Waist wheel rotor detection device and detection method

Abstract

The present application provides a detection device and method for a lumbar rotor, and relates to the technical field of detection equipment. Among them, the lumbar rotor detection device includes a base and a detection component. The lumbar rotor to be tested can be set at the bearing part of the base. After the lumbar rotor to be tested is set at the bearing part, the height of the first part of the lumbar rotor to be tested relative to the reference plane, and the height of the second part of the lumbar rotor to be tested relative to the reference plane can be obtained through the detection component. The height of the first part of the lumbar rotor to be tested relative to the reference plane, and the height of the second part of the lumbar rotor to be tested relative to the reference plane are substituted into the formula. In this way, the eccentricity between the center axis of the lumbar groove of the lumbar rotor to be tested and the center axis of the rotating shaft of the lumbar rotor to be tested can be obtained, making the process of obtaining the eccentricity between the center axis of the lumbar groove of the lumbar rotor to be tested and the center axis of the rotating shaft of the lumbar rotor to be tested simple and convenient, thereby greatly improving the preparation efficiency of the lumbar rotor to be tested.

Description

Technical Field

[0001] The present application relates to a detection device and a detection method for a lumbar rotor, and belongs to the technical field of detection equipment. Background Art

[0002] The gas impeller flowmeter is mainly composed of a shell, an impeller rotor, a counter and an intelligent flow converter. A pair of impeller rotors installed in the metering chamber maintain the correct relative position of the rotors through precision-machined adjustment gears under the action of the inlet and outlet pressure difference of the circulating gas (Pin>Pout). Every time the rotor rotates one circle, it outputs gas four times the effective volume of the metering chamber. The number of revolutions of the rotor is transmitted to the intelligent flow converter through the magnetic sealing coupling device and the reduction mechanism, thereby displaying the cumulative volume of the output gas. If the distance between the center axis of the waist-shaped groove of the impeller rotor and the center axis of the rotating shaft is too large, the metering accuracy of the gas impeller flowmeter will be poor. Therefore, when preparing the impeller rotor, it is necessary to accurately control the eccentricity of the impeller rotor.

[0003] At present, the three-coordinate method is mainly used to detect the eccentricity of the lumbar rotor. However, the detection efficiency of the three-coordinate method is low and cannot meet the needs of mass production of lumbar rotors. Summary of the invention

[0004] The present application provides a detection device and method for a lumbar wheel rotor, which solves the problem of complex eccentricity detection methods for lumbar wheel rotors in related technologies.

[0005] In a first aspect, the present application provides a waist wheel rotor detection device, comprising:

[0006] A base, including a reference surface and a bearing portion for bearing the waist wheel rotor;

[0007] A detection component is arranged on the base. When the lumbar rotor is arranged on the bearing portion, the axis of the rotating shaft of the lumbar rotor is parallel to the reference plane. The detection component is configured to detect the height of the first portion of the lumbar rotor relative to the reference plane, and the height of the second portion of the lumbar rotor relative to the reference plane.

[0008] The waist wheel rotor comprises a waist-shaped groove, the first part and the second part are located on the inner wall of the waist-shaped groove, and the first part and the second part are located on opposite sides of a preset plane, and the distance between the first part and the preset plane is the same as the distance between the second part and the preset plane;

[0009] Wherein, the preset plane is perpendicular to the reference plane, and the preset plane passes through the central axis of the rotating shaft.

[0010] In some embodiments, the number of the first parts and the second parts are at least two, at least two of the first parts are spaced apart along the axial direction of the waist-shaped groove, at least two of the second parts are spaced apart along the axial direction of the waist-shaped groove, and at least two of the first parts correspond to at least two of the second parts.

[0011] In some embodiments, among at least two of the first parts and at least two of the second parts, one of the first parts and a corresponding one of the second parts constitute a detection part group, the number of the detection part groups is at least two, the detection component includes a plurality of detection parts, the plurality of detection parts are arranged at intervals along the axial direction of the waist-shaped groove, and the plurality of detection parts are configured to respectively detect the height of the first parts in at least two of the detection part groups relative to the reference plane, and the height of the second parts relative to the reference plane.

[0012] In some embodiments, the detection member is a micrometer, and the detection member includes a detection end;

[0013] When the waist wheel rotor is disposed at the bearing portion, the detection end abuts against the first portion or the second portion.

[0014] In some embodiments, the reference plane is located above the bearing part, a mounting hole is formed in the reference plane, the detection component further includes a body, the detection end is connected to the body, the detection end is passed through the mounting hole, and the body is located above the reference plane.

[0015] In some embodiments, the lumbar rotor detection device further includes a limiter, which is disposed on the base and configured to limit the two ends of the lumbar rotor on the axis of the rotating shaft.

[0016] In some embodiments, the limiting member includes two limiting portions, and the two limiting portions are arranged on the base. When the lumbar rotor is arranged at the bearing portion, the two limiting portions and the two ends of the lumbar rotor on the axis of the rotating shaft are abutted against each other.

[0017] In some embodiments, the base and the two limiting portions are surrounded to form a fixing groove, the bearing portion is located in the fixing groove, and when the pulley rotor is disposed at the bearing portion, at least a portion of the pulley rotor is located in the fixing groove.

