Electrically-driven trolley with mechanical steering function

Abstract

The utility model relates to the technical field of driving trolleys, in particular to a mechanical steering electric driving trolley which comprises a base and a cam, a frame is arranged on the base, a driving motor is arranged in a first through groove, a first gear is arranged at the output end of the driving motor, a second gear is arranged on a rear wheel shaft, and the first gear is meshed with the second gear. A gear reduction mechanism is rotatably arranged on the frame, the second gear is meshed with the input end of the gear reduction mechanism, a first rotating shaft rotatably penetrates through the third through groove, the two ends of the first rotating shaft are connected with the output end of the gear reduction mechanism and the middle of the cam respectively, and the frame is integrally arranged. The integrated frame is adopted, the driving motor, the rear axle, the gear reduction mechanism and the steering shaft are all connected with the frame, only peripheral parts such as cams need to be assembled during competition, the whole structure is easy to assemble, deviation is not prone to occurring, the structure is not prone to looseness or displacement, and performance is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of driving carts, in particular to an electric driving cart with mechanical steering. Background Art

[0002] In recent years, with the progress of technology and the innovation of education methods, various engineering practice innovation competitions have become increasingly popular among students and teachers. These competitions can not only stimulate students' creativity and practical ability, but also promote their learning and mastery of professional knowledge in practice. Among many competition projects, the design and manufacture of electric driving carts is a very popular theme. Such carts usually need to automatically drive along a preset route and complete specific tasks, such as bypassing obstacles.

[0003] Currently, most of the electric driving carts in the competition works adopt a split structure, that is, each functional component (such as a motor, a controller, a sensor, etc.) is independently installed on the vehicle body. Although this design provides high flexibility, it also brings some problems. First of all, since each component needs to be installed and adjusted separately, the assembly process is relatively cumbersome and prone to deviation. In order to ensure the stability and accuracy of the cart, precise calibration of each component is required, which often takes a lot of time and effort. Moreover, the independently installed components may become loose or displaced during long-term operation or when encountering bumpy road conditions, thus affecting the overall performance of the cart. Content of the Utility Model

[0004] The utility model aims to at least solve the technical problems existing in the prior art. For this purpose, the utility model provides an electric driving cart with mechanical steering, which adopts an integrated vehicle frame, is simple to assemble, not prone to deviation, and the overall structure is not prone to looseness or displacement, with stable performance.

[0005] An electric drive trolley with mechanical steering according to some embodiments of the present invention includes a base and a cam. A frame is provided on the base. A first through groove and a second through groove are formed at the rear end of the frame. A drive motor is provided in the first through groove. A first gear is provided at the output end of the drive motor. A rear wheel shaft is rotatably inserted through the second through groove. A second gear is provided on the rear wheel shaft. Wheels are provided at both ends of the rear wheel shaft. The first gear meshes with the second gear. A gear reduction mechanism is rotatably provided on the frame. The second gear meshes with the input end of the gear reduction mechanism. A third through groove is formed on the frame. A first rotating shaft is rotatably inserted through the third through groove. Both ends of the first rotating shaft are respectively connected to the output end of the gear reduction mechanism and the middle part of the cam. A steering shaft is rotatably provided at the front end of the frame in the vertical direction. A steering wheel is rotatably provided at the bottom of the steering shaft. A connecting block is provided at the top of the steering shaft. A contact rod is connected to the connecting block. The contact rod is arranged corresponding to the outer contour line of the cam. The frame is integrally provided.

[0006] An electric drive trolley with mechanical steering according to some embodiments of the present invention has at least the following beneficial effects:

[0007] In the present invention, due to the integrally provided frame, a first through groove and a second through groove are formed at the rear end of the frame. A drive motor is provided in the first through groove, and a first gear is provided at the output end of the drive motor. A rear wheel shaft is rotatably inserted through the second through groove, and a second gear is provided on the rear wheel shaft. The first gear meshes with the second gear. The drive motor is assembled in the first through groove. When the drive motor works, it can drive the first gear to rotate, and the second gear rotates synchronously to drive the rear wheel shaft to rotate. At the same time, through the engagement of the second gear with the input end of the gear reduction mechanism, a third through groove is formed on the frame, and a first rotating shaft is rotatably inserted through the third through groove. Both ends of the first rotating shaft are respectively connected to the output end of the gear reduction mechanism and the middle part of the cam. The cam can control the direction, and the gear reduction mechanism reduces the rotation speed of the cam, effectively increasing the distance traveled by the trolley corresponding to one rotation of the cam. The present invention adopts an integrally formed frame, and the drive motor, rear wheel shaft, gear reduction mechanism, and steering shaft are all connected to the frame. During the competition, only peripheral components such as the cam need to be assembled. The overall structure is simple to assemble, not prone to deviation, and the structure is not prone to loosening or displacement, with stable performance.

[0008] An electric drive trolley with mechanical steering according to some embodiments of the present utility model, the gear reduction mechanism includes a third gear, a fourth gear, a fifth gear and a second rotating shaft. A fourth through groove is formed in the middle of the vehicle frame. The second rotating shaft is rotatably arranged in the fourth through groove. Both ends of the second rotating shaft are respectively connected with the third gear and the fourth gear. The first rotating shaft is connected with the fifth gear. The second gear meshes with the third gear. The fourth gear meshes with the fifth gear. The number of teeth of the second gear and the number of teeth of the fourth gear are respectively less than the number of teeth of the third gear and the number of teeth of the fifth gear.

[0009] An electric drive trolley with mechanical steering according to some embodiments of the present utility model, a connection platform is arranged at the front end of the vehicle frame. A fifth through groove is arranged on the connection platform. The steering shaft is arranged in the fifth through groove.

[0010] An electric drive trolley with mechanical steering according to some embodiments of the present utility model, a micrometer head is arranged on the connecting block. The micrometer head penetrates through the connecting block and is threadedly connected with the connecting block. The micrometer head is fixedly connected with the contact rod.

[0011] An electric drive trolley with mechanical steering according to some embodiments of the present utility model, connecting columns are arranged at both ends of the base. A positioning block is arranged between the tops of the two connecting columns. The positioning block is connected with the bottom of the vehicle frame.

[0012] An electric drive trolley with mechanical steering according to some embodiments of the present utility model, a clamping groove is formed in the bottom of the vehicle frame. The positioning block is clamped with the clamping groove. A plurality of first connection holes are formed in the positioning block. A plurality of second connection holes are formed in the clamping groove. The first connection holes and the second connection holes are arranged corresponding to each other.

[0013] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0015] Figure 1 is a schematic structural diagram of an embodiment of the present utility model Figure 1 。

[0016] Figure 2 is a schematic structural diagram of an embodiment of the present utility model Figure 2 。

[0017] Figure 3This is a schematic structural view of the base according to an embodiment of the present utility model.

[0018] Figure 4 This is a schematic structural view of the vehicle frame according to an embodiment of the present utility model.

[0019] Reference numerals: 1, base; 2, cam; 3, vehicle frame; 4, first through groove; 5, second through groove; 6, drive motor; 7, first gear; 8, rear wheel shaft; 9, second gear; 10, wheel; 11, gear reduction mechanism; 12, third through groove; 13, first rotating shaft; 14, steering shaft; 15, steering wheel; 16, connecting block; 17, contact rod; 18, third gear; 19, fourth gear; 20, fifth gear; 21, second rotating shaft; 22, fourth through groove; 23, connecting platform; 24, fifth through groove; 25, micrometer head; 26, connecting column; 27, clamping groove; 28, first connecting hole; 29, second connecting hole; 30, positioning block. Detailed implementation manners

[0020] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, left, right, front, back, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the module or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0022] In the description of the present utility model, if the first and second are described only for the purpose of distinguishing technical features, it should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0023] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0024] As Figures 1-4 shown, the embodiment of the present utility model provides an electrically driven vehicle with mechanical steering.

