阅读说明：本技术 一种新型智能齿轮 (Novel intelligent gear ) 是由 王家序 陈守安 韩彦峰 李俊阳 肖科 向果 唐东兴 蒲伟 周广武 周青华 于 2020-06-11 设计创作，主要内容包括：本发明公开了一种新型智能齿轮,包括固定盘和多个周向均布的齿轮模块,每一所述齿轮模块均与固定盘固定连接,使各齿轮模块的外缘拼接形成一个完整的轮缘,在相邻齿轮模块的接缝处布置有调节体,所述调节体采用可变刚度柔性材料,还包括：传感器模块,所述传感器模块用于直接感受测量齿轮的啮合状态参数并发送到智能控制系统；智能控制系统,所述智能控制系统对传感器模块发送来的参数进行处理,并根据处理得出的优化指令控制调节体的可变刚度柔性材料进行刚柔和形变转换。从而提供了一种新型智能齿轮,集齿轮啮合性能实时监测与齿轮啮合性能动态调整为一体,实现齿轮本身从啮合性能监测到啮合性能调整的闭环。(The invention discloses a novel intelligent gear, which comprises a fixed disk and a plurality of gear modules which are uniformly distributed in the circumferential direction, wherein each gear module is fixedly connected with the fixed disk, the outer edges of the gear modules are spliced to form a complete wheel rim, an adjusting body is arranged at the joint of the adjacent gear modules, the adjusting body is made of a variable-rigidity flexible material, and the novel intelligent gear further comprises: the sensor module is used for directly sensing the meshing state parameters of the measuring gear and sending the parameters to the intelligent control system; and the intelligent control system processes the parameters sent by the sensor module and controls the variable-rigidity flexible material of the adjusting body to perform rigidity-flexibility and deformation conversion according to the processed optimization instruction. Therefore, the novel intelligent gear is provided, the real-time monitoring of the meshing performance of the gear and the dynamic adjustment of the meshing performance of the gear are integrated, and the closed loop of the gear which is adjusted in the meshing performance from the meshing performance monitoring is realized.)

1. The utility model provides a novel intelligent gear, includes the gear module of fixed disk and a plurality of circumference equipartitions, each gear module all with fixed disk fixed connection, make the outer fringe concatenation of each gear module form a complete rim, arranged the regulating body in the seam crossing of adjacent gear module, the regulating body adopts variable rigidity flexible material, still includes:

the sensor module is used for directly sensing the meshing state parameters of the measuring gear and sending the parameters to the intelligent control system;

and the intelligent control system processes the parameters sent by the sensor module and controls the variable-rigidity flexible material of the adjusting body to perform rigidity-flexibility and deformation conversion according to the processed optimization instruction.

2. The novel intelligent gear according to claim 1, wherein: the number of the gear modules is even.

3. The novel intelligent gear according to claim 2, wherein: the sensor module includes an accelerometer, a pressure sensor, a stress sensor, an angle sensor, a position sensor, a vibration detection sensor, and a temperature sensor.

4. The novel intelligent gear of claim 3, wherein: the sensor module comprises an A sensor group and a B sensor group, wherein the A sensor group comprises an angle sensor, a pressure sensor, a stress sensor and a temperature sensor, the B sensor group comprises an accelerometer, a pressure sensor, a stress sensor and a position sensor, the number of the A sensor group and the B sensor group is one half of the number of joints of the gear module, and the A sensor group and the B sensor group are arranged at intervals at each joint; the vibration detection sensor is installed at the top of the key groove of the fixed disc shaft hole.

5. The novel intelligent gear according to claim 1, wherein: the radial side surface of each gear module is provided with a semicircular groove, the grooves of the adjacent gear modules form a circular mounting hole, and the adjusting body is positioned in the circular mounting hole.