[0018] In some embodiments, the base includes a limiting surface, which is located in the fixing groove. When the pulley rotor is located at the bearing position, the limiting surface limits the pulley rotor in a direction parallel to the reference plane and perpendicular to the axis of the rotating shaft.

[0019] In some embodiments, the limiting portion further includes a positioning surface located on one side of the notch of the fixing groove, and when the pulley rotor is disposed at the bearing portion, the rotating shaft of the pulley rotor abuts against the positioning surface.

[0020] In a second aspect, the present application provides a method for detecting a lumbar wheel rotor, comprising:

[0021] Set the under-tested lumbar rotor on the reference plane;

[0022] Obtaining a height of a first portion of the measured lumbar rotor relative to a reference plane, and a height of a second portion of the measured lumbar rotor relative to the reference plane;

[0023] The waist wheel rotor comprises a waist-shaped groove, the first part and the second part are located on the inner wall of the waist-shaped groove, and the first part and the second part are located on opposite sides of a preset plane, and the distance between the first part and the preset plane is the same as the distance between the second part and the preset plane;

[0024] Wherein, the preset plane is perpendicular to the reference plane, and the preset plane passes through the central axis of the rotating shaft;

[0025] According to the formula: , obtaining the eccentricity between the projection of the central axis of the waist-shaped groove of the waist-shaped rotor to be tested on the reference plane and the projection of the central axis of the rotating shaft on the reference plane;

[0026] Wherein, L is the eccentricity between the projection of the middle axis of the waist-shaped groove of the waist-shaped rotor to be measured on the reference plane and the projection of the middle axis of the rotating shaft on the reference plane, is the height of the first part relative to the reference plane, is the height of the second portion relative to the reference plane, R is the radius of the circle where the waist-shaped groove is located, and d is the diameter of the rotating shaft.

[0027] In some embodiments, according to the formula: , obtaining the eccentricity between the projection of the central axis of the waist-shaped groove of the waist-shaped rotor to be tested on the reference plane and the projection of the central axis of the rotating shaft on the reference plane, including:

[0028] According to the formula: , obtaining the eccentricity between the projection of the central axis of the waist-shaped groove of the waist-shaped rotor to be tested on the reference plane and the projection of the central axis of the rotating shaft on the reference plane;

[0029] in, is the eccentricity between the projection of the center axis of the waist-shaped groove of the measured waist-shaped rotor on the reference plane and the projection of the center axis of the rotating shaft on the reference plane, is the height of the first part of the measured waist-wheel rotor relative to the reference plane, is the height of the second part of the measured lumbar rotor relative to the reference plane, is the height of the first part of the reference wheel rotor relative to the reference plane, is the height of the second part of the reference wheel rotor relative to the reference plane, The eccentricity between the projection of the center axis of the waist-shaped groove of the reference waist rotor on the reference plane and the projection of the center axis of the rotating shaft on the reference plane, The value ranges from -1.22 to -0.76.

[0030] In the rotary rotor detection device provided in the present application, the rotary rotor to be tested can be arranged at the bearing part of the base. After the rotary rotor to be tested is arranged at the bearing part, the height of the first part of the rotary rotor to be tested relative to the reference plane and the height of the second part of the rotary rotor to be tested relative to the reference plane can be obtained through the detection component. Substituting the height of the first part of the rotary rotor to be tested relative to the reference plane and the height of the second part of the rotary rotor to be tested relative to the reference plane into the formula In this way, the eccentricity between the center axis of the waist-shaped groove of the waist-wheel rotor to be tested and the center axis of the rotating shaft of the waist-wheel rotor to be tested can be obtained, making the process of obtaining the eccentricity between the center axis of the waist-shaped groove of the waist-wheel rotor to be tested and the center axis of the rotating shaft of the waist-wheel rotor to be tested simple and convenient, thereby greatly improving the preparation efficiency of the waist-wheel rotor to be tested. And the waist-wheel rotor detection device of the present application has a simple structure and is easy to prepare.

[0031] The lumbar rotor detection method provided in the present application can be applied to the above-mentioned lumbar rotor detection device. The detection method obtains the height of the first part of the lumbar rotor to be tested relative to the reference plane and the height of the second part of the lumbar rotor to be tested relative to the reference plane through the lumbar rotor detection device. Substituting the above-mentioned multiple parameters into the formula In this way, when detecting the eccentricity between the center axis of the waist-shaped groove of the tested lumbar rotor and the center axis of the rotating shaft of the tested lumbar rotor, it is only necessary to detect the values ​​of two parts of the tested lumbar rotor to obtain the eccentricity, making the lumbar rotor detection process simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic diagram of a lumbar rotor detection device according to an embodiment of the present application;

[0034] Figure 2It is a front view schematic diagram of the waist wheel rotor of the embodiment of the present application;

[0035] Figure 3 It is a schematic diagram of the first part of the lumbar rotor detected by the lumbar rotor detection device according to an embodiment of the present application;

[0036] Figure 4 It is a schematic diagram of the lumbar rotor detection device of the embodiment of the present application detecting the second part of the lumbar rotor;

[0037] Figure 5 It is a schematic diagram of the lumbar rotor detection device of the embodiment of the present application detecting at least two first parts of the lumbar rotor;

[0038] Figure 6 A schematic diagram of a base of a waist wheel rotor detection device according to an embodiment of the present application from one viewing angle;

[0039] Figure 7 This is a schematic diagram of the base of the waist wheel rotor detection device according to an embodiment of the present application from another perspective;

[0040] Figure 8 This is a flow chart of a method for detecting a lumbar rotor according to an embodiment of the present application;

[0041] Fig. 9 It is a schematic diagram of a pulley rotor to be tested in the pulley rotor detection method according to an embodiment of the present application.

