An unmanned transport vehicle with automatic adjustment of obstacle avoidance range slide

Abstract

The present invention discloses an automatic adjustment obstacle avoidance range slide for an unmanned transport vehicle, comprising a guide rail base, a motor mounting plate provided at the top center of the guide rail base, a servo motor provided on the motor mounting plate, and a driving wheel provided on the servo motor; two sliding plates are symmetrically provided on the left and right sides of the motor mounting plate on the back of the guide rail base, and the left and right sliding plates can synchronously move toward or in opposite directions on the guide rail base through the servo motor, a vertical downward sensing joint is fixedly provided on the outer end of the sliding plate, an obstacle avoidance sensor is fixedly provided at the bottom of the sensing joint, and a distance measuring sensor is fixedly provided on the outer side. This automatic adjustment obstacle avoidance range slide for an unmanned transport vehicle has a simple structure and is suitable for position detection of the outer edges of goods and materials of different widths and lengths. It can effectively prevent goods and materials from touching each other during transportation, ensure the safety of goods and materials during transportation, save time and effort, and improve transportation efficiency.

Description

Technical Field

[0001] The present invention relates to the field of unmanned guided vehicles, and in particular to an unmanned guided vehicle with an automatic adjustment slide for avoiding obstacles. Background Art

[0002] AGVs, also known as automated guided vehicles (AGVs), are equipped with an automatic guidance system that allows them to autonomously travel along a predetermined route without the need for human piloting, transporting goods or materials from their starting point to their destination. The AGV's route can be flexibly adjusted based on changes in warehouse storage requirements, production processes, and other factors. The cost of changing the route is significantly lower than with traditional conveyor belts and rigid conveyor lines. Existing AGVs are typically equipped with loading and unloading mechanisms that automatically interface with other logistics equipment, automating the entire loading, unloading, and handling process.

[0003] Existing unmanned guided vehicles are equipped with obstacle avoidance radars on their tops, which can help them avoid obstacles through radar sensing. However, since the goods and materials being transported vary in size, some larger goods and materials, once exceeding the size of the transport vehicle, can easily collide with obstacles during transportation, affecting transportation and causing unnecessary losses. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an unmanned transport vehicle that can sense the side position of transported goods and materials in real time and automatically adjust the obstacle avoidance range slide to prevent collision with obstacles during transportation.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: an unmanned guided vehicle automatically adjusts the obstacle avoidance range slide, comprising a horizontally arranged guide rail base, a motor mounting plate fixedly arranged at the top center of the guide rail base, a servo motor fixedly arranged on the motor mounting plate, and a driving wheel provided on the servo motor; two left-right symmetrical guide wheels fixedly arranged near the left and right ends of the back of the guide rail base, and the two guide wheels and the driving wheel are connected by a belt transmission; the belt includes an upper transmission part and a lower transmission part, a guide rail fixedly connected to the guide rail base is horizontally arranged at a position between the upper and lower transmission parts on the back of the guide rail base, and a left slider and a right slider that slide with the guide rail are provided on the guide rail, the top of the left slider is fixedly connected to the upper transmission part, and the bottom of the right slider is fixedly connected to the lower transmission part; two sliding plates are symmetrically arranged on the left and right sides of the back of the guide rail base, and the left and right sliding plates are fixedly connected to the left and right sliders respectively, and the outer ends of the sliding plates are fixedly provided with vertically downward sensing joints, the bottom of the sensing joints is fixedly provided with an obstacle avoidance sensor, and the outer sides are fixedly provided with a ranging sensor.

[0006] Preferably, two tensioning pulleys are symmetrically arranged on the left and right sides of the motor mounting plate below the driving pulley, and both tensioning pulleys are pressed against the outside of the belt.

[0007] Preferably, a guide groove communicating left and right is provided on the front of the sliding plate, and the sliding plate is sleeved on the outside of the guide rail base through the guide groove, and there is a clearance fit between the sliding plate and the guide rail base.

[0008] Preferably, a pre-buried groove communicating left and right is provided on the back of the guide rail base, and the guide wheel, belt and guide rail are all arranged in the pre-buried groove.

[0009] Preferably, there are two left sliders and two right sliders respectively, which are symmetrical with respect to the center of the guide rail.

[0010] Preferably, the driving wheel and the guide wheel are connected to the belt via a toothed transmission.

