehicle for industrial production and distribution provided by the present invention;

[0023] Figure 3 It is a structural schematic diagram of a jacking mechanism and a guide vehicle body in an automatic guided transport vehicle for industrial production and distribution provided by the present invention;

[0024] Figure 4 It is a structural schematic diagram of a gear transmission assembly in an automatic guided transport vehicle for industrial production and distribution provided by the present invention;

[0025] Figure 5 It is a structural schematic diagram of a jacking plate in an automatic guided transport vehicle for industrial production and distribution provided by the present invention;

[0026] Figure 6It is a structural schematic diagram of a sliding limiter assembly in an automatic guided transport vehicle for industrial production and distribution provided by the present invention;

[0027] Figure 7 It is a structural schematic diagram of the partial position of the guide vehicle body in an automatic guided transport vehicle for industrial production and distribution provided by the present invention;

[0028] Figure 8 It is a structural schematic diagram of a gear transmission assembly and an anti-collision mechanism in an automatic guided transport vehicle for industrial production and distribution provided by the present invention;

[0029] Fig. 9 It is a structural schematic diagram of a lifting drive component and an upward movement reset component in an automatic guided transport vehicle for industrial production and distribution provided by the present invention;

[0030] Fig.10 It is a cross-sectional view of a local position of a lifting slide in an automatic guided transport vehicle for industrial production and distribution provided by the present invention;

[0031] Fig.11 The present invention is a schematic diagram of the structure of a moving mechanism in an automatic guided transport vehicle for industrial production and distribution.

[0032] In the figure:

[0033] 1. Guide the vehicle body;

[0034] 2. Lifting mechanism; 21. Lifting plate; 22. Driving source; 23. Gear transmission assembly; 231. First bevel gear; 232. Second bevel gear; 233. Transmission shaft; 234. Transmission belt; 235. Third bevel gear; 236. Fourth bevel gear; 237. Fifth bevel gear; 238. Pulley; 24. Lifting sleeve; 25. Transmission screw; 26. Sliding limit assembly; 261. Support slide; 262. Limit rod; 263. Buffer contact body; 264. Buffer spring;

[0035] 3. Anti-collision mechanism; 31. Anti-collision body; 32. Lifting drive assembly; 321. Reciprocating screw; 322. Lifting slide seat; 323. Matching slide shaft; 324. Support spring; 325. Connecting spring; 326. Transmission gear; 33. Upward reset assembly; 331. Electromagnet; 332. Infrared sensor; 333. Sliding rod; 334. Pressure spring; 335. Connecting slider;

[0036] 4. Moving mechanism; 41. Main rolling wheel; 42. Auxiliary rolling wheel; 43. Driving motor; 44. Worm; 45. Worm wheel. DETAILED DESCRIPTION

[0037] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0038] Please refer to Figure 1 and Figure 2 , an automatic guided transport vehicle for industrial production and distribution, comprising: a guide vehicle body 1, a lifting mechanism 2, an anti-collision mechanism 3 and a moving mechanism 4. The lifting mechanism 2 is installed on the guide vehicle body 1, and the shelf to be transported can be lifted by the lifting mechanism 2. The lifting mechanism 2 includes a lifting plate 21, a driving source 22, a gear transmission assembly 23, four lifting sleeves 24 and four transmission screws 25. The lifting plate 21 is arranged on the top of the guide vehicle body 1, and the lifting plate 21 is a rectangular plate. The four lifting sleeves 24 are evenly fixedly installed at the four corner positions at the bottom of the lifting plate 21. The four lifting sleeves 24 are correspondingly threadedly sleeved on the outside of the four transmission screws 25, and the bottom ends of the four transmission screws 25 are rotatably connected to the inner side of the guide vehicle body 1. The driving source 22 can be a servo motor, which is fixedly installed on the inner side of the guide vehicle body 1. The driving end of the driving source 22 is matched with the gear transmission assembly 23 for transmission connection, and the gear transmission assembly 23 is matched with the four transmission screws 25 for transmission connection.