[0042] Reference numerals:

[0043] 100-base, 110-fixing slot, 111-bearing part, 120-reference surface, 130-mounting hole, 140-fixing hole, 150-limiting surface,

[0044] 200-detection component, 210-detection piece, 211-detection end, 220-meter body,

[0045] 300-waist wheel rotor, 310-waist groove, 311-first part, 312-second part, 320-rotating shaft, 330-fixing through hole,

[0046] 400 - limiting member, 410 - limiting portion, 411 - positioning surface. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0048] The gas impeller flowmeter is mainly composed of a shell, an impeller rotor, a counter and an intelligent flow converter. A pair of impeller rotors installed in the metering chamber maintain the correct relative position of the rotors through precision-machined adjustment gears under the action of the inlet and outlet pressure difference of the circulating gas (Pin>Pout). Every time the rotor rotates one circle, it outputs gas four times the effective volume of the metering chamber. The number of revolutions of the rotor is transmitted to the intelligent flow converter through the magnetic sealing coupling device and the reduction mechanism, thereby displaying the cumulative volume of the output gas. If the distance between the center axis of the waist-shaped groove of the impeller rotor and the center axis of the rotating shaft is too large, the metering accuracy of the gas impeller flowmeter will be poor. Therefore, when preparing the impeller rotor, it is necessary to accurately control the eccentricity of the impeller rotor.

[0049] At present, the three-coordinate method is mainly used to detect the eccentricity of the lumbar rotor. However, the detection efficiency of the three-coordinate method is low and cannot meet the needs of mass production of lumbar rotors.

[0050] In the rotary rotor detection device proposed in the present application, the rotary rotor to be tested can be arranged at the bearing part of the base. After the rotary rotor to be tested is arranged at the bearing part, the height of the first part of the rotary rotor to be tested relative to the reference plane and the height of the second part of the rotary rotor to be tested relative to the reference plane can be obtained through the detection component. Substituting the height of the first part of the rotary rotor to be tested relative to the reference plane and the height of the second part of the rotary rotor to be tested relative to the reference plane into the formula In this way, the eccentricity between the center axis of the waist-shaped groove of the waist-wheel rotor to be tested and the center axis of the rotating shaft of the waist-wheel rotor to be tested can be obtained, making the process of obtaining the eccentricity between the center axis of the waist-shaped groove of the waist-wheel rotor to be tested and the center axis of the rotating shaft of the waist-wheel rotor to be tested simple and convenient, thereby greatly improving the preparation efficiency of the waist-wheel rotor to be tested. And the waist-wheel rotor detection device of the present application has a simple structure and is easy to prepare.

[0051] The lumbar rotor detection method proposed in this application can be applied to the above-mentioned lumbar rotor detection device. The detection method obtains the height of the first part of the lumbar rotor to be tested relative to the reference plane, the height of the second part of the lumbar rotor to be tested relative to the reference plane, the height of the first part of the reference lumbar rotor relative to the reference plane, and the height of the second part of the reference lumbar rotor relative to the reference plane through the lumbar rotor detection device. Substituting the above-mentioned multiple parameters into the formula In this way, when detecting the eccentricity between the center axis of the waist-shaped groove of the tested lumbar rotor and the center axis of the rotating shaft of the tested lumbar rotor, it is only necessary to detect the values ​​of two parts of the tested lumbar rotor to obtain the eccentricity, making the lumbar rotor detection process simple and efficient.

[0052] The following is a detailed description of the pulley rotor detection device and method provided in the present application in conjunction with specific embodiments.

[0053] refer to Figures 1 to 4 As shown, the present application proposes a lumbar rotor detection device, including a base 100 and a detection assembly 200. The detection device can be applied to a lumbar rotor 300 detection method.

[0054] Among them, the base 100 is the basic component of the detection device of the lumbar rotor 300 of the present application. The base 100 can provide a mounting base for at least some of the other components of the detection device of the lumbar rotor 300, and protect at least some of the other components. The base 100 can be made of metal material, so that the base 100 has better structural strength, thereby making the durability and reliability of the base 100 better. Of course, the base 100 can also be made of polymer material, so that the base 100 has a certain structural strength and is relatively light in weight.

[0055] The base 100 includes a bearing portion 111 for bearing the pulley rotor 300. The pulley rotor 300 can be fixed on the bearing portion 111 of the base 100 so that the pulley rotor 300 and the base 100 can be relatively fixed. In this way, the pulley rotor 300 can remain stable to improve the detection accuracy of the pulley rotor 300.

