Practical operation table for mechanical design practical training

Abstract

The utility model discloses a practical operation table for mechanical design practical training. Comprising a practical operation table, a horizontally arranged sliding groove is formed in the top of the practical operation table, a motor is arranged at the top of the practical operation table, a position moving assembly is arranged in the sliding groove, the position moving assembly is in sliding fit with the sliding groove, and a slip practical training assembly is arranged on the position moving assembly. The position moving assembly is provided with a load assembly for practical training of the slip practical training assembly. According to the utility model, under the condition of load, the slipping phenomenon during the mechanical training of the transmission principle can be obtained, so that students can conveniently perceive the slipping phenomenon during the mechanical design during the training.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical design training technology, specifically a practical training platform for mechanical design. Background Technology

[0002] With the continuous advancement of modern industry, the practical skills required of mechanical design students are increasing. Traditional mechanical design teaching mainly focuses on imparting theoretical knowledge, often leaving students lacking intuitive understanding and hands-on operation skills of actual mechanical systems. To cultivate high-quality mechanical design talents who can meet the needs of modern industrial development, a teaching device that can closely integrate theoretical knowledge with practical operation is needed. Mechanical design practical training platforms have emerged as a result, and testing and experimental platforms with transmission characteristics are particularly important in the practical training process.

[0003] In the process of using existing mechanical operation platforms, it is very common for the driven wheel to slip during experiments on transmission principles. Therefore, it is very important to enable students to easily understand the phenomenon of slippage and its causes during the operation process.

[0004] Therefore, a practical training platform for mechanical design is needed so that students can apply and review the techniques during hands-on practice. Utility Model Content

[0005] The purpose of this utility model is to provide a practical training platform for mechanical design, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A practical training platform for mechanical design includes a platform with a horizontally arranged sliding groove on its top. A motor is installed on the top of the platform. A position moving component is installed in the sliding groove and slides with the sliding groove. A slip training component is installed on the position moving component, and a training load component is installed on the position moving component.

[0008] In a further technical solution, the position moving component includes a moving block, a moving lead screw, a moving plate, and a turntable. The moving block is slidably connected in a sliding groove, the moving lead screw is rotatably connected in the sliding groove, the moving block and the moving lead screw are threadedly connected, the turntable is connected to the end of the moving lead screw, and the moving plate is horizontally disposed on top of the moving block.

[0009] A further technical solution is provided, wherein the slippage training component includes a mounting base, a rotating shaft, a driven pulley and a driven wheel, the motor is provided with a driving pulley, the mounting base is located on the top of the moving plate, the rotating shaft is horizontally rotatably connected to the mounting base, the driven pulley is located at one end of the rotating shaft, belts are fitted on the driving pulley and the driven pulley, and the driven wheel is located at the other end of the rotating shaft.

[0010] A further technical solution involves two training load components symmetrically arranged on the moving plate beside the driven wheel. Each training load component includes a load friction brake, a placement seat, a rotating disk, a rotating screw, and a sliding rod. The placement seat is located on one side of the moving plate. The rotating screw is threadedly connected to the placement seat and rotatably connected to the load friction brake. The sliding rod is horizontally mounted on the load friction brake and slides against the placement seat. The rotating disk is connected to the rotating screw.

[0011] In a further technical solution, the operating platform is provided with a glass protective cover between the driving pulley and the driven pulley.

[0012] In a further technical solution, the mobile plate is provided with an indicator arrow, and the top of the operating platform is provided with a numerical label at the indicator arrow.

[0013] In a further technical solution, the bottom of the movable plate is provided with two symmetrically arranged pulleys, and the operating platform is provided with a sliding groove for the pulleys to slide.

