Novel housing coaxiality detection device

Abstract

The invention provides a novel shell coaxiality detection device, which comprises a shell, insert ball bearings and a guide head, the shell is a cylindrical shell, one or more mounting windows are arranged on the shell, one or more measuring instruments are correspondingly arranged in the shell, a plurality of insert ball bearings are arranged on the outer wall of the shell, and the guide head and an aviation plug are respectively arranged at two ends of the shell. The beneficial effects of the invention are that the device is high in flexibility, can adapt to cases of different sizes and shapes, and can meet different measurement requirements. Meanwhile, the method has high applicability, and can be used for specific industries or applications, such as motor casings, deep-well pump motor casings and the like, so as to meet specific measurement requirements. The device has a data output function and can output a measurement result in an electronic form, so that subsequent analysis and recording are facilitated. On the basis, a high-precision digital measurement technology is adopted in the scheme, so that the measurement accuracy is ensured, and the measurement efficiency and precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary tooling for producing submersible motors, and more specifically to a novel housing coaxiality detection device. Background Art

[0002] In the production process of submersible pump shafts, the coaxiality of the laminations in the motor housing directly affects the motor assembly and motor performance. Excessive coaxiality will cause excessive motor vibration and noise, and the motor may even stop spinning in severe cases. There was no special detection device, and the coaxiality was entirely guaranteed by the processing technology and the workers' processing level. In order to avoid the motor performance being affected by excessive coaxiality, it is necessary to design a motor stator coaxiality detection device to detect the coaxiality of the housing in advance. Summary of the invention

[0003] The invention overcomes the shortcomings of the prior art and provides a novel housing coaxiality detection device.

[0004] The purpose of the present invention is achieved through the following technical solutions.

[0005] A novel casing coaxiality detection device comprises: a casing, an outer spherical ball bearing and a guide head. The casing is a cylindrical casing, one or more installation windows are arranged on the casing, one or more measuring instruments are arranged correspondingly in the casing, multiple outer spherical ball bearings are arranged on the outer wall of the casing, and a guide head and an aviation plug are respectively arranged at both ends of the casing.

[0006] The measuring instrument includes: a mounting base, a contact sensor and a linkage detection head. The mounting base is fixedly connected to the inside of the shell, the mounting base is provided with a contact sensor and a linkage detection head, the contact sensor is matched with the aviation plug, the connecting plate of the linkage detection head is rotatably connected to the mounting base, an elastic part is nested outside the probe of the contact sensor, the probe end of the contact sensor is contacted with the connecting plate of the linkage detection head, the probe of the contact sensor and the linkage detection head are vertically arranged at 90 degrees, and the two ends of the elastic part are respectively fixedly connected to the connecting plate of the linkage detection head and the mounting base.

[0007] The elastic member is a spring.

[0008] A counterweight is provided at the bottom of the shell.

[0009] The number of counterweights is 3.

[0010] The beneficial effects of the present invention are:

[0011] This solution is highly flexible and can adapt to housings of different sizes and shapes, as well as different measurement requirements. At the same time, it has high applicability and can be used in specific industries or applications, such as motor housings, deep well pump motor housings, etc., to meet specific measurement needs. The device has a data output function and can output the measurement results in electronic form for subsequent analysis and recording. On this basis, this solution uses high-precision digital measurement technology to ensure the accuracy of the measurement and improve the efficiency and accuracy of the measurement. Furthermore, a special structural design is adopted and high-precision bearings are used to reduce vibration and deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 is a cross-sectional view of the present invention;

[0014] Figure 3 It is a structural schematic diagram of Example 2;

[0015] Figure 4 It is the structural diagram of the measuring instrument;

[0016] In the figure: 1, shell; 101, installation window; 2, outer spherical ball bearing; 3, guide head; 4, measuring instrument; 401, installation base; 402, contact sensor; 403, linkage detection head; 404, elastic part; 405, connecting plate; 5, aviation plug; 6, counterweight. DETAILED DESCRIPTION

[0017] Example 1

[0018] A novel housing coaxiality detection device is characterized in that it includes: a housing 1, an outer spherical ball bearing 2 and a guide head 3. The housing 1 is a cylindrical housing 1. One or more installation windows 101 are provided on the housing 1. One or more measuring instruments 4 are correspondingly provided in the housing 1. Multiple outer spherical ball bearings 2 are provided on the outer wall of the housing 1. The guide head 3 and the aviation plug 5 are respectively provided at both ends of the housing 1.