6. The novel intelligent gear according to claim 1, wherein: the fixed disk is a circular block with a shaft hole, one end face of the fixed disk protrudes to form an annular shaft sleeve part, the gear modules are fan-shaped, the same end face of each gear module is sunken to form a fan-shaped recess, the fan-shaped recesses of the gear modules form a circular recess for the fixed disk to be embedded in, and the inner edge of each gear module is positioned through the peripheral side face of the shaft sleeve part of the fixed disk; each gear module is provided with a first mounting hole, the fixed disc is provided with second mounting holes corresponding to the first mounting holes one to one, and the gear modules and the fixed disc are fixedly connected through bolts penetrating through the first mounting holes and the corresponding second mounting holes.

7. The novel intelligent gear of claim 6, wherein: a rubber alloy layer is padded between the fixed disc and the fan-shaped contact surface of the gear module, and a rubber alloy sleeve is padded between the shaft sleeve part of the fixed disc and the inner edge of the gear module.

8. The novel intelligent gear according to claim 6 or 7, characterized in that: the intelligent control system comprises:

the data acquisition module is used for acquiring data of each sensor in the sensor module;

the communication module is used for communicating with the server, transmitting the data acquired by the data acquisition module to the server and acquiring an optimization instruction from the server;

the server is used for storing, analyzing and displaying the data and feeding back an optimization instruction obtained by analysis and calculation to the communication module;

the controller is used for controlling the variable-rigidity flexible material to perform rigidity-flexibility and deformation conversion according to the optimization instruction acquired by the communication module;

and the power supply module is used for providing power supply.

9. The novel intelligent gear of claim 8, wherein: the end face, facing the gear module, of the fixed disc is provided with four mounting grooves, and the data acquisition module, the communication module, the controller and the power supply module are arranged in the four mounting grooves respectively.

10. The novel intelligent gear of claim 9, wherein: the number of the gear modules is four.

Technical Field

The invention belongs to the technical field of gears, and particularly relates to a novel intelligent gear.

Background

At present, gears are widely used in various equipments as basic parts in mechanical transmission devices. With the development of the technology, various devices have higher and higher requirements on transmission precision, reliability, service life, vibration reduction, noise reduction and the like of the gear. The gear meshing performance detection method has the advantages that the quality of the gear can be objectively and correctly evaluated on one hand, and the gear can be optimally designed by utilizing the obtained meshing performance parameters on the other hand.

The traditional gear meshing performance detection is generally carried out before installation through a test platform. With the progress of sensor technology, more and more research teams propose to carry out real-time monitoring on working condition parameters of the gears in use, but the schemes are all stopped at the gear monitoring in the aspect of real-time research; in the case of gears per se, these studies are open-loop and fail to adjust the gear itself in real time to form a closed loop based on the monitoring results. The problems of large vibration, poor stress deformation working condition, high temperature and the like of the gear in actual use cannot be adjusted and solved in real time through the gear.

Patent document CN103438183A discloses an intelligent gear, wherein a gear tooth groove and a gear groove are arranged at the bottom between a gear tooth and two teeth, elastic bodies are filled in the gear tooth groove and the gear groove, and a monitoring device is arranged in the elastic bodies, so that on one hand, the working state of the gear is monitored in real time by using the monitoring device, and real-time parameters reflecting the working conditions of the gear, such as torque, rotating speed, stress, strain, acceleration, temperature, and the like, are obtained; on the other hand, the gear tooth grooves, the gear grooves and the elastic bodies are utilized to enable the gear teeth to have elasticity and self-adaptive deformation coordination capacity, so that the high-precision and high-reliability intelligent gear is provided. Although the performance of the gear can be dynamically adjusted by the elastomer material provided in the technical scheme, the rigidity and flexibility of the elastomer cannot be adjusted in real time according to a monitoring result by only utilizing the adaptive deformation coordination capability of the elastomer, and a closed loop for adjusting the performance of the gear from real-time monitoring is not really realized. Moreover, the gear tooth groove and the gear groove of the intelligent gear are troublesome to machine, the machining precision requirement is high, and the manufacturing cost is high.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a novel intelligent gear with a simple structure, which integrates the real-time monitoring of the meshing performance of the gear and the dynamic adjustment of the meshing performance of the gear into a whole and realizes the closed loop of the gear which is monitored from the meshing performance to the adjustment of the meshing performance.

