Torque-limiting deceleration permanent magnet synchronous frequency conversion and speed regulation all-in-one machine

Abstract

The utility model discloses a torque limiting type deceleration permanent magnet synchronous frequency conversion and speed regulation all-in-one machine which comprises a permanent magnet motor, a gear transmission mechanism, a hydraulic control system, a frequency converter, a controller and an adjustable liquid viscosity distance limiting device. Wherein the permanent magnet motor is connected with the adjustable liquid viscosity distance limiting device through the gear transmission mechanism; the frequency converter is used for controlling the permanent magnet motor. The motor is an electromechanical liquid combined intelligent product, and is compact in structure, light in weight, good in driving power balance performance, strong in heavy load starting capability, high in safety and reliability, green, environment-friendly, energy-saving and efficient.

Description

Technical Field

[0001] This utility model belongs to the technical field of permanent magnet synchronous variable frequency speed control integrated machine, and particularly relates to a torque-limiting type deceleration permanent magnet synchronous variable frequency speed control integrated machine. Background Technology

[0002] The permanent magnet synchronous variable frequency speed control integrated machine is a high-efficiency and energy-saving equipment in industrial production. It integrates a permanent magnet synchronous motor, frequency converter and control system to achieve precise speed regulation and high-efficiency energy conversion.

[0003] Traditional hydraulic motor systems generate significant torque pulsations during operation, which can lead to unstable equipment operation, affect equipment accuracy and lifespan, and result in relatively low efficiency and significant energy loss. This is especially true in throttling speed control systems, where pressure and flow losses are substantial, resulting in low overall system efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a torque-limiting, decelerating permanent magnet synchronous variable frequency speed control integrated machine to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A torque-limiting type decelerated permanent magnet synchronous variable frequency speed control integrated machine includes a permanent magnet motor, a gear transmission mechanism, a hydraulic control system, a frequency converter, a controller, and an adjustable hydraulic viscosity limiting device; wherein,

[0006] The permanent magnet motor is connected to the adjustable liquid viscosity limiting device through a gear transmission mechanism.

[0007] The frequency converter is used to control the permanent magnet motor;

[0008] The controller is used to collect the input and output speed of the equipment, the pressure and temperature of the hydraulic control system, and the current and voltage parameters of the permanent magnet motor.

[0009] The hydraulic control system is used to execute commands sent by the controller;

[0010] The adjustable liquid viscosity limiting device is located between the output of the drive unit and the load of the scraper conveyor.

[0011] Preferably, the hydraulic control system is provided with two working pressures.

[0012] Preferably, the adjustable liquid viscosity limiting device is provided with two pressures, namely the working pressure P1 and the forced pressure P2.

[0013] Preferably, the permanent magnet motor is equipped with an oil level screw plug.

[0014] Preferably, the permanent magnet motor is provided with an outlet and an inlet on one side.

[0015] Preferably, a lifting ring is provided at the top of the permanent magnet motor.

[0016] The torque-limiting, decelerating permanent magnet synchronous variable frequency speed control integrated machine of this utility model has the following advantages:

[0017] 1. This utility model is an intelligent product that combines electromechanical and hydraulic systems. It has a compact structure, light weight, good drive power balance performance, strong heavy-load starting capability, high safety and reliability, and is green, environmentally friendly, energy-saving and efficient.

[0018] 2. This utility model provides instantaneous overload protection for the reducer through a built-in torque limiting device, similar to a hydraulic coupler. It utilizes the low-speed, high-torque characteristics of a permanent magnet motor and works in conjunction with a brake to achieve an intelligent chain tightening function, eliminating the need for a traditional hydraulic motor system. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the adjustable liquid viscosity limiting device in this utility model;

[0022] Figure 3 This is a schematic diagram of the lifting ring structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the oil level screw plug in this utility model.

[0024] The markings in the diagram are as follows: 1. Permanent magnet motor; 2. Gear transmission mechanism; 3. Hydraulic control system; 4. Frequency converter; 5. Controller; 6. Adjustable fluid viscosity limiting device; 7. Oil level plug; 8. Water outlet; 9. Water inlet; 10. Lifting ring. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0026] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0029] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0030] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a torque-limiting, decelerating permanent magnet synchronous variable frequency speed control integrated machine.

