Anti-idling device of dynamic platform
By installing sliding and driving components on the motion platform, and using a drive motor and electric push rod to adjust the belt tension, the problem of slippage caused by loose pulleys was solved, and stable operation of the motion platform was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI GUOWEI MUTUAL ENTERTAINMENT CULTURE TECH CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-17
AI Technical Summary
The existing motion platform is prone to slippage and loosening of the pulleys during the driving process, resulting in free spin and affecting the normal operation of the motion platform.
By installing sliding and driving components on the load-bearing frame, the pulley is driven to rotate by a drive motor, and the belt tension is adjusted by an anti-free-spinning component and an electric push rod to prevent the pulley from spinning freely.
This effectively prevents the pulleys from spinning freely when moving back and forth on the motion platform, thus improving the operational stability and safety of the motion platform.
Smart Images

Figure CN224137807U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motion platform technology, specifically to an anti-idling device for motion platforms. Background Technology
[0002] A motion platform is a device that simulates a dynamic environment or motion experience, and it is widely used in entertainment, training, research, and medical rehabilitation. It creates a realistic sense of motion by precisely controlling the platform's movement, tilting, and rotation.
[0003] The existing motion platform moves back and forth along the inner surface of the I-beam track via pulleys, and relies on the inner surface of the I-beam track to form a supporting force. However, during the process of the motion platform rotating the pulley by the drive motor, a pulley is fixedly sleeved on the output shaft of the drive motor and a pulley is fixedly sleeved on the rotating shaft of the pulley. The two sets of pulleys are connected by belt tension to achieve transmission. However, the belt is prone to loosening and slippage during operation, causing the pulley to spin freely. To prevent the pulley from spinning freely when the motion platform moves back and forth, we propose an anti-spinning device for the motion platform. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an anti-free-spinning device for a motion platform. By using pulley two in two sets of sliding components, the supporting frame can slide back and forth on two sets of I-beams. A drive assembly drives pulley two to rotate, allowing the supporting frame to slide back and forth on the two sets of I-beams. The anti-free-spinning component prevents pulley two from spinning freely during the motion platform's back and forth movement. An electric push rod pushes rotating wheel one to press against the belt. A pressure sensor adjusts the push force of the electric push rod based on the belt tension pressure on rotating wheel one, further preventing pulley two from spinning freely during the motion platform's back and forth movement, thus solving the problems mentioned earlier.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-free-spinning device for a dynamic platform, comprising a dynamic platform, a support frame fixedly installed at the bottom of the dynamic platform, I-beams provided on both the left and right sides of the support frame, and mounting plates fixedly connected to both the left and right sides of the support frame, a sliding assembly installed between the mounting plates and the I-beams, a drive assembly installed inside the support frame, and an anti-free-spinning assembly also installed on the mounting plates; the sliding assembly includes mounting plate five and mounting plate three, wherein mounting plate five... Mounting plate three and mounting plate three are fixedly mounted on mounting plate one. Mounting plate five has a rotating rod three rotatably passing through its bottom. A pulley two is fixedly connected to the end of the rotating rod three away from mounting plate five. Several fixing blocks are fixedly connected to the bottom of mounting plate three. A rotating rod two is rotatably passing through the fixing blocks. A pulley one is fixedly connected to the end of the rotating rod two away from the fixing blocks. A second pulley groove and a first pulley groove are respectively opened on the top and bottom sides of the inside of the I-beam. The pulley two is slidably connected to the first pulley groove, and the pulley one is slidably connected to the second pulley groove.
[0006] Preferably, the drive assembly includes a drive motor, which is fixedly installed on the inner bottom side of the support frame. A rotating rod is fixedly connected to the output shaft end of the drive motor. Two sets of bearing seats are sleeved on the rotating rod, and both sets of bearing seats are fixedly installed on the inner bottom side of the support frame. Pulleys are fixedly sleeved on the side of the rotating rod away from the drive motor and on the rotating rod, and a belt is tensioned between the two sets of pulleys.
