Speed reducer for transmission of intelligent logistics AGV

Abstract

The utility model relates to the technical field of speed reducers, in particular to a speed reducer for transmission of an intelligent logistics AGV (Automatic Guided Vehicle), which comprises a box body, a box cover is screwed on the left side of the box body, and a transmission assembly is arranged in the box body; the transmission assembly comprises a gear A, a gear B and a gear C, the gear A is fixedly sleeved with an output shaft, the output shaft is rotationally connected with the box body and the box cover, the joints of the two sides of the output shaft are provided with a first oil seal, a first bearing, a third oil seal and a second bearing respectively, and the gear B is meshed with the gear C. The rotating speed of the output shaft is reduced, the torsion is increased, the driving force for the intelligent logistics AGV trolley is improved through the transmission assembly, the transmission assembly adopts a three-gear indirect transmission mode, three-gear transmission provides more design freedom degrees, the number of teeth of each gear is designed and adjusted, the size of each gear and the number of teeth of each gear are adjusted, and the transmission efficiency of the intelligent logistics AGV trolley is improved. Various required transmission ratio and torque requirements can be met, and the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reduction devices, in particular to a speed reducer for the transmission of an intelligent logistics AGV vehicle. Background Art

[0002] The intelligent logistics AGV vehicle is a core device in intelligent logistics. It transports materials in a warehouse or production site through automatic guidance technology without manual intervention, which can significantly improve logistics efficiency and reduce labor costs.

[0003] In the transmission system of the intelligent logistics AGV vehicle, specially designed high-precision speed reducers are usually used. These speed reducers have a compact structure, strong load-bearing capacity, high efficiency and extremely high durability. In the prior art, general speed reducers are single-axis. When applied to vehicle equipment, usually two speed reducers are required, the application cost is relatively high, and the synchronization of the two speed reducers needs to be specially debugged. During later use, the two speed reducers are also prone to differential debugging.

[0004] Therefore, it is necessary to propose a speed reducer with an integrated double output shaft to solve the above technical problems. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings in the prior art, and to propose a speed reducer for the transmission of an intelligent logistics AGV vehicle.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A speed reducer for the transmission of an intelligent logistics AGV vehicle, including a box body. A box cover is screwed and installed on the left side of the box body. A transmission component is arranged inside the box body. The transmission component includes gear A, gear B and gear C. An output shaft is fixedly sleeved outside gear A. The output shaft is rotationally connected with the box body and the box cover. First oil seals, first bearings, third oil seals and second bearings are respectively arranged at the connection parts on both sides of the output shaft. Gear B meshes with gear C. Third bearings and fourth bearings are respectively arranged at the connection parts on both sides of gear B. Gear A meshes with gear B. Fifth bearings and sixth bearings are respectively arranged at the connection parts on both sides of gear A. A connection notch is fixedly connected to the right side of gear A. A motor is installed on the right side of the box body. The output end of the motor is inserted into the connection notch. A tightening ring is sleeved outside the connection notch.

[0008] Preferably, the first oil seal and the first bearing are arranged at the rotational junction of the output shaft and the box body, and the first oil seal is located outside the first bearing.

[0009] Preferably, the third oil seal and the second bearing are arranged at the rotational junction of the output shaft and the box cover, and the third oil seal is located outside the second bearing.

[0010] Preferably, the box body is arranged in an L shape, and an upper cavity and a lower cavity are distributed inside the box body. A second oil seal is arranged between the output shaft and the right side of the upper cavity.

[0011] Preferably, the box body is provided with a groove corresponding to the installation position of gear B. The third bearing is located in the left groove, and the fourth bearing is located in the right groove.

[0012] Preferably, the fifth bearing is located at the rotational connection between gear A and the inside of the box body, and the sixth bearing is located at the rotational connection between the connecting notch and the box body.

[0013] Preferably, a fourth oil seal is arranged outside the sixth bearing.

[0014] Preferably, the number of teeth of gear A is much smaller than that of gear B, and the number of teeth of gear C is equivalent to that of gear B.

[0015] In the present utility model, for the speed reducer for driving a smart logistics AGV cart, a power source is provided by a motor. Starting the motor can drive gear A to rotate. When gear A rotates, the meshing gear B above it rotates. Since the number of teeth of gear B is much larger than that of gear A, when gear B rotates, the rotation speed of gear B decreases and the torque increases. When gear B is driven to rotate, the meshing gear C above it is driven to rotate. Since the number of teeth of gear C is equivalent to that of gear B, the output shaft fixedly connected to gear C obtains a rotational force, and the rotation speed is lower than that of the motor while the torque increases. Both sides of the output shaft protrude outside the box body, making the speed reduction device of the present utility model a one-piece double-output shaft design. Tires can be installed at both ends of the output shaft to achieve synchronous power output and also save costs.