[0056] The waist wheel rotor 300 includes a rotor body and a rotating shaft 320. The rotor body is a waist-shaped structure. A waist-shaped groove 310 is provided on the rotor body. The waist-shaped groove 310 is located in the middle of the rotor body. The rotor body is also provided with fixing through holes 330 located on both sides of the waist-shaped groove 310. The two fixing through holes 330 are symmetrically arranged along the center of the rotor body. The base 100 includes a reference plane 120. The connecting line of the central axes of the two fixing through holes 330 is parallel to the reference plane 120. The rotating shaft 320 is arranged in the middle of the rotor body. The direction of the axis of the rotating shaft 320 is consistent with the direction of the axis of the waist-shaped groove 310, and the axis of the rotating shaft 320 is also parallel to the reference plane 120. Under ideal conditions, the projection of the center axis of the rotating shaft 320 on the reference plane 120 should coincide with the projection of the center axis of the waist-shaped groove 310 on the reference plane 120. However, due to the limitations of the current manufacturing process, there may be a certain deviation between the projection of the center axis of the rotating shaft 320 on the reference plane 120 and the projection of the center axis of the waist-shaped groove 310 on the reference plane 120. The distance between the projection of the center axis of the waist-shaped groove 310 on the reference plane 120 and the projection of the center axis of the waist-shaped groove 310 on the reference plane 120 is the eccentricity between the projection of the center axis of the waist-shaped groove 310 on the reference plane 120 and the projection of the center axis of the rotating shaft 320 on the reference plane 120.

[0057] The lumbar rotor 300 further includes a first portion 311 and a second portion 312, both of which are located on the inner wall of the lumbar groove 310 of the lumbar rotor 300 and are distributed on the inner walls on both sides of the lumbar groove 310. Specifically, the first portion 311 and the second portion 312 are located on both sides of a preset plane, which is a plane passing through the central axis of the lumbar groove 310 and perpendicular to the reference plane 120. The preset plane is Figure 3 and Figure 4 The distance between the first portion 311 and the preset plane is the same as the distance between the second portion 312 and the preset plane. When the lumbar rotor 300 is disposed on the bearing portion 111, the detection assembly 200 is configured to detect the height of the first portion 311 relative to the reference plane 120, and to detect the height of the second portion 312 relative to the reference plane 120.

[0058] After obtaining the height of the first portion 311 of the tested lumbar rotor 300 relative to the reference plane 120 and the height of the second portion 312 of the tested lumbar rotor 300 relative to the reference plane 120 through the lumbar rotor 300 detection device of the present application, the height of the first portion 311 of the tested lumbar rotor 300 relative to the reference plane 120 and the height of the second portion 312 of the tested lumbar rotor 300 relative to the reference plane 120 can be substituted into the following formula: .in, is the eccentricity between the central axis of the waist-shaped groove 310 of the waist-wheel rotor 300 to be tested and the central axis of the rotating shaft 320, is the height of the first portion 311 of the tested lumbar rotor 300 relative to the reference plane 120, is the height of the second portion 312 of the under-tested lumbar rotor 300 relative to the reference plane 120, is the height of the first part of the reference wheel rotor relative to the reference plane 120, is the height of the second part of the reference wheel rotor relative to the reference plane 120, The eccentricity between the center axis of the waist-shaped groove of the reference waist-wheel rotor and the center axis of its rotating shaft, The value ranges from -1.22 to -0.76.

[0059] Of course, it should be understood that in order to obtain the height of the first portion 311 relative to the reference plane 120 and the height of the second portion 312 relative to the reference plane 120, the heights of the first portion 311 and the second portion 312 relative to other components can also be detected by the detection component 200, and the height of the first portion 311 relative to the reference plane 120 and the height of the second portion 312 relative to the reference plane 120 can be calculated. The present application does not limit the specific method of obtaining the height of the first portion 311 relative to the reference plane 120 and the height of the second portion 312 relative to the reference plane 120.

[0060] It should be understood that the eccentricity between the center axis of the waist-shaped groove of the reference waist-wheel rotor and the center axis of its rotating shaft is a known value, and the eccentricity between the center axis of the waist-shaped groove of the reference waist-wheel rotor and the center axis of its rotating shaft can be obtained by other means, specifically, the eccentricity between the center axis of the waist-shaped groove of the reference waist-wheel rotor and the center axis of its rotating shaft can be obtained by the three-coordinate method. In this way, the above-mentioned multiple parameters are substituted into the formula: After that, the eccentricity between the center axis of the waist-shaped groove 310 of the waist-wheel rotor 300 to be tested and the center axis of its rotating shaft 320 can be obtained.

[0061] Specifically, when a plurality of the tested lumbar rotors 300 are tested by the lumbar rotor testing device of the present application, the height of the first portion of the reference lumbar rotor relative to the reference plane 120 and the height of the second portion of the reference lumbar rotor relative to the reference plane 120 can be tested by the lumbar rotor testing device. Then, the tested lumbar rotor 300 can be set on the rotation portion 111 of the base 100, and the height of the first portion 311 of the tested lumbar rotor 300 relative to the reference plane 120 and the height of the second portion 312 of the tested lumbar rotor 300 relative to the reference plane 120 can be obtained, and the above-mentioned multiple parameters can be substituted into the formula: After that, the eccentricity between the center axis of the waist-shaped groove 310 of the tested waist-wheel rotor 300 and the center axis of its rotating shaft 320 can be obtained. When testing different waist-wheel rotors 300 to be tested, it is only necessary to test the height of the first part 311 of the different waist-wheel rotors 300 to be tested relative to the reference plane 120, and the height of the second part 312 of the different waist-wheel rotors 300 to be tested relative to the reference plane 120, so as to obtain the eccentricity between the center axis of the waist-shaped groove 310 of the tested waist-wheel rotor 300 and the center axis of its rotating shaft 320, which greatly improves the efficiency of testing the eccentricity between the center axis of the waist-shaped groove 310 of the tested waist-wheel rotor 300 and the center axis of its rotating shaft 320, thereby greatly improving the preparation efficiency of the waist-wheel rotor 300.