The technical scheme of the invention is as follows: the utility model provides a novel intelligent gear, includes the gear module of fixed disk and a plurality of circumference equipartitions, each gear module all with fixed disk fixed connection, make the outer fringe concatenation of each gear module form a complete rim, arranged the regulating body in the seam crossing of adjacent gear module, the regulating body adopts variable rigidity flexible material, still includes:

the sensor module is used for directly sensing the meshing state parameters of the measuring gear and sending the parameters to the intelligent control system;

and the intelligent control system processes the parameters sent by the sensor module and controls the variable-rigidity flexible material of the adjusting body to perform rigidity-flexibility and deformation conversion according to the processed optimization instruction.

The novel intelligent gear is provided, and integrates real-time monitoring of gear meshing performance and dynamic adjustment of the gear meshing performance, so that a closed loop for adjusting the meshing performance from the monitoring of the meshing performance of the gear is realized. The gear is more intelligent based on the closed-loop circulation monitoring-adjusting, the meshing performance of the gear can be effectively ensured to be in the optimal state, and the gear is further favorable for ensuring the transmission precision of the gear and prolonging the service life of the gear. And based on the meshing performance that can carry out real time monitoring adjustment in order to optimize the gear in using, can show the machining precision requirement that reduces fixed disk and gear module itself to the processing degree of difficulty and the processing cost of gear have been reduced.

The number of the gear modules is even. The balance of the gear is better, and all performances are better.

The sensor module includes an accelerometer, a pressure sensor, a stress sensor, an angle sensor, a position sensor, a vibration detection sensor, and a temperature sensor. The acceleration can be monitored in real time when the gears are impacted and suddenly changed in the meshing process by adopting the accelerometer, so that the intelligent control system can conveniently execute corresponding self-protection operation, for example, electronic devices with poor anti-seismic performance in the gears are closed, the damage of the electronic devices is avoided, for example, a variable-rigidity flexible material is adjusted, and the gears are subjected to partition shock absorption. The stress value and the deformation quantity between the gear meshing pairs can be detected by adopting the pressure sensor and the stress sensor, and the rigidity-variable flexible material is accurately controlled according to the specific performance and the actual stress deformation value of the gear, so that the stress and the deformation between the gear meshing pairs are continuously in a better working condition. The method is characterized in that an angle sensor and a position sensor are used for detecting the dynamic angle and position of the high-accuracy gear, wherein the angle sensor sends a marking signal at the sampling moment of an analog signal and the data transmission ending moment while outputting the angular position, so that the corresponding relation between a time point and a position value generated by each angular position is accurately marked, the marked position can generate deviation along with the continuous operation of the gear, the deviation can form a real-time hysteresis parameter of the gear in a period, and the real-time hysteresis parameter is compared with a theoretical hysteresis curve of the gear so as to feed back and control the variable-rigidity flexible material, so that the clearance is eliminated, the meshing stress is adjusted, the vibration is absorbed, the transmission precision is improved and the like. The vibration detection sensor collects vibration signals so as to control the rigidity-flexibility switching of the rigidity-variable flexible material and absorb vibration. The temperature sensor is used for detecting friction heating between the gear meshing tooth pairs so as to accurately control the quantity of lubricating oil according to the friction temperature between the tooth pairs and further control the gear meshing temperature rise and the lubricating effect. In summary, the sensor module of the invention comprises the various sensors, can monitor the gear meshing state parameters in multiple dimensions, is convenient for an intelligent control system to timely adopt corresponding control operation, and is further favorable for ensuring the gear transmission precision and prolonging the gear service life.

