Overload alarm mechanism for AGV (Automatic Guided Vehicle)

Abstract

The overload alarm mechanism comprises an AGV body, a limiting ring is fixedly installed on the outer wall of the AGV body, a motor is fixedly installed on the side face of the AGV body, an output shaft of the motor is fixedly connected with a screw in a sleeved mode, and a transmission ring is installed on the surface of the screw in a threaded mode. According to the utility model, the photoelectric sensor, the transmission ring, the motor and the bearing component are matched with one another, so that the lifting of the protective cross frame cannot be completed when goods are overweight, and the transportation safety of the goods cannot be effectively protected in the transportation process, thereby realizing overload warning, enabling each transportation to be within a bearing range, and ensuring the safety of the goods. The service life of the device is prolonged, safety is improved, goods can be moved through rolling of rollers when carried to the surface of a containing base plate by means of a moving assembly, carrying and unloading are replaced, the working intensity of workers is reduced, automatic lifting of a slope table is achieved through an electric hydraulic telescopic rod, and the overall automation degree of the device is further improved; and the practicability is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of AGV transport vehicles, in particular to an overload alarm mechanism for an AGV transport vehicle. Background Art

[0002] AGV, or automatic guided vehicle, is a transport vehicle equipped with an automatic guidance device such as an electromagnetic or optical device, which can travel along a specified guidance path and has safety protection and various transfer functions.

[0003] However, when existing AGV transporters are transporting goods, workers are often required to place goods on them. In order to improve transportation efficiency, more goods are often placed on them, resulting in overloading. After a long time, their service life will undoubtedly be reduced. However, the AGV transporter cannot issue an overload warning when loading and transporting goods. Therefore, workers may place more goods on them. In addition, when transporting goods, workers are required to move the goods to the designated location. Therefore, the loading and unloading of goods requires workers to expend more effort, reducing the practicability of the device. Utility Model Content

[0004] The purpose of the utility model is to provide an AGV transport vehicle overload alarm mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an overload alarm mechanism for an AGV transport vehicle, comprising an AGV body, a limit ring is fixedly installed on the outer wall of the AGV body, a motor is fixedly installed on the side of the AGV body, a screw is fixedly sleeved on the output shaft of the motor, a transmission ring is threadedly installed on the surface of the screw, a protective cross frame is fixedly installed on the side of the transmission ring, a vertical pole is fixedly installed on the bottom end of the protective cross frame, a photoelectric sensor is fixedly installed on the inner wall of the AGV body at a horizontal position at the top of the screw, a placement pad is fixedly installed on the top surface of the AGV body, a load-bearing component is fixedly installed on the bottom of the placement pad, moving components are fixedly installed on the left and right sides of the placement pad located on the top surface of the AGV body, and the top surface of the placement pad is set to a rough surface structure;

[0006] The load-bearing component comprises an X-shaped plate, and a pressure sensor is fixedly mounted on the top surface of the X-shaped plate.

[0007] Preferably, the number of the pressure sensors is five, and the five pressure sensors are respectively located in the middle and at the top of the four corners of the X-shaped plate.

[0008] Preferably, the bottom ends of the five pressure sensors are electrically connected to controller 1, and the controller 1 and the motor are electrically connected to each other.

[0009] Preferably, a second vertical pole is fixedly installed at the bottom of the right end of the protective horizontal frame, a reinforcing plate is fixedly installed inside the second vertical pole, a chuck is fixedly installed at the bottom end of the first vertical pole, and the first vertical pole is movably sleeved inside the limiting ring.

[0010] Preferably, the moving component includes an electric hydraulic telescopic rod, a ramp is fixedly installed on the top of the electric hydraulic telescopic rod, rollers are rotatably installed on the top surface of the ramp, the electric hydraulic telescopic rod is fixedly installed on the top surface of the rear side of the AGV body, and is electrically connected to controller 2.

