Concentricity detection device for tubular unit

Abstract

The utility model discloses a concentricity detection device for a tubular unit, which belongs to the technical field of concentricity detection devices and comprises a base. The detection assembly is arranged above the base, the detection assembly is provided with a measuring part, and the measuring part can selectively move relative to the base in the length direction and / or the width direction; the horizontal adjusting assembly is connected with the base and provided with an adjusting end, at least part of the adjusting end is located between the base and the detection assembly, and the horizontal adjusting assembly is suitable for adjusting the levelness of the detection assembly. According to the concentricity detection device for the tubular unit, the horizontal adjusting assembly is used, so that the detection assembly is always in a horizontal state, then the concentricity of a servomotor and a control ring guide rail can be measured by moving the detection assembly, and the concentricity detection device is simple to operate and easy to realize; while the concentricity measurement precision of the servomotor and the control ring guide rail is ensured, the efficiency of the measurement work is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of concentricity detection devices, specifically relating to a concentricity detection device for axial flow turbine units. Background Technology

[0002] In related technologies, after prolonged operation of a cross-flow turbine unit, the wear of the control ring's vertical anti-wear plate intensifies, particularly on the downstream side. This is due to the servo drive pushing the control ring eccentrically. In this case, it is necessary to check the concentricity of the servo drive and the control ring guide rail, and adjust their concentricity based on the test results. However, the environment below the guide rail mechanism is complex, the distance between the servo drive and the control ring is considerable, there is no measurement reference point, and no readily available testing equipment is available. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a concentricity detection device for axial-flow turbine units. The concentricity detection device for axial-flow turbine units designed according to this invention, through the use of a horizontal adjustment component, ensures that the detection component is always in a horizontal state. Subsequently, moving the detection component allows for the measurement of the concentricity between the relay and the control ring guide rail. The operation is simple and easy to implement, ensuring the accuracy of the concentricity measurement of the relay and control ring guide rail while improving the efficiency of the measurement work.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a concentricity detection device for a cross-flow turbine unit, comprising: a base; a detection component disposed above the base, the detection component having a measuring part that can selectively move relative to the base in the length and / or width directions; and a horizontal adjustment component connected to the base, the horizontal adjustment component having an adjustment end, at least a portion of which is located between the base and the detection component, the horizontal adjustment component being adapted to adjust the levelness of the detection component.

[0006] According to the present invention, the concentricity detection device for a cross-flow turbine unit can ensure that the detection component is always in a horizontal state by using a horizontal adjustment component. Then, by moving the detection component, the concentricity of the relay and the control ring guide rail can be measured. The operation is simple and easy to implement, which not only ensures the accuracy of the concentricity measurement of the relay and the control ring guide rail, but also improves the efficiency of the measurement work.

[0007] Furthermore, the horizontal adjustment assembly includes: an adjustment bolt, the adjustment bolt being configured as the adjustment end, and multiple adjustment bolts being configured to be spaced apart along the circumference of the base, with the free end of each adjustment bolt being adapted to cooperate with the detection assembly.

[0008] Furthermore, the base is provided with threaded holes corresponding to the plurality of adjusting bolts. Each adjusting bolt includes: an adjusting part located on the side of the base away from the detection component; and a lead screw part connected to the adjusting part, the lead screw part engaging with the corresponding threaded hole, and the free end of the lead screw part extending to abut against the detection component.

[0009] Furthermore, the detection component includes: a mounting base adapted to engage with the free end of the lead screw; an adjusting base movably connected to the mounting base, the adjusting base being selectively movable relative to the mounting base in the width direction; and an infrared meter connected to the adjusting base.

[0010] Furthermore, the mounting base is provided with a slide rail extending in the width direction, and the bottom of the adjusting base is provided with a slide groove, the slide rail and the slide groove being slidably engaged.

[0011] Furthermore, the slide rail is constructed as two slide rails, which are spaced apart in the length direction. Two first fixing members are provided between the two slide rails, which are spaced apart in the width direction. The two first fixing members can be selectively moved relative to the mounting base to fix the adjusting base on both sides in the width direction.

