Hoisting flywheel transmission structure

Abstract

The utility model discloses hoist flywheel transmission structure, including the frame with the main space of being safe, set up on the drive mechanism of frame and set up on the transmission wheel group of frame and drive through the drive mechanism, transmission wheel group includes drive wheel and three pressure wheels, and three pressure wheels are compacted on drive wheel with a rope for lifting and make the rope be driven by drive wheel, and the pressure wheel is first pressure wheel, second pressure wheel and third pressure wheel respectively, wherein the third pressure wheel is slidably arranged on the frame, and the third frame is provided with an elastic supporting mechanism to exert a spring force on the third pressure wheel, so that the third pressure wheel has a tendency to slide towards the drive wheel, and the frame is also threadedly connected with a lockable eccentric wheel, the third pressure wheel has a wheel carrier with a boss, and after the eccentric wheel rotates and is locked, the side wall abuts against the boss to limit the boss, thereby limiting the third pressure wheel. The present application provides certain floating adjustment through the elastic supporting mechanism, and the eccentric wheel limits it, which can avoid the third pressure wheel from directly sliding to the maximum distance state with the drive wheel when the elastic support fails, thereby avoiding danger.

Description

Technical Field

[0001] This utility model relates to lifting devices, and more particularly to a hoisting flywheel transmission structure. Background Technology

[0002] In scenarios such as power maintenance, it is necessary to hoist personnel, tools, or goods to high places. Among transmission equipment, lifting hoists and cable lifting devices are widely used. However, these two devices have the disadvantages of being heavy and inconvenient to carry. To facilitate carrying, electric flywheels with ropes are used as a substitute, achieving the desired effect.

[0003] The electric flywheel compresses the rope through a drive wheel and a pressure wheel. When the drive wheel rotates, the rope is driven. This structure relies on friction to move the rope, and pressure is the main factor that generates friction. Therefore, adjusting the pressure plays a crucial role. For example, when the mass of the object changes, the pressure must be adjusted before lifting operations can be carried out. Patent application number 2021103930731 discloses an electric lifter with a top-supporting device, which mainly supports the pressure wheel through an elastic support mechanism, thereby allowing the pressure of the pressure wheel to be adjusted by floating. However, this method has certain drawbacks. Because it is greatly affected by the spring structure, it does not have a rigid support structure for emergency limiting. If the spring force is insufficient or damaged, the pressure wheel will lose pressure, posing a certain safety risk. Utility Model Content

[0004] Based on the shortcomings of existing technologies that use springs to support the pressure roller, which lack rigid support and limit when the support force is insufficient or the spring is damaged, thus posing certain safety risks, this utility model provides a hoisting flywheel transmission structure.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] The hoisting flywheel drive structure includes a frame with a mounting space, a drive mechanism mounted on the frame, and a transmission wheel assembly mounted on the frame and driven by the drive mechanism. The transmission wheel assembly includes a drive wheel and three pressure wheels. The three pressure wheels press a hoisting rope onto the drive wheel, causing the rope to be driven by the drive wheel. The pressure wheels are a first pressure wheel, a second pressure wheel, and a third pressure wheel. The third pressure wheel is slidably mounted on the frame, and the frame is provided with an elastic support mechanism that applies elastic force to the third pressure wheel, causing it to tend to slide towards the drive wheel. The frame is also threaded with a lockable eccentric wheel. The third pressure wheel has a wheel frame with a boss. After the eccentric wheel rotates and locks, its side wall abuts against the boss, limiting the boss and thus limiting the third pressure wheel.

[0007] Preferably, the frame includes two spaced-apart frame plates and a fixing screw that passes through the two frame plates and fixes and supports them. Three nuts are provided on the fixing screw to clamp and fix the frame plates.

[0008] Preferably, the frame is provided with a third sliding hole, the wheel frame of the third pressure roller is slidably disposed in the third sliding hole and extends out of the third sliding hole, and the mounting space of the frame is provided with a mounting plate, an adjusting bolt on the mounting plate, a pressure plate at the inner end of the adjusting bolt, and a spring spring on the pressure plate that abuts against the wheel frame of the third pressure roller. When the adjusting bolt is rotated, the spring force applied by the pressure spring to the wheel frame is adjusted.

[0009] Preferably, the wheel frame of the third pressure roller has a flat-bottomed U-shaped structure, with its two sides abutting against the machine frame, and a boss set on one side.

[0010] Preferably, the frame is provided with a mounting plate with stepped holes, the eccentric wheel is attached to the mounting plate and locked by locking bolts and nuts, the nuts being embedded in the stepped holes of the mounting plate.

[0011] Preferably, the first pressure roller and the second pressure roller are slidably mounted on the frame and locked in place by locking components, and the distance between the first pressure roller and the drive wheel is adjusted when the first pressure roller and the second pressure roller slide.