[0007] Preferably, the anti-idle rotation component includes a second mounting plate, which is fixedly mounted on a first mounting plate. A fourth mounting plate is fixedly connected to the top of the second mounting plate. A first sliding rod is slidably mounted on the fourth mounting plate. A first limiting plate is fixedly connected to the top side of the first sliding rod. A first fixing plate is fixedly connected to the bottom side of the first sliding rod. A spring is sleeved on the first sliding rod. The top and bottom sides of the spring abut against the bottom side of the fourth mounting plate and the top side of the first fixing plate, respectively. Connecting plates are fixedly connected to the left and right sides of the bottom of the first fixing plate. A second rotating wheel is rotatably mounted between the two sets of second connecting plates. The bottom side of the second rotating wheel abuts against the outer surface of the belt.
[0008] Preferably, the left and right outer surfaces of the pulley are fixedly connected to a stop block, the outer surface of the pulley is fitted with two sets of baffles, the stop block is provided with a sliding groove, and the side of the baffle near the stop block is fixedly connected to a slider, which is slidably connected to the sliding groove.
[0009] Preferably, the load-bearing frame is made of high-strength steel.
[0010] Preferably, an electric push rod is fixedly installed on the side of the mounting plate away from the drive motor. A fixing plate is fixedly connected to the output shaft end of the electric push rod. A fixing plate is provided on the rear side of the fixing plate. A sliding rod is fixedly connected to each of the four front corners of the fixing plate. The front end of the sliding rod passes through the fixing plate and is fixedly connected to a limit plate. A pressure sensor is provided between the fixing plate and the fixing plate. A connecting plate is fixedly connected to the left and right rear sides of the fixing plate. A rotating wheel is rotatably installed between the two sets of connecting plates. The outer surface of the rotating wheel abuts against the outer surface of the belt.
[0011] This invention provides an anti-idle rotation device for a dynamic platform. Compared with the prior art, it has the following advantages:
[0012] 1. The anti-free-spinning device for a dynamic platform includes a sliding assembly installed between the mounting plate and the I-beam. The load-bearing frame can slide back and forth on the two sets of I-beams through the pulleys in the two sets of sliding assemblies. A drive assembly is installed inside the load-bearing frame to drive the pulleys to rotate, thereby allowing the load-bearing frame to slide back and forth on the two sets of I-beams. The anti-free-spinning assembly installed on the mounting plate prevents the pulleys from spinning freely when the dynamic platform moves back and forth.
[0013] 2. The anti-free-spinning device of the dynamic platform is to push the electric push rod so that the rotating wheel one presses the belt, and the pressure sensor adjusts the pushing force of the electric push rod according to the tension pressure of the belt on the rotating wheel one, so as to further prevent the pulley two from spinning freely when the dynamic platform moves back and forth. Attached Figure Description
[0014] Figure 1 This is a front view structural diagram of the main body of Embodiment 1 of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the drive component according to Embodiment 1 of this utility model;
[0016] Figure 3 This is a schematic diagram of the internal structure of the sliding component according to Embodiment 1 of this utility model;
[0017] Figure 4 This is a schematic diagram of the external structure of the pulley in Embodiment 1 of this utility model;
[0018] Figure 5 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0019] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point B;
[0020] Figure 7This utility model Figure 5 Enlarged schematic diagram of the structure at point C.
[0021] In the diagram: 1. Dynamic platform; 2. Support frame; 3. I-beam; 4. First pulley groove; 5. Second pulley groove; 6. Drive motor; 7. Bearing housing; 8. Rotating rod one; 9. Mounting plate one; 10. Pulley; 11. Stop block; 12. Slide groove; 13. Baffle; 14. Slider; 15. Mounting plate two; 16. Mounting plate three; 17. Fixing block; 18. Rotating rod two; 19. Pulley one; 20. Electric pusher 21. Rod; 22. Connecting plate 1; 23. Rotating wheel 1; 24. Pulley 2; 25. Rotating rod 3; 26. Mounting plate 4; 27. Spring; 28. Sliding rod 1; 29. Limiting plate 1; 30. Fixing plate 1; 31. Connecting plate 2; 32. Rotating wheel 2; 33. Mounting plate 5; 34. Belt; 35. Fixing plate 3; 36. Sliding rod 2; 37. Limiting plate 2; 38. Pressure sensor. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1: Please refer to Figure 1-6 This utility model provides a technical solution: a device for preventing dry rotation of a dynamic platform, including a dynamic platform 1, a load-bearing frame 2 fixedly installed at the bottom of the dynamic platform 1, I-beams 3 provided on both the left and right sides of the load-bearing frame 2, and mounting plates 9 fixedly connected to both the left and right sides of the load-bearing frame 2, a sliding component installed between the mounting plates 9 and the I-beams 3, a drive component installed inside the load-bearing frame 2, and an anti-dry rotation component installed on the mounting plates 9.
