Frictional rotational inerter with variable inertance coefficient

Abstract

The application discloses a friction type rotary inertia container with variable inertial mass coefficient, comprising an input shaft, a pre-tightening mechanism, a driving end cover, a driven end cover, a friction wheel, a friction wheel steering mechanism assembly, a flywheel, a flywheel engaging assembly, an output shaft, a sensor, an ECU and the like. The device realizes the transmission from the input shaft to the output shaft through the friction effect of the friction wheel and the contact friction surface in the driving and driven end covers, adjusts the contact friction force by controlling the driving of the pre-tightening mechanism to drive the compression nut to rotate and adjusting the spring compression amount and the pre-tightening force. The flywheel is an inertia element, the ECU continuously changes the transmission ratio of the driving and driven end covers by controlling the rotation angle of the friction wheel, realizes the continuous adjustment of the inertia of the inertia container, and realizes the variable of the inertial mass coefficient by controlling the engagement of the friction disc and different flywheels. The application realizes the continuous adjustment of the inertia and the variable of the inertia mass coefficient by the friction mode, is low in cost, widens the implementation mode of the inertia container, and has good engineering application value.

Description

Technical Field

[0001] This invention belongs to the field of vibration reduction technology for inertial containers, and particularly relates to a friction-type rotating inertial container with a variable mass coefficient. Background Technology

[0002] Typical vibration reduction systems often consist of springs and dampers, which form the basis of traditional vibration reduction system structures. These systems offer advantages such as mature technology, simple structure, low cost, and convenient maintenance. However, when loads and operating conditions change, it is difficult for them to maintain good overall performance to meet vibration reduction requirements. In 2001, Professor Smith of Cambridge University proposed the concept of an inertial container based on the new electromechanical similarity theory. An inertial container is a device with two endpoints; essentially, it is a component that amplifies and stores the inertia of an object. The force acting on its two endpoints is proportional to the acceleration, and the proportionality coefficient is called the inertial-mass coefficient. Since its introduction, the inertial container has received widespread research and attention.

[0003] After years of theoretical and practical development, the types of inertia containers have become increasingly diverse. Broadly speaking, they can be categorized into mechanical, fluid, and electromagnetic types. Currently, the more mature implementations of inertia containers include rack and pinion inertia containers, ball screw inertia containers, and hydraulic inertia containers. Rack and pinion inertia containers amplify the rotational inertia of the flywheel through the speed-increasing principle of the gear pair, achieving a large rotational inertia characteristic. However, the backlash between the gears in rack and pinion inertia containers causes a delay in system response, and the impact caused during reversal reduces the service life of components. Ball screw inertia containers utilize the rotation of an internal nut driven by a ball screw to store kinetic energy and encapsulate inertia. However, ball screw inertia containers suffer from complex structures, high costs, and difficulty in maintenance. Hydraulic inertia containers use a hydraulic piston to drive the high-speed flow of oil in a spiral tube, thereby encapsulating fluid inertia. They have advantages such as high load-bearing capacity and fast response speed. However, the friction within the oil in the spiral tube of a hydraulic inertia container generates additional parasitic damping, and there are also issues such as high machining precision and high sealing requirements.

[0004] Meanwhile, in the field of inertial container design, most inertial containers are translational reciprocating motion inertial containers, and there is very little research on rotating inertial containers, which are mostly concentrated on planetary gear inertial containers. Among the existing inertial container structures, very few achieve inertia encapsulation through friction, and even fewer have a variable mass coefficient and continuously adjustable inertia. With the increasing demand for vibration reduction performance in modern times, designing a rotating inertial container with a simple structure, continuously adjustable inertia, and a variable mass coefficient is one of the urgent problems to be solved. Summary of the Invention

[0005] The purpose of this invention is to achieve continuously adjustable inertia by changing the rotation angle of the friction wheels in the active and driven end caps. Simultaneously, by driving the flywheel engagement assembly to engage the friction disc with different flywheels, causing the flywheels to rotate synchronously, the inertial mass coefficient of the inertial container can be varied. Furthermore, it provides overload protection when the load on the vibration damping system changes excessively, and the structure is simple and easy to operate. Therefore, a friction-type rotating inertial container with a variable inertial mass coefficient is proposed.

[0006] The present invention achieves the above-mentioned technical objectives by utilizing the following technical means.