The sensor module comprises an A sensor group and a B sensor group, wherein the A sensor group comprises an angle sensor, a pressure sensor, a stress sensor and a temperature sensor, the B sensor group comprises an accelerometer, a pressure sensor, a stress sensor and a position sensor, the number of the A sensor group and the B sensor group is one half of the number of joints of the gear module, and the A sensor group and the B sensor group are arranged at intervals at each joint; the vibration detection sensor is installed at the top of the key groove of the fixed disc shaft hole. The sensor modules are arranged at the joints of the gear modules at intervals in groups, and each joint is provided with the pressure sensor and the stress sensor, so that the stress and the deformation of the gear can be conveniently monitored at multiple points, and the stress and the deformation can be monitored more comprehensively and accurately; the angle sensor and the temperature sensor are in the same group, and the accelerometer and the position sensor are in the same group, so that the arrangement of the sensors is more reasonable.

The radial side surface of each gear module is provided with a semicircular groove, the grooves of the adjacent gear modules form a circular mounting hole, and the adjusting body is positioned in the circular mounting hole. The adjusting body is located the circular mounting hole of gear module seam crossing, makes the working face between adjusting body and the gear module level and smooth and as big as possible, avoids the adjusting body to arrange to bring stress concentration for the gear module on the one hand, and on the other hand is favorable to adjusting the body and adjusts gear engagement performance when just gentle and deformation conversion high-efficiently.

The fixed disk is a circular block with a shaft hole, one end face of the fixed disk protrudes to form an annular shaft sleeve part, the gear modules are fan-shaped, the same end face of each gear module is sunken to form a fan-shaped recess, the fan-shaped recesses of the gear modules form a circular recess for the fixed disk to be embedded in, and the inner edge of each gear module is positioned through the peripheral side face of the shaft sleeve part of the fixed disk; each gear module is provided with a first mounting hole, the fixed disc is provided with second mounting holes corresponding to the first mounting holes one to one, and the gear modules and the fixed disc are fixedly connected through bolts penetrating through the first mounting holes and the corresponding second mounting holes. Therefore, the fixed disc and the gear module are simple in structure and easy to produce and process; and the assembly operation of fixed disk and each gear module is convenient, and the holistic compact structure after assembling as an organic whole, occupation space is little, is favorable to the miniaturization of intelligent gear.

A rubber alloy layer is padded between the fixed disc and the fan-shaped contact surface of the gear module, and a rubber alloy sleeve is padded between the shaft sleeve part of the fixed disc and the inner edge of the gear module. The rubber alloy layer and the rubber alloy sleeve can buffer the play and impact between the fixed disc and the gear module.

Preferably, the intelligent control system includes:

the data acquisition module is used for acquiring data of each sensor in the sensor module;

the communication module is used for communicating with the server, transmitting the data acquired by the data acquisition module to the server and acquiring an optimization instruction from the server;

the server is used for storing, analyzing and displaying the data and feeding back an optimization instruction obtained by analysis and calculation to the communication module;

the controller is used for controlling the variable-rigidity flexible material to perform rigidity-flexibility and deformation conversion according to the optimization instruction acquired by the communication module;

and the power supply module is used for providing power supply.

The end face, facing the gear module, of the fixed disc is provided with four mounting grooves, and the data acquisition module, the communication module, the controller and the power supply module are arranged in the four mounting grooves respectively. Therefore, the data acquisition module, the communication module, the controller and the power supply module are respectively arranged in four independent cavities formed between the fixed disk and the gear module, so that the problem of large required installation space caused by the integration of the components is effectively avoided; on the other hand, the components are stably and reliably installed and are simple to install and operate; on the other hand, the fixed disc and the gear module can be utilized to form a shielding shell, so that not only can external electromagnetic interference be effectively avoided, but also the mutual interference of the parts can be avoided.

Preferably, the number of gear modules is four.

