Device and method for measuring verticality of large stud of rotor bracket

Abstract

The invention relates to rotor large stud measurement, and discloses a rotor support large stud perpendicularity measurement device and method, and the device comprises a suspension assembly which is fixed on a rotor support and comprises a fixed frame installed on the rotor support, a supporting seat disposed on the fixed frame, a distance measurement line with one end fixedly wound with the supporting seat and capable of being retracted and released, and a distance measurement assembly. The distance measuring assembly is fixed on the rotor bracket, is positioned below the suspension assembly, can be in contact with the distance measuring line when the distance measuring line discharges, and comprises a base fixed on the circumferential side wall of the rotor bracket and a distance measuring piece connected with the base; the distance measuring piece comprises a fixed section connected with the base and an extension section which is connected with the fixed section through rotation and can change the length of the distance measuring piece, the perpendicularity of the large stud can be measured more accurately, the critical point when the measuring tool makes contact with the large stud can be observed more clearly in the measuring process, and the perpendicularity range is accurately determined.

Description

Technical Field

[0001] The present invention relates to the field of measuring the large vertical ribs of a rotor, in particular to a device and method for measuring the perpendicularity of the large vertical ribs of a rotor bracket. Background Art

[0002] During the assembly, welding of the rotor bracket and the machining of the large vertical ribs of the rotor bracket, it is necessary to measure the perpendicularity of the large vertical ribs of the rotor bracket. After the machining of the large vertical ribs of the rotor bracket, it is required that the perpendicularity of the large vertical ribs meets a certain standard to be qualified. However, when hanging piano wires on-site and using an internal diameter micrometer to measure the perpendicularity error of the large vertical ribs of the rotor bracket, the error is relatively large. The measurement error of the same person is relatively small, but the measurement values of different people deviate greatly. The measuring points selected by the analysts are not on the same vertical line, and there are certain deviations in the measuring points. At the same measuring point, the hand feeling of different people is different, so there are relatively large errors. The inaccurate measurement results directly affect the assembly quality of the rotor. The perpendicularity of the large vertical ribs requires three-level acceptance, so more than 3 person-times of measurement are required. When measuring the perpendicularity of the large vertical ribs multiple times by replacing different staff, there will be relatively large errors, and the measurement process is relatively cumbersome, resulting in low work efficiency. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is that when measuring the perpendicularity of the large vertical ribs of the rotor bracket, the values measured by different staff are not fixed, and the measurement results are inaccurate with relatively large errors.

[0004] The above technical problem is solved by the following technical solutions: The present invention provides a device for measuring the perpendicularity of the large vertical ribs of a rotor bracket, which includes a suspension component fixed on the rotor bracket. The suspension component includes a fixed frame installed on the rotor bracket, a support seat arranged on the fixed frame, and a ranging wire that is fixed and wound at one end with the support seat and can be retracted and is conductive. A battery pack connected to the ranging wire is installed on the surface of the fixed frame, and the ranging wire is connected to the positive pole of the battery pack. A ranging component is fixed on the rotor bracket and is located below the suspension component, and can contact the ranging wire when the ranging wire discharges. The ranging component includes a base fixed on the circumferential side wall of the rotor bracket and a conductive ranging member connected to the base. The ranging member includes a fixed section connected to the base and an extended section that is connected to the fixed section by rotation and can change the length of the ranging member. A signal lamp is electrically conducted on the circumferential surface of the fixed section, and the signal lamp and the negative pole of the battery pack are electrically conducted through a cable line.

[0005] In a preferred embodiment of the device and method for measuring the perpendicularity of the large vertical ribs of the rotor bracket of the present invention: The other end of the ranging wire is connected to a hanging weight. The suspension component further includes a bucket placed directly below the vertical ranging wire, and insulating mucus is contained in the bucket.

[0006] In a preferred embodiment of the rotor support verticality measuring device and method of the present invention: one end face of the base is magnetically connected to the rotor support, the end face of the base away from the rotor support is provided with a mounting bolt, and the fixed section of the measuring element is provided with a threaded groove to enable the mounting bolt to be threadedly connected.