[0011] Preferably, the electric hydraulic telescopic rod is electrically connected to each other via controller 2 and the photoelectric sensor.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The photoelectric sensor, transmission ring, motor and load-bearing components cooperate with each other to prevent the lifting of the protective frame when the goods are overweight, that is, the transportation safety of the goods cannot be effectively protected during transportation, so as to achieve overload warning, so that the AGV transport vehicle is within the bearing range in each transportation, extending its service life and improving safety;

[0014] 2. The use of mobile components can enable the goods to be moved by rolling rollers when they are moved to the surface where the pad is placed, instead of loading and unloading, reducing the workload of the staff, and when the electric hydraulic telescopic rod is used to realize the automatic lifting of the ramp, the overall automation level of the device is further improved, thereby further improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the AGV body of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the mobile component of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the load-bearing component of the utility model.

[0019] In the figure: 1. AGV body; 2. Limiting ring; 3. Motor; 4. Screw; 5. Transmission ring; 6. Protective cross frame; 7. Pole 1; 8. Pole 2; 9. Reinforcement plate; 10. Placement pad; 11. Moving assembly; 12. Load-bearing assembly; 13. Photoelectric sensor; 601. Chuck; 111. Electric hydraulic telescopic rod; 112. Ramp; 113. Roller; 121. X-shaped plate; 122. Pressure sensor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] like Figures 1 to 4 As shown, an AGV transport vehicle overload alarm mechanism in the embodiment of the first aspect of the utility model comprises an AGV body 1, a limit ring 2 is fixedly installed on the outer wall of the AGV body 1, a motor 3 is fixedly installed on the side of the AGV body 1, a screw 4 is fixedly sleeved on the output shaft of the motor 3, a transmission ring 5 is threadedly installed on the surface of the screw 4, a protective cross frame 6 is fixedly installed on the side of the transmission ring 5, a vertical pole 7 is fixedly installed on the bottom end of the protective cross frame 6, a photoelectric sensor 13 is fixedly installed on the inner wall of the AGV body 1 at a horizontal position at the top of the screw 4, a placement pad 10 is fixedly installed on the top surface of the AGV body 1, a load-bearing component 12 is fixedly installed on the bottom of the placement pad 10, and a moving component 11 is fixedly installed on the left and right sides of the placement pad 10 located on the top surface of the AGV body 1, and the top surface of the placement pad 10 is set to a rough surface structure;

[0023] The load-bearing component 12 includes an X-shaped plate 121, a pressure sensor 122 is fixedly installed on the top surface of the X-shaped plate 121, a vertical pole 2 8 is fixedly installed on the bottom of the right end of the protective cross frame 6, a reinforcing plate 9 is fixedly installed inside the vertical pole 2 8, a chuck 601 is fixedly installed on the bottom end of the vertical pole 1 7, and the vertical pole 1 7 is movably sleeved inside the limiting ring 2, the moving component 11 includes an electric hydraulic telescopic rod 111, a ramp 112 is fixedly installed on the top of the electric hydraulic telescopic rod 111, a roller 113 is rotatably installed on the top surface of the ramp 112, the electric hydraulic telescopic rod 111 is fixedly installed on the top surface of the rear side of the AGV body 1, and is electrically connected to the controller 2, and the electric hydraulic telescopic rod 111 is electrically connected to each other through the controller 2 and the photoelectric sensor 13.

[0024] In the above embodiment, it should be noted that the photoelectric sensor 13 can specifically adjust the recognition distance, so there is no need to worry about recognizing the surface of the screw 4 and causing misjudgment.

[0025] The technical effect achieved by the above embodiment is: the slope of the ramp platform 112 can make the goods better pushed to the top surface of the placement pad 10 to complete the placement, saving the physical strength of the staff. In addition, the transmission ring 5 is used for displacement to cooperate with the photoelectric sensor 13 for signal recognition, thereby controlling the overall position of the moving component 11 and improving the degree of automation of the device. Finally, the rough surface design of the placement pad 10 can effectively increase the contact area between the goods and it, increase friction, and prevent slipping.

[0026] Example 2

[0027] like Figure 4 As shown, an AGV transporter overload alarm mechanism includes all the contents of Example 1. In addition, the number of the pressure sensors 122 is five, and the five pressure sensors 122 are respectively located in the middle and the top of the four corners of the X-shaped plate 121, and the bottom ends of the five pressure sensors 122 are electrically connected to a controller 1, and the controller 1 and the motor 3 are electrically connected to each other.