Has the advantages that: the novel intelligent gear is provided by arranging the fixed disc and the plurality of gear modules, arranging the adjusting body made of the variable-rigidity flexible material at the joint of the adjacent gear modules, and arranging the sensor module and the intelligent control system, so that the novel intelligent gear is integrated with real-time monitoring of the meshing performance of the gear and dynamic adjustment of the meshing performance of the gear, and a closed loop for adjusting the meshing performance of the gear from the monitoring of the meshing performance is realized.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram according to an embodiment of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a schematic structural view of the gear module of fig. 1.

Fig. 4 is a schematic structural view of the fixed disk in fig. 1.

Fig. 5 is a functional diagram of a system according to an embodiment of the invention.

Reference numerals: the vibration detection device comprises a gear module 1, a groove 1a, a first mounting hole 1b, a positioning groove 1c, a fan-shaped recess 1d, a fixed disc 2, a shaft sleeve part 211, a positioning rib 212, a mounting groove 2a, an arc-shaped wiring groove 2b, a linear wiring groove 2c, a second mounting hole 2d, an adjusting body 3, a bolt 4, a sensor group module 5, a rubber alloy layer 6, a rubber alloy sleeve 7, a transmission shaft 8, a rotor 911, a stator 912, an end cover 913 and a vibration detection sensor 10.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

As shown in fig. 1, fig. 2 and fig. 3, this embodiment provides a novel intelligent gear, including fixed disk 2 and a plurality of gear module 1 of circumference equipartition, each gear module 1 all with fixed disk 2 fixed connection, make the outer fringe concatenation of each gear module 1 form a complete rim. An adjusting body 3 is arranged at the joint of the adjacent gear modules 1, and the adjusting body 3 is made of a flexible material with variable rigidity. The radial side surface of each gear module 1 is provided with a semicircular groove 1a, the grooves 1a of the adjacent gear modules 1 form a circular mounting hole, and the adjusting body 3 is positioned in the circular mounting hole. To facilitate more precise control of the gear mesh performance, the circular mounting holes are located near the outer end of the joint of the gear module 1 (i.e., near the end of the gear teeth).

The variable rigidity flexible material belongs to the prior art, and the rigidity, the flexibility and the shape of the material are changed under the action of an external electric field and/or a magnetic field. The current electrorheological material or magnetorheological material or electromagnetic electrorheological material can be adopted, and the skilled person in the art can select the appropriate material by comprehensively considering various factors. In order to make the overall structure of the gear simpler and easier to produce, and to facilitate control over the variable-stiffness flexible material, the variable-stiffness flexible material is preferably an existing electrorheological material in this embodiment. Regarding the working principle and performance of the electrorheological material, the magnetorheological material and the electromagnetic electrorheological material, reference may be made to link http:// www.360doc.com/content/14/0925/23/1204156_412375902.shtml, which is not described herein again.

As shown in fig. 1, 2, 3 and 4, the fixed disk 2 is a circular block having a shaft hole, and one end surface of the fixed disk 2 protrudes to form an annular boss portion 211. Gear module 1 is fan-shaped to the same terminal surface of each gear module 1 all caves in and forms fan-shaped sunken 1d, a plurality of gear module 1 fan-shaped sunken 1d constitute one and supply the circular sunken of fixed disk 2 embedding. The fixed disk 2 is positioned in the circular recess, and the inner edge of each gear module 1 is positioned by the peripheral side surface of the shaft sleeve part 211 of the fixed disk 2. In order to avoid relative rotation between the gear module 1 and the fixed disk 2 during use, the circumferential side surface of the shaft sleeve part 211 protrudes to form positioning ribs 212 corresponding to the gear module 1 one by one, and positioning grooves 1c matched with the corresponding positioning ribs 212 are arranged on the inner edge of the gear module 1. It should be noted that the positioning ribs 212 and the positioning grooves 1c are designed to position and limit the inner edge of the gear module 1 on the fixed disk 2, but do not limit the swing of the outer edge of the gear module 1.