[0011] Compared with the existing technology, the benefits of the present invention are: the slide structure of the unmanned transport vehicle that automatically adjusts the obstacle avoidance range is simple, and is suitable for position detection of the outer edges of goods and materials of different widths and lengths. It can effectively avoid contact between goods and materials during transportation, ensure the safety of goods and materials during transportation, save time and effort, and improve transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the front three-dimensional structure of a slide platform for automatically adjusting the obstacle avoidance range of an unmanned guided vehicle of the present invention;

[0014] Figure 2 This is a schematic diagram of the back three-dimensional structure of a slide platform for automatically adjusting the obstacle avoidance range of an unmanned guided vehicle of the present invention;

[0015] Figure 3 This is a schematic diagram of the internal front structure of a slideway for automatically adjusting the obstacle avoidance range of an unmanned guided vehicle of the present invention;

[0016] Figure 4 This is a schematic diagram of the internal structure of a slideway for automatically adjusting the obstacle avoidance range of an unmanned guided vehicle of the present invention;

[0017] Figure 5 This is a schematic diagram of the back structure of the guide rail base in the slide platform of an unmanned guided vehicle that automatically adjusts the obstacle avoidance range of the present invention.

[0018] In the figure: 1. Guide rail base; 11. Motor mounting plate; 12. Servo motor; 121. Driving pulley; 13. Tensioner pulley; 14. Guide pulley; 15. Guide rail; 151. Left slider; 152. Right slider; 16. Belt; 161. Upper transmission part; 162. Lower transmission part; 2. Sliding plate; 21. Guide groove; 22. Sensor connector; 3. Distance sensor; 4. Obstacle avoidance sensor. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] Figure 1-5 The illustrated embodiment of an unmanned guided vehicle automatically adjusts its obstacle avoidance range slide, comprising a horizontally arranged guide rail base 1, a motor mounting plate 11 being fixedly arranged at the top center of the guide rail base 1, a servo motor 12 being fixedly arranged on the motor mounting plate 11, and a driving wheel 121 being arranged on the servo motor 12; two left-right symmetrical guide wheels 14 are fixedly arranged near the left and right ends on the back of the guide rail base 1, and the two guide wheels 14 and the driving wheel 121 are connected by a belt 16 for transmission; the belt 16 comprises an upper transmission part 161 and a lower transmission part 162, and a belt 16 is fixed to the back of the guide rail base 1 between the upper transmission part 161 and the lower transmission part 162. The connected guide rail 15 is provided with a left slider 151 and a right slider 152 that slide with it left and right. The top of the left slider 151 is fixedly connected to the upper transmission part 161, and the bottom of the right slider 152 is fixedly connected to the lower transmission part 162; the back of the guide rail base 1 is symmetrically provided with two sliding plates 2 on the left and right sides of the motor mounting plate 11, and the left and right sliding plates 2 are respectively fixedly connected to the left slider 151 and the right slider 152, and the outer end of the sliding plate 2 is fixedly provided with a vertically downward sensing joint 22, the bottom of the sensing joint 22 is fixedly provided with an obstacle avoidance sensor 4, and the outer side is fixedly provided with a ranging sensor 3.

[0021] In order to limit the position of the belt 16 and tighten the belt at the same time, two tensioning pulleys 13 are symmetrically arranged on the left and right sides below the driving pulley 121 on the motor mounting plate 11, and both tensioning pulleys 13 are pressed against the outside of the belt 16.

[0022] In order to further limit the stability of the sliding plate 2 relative to the motor mounting plate 11, a guide groove 21 connected to the left and right is provided on the front of the sliding plate 2. The sliding plate 2 is sleeved on the outside of the guide rail base 1 through the guide groove 21, and there is a gap between it and the guide rail base 1.

[0023] In order to improve the strength of the guide rail base 1 and facilitate the concealment of the guide wheel 14, belt 16 and guide rail 15 in the guide rail base 1 to ensure aesthetics, a pre-buried groove connected to the left and right is provided on the back of the guide rail base, and the guide wheel 14, belt 16 and guide rail 15 are all provided in the pre-buried groove.

[0024] In order to ensure the stability of the sliding plate 2 , there are two left sliders 151 and two right sliders 152 , which are symmetrical about the center of the guide rail 15 .

[0025] In order to improve the transmission effect of the belt 16 and prevent the belt 16 from slipping or falling off from the driving wheel 12 and the guide wheel 15, the driving wheel 121 and the guide wheel 14 are connected to the belt 16 through tooth transmission.