[0007] In a preferred embodiment of the rotor support verticality measuring device and method of the present invention: the measuring element further includes a movable measuring head fixedly connected to the side of the extension section away from the fixed section, the circumferential sidewall of the fixed section is provided with a through hole, the fixed section further includes a locking bolt threadedly connected to the through hole, the locking bolt abuts against the extension section through the through hole.

[0008] In a preferred embodiment of the rotor support verticality measuring device and method of the present invention: the fixed frame includes a support beam on the side away from the rotor support and a cantilever beam connected to the end of the support beam to form an angle. The end face of the cantilever beam on the side away from the rotor support is set in a plane. The measuring line is connected to the pendant at one end and falls into the barrel and contacts the insulating viscous liquid under the weight of the pendant.

[0009] In a preferred embodiment of the rotor support verticality measuring device and method of the present invention: a clamping plate for holding the battery pack is provided at the end of the support base away from the cantilever beam. Both ends of the clamping plate that contact the positive and negative terminals of the battery pack are provided with insertion holes. The end of the measuring line away from the pendant is inserted and fixed in the insertion hole of the clamping plate connected to the positive terminal of the battery pack. The end of the signal light that receives electrical conduction is provided with an insertion hole. Both ends of the cable are respectively provided with cable plugs that can be connected to the insertion holes of the battery pack and the signal light. One end of the cable plug is inserted into the insertion hole at the end of the clamping plate that contacts the negative terminal of the battery pack, and the other end is inserted into the insertion hole of the signal light.

[0010] In a preferred embodiment of the rotor support verticality measuring device and method of the present invention: an insulating layer is provided on the side where the fixed frame is connected to the support base, so that electrical conduction cannot be carried out between the support base and the fixed frame, and the support beam and cantilever beam are in insulating contact with the measuring line.

[0011] The advantages of the rotor support verticality measuring device of the present invention are: it can measure the verticality of the vertical rib more accurately, and can more clearly observe the critical point when the measuring tool contacts the vertical rib during the measurement process.

[0012] Another objective of this invention is to provide an operating method for a rotor support verticality measuring device, which aims to solve the problems of potential measurement deviations and inaccurate measurement results.

[0013] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: an operation method of a rotor support verticality measuring device, which includes a support base laying a measuring line, so that one end of the measuring line connected to the pendant passes around the support beam and the cantilever beam, so that the measuring line falls naturally downward through the extension section to reach the insulating viscous liquid inside the barrel, and the verticality of the measuring line is observed.

[0014] In a preferred embodiment of the rotor support verticality measuring device and method of the present invention: the extension section is rotated to make the movable probe contact the measuring line until the indicator light is lit, and the distance between the measuring element and the measuring line is recorded.

[0015] In a preferred embodiment of the rotor support verticality measuring device and method of the present invention: a scale is set on the circumferential surface of the extension section, which can accurately rotate the extension section to measure the displacement distance and record the distance between the measuring line and the movable probe. The extension section is rotated slowly, and the movable probe is stopped when the indicator light turns on. After waiting for several seconds, the extension section is rotated in stages, each time shortening the length of the distance measuring instrument by the minimum scale value until the indicator light turns off. The extension section is then rotated in the opposite direction, each time by the minimum scale value. When the indicator light turns on again, the distance value is recorded, and finally the average distance is calculated.

[0016] The beneficial effects of this invention are that it can more accurately measure the verticality of the rotor's main vertical ribs, and multiple measurements can avoid accidental phenomena and accurately obtain the measurement critical value. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein:

[0018] Figure 1 This diagram illustrates a device for measuring the radial perpendicularity of a rotor support's main vertical rib.

[0019] Figure 2 A schematic diagram of the suspension assembly in a rotor support verticality measuring device is shown.