[0007] A friction-type rotating inertia container with a variable inertia coefficient comprises an input shaft (1), a clamping nut (2), a clamping spring (3), an active end cap (4), a friction wheel (5), a friction wheel steering mechanism assembly (6), a driven end cap (7), a steering gear set (8), a first flywheel limiting block (9), a first flywheel thrust bearing (10), a first flywheel (11), a flywheel inner friction surface (12), a flywheel engagement assembly (13), a second flywheel (14), a second flywheel thrust bearing (15), a second flywheel limiting block (16), an output shaft (17), an ECU (18), a sensor (19), a friction wheel shaft (20), a steering gear limiting block (21), a steering handle (22), a steering strut (23), a friction wheel connecting rod (24), a friction wheel friction surface (25), a first flywheel friction disc (26), a sliding column (27), a second flywheel friction disc (28), a limiting groove (29), and an input shaft thread (30).

[0008] The input shaft (1) is located at one end of the inertial container, and can rotate around the axis and transmit the rotational speed and torque from the external system. The input shaft (1) and the output shaft (17) are arranged in parallel and symmetrically with respect to the friction wheel (5) and are located on the same axis.

[0009] The input shaft (1) is rotatably connected to the active end cover (4) and located on the same axis. The input shaft (1) can drive the active end cover (4) to rotate synchronously around the axis and can generate relative axis movement.

[0010] The input shaft (1) has an input shaft thread (30) on its outer surface near the active end cap (4), and the input shaft thread is a cylindrical external thread.

[0011] In one embodiment, the active end cap (4) is rotatably connected to the end of the input shaft (1), and the driven end cap (7) is rotatably connected to the beginning of the output shaft (17).

[0012] The clamping nut (2) passes through the input shaft (1) and engages with the thread (30) of the input shaft, allowing it to rotate about the axis and compress the spring;

[0013] The compression spring (3) passes through the input shaft (1) and is fixedly connected at one end to the compression nut (2) and at the other end to the active end cover (4). At the same time, the compression spring (3) has a certain preload at the beginning.

[0014] In one embodiment, the friction wheel (5) is divided into upper and lower friction wheels and is arranged symmetrically about the axes of the input shaft (1) and the output shaft (17); at the same time, the friction wheel (5) can rotate freely around the wheel axis;

[0015] The friction wheel steering mechanism assembly (6) consists of a steering column (23), a friction wheel connecting rod (24), a steering gear set (8), a steering gear limiting block (21), and a steering handle (22); wherein, the steering handle (22) is fixedly connected to one end of the steering column (23), the friction wheel connecting rod (24) is fixedly connected to the other end of the steering column (23), the steering gear set (8) is connected to the steering column (23) by a flat key and achieves circumferential fixation, and the steering gear limiting block (21) is slidably connected to the steering column (23) and can move axially, while simultaneously achieving axial fixation of the gear;

[0016] Furthermore, the friction wheel steering mechanism assembly (6) is connected to the friction wheel (5) via the friction wheel shaft (20).

[0017] The active end cap (4) and the driven end cap (7) are arranged symmetrically and in opposite directions with respect to the friction wheel steering mechanism assembly (6) and the friction wheel (5); the inner surfaces of the active end cap (4) and the driven end cap (7) are friction surfaces with a certain coefficient of friction.

[0018] The output shaft (17) passes through the first flywheel limiting block (9), the first flywheel thrust bearing (10), the first flywheel (11), the flywheel engagement assembly (13), the second flywheel (14), the second flywheel thrust bearing (15), the second flywheel (14), and the second flywheel limiting block (16), and is located on the same axis as them.

[0019] The first flywheel limiting block (9) and the second flywheel limiting block (16) can move or remain stationary along the output shaft axis, which serves to fix the axial movement of the first flywheel thrust bearing (10), the first flywheel (11), the second flywheel (14), and the second flywheel thrust bearing (15).

[0020] The first flywheel thrust bearing (10) is fixedly connected at both ends to the first flywheel (11) and the first flywheel limiting block (9), and its right-side bearing thrust washer rotates synchronously with the first flywheel (11); the second flywheel thrust bearing (15) is fixedly connected at both ends to the second flywheel (14) and the second flywheel limiting block (16), and its left-side bearing thrust washer rotates synchronously with the second flywheel (14);

[0021] Furthermore, the first flywheel thrust bearing (10) and the second flywheel direct thrust bearing are thrust cylindrical roller bearings.

