Rotating base for coupling alignment

Abstract

The present invention provides a self-rotating base for coupling centering, which relates to the technical field of coupling centering equipment, and mainly solves the technical problem that the coupling needs to be turned during coupling calibration in the prior art, making the centering calibration operation difficult. The self-rotating base for coupling centering of the invention includes a mounting seat and a rotating platform, the mounting seat is used to connect with the two ends of the coupling to be calibrated, the rotating platform is hinged to the mounting seat, and the rotating platform is used to install the centering instrument for coupling calibration, so that the rotating platform can drive the centering instrument to rotate. The rotating platform is hinged to the mounting seat, so that the rotating platform can drive the centering instrument to rotate, and then simulate the rotation action of the motor and water pump shaft to be tested without turning the coupling. The present invention can effectively reduce the labor intensity of the operation and improve the efficiency of the coupling maintenance and installation operation.

Description

Technical Field

[0001] The invention relates to the technical field of coupling centering equipment, and in particular to a self-rotating base used for coupling centering. Background Art

[0002] After the maintenance and installation of large-scale mechanical rotating equipment at home and abroad, the coupling of the rotating shaft must be aligned and corrected. Traditionally, a magnetic base and a dial indicator are used to detect error data. It is necessary to repeatedly manually turn the coupling for half a circle to obtain data. This method is reliable and accurate, but inefficient and hard for workers. The turning of motors below 100KW is relatively easy and can be done by one person. Another method is to use a laser alignment instrument instead of a dial indicator for detection, and automatically calculate the error and adjustment data. However, it takes at least 8-10 people with the help of a lever and a crowbar to turn a super-large motor water pump above 1500KW. If the motor and the water pump are separated by more than 3 meters due to site reasons, it is almost impossible to achieve synchronous turning of the two ends of the coupling. In recent years, many companies have switched to using laser alignment instruments to calibrate data. However, when it comes to calibrating super-large and large-interval couplings like the one mentioned above, they encounter the problem of being unable to synchronize the turning. Without synchronized turning, accurate data cannot be obtained, resulting in large deviations in the calculation results of the laser alignment instrument. The inability to provide correct data leads to slow work progress and reduced quality. As a result, in the coupling correction work under this working condition, the traditional bracket plus dial indicator method is still used for calibration, and the calibration is based on the turning of a single-sided coupling, rather than the synchronous turning of both ends to detect the data, which greatly reduces the calibration accuracy. Summary of the invention

[0003] One of the purposes of the present invention is to provide a servo self-rotating base for coupling centering, which solves the technical problem that the coupling needs to be rotated during coupling calibration in the prior art, making the centering and calibration operation difficult. The preferred embodiment of the present invention can achieve many beneficial effects, as described below.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The self-rotating base for coupling centering of the present invention comprises a mounting seat and a rotating platform, wherein the mounting seat is used to be connected to two ends of the coupling to be calibrated and centered, the rotating platform is hinged to the mounting seat, and the rotating platform is used to install an alignment instrument for coupling calibration so that the rotating platform can drive the alignment instrument to rotate.

[0006] According to a further preferred technical solution of the present invention, a magnet groove is provided on the mounting seat, and a magnet is embedded in the magnet groove, so that the mounting seat can be adsorbed on both ends of the coupling to be calibrated and aligned through the magnet.

[0007] According to a further preferred technical solution of the present invention, the rotating base used for coupling centering also includes an adjusting seat, one end of the adjusting seat is movably connected to the mounting seat, and the other end of the adjusting seat is hinged to the rotating platform so that the rotating platform is hinged to the mounting seat through the adjusting seat.

[0008] According to a further preferred technical solution of the present invention, the adjustment seat and the mounting seat are connected by magnet adsorption.

[0009] According to a further preferred technical solution of the present invention, the adjustment seat includes a turntable mounting seat and a parallel adjustment member, and the parallel adjustment member is connected to one end of the turntable mounting seat close to the mounting seat so that the parallel adjustment member can adjust the rotation center axis of the rotating platform to be parallel to the rotation center axis of the coupling.