[0039] For details, please refer to Figure 3 and Figure 4 The gear transmission assembly 23 includes a first bevel gear 231, a second bevel gear 232, a transmission shaft 233, a transmission belt 234, two third bevel gears 235, two fourth bevel gears 236, two fifth bevel gears 237 and four pulleys 238. The first bevel gear 231 is fixed to the driving end of the servo motor, the second bevel gear 232 is rotatably mounted on the inner side of the guide vehicle body 1, the bottom of the first bevel gear 231 is meshed with one side of the second bevel gear 232, the transmission shaft 233 is rotatably mounted on the inner side of the guide vehicle body 1, and the two third bevel gears 235 are symmetrical. It is fixedly sleeved on the outer side of the transmission shaft 233, and the bottoms of the two third bevel gears 235 are respectively meshed with the two sides of the second bevel gear 232, the two fourth bevel gears 236 are symmetrically fixedly installed on the two ends of the transmission shaft 233, the two fifth bevel gears 237 are correspondingly fixedly sleeved on the outer sides of the two transmission screws 25 close to the servo motor side, and the two fourth bevel gears 236 are correspondingly meshed with the two fifth bevel gears 237, the four pulleys 238 are correspondingly fixedly sleeved on the outer sides of the four transmission screws 25, and the four pulleys 238 are connected for transmission through the transmission belt 234.

[0040] It should be noted that when the above-mentioned lifting mechanism 2 is in use, the automatic guided transport vehicle has moved to the lifting position corresponding to the bottom of the shelf. After that, the servo motor rotates to drive the first bevel gear 231 to rotate, and the second bevel gear 232 rotates synchronously with the first bevel gear 231. The two third bevel gears 235 start to rotate under the driving action of the second bevel gear 232, so that the transmission shaft 233 can rotate. The rotation of the transmission shaft 233 can drive the two fourth bevel gears 236 to rotate together, and the two fifth bevel gears 237 are respectively driven by the corresponding fourth bevel gears 236. The four driving screws 25 are moved, causing the two driving screws 25 to rotate, and under the coordinated transmission action of the transmission belt 234 and the four pulleys 238, the four driving screws 25 can rotate synchronously, respectively driving the corresponding four lifting sleeves 24 to move up, and finally the lifting plate is slowly moved up, and the shelf on the top of it is lifted up. When the shelf moves to a preset height, the servo motor stops rotating, causing the four driving screws 25 to stop rotating at the same time, and the threaded cooperation between the driving screws 25 and the lifting sleeves 24 is used to automatically lock the position of the lifting plate 21, so that it cannot move down, thereby ensuring the stability of the shelf.

[0041] It should be further explained that the lifting mechanism 2 adopted by the above-mentioned automatic guided transport vehicle has the following advantages compared with the traditional hydraulic lifting form: in terms of precision and control, a servo motor is used as the main driving source 22, and the driving and matching transmission belt 234, bevel gears and other components can be used to achieve precise control of the lifting plate 21 through a precise electronic control system, so as to achieve the function of accurately controlling the height of the lifting plate 21, and the positioning accuracy can reach millimeter level, which can be well adapted to high-precision operation scenarios such as precise handling and placement of materials in electronic component assembly lines; in addition, the speed of the servo motor can be flexibly adjusted through equipment such as frequency converters, thereby realizing a wide range of adjustment of the lifting speed of the lifting plate 21, and can quickly or slowly lift and lower the lifting plate 21 according to different operation requirements and cargo characteristics. In terms of maintenance and reliability, since the transmission components of the lifting mechanism 2 are all highly standardized mechanical parts, they are easy to obtain on the market and the maintenance technology is mature. Ordinary maintenance personnel can perform maintenance and replacement after simple training. However, the hydraulic components such as seals, hydraulic pumps, and control valves involved in the hydraulic cylinder are of various types and specifications. It is relatively difficult to purchase and replace them, and professional hydraulic knowledge and skills are required for maintenance, and the maintenance cost is high. In addition, the motor drive system does not have the problem of hydraulic oil leakage, which avoids environmental pollution and equipment pollution caused by hydraulic oil leakage, as well as possible safety hazards, such as slipping due to slippery ground. Due to the aging and wear of the seals, the hydraulic cylinder is prone to hydraulic oil leakage, which not only affects the normal operation of the equipment, but also requires regular inspection and replacement of the seals, increasing the maintenance workload and cost. It has higher reliability and is less affected by the environment. Since the performance of the servo motor is relatively stable, it is less affected by changes in ambient temperature and can work normally within a wide temperature range. The viscosity of hydraulic oil will change significantly with temperature. When the temperature is low, the viscosity increases, which may cause the hydraulic system to start up and move slowly. When the temperature is high, the viscosity decreases, which may cause problems such as increased leakage and unstable system pressure, affecting the normal operation and reliability of the hydraulic cylinder. The transmission components of the motor drive system, such as the transmission belt 234 and gears, have relatively stable and predictable performance and life under normal maintenance. The hydraulic cylinder system may be mixed with impurities, air, etc., which may easily cause valve core jamming, hydraulic cylinder creeping and other faults. These faults have a certain randomness and are difficult to predict and prevent in advance, affecting the stability and reliability of the system. In summary, the jacking mechanism 2 provided by the present invention has obvious advantages over the hydraulic cylinder drive mode in terms of precision control, maintenance convenience, reliability, spatial layout and energy efficiency, and can better meet the requirements of modern automated logistics and industrial handling for high performance, high reliability and energy saving and environmental protection of equipment.

