Multi-scale bionic torque limiter meshing structure

Abstract

The utility model relates to the technical field of torque limiters, in particular to a multi-scale bionic torque limiter meshing structure which comprises a driving end. The driven end is connected to one side of the driving end; and the number of the connecting shafts is two, and the connecting shafts are fixedly installed on the outer side of the driving end and the outer side of the driven end. The large-scale meshing teeth are formed in the connecting shaft, the small-scale meshing teeth are formed between the large-scale meshing teeth in each group, the size of the small-scale meshing teeth is smaller than that of the large-scale meshing teeth, multi-scale design is adopted, meshing structures, with different scale characteristics, of some organisms in the nature are simulated, and therefore the size of the large-scale meshing teeth is reduced. The large-scale meshing teeth can provide main torque transmission capacity, it is ensured that large torque can be stably transmitted under the normal working condition, the small-scale meshing teeth are distributed among the large-scale meshing teeth and participate in work when the torque is small, and the torque transmission precision and stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of torque limiter technology, specifically a multi-scale biomimetic torque limiter meshing structure. Background Technology

[0002] In mechanical transmission systems, torque limiters are crucial protective devices, serving as the connection between the driving and driven machines. Their primary function is overload protection. When overload or mechanical failure causes the required torque to exceed a set value, the torque limiter restricts the torque transmitted by the transmission system through slippage. It automatically reconnects once the overload condition disappears. This prevents mechanical damage and avoids costly downtime losses. While primarily used to prevent overload situations and protect mechanical components from damage, existing torque limiters have several shortcomings. Regarding torque transmission accuracy, manufacturing and assembly gaps in the meshing structure can introduce lag and errors. Long-term wear further exacerbates the decrease in accuracy. Furthermore, sudden torque changes during overload can cause impacts and vibrations, damaging the meshing structure. Therefore, we propose a multi-scale biomimetic torque limiter meshing structure to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a multi-scale biomimetic torque limiter meshing structure to solve the problems mentioned in the background art, such as hysteresis and errors caused by manufacturing and assembly gaps in the meshing structure, and impacts and vibrations caused by sudden changes in torque, which damage the meshing structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-scale biomimetic torque limiter engagement structure, comprising:

[0005] Active end;

[0006] The driven end is connected to one side of the driving end;

[0007] A connecting shaft, wherein two sets of connecting shafts are provided, and the connecting shafts are fixedly installed on the outside of the driving end and the driven end;

[0008] A meshing assembly, wherein the meshing assembly is disposed on the inner wall of the connecting shaft;

[0009] A buffer assembly is disposed inside the engagement assembly.

[0010] Preferably, the meshing assembly includes large-scale meshing teeth, which are formed on the inner wall of the connecting shaft. The large-scale meshing teeth are formed in four groups: up, down, left, and right. The inner wall of the connecting shaft is formed with small-scale meshing teeth, and multiple groups of small-scale meshing teeth are evenly distributed between each group of large-scale meshing teeth. This reduces the lag and error caused by the gap between the structure and the assembly, making the connection tighter.

[0011] Preferably, the size of the small-scale meshing teeth is smaller than that of the large-scale meshing teeth, so that the large-scale meshing teeth and the small-scale meshing teeth can each perform their respective functions.

[0012] Preferably, the buffer assembly includes a movable groove, which is provided on the left and right sides of the large-scale meshing tooth. A buffer plate is provided on both sides of the large-scale meshing tooth, and a slider is fixedly installed on one side of each buffer plate. The slider is inserted into the movable groove and slidably connected to it. A spring is fixedly installed on one side of the slider, and multiple sets of springs are evenly arranged. The other end of the spring is fixedly installed on the inner wall of the movable groove. A limit block is fixedly installed at the bottom of the buffer plate, and two sets of limit blocks are provided. A limit groove is provided at the bottom of the large-scale meshing tooth, and two sets of limit grooves are provided. The limit block is embedded in the limit groove and slidably connected to it, thus providing a buffering function.

[0013] Preferably, the front side of the buffer plate is set as an inclined surface, which improves the convenience of connection.