[0014] The beneficial effects of this utility model are:

[0015] In the experiment of load slippage training of the driven wheel, the motor works by rotating the driving pulley, which in turn drives the driven pulley to rotate via the belt, causing the shaft to rotate on the mounting base, which in turn drives the driven wheel to rotate. During the load test, rotating the rotating disk drives the rotating screw to rotate on the placement base. The rotation of the rotating screw causes the position of the load friction brake to move horizontally on the placement base via the sliding rod, moving the position of the load friction brake to the side of the driven wheel. When the driven wheel rotates, it increases friction, thereby generating a load.

[0016] The working principle of belt drives relies on the friction between the belt and pulleys to transmit power. When the load on the driven pulley increases, causing the belt tension to increase to a certain level, the maximum static friction between the belt and the driven pulley may be insufficient to maintain their relative stillness. In other words, the force the belt needs to transmit exceeds the maximum static friction between the belt and the driven pulley. According to the principles of tribology, when the external force exceeds the maximum static friction, relative sliding will occur between the objects, causing the belt to slip on the driven pulley. At this point, the friction between the belt and the driven pulley changes from static friction to kinetic friction. Since the kinetic friction force is less than the maximum static friction force, the speed of the driven pulley cannot keep up with the speed of the driving pulley, resulting in a decrease in power transmission efficiency, and even the driven pulley stopping. This allows students to understand the occurrence of slippage during practical training.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] Figure 1 Schematic diagram of the three-dimensional structure of this utility model Figure 1 .

[0019] Figure 2 Schematic diagram of the three-dimensional structure of this utility model Figure 2 .

[0020] Figure 3 : A partial three-dimensional structural schematic diagram of this utility model.

[0021] Figure 4 : A three-dimensional structural diagram of the training load component in this utility model.

[0022] Figure 5 :for Figure 3 Enlarged view of point A in the middle.

[0023] Figure labels: 1. Operating platform, 11. Sliding groove, 12. Numerical label, 13. Motor, 2. Drive pulley, 21. Position movement component, 3. Moving block, 31. Moving screw, 32. Moving plate, 33. Turntable, 34. Pulley, 35. Indicator arrow, 36. Slippage training component, 4. Mounting base, 41. Rotating shaft, 42. Driven pulley, 43. Driven wheel, 44. Belt, 45. Training load component, 5. Load friction brake, 51. Placement base, 52. Rotary disk, 53. Rotating screw, 54. Sliding rod, 55. Glass protective cover, 6. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please refer to Figure 1-5 As shown; a practical training platform for mechanical design includes a practical platform 1, a horizontally arranged sliding groove 11 on the top of the practical platform 1, a motor 2 on the top of the practical platform 1, a position moving component 3 in the sliding groove 11, the position moving component 3 slidingly engaging with the sliding groove 11, a slip training component 4 on the position moving component 3, and a training load component 5 for the slip training component 4.

[0026] In this embodiment, refer to Figure 3 As shown, the position moving component 3 includes a moving block 31, a moving screw 32, a moving plate 33, and a turntable 34. The moving block 31 is slidably connected in the sliding groove 11, the moving screw 32 is rotatably connected in the sliding groove 11, the moving block 31 and the moving screw 32 are threadedly connected, the turntable 34 is connected to the end of the moving screw 32, and the moving plate 33 is horizontally arranged on the top of the moving block 31.

[0027] When the position of the movable plate 33 is moved, the rotating turntable 34 drives the movable screw 32 to rotate in the sliding groove 11, which in turn drives the position of the movable block 31 to move horizontally in the sliding groove 11, thereby driving the position of the movable plate 33 to move. The movable plate 33 then drives the position of the driven pulley 43 to move, causing the belt 45 between the driven pulley 43 and the driving pulley 21 to be in a taut or slack state.

[0028] When the drive pulley 21 is taut, it drives the driven pulley 43 to rotate via the belt 45, which will make the driven pulley 43 rotate smoothly without slipping.

[0029] In a relaxed state, the driving pulley 21 drives the driven pulley 43 to rotate through the belt 45, which will cause slippage between the driven pulley 43 and the belt 45. This allows students to observe in real time the slippage between the belt 45 and the belt pulley during the practical training of transmission principles in mechanical operation.