[0020] Figure 3 A schematic diagram of the distance measuring component in a rotor support verticality measuring device is shown.

[0021] Figure 4 A cross-sectional schematic diagram of the distance measuring component in a rotor support verticality measuring device is shown.

[0022] Figure 5 A side view and a front view of the base in a rotor support verticality measuring device are shown.

[0023] Figure 6 A top view of a rotor support verticality measuring device is shown;

[0024] Figure 7 A schematic diagram of the cable structure in a rotor support verticality measuring device is shown.

[0025] Figure 8 A top view of a rotor support verticality measuring device is shown in which the circumferential verticality of the main vertical rib is being measured. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0027] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0028] Reference Figures 1 to 8 This embodiment provides a device and method for measuring the verticality of the main vertical rib of a rotor support, including a suspension assembly 1 fixed on the rotor support. The assembly includes a mounting bracket 11 installed on the rotor support. The mounting bracket 11 can be bolted to the top of one side of the main vertical rib of the rotor. Bolt holes can be provided at the location of the main vertical rib, which is not specifically limited here, to facilitate the installation of the mounting bracket 11. During installation, it is important to ensure that the mounting bracket 11 is level with the main vertical rib of the rotor. Therefore, the methods used for milling, turning, and other machining of the mounting bracket are not specifically limited here, but the goal is to ensure that the flatness of the final produced mounting bracket 11 meets the standards. A support seat is provided on the mounting bracket 11. 12. A rotatable cylinder is placed on the support base 12 to facilitate the winding and unwinding of the measuring line 13. The measuring line 13 is fixed and wound around the support base 12 at one end and can be wound and unwound. The measuring line 13 is wound around the support base 12. The measuring line 13 is made of conductive material and has a strong load-bearing capacity. The line is thin to avoid measurement deviations due to the thickness of the measuring line 13 itself. For example, piano wire is used. No specific limitation is made here. The other end of the measuring line 13 is connected to the pendant 14. It can be connected to the pendant 14 by winding and binding the measuring line 13. At the same time, the pendant 14 itself can be provided with an opening to connect the measuring line 13 to the pendant 14 more conveniently and stably.

[0029] Specifically, the weight of the pendant 14 needs to be such that it will not sway significantly due to surrounding airflow, and the pendant 14 itself can minimize its swing amplitude within the insulating adhesive 151. The material of the pendant 14 is not specifically limited here. As the ranging line 13 hangs naturally with the pendant 14, the amplitude of its swing is reduced. The suspension assembly 1 also includes a barrel 15 placed vertically below the ranging line 13. The barrel 15 can be placed on the ground, and its opening can be relatively large to allow the pendant 14 to fall easily into it. Inside the barrel 15, insulating adhesive 151 is contained. The material of the insulating adhesive 151 should be chosen to reduce the swing amplitude of the pendant 14 and ensure that the pendant 14 does not shake for a short period of time. When the pendant 14 is inside the insulating adhesive 151, the force exerted by the external airflow on the ranging line 13 should be less than the frictional resistance of the insulating adhesive 151 on the pendant 14. In this way, during the perpendicularity measurement process, the pendant 14 plays a stabilizing role in driving the ranging line 13, which can make the measurement results more accurate.

[0030] Furthermore, the ranging component 2 is fixed on the rotor bracket and located below the suspension component 1. When the ranging line 13 falls naturally with the pendant 14, the ranging line 13 can be taut. The ranging component 2 can contact the ranging line 13 to perform measurement when the ranging line 13 is discharged.

[0031] like Figure 1 and Figure 8 As shown, specifically, the ranging component 2 includes a base 21 fixed on the circumferential sidewall of the rotor support. It should be noted that the base 21 can be installed at different positions of the rotor's main vertical rib, specifically including the radial surface and the circumferential surface of the rotor's main vertical rib. When placed on these two surfaces, the radial verticality and the circumferential verticality of the main vertical rib can be measured respectively.