[0062] In some embodiments, reference Figure 1 and Figure 5 As shown, it should be understood that the waist-shaped groove 310 of the waist-wheel rotor 300 to be tested is a groove-shaped structure extending along the axis of the rotating shaft 320. Accordingly, the waist-shaped groove 310 has different parts adjacent to the two ends of the rotating shaft 320. Due to the processing technology of the waist-wheel rotor 300, the different parts of the waist-shaped groove 310 in the axial direction may also have deviations from each other along the corresponding central axis. In order to further improve the structural accuracy of the waist-wheel rotor 300, the waist-wheel rotor 300 of the present application can be provided with at least two first parts 311 and at least two second parts 312, at least two first parts 311 are distributed along the axial direction of the waist-shaped groove 310, at least two second parts 312 are also distributed along the axial direction of the waist-shaped groove 310, and at least two first parts 311 and at least two second parts 312 are arranged in a one-to-one correspondence.

[0063] Specifically, one of the at least two first parts 311 can form a detection part group with a corresponding second part 312, so that the number of detection part groups is also at least two. The first part 311 and the second part 312 in any detection part group are both located on the inner wall of the waist-shaped groove 310 of the waist-wheel rotor 300, and are distributed on the inner walls on both sides of the waist-shaped groove 310. Correspondingly, at least two detection part groups are also distributed along the axial direction of the waist-shaped groove 310, and the first part 311 and the second part 312 in at least two detection part groups can correspond to different parts of the axis of the waist-shaped groove 310.

[0064] When the lumbar rotor 300 is disposed on the bearing portion 111, the detection assembly 200 is configured to detect the height of the first portion 311 in any detection portion group relative to the reference plane 120, and the height of the second portion 312 relative to the reference plane 120. That is, the detection assembly 200 can detect the heights of multiple first portions 311 relative to the reference plane 120, and detect the heights of multiple second portions 312 relative to the reference plane 120. Thus, by substituting the heights of multiple first portions 311 relative to the reference plane 120, and the heights of multiple second portions 312 relative to the reference plane 120 into the formula: Afterwards, the eccentricity between the central axis of the waist-shaped groove 310 and the central axis of the rotating shaft 320 at various positions in its extension direction can be obtained, so that the structural precision of the waist-wheel rotor 300 can be more fully detected, thereby further improving the preparation precision of the waist-wheel rotor 300 during the preparation process.

[0065] In some embodiments, reference Figure 1 and Figure 2 As shown, in order to enable the detection component 200 to detect the height of the first part 311 in the multiple detection part groups relative to the reference plane 120, and the height of the second part 312 relative to the reference plane 120, the detection component 200 can be provided with a plurality of detection members 210. The plurality of detection members 210 can correspond to the plurality of detection part groups of the lumbar rotor 300, and the plurality of detection members 210 are configured to respectively detect the height of the first part 311 in the multiple detection part groups relative to the reference plane 120, and the height of the second part 312 relative to the reference plane 120. In this way, the detection efficiency of the detection component 200 can be improved, thereby improving the efficiency of detecting the eccentricity between the central axis of the waist-shaped groove 310 of the lumbar rotor 300 and the central axis of the rotating shaft 320 through the lumbar rotor 300 detection device of the present application.

[0066] In some embodiments, reference Figures 3 to 5As shown, in order to enable the detection member 210 of the present application to detect the height of the first portion 311 of the lumbar rotor 300 relative to the reference plane 120, and the height of the second portion 312 relative to the reference plane 120, the detection member 210 can be set as a micrometer. The detection member 210 has a detection end 211, which is the end of the pointer of the micrometer. When the lumbar rotor 300 has not been set on the bearing portion 111 of the base 100, the first portion 311 or the second portion 312 of the lumbar rotor 300 does not contact the detection end 211 of the detection member 210, and the detection end 211 of the detection member 210 is in a natural state. When the lumbar rotor 300 is disposed on the bearing portion 111 of the base 100, the detection end 211 abuts against the first portion 311 or the second portion 312 of the lumbar rotor 300, and the detection end 211 is squeezed by the first portion 311 or the second portion 312 and shrinks, and the distance between the detection end 211 and the reference surface 120 can be changed, so that the detection member 210 can generate a value, which is the height of the first portion 311 relative to the reference surface 120, or the height of the second portion 312 relative to the reference surface 120. In this way, the height of the first portion 311 relative to the reference surface 120, or the height of the second portion 312 relative to the reference surface 120, can be obtained by reading the value of the micrometer, so that the process of obtaining the height of the first portion 311 relative to the reference surface 120 and the height of the second portion 312 relative to the reference surface 120 is simple and convenient. Finally, the efficiency of detecting the eccentricity between the center axis of the waist-shaped groove 310 of the waist-shaped rotor 300 and the center axis of the rotating shaft 320 by the waist-shaped rotor 300 detection device of the present application can be improved.