[0026] Its specific working principle is as follows: the automatic adjustment of the obstacle avoidance range slide of the unmanned guided vehicle is fixedly installed on the unmanned guided vehicle, and the distance sensor 3, obstacle avoidance sensor 4 and servo motor 12 on the automatic adjustment of the obstacle avoidance range slide of the unmanned guided vehicle are electrically connected to the control system of the unmanned guided vehicle, which can realize signal transmission control. When the unmanned guided vehicle transports goods and materials through the loading and unloading mechanism, the distance sensor 3 is turned on. If the distance sensor 3 senses the goods and objects on the unmanned guided vehicle, the obstacle avoidance sensor 4 will feed back the signal to the control system of the unmanned guided vehicle, and the unmanned guided vehicle will control the servo motor 12 to start through the control system, and the main shaft of the servo motor 12 will rotate clockwise. The clockwise rotation drives the driving wheel 121 to rotate clockwise, and the driving wheel 121 drives the belt 16 to run from right to left. The left slider 151 and the right slider 152 move in opposite directions at both ends, and drive the two symmetrical sliding plates 2 to extend to the left and right sides. When there is no signal reflection between the distance measuring sensor 3 and the goods and materials, the obstacle avoidance sensor 4 feeds back the signal to the control system and controls the servo motor 12 to stop. At this time, the obstacle avoidance sensor 4 and the distance measuring sensor 3 are at the critical position of the goods and materials. During the transportation of goods and materials, the obstacle avoidance sensor 4 can ensure that the outer edge of the goods and materials is away from obstacles to avoid touching the obstacles, thereby improving safety.

[0027] This unmanned transport vehicle automatically adjusts the obstacle avoidance range and has a simple slide structure. It is suitable for position detection of the outer edges of goods and materials of different widths and lengths. It can effectively avoid contact between goods and materials during transportation, ensure the safety of goods and materials during transportation, save time and effort, and improve transportation efficiency.

[0028] It should be emphasized that the above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automatic sliding platform for adjusting the obstacle avoidance range of an unmanned guided vehicle, characterized by: The invention comprises a guide rail base (1) arranged transversely, wherein a motor mounting plate (11) is fixedly arranged at the top center of the guide rail base (1), a servo motor (12) is fixedly arranged on the motor mounting plate (11), and a driving wheel (121) is arranged on the servo motor (12); two left-right symmetrical guide wheels (14) are fixedly arranged at positions near the left and right ends on the back of the guide rail base (1), and the two guide wheels (14) and the driving wheel (121) are connected to each other through a belt (16); the belt (16) comprises an upper transmission part (161) and a lower transmission part (162). The guide rail base (1) is provided with a guide rail (15) fixedly connected to the transmission part (162) at a position between the upper transmission part (161) and the lower transmission part (162) on the back side of the guide rail base (1). The guide rail (15) is provided with a left slider (151) and a right slider (152) that slide with the guide rail (15). The top of the left slider (151) is fixedly connected to the upper transmission part (161), and the bottom of the right slider (152) is fixedly connected to the lower transmission part (162). The back side of the guide rail base (1) is located on the motor mounting plate (11 ) are symmetrically provided with two sliding plates (2) on the left and right sides, and the two sliding plates (2) are fixedly connected to the left slider (151) and the right slider (152) respectively. The outer end of the sliding plate (2) is fixedly provided with a vertical downward sensing joint (22), the bottom of the sensing joint (22) is fixedly provided with an obstacle avoidance sensor (4), and the outer side is fixedly provided with a distance sensor (3); the motor mounting plate (11) is symmetrically provided with two tensioning wheels (13) on the left and right sides below the driving wheel (121). The two tensioning wheels (1 3) are pressed against the outside of the belt (16); the front of the sliding plate (2) is provided with a left-right connected guide groove (21), and the sliding plate (2) is sleeved on the outside of the guide rail base (1) through the guide groove (21), and there is a gap between it and the guide rail base (1); the back of the guide rail base is provided with a left-right connected embedded groove, and the guide wheel (14), the belt (16) and the guide rail (15) are all arranged in the embedded groove; the left slider (151) and the right slider (152) are respectively provided with two, which are symmetrical about the center of the guide rail (15).

2. The automatic obstacle avoidance range slide of an unmanned guided vehicle according to claim 1, characterized in that: The driving wheel (121) and the guide wheel (14) are connected to the belt (16) via toothed transmission.

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