[0022] The flywheel engagement assembly (13) consists of a first flywheel friction disc (26), a sliding column (27), a second flywheel friction disc (28), and a limiting groove (29). The first flywheel friction disc (26) is fixedly connected to one end of the sliding column (27), and the second flywheel friction disc (28) is fixedly connected to the other end of the sliding column (27). A positioning step is machined on the sliding column (27).

[0023] In one embodiment, the friction wheel (5) is always in frictional contact with the inner friction surfaces of the active end cover (4) and the driven end cover (7) at both ends. When the driven end cover (7) rotates synchronously with the input shaft (1), the friction wheel is driven to roll around the wheel shaft under the action of the friction force of the contact surface. Furthermore, the friction wheel is driven to rotate by the friction force of the contact surface on the other side. Furthermore, the output shaft (17) rotates synchronously with the driven end cover (7), and finally the transmission from the input shaft (1) to the output shaft (17) is realized.

[0024] In one embodiment, the steering gear set (8) is composed of a pair of meshing spur gears. The pair of meshing gears are arranged symmetrically and have the same basic parameters such as size, module, thickness, pressure angle, number of teeth, etc. and the same mass. Under the conditions of lubrication and normal working temperature, it prevents impact, noise and idle stroke, etc., by using the minimum tooth backlash.

[0025] In one embodiment, the steering lever (22) can rotate under the control of the ECU (18), driving the upper support of the steering pillar (23), the upper wheel of the friction wheel (5) and the upper gear of the steering gear set (8) to rotate synchronously. Furthermore, under the meshing transmission action of the steering gear, the lower support of the steering pillar (23) and the lower wheel of the friction wheel (5) can rotate synchronously in opposite directions. Without considering the wear and clearance of the steering mechanism, the friction wheel (5) should have opposite steering angles.

[0026] In one embodiment, the clamping nut (2) and the clamping spring (3) constitute the pre-tightening mechanism of the friction-type rotating inertial container. The clamping nut (2) rotates under the control of the ECU (18) to realize the movement of the axis. The compression amount of the clamping spring (3) changes, and the spring pre-tightening force changes accordingly. Under the action of the spring pre-tightening force, the contact pressure and friction force between the friction wheel (5) and the active end cover are further adjusted.

[0027] In one embodiment, the clamping nut (2) is threadedly engaged with the input shaft thread (30), and the thread profile, pitch, and direction of rotation are consistent.

[0028] In one embodiment, the compression spring (3) is a cylindrical helical spring made of carbon spring steel, which has certain impact toughness and plasticity.

[0029] In one embodiment, when the friction wheel steering mechanism assembly (6) drives the friction wheel (5) to rotate around the support axis, the distance from the friction wheel (5) to the contact point of the friction surface inside the active end cover (4) and the driven end cover (7) to the input shaft (1) and the output shaft (17) changes and is no longer equal, thereby realizing the stepless change of the transmission ratio between the input shaft (1) and the output shaft (17), realizing the encapsulation of the inertia of the rotating inertia container, and further realizing the continuous adjustment of the inertia.

[0030] In one embodiment, the friction wheel (5), the inner friction surface (12) of the flywheel, the first flywheel friction disc (26), the second flywheel friction disc (28), and the inner friction surfaces of the active end cover (4) and the driven end cover (7) are made of copper-based powder metallurgy to meet working requirements and consider manufacturing costs. Furthermore, metal ceramic materials can be selected because they have a large coefficient of friction.

[0031] In one embodiment, the flywheel engagement assembly (13) can move axially along the output shaft under the control of the ECU (18), driving the first flywheel friction disc (26) and the second flywheel friction disc (28) at both ends to fit with the flywheel internal friction surfaces (12) inside the first flywheel (11) and the second flywheel (14), respectively, driving flywheels of different sizes to rotate synchronously with the output shaft, and further realizing the variable inertial mass coefficient of the inertial container.

[0032] The present invention provides a friction-type rotating inertia container with a variable inertia coefficient, which, compared with the prior art, achieves the following beneficial effects:

[0033] 1. This device transmits power through the friction characteristics of the friction wheel and friction disc, transferring the rotational torque of the input shaft to the output shaft and flywheel. The input shaft, output shaft, and flywheel are all located on the same axis. The flywheel achieves inertial capacity characteristics. Compared with traditional inertial containers (gear and rack type, ball screw type), it can achieve a compact stepless transmission, broadening the implementation methods of inertial containers.