As shown in fig. 1, 3 and 4, each gear module 1 is provided with a first mounting hole 1b, the fixed plate 2 is provided with second mounting holes 2d corresponding to the first mounting holes 1b, and the gear module 1 and the fixed plate 2 are fixedly connected by bolts 4 penetrating through the first mounting holes 1b and the corresponding second mounting holes 2 d. In order to balance the stress among the gear modules 1, the first mounting hole 1b and the second mounting hole 2d are both arc-shaped strips adapted to the outer edge of the gear module 1, so that the outer edge of the gear module 1 can swing in a self-adaptive manner in actual use, and the width of the outer end of a seam between adjacent gear modules 1 is variable. It should be noted that this does not conflict with the design of the positioning rib 212 and the positioning groove 1 c.

As shown in fig. 2, a rubber alloy layer 6 is padded between the sector contact surfaces of the fixed disk 2 and the gear module 1, and a rubber alloy cover 7 is padded between the sleeve portion 211 of the fixed disk 2 and the inner edge of the gear module 1. Further, the rubber alloy layer 6 and the rubber alloy sleeve 7 may be adhesively fixed to the fixed disk 2 or the gear module 1. The rubber alloy layer 6 and the rubber alloy sleeve 7 are both made of the existing rubber alloy materials, and the appropriate materials are selected by taking all factors into consideration by the technical personnel in the field, which is not described herein.

As shown in fig. 1 and 3, the number of the gear modules 1 is not limited, but the even number of the gear modules 1 has better balance, and is more beneficial to the uniform arrangement of the sensors in the sensor modules. Considering various factors such as processing cost, assembly operation, and electronic component arrangement, the number of the gear modules 1 is preferably four in this embodiment.

As shown in fig. 5, the present embodiment further includes a sensor module for directly sensing the engagement state parameter of the measuring gear and transmitting the same to the intelligent control system. The type and number of the sensors in the sensor module are not limited, and the sensors may be accelerometers, pressure sensors, stress sensors, angle sensors, position sensors, vibration detection sensors, temperature sensors, noise sensors, etc., and those skilled in the art may set the corresponding sensors according to the parameters related to the gear meshing performance to be monitored. In order to realize the omnidirectional monitoring of multidimension degree, in order to do benefit to in time, accurate, efficient adjustment to the gear performance, this embodiment is preferred the sensor module includes accelerometer, pressure sensor, stress sensor, angle sensor, position sensor, vibration detection sensor and temperature sensor.

On the premise that the gear module 1 is provided with an even number of sensors, the sensor module in this embodiment includes an a sensor group and a B sensor group, wherein the a sensor group includes an angle sensor, a pressure sensor, a stress sensor and a temperature sensor, and the B sensor group includes an accelerometer, a pressure sensor, a stress sensor and a position sensor. The number of the sensor groups A and the number of the sensor groups B are respectively one half of the number of joints of the gear module 1, and the sensor groups A and the sensor groups B are arranged at intervals at the joints. The spacing arrangement here should be understood as: when the sensor group A is arranged in one of the seams, the sensor group B is arranged in two adjacent seams of the seam; if only two seams exist, one sensor group A is arranged, and the other sensor group B is arranged.

As shown in fig. 1 and fig. 2, in the present embodiment, there are four joints of the gear module 1 distributed in a cross shape, two joints located on the same straight line are arranged with the sensor group a, and two joints located on the other straight line are arranged with the sensor group B. In order to more accurately obtain the meshing performance of the gears, the sensor group A and the sensor group B are arranged close to the outer end of the seam of the gear module 1 and are positioned outside the circular mounting hole where the adjusting body 3 is positioned. And for convenient installation, each sensor group is prepared into a sensor group module 5 in advance so as to be uniformly stuck and fixed in the seam of the gear module 1. The vibration detection sensor 10 is installed at the top of a key groove of the shaft hole of the fixed disc 2, collects vibration data of the gear in time, feeds back contact force and return difference between the gear meshing pair, and reduces gear vibration.

As shown in fig. 5, the present embodiment further includes an intelligent control system, where the intelligent control system processes the parameters sent by the sensor module, and controls the variable-stiffness flexible material of the adjustment body 3 to perform stiffness-flexibility and deformation conversion according to the processed optimization instruction.