[0012] Furthermore, the mounting base is provided with a first connecting ear, which is disposed between the two slide rails. The first connecting ear is provided with a first through hole, and the inner peripheral wall of the first through hole is provided with a first internal thread. The outer peripheral wall of the first fixing member is provided with a first external thread. The first internal thread and the first external thread cooperate with each other. The two first fixing members respectively abut against the two sides of the adjusting base in the width direction to fix the adjusting base relative to the mounting base.

[0013] Furthermore, the adjusting base is movably provided with second fixing members at both ends in the length direction, and the two second fixing members respectively abut against both ends of the infrared meter in the length direction to fix the infrared meter to the adjusting base.

[0014] Furthermore, the base has multiple support legs on the side opposite to the detection component, and the multiple support legs are spaced apart from each other.

[0015] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0017] Figure 1 This is a schematic diagram of the detection device of this utility model;

[0018] Figure 2 This is a schematic diagram showing the cooperation of the base, mounting base, and adjustment base of this utility model;

[0019] Figure 3 This is a schematic diagram showing the cooperation between the base and the horizontal adjustment component of this utility model.

[0020] The following labels are shown in the attached diagram:

[0021] 1. Detection device;

[0022] 10. Base; 11. Support legs;

[0023] 21. Mounting base; 211. Slide rail; 212. First connecting ear; 213. First fixing member; 22. Adjusting base; 221. Second connecting ear; 222. Second fixing member; 23. Infrared sensor;

[0024] 30. Adjusting bolt; 31. Adjusting part; 32. Lead screw part. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0026] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other instances, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the present invention.

[0027] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0029] Example 1:

[0030] like Figures 1-3 As shown, this utility model provides a concentricity detection device 1 for a cross-flow turbine unit, including: a base 10, a detection component and a horizontal adjustment component. The detection component is disposed above the base 10 and is provided with a measuring part. The measuring part can be selectively moved relative to the base 10 in the length direction and / or width direction. The horizontal adjustment component is connected to the base 10 and is provided with an adjustment end. At least a portion of the adjustment end is located between the base 10 and the detection component. The horizontal adjustment component is adapted to adjust the levelness of the detection component.

[0031] In some embodiments, after prolonged operation of the axial flow turbine unit, the wear of the control ring's vertical anti-wear plate intensifies, particularly on the downstream side. This is because the servo drive pushes the control ring to move eccentrically. In this case, it is necessary to check the concentricity of the servo drive and the control ring guide rail, and adjust their concentricity based on the test results. However, the environment below the guide rail mechanism is complex, the distance between the servo drive and the control ring is considerable, there is no measurement reference point, and no readily available testing equipment is available.

[0032] In some embodiments, the base 10 is the foundation of the entire detection device 1. The base 10 provides a stable support platform, and all other components are mounted on the base 10. The detection component is mounted on the base 10 and includes a measuring part that can measure concentricity. The measuring part can move relative to the base 10 in the length and / or width directions. That is, the detection component can adjust the position of the measuring part as needed to more accurately measure target objects at different positions. The horizontal adjustment component is connected to the base 10, and the adjustment end of the horizontal adjustment component is located between the base 10 and the detection component. The adjustment end can be selectively moved relative to the base 10 in the height direction to adjust the levelness of the detection component and ensure accuracy during the measurement process.

[0033] It should be noted that the measuring unit can move relative to the base 10 in the length direction and / or the width direction. Here, the measuring unit can move relative to the base 10 in the length direction; or it can move relative to the base 10 in the width direction; or the measuring unit can move relative to the base 10 in both the length and width directions. There are no restrictions here.