[0034] 2. By analyzing the data collected by the sensors in the system, the ECU can control the rotation of the friction wheel steering mechanism, which in turn drives a pair of friction wheels to rotate in opposite directions. At the same time, it can control the rotation angle of the friction wheels to achieve continuous adjustment of the inertia of the inertia container. On the other hand, the ECU can also control the flywheel engagement assembly to move along the output shaft axis, and control the engagement and disengagement of the friction disc on the flywheel engagement assembly with different flywheels to adapt to different working conditions, achieve two-level adjustment of the inertia coefficient, and thus realize the function of variable inertia coefficient.

[0035] 3. The device is simple to manufacture and assemble, has low manufacturing cost and compact structure. At the same time, the ECU can also control the preload mechanism and adjust the preload and friction force. It can realize the overload protection function under the condition of increased load and change of working conditions, and has good engineering application value. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0037] Figure 1 (a) is a planar cross-sectional view of a friction-type rotating inertia container with a variable inertia coefficient according to the present invention (friction wheel rotating).

[0038] Figure 1 (b) is a planar sectional view of a friction-type rotating inertia container with a variable inertia coefficient according to the present invention (the friction wheel is not rotating);

[0039] Figure 2 This is a three-dimensional top view of a friction-type rotating inertia container with a variable mass coefficient as described in this invention;

[0040] Figure 3 This is a three-dimensional isometric view of a friction-type rotating inertial container with a variable inertial mass coefficient as described in this invention;

[0041] Figure 4 This is a three-dimensional isometric view of the friction wheel and friction wheel steering mechanism in a friction-type rotating inertia container with a variable inertia coefficient according to the present invention.

[0042] Figure 5 This is a three-dimensional isometric view of a flywheel engagement assembly in a friction-type rotating inertia container with a variable mass coefficient, as described in this invention.

[0043] Figure 6 (a) Figure 6 (b) is a three-dimensional view of the first flywheel and the second flywheel in a friction-type inertial container with a variable inertial mass coefficient according to the present invention;

[0044] Figure 7 This is a flowchart of the present invention.

[0045] [Explanation of Labels in the Attached Image]

[0046] 1-Input shaft; 2-Compression nut; 3-Compression spring; 4-Driving end cover; 5-Friction wheel; 6-Friction wheel steering mechanism assembly; 7-Driven end cover; 8-Steering gear set; 9-First flywheel limit block; 10-First flywheel thrust bearing; 11-First flywheel; 12-Friction wheel inner friction surface; 13-Friction wheel engagement assembly; 14-Second flywheel; 15-Second flywheel thrust bearing; 16-Second flywheel limit block; 17-Output shaft; 18-ECU; 19-Sensor; 20-Friction wheel shaft; 21-Steering gear limit block; 22-Steering handle; 23-Steering strut; 24-Friction wheel connecting rod; 25-Friction wheel friction surface; 26-First flywheel friction disc; 27-Sliding column; 28-Second flywheel friction disc; 29-Limiting groove; 30-Input shaft thread. Detailed Implementation

[0047] The present invention will be further described clearly and completely below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0048] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention can only be used to explain the relative positional relationship and movement of the components under a specific posture. If the specific posture changes, the corresponding directional indicators will also change accordingly. Furthermore, descriptions such as "first" and "second" in the present invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features marked with "first" or "second" may explicitly or implicitly include at least one of those features.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or a connection through an intermediate medium, such as a screw or nut. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0050] A friction-type rotating inertia container with a variable inertia coefficient comprises an input shaft (1), a clamping nut (2), a clamping spring (3), an active end cap (4), a friction wheel (5), a friction wheel steering mechanism assembly (6), a driven end cap (7), a steering gear set (8), a first flywheel limiting block (9), a first flywheel thrust bearing (10), a first flywheel (11), a flywheel inner friction surface (12), a flywheel engagement assembly (13), a second flywheel (14), a second flywheel thrust bearing (15), a second flywheel limiting block (16), an output shaft (17), an ECU (18), a sensor (19), a friction wheel shaft (20), a steering gear limiting block (21), a steering handle (22), a steering strut (23), a friction wheel connecting rod (24), a friction wheel friction surface (25), a first flywheel friction disc (26), a sliding column (27), a second flywheel friction disc (28), a limiting groove (29), and an input shaft thread (30).

[0051] The input shaft (1) is located at one end of the inertial container, and can rotate around the axis and transmit the rotational speed and torque from the external system. The input shaft (1) and the output shaft (17) are arranged in parallel and symmetrically with respect to the friction wheel (5) and are located on the same axis.