[0014] Preferably, rubber pads are fixedly attached to both the upper and lower sides of the slider, and the rubber pads are tightly attached to the inner walls of the upper and lower sides of the moving groove, which increases the friction on the upper and lower sides of the slider and can slow down the movement speed of the buffer plate.

[0015] Compared with the prior art, the technical effects and advantages of this utility model are as follows: This utility model;

[0016] By incorporating large-scale meshing teeth within the connecting shaft, and small-scale meshing teeth between each set of large-scale meshing teeth, and considering that the size of the small-scale meshing teeth is smaller than that of the large-scale meshing teeth, a multi-scale design is adopted. This mimics the biting structure with different scale characteristics of certain organisms in nature. The large-scale meshing teeth provide the main torque transmission capability, ensuring the stable transmission of large torques under normal operating conditions. The small-scale meshing teeth are distributed between the large-scale meshing teeth and participate in the work when the torque is low, improving the accuracy and stability of torque transmission. At the same time, it increases the meshing contact area and reduces wear.

[0017] By setting buffer plates on both sides of the large-scale meshing teeth, and inserting sliders into the moving slots, with a spring fixedly installed on one side of the slider and rubber pads fixedly installed on both the upper and lower sides of the slider, this structure mimics the elastic buffering mechanism in biological joints, which can play a buffering role when the torque changes suddenly. Through the buffering of springs and rubber pads, the damage to the meshing structure caused by impact and vibration is reduced. Attached image description:

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the back of the three-dimensional structure of this utility model;

[0021] Figure 3 This is a three-dimensional cross-sectional view of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the buffer component of this utility model.

[0023] In the diagram: 1. Driving end; 2. Driven end; 3. Connecting shaft; 4. Large-scale meshing teeth; 5. Small-scale meshing teeth; 6. Moving groove; 7. Limiting groove; 8. Buffer plate; 9. Limiting block; 10. Slider; 11. Spring. Detailed implementation method:

[0024] 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.

[0025] Example 1

[0026] like Figures 1 to 3 As shown, the present invention provides a multi-scale biomimetic torque limiter engagement structure, comprising:

[0027] Active terminal 1;

[0028] Driven end 2 is connected to one side of the driving end 1;

[0029] Connecting shaft 3, two sets of connecting shaft 3 are provided, and connecting shaft 3 is fixedly installed on the outside of the driving end 1 and the driven end 2;

[0030] The meshing assembly is located on the inner wall of the connecting shaft 3. The meshing assembly includes large-scale meshing teeth 4, which are formed on the inner wall of the connecting shaft 3. There are four groups of large-scale meshing teeth 4 arranged in four directions (up, down, left, and right). Small-scale meshing teeth 5 are formed on the inner wall of the connecting shaft 3, and there are multiple groups of small-scale meshing teeth 5, which are evenly distributed between each group of large-scale meshing teeth 4. The size of the small-scale meshing teeth 5 is smaller than that of the large-scale meshing teeth 4. This design imitates the biting structure with different scale characteristics of some organisms in nature. The large-scale meshing teeth 4 mainly transmit larger torques. The small-scale meshing teeth 5 participate in the work when the torque is smaller, improving the accuracy and stability of torque transmission, while increasing the meshing contact area.

[0031] Example 2

[0032] like Figures 3 to 4 As shown, based on the same concept as the above embodiment, this embodiment also proposes: a buffer assembly, which is disposed inside the meshing assembly. The buffer assembly includes a moving groove 6, which is opened on the left and right sides of the large-scale meshing teeth 4. Buffer plates 8 are provided on both the left and right sides of the large-scale meshing teeth 4. A slider 10 is fixedly installed on one side of the buffer plate 8 and is inserted into the moving groove 6 and slidably connected to the moving groove 6. A spring 11 is fixedly installed on one side of the slider 10 and multiple sets of springs 11 are evenly arranged. The other end of the spring 11 is fixedly installed on the inner wall of the moving groove 6. A limiting block 9 is fixedly installed at the bottom of the buffer plate 8 and two sets of limiting blocks 9 are provided. A limiting groove 7 is opened at the bottom of the large-scale meshing teeth 4 and two sets of limiting grooves 7 are provided. The limiting block 9 is embedded in the limiting groove 7 and slidably connected to the limiting groove 7, which helps to reduce the damage to the structure caused by impact and vibration.