[0012] Preferably, both the first and second pressure rollers include a shaft and a wheel body rotatably mounted on the shaft. The frame is provided with a slot, through which the shaft passes and is locked by a nut.

[0013] Preferably, the three pressure rollers are arranged in an isosceles triangle around the drive wheel, and the first and second pressure rollers are symmetrical about the drive wheel.

[0014] Preferably, the drive mechanism includes a drive motor, a transmission gear, and a reducer. The drive motor is connected to the input end of the reducer through the transmission gear, and the output end of the reducer is fixedly connected to the drive wheel to drive the drive wheel to rotate.

[0015] Compared with the prior art, the advantages of this utility model are: This application provides a certain floating adjustment through the elastic support mechanism, while the eccentric wheel limits it. When the elastic support fails, it can prevent the third pressure wheel from sliding directly to the maximum distance state with the drive wheel, thus avoiding danger. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is the front view of this application;

[0018] Figure 2 This is a perspective view of the present application;

[0019] Figure 3 This is a perspective view of the present application;

[0020] Figure 4 This is an exploded view of this application;

[0021] In the diagram: 10, frame; 101, sliding hole; 102, slot; 103, mounting plate; 20, drive mechanism; 201, drive motor; 202, reducer; 300, drive wheel; 301, first pressure roller; 302, second pressure roller; 303, third pressure roller; 3031, wheel frame; 30311, boss; 40, eccentric wheel; 401, locking bolt; 501, adjusting bolt; 502, pressure plate; 503, spring. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0023] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0024] This embodiment mainly describes the title of the portable unmanned aerial vehicle (UAV) take-off and landing platform, as follows:

[0025] See attached document Figures 1-4The hoisting flywheel drive structure includes a frame 10 with a mounting space, a drive mechanism 20 mounted on the frame 10, and a transmission wheel assembly mounted on the frame 10 and driven by the drive mechanism 20. The transmission wheel assembly includes a drive wheel 300 and three pressure wheels. The three pressure wheels press a hoisting rope against the drive wheel 300, causing the rope to be driven by the drive wheel 300. The pressure wheels are a first pressure wheel 301, a second pressure wheel 302, and a third pressure wheel 303. The third pressure roller 303 is slidably mounted on the frame 10, and the frame 10 is equipped with an elastic support mechanism that applies elastic force to the third pressure roller 303, causing the third pressure roller 303 to tend to slide towards the drive wheel 300. The frame 10 is also threadedly connected to a lockable eccentric wheel 40. The third pressure roller 303 has a wheel frame 3031 with a boss 30311. After the eccentric wheel 40 rotates and locks, its sidewall abuts against the boss 30311, limiting the boss 30311 and thus limiting the third pressure roller 303. This design provides a certain degree of floating adjustment through the elastic support mechanism, while the eccentric wheel 40 limits its movement. When the elastic support fails, it prevents the third pressure roller 303 from sliding directly to the maximum distance from the drive wheel 300, thus avoiding danger.

[0026] Preferably, the frame 10 includes two spaced-apart frame plates and a fixing screw that passes through the two frame plates and fixes and supports them. Three nuts are provided on the fixing screw to clamp and fix the frame plates.

[0027] Preferably, the frame 10 is provided with a sliding hole 101, the wheel frame 3031 of the third pressure roller 303 is slidably disposed in the sliding hole 101 and extends out of the sliding hole 101, the mounting space of the frame 10 is provided with a mounting plate 103, the mounting plate 103 is provided with an adjusting bolt 501, the inner end of the adjusting bolt 501 is provided with a pressure plate 502, the pressure plate 502 is provided with a spring spring 503 that abuts against the wheel frame 3031 of the third pressure roller 303, and when the adjusting bolt 501 is rotated, the spring force applied by the spring spring 503 to the wheel frame 3031 is adjusted.

[0028] Preferably, the wheel frame 3031 of the third pressure roller 303 has a flat-bottomed U-shaped structure, with its two sides abutting against the frame 10, and a boss 30311 is provided on one side. The fact that its two sides abut against the frame 10 can prevent shaking, and there is no need to provide a sliding groove.

[0029] Preferably, the frame 10 is provided with a mounting plate 103 with stepped holes. The eccentric wheel 40 is attached to the mounting plate 103 and locked in place by a locking bolt 401 and a nut. The nut is embedded in the stepped hole of the mounting plate 103. After the nut is embedded, the eccentric wheel 40 can be pressed and fixed by directly turning the external locking bolt 401.