[0034] It is understood that the working principle of the concentricity detection device 1 of this application is mainly to ensure the concentricity between the detection component and the part to be measured by precisely adjusting the position of the detection component. That is, by allowing the detection component to move in the length and width directions, this application can adapt to target objects of different sizes or positions, thereby improving the applicability and flexibility of the device. Furthermore, by adjusting the level of the detection component through the leveling component, errors caused by uneven ground or other factors can be eliminated, ensuring the accuracy of the measurement results.

[0035] When measuring the concentricity of the relay and the control ring guide rail, first operate the leveling component to level the level of the detection device 1. Then, adjust the vertical line of the detection component to the center line of the control ring. Then, push the detection component to the center line of the relay base 10 in the length and / or width direction. The length of the detection component movement is the measured concentricity difference.

[0036] According to the present invention, the concentricity detection device 1 for a cross-flow turbine unit can ensure that the detection component is always in a horizontal state by using a horizontal adjustment component. Then, by moving the detection component, the concentricity of the relay and the control ring guide rail can be measured. The operation is simple and easy to implement, which ensures the accuracy of the concentricity measurement of the relay and the control ring guide rail while improving the efficiency of the measurement work.

[0037] In some embodiments, the base 10 has a plurality of support legs 11 on the side away from the detection component, and the plurality of support legs 11 are spaced apart from each other.

[0038] Understandably, by setting multiple support legs 11 under the base 10, it can be ensured that the base 10 remains stable on uneven ground. Moreover, multiple support points can better distribute the weight and reduce tilting or swaying caused by uneven ground. Of course, a certain interval is maintained between the support legs 11 to increase the stability of the entire detection device 1 and to adapt to different ground conditions. The multiple support legs 11 set at intervals can also make the detection device 1 more stable in different terrains.

[0039] It is worth mentioning that the detection device 1 is set on an uneven and easily vibrating plane. Therefore, the arrangement of multiple support legs 11 can increase the weight of the base 10, reduce the impact of vibration on the base surface, and improve the measurement accuracy of the detection device 1.

[0040] Example 2:

[0041] Based on Embodiment 1, the horizontal adjustment component in this embodiment includes: an adjustment bolt 30, which is configured as an adjustment end. Multiple adjustment bolts 30 are arranged at intervals along the circumference of the base 10, and the free end of each adjustment bolt 30 is adapted to cooperate with the detection component.

[0042] In some embodiments, the adjusting bolt 30 constitutes the core part of the leveling assembly. The adjusting bolt 30 acts as the adjusting end. The adjusting bolt 30 is not a single bolt, but multiple bolts. Multiple adjusting bolts 30 are evenly distributed along the circumference of the base 10 (i.e., the periphery of the base 10) to achieve more uniform and stable leveling through multi-point adjustment. The free end of each adjusting bolt 30 can contact or cooperate with the detection assembly. That is, the adjusting bolt 30 can change its height extending out of the base 10 by rotation, thereby affecting the leveling state of the detection assembly.

[0043] Understandably, multiple adjusting bolts 30 are distributed at different positions on the base 10 to ensure that the level of the detection component can be adjusted evenly in all directions, avoiding tilting or imbalance of the detection component that may be caused by single-point adjustment. Moreover, the adjusting bolts 30 change their length extending out of the base 10 by rotating. This fine-tuning mechanism allows users to precisely adjust the position of the detection component to ensure that the detection component is in an ideal level state.

[0044] Thus, through the synergistic action of multiple adjusting bolts 30, more precise leveling can be achieved, ensuring that the detection component is in the optimal measuring state. Moreover, multiple adjusting bolts 30 provide more support points, which helps to improve the stability of the detection component, especially when working on uneven ground. Of course, users can adjust the position of the detection component by simply rotating the adjusting bolts 30 without the need for complicated tools or additional equipment. In particular, this multi-point adjustment design enables the detection device 1 to adapt to various working environments, maintaining good levelness of the detection component even on uneven ground.