[0016] In the present utility model, for the speed reducer for driving a smart logistics AGV cart, through the provided transmission assembly, in this speed reduction device, by using the indirect transmission method of three gears, the output shaft obtains a larger torque compared to the output end of the motor, and at the same time the rotation speed decreases accordingly, making it more stable when providing driving force for the smart logistics AGV cart. The rotation speed of the output shaft driven by the three gears decreases and the torque increases. The size of the gear transmission system is relatively small, saving space and being suitable for short-distance transmission. Compared with directly using two gears, the three-gear transmission provides more design freedoms. By designing and adjusting the number of teeth and the size of each gear, various required transmission ratios and torque requirements can be achieved, improving the applicability of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure diagram of a speed reducer for driving a smart logistics AGV cart proposed by the present utility model Figure 1 ;

[0018] Figure 2 Schematic three-dimensional structure of a speed reducer for the transmission of an intelligent logistics AGV vehicle proposed by the present utility model Figure 2 ;

[0019] Figure 3 Schematic cross-sectional view of a speed reducer for the transmission of an intelligent logistics AGV vehicle proposed by the present utility model.

[0020] In the figure: 1, output shaft; 2, first oil seal; 3, first bearing; 4, box body; 5, second oil seal; 6, gear C; 7, second bearing; 8, third oil seal; 9, box cover; 10, third bearing; 11, gear B; 12, fourth bearing; 13, fifth bearing; 14, gear A; 15, sixth bearing; 16, fourth oil seal; 17, tightening ring; 18, motor. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Referring to Figures 1 - 3 , a speed reducer for the transmission of an intelligent logistics AGV vehicle includes a box body 4. A box cover 9 is screwed and installed on the left side of the box body 4. A transmission assembly is arranged inside the box body 4. The transmission assembly includes a gear A 14, a gear B 11, and a gear C 6. An output shaft 1 is fixedly sleeved outside the gear A 14. The output shaft 1 is rotationally connected to the box body 4 and the box cover 9. First oil seals 2, first bearings 3, third oil seals 8, and second bearings 7 are respectively arranged at the connection parts on both sides of the output shaft 1. The gear B 11 meshes with the gear C 6. Third bearings 10 and fourth bearings 12 are respectively arranged at the connection parts on both sides of the gear B 11. The gear A 14 meshes with the gear B 11. Fifth bearings 13 and sixth bearings 15 are respectively arranged at the connection parts on both sides of the gear A 14. A connection notch is fixedly connected to the right side of the gear A 14. A motor 18 is installed on the right side of the box body 4. The output end of the motor 18 is inserted into the connection notch. A tightening ring 17 is sleeved outside the connection notch. A fourth oil seal 16 is arranged outside the sixth bearing 15. The number of teeth of the gear A 14 is much smaller than the number of teeth of the gear B 11, and the number of teeth of the gear C 6 is equivalent to the number of teeth of the gear B 11.

[0023] Through the above structure, the tightening connection between the output end of the motor 18 and the connection notch on the left side of the gear A 14 is realized by using the tightening ring 17, improving the power transmission efficiency of the output end of the motor 18.

[0024] In this embodiment, the first oil seal 2 and the first bearing 3 are arranged at the rotational junction of the output shaft 1 and the box body 4. The first oil seal 2 is located outside the first bearing 3. The third oil seal 8 and the second bearing 7 are arranged at the rotational junction of the output shaft 1 and the box cover 9, and the third oil seal 8 is located outside the second bearing 7.

[0025] With the above structure, the first oil seal 2 and the third oil seal 8 are provided to keep the rotational joints on both sides of the output shaft 1 sealed, prevent the leakage of the transmission lubricating oil inside the box body 4, and ensure the meshing transmission efficiency between the gears.

[0026] In this embodiment, the box body 4 is arranged in an L shape, and an upper cavity and a lower cavity are distributed inside the box body 4. A second oil seal 5 is arranged between the output shaft 1 and the right side of the upper cavity.

[0027] With the above structure, the upper cavity mainly serves as a stable rotational space for the output shaft 1. The second oil seal 5 arranged between the output shaft 1 and the right side of the upper cavity isolates the right side cavity of the output shaft 1 from the left side cavity. It is not necessary to add transmission lubricating oil to the right side cavity, making the distribution of the transmission space inside the box body 4 clear and also reducing the usage amount of the transmission lubricating oil accordingly.