[0030] Preferably, the first pressure roller 301 and the second pressure roller 302 are slidably mounted on the frame 10 and fixed by locking components. The distance between the first pressure roller 301 and the second pressure roller 302 and the drive wheel 300 is adjusted during sliding. Preferably, both the first pressure roller 301 and the second pressure roller 302 include a shaft and a wheel body rotatably mounted on the shaft. The frame 10 has a slot 102 through which the shaft passes and is locked by a nut. This design provides adjustment for the distance between the two pressure rollers. When the weight of the object being lifted increases, the rollers are adjusted inward to increase pressure and improve load-bearing capacity; conversely, they are adjusted outward to reduce wear.

[0031] Preferably, the three pressure rollers are arranged in an isosceles triangle around the drive wheel 300, with the first pressure roller 301 and the second pressure roller 302 being symmetrical about the drive wheel 300. This arrangement ensures that multiple parts of the rope are compressed. In addition, the symmetrical structure of the first pressure roller 301 and the second pressure roller 302 ensures that the pressure on both sides is the same, thus canceling each other out and preventing the drive wheel 300 from being subjected to unidirectional force, which would increase the wear on its axle.

[0032] Preferably, the drive mechanism 20 includes a drive motor 201, a transmission gear and a reducer 202. The drive motor 201 is connected to the input end of the reducer 202 through the transmission gear, and the output end of the reducer 202 is fixedly connected to the drive wheel 300 to drive the drive wheel 300 to rotate.

[0033] It should be noted that the main pressure in this application is provided by the third pressure roller 303, so the eccentric wheel 40 is only set at the third pressure roller 303 for limiting.

[0034] The title of the hoisting flywheel transmission structure provided by this utility model has been described in detail above. Specific examples have been used in this article to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A hoisting flywheel drive structure, comprising a frame with a mounting space, a drive mechanism mounted on the frame, and a transmission wheel assembly mounted on the frame and driven by the drive mechanism, the transmission wheel assembly comprising a drive wheel and three pressure wheels, the three pressure wheels pressing a hoisting rope against the drive wheel so that the rope is driven by the drive wheel, characterized in that, The pressure rollers are a first pressure roller, a second pressure roller, and a third pressure roller. The third pressure roller is slidably mounted on the frame, and the frame is equipped with an elastic support mechanism that applies elastic force to the third pressure roller, causing it to tend to slide towards the drive wheel. The frame is also threadedly connected to a lockable eccentric wheel. The third pressure roller has a wheel frame with a boss. After the eccentric wheel rotates and locks, its side wall abuts against the boss to limit the boss, thereby limiting the third pressure roller.

2. The hoisting flywheel transmission structure according to claim 1, characterized in that, The frame includes two spaced-apart frame plates and a fixing screw that passes through the two frame plates and fixes and supports them. Three nuts are installed on the fixing screw to clamp and fix the frame plates.

3. The hoisting flywheel transmission structure according to claim 1, characterized in that, The frame is provided with a third sliding hole. The wheel frame of the third pressure roller is slidably set in the third sliding hole and extends out of the third sliding hole. The mounting space of the frame is provided with a mounting plate. The mounting plate has an adjusting bolt. The inner end of the adjusting bolt is provided with a pressure plate. The pressure plate is provided with a spring spring that abuts against the wheel frame of the third pressure roller. When the adjusting bolt is rotated, the spring force applied by the pressure spring to the wheel frame is adjusted.

4. The hoisting flywheel transmission structure according to claim 1, characterized in that, The wheel frame of the third pressure roller has a flat-bottomed U-shaped structure, with its two sides attached to the machine frame and a boss on one side.

5. The hoisting flywheel transmission structure according to claim 1, characterized in that, The frame is equipped with a mounting plate with stepped holes. The eccentric wheel is attached to the mounting plate and locked in place by locking bolts and nuts. The nuts are embedded in the stepped holes of the mounting plate.

6. The hoisting flywheel transmission structure according to claim 1, characterized in that, The first and second pressure rollers are slidably mounted on the frame and fixed by locking components. The distance between the first and second pressure rollers and the drive wheel is adjusted when the first and second pressure rollers slide.

7. The hoisting flywheel transmission structure according to claim 6, characterized in that, Both the first and second pressure rollers include a shaft and a wheel body rotatably mounted on the shaft. The frame is provided with a slot, through which the shaft passes and is locked by a nut.

8. The hoisting flywheel transmission structure according to claim 1, characterized in that, The three pressure rollers are arranged in an isosceles triangle around the drive wheel, and the first and second pressure rollers are symmetrical about the drive wheel.

9. The hoisting flywheel transmission structure according to claim 1, characterized in that, The drive mechanism includes a drive motor, transmission gears, and a reducer. The drive motor is connected to the input end of the reducer through the transmission gears, and the output end of the reducer is fixedly connected to the drive wheel to drive the drive wheel to rotate.

Images