[0042] Please refer to Figure 3 , Figure 5 and Figure 6In order to further improve the stability of the lifting plate 21 during the lifting process and reduce the influence of the load-bearing force on the entire automatic guided transport vehicle, the present invention further optimizes the above scheme, specifically: the four corner positions at the bottom of the lifting plate 21 are each provided with a sliding limit assembly 26, the sliding limit assembly 26 includes a support slide 261, a limit rod 262, a buffer contact body 263 and a buffer spring 264, the top of the support slide 261 is fixed to the bottom of the lifting plate 21, and the support slide 261 is The bottom is in contact with the inner side of the guide vehicle body 1, the bottom of the limit rod 262 is fixed to the inner side of the guide vehicle body 1, one side of the support slide 261 is slidably connected to the outer side of the limit rod 262, the buffer contact body 263 is slidably sleeved on the top of the limit rod 262, and the buffer spring 264 is sleeved on the upper end of the outer side of the limit rod 262, and its two ends are respectively fixed to the bottom of the buffer contact body 263 and the outer side of the limit rod 262, and the top of the buffer contact body 263 is in contact with the upper end of the support slide 261.

[0043] The support slide 261 is moved upward along with the lifting plate 21, and one side of the support slide 261 slides along the outer side of the limit rod 262. The four support slides 261 cooperate with the four limit rods 262 to slide and stabilize the lifting plate 21, so that the lifting plate 21 can move up and down smoothly. When the lifting plate 21 drives the shelf to move downward, after the upper end of the support slide 261 moves downward and contacts the top of the buffer contact body 263, the bottom of the support slide 261 has not yet contacted the inner side of the guide vehicle body 1. Then, as the support slide 261 moves downward, the buffer contact body 263 can be driven downward and the buffer spring 264 can be compressed synchronously. Through the cooperation between the buffer contact body 263 and the buffer spring 264, the downward-moving lifting plate 21 is buffered, which can avoid the support slide 261 from directly and rigidly contacting the guide vehicle body 1, thereby protecting the guide vehicle body 1 to a certain extent.

[0044] Please refer to Figure 7 In order to further increase the safety and stability of the above-mentioned automatic guided transport vehicle when carrying the shelf, and in conjunction with the design of the above-mentioned lifting mechanism 2, the present invention continues to optimize the above-mentioned scheme, specifically: the anti-collision mechanism 3 is arranged on one side of the guide vehicle body 1, the anti-collision mechanism 3 includes an anti-collision body 31, a lifting drive assembly 32 and an upward reset assembly 33, the anti-collision body 31 is slidably installed on one side of the guide vehicle body 1, and a rubber anti-collision layer is arranged on the peripheral side of the bottom of the anti-collision body 31. One end of the lifting drive assembly 32 is connected to the gear transmission assembly 23 for transmission, and the other end is fixed to one side of the anti-collision body 31. When the lifting plate 21 moves up, the lifting drive assembly 32 is synchronously driven by the gear transmission assembly 23, so that the anti-collision body 31 moves down and contacts the ground, and the upward reset assembly 33 is connected to one side of the anti-collision body 31, which is used to drive the anti-collision body 31 that has dropped to a preset position to automatically move up and reset.