[0067] It should be understood that the lumbar rotor 300 is a symmetrical structure symmetrical with respect to the central axis of its lumbar groove 310. When the lumbar rotor 300 is disposed at the bearing portion 111 of the base 100, the height of the first portion 311 in the plurality of detection portion groups relative to the reference plane 120 can be detected by the plurality of detection members 210. Subsequently, the lumbar rotor 300 can be rotated 180 degrees and then disposed at the bearing portion 111 of the base 100. At this time, the height of the second portion 312 in the plurality of detection portion groups relative to the reference plane 120 can be detected by the plurality of detection members 210, so that the height of the first portion 311 in the detection portion group relative to the reference plane 120 and the height of the second portion 312 relative to the reference plane 120 can both be detected.

[0068] In some embodiments, reference Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, when the detection member 210 is a micrometer, the detection member 210 also includes a body 220, which is the main structure of the micrometer. In order to enable the detection member 210 to be set on the base 100, the reference surface 120 is provided with a mounting hole 130, and the mounting hole 130 is a through hole. The detection end 211 of the detection member 210 can be inserted into the mounting hole 130, and the body is located above the reference surface 120. Correspondingly, the bearing portion 111 is located below the mounting hole 130. In this way, when the lumbar rotor 300 is set at the bearing portion 111, the detection end 211 of the detection member 210 can face the lumbar rotor 300.

[0069] Specifically, the base 100 may also be provided with a fixing hole 140, which is connected to the mounting hole 130, and the axis of the fixing hole 140 intersects with the axis of the mounting hole 130. When part of the detection member 210 is inserted into the mounting hole 130, the fixing member may pass through the fixing hole 140 and abut against the side wall of the part of the detection member 210 located in the mounting hole 130, thereby fixing the detection member 210 on the base 100. Specifically, the fixing member may be provided as a bolt, and the fixing hole 140 may be provided as a screw hole. Of course, the reference surface 120 of the base 100 may also be provided to support the meter body, so that the detection member 210 may also be fixed on the base 100.

[0070] In some embodiments, in order to ensure that the pulley rotor can remain stable when it is set at the bearing part 111, the pulley rotor detection device of the present application also includes a limit member 400, which is set on the base 100. The limit member 400 is configured to limit the two ends of the pulley rotor 300 on the axis of the rotating shaft 320. In this way, when the pulley rotor 300 is rotated 180 degrees and set at the bearing part 111, the distance between the first part 311 and the second part 312 and the preset plane can be kept consistent.

[0071] In some embodiments, the limiting member 400 may include two limiting portions 410, which are disposed on the base 100. When the lumbar rotor 300 is disposed on the bearing portion 111, the two limiting portions 410 abut against both ends of the lumbar rotor 300 on the axis of the rotating shaft 320. In this way, the two limiting portions 410 can limit the lumbar rotor 300 to between the two limiting portions 410, so that the lumbar rotor 300 remains stable during detection.

[0072] In some embodiments, reference Figure 1 and Figure 7As shown, in order to make the lumbar rotor 300 more stable when it is arranged on the bearing part 111 of the base 100, the base 100 and the two limiting parts 410 can also be surrounded to form a fixing groove 110, and the bearing part 111 is located in the fixing groove 110. Therefore, when the lumbar rotor 300 is arranged on the bearing part 111, at least part of the lumbar rotor 300 is located in the fixing groove 110. Specifically, the groove shape of the fixing groove 110 can match the shape of the lumbar rotor 300, so that when the lumbar rotor 300 is arranged in the fixing groove 110, the outer wall of the lumbar rotor 300 and the bottom wall of the fixing groove 110 are against each other, or there is a small gap. The inner wall of the fixing groove 110 can limit the lumbar rotor 300 to prevent the lumbar rotor 300 from shaking after being arranged on the bearing part 111.

[0073] The base 100 has a limiting surface 150, which is located in the fixing groove 110, and the limiting surface 150 is opposite to the notch of the fixing groove 110. When the lumbar rotor 300 is located at the bearing portion 111, the limiting surface 150 limits the lumbar rotor 300 in a direction parallel to the reference plane 120 and perpendicular to the axis of the rotating shaft 320. Through the cooperation of the limiting surface 150 and the limiting portion 410, the lumbar rotor 300 can be relatively fixed in a direction parallel to the reference plane 120, so that the detection of the lumbar rotor 300 is more accurate.

[0074] In some embodiments, reference Figure 1 and Figure 7 As shown, the limiting portion 410 of the present application may also be provided with a positioning surface 411, and the positioning surface 411 is located on one side of the notch of the fixing groove 110. When the lumbar rotor 300 is arranged on the bearing portion 111, the rotating shaft 320 of the lumbar rotor 300 abuts against the positioning surface 411. In this way, the positioning surface 411 and the rotating shaft 320 can be mutually limited and fixed, so that the lumbar rotor 300 can also be mutually limited and fixed with the positioning surface 411, so that the lumbar rotor 300 is more stable when it is arranged on the bearing portion 111.