[0045] According to some embodiments of the present invention, the base 10 is provided with threaded holes corresponding to a plurality of adjusting bolts 30. The adjusting bolt 30 includes an adjusting part 31 and a lead screw part 32. The adjusting part 31 is located on the side of the base 10 away from the detection component. The lead screw part 32 is connected to the adjusting part 31 and engages with the corresponding threaded hole. The free end of the lead screw part 32 extends to abut against the detection component.

[0046] In some embodiments, the base 10 is provided with threaded holes equal in number to the adjusting bolts 30, and each adjusting bolt 30 has a corresponding threaded hole. The adjusting part 31 is located on the side of the base 10 away from the detection component. The adjusting part 31 can be a handwheel or other structure that is easy to rotate manually. The user can drive the adjusting bolts 30 to rotate by rotating the adjusting part 31.

[0047] The lead screw part 32 is connected to the adjustment part 31. The lead screw part 32 is threaded and engages with the threaded hole on the base 10. When the adjustment part 31 is rotated, the lead screw part 32 will rotate in the threaded hole, thereby changing the position of the lead screw relative to the base 10, thus adjusting the levelness of the detection component.

[0048] Understandably, the design of the adjustment unit 31 allows users to easily adjust the position of the detection component by manual rotation without the need for special tools or equipment. This not only improves the adjustment accuracy and stability of the concentricity detection device 1, but also simplifies the user's operation process and enhances the adaptability and practicality of the detection device 1.

[0049] Example 3:

[0050] Based on Embodiment 2, the detection component in this embodiment includes: a mounting base 21, an adjusting base 22, and an infrared detector 23. The mounting base 21 is adapted to cooperate with the free end of the lead screw 32. The adjusting base 22 is movably connected to the mounting base 21. The adjusting base 22 can be selectively moved relative to the mounting base 21 in the width direction. The infrared detector 23 is connected to the adjusting base 22.

[0051] In some embodiments, the mounting base 21 is part of the detection assembly. The mounting base 21 cooperates with the free end of the lead screw portion 32 of the adjusting bolt 30. The level of the mounting base 21 is adjusted by raising and lowering the adjusting bolt 30, thereby realizing the overall level adjustment of the detection assembly. There is a movable connection between the adjusting base 22 and the mounting base 21. The adjusting base 22 can move relative to the mounting base 21 in the width direction. The infrared meter 23 is connected to the adjusting base 22. The infrared meter 23 is constructed as the measuring unit. The infrared meter 23 is a key component that actually performs the measurement task and is used to detect concentricity.

[0052] Understandably, when measuring the concentricity of the relay and the control ring guide rail, multiple adjustment parts 31 are first rotated to adjust the level of the mounting base 21. After the level of the mounting base 21 is adjusted, the adjustment seat 22 is moved so that the vertical line of the infrared meter 23 is located on the center line of the control ring. Then, the adjustment seat 22 is moved in the width direction so that the infrared meter 23 is located on the center line of the relay base 10. At this time, the length of the adjustment seat 22 is the measured concentricity difference.

[0053] According to some embodiments of the present invention, the mounting base 21 is provided with a slide rail 211 extending in the width direction, and the bottom of the adjusting base 22 is provided with a slide groove, and the slide rail 211 slides in cooperation with the slide groove.

[0054] In some embodiments, the outer peripheral wall of the slide rail 211 can restrict the inner peripheral wall of the slide groove, thereby allowing the slide groove to move stably along the extension direction of the slide rail 211, and thus allowing the adjusting seat 22 to move stably relative to the mounting seat 21 in the width direction, ensuring the movement stability of the infrared meter 23.

[0055] According to some embodiments of the present invention, the slide rail 211 is constructed as two slide rails 211, which are spaced apart in the length direction. Two first fixing members 213 are arranged between the two slide rails 211, which are spaced apart in the width direction. The two first fixing members 213 can be selectively moved relative to the mounting base 21 to fix the adjusting base 22 on both sides in the width direction.

[0056] In some embodiments, the adjusting seat 22 is provided with two sliding grooves, which respectively cooperate with two slide rails 211. Thus, through the cooperation of the two sliding grooves and slide rails 211, the movement of the adjusting seat 22 relative to the base 10 is more stable.

