Inductance measuring device for complex morphology of large rotary equipment

Abstract

The invention discloses a large rotary equipment complex morphology inductance measuring device based on a steering tip stability maintaining technology, belongs to the technical field of precision measurement, and solves the problem that when an existing sensor is used for measuring the complex morphology of large rotary equipment, a tail end contact is unstable in the steering process, so that precision measurement cannot be achieved. Comprising a first motor, a connecting workpiece, a connecting arm, a second motor and a sensing device, the first motor is fixed to the connecting workpiece, the connecting workpiece is provided with a connecting structure connected with a mechanical arm of the operating system, a motor shaft of the first motor is fixedly connected with the head end of the connecting arm, the tail end of the connecting arm is fixedly connected with the second motor, and the sensing device is fixedly connected with a motor shaft of the second motor. The detection end of the sensing device is located on the straight line where the axis of the motor shaft of the second motor is located, and the detection end of the sensing device is located on the straight line where the axis of the motor shaft of the first motor is located. The method is suitable for complex morphology measurement scenes of large rotary equipment.

Description

Technical Field

[0001] This invention belongs to the field of precision measurement technology, specifically relating to a measuring instrument for the complex three-dimensional shape of a rotating device. Background Technology

[0002] Traditional inductive sensors can usually only perform single-dimensional, single-direction measurements, making it difficult to meet the measurement needs of complex morphology on the surface of large rotating equipment.

[0003] In existing technologies, sensors face several challenges when measuring the surfaces of large rotating equipment. Traditional inductive sensors are typically designed as unidirectional measuring tools, which prove inadequate when measuring complex shapes. Furthermore, since the surfaces of large rotating equipment are usually curved, it is difficult for the sensor to maintain the stability of its end contact point during rotation, leading to inaccurate measurement results.

[0004] In existing technologies, some sensors improve measurement flexibility by adding steering joints; however, these sensors still suffer from unstable end-point contacts during steering. Therefore, a new technology is needed that can achieve accurate three-dimensional measurement of complex morphologies on the surface of large rotating equipment while maintaining the stability of the end-point contacts. Summary of the Invention

[0005] This invention provides an inductive measurement device for complex shapes of large rotating equipment based on steering tip stability holding technology. Its purpose is to solve the problems that existing sensors can only achieve single-dimensional and single-direction measurement, and that the end contact is unstable during the steering process when measuring the complex shapes of large rotating equipment, thus resulting in inaccurate measurement.

[0006] The large rotary equipment complex morphology inductive measurement device proposed in this invention includes: a first motor, a connecting workpiece, a connecting arm, a second motor, and a sensing device; The first motor is fixedly mounted on the connecting workpiece, which is provided with a connecting structure that connects to the robotic arm of the measuring device's operating system. The motor shaft of the first motor is fixedly connected to the head end of the connecting arm, and the tail end of the connecting arm is fixedly connected to the second motor. The sensing device is fixedly connected to the motor shaft of the second motor, and the detection end of the sensing device is located on the straight line of the axis of the second motor's motor shaft and the detection end of the sensing device is located on the straight line of the axis of the first motor's motor shaft.

[0007] Furthermore, a preferred embodiment is provided: the sensing device includes a sensor for measuring the shape of a large rotating equipment and a sensor fixture, the sensor fixture being cylindrical and coaxially fixedly connected to the motor shaft of the second motor, and the sensor being detachably mounted on the sensor fixture.

[0008] Furthermore, a preferred embodiment is provided: the sensor is an inductive sensor, the inductive sensor is provided with a measuring rod, the outer end of the measuring rod serves as the detection end of the sensing device, and the measuring rod is coaxial with the motor shaft of the second motor.

[0009] Furthermore, a preferred embodiment is provided: the motor shaft of the first motor and the motor shaft of the second motor are in the same plane.

[0010] Furthermore, a preferred embodiment is provided: the first motor is mounted on the connecting workpiece via a first motor mounting workpiece.

[0011] Furthermore, a preferred embodiment is provided: the second motor 6 is fixedly connected to the end of the connecting arm via the second motor mounting workpiece.

[0012] Furthermore, a preferred embodiment is provided: the first motor is equipped with a first motor reducer.

[0013] Furthermore, a preferred embodiment is provided: the first motor reducer is a harmonic reducer.

[0014] Furthermore, a preferred embodiment is provided: the second motor is equipped with a second motor reducer.

[0015] Furthermore, a preferred option is provided: the second motor reducer is a harmonic reducer.