[0052] like Figure 1 The input shaft (1) is rotatably connected to the active end cover (4) and located on the same axis. The input shaft (1) can drive the active end cover (4) to rotate synchronously around the axis and can generate relative axis movement.

[0053] The input shaft (1) has an input shaft thread (30) on its outer surface near the active end cap (4), and the input shaft thread is a cylindrical external thread.

[0054] like Figure 1 and Figure 2 The active end cap (4) is rotatably connected to the end of the input shaft (1), and the driven end cap (7) is rotatably connected to the beginning of the output shaft (17).

[0055] The clamping nut (2) passes through the input shaft (1) and engages with the thread (30) of the input shaft, allowing it to rotate about the axis and compress the spring.

[0056] The compression spring (3) passes through the input shaft (1) and is fixedly connected at one end to the compression nut (2) and at the other end to the active end cover (4). At the same time, the compression spring (3) has a certain preload at the beginning.

[0057] like Figure 1 and Figure 4 The friction wheel (5) is divided into two friction wheels, upper and lower, and is arranged symmetrically about the input shaft (1) and output shaft (17) axis; at the same time, the friction wheel (5) can rotate freely around the wheel axis.

[0058] The friction wheel steering mechanism assembly (6) consists of a steering support (23), a friction wheel connecting rod (24), a steering gear set (8), a steering gear limiting block (21), and a steering handle (22). The friction wheel steering mechanism assembly (6) is connected to the friction wheel (5) through the friction wheel shaft (20).

[0059] like Figure 1 and Figure 2 The active end cap (4) and the driven end cap (7) are arranged symmetrically and in opposite directions with respect to the friction wheel steering mechanism assembly (6) and the friction wheel (5); the inner surfaces of the active end cap (4) and the driven end cap (7) are friction surfaces with a certain coefficient of friction.

[0060] The output shaft (17) passes through the first flywheel limiting block (9), the first flywheel thrust bearing (10), the first flywheel (11), the flywheel engagement assembly (13), the second flywheel (14), the second flywheel thrust bearing (15), the second flywheel (14) and the second flywheel limiting block (16), and is located on the same axis as them;

[0061] The first flywheel limiting block (9) and the second flywheel limiting block (16) can move or remain stationary along the output shaft axis, and play the role of fixing the axial movement of the first flywheel thrust bearing (10), the first flywheel (11), the second flywheel (14), and the second flywheel thrust bearing (15);

[0062] Furthermore, the first flywheel limiting block (9) should maintain a certain distance from the driven end cover (7) on the output shaft (17) to prevent the flywheel from interfering with the driven end cover (7).

[0063] like Figure 1 and Figure 3 The first flywheel thrust bearing (10) is fixedly connected at both ends to the first flywheel (11) and the first flywheel limiting block (9), and its right bearing thrust washer rotates synchronously with the first flywheel (11); the second flywheel thrust bearing (15) is fixedly connected at both ends to the second flywheel (14) and the second flywheel limiting block (16), and its left bearing thrust washer rotates synchronously with the second flywheel (14).

[0064] Furthermore, the first flywheel thrust bearing (10) and the second flywheel direct thrust bearing are thrust cylindrical roller bearings.

[0065] like Figure 5 The flywheel engagement assembly (13) consists of a first flywheel friction disc (26), a sliding column (27), a second flywheel friction disc (28), and a limiting groove (29);

[0066] The diameter of the limiting groove (29) is greater than or equal to the diameter of the bearing seat inside the first flywheel (11) and the second flywheel (14) to prevent the flywheel from impacting the friction plate during the engagement process.

[0067] The friction wheel (5) always maintains frictional contact with the inner friction surfaces of the active end cover (4) and the driven end cover (7) at both ends. When the driven end cover (7) rotates synchronously with the input shaft (1), the friction wheel is driven to roll around the wheel shaft under the action of the friction force of the contact surface. Furthermore, the friction wheel is driven to rotate under the action of the friction force of the contact surface on the other side. Furthermore, the output shaft (17) rotates synchronously with the driven end cover (7), and finally realizes the transmission from the input shaft (1) to the output shaft (17).

[0068] like Figure 2 and Figure 5 The steering gear set (8) consists of a pair of meshing spur gears. The pair of meshing gears are arranged symmetrically, and have the same basic parameters such as size, module, thickness, pressure angle, and number of teeth, and the same mass. Under the conditions of lubrication and normal working temperature, it prevents impact, noise and idle stroke, etc., and uses the minimum tooth backlash.