[0075] In some embodiments, reference Figure 1 and Figure 7 As shown, since there are two limit parts 410, correspondingly, there are also two positioning surfaces 411, and the two positioning surfaces 411 are located on both sides of the notch of the fixing groove 110. When the lumbar rotor 300 is set on the bearing part 111, the two sides of the rotating shaft 320 of the lumbar rotor 300 respectively abut against the two positioning surfaces 411. In this way, the forces on both sides of the rotating shaft 320 can be balanced, so that the rotating shaft 320 is more stable when abutting against the positioning surfaces 411, thereby making the lumbar rotor 300 more stable when set on the bearing part 111.

[0076] refer to Figure 8As shown, the present application also proposes a method for detecting a lumbar rotor, which can be applied to the lumbar rotor detection device of the present application. The method comprises the following steps:

[0077] S100, the test pulley rotor is placed on the reference plane. At this time, part of the test pulley rotor is located in the fixing groove of the base, and the test pulley rotor can maintain a stable structure.

[0078] S200, obtaining a height difference of a first portion of the measured impeller rotor relative to a reference plane, and a height difference of a second portion of the measured impeller rotor relative to the reference plane.

[0079] S300, according to the first formula, obtaining the eccentricity between the projection of the central axis of the waist-shaped groove of the waist-shaped rotor to be tested on the reference plane and the projection of the central axis of the rotating shaft on the reference plane.

[0080] The first formula is:

[0081] Wherein, L is the eccentricity between the projection of the middle axis of the waist-shaped groove of the waist-shaped rotor to be measured on the reference plane and the projection of the middle axis of the rotating shaft on the reference plane, is the height of the first part relative to the reference plane, is the height of the second part relative to the reference plane, R is the radius of the circle where the waist-shaped groove is located, and d is the diameter of the rotating shaft.

[0082] Specifically, refer to Fig. 9 As shown, M is the center of the axis, MN is the straight line passing through the center of the axis and perpendicular to the reference plane, O is the center of the circle where the waist groove is located, B is the first part, C is the second part, and the straight line AB and the straight line CD are parallel to the reference plane. h is the absolute value of the difference between the height difference between the first part and the reference plane and the height difference between the second part and the reference plane 120.

[0083]

[0084] The above equation can be solved to (A-1)

[0085] For the same type of lumbar rotor, h and the diameter d of the shaft are very different. , , so formula (A-1) can be simplified to (A-2)

[0086] Then h is proportional to the eccentricity L.

[0087] , is the height difference between the first part and the reference surface, is the height difference between the second part and the reference surface, then When positive eccentricity , formula (A-2)

[0088] Transform (A-3)

[0089] It should be understood that in the above formula, the height difference between the first part and the reference plane should be greater than the height difference between the second part and the reference plane. Of course, if the height difference between the second part and the reference plane is greater than the height difference between the first part and the reference plane, the above formula and Replace accordingly.

[0090] In some embodiments, it should be understood that when obtaining the height difference between the first portion and the reference plane, and the height difference between the second portion and the reference plane through the pulley rotor detection device of the present application, the measurement error caused by the error of the device itself needs to be considered, and therefore, the measurement structure needs to be corrected.

[0091] Therefore, step S300 in the present application also includes:

[0092] S310, according to the second formula: , obtain the eccentricity between the projection of the central axis of the waist-shaped groove of the waist-shaped rotor to be tested on the reference plane and the projection of the central axis of the rotating shaft on the reference plane.

[0093] in, is the eccentricity between the projection of the center axis of the waist-shaped groove of the measured waist-shaped rotor on the reference plane and the projection of the center axis of the rotating shaft on the reference plane, is the height of the first part of the measured waist-wheel rotor relative to the reference plane, is the height of the second part of the measured lumbar rotor relative to the reference plane, is the height of the first part of the reference wheel rotor relative to the reference plane, is the height of the second part of the reference wheel rotor relative to the reference plane, The eccentricity between the projection of the center axis of the waist-shaped groove of the reference waist rotor on the reference plane and the projection of the center axis of the rotating shaft on the reference plane, The value ranges from -1.22 to -0.76.

[0094] Specifically, the eccentricity between the projection of the central axis of the waist-shaped groove of the reference lumbar rotor on the reference plane and the projection of the central axis of the rotating shaft on the reference plane can be measured by other testing tools and testing methods, and can be measured by three-coordinate method. The height of the first part of the lumbar rotor to be tested relative to the reference plane, and the height of the second part of the lumbar rotor to be tested relative to the reference plane can be measured by the lumbar rotor detection device of the present application.

[0095] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0096] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0097] It should be easily understood that the terms “on,” “above,” and “over” in this application should be interpreted in the broadest manner, so that “on” means not only “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above something” or “over,” but also may include the meaning of “above something” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0098] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90° or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A lumbar rotor detection device, characterized in that: include: A base, including a reference surface and a bearing portion for bearing the waist wheel rotor; A detection component is arranged on the base. When the lumbar rotor is arranged at the bearing part, the axis of the rotating shaft of the lumbar rotor is parallel to the reference plane. The detection component is configured to detect the height of the first part of the lumbar rotor relative to the reference plane, and the height of the second part of the lumbar rotor relative to the reference plane, and calculate the eccentricity between the projection of the middle axis of the lumbar groove on the reference plane and the projection of the middle axis of the rotating shaft on the reference plane in combination with the radius of the circumference of the lumbar groove of the lumbar rotor and the diameter of the rotating shaft; The waist wheel rotor comprises a waist-shaped groove, the first part and the second part are located on the inner wall of the waist-shaped groove, and the first part and the second part are located on opposite sides of a preset plane, and the distance between the first part and the preset plane is the same as the distance between the second part and the preset plane; Wherein, the preset plane is perpendicular to the reference plane, and the preset plane passes through the central axis of the rotating shaft.