[0025] An electric drive trolley with mechanical steering, comprising a base 1 and a cam 2. A frame 3 is provided on the base 1. A first through groove 4 and a second through groove 5 are formed at the rear end of the frame 3. A drive motor 6 is arranged in the first through groove 4. A first gear 7 is arranged at the output end of the drive motor 6. A rear wheel shaft 8 is rotatably penetrated through the second through groove 5. A second gear 9 is arranged on the rear wheel shaft 8. Wheels 10 are arranged at both ends of the rear wheel shaft 8. The first gear 7 meshes with the second gear 9. A gear reduction mechanism 11 is rotatably arranged on the frame 3. The second gear 9 meshes with the input end of the gear reduction mechanism 11. A third through groove 12 is formed on the frame 3. A first rotating shaft 13 is rotatably penetrated through the third through groove 12. Both ends of the first rotating shaft 13 are respectively connected to the output end of the gear reduction mechanism 11 and the middle part of the cam 2. The front end of the frame 3 is rotatably provided with a steering shaft 14 in the vertical direction. A steering wheel 15 is rotatably arranged at the bottom of the steering shaft 14. A connecting block 16 is arranged at the top of the steering shaft 14. A contact rod 17 is connected to the connecting block 16. The contact rod 17 is arranged corresponding to the outer contour line of the cam 2. The frame 3 is integrally formed.

[0026] In the utility model, the frame 3 is integrally formed. A first through groove 4 and a second through groove 5 are formed at the rear end of the frame 3. The drive motor 6 is arranged in the first through groove 4. The first gear 7 is arranged at the output end of the drive motor 6. The rear wheel shaft 8 is rotatably penetrated through the second through groove 5. The second gear 9 is arranged on the rear wheel shaft 8. The first gear 7 meshes with the second gear 9. The drive motor 6 is assembled in the first through groove 4. When the drive motor 6 works, it can drive the first gear 7 to rotate, and the second gear 9 rotates synchronously to drive the rear wheel shaft 8 to rotate. At the same time, by meshing the second gear 9 with the input end of the gear reduction mechanism 11, a third through groove 12 is formed on the frame 3. The first rotating shaft 13 is rotatably penetrated through the third through groove 12. Both ends of the first rotating shaft 13 are respectively connected to the output end of the gear reduction mechanism 11 and the middle part of the cam 2. The cam 2 can control the direction. The gear reduction mechanism 11 reduces the rotation speed of the cam 2, effectively increasing the distance traveled by the trolley corresponding to one rotation of the cam 2. The utility model adopts an integrally formed frame 3. The drive motor 6, the rear wheel shaft 8, the gear reduction mechanism 11 and the steering shaft 14 are all connected to the frame 3. During the competition, only peripheral components such as the cam 2 need to be assembled. The overall structure is simple to assemble, not prone to deviation, and the structure is not prone to looseness or displacement, with stable performance.

[0027] It can be understood that the cam 2 is cut according to the actual site, and its cutting process belongs to the prior art and will not be elaborated here.

[0028] An electric drive trolley with mechanical steering according to this embodiment, the gear reduction mechanism 11 includes a third gear 18, a fourth gear 19, a fifth gear 20 and a second rotating shaft 21. A fourth through groove 22 is formed in the middle of the vehicle frame 3. The second rotating shaft 21 is rotatably arranged through the fourth through groove 22. Both ends of the second rotating shaft 21 are respectively connected to the third gear 18 and the fourth gear 19. The first rotating shaft 13 is connected to the fifth gear 20. The second gear 9 meshes with the third gear 18, and the fourth gear 19 meshes with the fifth gear 20. The number of teeth of the second gear 9 and the number of teeth of the fourth gear 19 are respectively less than the number of teeth of the third gear 18 and the number of teeth of the fifth gear 20. Specifically, the above settings place the third gear 18 and the cam 2 on one side of the vehicle frame 3, and the fourth gear 19 and the fifth gear 20 on the other side of the vehicle frame 3. The overall structure is compact, and it can be positioned with the vehicle frame 3 through the first rotating shaft 13 and the second rotating shaft 21. The above settings use two sets of reduction gears for deceleration, effectively increasing the distance traveled by the trolley corresponding to one rotation of the cam 2.

[0029] An electric drive trolley with mechanical steering according to this embodiment, a connection platform 23 is provided at the front end of the vehicle frame 3. A fifth through groove 24 is provided on the connection platform 23. The steering shaft 14 is arranged through the fifth through groove 24. Specifically, the above settings have structural stability.