[0069] The steering lever (22) can rotate under the control of the ECU (18), driving the upper support of the steering pillar (22), the upper wheel of the friction wheel (5) and the upper gear of the steering gear set (8) to rotate synchronously. Furthermore, under the meshing transmission action of the steering gear, the lower support of the steering pillar (22) and the lower wheel of the friction wheel (5) can rotate synchronously in opposite directions. Without considering the wear and clearance of the steering mechanism, the friction wheel (5) should have opposite steering angles.

[0070] The clamping nut (2) and the clamping spring (3) constitute the pre-tightening mechanism of the friction-type rotating inertial container. The clamping nut (2) rotates under the control of the ECU (18) to realize the movement of the axis. The compression amount of the clamping spring (3) changes, and the spring pre-tightening force changes accordingly. Under the action of the spring pre-tightening force, the contact pressure and friction force between the friction wheel (5) and the active end cover are further adjusted.

[0071] The flywheel engagement assembly (13) can move along the output shaft axial direction under the control of the ECU (18), driving the first flywheel friction disc (26) and the second flywheel friction plate (28) at both ends to fit with the flywheel internal friction surface (12) inside the first flywheel (11) and the second flywheel (14) respectively, driving flywheels of different sizes to rotate synchronously with the output shaft, and further realizing the variable inertial mass coefficient of the inertial container.

[0072] When the friction wheel steering mechanism assembly (6) drives the friction wheel (5) to rotate around the support axis, the distance from the friction wheel (5) to the contact point of the friction surface inside the active end cover (4) and the driven end cover (7) to the input shaft (1) and the output shaft (17) changes and is no longer equal. This realizes the stepless change of the transmission ratio between the input shaft (1) and the output shaft (17), realizes the encapsulation of the inertia of the rotating inertia container, and further realizes the continuous adjustment of the inertia.

[0073] The clamping nut (2) is threadedly engaged with the input shaft thread (30), and the thread profile, pitch and direction of rotation are consistent.

[0074] The compression spring (3) is a cylindrical helical spring made of carbon spring steel, which has certain impact toughness and plasticity.

[0075] The friction wheel (5), the inner friction surface (12) of the flywheel, the first flywheel friction disc (26), the second flywheel friction disc (28), and the inner friction surfaces of the active end cover (4) and the driven end cover (7) are made of copper-based powder metallurgy to meet working requirements and consider manufacturing costs. Furthermore, metal ceramic materials can be selected because they have a large coefficient of friction.

[0076] The following section further explains the working process of this rotating inertial container, such as... Figure 7 As shown, the flowchart for adjusting the inertia and mass coefficient of the rotating inertial container based on the input shaft operating status information includes the following steps:

[0077] Step 1: Import the basic structural parameters of the rotary inertial container into the ECU (18), and at the same time, the sensor (19) sends the collected input shaft running information data to the ECU;

[0078] Step 2: The ECU (18) processes the operating information data and, in conjunction with the operating condition information, calculates the inertia and mass coefficient suitable for the current operating condition.

[0079] Step 3: The ECU (18) sends a command to the friction wheel steering mechanism assembly (6) to adjust the rotation angle of the friction wheel (5);

[0080] Step 4: The ECU (18) sends a command to the flywheel engagement assembly (13) to control the friction disc to engage with a specific flywheel;

[0081] Step 5: The ECU (18) sends a command to the preload mechanism to adjust the spring preload and the friction force of the friction wheel;

[0082] Step 6: The sensor (19) continues to collect system operation information data, and the ECU (18) evaluates the information. If adjustments are needed, proceed to step 2.

[0083] Step 7: If the system finishes running, end this service; otherwise, proceed to Step 1.

[0084] The specific work process is as follows:

[0085] When the friction-type rotating inertia container starts working, the ECU (18) imports the basic structural parameters of the rotating inertia container, and at the same time imports the operating condition information such as the speed and torque of the input shaft (1). The rotation of the input shaft (1) drives the active end cover (4) to rotate synchronously. The friction wheel (5) maintains frictional contact with the active end cover (4) and the driven end cover (7). The driven end cover (4) drives the friction wheel (5) to rotate around its wheel axle (20). Furthermore, the friction wheel (4) drives the driven end cover (7) to rotate under the action of friction. The driven end cover (7) drives the output shaft to rotate synchronously. The ECU (18) starts to process the operating condition information based on the data information imported by the sensor (19), makes a judgment and calculates the inertia and inertial mass coefficient suitable for the operating condition. The ECU (18) issues a command to control the steering lever (22). The steering lever (22) rotates, which drives the upper wheel of the friction wheel (5) to rotate counterclockwise by an angle through the steering support (23). At the same time, the steering support (23) drives the steering gear set (8) on it to rotate. Under the meshing action of the gears, the lower wheel of the friction wheel (5) rotates clockwise by the same angle.