[0010] According to a further preferred technical solution of the present invention, the parallel adjustment member also includes a fixed plate and a first adjustment screw. The fixed plate is fixedly connected to the turntable mounting seat, and a screw hole matching the first adjustment screw is provided on the fixed plate. The first adjustment screw passes through the screw hole on the fixed plate and abuts and / or is supported on the mounting seat.

[0011] According to a further preferred technical solution of the present invention, the adjustment seat also includes a concentric adjustment piece, the parallel adjustment piece and / or the turntable mounting seat is embedded in the concentric adjustment piece, and a second adjustment screw is provided on the concentric adjustment piece, the second adjustment screw passes through the concentric adjustment piece and is supported and / or abutted on the side wall of the parallel adjustment piece and / or the turntable mounting seat.

[0012] According to a further preferred technical solution of the present invention, a square hole is arranged and / or combined on the concentric adjusting member, and one end of the parallel adjusting member and / or the turntable mounting seat close to the mounting seat is arranged to be a square that matches the concentric adjusting member, and second adjusting screws are arranged on all four sides of the square hole.

[0013] According to a further preferred technical solution of the present invention, the rotating base used for coupling centering also includes a driving device, which is fixedly mounted on the turntable mounting seat and is transmission-connected to the rotating platform so that the driving device can drive the rotating platform to rotate.

[0014] According to a further preferred technical solution of the present invention, the rotating base used for coupling centering also includes a centering instrument bracket, one end of the centering instrument bracket is connected to the rotating platform, and the other end of the centering instrument bracket is fixedly installed with the centering instrument.

[0015] The self-rotating base for coupling centering provided by the present invention has at least the following beneficial technical effects:

[0016] The self-rotating base for coupling alignment of the present invention is provided with a rotating platform, and the alignment instrument is installed on the rotating platform. The rotating platform is hinged with the mounting seat, so that the rotating platform can drive the alignment instrument to rotate, and then simulate the rotation action of the motor and the water pump shaft to be tested without turning the coupling, so as to achieve the purpose of saving manpower. In addition, by installing the self-rotating base at both ends of the coupling to be aligned, the rotating platforms at both ends of the coupling are synchronously rotated to simulate the rotation action of the motor and the water pump shaft to be tested, so that the alignment instrument installed on the rotating platform can obtain real error data, quickly, efficiently and accurately obtain correct data, and improve the quality of maintenance and installation.

[0017] In addition, the preferred technical solution of the present invention can also produce the following technical effects:

[0018] A preferred technical solution of the present invention is that a magnet groove is provided on the mounting seat, and a magnet is embedded in the magnet groove, so that the mounting seat is connected to the end of the coupling by magnet adsorption, which not only facilitates the installation and disassembly of the mounting seat, but also facilitates the coarse adjustment of the position of the mounting seat so that the mounting seat is located at the center position of the end face of the coupling.

[0019] As a further preferred technical solution of the present invention, by further arranging an adjustment seat, the precise adjustment of the installation position of the rotating platform can be achieved so that the rotation center axis of the rotating platform coincides with the rotation center axis of the coupling, thereby enabling the rotating platform to truly simulate the rotation of the motor and water pump shaft under test, that is, to truly simulate the rotation of both ends of the coupling.

[0020] As a further preferred technical solution of the present invention, a driving device is arranged on the turntable mounting seat, and the driving device is used to drive the rotating platform, so that the rotating platforms at both ends of the coupling can rotate synchronously, thereby improving the coupling alignment and calibration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a first schematic diagram of a rotating base according to a preferred embodiment of the present invention;

[0023] Figure 2 is a second schematic diagram of a rotating base according to a preferred embodiment of the present invention;

[0024] Figure 3 is a third schematic diagram of a rotating base according to a preferred embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of a coupling after calibration in a preferred embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of a first state of a preferred embodiment of the present invention before coupling calibration;

[0027] Figure 6 It is a schematic diagram of the second state of a preferred embodiment of the present invention before the coupling is calibrated.

