Coaxiality measuring device

Abstract

The utility model provides a coaxiality measuring device, which comprises a supporting seat arranged on a supporting base surface and used for bearing a workpiece to be measured; the lifting component is arranged above the supporting base, the center line of the lifting component is perpendicular to the supporting base plane, and the fixed end of the lifting component is connected with the supporting base; the first end of the connecting part is connected with the liftable end of the lifting part; and the second end of the connecting component is connected with the coaxiality measuring component, so that the problem that the coaxiality measuring device in the prior art has relatively large limitation on the length of a measured object is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coaxiality measurement, in particular to a coaxiality measuring device. Background Art

[0002] Steam turbines are generally installed in accordance with the manufacturer's design instructions and installation manual. One of the main installation requirements is to ensure that the gaps on the left and right sides of the turbine rotor are consistent. Therefore, during the installation and maintenance of large steam turbine units, the coaxiality of the units needs to be measured and debugged to ensure the coaxiality of the units, thereby ensuring that the gaps on the left and right sides of the turbine rotor are consistent.

[0003] However, in actual operation, after the steam turbine was installed and started according to the manufacturer's design instructions and installation and operating manual, it was found that the axis of the rotor would have a certain oblique offset. This resulted in a large difference in the gap between the left and right steam seals after installation. The contact between the rotor blades and the steam seal on one side increased and that on the other side decreased, causing the vibration of the unit to be higher than expected during operation of the turbine, while increasing the steam consumption of the turbine, making it impossible to achieve the optimal operating state.

[0004] Coaxiality measurement refers to a method used to measure the coaxiality error of the measured axis of shaft parts relative to the reference axis. It can perform precise measurements of the roundness, concentricity, circular runout, cross-sectional difference, etc. of shaft parts. With the continuous development of science and technology, coaxiality measuring instruments are becoming more and more widely used, mainly for the detection of rotating shaft parts.

[0005] Existing coaxiality measurement devices still have some shortcomings during use. For example, when inspecting large compressor units, the device is difficult to adjust due to the limited installation location of the equipment. This results in significant limitations on the length of the object being measured, which reduces the device's applicability, accuracy, and maintenance effectiveness. Utility Model Content

[0006] The main purpose of the utility model is to provide a coaxiality measuring device to solve the problem that the coaxiality measuring device in the prior art has a large limitation on the length of the measured object.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a coaxiality measuring device is provided, including: a support seat, the support seat is arranged on a supporting base surface for carrying a workpiece to be measured; a lifting component, the lifting component is arranged above the support seat, the center line of the lifting component is perpendicular to the supporting base surface, and the fixed end of the lifting component is connected to the support seat; a connecting component, the first end of the connecting component is connected to the liftable end of the lifting component; and a coaxiality measuring component, the second end of the connecting component is connected to the coaxiality measuring component.

[0008] Furthermore, the coaxiality measuring device includes a control component, which is disposed on the support seat and electrically connected to the coaxiality measuring component to receive and analyze measurement data from the coaxiality measuring component.

[0009] Furthermore, the coaxiality measuring device includes a first display component, which is arranged on the support seat and electrically connected to the control component to display information to be displayed from the control component.

[0010] Furthermore, the coaxiality measuring device includes a second display component, which is arranged on the support seat and electrically connected to the coaxiality measuring component to display measurement data from the coaxiality measuring component.

[0011] Furthermore, the first end of the connecting component is hinged to the elevating end of the elevating component; and the second end of the connecting component is hinged to the coaxiality measuring component.

[0012] Furthermore, the connecting component includes a first connecting rod and a second connecting rod connected to each other, the first connecting rod and the second connecting rod; the first connecting rod is rotatably arranged around the center line of the lifting component, and the first connecting rod is parallel to the supporting base surface; the second connecting rod is movably arranged along the center line of the first connecting rod and rotatably arranged around the center line of the first connecting rod, the second connecting rod is perpendicular to the supporting base surface, and the second connecting rod is used to connect with the coaxiality measuring component.

[0013] Furthermore, the connecting component includes a third connecting rod, which is connected to the second connecting rod and is rotatably arranged around the center line of the second connecting rod. The third connecting rod is parallel to the supporting base surface, and the end of the third connecting rod is connected to the coaxiality measuring component.

[0014] Furthermore, the lifting component includes a sleeve and a telescopic rod, the lower end of the sleeve is connected to the support seat, and the upper end of the telescopic rod is connected to the first end of the connecting component.