[0033] The front side of the buffer plate 8 is set as an inclined surface, which makes it easier for the motor to be inserted into one side of the connecting shaft 3.

[0034] Rubber pads are fixedly attached to both the upper and lower sides of the slider 10, and the rubber pads are tightly attached to the inner walls of the upper and lower sides of the moving groove 6. The rubber pads are made of natural rubber, but synthetic rubber is generally used. Synthetic rubber is a rubber material manufactured through chemical synthesis and has properties similar to natural rubber. Synthetic rubber can be formulated according to different needs to obtain specific physical and chemical properties, and has the characteristics of sealing, anti-slip, wear resistance and elasticity. This design utilizes the anti-slip properties of rubber to increase the friction between the slider 10 and the inner wall of the moving groove 6, thereby improving the buffering effect.

[0035] Working principle: In actual use, when the torque limiter is working normally, the connecting rod on the external motor matches the large-scale meshing teeth 4 and small-scale meshing teeth 5 on the inner wall of the connecting shaft 3. When the torque is large, the motor can stably transmit a large torque through the large-scale meshing teeth 4. When the torque is small, it can also transmit torque through the small-scale meshing teeth 5. When the torque is overloaded, vibration will be generated. The vibration will be transmitted to the buffer plate 8. The buffer plate 8 will move inward and drive the slider 10 to move inward. The rubber pads on the upper and lower sides of the slider 10 will rub against the inner wall of the moving groove 6. At the same time, the slider 10 will squeeze the spring 11. The spring 11 will buffer the movement. The limiting block 9 will also slide in the limiting groove 7, thereby achieving buffering. The above is the complete working principle of this utility model.

[0036] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0037] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0038] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-scale biomimetic torque limiter engagement structure, comprising: Active end (1); Its features are: Driven end (2), the driven end (2) is connected to one side of the active end (1); Connecting shaft (3), two sets of connecting shaft (3) are provided, and the connecting shaft (3) is fixedly installed on the outside of the active end (1) and the driven end (2); A meshing assembly, wherein the meshing assembly is disposed on the inner wall of the connecting shaft (3); A buffer assembly is disposed inside the engagement assembly.

2. The multi-scale biomimetic torque limiter engagement structure according to claim 1, characterized in that: The meshing assembly includes large-scale meshing teeth (4), which are formed on the inner wall of the connecting shaft (3). The large-scale meshing teeth (4) are formed in four groups: up, down, left, and right. The inner wall of the connecting shaft (3) is formed with small-scale meshing teeth (5), and there are multiple groups of small-scale meshing teeth (5) which are evenly distributed between each group of large-scale meshing teeth (4).

3. The multi-scale biomimetic torque limiter engagement structure according to claim 2, characterized in that: The size of the small-scale meshing tooth (5) is smaller than the size of the large-scale meshing tooth (4).

4. The multi-scale biomimetic torque limiter engagement structure according to claim 1, characterized in that: The buffer assembly includes a moving groove (6), which is provided on the left and right sides of the large-scale meshing teeth (4). Buffer plates (8) are provided on both sides of the large-scale meshing teeth (4), and a slider (10) is fixedly installed on one side of the buffer plate (8). The slider (10) is inserted into the moving groove (6) and slidably connected to the moving groove (6). A spring (11) is fixedly installed on one side of the slider (10), and multiple sets of springs (11) are evenly arranged. The other end of the spring (11) is fixedly installed on the inner wall of the moving groove (6). A limiting block (9) is fixedly installed at the bottom of the buffer plate (8), and two sets of limiting blocks (9) are provided. A limiting groove (7) is opened at the bottom of the large-scale meshing teeth (4), and two sets of limiting grooves (7) are provided. The limiting block (9) is embedded in the limiting groove (7) and slidably connected to the limiting groove (7).

5. The multi-scale biomimetic torque limiter engagement structure according to claim 4, characterized in that: The front side of the buffer plate (8) is set as an inclined surface.

6. The multi-scale biomimetic torque limiter engagement structure according to claim 4, characterized in that: Rubber pads are fixedly attached to both the upper and lower sides of the slider (10), and the rubber pads are tightly attached to the inner walls of the upper and lower sides of the moving groove (6).

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