[0045] For details, please refer to Figures 8 to 9 The lifting drive assembly 32 includes a reciprocating screw 321, a lifting slide 322, a matching slide shaft 323, a support spring 324, a connecting spring 325 and a rotating driving member. The bottom end of the reciprocating screw 321 is rotatably connected to the inner side of the guide vehicle body 1. The reciprocating screw 321 is provided with a thread groove with opposite spiral directions. One end of the lifting slide 322 is slidably sleeved on the outer side of the reciprocating screw 321, and the other end of the lifting slide 322 is slidably connected to one side of the anti-collision body 31. The support spring 324 is fixedly installed between the lifting slide 322 and the anti-collision body 31. The matching slide shaft 323 is slidably arranged in the lifting slide 322, and one end of it is slidably matched with the spiral groove on the reciprocating screw 321. The connecting spring 325 is sleeved on the outer side of the matching slide shaft 323, and its two ends are respectively fixed to the matching slide shaft 323 and the lifting slide 322. The rotary drive member includes two transmission gears 326 , one of which is fixedly sleeved on the lower end of the rotating shaft of the second bevel gear 232 , and the other is fixedly sleeved on the lower end of the reciprocating screw 321 , and the two transmission gears 326 are meshed with each other.

[0046] Please refer to Figures 8 to 10 The upward reset assembly 33 includes an inductive trigger and two sliding limiters. The inductive trigger is set at the position corresponding to the lifting slide 322 and the matching slide. After the lifting slide 322 descends to the preset position, the position of the lifting slide 322 is sensed by the inductive trigger, and the matching slide is driven to slide and separate from the spiral groove on the reciprocating screw 321. The two sliding limiters are evenly distributed on one side of the anti-collision body 31, which is used to slide and limit the movable anti-collision body 31 and provide elastic potential energy when the anti-collision body 31 descends. The inductive trigger includes an electromagnet 331 and an infrared sensor 332. The electromagnet 331 is installed in the lifting slide 322 and aligned with the end of the matching slide shaft 323. The electromagnet 331 is electrically connected to the power supply and control unit inside the guide vehicle body 1. The infrared sensor 332 is installed on the inner side of the guide vehicle body 1, which is located below the lifting slide 322. The infrared sensor 332 is connected to the control unit signal inside the guide vehicle body 1. The sliding limiter includes a sliding rod 333, a pressure spring 334 and a connecting slider 335. The bottom end of the sliding rod 333 is used to guide the inner side of the vehicle body 1 for fixing. One end of the connecting slider 335 is slidably sleeved on the outer side of the sliding rod 333, and the other end is fixed to one side of the anti-collision body 31. The pressure spring 334 is sleeved on the outer side of the sliding rod 333, and its two ends are respectively fixed to the connecting slider 335 and the sliding rod 333.