[0028] In this embodiment, the box body 4 is provided with a groove corresponding to the installation position of gear B. The third bearing 10 is located in the left groove, and the fourth bearing 12 is located in the right groove.

[0029] With the above structure, the third bearing 10 and the fourth bearing 12 are provided to reduce the rotational friction resistance at the installation position of gear B and improve the meshing transmission efficiency of gear B.

[0030] In this embodiment, the fifth bearing 13 is located at the rotational junction of the gear A 14 and the inside of the box body 4, and the sixth bearing 15 is located at the rotational junction of the connecting notch and the box body 4.

[0031] With the above structure, the fifth bearing 13 and the sixth bearing 15 are provided to reduce the rotational friction resistance at the installation position of gear A and improve the transmission efficiency of gear A.

[0032] In the present utility model, during use, the motor 18 is started to provide a driving power source. Under the rotation of the motor 18, the output end drives the connection notch fixedly connected to the right side of the gear A14 to rotate. As a result, the gear A14 is driven to rotate in the same rotation as the motor 18. At the same time, the gear B11 meshing with the gear A14 on the upper side also rotates under the meshing transmission effect. Since the number of teeth of the gear B11 is much larger than that of the gear A, during the transmission process, the rotational speed of the gear B11 decreases and the torque increases. When the gear B11 is driven to rotate, the gear C6 meshing with it above is driven to rotate. Since the number of teeth of the gear C6 is equivalent to that of the gear B11, the output shaft 1 fixedly connected to the gear C6 obtains a rotational force, and the rotational speed is lower and the torque is larger compared to the motor 18. Both sides of the output shaft 1 protrude outside the box body 4, so both ends of the output shaft 1 provide synchronous driving forces for the transmission system of the intelligent logistics AGV vehicle.

[0033] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

[0034] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A speed reducer for the drive of an intelligent logistics AGV trolley, characterized in that, It includes a box body (4), a box cover (9) is screwed and installed on the left side of the box body (4), and a transmission component is arranged inside the box body (4). The transmission component includes a gear A (14), a gear B (11) and a gear C (6). An output shaft (1) is fixedly sleeved outside the gear A (14). The output shaft (1) is rotatably connected to the box body (4) and the box cover (9). First oil seals (2), first bearings (3), third oil seals (8) and second bearings (7) are respectively arranged at the connection parts on both sides of the output shaft (1). The gear B (11) meshes with the gear C (6). Third bearings (10) and fourth bearings (12) are respectively arranged at the connection parts on both sides of the gear B (11). The gear A (14) meshes with the gear B (11). Fifth bearings (13) and sixth bearings (15) are respectively arranged at the connection parts on both sides of the gear A (14). A connection notch is fixedly connected to the right side of the gear A (14). A motor (18) is installed on the right side of the box body (4). The output end of the motor (18) is inserted into the connection notch, and a tightening ring (17) is sleeved outside the connection notch.

2. The speed reducer for the transmission of the intelligent logistics AGV vehicle according to claim 1, characterized in that, The first oil seal (2) and the first bearing (3) are arranged at the rotating junction of the output shaft (1) and the box body (4), and the first oil seal (2) is located outside the first bearing (3).

3. A speed reducer for the drive of an intelligent logistics AGV trolley according to claim 1, characterized in that, The third oil seal (8) and the second bearing (7) are arranged at the rotating junction of the output shaft (1) and the box cover (9), and the third oil seal (8) is located outside the second bearing (7).

4. A speed reducer for the transmission of an intelligent logistics AGV cart according to claim 1, characterized in that, The box body (4) is arranged in an L shape, and an upper cavity and a lower cavity are distributed inside the box body (4). A second oil seal (5) is arranged between the output shaft (1) and the right side of the upper cavity.

5. A speed reducer for the transmission of an intelligent logistics AGV cart according to claim 1, characterized in that A groove is formed in the box body (4) corresponding to the installation position of the gear B. The third bearing (10) is located in the left groove, and the fourth bearing (12) is located in the right groove.

6. A speed reducer for the transmission of an intelligent logistics AGV trolley according to claim 1, characterized in that, The fifth bearing (13) is located at the rotating junction of the gear A (14) and the inside of the box body (4), and the sixth bearing (15) is located at the rotating junction of the connection notch and the box body (4).

7. A speed reducer for the transmission of an intelligent logistics AGV cart according to claim 1, characterized in that, A fourth oil seal (16) is arranged outside the sixth bearing (15).

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