[0032] One end face of the base 21 is magnetically connected to the rotor support. Since the rotor's main vertical rib is made of metal, the base 21 can be magnetically connected to the surface of the main vertical rib by magnetic force. During processing, it is also necessary to ensure that the flatness of the end face of the base 21 in contact with the main vertical rib meets the standard and is level. The end face in contact with the measuring component 22 must also be level. Only when it is level can the verticality of the main vertical rib be measured more accurately.

[0033] like Figure 5 and Figure 1As shown, furthermore, the end face of the base 21 away from the rotor support is provided with mounting bolts 211 and a measuring element 22 connected to the base 21. The measuring element 22 is similar to an outside micrometer structure. The surface can be set with scales to facilitate more accurate rotational displacement path of the extension section 222. The measuring element 22 includes a fixed section 221 connected to the base 21 and an extension section 222 that is connected to the fixed section 221 by rotation and can change the length of the measuring element 22. The fixed section 221 of the measuring element 22 has a threaded groove so that the mounting bolts 211 can be threadedly connected. In this way, the measuring element 22 can be fixed as a whole on the mounting bolts. When it is necessary to change the measurement position in the future, it is only necessary to change the contact position between the magnetic connection base 21 and the main rib. This operation is more convenient and faster.

[0034] Furthermore, the ranging device 22 also includes a movable measuring head 223 fixedly connected to the side of the extension section 222 away from the fixed section 221. The fixed section 221 has a through hole 2211 through its circumferential sidewall. The fixed section 221 also includes a locking bolt 2212 threadedly connected to the through hole 2211. The locking bolt 2212 passes through the through hole 2211 and abuts against the extension section 222. When the position of the extension section 222 is determined, the locking bolt 2212 can be rotated to fix the position of the extension section 222, thereby recording the distance between the movable measuring head 223 and the ranging line 13.

[0035] Furthermore, a clamping plate 113 is provided at the end of the support base 12 away from the cantilever beam 112. The battery pack 114 is clamped in the clamping plate 113. The current of the battery pack 114 is extremely small, only enough to light up the indicator light, and will not pose a risk of electric shock to the staff. Both ends of the clamping plate 113 that are in contact with the positive and negative terminals of the battery pack 114 are provided with insertion holes a. The clamping plate 113 can be connected with bolts. The bolts are connected to the insertion holes a, thereby fixing the cable 24 and fixing the cable 24 to the negative terminal of the battery. The distance measuring line 13 extends from the end away from the pendant 14 and is inserted and fixed in the insertion hole a where the clamping plate 113 is connected to the positive terminal of the battery pack 114, and is electrically connected to the distance measuring line 13.

[0036] like Figure 1As shown, a signal light 23 is electrically conductively mounted on the circumferential surface of the fixed section 221. The signal light 23 is circumferentially sleeved on the fixed section 221. Since the fixed section 221 is made of conductive material, a cable can be wound inside the signal light 23 on the fixed section 221, which not only serves to fix the signal light 23 but also to conduct electricity. The receiving end of the signal light 23 is provided with a wire insertion hole a. The ranging component 2 also includes a cable 24 for electrical conduction of the battery pack 114. Cable plugs are provided at both ends of the cable, and one end of the cable plug is inserted into the wire insertion hole at the contact end between the clamping plate 113 and the negative terminal of the battery pack 114. One end is inserted into the socket a of the signal light 23, so that when the movable probe 223 contacts the ranging line 13, the battery pack 114 can conduct electricity to the movable probe 223 through the ranging line 13. The movable probe 223 then conducts the electricity to the fixed section 221. The electricity on the fixed section 221 is conducted to the signal light 23. The signal light 23 conducts electricity from the socket a to the cable 24, and finally to the tail end of the cable 24, which is the negative terminal of the battery pack 114, thus forming a closed loop. The signal light 23 can then be lit, allowing the staff to more intuitively observe the moment when the movable probe 223 contacts the ranging line 13.