[0030] In this embodiment, refer to Figure 5 As shown, the slippage training component 4 includes a mounting base 41, a rotating shaft 42, a driven pulley 43, and a driven wheel 44. The motor 2 is equipped with a driving pulley 21. The mounting base 41 is located on the top of the moving plate 33. The rotating shaft 42 is horizontally rotatably connected to the mounting base 41. The driven pulley 43 is located at one end of the rotating shaft 42. A belt 45 is fitted on the driving pulley 21 and the driven pulley 43. The driven wheel 44 is located at the other end of the rotating shaft 42.

[0031] In this embodiment, refer to Figure 4As shown, there are two training load components 5, which are symmetrically arranged on the moving plate 33 and located beside the driven wheel 44. Each training load component 5 includes a load friction brake 51, a placement seat 52, a rotating disk 53, a rotating screw 54, and a sliding rod 55. The placement seat 52 is located on one side of the moving plate 33. The rotating screw 54 is threadedly connected to the placement seat 52 and rotatably connected to the load friction brake 51. The sliding rod 55 is horizontally arranged on the load friction brake 51 and slides between it and the placement seat 52. The rotating disk 53 is connected to the rotating screw 54.

[0032] During the load slippage training experiment on the driven wheel 44, the motor 2 rotates through the driving pulley 21, which in turn drives the driven pulley 43 to rotate through the belt 45, causing the shaft to rotate on the mounting base 41, which in turn drives the driven wheel 44 to rotate. During the load experiment, the rotating disk 53 drives the rotating screw 54 to rotate on the placement base 52. The rotation of the rotating screw 54 causes the position of the load friction brake 51 to move horizontally on the placement base 52 through the sliding rod 55, moving the position of the load friction brake 51 to the side of the driven wheel 44. When the driven wheel 44 rotates, it increases friction, thereby generating a load.

[0033] When the load friction brake 51 comes into contact with the driven wheel 44, friction is generated. According to the formula for calculating friction (F=uN), when the load friction brake 51 applies a certain pressure to the driven wheel 44, it generates a frictional force that opposes the rotation of the driven wheel 44. This frictional force is equivalent to adding a load to the driven wheel 44.

[0034] When the driven pulley 44 is subjected to a load generated by the load friction brake 51, its rotation is impeded. Since the belt 45 connects the driving pulley 21 and the driven pulley 43, the rotational resistance of the driven pulley 43 is transmitted to the driving pulley 21 through the belt 45, causing a change in the tension of the belt 45. Specifically, the tension of the belt 45 on the driven pulley 44 side will increase in an attempt to overcome the load on the driven pulley 44 and drive the driven pulley 44 to continue rotating;

[0035] The working principle of belt drive 45 relies on the friction between belt 45 and pulley to transmit power. When the load on driven pulley 43 increases, causing the tension of belt 45 to increase to a certain extent, the maximum static friction between belt 45 and driven pulley 43 may be insufficient to maintain the relative stillness between them. That is, the force that belt 45 needs to transmit exceeds the maximum static friction between them. According to the principle of tribology, when the external force exceeds the maximum static friction, relative sliding will occur between the objects, and belt 45 will slip on driven pulley 43. At this time, the friction between belt 45 and driven pulley 43 changes from static friction to kinetic friction. The kinetic friction is less than the maximum static friction, causing the rotational speed of driven pulley 43 to be unable to keep up with the rotational speed of driving pulley 21, resulting in a decrease in power transmission efficiency, and even the driven pulley 43 stopping. This allows students to understand the occurrence of slippage during practical training.

[0036] During the practical training, the distance between one or two friction brakes and driven wheel 44 can be adjusted as needed to adjust the friction force of driven wheel 44 rotation and observe the slippage between belt 45 and driven pulley 43.

[0037] In this embodiment, the operating platform 1 is provided with a glass protective cover 6 between the driving pulley 21 and the driven pulley 43.