[0028] In the figure: 1-mounting seat; 11-magnet slot; 2-rotating platform; 3-centering instrument; 4-adjusting seat; 41-turntable mounting seat; 42-parallel adjustment member; 421-fixed plate; 422-first adjusting screw; 43-concentric adjustment member; 431-second adjusting screw; 5-driving device; 6-centering instrument bracket; 7-coupling. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0030] Reference Figure 1 and Figures 4 to 6 As a preferred embodiment, the self-rotating base for coupling alignment of the present invention comprises a mounting seat 1 and a rotating platform 2, wherein the mounting seat 1 is used to connect with both ends of the coupling 7 to be calibrated and aligned, the rotating platform 2 is hinged to the mounting seat 1, and the rotating platform 2 is used to install an alignment instrument 3 for coupling calibration, so that the rotating platform 2 can drive the alignment instrument 3 to rotate. Preferably, the alignment instrument 3 is a laser alignment instrument.

[0031] When the rotating base described in the present invention is in use, the rotation center axis of the rotating platform 2 is aligned with the rotation center axis of the coupling 7, so that the rotation of the rotating platform 2 can simulate the rotation of the two ends of the coupling 7, that is, simulate and replace the rotation action of the motor and the water pump shaft under test, and then when the coupling 7 is calibrated, there is no need to rotate the two ends of the coupling 7, that is, there is no need for a turning operation, which can greatly save manpower during the centering and calibration of the coupling 7, especially reduce the difficulty of the centering and calibration operation of a large coupling 7.

[0032] Reference Figure 3As a preferred embodiment of the present invention, a magnet slot 11 is provided on the mounting seat 1, and a magnet is embedded in the magnet slot 11, so that the mounting seat 1 can be adsorbed on the two ends of the coupling 7 to be aligned by the magnet. Preferably, a permanent magnet is embedded in the magnet slot 11.

[0033] Reference Figure 1 and Figure 2 A further preferred embodiment of the present invention, the rotating base for coupling centering also includes an adjusting seat 4, one end of the adjusting seat 4 is movably connected to the mounting seat 1, and the other end of the adjusting seat 4 is hinged to the rotating platform 2, so that the rotating platform 2 is hinged to the mounting seat 1 through the adjusting seat 4.

[0034] In the above preferred embodiment, by setting the adjustment seat 4, the connection position and / or angle of the rotating platform 2 and the mounting seat 1 can be adjusted to achieve fine adjustment of the rotating center axes of the rotating platform 2 and the coupling 7 at both ends, so that the rotating center axes of the rotating platform 2 and the coupling 7 at both ends coincide with each other, that is, the rotating platform 2 and the coupling 7 are coaxial.

[0035] As a preferred embodiment, the mounting seat 1 and the adjustment seat 4 are both made of aluminum alloy. As a further preferred embodiment of the present invention, the adjustment seat 4 and the mounting seat 1 are provided with magnet grooves, and permanent magnets are embedded in the magnet grooves, so that the adjustment seat 4 and the mounting seat 1 are connected by magnet adsorption. As an implementable alternative, the mounting seat 1 and the adjustment seat 4 are both made of aluminum alloy, a magnet is embedded in the mounting seat 1, and an iron block is embedded in the adjustment seat 4, so that the magnet in the mounting seat 1 fixes the adjustment seat 4 by adsorbing the iron block in the adjustment seat 4. As another implementable alternative, a magnet is embedded in the mounting seat 1, and the adjustment seat 4 is made of magnetic material, such as iron.

[0036] In the above preferred embodiment, the adjusting seat 4 is connected and fixed to the mounting seat 1 by means of magnet adsorption, which is not only convenient for installing and / or disassembling the adjusting seat 4, but also can achieve fine adjustment of the connection position between the adjusting seat 4 and the mounting seat 1. Preferably, the mounting seat 1 and both ends of the coupling 7 and the mounting seat 1 and the adjusting seat 4 are connected by means of magnet adsorption to make full use of the magnet block embedded in the mounting seat 1.