[0086] Furthermore, the ECU (18) issues a command to control the flywheel engagement assembly (13). When a larger inertia coefficient is selected, the flywheel engagement assembly (13) moves to the left on the output shaft, driving the first flywheel friction disc (26) at its left end.

[0087] Engages with the inner friction surface (12) of the first flywheel (11), driving the flywheel to rotate; when a smaller coefficient of inertia is selected, the flywheel engagement assembly (13) moves to the right on the output shaft, driving the second flywheel friction disc (28) at its right end to engage with the inner friction surface (12) of the second flywheel (14), driving the flywheel to rotate. Further, the ECU (18) sends a command to the preload mechanism to control the rotation of the clamping nut (2), changing the compression of the clamping spring (3), thus adjusting the friction force of the friction wheel (5).

[0088] The embodiments described are preferred embodiments of the present invention, but the present invention is not limited to these embodiments. Modifications, variations and substitutions made by those skilled in the art without departing from the essential content of the present invention are all within the protection scope of the present invention.

Claims

1. A friction-type rotating inertia container with a variable mass coefficient, characterized in that, Includes input shaft (1), clamping nut (2), clamping spring (3), active end cover (4), friction wheel (5), friction wheel steering mechanism assembly (6), driven end cover (7), steering gear set (8), first flywheel limit block (9), first flywheel thrust bearing (10), first flywheel (11), flywheel inner friction surface (12), flywheel engagement assembly (13), second flywheel (14), second flywheel thrust bearing (15), second flywheel limit block (16), output shaft (17), friction wheel shaft (20), steering gear limit block (21), steering handle (22), steering column (23), friction wheel connecting rod (24), friction wheel friction surface (25), first flywheel friction disc (26), sliding column (27), second flywheel friction disc (28), limit slide groove (29), input shaft thread (30); The input shaft (1) is located at one end of the inertial container, can rotate around the axis and transmit the rotational speed and torque from the external system, and is arranged parallel and symmetrically with the output shaft (17) and located on the same axis. The input shaft (1) is connected to the active end cover (4) and is located on the same axis. The input shaft (1) can drive the active end cover (4) to rotate synchronously around the axis and can generate relative axis movement. The input shaft (1) has an input shaft thread (30) on its outer surface near the active end cap (4), and the input shaft thread is a cylindrical external thread; The clamping nut (2) passes through the input shaft (1) and is threaded (30) with the input shaft, allowing it to rotate freely. The compression spring (3) passes through the input shaft (1) and is connected at one end to the compression nut (2) and at the other end to the active end cap (4); The friction wheel (5) is divided into upper and lower friction wheels and is arranged symmetrically about the input shaft (1) and output shaft (17) axis; at the same time, the friction wheel (5) can rotate around the wheel axis and has a friction wheel friction surface (25). The friction wheel steering mechanism assembly (6) consists of a steering column (23), a friction wheel connecting rod (24), a steering gear set (8), a steering gear limiting block (21), and a steering handle (22). The steering handle (22) is fixedly connected to one end of the steering column (23), and the friction wheel connecting rod (24) is fixedly connected to the other end of the steering column (23). The steering gear set (8) and the steering column (23) are connected by a flat key and circumferentially fixed. The steering gear limiting block (21) and the steering column (23) are slidably connected and can move axially, while simultaneously fixing the gear axially. The friction wheel steering mechanism assembly (6) is fixedly connected to the friction wheel (5) via the friction wheel shaft (20); The active end cap (4) and the driven end cap (7) are arranged symmetrically and in opposite directions with respect to the friction wheel steering mechanism assembly (6) and the friction wheel (5); the inner cavities of the active end cap (4) and the driven end cap (7) are internal friction surfaces; The output shaft (17) passes through the first flywheel limiting block (9), the first flywheel thrust bearing (10), the first flywheel (11), the flywheel engagement assembly (13), the second flywheel (14), the second flywheel thrust bearing (15), the second flywheel (14) and the second flywheel limiting block (16), and is located on the same axis as them; The first flywheel limiting block (9) and the second flywheel limiting block (16) can move or remain stationary along the output shaft axis, and play the role of fixing the axial movement of the first flywheel thrust bearing (10), the first flywheel (11), the second flywheel (14), and the second flywheel thrust bearing (15); The first flywheel thrust bearing (10) is fixedly connected at both ends to the first flywheel (11) and the first flywheel limiting block (9), and its right-side bearing thrust washer rotates synchronously with the first flywheel (11); the second flywheel thrust bearing (15) is fixedly connected at both ends to the second flywheel (14) and the second flywheel limiting block (16), and its left-side bearing thrust washer rotates synchronously with the second flywheel (14); The flywheel engagement assembly (13) consists of a first flywheel friction disc (26), a sliding column (27), a second flywheel friction disc (28), and a limiting groove (29). The first flywheel friction disc (26) is fixedly connected to one end of the sliding column (27), and the second flywheel friction disc (28) is fixedly connected to the other end of the sliding column (27). A positioning step is machined on the sliding column (27).