[0038] The glass protective cover 6 can protect students from hair or fingers falling into it during practical training experiments when the active pulley 21 and the driven pulley 43 are rotating, and when the position of the driven pulley 43 is being adjusted. The glass protective cover 6 also allows for real-time observation of the position and distance of the moving plate 33 and whether the driven belt 45 is slipping.

[0039] In this embodiment, the movable plate 33 is provided with an indicator arrow 36, and the top of the practical platform 1 is provided with a numerical label 13 at the indicator arrow 36.

[0040] When the moving plate 33 moves horizontally, it can cause the position of the indicator arrow 36 to move on the numerical label 13. This allows us to determine the distance the moving plate 33 moves when the driven pulley 43 slips and then moves, and when the driven pulley 43 moves without slipping again, and when the belt 45 is taut.

[0041] In this embodiment, the bottom of the movable plate 33 is provided with two symmetrically arranged pulleys 35, and the operating platform 1 is provided with a sliding groove 12 for the pulleys 35 to slide.

[0042] The pulley 35 slides within the groove 12, making the moving plate 33 move more smoothly.

[0043] The pulleys slide within the grooves, making the moving plate move more smoothly.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider 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 practical training platform for mechanical design, characterized in that, It includes a practical workbench (1), and the top of the practical workbench (1) is provided with a horizontally arranged sliding groove (11). The top of the operating table (1) is provided with a motor (2), and the sliding groove (11) is provided with a position moving component (3), and the position moving component (3) and the sliding groove (11) are in sliding cooperation; The position moving component (3) is provided with a slip training component (4), and the position moving component (3) is provided with a training load component (5) for the slip training component (4).

2. The practical training platform for mechanical design as described in claim 1, characterized in that, The position moving component (3) includes a moving block (31), a moving screw (32), a moving plate (33), and a turntable (34). The moving block (31) is slidably connected in the sliding groove (11), the moving screw (32) is rotatably connected in the sliding groove (11), the moving block (31) and the moving screw (32) are threadedly connected, the turntable (34) is connected to the end of the moving screw (32), and the moving plate (33) is horizontally arranged on the top of the moving block (31).

3. The practical training platform for mechanical design as described in claim 2, characterized in that, The slippage training component (4) includes a mounting base (41), a rotating shaft (42), a driven pulley (43), and a driven wheel (44). The motor (2) is equipped with a driving pulley (21). The mounting base (41) is located on the top of the moving plate (33). The rotating shaft (42) is horizontally rotatably connected to the mounting base (41). The driven pulley (43) is located at one end of the rotating shaft (42). A belt (45) is fitted on the driving pulley (21) and the driven pulley (43). The driven wheel (44) is located at the other end of the rotating shaft (42).

4. The practical training platform for mechanical design as described in claim 2, characterized in that, The training load component (5) is provided in two, and the two training load components (5) are symmetrically arranged on the moving plate (33) and located on the side of the driven wheel (44); Each of the training load components (5) includes a load friction brake (51), a placement seat (52), a rotating disk (53), a rotating screw (54), and a sliding rod (55). The placement seat (52) is located on one side of the moving plate (33). The rotating screw (54) is threadedly connected to the placement seat (52) and rotatably connected to the load friction brake (51). The sliding rod (55) is horizontally arranged on the load friction brake (51) and slides between it and the placement seat (52). The rotating disk (53) is connected to the rotating screw (54).

5. A practical training platform for mechanical design as described in claim 3, characterized in that, The operating platform (1) is provided with a glass protective cover (6) between the driving pulley (21) and the driven pulley (43).

6. The practical training platform for mechanical design as described in claim 2, characterized in that, The movable plate (33) is provided with an indicator arrow (36), and the top of the practical platform (1) is provided with a numerical label (13) at the indicator arrow (36).

7. A practical training platform for mechanical design as described in claim 2, characterized in that, The bottom of the movable plate (33) is provided with two symmetrically arranged pulleys (35), and the operating table (1) is provided with a sliding groove (12) for the pulleys (35) to slide.

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