[0024] The device allows the load-bearing frame 2 to slide back and forth on the two sets of I-beams 3 by installing a sliding component between the mounting plate 9 and the I-beam 3. The sliding component is driven by a drive component installed inside the load-bearing frame 2, and the anti-free-spin component prevents the drive component and the sliding component from experiencing power free-spinning.
[0025] The sliding assembly includes mounting plate 5 32 and mounting plate 3 16. Both mounting plate 5 32 and mounting plate 3 16 are fixedly mounted on mounting plate 1 9. A rotating rod 3 24 is rotatably passed through the bottom of mounting plate 5 32. A pulley 2 23 is fixedly connected to the end of the rotating rod 3 24 away from mounting plate 5 32. Several fixing blocks 17 are fixedly connected to the bottom of mounting plate 3 16. A rotating rod 2 18 is rotatably passed through the fixing block 17. A pulley 1 19 is fixedly connected to the end of the rotating rod 2 18 away from the fixing block 17. A second pulley groove 5 and a first pulley groove 4 are respectively opened on the top and bottom sides of the I-beam 3. The pulley 2 23 is slidably connected to the first pulley groove 4, and the pulley 1 19 is slidably connected to the second pulley groove 5.
[0026] The drive assembly includes a drive motor 6, which is fixedly installed on the inner bottom side of the support frame 2. The output shaft end of the drive motor 6 is fixedly connected to a rotating rod 8. Two sets of bearing seats 7 are sleeved on the rotating rod 8. Both sets of bearing seats 7 are fixedly installed on the inner bottom side of the support frame 2. Pulleys 10 are fixedly sleeved on the side of the rotating rod 8 away from the drive motor 6 and on the rotating rod 24. A belt 33 is tensioned and sleeved between the two sets of pulleys 10.
[0027] The drive motor 6 drives the rotating rod 8 to rotate on the bearing seat 7, thereby driving the pulley 10 fixedly sleeved on the rotating rod 8 to rotate. The belt 33 drives another set of pulleys 10 fixedly sleeved on the rotating rod 24 to rotate, thereby rotating the rotating rod 24. This, in turn, rotates the pulley 23 fixedly connected to the rotating rod 24, causing the pulley 23 to move on the first pulley groove 4 on the bottom side of the inner surface of the I-beam 3. During the sliding of the pulley 23, since the bottom of the mounting plate 3 16 is fixedly connected to several fixed blocks 17, and the rotating rod 2 18 is rotatably inserted through the several fixed blocks 17, the pulley 19 fixedly connected to one end of the rotating rod 2 18 moves on the second pulley groove 5 on the top side of the inner surface of the I-beam 3, thereby realizing the back-and-forth sliding of the bearing frame 2 on the I-beams 3 on both sides.
[0028] The anti-idling component includes a second mounting plate 15, which is fixedly mounted on a first mounting plate 9. A fourth mounting plate 25 is fixedly connected to the top of the second mounting plate 15. A first sliding rod 27 is slidably mounted on the fourth mounting plate 25. A first limiting plate 28 is fixedly connected to the top side of the first sliding rod 27. A first fixing plate 29 is fixedly connected to the bottom side of the first sliding rod 27. A spring 26 is sleeved on the first sliding rod 27. The top and bottom sides of the spring 26 abut against the bottom side of the fourth mounting plate 25 and the top side of the first fixing plate 29, respectively. A second connecting plate 30 is fixedly connected to the left and right sides of the bottom of the first fixing plate 29. A second rotating wheel 31 is rotatably mounted between the two sets of second connecting plates 30. The bottom side of the second rotating wheel 31 abuts against the outer surface of the belt 33.
[0029] During the process of the drive motor 6 driving the rotating rod 8, thereby driving the two sets of pulleys 10 through the belt 33, the belt 33 is prone to loosening and slipping, causing the pulley 23 to spin freely. To prevent the pulley 23 from spinning freely, the rotating wheel 31 abuts against the outer surface of the belt 33, and the rotating wheel 31 is pressed against the belt 33 by the spring 26 to prevent the belt 33 from loosening.