2. The inertial container according to claim 1, characterized in that, The friction wheel (5) always maintains frictional contact with the inner friction surfaces of the active end cover (4) and the driven end cover (7) at both ends. When the driven end cover (7) rotates synchronously with the input shaft (1), the friction wheel is driven to roll around the wheel shaft under the action of the friction force of the contact surface. The friction wheel (5) is driven to rotate by the friction force of the contact surface on the other side. The output shaft (17) rotates synchronously with the driven end cover (7), and finally realizes the transmission from the input shaft (1) to the output shaft (17).

3. The inertial container according to claim 1, characterized in that, The steering gear set (8) consists of a pair of meshing spur gears. The pair of spur gears are arranged symmetrically, have the same basic parameters and the same mass, and use the minimum tooth backlash to prevent impact, noise and idle stroke while meeting lubrication and normal operating temperature requirements.

4. The inertial container according to claim 1, characterized in that, The steering lever (22) rotates under the control of the ECU (18), which drives the upper support of the steering pillar (23), the upper wheel of the friction wheel (5) and the upper gear of the steering gear set (8) to rotate synchronously. Under the meshing transmission of the steering gear, the lower support of the steering pillar (23) and the lower wheel of the friction wheel (5) can rotate synchronously in opposite directions.

5. An inertial container according to claim 1, characterized in that, The clamping nut (2) and the clamping spring (3) constitute the pre-tightening mechanism of the friction-type rotating inertial container. The clamping nut (2) rotates under the control of the ECU (18) to achieve axial movement. The compression amount of the clamping spring (3) changes, and the contact pressure and friction between the friction wheel (5) and the active end cover are adjusted under the action of the spring force.

6. The inertial container according to claim 1, characterized in that, The clamping nut (2) is threadedly engaged with the input shaft thread (30), and the thread profile, pitch, and direction of rotation are consistent.

7. An inertial container according to claim 1, characterized in that, The compression spring (3) is a cylindrical helical spring.

8. An inertial container according to claim 1, characterized in that, When the friction wheel steering mechanism assembly (6) drives the friction wheel (5) to rotate around the support axis, the distance from the friction wheel (5) to the contact point of the friction surface inside the active end cover (4) and the driven end cover (7) to the input shaft (1) and the output shaft (17) changes and is no longer equal, thus realizing the stepless change of the transmission ratio between the input shaft (1) and the output shaft (17) and realizing the continuous adjustment of the rotational inertia.

9. An inertial container according to claim 1, characterized in that, The friction wheel (5), the inner friction surface (12) of the flywheel, the first flywheel friction disc (26), the second flywheel friction disc (28), and the inner friction surfaces of the active end cover (4) and the driven end cover (7) have a large coefficient of friction in order to meet the working requirements and consider the manufacturing cost. Therefore, the material is selected as copper-based powder metallurgy.

10. An inertial container according to claim 4, characterized in that, The flywheel engagement assembly (13) can move along the output shaft axis under the control of the ECU (18), driving the first flywheel friction disc (26) and the second flywheel friction disc (28) at both ends to fit with the flywheel internal friction surface (12) inside the first flywheel (11) and the second flywheel (14) respectively, driving flywheels of different sizes to rotate synchronously with the output shaft, so as to realize the variable inertial mass coefficient of the inertial container.

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