2. The lumbar rotor detection device according to claim 1, characterized in that: The number of the first parts and the second parts is at least two, at least two of the first parts are arranged at intervals along the axial direction of the waist-shaped groove, at least two of the second parts are arranged at intervals along the axial direction of the waist-shaped groove, and at least two of the first parts correspond to at least two of the second parts.

3. The lumbar rotor detection device according to claim 2, characterized in that: Among at least two of the first parts and at least two of the second parts, one of the first parts and a corresponding one of the second parts constitute a detection part group, and the number of the detection part groups is at least two. The detection component includes a plurality of detection parts, and the plurality of detection parts are arranged at intervals along the axial direction of the waist-shaped groove. The plurality of detection parts are configured to respectively detect the height of the first parts in at least two of the detection part groups relative to the reference plane, and the height of the second parts relative to the reference plane.

4. The lumbar rotor detection device according to claim 3, characterized in that: The detection member is a micrometer, and the detection member includes a detection end; When the waist wheel rotor is disposed at the bearing portion, the detection end abuts against the first portion or the second portion.

5. The lumbar rotor detection device according to claim 4, characterized in that: The reference plane is located above the bearing part, and a mounting hole is provided on the reference plane. The detection member also includes a body, and the detection end is connected to the body. The detection end is passed through the mounting hole, and the body is located above the reference plane.

6. The lumbar rotor detection device according to claim 5, characterized in that: The lumbar rotor detection device includes two limit parts, which are arranged on the base. When the lumbar rotor is arranged on the bearing part, the two limit parts abut against both ends of the lumbar rotor on the axis of the rotating shaft.

7. The lumbar rotor detection device according to claim 6, characterized in that: The base and the two limiting parts are surrounded to form a fixing groove, the bearing part is located in the fixing groove, and when the waist wheel rotor is arranged at the bearing part, at least part of the waist wheel rotor is located in the fixing groove.

8. The lumbar rotor detection device according to claim 7, characterized in that: The base includes a limiting surface, which is located in the fixing groove. When the pulley rotor is located at the bearing position, the limiting surface limits the pulley rotor in a direction parallel to the reference plane and perpendicular to the axis of the rotating shaft.

9. The lumbar rotor detection device according to claim 8, characterized in that: The limiting portion further includes a positioning surface located at one side of the notch of the fixing groove. When the waist wheel rotor is arranged at the bearing portion, the rotating shaft of the waist wheel rotor abuts against the positioning surface.

10. A method for detecting a lumbar rotor, characterized in that: Applied to a lumbar rotor detection device, the lumbar rotor detection device includes a base, the base includes a reference surface and a bearing part, and the method includes: The test pulley rotor is arranged on the bearing part of the base; Obtaining a height difference between a first portion of the measured impeller rotor and the reference plane, and a height difference between a second portion of the measured impeller rotor and the reference plane; The waist-wheel rotor to be tested comprises a waist-shaped groove, the first part and the second part are located on the inner wall of the waist-shaped groove, and the first part and the second part are located on opposite sides of a preset plane, and the distance from the first part to the preset plane is the same as the distance from the second part to the preset plane; Wherein, the preset plane is perpendicular to the reference plane, and the preset plane passes through the central axis of the rotating shaft of the waist-wheel rotor to be measured; According to the formula: , obtaining the eccentricity between the projection of the central axis of the waist-shaped groove of the waist-shaped rotor to be tested on the reference plane and the projection of the central axis of the rotating shaft on the reference plane; Wherein, L is the eccentricity between the projection of the middle axis of the waist-shaped groove of the waist-shaped rotor to be measured on the reference plane and the projection of the middle axis of the rotating shaft on the reference plane, is the height of the first portion relative to the reference plane, is the height of the second part relative to the reference plane, R is the radius of the circle where the waist-shaped groove is located, is the diameter of the shaft.

11. The method for detecting a lumbar rotor according to claim 10, characterized in that: According to the formula: , obtaining the eccentricity between the projection of the central axis of the waist-shaped groove of the waist-shaped rotor to be tested on the reference plane and the projection of the central axis of the rotating shaft on the reference plane, including: According to the formula: , obtaining the eccentricity between the projection of the central axis of the waist-shaped groove of the waist-shaped rotor to be tested on the reference plane and the projection of the central axis of the rotating shaft on the reference plane; in, is the eccentricity between the projection of the center axis of the waist-shaped groove of the measured waist-shaped rotor on the reference plane and the projection of the center axis of the rotating shaft on the reference plane, is the height of the first part of the measured waist-wheel rotor relative to the reference plane, is the height of the second part of the measured lumbar rotor relative to the reference plane, is the height of the first part of the reference wheel rotor relative to the reference plane, is the height of the second part of the reference wheel rotor relative to the reference plane, The eccentricity between the projection of the center axis of the waist-shaped groove of the reference waist rotor on the reference plane and the projection of the center axis of the rotating shaft on the reference plane, The value ranges from -1.22 to -0.76.

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