[0037] Reference Figure 1 and Figure 2 As a further preferred embodiment of the present invention, the adjustment seat 4 includes a turntable mounting seat 41 and a parallel adjustment member 42, and the parallel adjustment member 42 is connected to one end of the turntable mounting seat 41 close to the mounting seat 1, so that the parallel adjustment member 42 can adjust the rotation center axis of the rotating platform 2 to be parallel to the rotation center axis of the coupling 7.

[0038] Refer again Figure 1 and Figure 2As a further preferred embodiment of the present invention, the parallel adjustment member 42 also includes a fixed plate 421 and a first adjustment screw 422. The fixed plate 421 is fixedly connected to the turntable mounting seat 41, and a screw hole matching the first adjustment screw 422 is provided on the fixed plate 421. The first adjustment screw 422 passes through the screw hole on the fixed plate 421 and contacts and / or is supported on the mounting seat 1.

[0039] Preferably, the fixing plate 421 is fixedly connected to one end of the turntable mounting seat 41 close to the mounting seat 1. Further preferably, the four corners of the fixing plate 421 are provided with screw holes matching the first adjusting screw 422, so that the operator can quickly adjust the height of the four sides of the fixing plate 421, thereby making the rotation center axis of the rotating platform 2 parallel to the rotation center axis of the coupling 7. During installation, the operator can fine-tune the height of the four sides of the rotating platform 2 by adjusting the first adjusting screw 422 on the fixing plate 421, thereby adjusting the direction of the rotation center axis of the rotating platform 2. Further preferably, the first adjusting screw 422 is a machine screw.

[0040] Refer again Figure 1 and Figure 2 As a further preferred embodiment of the present invention, the adjustment seat 4 also includes a concentric adjustment piece 43, the parallel adjustment piece 42 and / or the turntable mounting seat 41 are embedded in the concentric adjustment piece 43, and a second adjustment screw 431 is provided on the concentric adjustment piece 43, the second adjustment screw 431 passes through the concentric adjustment piece 43 and is supported and / or abutted on the side wall of the parallel adjustment piece 42 and / or the turntable mounting seat 41.

[0041] In the above preferred embodiment, the second adjusting screw 431 installed on the concentric adjusting member 43 is abutted and / or supported on the parallel adjusting member 42 and / or the turntable mounting seat 41 so that the parallel adjusting member 42 and / or the turntable mounting seat 41 can move on the end surface of the coupling 7 with the support of the second adjusting screw 431, thereby driving the rotating platform 2 to move, so that the rotation center axis of the rotating platform 2 coincides with the rotation center axis at both ends of the coupling 7.

[0042] Refer again Figure 1 and Figure 2 As a further preferred embodiment of the present invention, a square hole is set and / or combined on the concentric adjustment member 43, and the parallel adjustment member 42 and / or the turntable mounting seat 41 is set at one end close to the mounting seat 1 as a square that matches the concentric adjustment member 43, and second adjusting screws 431 are set on all four sides of the square hole.

[0043] Refer again Figure 1 or Figure 2In the above preferred embodiment, a square hole is provided on the concentric adjustment member 43, and the parallel adjustment member 42 and / or the turntable mounting seat 41 are set to a direction compatible therewith, so that the operator can adjust the movement of the rotating platform 2 by adjusting the second adjustment screw 431 in different directions.

[0044] As a further preferred embodiment of the present invention, the self-rotating base for centering the coupling 7 also includes a driving device 5, which is fixedly mounted on the turntable mounting seat 41 and is transmission-connected to the rotating platform 2 so that the driving device 5 can drive the rotating platform 2 to rotate.