[0057] The base 10 is provided with two first fixing members 213. Both first fixing members 213 are located between two slide rails 211, and the line connecting the two first fixing members 213 is parallel to the extension direction of the slide rails 211. The two first fixing members 213 are spaced apart in the width direction. When the adjusting seat 22 is adjusted to the specified position, the user can control the two first fixing members 213 to move relative to the mounting seat 21 respectively until the two first fixing members 213 stop at both ends of the adjusting seat 22 in the width direction. Thus, the two first fixing members 213 cooperate to fix the position of the adjusting seat 22 relative to the mounting seat 21 in the width direction, thereby fixing the adjusting seat 22 to the mounting seat 21.

[0058] According to some embodiments of the present invention, the mounting base 21 is provided with a first connecting ear 212, which is disposed between two slide rails 211. The first connecting ear 212 is provided with a first through hole, and the inner peripheral wall of the first through hole is provided with a first internal thread. The outer peripheral wall of the first fixing member 213 is provided with a first external thread. The first internal thread and the first external thread cooperate. The two first fixing members 213 respectively abut against the two sides of the adjusting base 22 in the width direction to fix the adjusting base 22 relative to the mounting base 21.

[0059] In some embodiments, the mounting base 21 is provided with two first connecting ears 212, which correspond to two first fixing members 213 respectively. The first connecting ears 212 are located between two slide rails 211. The first connecting ears 212 are provided with a first through hole, and the inner peripheral wall of the first through hole is provided with a first internal thread. The outer peripheral wall of the first fixing member 213 is provided with a first external thread that mates with the first internal thread. By rotating the first fixing member 213, the first fixing member 213 can pass through the first through hole on the first connecting ear 212 and contact the adjusting seat 22, thereby fixing the position of the adjusting seat 22.

[0060] It is understandable that by engaging the external thread on the first fixing member 213 with the internal thread on the first connecting ear 212, the first fixing member 213 can rotate and move in the first through hole. When the first fixing member 213 is rotated, the two first fixing members 213 will move toward or away from the adjusting seat 22. When the two first fixing members 213 respectively abut against the two sides of the adjusting seat 22 in the width direction, the adjusting seat 22 is fixed relative to the mounting seat 21.

[0061] Therefore, the above-mentioned settings allow users to precisely adjust the position of the first fixing member 213, thereby fixing the adjusting seat 22 in the desired position and ensuring measurement accuracy. Furthermore, since the first fixing member 213 can abut against both sides of the adjusting seat 22 in the width direction, the adjusting seat 22 will not easily move during measurement, improving measurement stability. Moreover, users only need to rotate the first fixing member 213 to fix or release the adjusting seat 22, making the operation simple and quick, without the need for complex tools or steps. Of course, the above-mentioned settings also enable the detection device 1 to adapt to various measurement needs; users can adjust the position of the adjusting seat 22 according to the actual situation and ensure the stability of the adjusting seat 22 during the measurement process.

[0062] Example 4:

[0063] Based on Embodiment 2, in this embodiment, the adjusting base 22 is movably provided with second fixing members 222 at both ends in the length direction. The two second fixing members 222 respectively abut against the two ends in the length direction of the infrared meter 23 to fix the infrared meter 23 to the adjusting base 22.

[0064] In some embodiments, the adjusting seat 22 is provided with two second connecting ears 221, which correspond to two second fixing members 222 respectively. The two second connecting ears 221 are spaced apart in the length direction. The second connecting ears 221 are provided with a second through hole, and the inner peripheral wall of the second through hole is provided with a second internal thread. The outer peripheral wall of the second fixing member 222 is provided with a second external thread that mates with the second internal thread. By rotating the second fixing member 222, the second fixing member 222 can pass through the second through hole on the second connecting ear 221 and contact the infrared meter 23, thereby fixing the infrared meter 23 to the adjusting seat 22.