In this embodiment, preferably, the intelligent control system includes:

and the data acquisition module is used for acquiring data of each sensor in the sensor module.

And the communication module is used for communicating between the gear and the server, transmitting the data acquired by the data acquisition module to the server and acquiring the optimization instruction from the server. The communication module is a low-power wireless communication module, and the communication mode comprises protocols such as WIFI, Bluetooth and GSM.

And the server is used for storing, analyzing and displaying the data and feeding the optimization instruction obtained by analysis and calculation back to the communication module. The server comprises a cloud and a PC (personal computer) terminal, wherein the cloud stores data, and the PC terminal analyzes and displays the data. Of course, those skilled in the art will understand that the server side should also be provided with an external communication module matched with the aforementioned communication module for signal transmission.

And the controller is used for controlling the variable-rigidity flexible material to perform rigidity-flexibility and deformation conversion according to the optimization instruction acquired by the communication module. In addition, in this embodiment, the sensor module includes a temperature sensor, and the controller further includes a lubricating oil control module for controlling the amount of lubricating oil. The controller controls rigidity, flexibility and deformation of the variable-rigidity flexible material, and is realized by utilizing the electro-rheological or magneto-rheological or electro-magnetic rheological characteristics of the variable-rigidity flexible material, and specifically the controller controls an electric field and/or a magnetic field of the variable-rigidity flexible material so as to enable the variable-rigidity flexible material to generate rigidity, flexibility and deformation changes. As described above, in this embodiment, it is preferable that the variable-stiffness flexible material is an existing electrorheological material, and therefore, in this embodiment, the controller controls the variable-stiffness flexible material to perform rigid-flexible deformation change through an electrical signal, so as to absorb vibration and impact in the gear meshing process, and adjust the width of the joint between the gear modules 1, that is, the gap between the gear modules 1, so as to control the meshing force between the gear meshing teeth, eliminate the gear gap and error caused by the wear of the gear, and improve the gear meshing accuracy and performance. The lubricating oil control module in the controller is the same as the lubricating oil control module in the conventional system, and is not described in detail.

And the power supply module is used for supplying power to the sensor module, the data acquisition module, the communication module and the controller. The power supply of the power supply module is not limited, and may be a storage battery, a rechargeable battery, a generator that generates electricity by using the rotation of any rotating member in the transmission system where the gear is located, or a combination of the three methods or any two of the three methods. The preferred power module of this embodiment includes a generator and a rechargeable battery, the generator is used as the main power source, as shown in fig. 2, the generator includes an end cap 913, a stator 912 and a rotor 911 fixedly sleeved on the transmission shaft 8. The rechargeable battery is used as a standby power supply, the generator charges the rechargeable battery, and the rechargeable battery also has a wireless charging function.

As shown in fig. 2 and 4, four mounting grooves 2a are formed on an end surface of the fixed disk 2 facing the gear module 1, and the data acquisition module, the communication module, the controller and the power module are respectively disposed in the four mounting grooves 2 a. In order to facilitate wiring, four arc-shaped wiring grooves 2b are formed in the end surface of the fixed disk 2 facing the gear module 1, and the arc-shaped wiring grooves 2b are connected between the adjacent mounting grooves 2 a.

As shown in fig. 2 and 4, a linear wiring groove 2c corresponding to the joint of the gear module 1 one by one is further formed in the end surface of the fixed disk 2 facing the gear module 1, the linear wiring groove 2c is arranged along the radial direction of the fixed disk 2, one end of the linear wiring groove 2c penetrates through the peripheral side surface of the fixed disk 2, and the other end is communicated with the arc-shaped wiring groove 2b or the mounting groove 2 a. In this embodiment, since the number of the gear modules 1 is four, the number of the linear wiring grooves 2c is also four, and the inner ends of the linear wiring grooves 2c communicate with the mounting grooves 2 a.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.