[0015] Furthermore, the lifting component includes a locking member, which is movably provided on the sleeve for abutting against or separating from the telescopic rod to lock or unlock the telescopic rod.

[0016] Furthermore, the coaxiality measuring component includes at least one of a dial indicator, a micrometer and an angular displacement sensor.

[0017] Applying the technical solution of the present invention, the coaxiality measuring device of the present invention includes: a support seat, the support seat is arranged on the support base surface for carrying the workpiece to be measured; a lifting component, the lifting component is arranged above the support seat, the center line of the lifting component is perpendicular to the support base surface, and the fixed end of the lifting component is connected to the support seat; a connecting component, the first end of the connecting component is connected to the liftable end of the lifting component; and a coaxiality measuring component, the second end of the connecting component is connected to the coaxiality measuring component. In this way, the coaxiality measuring device of the present invention can work stably under various working conditions, not only improving the accuracy and efficiency of measurement, but also simplifying the operation process, so that even non-professional operators can quickly master the use method, and the implementation effect is significant. It can effectively reduce the product rejection rate caused by coaxiality error, improve production efficiency and product quality, and is particularly suitable for the coaxiality measurement needs of large parts in industries such as mechanical processing, aerospace, and automobile manufacturing, solving the problem that the coaxiality measuring device in the prior art has a large limitation on the length of the measured object. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 The figure shows a structural diagram of an embodiment of a coaxiality measuring device according to the present utility model.

[0020] The above drawings include the following reference numerals:

[0021] 1. Support seat;

[0022] 2. Lifting component; 21. Sleeve; 22. Telescopic rod; 23. Locking piece;

[0023] 3. Connecting member; 31. First connecting rod; 32. Second connecting rod; 33. Third connecting rod;

[0024] 4. Coaxiality measurement components;

[0025] 5. The workpiece to be measured;

[0026] 6. Control components;

[0027] 7. a first display component;

[0028] 8. Second display component. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] like Figure 1 As shown, the utility model provides a coaxiality measuring device, including: a support seat 1, the support seat 1 is arranged on a supporting base surface for carrying a workpiece 5 to be measured; a lifting component 2, the lifting component 2 is arranged above the support seat 1, the center line of the lifting component 2 is perpendicular to the supporting base surface, and the fixed end of the lifting component 2 is connected to the support seat 1; a connecting component 3, the first end of the connecting component 3 is connected to the liftable end of the lifting component 2; a coaxiality measuring component 4, the second end of the connecting component 3 is connected to the coaxiality measuring component 4.

[0031] In this way, the coaxiality measuring device of the present invention can work stably under various working conditions, which not only improves the accuracy and efficiency of measurement, but also simplifies the operation process, so that even non-professional operators can quickly master the use method. The implementation effect is significant, and it can effectively reduce the product rejection rate caused by coaxiality errors, improve production efficiency and product quality, and is particularly suitable for the coaxiality measurement needs of large parts in mechanical processing, aerospace, automobile manufacturing and other industries, and solves the problem that the coaxiality measuring device in the prior art has a large limitation on the length of the measured object.

[0032] like Figure 1 As shown, the coaxiality measuring device includes a control component 6 , which is disposed on the support base 1 and electrically connected to the coaxiality measuring component 4 to receive and analyze measurement data from the coaxiality measuring component 4 .

[0033] The addition of the control component 6 to the coaxiality measuring device of the present invention increases the degree of automation in the measurement process, reduces errors caused by manual operation, and is suitable for scenarios requiring frequent coaxiality measurements, thereby improving measurement efficiency and quality. In terms of implementation effectiveness, the control component 6 can quickly process and analyze measurement data, generating intuitive measurement reports, allowing operators to promptly understand the coaxiality status of the workpiece and make appropriate adjustments, effectively preventing the accumulation of coaxiality errors during the production process and avoiding the adverse effects of subsequent processing.

[0034] Specifically, the control component 6 may be a programmable logic controller.

[0035] like Figure 1 As shown, the coaxiality measuring device includes a first display component 7 , which is disposed on the support base 1 and electrically connected to the control component 6 to display information to be displayed from the control component 6 .