[0065] Therefore, by rotating the second fixing part 222, the infrared meter 23 can be installed and removed from the adjusting seat 22, which improves the installation and removal efficiency of the detection device 1. At the same time, when the infrared meter 23 malfunctions, the user can easily disassemble the infrared meter 23 to repair it, which improves the maintenance efficiency of the detection device 1.

[0066] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A concentricity detection device for a cross-flow turbine unit, characterized in that, include: Base (10); A detection component is disposed above the base (10), and the detection component is provided with a measuring part, which can be selectively moved relative to the base (10) in the length direction and / or width direction; A horizontal adjustment component is connected to the base (10). The horizontal adjustment component is provided with an adjustment end, at least a portion of which is located between the base (10) and the detection component. The horizontal adjustment component is adapted to adjust the levelness of the detection component.

2. The concentricity detection device for a cross-flow turbine unit according to claim 1, characterized in that, The horizontal adjustment component includes: Adjusting bolts (30), the adjusting bolts (30) are configured as the adjusting end, the adjusting bolts (30) are configured as a plurality of them, the plurality of adjusting bolts (30) are arranged at circumferential intervals along the base (10), and the free end of each adjusting bolt (30) is adapted to cooperate with the detection component.

3. The concentricity detection device for a cross-flow turbine unit according to claim 2, characterized in that, The base (10) is provided with threaded holes corresponding one-to-one with the plurality of adjusting bolts (30), the adjusting bolts (30) including: An adjustment part (31) is located on the side of the base (10) away from the detection component; The lead screw (32) is connected to the adjustment part (31), the lead screw (32) is engaged with the corresponding threaded hole, and the free end of the lead screw (32) extends to abut against the detection component.

4. The concentricity detection device for a cross-flow turbine unit according to claim 3, characterized in that, The detection component includes: Mounting base (21), the mounting base (21) being adapted to engage with the free end of the lead screw portion (32); Adjustment seat (22), which is movably connected to the mounting seat (21), and the adjustment seat (22) can be selectively moved relative to the mounting seat (21) in the width direction; Infrared instrument (23), which is connected to the adjustment seat (22).

5. The concentricity detection device for a cross-flow turbine unit according to claim 4, characterized in that, The mounting base (21) is provided with a slide rail (211) extending in the width direction, and the bottom of the adjusting base (22) is provided with a sliding groove, and the slide rail (211) slides in cooperation with the sliding groove.

6. The concentricity detection device for a cross-flow turbine unit according to claim 5, characterized in that, The slide rail (211) is configured as two, with the two slide rails (211) spaced apart in the length direction. Two first fixing members (213) are provided between the two slide rails (211), and the two first fixing members (213) are spaced apart in the width direction. The two first fixing members (213) can be selectively moved relative to the mounting base (21) to fix the adjusting base (22) on both sides in the width direction.

7. The concentricity detection device for a cross-flow turbine unit according to claim 6, characterized in that, The mounting base (21) is provided with a first connecting ear (212), which is located between the two slide rails (211). The first connecting ear (212) is provided with a first through hole, and the inner peripheral wall of the first through hole is provided with a first internal thread. The outer peripheral wall of the first fixing member (213) is provided with a first external thread. The first internal thread and the first external thread cooperate. The two first fixing members (213) respectively abut against the two sides of the adjusting seat (22) in the width direction to fix the adjusting seat (22) relative to the mounting base (21).

8. The concentricity detection device for a cross-flow turbine unit according to claim 4, characterized in that, The adjusting base (22) is movably provided with second fixing members (222) at both ends in the length direction. The two second fixing members (222) respectively abut against the two ends in the length direction of the infrared instrument (23) to fix the infrared instrument (23) to the adjusting base (22).

9. The concentricity detection device for a cross-flow turbine unit according to claim 1, characterized in that, The base (10) has a plurality of support legs (11) on the side away from the detection component, and the plurality of support legs (11) are spaced apart from each other.

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