[0045] Preferably, the driving device 5 can be directly connected to the rotating platform 2, or can be connected through a transmission mechanism. The preferred driving device 5 is a motor. Specifically, the driving device 5 can be a servo motor, a stepper motor, a DD servo motor directly driving the rotating platform 2, a rotating platform 2 in a servo motor or stepper motor synchronous belt transmission mode, a turbine pair turntable, a planetary gear reduction turntable, a harmonic reducer CNC turntable, a split stick turbine reducer turntable, etc. It should be noted that in the above embodiments, only the motor form is different, and specific users can choose different motors and linkage methods as needed, so that the motor drives the rotating platform 2 to rotate.

[0046] Reference Figures 1 to 6 A further preferred embodiment of the present invention is a self-rotating base for coupling centering, which further includes a centering instrument bracket 6, one end of which is connected to the rotating platform 2, and the other end of which is fixedly mounted with the centering instrument 3.

[0047] Preferably, one end of the centering instrument bracket 6 is provided with a connection block adapted to the rotating platform 2, and is positioned and connected to the rotating platform 2 through the connection block. Specifically, the centering instrument bracket 6 is fixed to the rotating platform 2 by bolts and / or screws. Further preferably, the other end of the centering instrument bracket 6 is fixedly connected to the centering instrument 3.

[0048] In the above preferred embodiment, by setting the centering instrument bracket 6, the centering instrument 3 can rotate around the rotation center axis of the rotating platform 2, and the operator can set the length of the centering instrument bracket 6 as needed to be used for couplings of different sizes. Preferably, the centering instrument bracket 6 is set as a telescopic rod so that the operator can adjust the length of the centering instrument bracket 6 as needed to be used for couplings of different models.

[0049] Reference Figures 1 to 6 The operation steps of the self-rotating base for coupling alignment described in the present invention are as follows:

[0050] S1: Installation of the rotation base

[0051] The operator first attaches the mounting seat 1 to the end faces of the coupling 7 through magnets, and roughly adjusts the position of the mounting seat 1 to try to make the rotating platform 2 coaxial with the coupling 7. Furthermore, a dial indicator is installed on the rotating platform 2, and the end face and circumferential surface of the coupling are self-checked by the dial indicator, and the first adjusting screw 422 and / or the second adjusting screw 431 are adjusted according to the detection results of the dial indicator to achieve the precise coincidence of the concentricity and parallelism of the CNC turntable;

[0052] S2: Adjust the centering instrument

[0053] After the rotating platform 2 is corrected for concentricity and parallelism, the centering instrument 3 and the centering instrument bracket 6 are respectively installed on the rotating platform 2, and the centering instrument 3 on the rotating platforms 2 at both ends of the coupling is arranged relative to each other by rotating the coupling. Then, the computer controls the driving device 5 to lock the rotating platforms 2 at both ends of the coupling 7, and switches to linkage control, that is, the rotating platforms 2 at both ends of the coupling 7 are controlled to rotate in the same direction and synchronously, thereby simulating the rotation of the motor and pump shaft under test. Specifically, the operator can set pulses on the control computer to control the rotation speed of the rotating platform 2.

[0054] S3: Obtain error data and calculate the coaxiality and parallelism error values ​​at both ends of the coupling 7

[0055] By controlling the rotating platform 2 to rotate a certain angle and measuring the distance between the centering instruments 3 at both ends of the coupling 7 at different angles, the centering instrument 3 can obtain a correct, synchronous and continuous change in the real physical data of the coupling, thereby calculating the coaxiality error value and adjustment value between the measured motor and the water pump.

[0056] S4: Adjust the coupling

[0057] The operator adjusts the positions of the two ends of the coupling according to the adjustment values ​​calculated by the centering instrument 3. Specifically, the coaxiality of the two ends of the coupling can be improved by placing gaskets under the two ends of the coupling or pushing the device forward, backward, left and right.

[0058] S5: Repeat S3 and S4 until the coaxiality of both ends of the coupling meets the relevant technical standards.

[0059] S6: Disassemble the centering instrument 3 and the rotation base.