[0030] Both sides of the outer surface of the pulley 10 are fixedly connected to the stop block 11. The outer surface of the pulley 10 is fitted with two sets of baffles 13. The stop block 11 is provided with a sliding groove 12. The side of the baffle 13 near the stop block 11 is fixedly connected to the slider 14. The slider 14 is slidably connected to the sliding groove 12. During the transmission of the belt 33, the two sets of baffles 13 limit the movement. The two sets of baffles 13 are slidably connected to the sliding groove 12 on the stop block 11 through the slider 14, thereby reducing the edge wear during the transmission of the belt 33.
[0031] The load-bearing frame 2 is made of high-strength steel, which improves the load-bearing strength of the load-bearing frame 2.
[0032] In Embodiment 2, unlike Embodiment 1 of this application, to further prevent the pulley 23 from spinning freely when the motion platform 1 moves back and forth, specifically, an electric push rod 20 is fixedly installed on the side of the mounting plate 1 9 away from the drive motor 6. The output shaft end of the electric push rod 20 is fixedly connected to a fixing plate 2 34. A fixing plate 35 is provided on the rear side of the fixing plate 2 34. Sliding rods 2 36 are fixedly connected to the four corners of the front side of the fixing plate 3 35. The front end of the sliding rods 2 36 passes through the fixing plate 2 34 and is fixedly connected to a limit plate 2 37. A pressure sensor 38 is provided between the fixing plate 2 34 and the fixing plate 3 35. Connecting plates 1 21 are fixedly connected to the left and right sides of the rear part of the fixing plate 3 35. A rotating wheel 22 is rotatably installed between the two sets of connecting plates 1 21. The outer surface of the rotating wheel 22 abuts against the outer surface of the belt 33.
[0033] The electric push rod 20 pushes the fixed plate 2 34. Since the fixed plate 3 35 slides on the fixed plate 2 34 through the sliding rod 2 36 and is limited by the limiting plate 2 37 to prevent it from falling off, the outer surface of the rotating wheel 1 22 abuts against the outer surface of the belt 33. Then, the connecting plate 1 21 pushes the fixed plate 3 35. A pressure sensor 38 is set between the fixed plate 2 34 and the fixed plate 3 35 to detect the tension pressure of the belt 33, thereby adjusting the thrust of the electric push rod 20 and further preventing the pulley 2 23 from spinning freely when the dynamic platform 1 moves back and forth.
[0034] Working principle: The device drives the rotating rod 8 to rotate on the bearing seat 7 via the drive motor 6, thereby driving the pulley 10 fixedly sleeved on the rotating rod 8 to rotate. The belt 33 drives another set of pulleys 10 fixedly sleeved on the rotating rod 24 to rotate, thereby rotating the rotating rod 24. This, in turn, rotates the pulley 23 fixedly connected to the rotating rod 24, causing the pulley 23 to move on the first pulley groove 4 on the bottom side of the inner surface of the I-beam 3. During the sliding of the pulley 23, since the bottom of the mounting plate 3 16 is fixedly connected to several fixed blocks 17, and the rotating rod 2 18 is rotatably inserted through the several fixed blocks 17, the pulley 19 fixedly connected to one end of the rotating rod 2 18 moves on the second pulley groove 5 on the top side of the inner surface of the I-beam 3, thereby realizing the back-and-forth sliding of the bearing frame 2 on the I-beams 3 on both sides.
[0035] During the process of the drive motor 6 driving the rotating rod 8, thereby driving the two sets of pulleys 10 through the belt 33, the belt 33 is prone to loosening and slipping, causing the pulley 23 to spin freely. To prevent the pulley 23 from spinning freely, the rotating wheel 31 abuts against the outer surface of the belt 33, and the rotating wheel 31 is pressed against the belt 33 by the spring 26 to prevent the belt 33 from loosening.