[0047] It should be noted that when the anti-collision mechanism 3 is in use, the servo motor rotates forward to drive the gear transmission assembly 23 to move, which can drive the lifting plate 21 to move upward. At this time, the second bevel gear 232 rotates to make the two transmission gears 326 rotate synchronously, and the reciprocating screw 321 is driven by the transmission gear 326 to start rotating. Since the matching slide shaft 323 slides with the first spiral groove on the reciprocating screw 321, and the spiral groove is adapted to the forward rotation direction of the servo motor, that is, when the servo motor rotates forward, the matching slide shaft 323 can be driven to slide downward through the rotation of the spiral groove, and the lifting slide 322 is limited by the sliding of the guide vehicle body 1, so that the reciprocating screw 321 can drive the lifting slide 322 to move gradually downward, and the anti-collision mechanism 3 The body 31 synchronously follows the lifting slide 322 to move downward. When the bottom of the anti-collision body 31 descends and contacts the ground, the lifting plate 21 has not yet contacted the shelf. The contact between the anti-collision body 31 and the ground can further increase the supporting effect of the bottom of the guide vehicle body 1. When the lifting plate 21 continues to move upward to contact the shelf and lift the shelf, the stability of the guide vehicle body 1 can be improved to avoid shaking. During the process of the lifting plate 21 continuing to move upward, the lifting slide 322 continues to extend the surface of the reciprocating screw 321 to slide downward and begin to squeeze the support spring 324. During the downward movement of the anti-collision body 31, the two connecting sliders 335 connected thereto begin to slide downward along the corresponding slide rods 333 and generate a squeezing force on the pressure spring 334 to make it contract. After the shelf is lifted to a preset height, the servo motor stops rotating, the lifting plate 21 stops moving up, the reciprocating screw 321 stops rotating, and the lifting slide 322 just reaches the preset position. The position of the lifting slide 322 is detected by the infrared sensor 332, and a signal is sent to the control unit. After receiving the signal, the control unit starts to control the electromagnet 331 to be energized. After the electromagnet 331 is energized, a magnetic force is generated, which produces a magnetic attraction on the matching slide shaft 323, causing the matching slide shaft 323 to slide and shrink into the lifting slide 322, and the connecting spring 325 is synchronously stretched by the matching slide shaft 323. When the end of the matching slide shaft 323 contacts the electromagnet 331, the other end of the matching slide shaft 323 is separated from the spiral groove on the reciprocating screw 321. At this time, the lifting The lowering slide 322 is no longer subject to the card-locking effect of the matching sliding shaft 323, and under the joint elastic force of the supporting spring 324 and the pressure spring 334, the surface of the reciprocating screw 321 can be extended to move up and reset, and the anti-collision body 31 moves up and resets along with the lifting slide 322, so that the bottom of the anti-collision body 31 is separated from the ground. After that, the infrared sensor detects the position change of the lifting slide 322 and sends a signal to the control unit again, so that the control unit can control the electromagnet 331 to cut off the power, and the matching sliding shaft 323 loses the magnetic adsorption effect of the electromagnet 331, and slides again under the elastic force of the connecting spring 325 to slide with the spiral groove on the reciprocating screw 321. At this time, the reset anti-collision body 31 will not hinder the normal movement of the automatic guided transport vehicle.After the shelf is moved to the designated position, the lifting plate 21 needs to be controlled to move downward to place the shelf at the designated position. By controlling the servo motor to rotate in the opposite direction, the matching slide shaft 323 starts to slide along the second spiral groove on the reciprocating screw 321. The spiral groove is adapted to the reverse rotation of the servo motor, so it can drive the matching slide shaft 323 to continue to move downward, so that the lifting slide 322 can move downward, and the anti-collision body 31 follows the lifting slide 322 to move downward. When the bottom of the anti-collision body 31 moves downward and contacts the ground, the bottom of the shelf has not yet contacted the ground. At this time, the anti-collision body 31 is used as an auxiliary support structure to provide auxiliary support for the guide transport vehicle during the unloading process until the shelf contacts the ground and the lifting plate 21 is separated from the shelf, and the anti-collision body 31 is automatically reset synchronously.

[0048] As can be seen from the above, the anti-collision mechanism 3 realizes the coordinated activity of the lifting plate 21 and the anti-collision body 31 by being used in conjunction with the jacking mechanism 2. When the lifting plate 21 moves up to lift the shelf and unloads the shelf, the anti-collision body 31 moves down synchronously with the ground support and is used as an auxiliary support structure. It can avoid slight shaking when the guided transport vehicle transports shelves with larger mass, so as to improve the stability and safety of the guided transport vehicle during loading and unloading. As for the anti-collision mechanism 3, it mainly plays an anti-collision role during the movement of the guided transport vehicle, and is used as an auxiliary support structure during the loading and unloading of the guided transport vehicle. By cooperating with the jacking mechanism 2 for transmission, there is no need to separately set a driving source 22 to drive the anti-collision body 31 to rise and fall, which can reduce the power consumption and use cost of the guided transport vehicle.

[0049] Please refer to Figure 3 and Fig.11 The mobile mechanism 4 includes two driving members, two main rolling wheels 41 and four auxiliary rollers 42. The two main rolling wheels 41 are symmetrically installed in the middle of both sides of the guide vehicle body 1. The two driving members are correspondingly connected to the two main rolling wheels 41. The four auxiliary rollers 42 are evenly installed at the bottom of the guide vehicle body 1. The driving member can be composed of a driving motor 43, a worm 44 and a worm wheel 45. The driving motor 43 is fixedly installed on the inner side of the guide vehicle body 1, one end of the worm 44 is fixed to the driving end of the driving motor 43, and the worm wheel 45 is fixed to one side of the main rolling wheel 41. One end of the worm 44 is meshed with the worm wheel 45. The worm 44 is driven to rotate by the driving motor 43, so that the worm wheel 45 can drive the main rolling wheel 41 to rotate, and the two main rolling wheels 41 are matched with a driving motor 43 separately. The speed of the driving motor 43 can be controlled to achieve different movement requirements.