[0060] The present invention solves the problem of difficulty in adjusting the coupling centering when the power input and output shaft couplings are installed at large intervals in super-large motors, generators, steam turbines, fans, refineries, steel mills and super-large ocean-going cargo ships of 500KW or even MW level. It saves time, reduces labor intensity, and improves efficiency and maintenance and installation quality. Specifically, due to the problem that the super-large motor couplings cannot be synchronously turned when installed at large intervals and the inconvenience of metering, the laser alignment instrument has very high requirements for the synchronous turning action. If the synchronous and stable turning cannot be achieved, the laser alignment instrument cannot detect accurate data, resulting in inaccurate detection results. The present invention uses a high-precision CNC turntable, i.e., a rotating platform 2, to simulate the action of the coupling 7 when turning, thereby realizing a true simulation of the synchronous turning action, so as to achieve the purpose of reducing labor intensity, improving work efficiency and maintenance and installation quality.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A self-rotating base for coupling alignment, characterized in that: The invention comprises a mounting seat (1) and a rotating platform (2), wherein the mounting seat (1) is used to be connected to two ends of a coupling to be calibrated and aligned, the rotating platform (2) is hinged to the mounting seat (1), and the rotating platform (2) is used to install an alignment instrument (3) for coupling calibration, so that the rotating platform (2) can drive the alignment instrument (3) to rotate; The mounting seat (1) is provided with a magnet groove (11), and a magnet is embedded in the magnet groove (11), so that the mounting seat (1) can be adsorbed on the two ends of the coupling to be calibrated and aligned through the magnet; It also comprises an adjustment seat (4), one end of which is movably connected to the mounting seat (1), and the other end of which is hinged to the rotating platform (2), so that the rotating platform (2) is hinged to the mounting seat (1) through the adjustment seat (4); The adjustment seat (4) is connected to the mounting seat (1) by magnet adsorption.

2. The self-rotating base for coupling centering according to claim 1, characterized in that: The adjustment seat (4) comprises a turntable mounting seat (41) and a parallel adjustment member (42), wherein the parallel adjustment member (42) is connected to one end of the turntable mounting seat (41) close to the mounting seat (1), so that the parallel adjustment member (42) can adjust the rotation center axis of the rotating platform (2) to be parallel to the rotation center axis of the coupling.

3. The self-rotating base for coupling centering according to claim 2, characterized in that: The parallel adjustment member (42) further comprises a fixing plate (421) and a first adjustment screw (422); the fixing plate (421) is fixedly connected to the turntable mounting seat (41); a screw hole matching the first adjustment screw (422) is provided on the fixing plate (421); the first adjustment screw (422) passes through the screw hole on the fixing plate (421) and contacts and / or supports the mounting seat (1).

4. The self-rotating base for coupling centering according to claim 3, characterized in that: The adjustment seat (4) further comprises a concentric adjustment member (43), the parallel adjustment member (42) and / or the turntable mounting seat (41) are embedded in the concentric adjustment member (43), and a second adjustment screw (431) is arranged on the concentric adjustment member (43), and the second adjustment screw (431) passes through the concentric adjustment member (43) and supports and / or contacts the side wall of the parallel adjustment member (42) and / or the turntable mounting seat (41).

5. The self-rotating base for coupling centering according to claim 4, characterized in that: The concentric adjustment member (43) is provided with and / or combined into a square hole, the parallel adjustment member (42) and / or the turntable mounting seat (41) are / is provided with a square shape matching the concentric adjustment member (43) at one end close to the mounting seat (1), and the four sides of the square hole are provided with second adjustment screws (431).

6. The self-rotating base for coupling centering according to claim 3, characterized in that: It also comprises a driving device (5), wherein the driving device (5) is fixedly mounted on the turntable mounting seat (41), and the driving device (5) is in transmission connection with the rotating platform (2), so that the driving device (5) can drive the rotating platform (2) to rotate.

7. The self-rotating base for coupling centering according to claim 1, characterized in that: It also comprises a centering instrument bracket (6), one end of which is connected to the rotating platform (2), and the other end of which is fixedly mounted with the centering instrument (3).

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