[0019] like Figure 1 and Figure 2 As shown, the working principle of the present invention is as follows. The housing 1 is positioned by the guide head 3. Entering the inner hole of the submersible motor stator to be tested, when the motor stator rotates, the outer ring of the outer spherical ball bearing 2 and the motor stator rotate at the same time, and the inner ring of the outer spherical ball bearing 2 does not rotate. The measuring instrument 4 always keeps the downward state to measure the runout value of the inner ring of the motor stator.

[0020] Example 2

[0021] like Figure 3 and Figure 4As shown, based on Example 1, in order to solve the problem of limited inner hole diameter of the shell 1, the measuring instrument 4 is improved to make it more compact.

[0022] The measuring instrument 4 includes: a mounting base 401, a contact sensor 402 and a linkage detection head 403. The mounting base 401 is fixedly connected to the inside of the shell 1, and the mounting base 401 is provided with a contact sensor 402 and a linkage detection head 403. The contact sensor 402 is connected to the aviation plug in cooperation, and the connecting plate 405 of the linkage detection head 403 is rotatably connected to the mounting base 401. An elastic member 404 is nested outside the probe of the contact sensor 402, and the probe end of the contact sensor 402 is in contact with the connecting plate 405 of the linkage detection head 403. The probe of the contact sensor 402 is vertically arranged at 90° to the linkage detection head 403, and the two ends of the elastic member 404 are respectively fixedly connected to the connecting plate 405 of the linkage detection head 403 and the mounting base 401.

[0023] The linkage detection head 403 extends out of the housing 1 and contacts the object to be tested. The linkage detection head 403 tilts according to the internal structure of the object to be tested to drive the connection plate 405 to move, so that the probe of the contact sensor 402 can realize the detection function. The above structure realizes the function of converting the rotation amount of the linkage detection head 403 into the displacement amount of the head end of the contact sensor 402, so as to detect the coaxiality of the point. Among them, the elastic member 404 is used for resetting to keep the linkage detection head 403 in its original state.

[0024] Preferably, the elastic member 404 is a spring.

[0025] Furthermore, when the housing 1 rotates, the probe of the linkage detection head 403 contacts the inner hole wall of the housing 1, generating a certain amount of friction. Therefore, when the probe is located at a position with a low coaxiality, the friction will increase. At this time, the probe will drift as the housing 1 rotates, causing disorder in the test data. In order to solve the above problem, a counterweight 6 is provided at the bottom of the housing 1. The number of counterweights 6 is 3, which is more preferred.

[0026] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A new type of housing coaxiality detection device, characterized in that: include: The shell is a cylindrical shell with one or more installation windows, one or more measuring instruments are correspondingly arranged in the shell, multiple spherical ball bearings are arranged on the outer wall of the shell, and the guide head and the navigation plug are respectively arranged at both ends of the shell.

2. A novel housing coaxiality detection device according to claim 1, characterized in that: The measuring instrument comprises: a mounting base, a contact sensor and a linkage detection head. The mounting base is fixedly connected to the inside of the shell, the mounting base is provided with a contact sensor and a linkage detection head, the contact sensor is cooperatively connected to the aviation plug, the connecting plate of the linkage detection head is rotatably connected to the mounting base, an elastic member is nested outside the probe of the contact sensor, the probe end of the contact sensor is contacted with the connecting plate of the linkage detection head, the probe of the contact sensor and the linkage detection head are vertically arranged at 90 degrees, and the two ends of the elastic member are respectively fixedly connected to the connecting plate of the linkage detection head and the mounting base.

3. A novel housing coaxiality detection device according to claim 2, characterized in that: The elastic member is a spring.

4. A novel housing coaxiality detection device according to claim 1, characterized in that: A counterweight is provided at the bottom of the shell.

5. A novel housing coaxiality detection device according to claim 1, characterized in that: The number of the counterweights is 3.

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