[0036] The intuitive display of the above-mentioned first display component 7 of the coaxiality measuring device of the present invention facilitates the operator to quickly understand the measurement results and is suitable for rapid on-site detection. The operator can directly obtain the coaxiality status of the workpiece without complicated data analysis, thereby improving work efficiency, reducing production delays caused by data interpretation errors, greatly shortening the interpretation time of the measurement results, and improving test efficiency.

[0037] Specifically, the first display component 7 may be a display screen.

[0038] like Figure 1 As shown, the coaxiality measuring device includes a second display component 8 , which is disposed on the support base 1 and electrically connected to the coaxiality measuring component 4 to display measurement data from the coaxiality measuring component 4 .

[0039] The setting of the above-mentioned second display component of the coaxiality measuring device of the present invention provides direct data feedback, which is convenient for technicians to monitor the coaxiality changes of the workpiece in real time, promptly discover and solve potential processing problems, and avoid unnecessary errors and cost waste.

[0040] Specifically, the second display component 8 may be a display screen.

[0041] like Figure 1 As shown, the first end of the connecting component 3 is hinged to the liftable end of the lifting component 2 ; the second end of the connecting component 3 is hinged to the coaxiality measuring component 4 .

[0042] like Figure 1 As shown, the connecting component 3 includes a first connecting rod 31 and a second connecting rod 32 connected to each other, the first connecting rod 31 and the second connecting rod 32; the first connecting rod 31 is rotatably arranged around the center line of the lifting component 2, and the first connecting rod 31 is parallel to the supporting base surface; the second connecting rod 32 is movably arranged along the center line of the first connecting rod 31 and rotatably arranged around the center line of the first connecting rod 31, the second connecting rod 32 is perpendicular to the supporting base surface, and the second connecting rod 32 is used to connect with the coaxiality measuring component 4.

[0043] like Figure 1 As shown, the connecting component 3 includes a third connecting rod 33, which is connected to the second connecting rod 32 and is rotatably arranged around the center line of the second connecting rod 32. The third connecting rod 33 is parallel to the supporting base surface, and the end of the third connecting rod 33 is connected to the coaxiality measuring component 4.

[0044] The coaxiality measuring device of the present invention is capable of achieving all-round positioning of the measuring component in space by providing the above-mentioned connecting component 3, so as to easily meet the measurement needs of large workpieces, ensure the comprehensiveness and reliability of the measurement results, reduce the measurement difficulty caused by the size and shape of the workpiece, and is suitable for coaxiality measurement of large workpieces, such as the main shaft of a steam turbine, the main shaft of a wind turbine, the propeller shaft of a ship, etc., and has a significant effect on improving product quality and production efficiency.

[0045] like Figure 1 As shown, the lifting component 2 includes a sleeve 21 and a telescopic rod 22 , the lower end of the sleeve 21 is connected to the support base 1 , and the upper end of the telescopic rod 22 is connected to the first end of the connecting component 3 .

[0046] The lifting component 2 of the coaxiality measuring device of the present invention has a simple and reliable structure, is easy to maintain and adjust, is suitable for various working environments, such as workshops, laboratories, etc., and can meet the measurement needs of large workpieces, improves the measurement stability, and simplifies the maintenance and adjustment process, which has a significant effect on reducing production costs and improving product quality.

[0047] like Figure 1 As shown, the lifting component 2 includes a locking member 23 movably provided on the sleeve 21 for abutting against or separating from the telescopic rod 22 to lock or unlock the telescopic rod 22 .

[0048] The coaxiality measuring device of the present invention ensures stability during the measurement process by configuring the lifting component 2 to include a locking member. It is suitable for coaxiality measurement in a variety of environments, reduces measurement errors caused by external interference, improves measurement accuracy, and ensures the accuracy and reliability of measurement data. Especially in scenarios where measurements need to be performed next to running equipment, the advantages of this design are particularly obvious, and it plays an important role in ensuring the normal operation of the equipment and improving product quality.

[0049] Optionally, the coaxiality measuring component 4 includes at least one of a dial indicator, a micrometer and an angular displacement sensor.

[0050] The coaxiality measuring component 4 of the coaxiality measuring device of the present invention adopts the above-mentioned high-precision measuring tools, which can meet the coaxiality measurement requirements of different precision requirements, so that the measuring device can meet the coaxiality measurement requirements of the entire process from rough processing to fine processing, thereby improving production efficiency and product quality, and reducing rework and scrap caused by insufficient measurement accuracy. Especially in the field of precision processing, this device can ensure the high-precision coaxiality of the product, which is of great significance for improving the performance and safety of the product.