[0016] Compared with the prior art, the advantages of the present invention are: The device described in this invention adds two steering joints to keep the sensor end contact point stable during steering, thereby achieving high-precision three-dimensional measurement of the complex surface morphology of large rotating equipment.

[0017] Compared to traditional single-direction measuring tools, the device proposed in this invention significantly improves measurement accuracy. Traditional inductive sensors often require orientation adjustments during multiple measurements, while the device described in this invention, through a steering tip stabilization technique, ensures that the end contact remains stationary during steering, thereby reducing measurement energy consumption and improving energy efficiency.

[0018] This invention features a simple design, and the flexibility of the steering joint makes the instrument more agile and convenient in practical use. Operators can more easily perform measurements in different directions without having to frequently adjust the sensor's orientation. Because this invention can acquire three-dimensional data in a single measurement, it significantly improves measurement efficiency and reduces measurement time costs compared to traditional methods.

[0019] By employing a steering tip stabilization technology, this invention effectively solves the problem of unstable end-contact points of the sensor during steering, ensuring the reliability and stability of measurement results. Because this invention utilizes steering tip stabilization technology, the number of sensor components is reduced, thereby lowering manufacturing costs and saving raw materials.

[0020] Through the above-mentioned effects, the present invention effectively overcomes the problems of single-direction measurement and unstable end contact during turning in the prior art, and provides an efficient, accurate and energy-saving solution for inductance measurement of complex surface morphology of large rotating equipment.

[0021] This invention is applicable to complex topographic measurement scenarios for large rotating equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the complex morphology inductive measuring device for large rotary equipment based on the steering tip stabilization and holding technology according to a specific embodiment of the present invention. In the diagram, 1 is the first motor, 2 is the connecting workpiece, 3 is the workpiece mounted on the first motor, 4 is the connecting arm, 5 is the workpiece mounted on the second motor, 6 is the second motor, 7 is the sensor fixture, and 8 is the sensor. Figure 2 This is a side view assembly diagram of the measuring device according to a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the measurement posture as described in the second specific embodiment of the present invention. Detailed Implementation

[0023] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of this application with unnecessary detail.

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Implementation Method 1: Reference Figure 1 , Figure 2 This implementation method is described below.

[0026] A complex-shaped inductive measuring device for large rotary equipment includes: a first motor 1 (or inclined joint motor), a connecting workpiece 2, a connecting arm 4 (or joint connecting arm), a second motor 6 (or straight joint motor), and a sensing device. The first motor 1 is fixedly mounted on the connecting workpiece 2. The connecting workpiece 2 is provided with a connecting structure that connects to the robotic arm of the measuring device's operating system. The motor shaft of the first motor 1 is fixedly connected to the head end of the connecting arm 4, and the tail end of the connecting arm 4 is fixedly connected to the second motor 6. The sensing device is fixedly connected to the motor shaft of the second motor 6. The detection end of the sensing device is located on the straight line where the axis of the motor shaft of the second motor 6 is located, and the detection end of the sensing device is located on the straight line where the axis of the motor shaft of the first motor 1 is located.

[0027] like Figure 1 , Figure 2 As shown, in the complex-shaped inductance measuring device for large rotating equipment described in this embodiment, the motor shaft of the second motor 6 is arranged vertically.

[0028] The sensing device includes a sensor for measuring the shape of a large rotating equipment and a sensor fixture 7. The sensor fixture 7 is columnar and is coaxially fixedly connected to the motor shaft of the second motor 6. The sensor is detachably mounted on the sensor fixture 7.

[0029] The sensor is an inductive sensor 8, which is equipped with a measuring rod. The outer end of the measuring rod serves as the detection end of the sensing device, and the measuring rod is coaxial with the motor shaft of the second motor 6.

[0030] The motor shaft of the first motor 1 and the motor shaft of the second motor 6 are in the same plane.

[0031] The first motor 1 is mounted on the connecting workpiece 2 via the first motor mounting workpiece 3. Specifically, the first motor 1 is fixed to the first motor mounting workpiece 3, and the connecting workpiece 2 is rigidly connected to the outer side wall of the inclined joint motor mounting workpiece 3.

[0032] The second motor 6 is fixedly connected to the end of the connecting arm 4 via the second motor mounting workpiece 5. Specifically, the second motor 6 is fixed to the second motor mounting workpiece 5, and the end of the connecting arm 4 is fixed to the outer side wall of the second motor mounting workpiece 5.

[0033] The first motor is equipped with a first motor reducer, which is a harmonic reducer; The second motor 6 is equipped with a second motor reducer, which is a harmonic reducer.