[0037] Furthermore, an insulating layer 115 is provided on the side where the fixed frame 11 connects to the support base 12. The insulating layer 115 can be covered with a pad of insulating material. The support beam 111 and the cantilever beam 112 are in insulated contact with the ranging line 13, so that the support base 12 and the fixed frame 11 cannot conduct electricity, which can make the electrical transmission signal more accurate.

[0038] Note that there will be hooks below the measuring area on the rotor's main vertical rib. Figure 1 As shown, in order to prevent the ranging line 13 from falling onto the hook naturally, a support beam 111 is provided, which can achieve the outward extension of the ranging line 13.

[0039] In summary, during the measurement process, staff can use this equipment to measure the radial and circumferential verticality of the main vertical reinforcement bars. During the measurement, the base 21 can be moved vertically to take several sets of measurement points, allowing for measurement of the verticality of the main vertical reinforcement bars from multiple locations. First, the base 21 is fixed to the radial vertical surface of the main vertical reinforcement bar. The movable probe 223 is brought into contact with the measuring line by rotating the extension section 222. Since the extension section 222 is equipped with an outside micrometer scale in conjunction with the fixed section 221... The operator slowly contacts the ranging line 13 by rotating a certain scale. After contacting the ranging line 13, the indicator light 23 will light up. At this time, the extension section 222 is rotated in the opposite direction to retract it into the fixed section 221. At the same time, the displacement distance of the extension section 222 needs to be reduced. The operator moves slowly again until the indicator light 23 goes out, which means that the ranging line 13 is disengaged from the movable probe 223 of the extension section 222. The control of the extension section 222 stops the moment the indicator light 23 goes out. This is the distance that the movable probe 223 has reached the ranging line 13.

[0040] Furthermore, by rotating the locking bolt 2212, the extension section 222 can be brought into contact with the extension section 222 to prevent further movement. At this time, the scale information of the circumferential surface of the extension section 222 can be recorded. Then, the locking bolt 2212 is loosened, and the measuring point of the base 21 in the vertical direction of the main rib is changed. After measuring multiple sets of data using the above measurement method, the data can be compared. The result obtained by subtracting the minimum value from the maximum value of the spacing meets the verticality standard.

[0041] When the verticality does not meet the standard, there are several situations, the most common being: First, the verticality of the vertical surface of the rotor's main vertical rib does not meet the standard, in which case the main vertical rib needs to be re-machined by the machine tool; second, there are problems during the welding process of the main vertical rib, in which case the welding process needs to be adjusted; third, the end face of the base 21 is not flat, and each movement will correspond to a different degree of fit with the main vertical rib, and there will be a certain deviation during the measurement process, in which case the base 21 needs to be re-machined.

[0042] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A device for measuring the verticality of the main vertical rib of a rotor support, characterized in that: include, The suspension assembly (1) is fixed on the rotor support and includes a fixed frame (11) mounted on the rotor support, a support seat (12) set on the fixed frame (11), and a ranging line (13) that is fixedly wound with one end of the support seat (12), can be retracted and is conductive. A battery pack (114) connected to the ranging line (13) is mounted on the surface of the fixed frame (11), and the ranging line (13) is connected to the positive terminal of the battery pack (114). The ranging component (2) is fixed on the rotor support and located below the suspension component (1). It can contact the ranging line (13) when the ranging line (13) is discharged. It includes a base (21) fixed on the circumferential side wall of the rotor support and a conductive ranging element (22) connected to the base (21). The ranging element (22) includes a fixed section (221) connected to the base (21) and an extension section (222) connected to the fixed section (221) by rotation and capable of changing the length of the ranging element (22). The fixed section (221) is electrically conductively provided with a signal light (23) on its circumferential surface. The signal light (23) and the negative terminal of the battery pack (114) are connected by a cable (24) for circuit conduction.

2. The rotor support verticality measuring device according to claim 1, characterized in that: The other end of the ranging line (13) is connected to a pendant (14), and the suspension assembly (1) also includes a barrel (15) placed vertically below the ranging line (13), the barrel (15) containing insulating viscous liquid (151).