[0050] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. An automatic guided transport vehicle for industrial production and distribution, characterized in that: include: A guide vehicle body (1), a lifting mechanism (2), an anti-collision mechanism (3) and a moving mechanism (4); The lifting mechanism (2) is installed on the guide vehicle body (1), and the lifting mechanism (2) comprises a lifting plate (21), a driving source (22), a gear transmission assembly (23), four lifting sleeves (24) and four transmission screws (25). The lifting plate (21) is arranged on the top of the guide vehicle body (1), and the four lifting sleeves (24) are evenly fixedly installed on the bottom of the lifting plate (21). The four lifting sleeves (24) are correspondingly threadedly sleeved on the outer sides of a plurality of transmission screws (25), and the bottom ends of the four transmission screws (25) are rotatably connected to the inner side of the guide vehicle body (1). The driving end of the driving source (22) is matched with the gear transmission assembly (23) for transmission connection, and the gear transmission assembly (23) is matched with the four transmission screws (25) for transmission connection; The gear transmission assembly (23) comprises a first bevel gear (231), a second bevel gear (232), a transmission shaft (233), a transmission belt (234), two third bevel gears (235), two fourth bevel gears (236), two fifth bevel gears (237) and four pulleys (238); the first bevel gear (231) is fixed to the driving end of the servo motor; the second bevel gear (232) is rotatably mounted on the inner side of the guide vehicle body (1); the bottom of the first bevel gear (231) is meshed with one side of the second bevel gear (232); the transmission shaft (233) is rotatably mounted on the inner side of the guide vehicle body (1); the two third bevel gears (235) are meshed with the second bevel gear (232); The two third bevel gears (235) are symmetrically fixedly mounted on the outer side of the transmission shaft (233), and the bottoms of the two third bevel gears (235) are respectively meshed with the two sides of the second bevel gear (232), the two fourth bevel gears (236) are symmetrically fixedly mounted on the two ends of the transmission shaft (233), the two fifth bevel gears (237) are correspondingly fixedly mounted on the outer sides of the two transmission screws (25) close to the servo motor side, and the two fourth bevel gears (236) are correspondingly meshed with the two fifth bevel gears (237), the four pulleys (238) are correspondingly fixedly mounted on the outer sides of the four transmission screws (25), and the four pulleys (238) are connected for transmission through a transmission belt (234).

2. An automatic guided transport vehicle for industrial production and distribution according to claim 1, characterized in that: The lifting plate (21) is a rectangular plate, the four lifting sleeves (24) are correspondingly distributed at the four corner positions of the bottom of the lifting plate (21), and the driving source (22) is a servo motor, which is fixedly installed on the inner side of the guide vehicle body (1).

3. An automatic guided transport vehicle for industrial production and distribution according to claim 2, characterized in that: The four corner positions at the bottom of the lifting plate (21) are all provided with sliding limit assemblies (26), and the sliding limit assemblies (26) include a supporting slide (261), a limit rod (262), a buffer contact body (263) and a buffer spring (264). The top of the supporting slide (261) is fixed to the bottom of the lifting plate (21), the bottom of the supporting slide (261) is in contact with the inner side of the guide vehicle body (1), and the bottom of the limit rod (262) is in contact with the guide vehicle body (1). The inner side of the body (1) is fixed, one side of the support slide (261) is slidably connected to the outer side of the limit rod (262), the buffer contact body (263) is slidably sleeved on the top end of the limit rod (262), the buffer spring (264) is sleeved on the upper end of the outer side of the limit rod (262), and its two ends are respectively fixed to the bottom of the buffer contact body (263) and the outer side of the limit rod (262), and the top of the buffer contact body (263) is in contact with the upper end of the support slide (261).