[0034] The connecting arm 4 is bent and has a D-shaped connecting hole at its head end; the D-shaped connecting hole is fixed by a set screw; the motor shaft of the first motor 1 and the motor shaft of the second motor 6 are connected through the D-shaped connecting hole.

[0035] Implementation Method Two: Reference Figure 3 This implementation method is described below.

[0036] This embodiment is a further illustrative example of the complex topography inductance measurement device for large rotating equipment based on steering tip stability holding technology described in Embodiment 1.

[0037] In the device described in this embodiment, the center of the sensor probe ball is always on the axis of the inclined joint motor. The second motor (i.e., the straight joint motor) can drive the inductive sensor to rotate around its own axis to change the direction of the lateral force on the probe. The first motor (i.e., the inclined joint motor) can change the position and orientation of the inductive sensor in space. The linkage of the two joints can realize the three-dimensional measurement of the probe in space.

[0038] like Figure 3 As shown, the basic measurement posture for measuring a point on a complex surface using the aforementioned measuring device is described, with state a representing the measurement of the horizontal plane. x , y Directional data, state b is the measured vertical direction. z The data, when combined, yields the measured value of this point in three-dimensional space. Specifically: When the inductive sensor is in a vertical position, it can measure the horizontal displacement by rotating itself, starting from the measured position. x The value of the direction is A, measured by rotating 90 degrees around its own axis. y The direction value is B; when the inductive sensor is in a horizontal state, the vertical displacement can be measured. z The value of the direction is C. Since the contact ball maintains a constant spatial position during rotation, the values ​​measured in all directions are based on the same reference. Therefore, the coordinates at this point can be obtained as {A, B, C}.

[0039] The measuring device adds two steering joints to the front end of the sensor, ensuring the stability of the sensor's end contact point during steering. The steering joints employ stabilization devices to ensure sufficient stability during measurement. Simultaneously, an electrically driven steering mechanism is used, with the motor controlling the sensor's rotation around itself, allowing the sensor to flexibly steer in three-dimensional space. The motor is controlled by a controller, enabling automated measurement.

Claims

1. A device for measuring the inductance of complex shapes in large rotating equipment, characterized in that, include: First motor (1), connecting workpiece (2), connecting arm (4), second motor (6) and sensing device; The first motor (1) is fixedly installed on the connecting workpiece (2). The connecting workpiece (2) is provided with a connecting structure that connects to the mechanical arm of the operating system of the measuring device. The motor shaft of the first motor (1) is fixedly connected to the head end of the connecting arm (4). The end of the connecting arm (4) is fixedly connected to the second motor (6). The sensing device is fixedly connected to the motor shaft of the second motor (6). The detection end of the sensing device is located on the straight line where the axis of the motor shaft of the second motor (6) is located. The detection end of the sensing device is located on the straight line where the axis of the motor shaft of the first motor (1) is located.

2. The inductance measuring device for complex shapes of large rotating equipment according to claim 1, characterized in that, The sensing device includes a sensor for measuring the shape of a large rotating equipment and a sensor fixture (7). The sensor fixture (7) is columnar and is coaxially fixedly connected to the motor shaft of the second motor (6). The sensor is detachably mounted on the sensor fixture (7).

3. The inductance measuring device for complex shapes of large rotating equipment according to claim 2, characterized in that, The sensor is an inductive sensor (8), which is provided with a measuring rod. The outer end of the measuring rod serves as the detection end of the sensing device. The measuring rod is coaxial with the motor shaft of the second motor (6).

4. The inductance measuring device for complex shapes of large rotating equipment according to claim 1, characterized in that, The motor shaft of the first motor (1) and the motor shaft of the second motor (6) are in the same plane.

5. The inductance measuring device for complex shapes of large rotating equipment according to claim 1, characterized in that, The first motor (1) is mounted on the connecting workpiece (2) via the first motor mounting workpiece (3).

6. The inductance measuring device for complex shapes of large rotating equipment according to claim 1, characterized in that, The second motor (6) is fixedly connected to the end of the connecting arm (4) by mounting the workpiece (5) on the second motor.

7. The inductance measuring device for complex shapes of large rotating equipment according to claim 1, characterized in that, The first motor is equipped with a first motor reducer.

8. The inductance measuring device for complex shapes of large rotating equipment according to claim 7, characterized in that, The first motor reducer is a harmonic reducer.

9. The inductance measuring device for complex shapes of large rotating equipment according to claim 1, characterized in that, The second motor (6) is equipped with a second motor reducer.

10. The inductance measuring device for complex shapes of large rotating equipment according to claim 9, characterized in that, The second motor reducer is a harmonic reducer.

Images