Method for measuring torque and rotating speed of ultra-high-speed high-energy rotor in load state

Abstract

The invention relates to the field of high-energy rotor measurement, in particular to a method for measuring the torque and the rotating speed of an ultra-high-speed high-energy rotor in a load state. S1, connection; s2, planetary gear connection; s3, rotating speed; s4, reducing the speed; and S5, braking. Various input and output conditions are set, high-speed reduction acting on a load is realized through a planetary gear reducer, accurate and feasible measurement of high energy and high rotation is realized through a specially designed non-contact double-conical-surface torque sensor, and a conical screw tensioning form of the double-conical-surface torque sensor is one of key points for preparing a stable test. The whole measuring process is simple in structure, data transmission is analog quantity, almost no delay exists, and nanosecond-level information delay can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-energy rotor measurement, and specifically to a method for measuring torque and rotational speed of a super-high-speed high-energy rotor under a load state. Background Art

[0002] Currently, there are various products with rotors that can operate at a super-high speed of at least more than 30,000 revolutions per minute. The rotating components at high rotational speeds are subject to the fact that conventional large-torque testing equipment cannot withstand the measurement environment of high rotational speeds and high torques. It is difficult to stop the high-energy rotor equipment, and there is a certain risk.

[0003] Conventional torque testing tools generally cannot measure products with a rotational speed above 8,000 revolutions per minute. After the product's rotational speed increases, the energy it possesses is extremely large, and it will become a high-speed high-energy rotor. The present invention can improve the accuracy and response time of rotational speed and torque for high-speed high-energy rotors during measurement, and reduce the working risk of high-energy rotors during the measurement process. Summary of the Invention

[0004] To solve the above problems, the present invention proposes a method for measuring torque and rotational speed of a super-high-speed high-energy rotor under a load state.

[0005] A method for measuring torque and rotational speed of a super-high-speed high-energy rotor under a load state, the specific steps are as follows;

[0006] S1. Connection: Fix the product to be measured on a movable product fixing base and connect it to a planetary gear reducer;

[0007] S2. Planetary gear connection: The planetary gear reducer is connected to the main flywheel;

[0008] S3. Rotational speed: Set the output end of the product to be measured to a super-high rotational speed and medium torque, and measure the torque through a double conical surface torque sensor;

[0009] S4. Speed reduction: Reduce the super-high rotational speed of the product to a medium-high rotational speed through a planetary gear reducer, and load it onto the main flywheel, and perform load measurement through a bearingless torque measuring device;

[0010] S5. Braking: A coil is wound inside the main flywheel, and braking is performed through an electromagnetic method to enable long-term use of the testing equipment without wear.

[0011] Furthermore, a bearing base is provided at the bottom end of the product fixing base.

[0012] Furthermore, in step S1, the output shaft of the product to be measured needs to be connected to the product connector by a spline or a clutch, and then connected to the planetary gear reducer through the input end of the planetary gear reducer.

[0013] Further, the main flywheel in step S2 is fixed by several groups of flywheel load fixing brackets.

[0014] Further, the double conical surface torque sensor in step S3 realizes non-contact sensing torque through rotational excitation, and the rotational speed realizes rotational counting through the principle of tone wheel rotational speed sensing.

[0015] Further, a variable flywheel load and a flywheel hysteresis brake for controlling the rotational speed are arranged at the rear end of the main flywheel.

[0016] The beneficial effects of the present invention are as follows:

[0017] The present invention sets various input and output conditions to achieve high-speed reduction acting on the load through a planetary gear reducer, and realizes accurate feasibility determination of high energy and high rotation through a specially designed non-contact double conical surface torque sensor. The conical screw tensioning form of the double conical surface torque sensor is one of the key points for preparing stable tests. The entire determination process has a simple structure, and the data transmission is analog, with almost no delay, and can achieve information delay at the nanosecond level. Description of the Drawings

[0018] The present invention will be further described below with reference to the drawings and embodiments.

[0019] Figure 1 is the front view structural schematic diagram of the present invention;

[0020] Figure 2 is the internal structural schematic diagram of the bearingless torque measuring device of the present invention;

[0021] Reference Signs:

[0022] 1, bearing base; 2, product fixing seat; 3, bearingless torque measuring device;

[0023] 3-1, product connector; 3-2, double conical surface torque sensor; 3-3, sensor tensioning shaft; 3-4, input end of planetary gear reducer;

[0024] 4, planetary gear reducer; 5, flywheel load fixing bracket; 6, main flywheel; 7, variable flywheel load; 8, flywheel hysteresis brake. Detailed Embodiments

[0025] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below.