[0051] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0052] The coaxiality measuring device of the present invention comprises: a support seat 1, which is arranged on a support base surface for carrying a workpiece 5 to be measured; a lifting component 2, which is arranged above the support seat 1, with the center line of the lifting component 2 perpendicular to the support base surface, and the fixed end of the lifting component 2 connected to the support seat 1; a connecting component 3, with the first end of the connecting component 3 connected to the liftable end of the lifting component 2; and a coaxiality measuring component 4, with the second end of the connecting component 3 connected to the coaxiality measuring component 4. In this way, the coaxiality measuring device of the present invention can work stably under various working conditions, which not only improves the accuracy and efficiency of measurement, but also simplifies the operation process, so that even non-professional operators can quickly master the use method, and the implementation effect is significant. It can effectively reduce the product rejection rate caused by coaxiality error, improve production efficiency and product quality, and is particularly suitable for the coaxiality measurement needs of large parts in industries such as mechanical processing, aerospace, and automobile manufacturing, and solves the problem that the coaxiality measuring device in the prior art has a large limitation on the length of the measured object.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0054] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0055] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0056] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0057] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A coaxiality measuring device, characterized in that: include: A support base (1), the support base (1) being arranged on a supporting base surface and used for carrying a workpiece (5) to be measured; A lifting component (2), the lifting component (2) is arranged above the support seat (1), the center line of the lifting component (2) is perpendicular to the support base surface, and the fixed end of the lifting component (2) is connected to the support seat (1); A connecting component (3), wherein a first end of the connecting component (3) is connected to the elevating end of the elevating component (2); A coaxiality measuring component (4), the second end of the connecting component (3) is connected to the coaxiality measuring component (4).

2. The coaxiality measuring device according to claim 1, characterized in that: The coaxiality measuring device comprises a control component (6), which is arranged on the support seat (1) and electrically connected to the coaxiality measuring component (4) to receive and analyze measurement data from the coaxiality measuring component (4).

3. The coaxiality measuring device according to claim 2, characterized in that: The coaxiality measuring device comprises a first display component (7), which is arranged on the support seat (1) and electrically connected to the control component (6) to display information to be displayed from the control component (6).

4. The coaxiality measuring device according to claim 1, characterized in that: The coaxiality measuring device comprises a second display component (8), which is arranged on the support seat (1) and electrically connected to the coaxiality measuring component (4) to display measurement data from the coaxiality measuring component (4).

5. The coaxiality measuring device according to claim 1, characterized in that: The first end of the connecting component (3) is hinged to the liftable end of the lifting component (2); The second end of the connecting component (3) is hinged to the coaxiality measuring component (4).

6. The coaxiality measuring device according to claim 1, characterized in that: The connecting component (3) comprises a first connecting rod (31) and a second connecting rod (32) connected to each other, wherein the first connecting rod (31) and the second connecting rod (32); The first connecting rod (31) is rotatably arranged around the center line of the lifting component (2), and the first connecting rod (31) is parallel to the supporting base surface; The second connecting rod (32) is movably arranged along the center line of the first connecting rod (31) and rotatably arranged around the center line of the first connecting rod (31), the second connecting rod (32) is perpendicular to the supporting base surface, and the second connecting rod (32) is used to connect with the coaxiality measuring component (4).

7. The coaxiality measuring device according to claim 6, characterized in that: The connecting component (3) includes a third connecting rod (33), which is connected to the second connecting rod (32) and is rotatably arranged around the center line of the second connecting rod (32), the third connecting rod (33) is parallel to the supporting base surface, and the end of the third connecting rod (33) is connected to the coaxiality measuring component (4).

8. The coaxiality measuring device according to claim 1, characterized in that: The lifting component (2) comprises a sleeve (21) and a telescopic rod (22); the lower end of the sleeve (21) is connected to the support seat (1); and the upper end of the telescopic rod (22) is connected to the first end of the connecting component (3).

9. The coaxiality measuring device according to claim 8, characterized in that: The lifting component (2) includes a locking member (23) which is movably arranged on the sleeve (21) for abutting against or separating from the telescopic rod (22) to lock or unlock the telescopic rod (22).

10. The coaxiality measuring device according to any one of claims 1 to 9, characterized in that: The coaxiality measuring component (4) comprises at least one of a dial indicator, a micrometer and an angular displacement sensor.

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