4. The automatic guided transport vehicle for industrial production and distribution according to claim 3, characterized in that: The anti-collision mechanism (3) is arranged on one side of the guide vehicle body (1), and comprises an anti-collision body (31), a lifting drive assembly (32) and an upward movement reset assembly (33). The anti-collision body (31) is slidably mounted on one side of the guide vehicle body (1). One end of the lifting drive assembly (32) is matched with the gear transmission assembly (23) for transmission connection, and the other end is fixed to one side of the anti-collision body (31). When the lifting plate (21) moves upward, the lifting drive assembly (32) is synchronously driven by the gear transmission assembly (23) so that the anti-collision body (31) moves downward and contacts the ground. The upward movement reset assembly (33) is connected to one side of the anti-collision body (31) and is used to drive the anti-collision body (31) that has been lowered to a preset position to automatically move upward and reset.

5. The automatic guided transport vehicle for industrial production and distribution according to claim 4, characterized in that: The lifting drive assembly (32) comprises a reciprocating screw (321), a lifting slide (322), a matching slide shaft (323), a support spring (324), a connecting spring (325) and a rotating driving member. The bottom end of the reciprocating screw (321) is rotatably connected to the inner side of the guide vehicle body (1). One end of the lifting slide (322) is slidably sleeved on the outer side of the reciprocating screw (321). The other end of the lifting slide (322) is slidably connected to one side of the anti-collision body (31). The support spring (324) is fixedly installed between the lifting slide (322) and the anti-collision body (31). The matching slide shaft (323) is slidably arranged in the lifting slide (322). One end of the matching slide shaft (323) is slidably matched with the spiral groove on the reciprocating screw (321). The connecting spring (325) is sleeved on the outer side of the matching slide shaft (323). The two ends of the connecting spring are respectively fixed to the matching slide shaft (323) and the lifting slide (322).

6. An automatic guided transport vehicle for industrial production and distribution according to claim 5, characterized in that: The rotary drive member comprises two transmission gears (326), one of which is fixedly sleeved on the lower end of the rotating shaft of the second bevel gear (232), and the other transmission gear (326) is fixedly sleeved on the lower end of the reciprocating screw (321), and the two transmission gears (326) are meshed with each other.

7. An automatic guided transport vehicle for industrial production and distribution according to claim 6, characterized in that: The upward reset component (33) includes an inductive trigger component and a plurality of sliding limit components. The inductive trigger component is arranged at positions corresponding to the lifting slide (322) and the mating slide. After the lifting slide (322) descends to a preset position, the inductive trigger component senses the position of the lifting slide (322) and drives the mating slide to slide and separate from the spiral groove on the reciprocating screw (321). The plurality of sliding limit components are evenly distributed on one side of the anti-collision body (31), and are used to slide and limit the movable anti-collision body (31) and provide elastic potential energy when the anti-collision body (31) descends.

8. The automatic guided transport vehicle for industrial production and distribution according to claim 7, characterized in that: The induction trigger component comprises an electromagnet (331) and an infrared sensor (332); the electromagnet (331) is installed in the lifting slide (322) and is aligned with the end of the matching slide shaft (323); the electromagnet (331) is electrically connected to the power supply and the control unit inside the guide vehicle body (1); the infrared sensor (332) is installed on the inner side of the guide vehicle body (1) and is located below the lifting slide (322); the infrared sensor (332) is signal-connected to the control unit inside the guide vehicle body (1).

9. An automatic guided transport vehicle for industrial production and distribution according to claim 8, characterized in that: The sliding limiter comprises a sliding rod (333), a pressure spring (334) and a connecting slider (335); the bottom end of the sliding rod (333) is used to guide the inner side of the vehicle body (1) for fixing; one end of the connecting slider (335) is slidably sleeved with the outer side of the sliding rod (333), and the other end is fixed to one side of the anti-collision body (31); the pressure spring (334) is sleeved on the outer side of the sliding rod (333), and the two ends of the pressure spring are respectively fixed to the connecting slider (335) and the sliding rod (333).

10. The automatic guided transport vehicle for industrial production and distribution according to claim 1, characterized in that: The moving mechanism (4) comprises two driving members, two main rolling wheels (41) and four auxiliary rolling wheels (42); the two main rolling wheels (41) are symmetrically mounted in the middle of two sides of the guide vehicle body (1); the two driving members are correspondingly connected to the two main rolling wheels (41); and the four auxiliary rolling wheels (42) are evenly mounted on the bottom of the guide vehicle body (1).

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