3. The rotor support verticality measuring device according to claim 2, characterized in that: The base (21) has one end face that is magnetically connected to the rotor support. The base (21) has a mounting bolt (211) on the end face away from the rotor support. The fixing section (221) of the measuring element (22) has a threaded groove that allows the mounting bolt (211) to be threaded.

4. The rotor support verticality measuring device according to claim 3, characterized in that: The ranging device (22) also includes a movable measuring head (223) fixedly connected to the side of the extension section (222) away from the fixed section (221). The fixed section (221) has a through hole (2211) through its circumferential sidewall. The fixed section (221) also includes a locking bolt (2212) threadedly connected to the through hole (2211). The locking bolt (2212) abuts against the extension section (222) through the through hole (2211).

5. The rotor support verticality measuring device according to claim 2 or 4, characterized in that: The fixed frame (11) includes a support beam (111) on the side away from the rotor support and a cantilever beam (112) connected to the end of the support beam (111) to form an angle. The cantilever beam (112) is set on the end face of the side away from the rotor support. The end of the measuring line (13) connected to the pendant (14) is subjected to the weight of the pendant (14) and falls into the barrel (15) and comes into contact with the insulating adhesive (151).

6. The rotor support verticality measuring device according to claim 5, characterized in that: The support base (12) is provided with a clamping plate (113) for clamping the battery pack (114) at the end away from the cantilever beam (112). Both ends of the clamping plate (113) that are in contact with the positive and negative terminals of the battery pack (114) are provided with insertion holes (a). The end of the measuring line (13) away from the pendant (14) is inserted and fixed in the insertion hole (a) where the clamping plate (113) is connected to the positive terminal of the battery pack (114). The signal light (23) is provided with a wire insertion hole (a) at its electrical conduction receiving end; The cable (24) is provided with cable plugs at both ends, which can be connected to the plug hole (a) of the battery pack (114) and the plug hole (a) of the signal light (23); One end of the cable plug is inserted into the insertion hole (a) of the clamping plate (113) and the negative terminal of the battery pack (114), and the other end is inserted into the insertion hole (a) of the signal light (23).

7. The rotor support verticality measuring device according to claim 6, characterized in that: An insulating layer (115) is provided on the side where the fixed frame (11) is connected to the support base (12), so that electrical conduction cannot be carried out between the support base (12) and the fixed frame (11), and the support beam (111) and the cantilever beam (112) are in insulating contact with the ranging line (13).

8. An operating method for a rotor support verticality measuring device, characterized in that: The device is used to measure the verticality of the main rib of the rotor support as described in any one of claims 1 to 7; and the support base (12) lays the measuring line (13) so that one end of the measuring line (13) connected to the pendant (14) passes around the support beam (111) and the cantilever beam (112), so that the measuring line (13) falls naturally downward through the extension section (222) to the insulating viscous liquid (151) inside the barrel (15), and the verticality of the measuring line (13) is observed.

9. The operation method of the rotor support verticality measuring device according to claim 8, characterized in that: Rotate the extension section (222) to bring the movable probe (223) into contact with the ranging line (13) until the indicator light (23) lights up, and record the distance between the ranging element (22) and the ranging line (13).

10. The operation method of the rotor support verticality measuring device according to claim 9, characterized in that: A scale is set on the circumferential surface of the extension section (222) so that the displacement distance of the extension section (222) can be accurately rotated and the distance between the measuring line (13) and the movable probe (223) can be recorded. Slowly rotate the extension section (222). When the signal light (23) lights up, stop rotating the movable probe and wait for several seconds. Then rotate the extension section (222) in stages, shortening the distance measuring instrument length by the minimum scale value each time, until the signal light (23) goes out. Then rotate the extension section (222) in the opposite direction, rotating by the minimum scale value each time. When the signal light (23) lights up again, record the distance value and finally calculate the average distance.

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