[0036] Furthermore, to further prevent the pulley 23 from spinning freely when moving back and forth on the motion platform 1, the electric push rod 20 pushes the fixed plate 34. Since the fixed plate 35 slides on the fixed plate 34 via the sliding rod 36 and is limited by the limiting plate 37 to prevent it from disengaging, the outer surface of the rotating wheel 22 abuts against the outer surface of the belt 33, and then the connecting plate 21 pushes the fixed plate 35. A pressure sensor 38 is set between the fixed plate 24 and the fixed plate 35 to detect the tension pressure of the belt 33, thereby adjusting the thrust of the electric push rod 20.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An anti-swing device for a motion platform, comprising a motion platform (1), characterized in that: The bottom of the dynamic platform (1) is fixedly installed with a bearing frame (2). I-beams (3) are provided on both the left and right sides of the bearing frame (2). Mounting plate (9) is fixedly connected to both the left and right sides of the bearing frame (2). A sliding component is installed between the mounting plate (9) and the I-beams (3). A drive component is installed inside the bearing frame (2). An anti-dry rotation component is also installed on the mounting plate (9). The sliding assembly includes mounting plate five (32) and mounting plate three (16). Mounting plate five (32) and mounting plate three (16) are both fixedly mounted on mounting plate one (9). A rotating rod three (24) is rotatably passed through the bottom of mounting plate five (32). A pulley two (23) is fixedly connected to the end of the rotating rod three (24) away from mounting plate five (32). Several fixing blocks (17) are fixedly connected to the bottom of mounting plate three (16). A rotating rod two (18) is rotatably passed through the fixing block (17). A pulley one (19) is fixedly connected to the end of the rotating rod two (18) away from the fixing block (17). A second pulley groove (5) and a first pulley groove (4) are respectively opened on the top and bottom sides of the I-beam (3). The pulley two (23) is slidably connected to the first pulley groove (4), and the pulley one (19) is slidably connected to the second pulley groove (5).
2. The anti-swing device of a motion platform according to claim 1, characterized in that: The drive assembly includes a drive motor (6), which is fixedly installed on the inner bottom side of the support frame (2). The output shaft end of the drive motor (6) is fixedly connected to a rotating rod (8). Two sets of bearing seats (7) are sleeved on the rotating rod (8). Both sets of bearing seats (7) are fixedly installed on the inner bottom side of the support frame (2). Pulleys (10) are fixedly sleeved on the side of the rotating rod (8) away from the drive motor (6) and on the rotating rod (34). A belt (33) is tensioned between the two sets of pulleys (10).
3. The anti-swing device of a motion platform according to claim 1, characterized in that: The anti-idling component includes a second mounting plate (15), which is fixedly mounted on a first mounting plate (9). A fourth mounting plate (25) is fixedly connected to the top of the second mounting plate (15). A first sliding rod (27) is slidably passed through the fourth mounting plate (25). A first limiting plate (28) is fixedly connected to the top side of the first sliding rod (27). A first fixing plate (29) is fixedly connected to the bottom side of the first sliding rod (27). A spring (26) is sleeved on the first sliding rod (27). The top and bottom sides of the spring (26) abut against the bottom side of the fourth mounting plate (25) and the top side of the first fixing plate (29), respectively. A second connecting plate (30) is fixedly connected to the bottom left and right sides of the first fixing plate (29). A second rotating wheel (31) is rotatably mounted between the two sets of second connecting plates (30). The bottom side of the second rotating wheel (31) abuts against the outer surface of the belt (33).
4. The anti-swing device of a motion platform according to claim 2, characterized in that: The left and right outer surfaces of the pulley (10) are fixedly connected with blocks (11), and the outer surface of the pulley (10) is fitted with two sets of baffles (13). The blocks (11) are provided with grooves (12). The side of the baffle (13) near the blocks (11) is fixedly connected with a slider (14), and the slider (14) is slidably connected to the groove (12).
5. The anti-swing device of a motion platform according to claim 1, characterized in that: The load-bearing frame (2) is made of high-strength steel.
6. The anti-swing device of a motion platform according to claim 2, characterized in that: An electric push rod (20) is fixedly installed on the side of the mounting plate 1 (9) away from the drive motor (6). The output shaft end of the electric push rod (20) is fixedly connected to a fixing plate 2 (34). A fixing plate 3 (35) is provided on the rear side of the fixing plate 2 (34). A sliding rod 2 (36) is fixedly connected to each of the four corners of the front side of the fixing plate 3 (35). The front end of the sliding rod 2 (36) passes through the fixing plate 2 (34) and is fixedly connected to a limit plate 2 (37). A pressure sensor (38) is provided between the fixing plate 2 (34) and the fixing plate 3 (35). A connecting plate 1 (21) is fixedly connected to the left and right sides of the rear part of the fixing plate 3 (35). A rotating wheel 1 (22) is rotatably installed between the two sets of connecting plates 1 (21). The outer surface of the rotating wheel 1 (22) abuts against the outer surface of the belt (33).