[0030] An electric drive trolley with mechanical steering according to this embodiment, a micrometer head 25 is provided on the connection block 16. The micrometer head 25 penetrates through the connection block 16 and is threadedly connected to the connection block 16. The micrometer head 25 is fixedly connected to the contact rod 17. Specifically, the above settings can finely adjust the steering shaft 14 to adjust the direction of the steering wheel 15.

[0031] An electric drive trolley with mechanical steering according to this embodiment, connection columns 26 are provided at both ends of the base 1. A positioning block 30 is provided between the tops of the two connection columns 26. The positioning block 30 is connected to the bottom of the vehicle frame 3. Specifically, the above structure raises the horizontal height of the vehicle frame 3, facilitating the assembly of components such as the rear wheels and the cam 2.

[0032] An electric drive trolley with mechanical steering according to this embodiment, a clamping groove 27 is formed in the bottom of the vehicle frame 3. The positioning block 30 is clamped with the clamping groove 27. A plurality of first connection holes 28 are formed in the positioning block 30, and a plurality of second connection holes 29 are formed in the clamping groove 27. The first connection holes 28 and the second connection holes 29 are arranged correspondingly. Specifically, the above settings have good connection stability.

[0033] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An electric drive trolley with mechanical steering, characterized in that: It includes a base and a cam. A vehicle frame is provided on the base. A first through groove and a second through groove are formed at the rear end of the vehicle frame. A driving motor is arranged in the first through groove. A first gear is arranged at the output end of the driving motor. A rear wheel shaft is rotatably inserted through the second through groove. A second gear is arranged on the rear wheel shaft. Wheels are arranged at both ends of the rear wheel shaft. The first gear meshes with the second gear. A gear reduction mechanism is rotatably arranged on the vehicle frame. The second gear meshes with the input end of the gear reduction mechanism. A third through groove is formed on the vehicle frame. A first rotating shaft is rotatably inserted through the third through groove. Both ends of the first rotating shaft are respectively connected to the output end of the gear reduction mechanism and the middle part of the cam. A steering shaft is rotatably arranged at the front end of the vehicle frame in the vertical direction. A steering wheel is rotatably arranged at the bottom of the steering shaft. A connecting block is arranged at the top of the steering shaft. A contact rod is connected to the connecting block. The contact rod is arranged corresponding to the outer contour line of the cam. The vehicle frame is integrally arranged.

2. The electric drive cart with mechanical steering according to claim 1, characterized in that: The gear reduction mechanism includes a third gear, a fourth gear, a fifth gear and a second rotating shaft. A fourth through groove is formed in the middle of the vehicle frame. The second rotating shaft is rotatably inserted through the fourth through groove. Both ends of the second rotating shaft are respectively connected to the third gear and the fourth gear. The first rotating shaft is connected to the fifth gear. The second gear meshes with the third gear. The fourth gear meshes with the fifth gear. The number of teeth of the second gear and the number of teeth of the fourth gear are respectively less than the number of teeth of the third gear and the number of teeth of the fifth gear.

3. The electric drive trolley with mechanical steering according to claim 1, characterized in that: A connecting platform is arranged at the front end of the vehicle frame. A fifth through groove is arranged on the connecting platform. The steering shaft is inserted through the fifth through groove.

4. The electric drive trolley with mechanical steering according to claim 1, characterized in that: A micrometer head is arranged on the connecting block. The micrometer head penetrates through the connecting block and is threadedly connected to the connecting block. The micrometer head is fixedly connected to the contact rod.

5. The electric drive trolley with mechanical steering according to claim 1, characterized in that: Connecting columns are arranged at both ends of the base. A positioning block is arranged between the tops of the two connecting columns. The positioning block is connected to the bottom of the vehicle frame.

6. The electric drive trolley with mechanical steering according to claim 5, characterized in that: A clamping groove is formed at the bottom of the vehicle frame. The positioning block is clamped with the clamping groove. A plurality of first connection holes are formed in the positioning block. A plurality of second connection holes are formed in the clamping groove. The first connection holes and the second connection holes are arranged corresponding to each other.

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