[0031] like Figure 1-4As shown, this utility model discloses a torque-limiting, decelerated permanent magnet synchronous variable frequency speed control integrated machine, including a permanent magnet motor 1, a gear transmission mechanism 2, a hydraulic control system 3, a frequency converter 4, a controller 5, and an adjustable hydraulic viscosity limiting device 6. The permanent magnet motor 1 is connected to the adjustable hydraulic viscosity limiting device 6 via the gear transmission mechanism 2, and the torque is transmitted to the output planetary mechanism via the gear transmission mechanism 2. The planetary mechanism is connected to the adjustable hydraulic viscosity limiting device 6, and the final output is connected to the load. The frequency converter 4 is used to control the permanent magnet motor 1, and the stepless frequency regulation of the frequency converter 4 enables soft starting of the equipment. When multiple machines operate in tandem, the frequency converters 4 and controllers 5 communicate with each other to achieve logical start / stop and power balance of the equipment. Controller 5 is used to collect parameters such as the input and output speed of the equipment, the pressure and temperature of the hydraulic control system 3, and the current and voltage of the permanent magnet motor 1. According to different operating states, it can send different execution logic to the hydraulic control system 3 and frequency converters 4 to achieve soft start, forced operation, chain tightening, normal shutdown, emergency shutdown, overload protection, and fault recording. The hydraulic control system 3 is equipped with two working pressures. The hydraulic control system 3 is used to execute commands sent by controller 5 to adjust the adjustable viscous torque limiting device 6 to normal operation, forced operation, and unloading states. The adjustable viscous torque limiting device 6 is set between the output of the drive unit and the load of the scraper conveyor, which can eliminate all impact loads and overloads transmitted to the drive unit. It provides mechanical protection for all components of the drive unit transmitted from the load side. The adjustable viscous torque limiting device 6 is equipped with two pressures, one is the working pressure P1, and the other is the forced pressure P2. When the adjustable viscous torque limiting device 6 is working at P1, it can eliminate loads other than the planned output torque. When the adjustable viscous torque limiting device 6 operates at P2, the viscous torque limiting can meet the requirement of approximately 2.5 times the rated torque. At this time, the protection function is decided by the frequency converter 4. When the conveyor needs to tighten the chain, the frequency converter 4 controls the permanent magnet motor 1 to achieve low-speed, high-torque operation. After reaching the set conditions, the drive will be locked to prevent accidents during chain tightening. The permanent magnet motor 1 is equipped with an oil level plug 7. An outlet 8 and an inlet 9 are respectively provided on one side of the permanent magnet motor 1, and a lifting ring 10 is provided at the top of the permanent magnet motor 1.

[0032] The working principle of this torque-limiting type permanent magnet synchronous variable frequency speed control integrated machine is as follows: It consists of a permanent magnet motor 1, a gear transmission mechanism 2, a hydraulic control system 3, a frequency converter 4, a controller 5, and an adjustable hydraulic torque-limiting device 6. The built-in torque-limiting device provides instantaneous overload protection for the reducer, similar to a hydraulic coupling. This integrated machine also has a data acquisition device for equipment status monitoring, which can monitor data such as temperature, speed, and oil level. Utilizing the low-speed, high-torque characteristics of the permanent magnet motor, and in conjunction with a brake, it achieves an intelligent chain-tightening function, eliminating the need for a traditional hydraulic motor system.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A torque-limited type speed-reducing permanent magnet synchronous variable frequency speed regulation all-in-one machine, characterized in that: Including permanent magnet motor (1), gear transmission mechanism (2), hydraulic control system (3), frequency converter (4), controller (5) and adjustable liquid viscosity limit distance device (6), wherein, The permanent magnet motor (1) is connected with the adjustable liquid viscosity limit distance device (6) through the gear transmission mechanism (2); The frequency converter (4) is used for controlling the permanent magnet motor (1); The controller (5) is used for collecting the input and output rotating speed of the equipment, the pressure and temperature of the hydraulic control system (3) and the current and voltage parameters of the permanent magnet motor (1); The hydraulic control system (3) is used for executing according to the instruction sent by the controller (5); The adjustable liquid viscosity limit distance device (6) is arranged between the output of the driving part and the scraper machine load.

2. The speed reduction permanent magnet synchronous variable frequency speed regulation all-in-one machine of claim 1, characterized in that: The hydraulic control system (3) is provided with two working pressures.

3. The speed reduction permanent magnet synchronous variable frequency speed regulation all-in-one machine of claim 1, characterized in that: The adjustable liquid viscosity limit distance device (6) is provided with two pressures, which are working pressure P1 and forced pressure P2 respectively.

4. The speed reduction permanent magnet synchronous variable frequency speed regulation all-in-one machine of claim 1, characterized in that: The permanent magnet motor (1) is provided with an oil level screw plug (7) inside.

5. The speed reduction permanent magnet synchronous variable frequency speed regulation all-in-one machine of claim 1, characterized in that: One side of the permanent magnet motor (1) is provided with a water outlet (8) and a water inlet (9) respectively.

6. The speed reduction permanent magnet synchronous variable frequency speed regulation all-in-one machine of claim 1, characterized in that: The top end of the permanent magnet motor (1) is provided with an eye ring (10).

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