[0026] As Figure 1 and Figure 2 shown, a method for measuring torque and rotational speed of a super-high-speed and high-energy rotor under a load state specifically comprises the following steps;

[0027] S1. Connection: Fix the product to be tested on the movable product fixing base 2 and connect it to the planetary gear reducer 4;

[0028] S2. Planetary gear connection: Connect the planetary gear reducer 4 to the main flywheel 6;

[0029] S3. Rotation speed: Set the output end of the product to be tested to ultra-high speed and medium torque. Measure the torque through the double conical surface torque sensor 3-2. The power source driving the product will cause the speed increase process of the product to be extremely fast;

[0030] S4. Speed reduction: Reduce the ultra-high speed of the product to a medium-high speed through a planetary gear reducer 4 and load it on the main flywheel 6. Realize the measurement under load through the bearingless torque measuring device 3;

[0031] S5. Braking: The load is the actual inertial physical quantity, which is convenient for subsequent accurate calculation of various data. A coil is wound inside the main flywheel 6, and braking is carried out by electromagnetic means to continuously consume the rotational energy of the product and finally stop. Due to non-contact braking, the testing equipment can be used without wear for a long time.

[0032] In practical applications, a bearing base 1 is provided at the bottom end of the product fixing base 2 of the present invention, and the two are in sliding fit.

[0033] Specifically, in step S1, the output shaft of the product to be measured needs to be connected to the product connector 3-1 by spline or clutch, and then connected to the planetary gear reducer 4 through the input end 3-4 of the planetary gear reducer. Set various input and output conditions to realize the high-speed reduction acting on the load through the planetary gear reducer 4, and realize the accurate feasibility measurement of high energy and high rotation through the specially designed non-contact double conical surface torque sensor 3-2.

[0034] The main flywheel 6 in step S2 is fixed by several groups of flywheel load fixing brackets 5.

[0035] The double conical surface torque sensor 3-2 in step S3 realizes non-contact sensing torque through rotary excitation, and the rotation speed realizes rotation counting through the sound wheel rotation sensing principle.

[0036] Furthermore, a sensor tensioning shaft 3-3 is also provided on the double conical surface torque sensor 3-2 of the present invention. The conical screw tensioning form of the double conical surface torque sensor 3-2 is one of the key points for preparing stable testing. The whole measurement process has a simple structure, the data transmission is analog, and there is almost no delay, and the information delay at the nanosecond level can be realized.

[0037] A variable flywheel load 7 and a flywheel hysteresis brake 8 are provided at the rear end of the main flywheel 6 to control the speed.

[0038] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A method for measuring the torque and rotational speed of a super-high-speed and high-energy rotor under a load state, characterized in that: The specific steps are as follows; S1. Connection: Fix the product to be tested on the movable product fixing seat (2) and connect it to the planetary gear reducer (4); S2. Planetary gear connection: Connect the planetary gear reducer (4) to the main flywheel (6); S3. Rotation speed: Set the output end of the product to be tested to ultra-high speed and medium torque, and measure the torque through the double-cone surface torque sensor (3-2); S4. Speed reduction: Reduce the ultra-high speed of the product to a medium-high speed through a planetary gear reducer (4), and load it on the main flywheel (6), and realize load measurement through the bearingless torque measuring device (3); S5. Braking: A coil is wound inside the main flywheel (6), and braking is performed electromagnetically to enable the long-term use of the test equipment without wear.

2. A method for measuring the torque and speed of a super-high-speed and high-energy rotor under a load state according to claim 1, characterized in that: A bearing base (1) is provided at the bottom end of the product fixing seat (2).

3. A method for measuring torque and rotational speed of a super-high-speed and high-energy rotor under a load state according to claim 1, characterized in that: In step S1, the output shaft of the product to be tested needs to be connected to the product connector (3-1) by spline or clutch, and then connected to the planetary gear reducer (4) through the input end (3-4) of the planetary gear reducer.

4. A method for measuring the torque and rotational speed of a super-high-speed and high-energy rotor under a load state according to claim 1, characterized in that: The main flywheel (6) in step S2 is fixed by several groups of flywheel load fixing brackets (5).

5. A method for measuring torque and rotational speed of a super-high-speed and high-energy rotor under a load state according to claim 1, characterized in that: The double-cone surface torque sensor (3-2) in step S3 realizes non-contact sensing torque through rotational excitation, and the rotation speed realizes rotation counting through the tachogenerator rotation speed sensing principle.

6. A method for measuring the torque and rotational speed of a super-high-speed and high-energy rotor under a load state according to claim 1, characterized in that: A variable flywheel load (7) and a flywheel hysteresis brake (8) for controlling the rotation speed are provided at the rear end of the main flywheel (6).

Images