[0028] The technical effect achieved by the above embodiment is: using five pressure sensors 122 to realize the comprehensive judgment of the top surface pressure of the placement pad 10, preventing a single excessive pressure from affecting the load-bearing identification, and improving the accuracy of cargo placement.

[0029] Working principle: First, the protective cross frame 6 is at the top of the limit ring 2, and the two are in the initial position. At this time, the photoelectric sensor 13 does not recognize the position of the transmission ring 5, so the electric hydraulic telescopic rod 111 is in the ejected state, so that the ramp platform 112 is located on the side of the placement pad 10, to help the staff to load and unload the goods. When the goods are placed on the placement pad 10, the pressure sensor 122 recognizes the pressure signal, and the five are comprehensively measured. When the pressure exceeds the preset value, the motor 3 is directly powered off and locked, and the transmission ring 5 cannot be driven to lift. If not, start the motor 3 to drive the screw 4 to rotate, so that the transmission ring 5 drives the protective cross frame 6 to rise as a whole. When the photoelectric sensor 13 recognizes the transmission ring 5 again, the controller sends a signal to move the electric hydraulic telescopic rod 111 downward, so that the ramp platform 112 is separated from the two sides of the placement pad 10 and retracts to the inside of the AGV body 1 to complete self-protection.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An AGV transport vehicle overload alarm mechanism, characterized in that: The invention comprises an AGV body (1), wherein a limit ring (2) is fixedly installed on the outer wall of the AGV body (1), a motor (3) is fixedly installed on the side of the AGV body (1), a screw (4) is fixedly sleeved on the output shaft of the motor (3), a transmission ring (5) is threadedly installed on the surface of the screw (4), a protective cross frame (6) is fixedly installed on the side of the transmission ring (5), a vertical pole (7) is fixedly installed on the bottom end of the protective cross frame (6), a photoelectric sensor (13) is fixedly installed on the inner wall of the AGV body (1) at a horizontal position at the top end of the screw (4), a placement pad (10) is fixedly installed on the top surface of the AGV body (1), a load-bearing component (12) is fixedly installed on the bottom of the placement pad (10), and moving components (11) are fixedly installed on the left and right sides of the placement pad (10) located on the top surface of the AGV body (1), and the top surface of the placement pad (10) is set to a rough surface structure; The load-bearing component (12) comprises an X-shaped plate (121), and a pressure sensor (122) is fixedly mounted on the top surface of the X-shaped plate (121).

2. The AGV transport vehicle overload alarm mechanism according to claim 1, characterized in that: The number of the pressure sensors (122) is five, and the five pressure sensors (122) are respectively located in the middle and at the top of the four corners of the X-shaped plate (121).

3. The AGV transport vehicle overload alarm mechanism according to claim 1, characterized in that: The bottom ends of the five pressure sensors (122) are electrically connected to a controller 1, and the controller 1 and the motor (3) are electrically connected to each other.

4. The AGV transport vehicle overload alarm mechanism according to claim 1, characterized in that: A second vertical pole (8) is fixedly mounted at the bottom of the right end of the protective cross frame (6), a reinforcing plate (9) is fixedly mounted inside the second vertical pole (8), a chuck (601) is fixedly mounted at the bottom end of the first vertical pole (7), and the first vertical pole (7) is movably sleeved inside the limiting ring (2).

5. The AGV transport vehicle overload alarm mechanism according to claim 1, characterized in that: The moving component (11) comprises an electric hydraulic telescopic rod (111), a ramp platform (112) is fixedly mounted on the top of the electric hydraulic telescopic rod (111), a roller (113) is rotatably mounted on the top surface of the ramp platform (112), and the electric hydraulic telescopic rod (111) is fixedly mounted on the top surface of the rear side of the AGV body (1), and is electrically connected to controller 2.

6. The AGV transport vehicle overload alarm mechanism according to claim 5, characterized in that: The electric hydraulic telescopic rod (111) is electrically connected to each other via controller 2 and the photoelectric sensor (13).

Images